--- /dev/null
- s->dsp.draw_edges(ref->hpel[plane][0], ref->avframe->linesize[plane], width, height, edge, edge, EDGE_TOP | EDGE_BOTTOM); /* EDGE_TOP | EDGE_BOTTOM values just copied to make it build, this needs to be ensured */
+/*
+ * Copyright (C) 2007 Marco Gerards <marco@gnu.org>
+ * Copyright (C) 2009 David Conrad
+ * Copyright (C) 2011 Jordi Ortiz
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Dirac Decoder
+ * @author Marco Gerards <marco@gnu.org>, David Conrad, Jordi Ortiz <nenjordi@gmail.com>
+ */
+
+#include "avcodec.h"
+#include "dsputil.h"
+#include "get_bits.h"
+#include "bytestream.h"
+#include "internal.h"
+#include "golomb.h"
+#include "dirac_arith.h"
+#include "mpeg12data.h"
++#include "libavcodec/mpegvideo.h"
++#include "mpegvideoencdsp.h"
+#include "dirac_dwt.h"
+#include "dirac.h"
+#include "diracdsp.h"
+#include "videodsp.h" // for ff_emulated_edge_mc_8
+
+/**
+ * The spec limits the number of wavelet decompositions to 4 for both
+ * level 1 (VC-2) and 128 (long-gop default).
+ * 5 decompositions is the maximum before >16-bit buffers are needed.
+ * Schroedinger allows this for DD 9,7 and 13,7 wavelets only, limiting
+ * the others to 4 decompositions (or 3 for the fidelity filter).
+ *
+ * We use this instead of MAX_DECOMPOSITIONS to save some memory.
+ */
+#define MAX_DWT_LEVELS 5
+
+/**
+ * The spec limits this to 3 for frame coding, but in practice can be as high as 6
+ */
+#define MAX_REFERENCE_FRAMES 8
+#define MAX_DELAY 5 /* limit for main profile for frame coding (TODO: field coding) */
+#define MAX_FRAMES (MAX_REFERENCE_FRAMES + MAX_DELAY + 1)
+#define MAX_QUANT 68 /* max quant for VC-2 */
+#define MAX_BLOCKSIZE 32 /* maximum xblen/yblen we support */
+
+/**
+ * DiracBlock->ref flags, if set then the block does MC from the given ref
+ */
+#define DIRAC_REF_MASK_REF1 1
+#define DIRAC_REF_MASK_REF2 2
+#define DIRAC_REF_MASK_GLOBAL 4
+
+/**
+ * Value of Picture.reference when Picture is not a reference picture, but
+ * is held for delayed output.
+ */
+#define DELAYED_PIC_REF 4
+
+#define ff_emulated_edge_mc ff_emulated_edge_mc_8 /* Fix: change the calls to this function regarding bit depth */
+
+#define CALC_PADDING(size, depth) \
+ (((size + (1 << depth) - 1) >> depth) << depth)
+
+#define DIVRNDUP(a, b) (((a) + (b) - 1) / (b))
+
+typedef struct {
+ AVFrame *avframe;
+ int interpolated[3]; /* 1 if hpel[] is valid */
+ uint8_t *hpel[3][4];
+ uint8_t *hpel_base[3][4];
+} DiracFrame;
+
+typedef struct {
+ union {
+ int16_t mv[2][2];
+ int16_t dc[3];
+ } u; /* anonymous unions aren't in C99 :( */
+ uint8_t ref;
+} DiracBlock;
+
+typedef struct SubBand {
+ int level;
+ int orientation;
+ int stride;
+ int width;
+ int height;
+ int quant;
+ IDWTELEM *ibuf;
+ struct SubBand *parent;
+
+ /* for low delay */
+ unsigned length;
+ const uint8_t *coeff_data;
+} SubBand;
+
+typedef struct Plane {
+ int width;
+ int height;
+ ptrdiff_t stride;
+
+ int idwt_width;
+ int idwt_height;
+ int idwt_stride;
+ IDWTELEM *idwt_buf;
+ IDWTELEM *idwt_buf_base;
+ IDWTELEM *idwt_tmp;
+
+ /* block length */
+ uint8_t xblen;
+ uint8_t yblen;
+ /* block separation (block n+1 starts after this many pixels in block n) */
+ uint8_t xbsep;
+ uint8_t ybsep;
+ /* amount of overspill on each edge (half of the overlap between blocks) */
+ uint8_t xoffset;
+ uint8_t yoffset;
+
+ SubBand band[MAX_DWT_LEVELS][4];
+} Plane;
+
+typedef struct DiracContext {
+ AVCodecContext *avctx;
+ DSPContext dsp;
++ MpegvideoEncDSPContext mpvencdsp;
+ DiracDSPContext diracdsp;
+ GetBitContext gb;
+ dirac_source_params source;
+ int seen_sequence_header;
+ int frame_number; /* number of the next frame to display */
+ Plane plane[3];
+ int chroma_x_shift;
+ int chroma_y_shift;
+
+ int zero_res; /* zero residue flag */
+ int is_arith; /* whether coeffs use arith or golomb coding */
+ int low_delay; /* use the low delay syntax */
+ int globalmc_flag; /* use global motion compensation */
+ int num_refs; /* number of reference pictures */
+
+ /* wavelet decoding */
+ unsigned wavelet_depth; /* depth of the IDWT */
+ unsigned wavelet_idx;
+
+ /**
+ * schroedinger older than 1.0.8 doesn't store
+ * quant delta if only one codebook exists in a band
+ */
+ unsigned old_delta_quant;
+ unsigned codeblock_mode;
+
+ struct {
+ unsigned width;
+ unsigned height;
+ } codeblock[MAX_DWT_LEVELS+1];
+
+ struct {
+ unsigned num_x; /* number of horizontal slices */
+ unsigned num_y; /* number of vertical slices */
+ AVRational bytes; /* average bytes per slice */
+ uint8_t quant[MAX_DWT_LEVELS][4]; /* [DIRAC_STD] E.1 */
+ } lowdelay;
+
+ struct {
+ int pan_tilt[2]; /* pan/tilt vector */
+ int zrs[2][2]; /* zoom/rotate/shear matrix */
+ int perspective[2]; /* perspective vector */
+ unsigned zrs_exp;
+ unsigned perspective_exp;
+ } globalmc[2];
+
+ /* motion compensation */
+ uint8_t mv_precision; /* [DIRAC_STD] REFS_WT_PRECISION */
+ int16_t weight[2]; /* [DIRAC_STD] REF1_WT and REF2_WT */
+ unsigned weight_log2denom; /* [DIRAC_STD] REFS_WT_PRECISION */
+
+ int blwidth; /* number of blocks (horizontally) */
+ int blheight; /* number of blocks (vertically) */
+ int sbwidth; /* number of superblocks (horizontally) */
+ int sbheight; /* number of superblocks (vertically) */
+
+ uint8_t *sbsplit;
+ DiracBlock *blmotion;
+
+ uint8_t *edge_emu_buffer[4];
+ uint8_t *edge_emu_buffer_base;
+
+ uint16_t *mctmp; /* buffer holding the MC data multiplied by OBMC weights */
+ uint8_t *mcscratch;
+ int buffer_stride;
+
+ DECLARE_ALIGNED(16, uint8_t, obmc_weight)[3][MAX_BLOCKSIZE*MAX_BLOCKSIZE];
+
+ void (*put_pixels_tab[4])(uint8_t *dst, const uint8_t *src[5], int stride, int h);
+ void (*avg_pixels_tab[4])(uint8_t *dst, const uint8_t *src[5], int stride, int h);
+ void (*add_obmc)(uint16_t *dst, const uint8_t *src, int stride, const uint8_t *obmc_weight, int yblen);
+ dirac_weight_func weight_func;
+ dirac_biweight_func biweight_func;
+
+ DiracFrame *current_picture;
+ DiracFrame *ref_pics[2];
+
+ DiracFrame *ref_frames[MAX_REFERENCE_FRAMES+1];
+ DiracFrame *delay_frames[MAX_DELAY+1];
+ DiracFrame all_frames[MAX_FRAMES];
+} DiracContext;
+
+/**
+ * Dirac Specification ->
+ * Parse code values. 9.6.1 Table 9.1
+ */
+enum dirac_parse_code {
+ pc_seq_header = 0x00,
+ pc_eos = 0x10,
+ pc_aux_data = 0x20,
+ pc_padding = 0x30,
+};
+
+enum dirac_subband {
+ subband_ll = 0,
+ subband_hl = 1,
+ subband_lh = 2,
+ subband_hh = 3
+};
+
+static const uint8_t default_qmat[][4][4] = {
+ { { 5, 3, 3, 0}, { 0, 4, 4, 1}, { 0, 5, 5, 2}, { 0, 6, 6, 3} },
+ { { 4, 2, 2, 0}, { 0, 4, 4, 2}, { 0, 5, 5, 3}, { 0, 7, 7, 5} },
+ { { 5, 3, 3, 0}, { 0, 4, 4, 1}, { 0, 5, 5, 2}, { 0, 6, 6, 3} },
+ { { 8, 4, 4, 0}, { 0, 4, 4, 0}, { 0, 4, 4, 0}, { 0, 4, 4, 0} },
+ { { 8, 4, 4, 0}, { 0, 4, 4, 0}, { 0, 4, 4, 0}, { 0, 4, 4, 0} },
+ { { 0, 4, 4, 8}, { 0, 8, 8, 12}, { 0, 13, 13, 17}, { 0, 17, 17, 21} },
+ { { 3, 1, 1, 0}, { 0, 4, 4, 2}, { 0, 6, 6, 5}, { 0, 9, 9, 7} },
+};
+
+static const int qscale_tab[MAX_QUANT+1] = {
+ 4, 5, 6, 7, 8, 10, 11, 13,
+ 16, 19, 23, 27, 32, 38, 45, 54,
+ 64, 76, 91, 108, 128, 152, 181, 215,
+ 256, 304, 362, 431, 512, 609, 724, 861,
+ 1024, 1218, 1448, 1722, 2048, 2435, 2896, 3444,
+ 4096, 4871, 5793, 6889, 8192, 9742, 11585, 13777,
+ 16384, 19484, 23170, 27554, 32768, 38968, 46341, 55109,
+ 65536, 77936
+};
+
+static const int qoffset_intra_tab[MAX_QUANT+1] = {
+ 1, 2, 3, 4, 4, 5, 6, 7,
+ 8, 10, 12, 14, 16, 19, 23, 27,
+ 32, 38, 46, 54, 64, 76, 91, 108,
+ 128, 152, 181, 216, 256, 305, 362, 431,
+ 512, 609, 724, 861, 1024, 1218, 1448, 1722,
+ 2048, 2436, 2897, 3445, 4096, 4871, 5793, 6889,
+ 8192, 9742, 11585, 13777, 16384, 19484, 23171, 27555,
+ 32768, 38968
+};
+
+static const int qoffset_inter_tab[MAX_QUANT+1] = {
+ 1, 2, 2, 3, 3, 4, 4, 5,
+ 6, 7, 9, 10, 12, 14, 17, 20,
+ 24, 29, 34, 41, 48, 57, 68, 81,
+ 96, 114, 136, 162, 192, 228, 272, 323,
+ 384, 457, 543, 646, 768, 913, 1086, 1292,
+ 1536, 1827, 2172, 2583, 3072, 3653, 4344, 5166,
+ 6144, 7307, 8689, 10333, 12288, 14613, 17378, 20666,
+ 24576, 29226
+};
+
+/* magic number division by 3 from schroedinger */
+static inline int divide3(int x)
+{
+ return ((x+1)*21845 + 10922) >> 16;
+}
+
+static DiracFrame *remove_frame(DiracFrame *framelist[], int picnum)
+{
+ DiracFrame *remove_pic = NULL;
+ int i, remove_idx = -1;
+
+ for (i = 0; framelist[i]; i++)
+ if (framelist[i]->avframe->display_picture_number == picnum) {
+ remove_pic = framelist[i];
+ remove_idx = i;
+ }
+
+ if (remove_pic)
+ for (i = remove_idx; framelist[i]; i++)
+ framelist[i] = framelist[i+1];
+
+ return remove_pic;
+}
+
+static int add_frame(DiracFrame *framelist[], int maxframes, DiracFrame *frame)
+{
+ int i;
+ for (i = 0; i < maxframes; i++)
+ if (!framelist[i]) {
+ framelist[i] = frame;
+ return 0;
+ }
+ return -1;
+}
+
+static int alloc_sequence_buffers(DiracContext *s)
+{
+ int sbwidth = DIVRNDUP(s->source.width, 4);
+ int sbheight = DIVRNDUP(s->source.height, 4);
+ int i, w, h, top_padding;
+
+ /* todo: think more about this / use or set Plane here */
+ for (i = 0; i < 3; i++) {
+ int max_xblen = MAX_BLOCKSIZE >> (i ? s->chroma_x_shift : 0);
+ int max_yblen = MAX_BLOCKSIZE >> (i ? s->chroma_y_shift : 0);
+ w = s->source.width >> (i ? s->chroma_x_shift : 0);
+ h = s->source.height >> (i ? s->chroma_y_shift : 0);
+
+ /* we allocate the max we support here since num decompositions can
+ * change from frame to frame. Stride is aligned to 16 for SIMD, and
+ * 1<<MAX_DWT_LEVELS top padding to avoid if(y>0) in arith decoding
+ * MAX_BLOCKSIZE padding for MC: blocks can spill up to half of that
+ * on each side */
+ top_padding = FFMAX(1<<MAX_DWT_LEVELS, max_yblen/2);
+ w = FFALIGN(CALC_PADDING(w, MAX_DWT_LEVELS), 8); /* FIXME: Should this be 16 for SSE??? */
+ h = top_padding + CALC_PADDING(h, MAX_DWT_LEVELS) + max_yblen/2;
+
+ s->plane[i].idwt_buf_base = av_mallocz_array((w+max_xblen), h * sizeof(IDWTELEM));
+ s->plane[i].idwt_tmp = av_malloc_array((w+16), sizeof(IDWTELEM));
+ s->plane[i].idwt_buf = s->plane[i].idwt_buf_base + top_padding*w;
+ if (!s->plane[i].idwt_buf_base || !s->plane[i].idwt_tmp)
+ return AVERROR(ENOMEM);
+ }
+
+ /* fixme: allocate using real stride here */
+ s->sbsplit = av_malloc_array(sbwidth, sbheight);
+ s->blmotion = av_malloc_array(sbwidth, sbheight * 16 * sizeof(*s->blmotion));
+
+ if (!s->sbsplit || !s->blmotion)
+ return AVERROR(ENOMEM);
+ return 0;
+}
+
+static int alloc_buffers(DiracContext *s, int stride)
+{
+ int w = s->source.width;
+ int h = s->source.height;
+
+ av_assert0(stride >= w);
+ stride += 64;
+
+ if (s->buffer_stride >= stride)
+ return 0;
+ s->buffer_stride = 0;
+
+ av_freep(&s->edge_emu_buffer_base);
+ memset(s->edge_emu_buffer, 0, sizeof(s->edge_emu_buffer));
+ av_freep(&s->mctmp);
+ av_freep(&s->mcscratch);
+
+ s->edge_emu_buffer_base = av_malloc_array(stride, MAX_BLOCKSIZE);
+
+ s->mctmp = av_malloc_array((stride+MAX_BLOCKSIZE), (h+MAX_BLOCKSIZE) * sizeof(*s->mctmp));
+ s->mcscratch = av_malloc_array(stride, MAX_BLOCKSIZE);
+
+ if (!s->edge_emu_buffer_base || !s->mctmp || !s->mcscratch)
+ return AVERROR(ENOMEM);
+
+ s->buffer_stride = stride;
+ return 0;
+}
+
+static void free_sequence_buffers(DiracContext *s)
+{
+ int i, j, k;
+
+ for (i = 0; i < MAX_FRAMES; i++) {
+ if (s->all_frames[i].avframe->data[0]) {
+ av_frame_unref(s->all_frames[i].avframe);
+ memset(s->all_frames[i].interpolated, 0, sizeof(s->all_frames[i].interpolated));
+ }
+
+ for (j = 0; j < 3; j++)
+ for (k = 1; k < 4; k++)
+ av_freep(&s->all_frames[i].hpel_base[j][k]);
+ }
+
+ memset(s->ref_frames, 0, sizeof(s->ref_frames));
+ memset(s->delay_frames, 0, sizeof(s->delay_frames));
+
+ for (i = 0; i < 3; i++) {
+ av_freep(&s->plane[i].idwt_buf_base);
+ av_freep(&s->plane[i].idwt_tmp);
+ }
+
+ s->buffer_stride = 0;
+ av_freep(&s->sbsplit);
+ av_freep(&s->blmotion);
+ av_freep(&s->edge_emu_buffer_base);
+
+ av_freep(&s->mctmp);
+ av_freep(&s->mcscratch);
+}
+
+static av_cold int dirac_decode_init(AVCodecContext *avctx)
+{
+ DiracContext *s = avctx->priv_data;
+ int i;
+
+ s->avctx = avctx;
+ s->frame_number = -1;
+
+ ff_dsputil_init(&s->dsp, avctx);
+ ff_diracdsp_init(&s->diracdsp);
++ ff_mpegvideoencdsp_init(&s->mpvencdsp, avctx);
+
+ for (i = 0; i < MAX_FRAMES; i++) {
+ s->all_frames[i].avframe = av_frame_alloc();
+ if (!s->all_frames[i].avframe) {
+ while (i > 0)
+ av_frame_free(&s->all_frames[--i].avframe);
+ return AVERROR(ENOMEM);
+ }
+ }
+
+ return 0;
+}
+
+static void dirac_decode_flush(AVCodecContext *avctx)
+{
+ DiracContext *s = avctx->priv_data;
+ free_sequence_buffers(s);
+ s->seen_sequence_header = 0;
+ s->frame_number = -1;
+}
+
+static av_cold int dirac_decode_end(AVCodecContext *avctx)
+{
+ DiracContext *s = avctx->priv_data;
+ int i;
+
+ dirac_decode_flush(avctx);
+ for (i = 0; i < MAX_FRAMES; i++)
+ av_frame_free(&s->all_frames[i].avframe);
+
+ return 0;
+}
+
+#define SIGN_CTX(x) (CTX_SIGN_ZERO + ((x) > 0) - ((x) < 0))
+
+static inline void coeff_unpack_arith(DiracArith *c, int qfactor, int qoffset,
+ SubBand *b, IDWTELEM *buf, int x, int y)
+{
+ int coeff, sign;
+ int sign_pred = 0;
+ int pred_ctx = CTX_ZPZN_F1;
+
+ /* Check if the parent subband has a 0 in the corresponding position */
+ if (b->parent)
+ pred_ctx += !!b->parent->ibuf[b->parent->stride * (y>>1) + (x>>1)] << 1;
+
+ if (b->orientation == subband_hl)
+ sign_pred = buf[-b->stride];
+
+ /* Determine if the pixel has only zeros in its neighbourhood */
+ if (x) {
+ pred_ctx += !(buf[-1] | buf[-b->stride] | buf[-1-b->stride]);
+ if (b->orientation == subband_lh)
+ sign_pred = buf[-1];
+ } else {
+ pred_ctx += !buf[-b->stride];
+ }
+
+ coeff = dirac_get_arith_uint(c, pred_ctx, CTX_COEFF_DATA);
+ if (coeff) {
+ coeff = (coeff * qfactor + qoffset + 2) >> 2;
+ sign = dirac_get_arith_bit(c, SIGN_CTX(sign_pred));
+ coeff = (coeff ^ -sign) + sign;
+ }
+ *buf = coeff;
+}
+
+static inline int coeff_unpack_golomb(GetBitContext *gb, int qfactor, int qoffset)
+{
+ int sign, coeff;
+
+ coeff = svq3_get_ue_golomb(gb);
+ if (coeff) {
+ coeff = (coeff * qfactor + qoffset + 2) >> 2;
+ sign = get_bits1(gb);
+ coeff = (coeff ^ -sign) + sign;
+ }
+ return coeff;
+}
+
+/**
+ * Decode the coeffs in the rectangle defined by left, right, top, bottom
+ * [DIRAC_STD] 13.4.3.2 Codeblock unpacking loop. codeblock()
+ */
+static inline void codeblock(DiracContext *s, SubBand *b,
+ GetBitContext *gb, DiracArith *c,
+ int left, int right, int top, int bottom,
+ int blockcnt_one, int is_arith)
+{
+ int x, y, zero_block;
+ int qoffset, qfactor;
+ IDWTELEM *buf;
+
+ /* check for any coded coefficients in this codeblock */
+ if (!blockcnt_one) {
+ if (is_arith)
+ zero_block = dirac_get_arith_bit(c, CTX_ZERO_BLOCK);
+ else
+ zero_block = get_bits1(gb);
+
+ if (zero_block)
+ return;
+ }
+
+ if (s->codeblock_mode && !(s->old_delta_quant && blockcnt_one)) {
+ int quant = b->quant;
+ if (is_arith)
+ quant += dirac_get_arith_int(c, CTX_DELTA_Q_F, CTX_DELTA_Q_DATA);
+ else
+ quant += dirac_get_se_golomb(gb);
+ if (quant < 0) {
+ av_log(s->avctx, AV_LOG_ERROR, "Invalid quant\n");
+ return;
+ }
+ b->quant = quant;
+ }
+
+ b->quant = FFMIN(b->quant, MAX_QUANT);
+
+ qfactor = qscale_tab[b->quant];
+ /* TODO: context pointer? */
+ if (!s->num_refs)
+ qoffset = qoffset_intra_tab[b->quant];
+ else
+ qoffset = qoffset_inter_tab[b->quant];
+
+ buf = b->ibuf + top * b->stride;
+ for (y = top; y < bottom; y++) {
+ for (x = left; x < right; x++) {
+ /* [DIRAC_STD] 13.4.4 Subband coefficients. coeff_unpack() */
+ if (is_arith)
+ coeff_unpack_arith(c, qfactor, qoffset, b, buf+x, x, y);
+ else
+ buf[x] = coeff_unpack_golomb(gb, qfactor, qoffset);
+ }
+ buf += b->stride;
+ }
+}
+
+/**
+ * Dirac Specification ->
+ * 13.3 intra_dc_prediction(band)
+ */
+static inline void intra_dc_prediction(SubBand *b)
+{
+ IDWTELEM *buf = b->ibuf;
+ int x, y;
+
+ for (x = 1; x < b->width; x++)
+ buf[x] += buf[x-1];
+ buf += b->stride;
+
+ for (y = 1; y < b->height; y++) {
+ buf[0] += buf[-b->stride];
+
+ for (x = 1; x < b->width; x++) {
+ int pred = buf[x - 1] + buf[x - b->stride] + buf[x - b->stride-1];
+ buf[x] += divide3(pred);
+ }
+ buf += b->stride;
+ }
+}
+
+/**
+ * Dirac Specification ->
+ * 13.4.2 Non-skipped subbands. subband_coeffs()
+ */
+static av_always_inline void decode_subband_internal(DiracContext *s, SubBand *b, int is_arith)
+{
+ int cb_x, cb_y, left, right, top, bottom;
+ DiracArith c;
+ GetBitContext gb;
+ int cb_width = s->codeblock[b->level + (b->orientation != subband_ll)].width;
+ int cb_height = s->codeblock[b->level + (b->orientation != subband_ll)].height;
+ int blockcnt_one = (cb_width + cb_height) == 2;
+
+ if (!b->length)
+ return;
+
+ init_get_bits8(&gb, b->coeff_data, b->length);
+
+ if (is_arith)
+ ff_dirac_init_arith_decoder(&c, &gb, b->length);
+
+ top = 0;
+ for (cb_y = 0; cb_y < cb_height; cb_y++) {
+ bottom = (b->height * (cb_y+1)) / cb_height;
+ left = 0;
+ for (cb_x = 0; cb_x < cb_width; cb_x++) {
+ right = (b->width * (cb_x+1)) / cb_width;
+ codeblock(s, b, &gb, &c, left, right, top, bottom, blockcnt_one, is_arith);
+ left = right;
+ }
+ top = bottom;
+ }
+
+ if (b->orientation == subband_ll && s->num_refs == 0)
+ intra_dc_prediction(b);
+}
+
+static int decode_subband_arith(AVCodecContext *avctx, void *b)
+{
+ DiracContext *s = avctx->priv_data;
+ decode_subband_internal(s, b, 1);
+ return 0;
+}
+
+static int decode_subband_golomb(AVCodecContext *avctx, void *arg)
+{
+ DiracContext *s = avctx->priv_data;
+ SubBand **b = arg;
+ decode_subband_internal(s, *b, 0);
+ return 0;
+}
+
+/**
+ * Dirac Specification ->
+ * [DIRAC_STD] 13.4.1 core_transform_data()
+ */
+static void decode_component(DiracContext *s, int comp)
+{
+ AVCodecContext *avctx = s->avctx;
+ SubBand *bands[3*MAX_DWT_LEVELS+1];
+ enum dirac_subband orientation;
+ int level, num_bands = 0;
+
+ /* Unpack all subbands at all levels. */
+ for (level = 0; level < s->wavelet_depth; level++) {
+ for (orientation = !!level; orientation < 4; orientation++) {
+ SubBand *b = &s->plane[comp].band[level][orientation];
+ bands[num_bands++] = b;
+
+ align_get_bits(&s->gb);
+ /* [DIRAC_STD] 13.4.2 subband() */
+ b->length = svq3_get_ue_golomb(&s->gb);
+ if (b->length) {
+ b->quant = svq3_get_ue_golomb(&s->gb);
+ align_get_bits(&s->gb);
+ b->coeff_data = s->gb.buffer + get_bits_count(&s->gb)/8;
+ b->length = FFMIN(b->length, FFMAX(get_bits_left(&s->gb)/8, 0));
+ skip_bits_long(&s->gb, b->length*8);
+ }
+ }
+ /* arithmetic coding has inter-level dependencies, so we can only execute one level at a time */
+ if (s->is_arith)
+ avctx->execute(avctx, decode_subband_arith, &s->plane[comp].band[level][!!level],
+ NULL, 4-!!level, sizeof(SubBand));
+ }
+ /* golomb coding has no inter-level dependencies, so we can execute all subbands in parallel */
+ if (!s->is_arith)
+ avctx->execute(avctx, decode_subband_golomb, bands, NULL, num_bands, sizeof(SubBand*));
+}
+
+/* [DIRAC_STD] 13.5.5.2 Luma slice subband data. luma_slice_band(level,orient,sx,sy) --> if b2 == NULL */
+/* [DIRAC_STD] 13.5.5.3 Chroma slice subband data. chroma_slice_band(level,orient,sx,sy) --> if b2 != NULL */
+static void lowdelay_subband(DiracContext *s, GetBitContext *gb, int quant,
+ int slice_x, int slice_y, int bits_end,
+ SubBand *b1, SubBand *b2)
+{
+ int left = b1->width * slice_x / s->lowdelay.num_x;
+ int right = b1->width *(slice_x+1) / s->lowdelay.num_x;
+ int top = b1->height * slice_y / s->lowdelay.num_y;
+ int bottom = b1->height *(slice_y+1) / s->lowdelay.num_y;
+
+ int qfactor = qscale_tab[FFMIN(quant, MAX_QUANT)];
+ int qoffset = qoffset_intra_tab[FFMIN(quant, MAX_QUANT)];
+
+ IDWTELEM *buf1 = b1->ibuf + top * b1->stride;
+ IDWTELEM *buf2 = b2 ? b2->ibuf + top * b2->stride : NULL;
+ int x, y;
+ /* we have to constantly check for overread since the spec explicitly
+ requires this, with the meaning that all remaining coeffs are set to 0 */
+ if (get_bits_count(gb) >= bits_end)
+ return;
+
+ for (y = top; y < bottom; y++) {
+ for (x = left; x < right; x++) {
+ buf1[x] = coeff_unpack_golomb(gb, qfactor, qoffset);
+ if (get_bits_count(gb) >= bits_end)
+ return;
+ if (buf2) {
+ buf2[x] = coeff_unpack_golomb(gb, qfactor, qoffset);
+ if (get_bits_count(gb) >= bits_end)
+ return;
+ }
+ }
+ buf1 += b1->stride;
+ if (buf2)
+ buf2 += b2->stride;
+ }
+}
+
+struct lowdelay_slice {
+ GetBitContext gb;
+ int slice_x;
+ int slice_y;
+ int bytes;
+};
+
+
+/**
+ * Dirac Specification ->
+ * 13.5.2 Slices. slice(sx,sy)
+ */
+static int decode_lowdelay_slice(AVCodecContext *avctx, void *arg)
+{
+ DiracContext *s = avctx->priv_data;
+ struct lowdelay_slice *slice = arg;
+ GetBitContext *gb = &slice->gb;
+ enum dirac_subband orientation;
+ int level, quant, chroma_bits, chroma_end;
+
+ int quant_base = get_bits(gb, 7); /*[DIRAC_STD] qindex */
+ int length_bits = av_log2(8 * slice->bytes)+1;
+ int luma_bits = get_bits_long(gb, length_bits);
+ int luma_end = get_bits_count(gb) + FFMIN(luma_bits, get_bits_left(gb));
+
+ /* [DIRAC_STD] 13.5.5.2 luma_slice_band */
+ for (level = 0; level < s->wavelet_depth; level++)
+ for (orientation = !!level; orientation < 4; orientation++) {
+ quant = FFMAX(quant_base - s->lowdelay.quant[level][orientation], 0);
+ lowdelay_subband(s, gb, quant, slice->slice_x, slice->slice_y, luma_end,
+ &s->plane[0].band[level][orientation], NULL);
+ }
+
+ /* consume any unused bits from luma */
+ skip_bits_long(gb, get_bits_count(gb) - luma_end);
+
+ chroma_bits = 8*slice->bytes - 7 - length_bits - luma_bits;
+ chroma_end = get_bits_count(gb) + FFMIN(chroma_bits, get_bits_left(gb));
+ /* [DIRAC_STD] 13.5.5.3 chroma_slice_band */
+ for (level = 0; level < s->wavelet_depth; level++)
+ for (orientation = !!level; orientation < 4; orientation++) {
+ quant = FFMAX(quant_base - s->lowdelay.quant[level][orientation], 0);
+ lowdelay_subband(s, gb, quant, slice->slice_x, slice->slice_y, chroma_end,
+ &s->plane[1].band[level][orientation],
+ &s->plane[2].band[level][orientation]);
+ }
+
+ return 0;
+}
+
+/**
+ * Dirac Specification ->
+ * 13.5.1 low_delay_transform_data()
+ */
+static void decode_lowdelay(DiracContext *s)
+{
+ AVCodecContext *avctx = s->avctx;
+ int slice_x, slice_y, bytes, bufsize;
+ const uint8_t *buf;
+ struct lowdelay_slice *slices;
+ int slice_num = 0;
+
+ slices = av_mallocz_array(s->lowdelay.num_x, s->lowdelay.num_y * sizeof(struct lowdelay_slice));
+
+ align_get_bits(&s->gb);
+ /*[DIRAC_STD] 13.5.2 Slices. slice(sx,sy) */
+ buf = s->gb.buffer + get_bits_count(&s->gb)/8;
+ bufsize = get_bits_left(&s->gb);
+
+ for (slice_y = 0; bufsize > 0 && slice_y < s->lowdelay.num_y; slice_y++)
+ for (slice_x = 0; bufsize > 0 && slice_x < s->lowdelay.num_x; slice_x++) {
+ bytes = (slice_num+1) * s->lowdelay.bytes.num / s->lowdelay.bytes.den
+ - slice_num * s->lowdelay.bytes.num / s->lowdelay.bytes.den;
+
+ slices[slice_num].bytes = bytes;
+ slices[slice_num].slice_x = slice_x;
+ slices[slice_num].slice_y = slice_y;
+ init_get_bits(&slices[slice_num].gb, buf, bufsize);
+ slice_num++;
+
+ buf += bytes;
+ bufsize -= bytes*8;
+ }
+
+ avctx->execute(avctx, decode_lowdelay_slice, slices, NULL, slice_num,
+ sizeof(struct lowdelay_slice)); /* [DIRAC_STD] 13.5.2 Slices */
+ intra_dc_prediction(&s->plane[0].band[0][0]); /* [DIRAC_STD] 13.3 intra_dc_prediction() */
+ intra_dc_prediction(&s->plane[1].band[0][0]); /* [DIRAC_STD] 13.3 intra_dc_prediction() */
+ intra_dc_prediction(&s->plane[2].band[0][0]); /* [DIRAC_STD] 13.3 intra_dc_prediction() */
+ av_free(slices);
+}
+
+static void init_planes(DiracContext *s)
+{
+ int i, w, h, level, orientation;
+
+ for (i = 0; i < 3; i++) {
+ Plane *p = &s->plane[i];
+
+ p->width = s->source.width >> (i ? s->chroma_x_shift : 0);
+ p->height = s->source.height >> (i ? s->chroma_y_shift : 0);
+ p->idwt_width = w = CALC_PADDING(p->width , s->wavelet_depth);
+ p->idwt_height = h = CALC_PADDING(p->height, s->wavelet_depth);
+ p->idwt_stride = FFALIGN(p->idwt_width, 8);
+
+ for (level = s->wavelet_depth-1; level >= 0; level--) {
+ w = w>>1;
+ h = h>>1;
+ for (orientation = !!level; orientation < 4; orientation++) {
+ SubBand *b = &p->band[level][orientation];
+
+ b->ibuf = p->idwt_buf;
+ b->level = level;
+ b->stride = p->idwt_stride << (s->wavelet_depth - level);
+ b->width = w;
+ b->height = h;
+ b->orientation = orientation;
+
+ if (orientation & 1)
+ b->ibuf += w;
+ if (orientation > 1)
+ b->ibuf += b->stride>>1;
+
+ if (level)
+ b->parent = &p->band[level-1][orientation];
+ }
+ }
+
+ if (i > 0) {
+ p->xblen = s->plane[0].xblen >> s->chroma_x_shift;
+ p->yblen = s->plane[0].yblen >> s->chroma_y_shift;
+ p->xbsep = s->plane[0].xbsep >> s->chroma_x_shift;
+ p->ybsep = s->plane[0].ybsep >> s->chroma_y_shift;
+ }
+
+ p->xoffset = (p->xblen - p->xbsep)/2;
+ p->yoffset = (p->yblen - p->ybsep)/2;
+ }
+}
+
+/**
+ * Unpack the motion compensation parameters
+ * Dirac Specification ->
+ * 11.2 Picture prediction data. picture_prediction()
+ */
+static int dirac_unpack_prediction_parameters(DiracContext *s)
+{
+ static const uint8_t default_blen[] = { 4, 12, 16, 24 };
+ static const uint8_t default_bsep[] = { 4, 8, 12, 16 };
+
+ GetBitContext *gb = &s->gb;
+ unsigned idx, ref;
+
+ align_get_bits(gb);
+ /* [DIRAC_STD] 11.2.2 Block parameters. block_parameters() */
+ /* Luma and Chroma are equal. 11.2.3 */
+ idx = svq3_get_ue_golomb(gb); /* [DIRAC_STD] index */
+
+ if (idx > 4) {
+ av_log(s->avctx, AV_LOG_ERROR, "Block prediction index too high\n");
+ return -1;
+ }
+
+ if (idx == 0) {
+ s->plane[0].xblen = svq3_get_ue_golomb(gb);
+ s->plane[0].yblen = svq3_get_ue_golomb(gb);
+ s->plane[0].xbsep = svq3_get_ue_golomb(gb);
+ s->plane[0].ybsep = svq3_get_ue_golomb(gb);
+ } else {
+ /*[DIRAC_STD] preset_block_params(index). Table 11.1 */
+ s->plane[0].xblen = default_blen[idx-1];
+ s->plane[0].yblen = default_blen[idx-1];
+ s->plane[0].xbsep = default_bsep[idx-1];
+ s->plane[0].ybsep = default_bsep[idx-1];
+ }
+ /*[DIRAC_STD] 11.2.4 motion_data_dimensions()
+ Calculated in function dirac_unpack_block_motion_data */
+
+ if (!s->plane[0].xbsep || !s->plane[0].ybsep || s->plane[0].xbsep < s->plane[0].xblen/2 || s->plane[0].ybsep < s->plane[0].yblen/2) {
+ av_log(s->avctx, AV_LOG_ERROR, "Block separation too small\n");
+ return -1;
+ }
+ if (s->plane[0].xbsep > s->plane[0].xblen || s->plane[0].ybsep > s->plane[0].yblen) {
+ av_log(s->avctx, AV_LOG_ERROR, "Block separation greater than size\n");
+ return -1;
+ }
+ if (FFMAX(s->plane[0].xblen, s->plane[0].yblen) > MAX_BLOCKSIZE) {
+ av_log(s->avctx, AV_LOG_ERROR, "Unsupported large block size\n");
+ return -1;
+ }
+
+ /*[DIRAC_STD] 11.2.5 Motion vector precision. motion_vector_precision()
+ Read motion vector precision */
+ s->mv_precision = svq3_get_ue_golomb(gb);
+ if (s->mv_precision > 3) {
+ av_log(s->avctx, AV_LOG_ERROR, "MV precision finer than eighth-pel\n");
+ return -1;
+ }
+
+ /*[DIRAC_STD] 11.2.6 Global motion. global_motion()
+ Read the global motion compensation parameters */
+ s->globalmc_flag = get_bits1(gb);
+ if (s->globalmc_flag) {
+ memset(s->globalmc, 0, sizeof(s->globalmc));
+ /* [DIRAC_STD] pan_tilt(gparams) */
+ for (ref = 0; ref < s->num_refs; ref++) {
+ if (get_bits1(gb)) {
+ s->globalmc[ref].pan_tilt[0] = dirac_get_se_golomb(gb);
+ s->globalmc[ref].pan_tilt[1] = dirac_get_se_golomb(gb);
+ }
+ /* [DIRAC_STD] zoom_rotate_shear(gparams)
+ zoom/rotation/shear parameters */
+ if (get_bits1(gb)) {
+ s->globalmc[ref].zrs_exp = svq3_get_ue_golomb(gb);
+ s->globalmc[ref].zrs[0][0] = dirac_get_se_golomb(gb);
+ s->globalmc[ref].zrs[0][1] = dirac_get_se_golomb(gb);
+ s->globalmc[ref].zrs[1][0] = dirac_get_se_golomb(gb);
+ s->globalmc[ref].zrs[1][1] = dirac_get_se_golomb(gb);
+ } else {
+ s->globalmc[ref].zrs[0][0] = 1;
+ s->globalmc[ref].zrs[1][1] = 1;
+ }
+ /* [DIRAC_STD] perspective(gparams) */
+ if (get_bits1(gb)) {
+ s->globalmc[ref].perspective_exp = svq3_get_ue_golomb(gb);
+ s->globalmc[ref].perspective[0] = dirac_get_se_golomb(gb);
+ s->globalmc[ref].perspective[1] = dirac_get_se_golomb(gb);
+ }
+ }
+ }
+
+ /*[DIRAC_STD] 11.2.7 Picture prediction mode. prediction_mode()
+ Picture prediction mode, not currently used. */
+ if (svq3_get_ue_golomb(gb)) {
+ av_log(s->avctx, AV_LOG_ERROR, "Unknown picture prediction mode\n");
+ return -1;
+ }
+
+ /* [DIRAC_STD] 11.2.8 Reference picture weight. reference_picture_weights()
+ just data read, weight calculation will be done later on. */
+ s->weight_log2denom = 1;
+ s->weight[0] = 1;
+ s->weight[1] = 1;
+
+ if (get_bits1(gb)) {
+ s->weight_log2denom = svq3_get_ue_golomb(gb);
+ s->weight[0] = dirac_get_se_golomb(gb);
+ if (s->num_refs == 2)
+ s->weight[1] = dirac_get_se_golomb(gb);
+ }
+ return 0;
+}
+
+/**
+ * Dirac Specification ->
+ * 11.3 Wavelet transform data. wavelet_transform()
+ */
+static int dirac_unpack_idwt_params(DiracContext *s)
+{
+ GetBitContext *gb = &s->gb;
+ int i, level;
+ unsigned tmp;
+
+#define CHECKEDREAD(dst, cond, errmsg) \
+ tmp = svq3_get_ue_golomb(gb); \
+ if (cond) { \
+ av_log(s->avctx, AV_LOG_ERROR, errmsg); \
+ return -1; \
+ }\
+ dst = tmp;
+
+ align_get_bits(gb);
+
+ s->zero_res = s->num_refs ? get_bits1(gb) : 0;
+ if (s->zero_res)
+ return 0;
+
+ /*[DIRAC_STD] 11.3.1 Transform parameters. transform_parameters() */
+ CHECKEDREAD(s->wavelet_idx, tmp > 6, "wavelet_idx is too big\n")
+
+ CHECKEDREAD(s->wavelet_depth, tmp > MAX_DWT_LEVELS || tmp < 1, "invalid number of DWT decompositions\n")
+
+ if (!s->low_delay) {
+ /* Codeblock parameters (core syntax only) */
+ if (get_bits1(gb)) {
+ for (i = 0; i <= s->wavelet_depth; i++) {
+ CHECKEDREAD(s->codeblock[i].width , tmp < 1, "codeblock width invalid\n")
+ CHECKEDREAD(s->codeblock[i].height, tmp < 1, "codeblock height invalid\n")
+ }
+
+ CHECKEDREAD(s->codeblock_mode, tmp > 1, "unknown codeblock mode\n")
+ } else
+ for (i = 0; i <= s->wavelet_depth; i++)
+ s->codeblock[i].width = s->codeblock[i].height = 1;
+ } else {
+ /* Slice parameters + quantization matrix*/
+ /*[DIRAC_STD] 11.3.4 Slice coding Parameters (low delay syntax only). slice_parameters() */
+ s->lowdelay.num_x = svq3_get_ue_golomb(gb);
+ s->lowdelay.num_y = svq3_get_ue_golomb(gb);
+ s->lowdelay.bytes.num = svq3_get_ue_golomb(gb);
+ s->lowdelay.bytes.den = svq3_get_ue_golomb(gb);
+
+ if (s->lowdelay.bytes.den <= 0) {
+ av_log(s->avctx,AV_LOG_ERROR,"Invalid lowdelay.bytes.den\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ /* [DIRAC_STD] 11.3.5 Quantisation matrices (low-delay syntax). quant_matrix() */
+ if (get_bits1(gb)) {
+ av_log(s->avctx,AV_LOG_DEBUG,"Low Delay: Has Custom Quantization Matrix!\n");
+ /* custom quantization matrix */
+ s->lowdelay.quant[0][0] = svq3_get_ue_golomb(gb);
+ for (level = 0; level < s->wavelet_depth; level++) {
+ s->lowdelay.quant[level][1] = svq3_get_ue_golomb(gb);
+ s->lowdelay.quant[level][2] = svq3_get_ue_golomb(gb);
+ s->lowdelay.quant[level][3] = svq3_get_ue_golomb(gb);
+ }
+ } else {
+ if (s->wavelet_depth > 4) {
+ av_log(s->avctx,AV_LOG_ERROR,"Mandatory custom low delay matrix missing for depth %d\n", s->wavelet_depth);
+ return AVERROR_INVALIDDATA;
+ }
+ /* default quantization matrix */
+ for (level = 0; level < s->wavelet_depth; level++)
+ for (i = 0; i < 4; i++) {
+ s->lowdelay.quant[level][i] = default_qmat[s->wavelet_idx][level][i];
+ /* haar with no shift differs for different depths */
+ if (s->wavelet_idx == 3)
+ s->lowdelay.quant[level][i] += 4*(s->wavelet_depth-1 - level);
+ }
+ }
+ }
+ return 0;
+}
+
+static inline int pred_sbsplit(uint8_t *sbsplit, int stride, int x, int y)
+{
+ static const uint8_t avgsplit[7] = { 0, 0, 1, 1, 1, 2, 2 };
+
+ if (!(x|y))
+ return 0;
+ else if (!y)
+ return sbsplit[-1];
+ else if (!x)
+ return sbsplit[-stride];
+
+ return avgsplit[sbsplit[-1] + sbsplit[-stride] + sbsplit[-stride-1]];
+}
+
+static inline int pred_block_mode(DiracBlock *block, int stride, int x, int y, int refmask)
+{
+ int pred;
+
+ if (!(x|y))
+ return 0;
+ else if (!y)
+ return block[-1].ref & refmask;
+ else if (!x)
+ return block[-stride].ref & refmask;
+
+ /* return the majority */
+ pred = (block[-1].ref & refmask) + (block[-stride].ref & refmask) + (block[-stride-1].ref & refmask);
+ return (pred >> 1) & refmask;
+}
+
+static inline void pred_block_dc(DiracBlock *block, int stride, int x, int y)
+{
+ int i, n = 0;
+
+ memset(block->u.dc, 0, sizeof(block->u.dc));
+
+ if (x && !(block[-1].ref & 3)) {
+ for (i = 0; i < 3; i++)
+ block->u.dc[i] += block[-1].u.dc[i];
+ n++;
+ }
+
+ if (y && !(block[-stride].ref & 3)) {
+ for (i = 0; i < 3; i++)
+ block->u.dc[i] += block[-stride].u.dc[i];
+ n++;
+ }
+
+ if (x && y && !(block[-1-stride].ref & 3)) {
+ for (i = 0; i < 3; i++)
+ block->u.dc[i] += block[-1-stride].u.dc[i];
+ n++;
+ }
+
+ if (n == 2) {
+ for (i = 0; i < 3; i++)
+ block->u.dc[i] = (block->u.dc[i]+1)>>1;
+ } else if (n == 3) {
+ for (i = 0; i < 3; i++)
+ block->u.dc[i] = divide3(block->u.dc[i]);
+ }
+}
+
+static inline void pred_mv(DiracBlock *block, int stride, int x, int y, int ref)
+{
+ int16_t *pred[3];
+ int refmask = ref+1;
+ int mask = refmask | DIRAC_REF_MASK_GLOBAL; /* exclude gmc blocks */
+ int n = 0;
+
+ if (x && (block[-1].ref & mask) == refmask)
+ pred[n++] = block[-1].u.mv[ref];
+
+ if (y && (block[-stride].ref & mask) == refmask)
+ pred[n++] = block[-stride].u.mv[ref];
+
+ if (x && y && (block[-stride-1].ref & mask) == refmask)
+ pred[n++] = block[-stride-1].u.mv[ref];
+
+ switch (n) {
+ case 0:
+ block->u.mv[ref][0] = 0;
+ block->u.mv[ref][1] = 0;
+ break;
+ case 1:
+ block->u.mv[ref][0] = pred[0][0];
+ block->u.mv[ref][1] = pred[0][1];
+ break;
+ case 2:
+ block->u.mv[ref][0] = (pred[0][0] + pred[1][0] + 1) >> 1;
+ block->u.mv[ref][1] = (pred[0][1] + pred[1][1] + 1) >> 1;
+ break;
+ case 3:
+ block->u.mv[ref][0] = mid_pred(pred[0][0], pred[1][0], pred[2][0]);
+ block->u.mv[ref][1] = mid_pred(pred[0][1], pred[1][1], pred[2][1]);
+ break;
+ }
+}
+
+static void global_mv(DiracContext *s, DiracBlock *block, int x, int y, int ref)
+{
+ int ez = s->globalmc[ref].zrs_exp;
+ int ep = s->globalmc[ref].perspective_exp;
+ int (*A)[2] = s->globalmc[ref].zrs;
+ int *b = s->globalmc[ref].pan_tilt;
+ int *c = s->globalmc[ref].perspective;
+
+ int m = (1<<ep) - (c[0]*x + c[1]*y);
+ int mx = m * ((A[0][0] * x + A[0][1]*y) + (1<<ez) * b[0]);
+ int my = m * ((A[1][0] * x + A[1][1]*y) + (1<<ez) * b[1]);
+
+ block->u.mv[ref][0] = (mx + (1<<(ez+ep))) >> (ez+ep);
+ block->u.mv[ref][1] = (my + (1<<(ez+ep))) >> (ez+ep);
+}
+
+static void decode_block_params(DiracContext *s, DiracArith arith[8], DiracBlock *block,
+ int stride, int x, int y)
+{
+ int i;
+
+ block->ref = pred_block_mode(block, stride, x, y, DIRAC_REF_MASK_REF1);
+ block->ref ^= dirac_get_arith_bit(arith, CTX_PMODE_REF1);
+
+ if (s->num_refs == 2) {
+ block->ref |= pred_block_mode(block, stride, x, y, DIRAC_REF_MASK_REF2);
+ block->ref ^= dirac_get_arith_bit(arith, CTX_PMODE_REF2) << 1;
+ }
+
+ if (!block->ref) {
+ pred_block_dc(block, stride, x, y);
+ for (i = 0; i < 3; i++)
+ block->u.dc[i] += dirac_get_arith_int(arith+1+i, CTX_DC_F1, CTX_DC_DATA);
+ return;
+ }
+
+ if (s->globalmc_flag) {
+ block->ref |= pred_block_mode(block, stride, x, y, DIRAC_REF_MASK_GLOBAL);
+ block->ref ^= dirac_get_arith_bit(arith, CTX_GLOBAL_BLOCK) << 2;
+ }
+
+ for (i = 0; i < s->num_refs; i++)
+ if (block->ref & (i+1)) {
+ if (block->ref & DIRAC_REF_MASK_GLOBAL) {
+ global_mv(s, block, x, y, i);
+ } else {
+ pred_mv(block, stride, x, y, i);
+ block->u.mv[i][0] += dirac_get_arith_int(arith + 4 + 2 * i, CTX_MV_F1, CTX_MV_DATA);
+ block->u.mv[i][1] += dirac_get_arith_int(arith + 5 + 2 * i, CTX_MV_F1, CTX_MV_DATA);
+ }
+ }
+}
+
+/**
+ * Copies the current block to the other blocks covered by the current superblock split mode
+ */
+static void propagate_block_data(DiracBlock *block, int stride, int size)
+{
+ int x, y;
+ DiracBlock *dst = block;
+
+ for (x = 1; x < size; x++)
+ dst[x] = *block;
+
+ for (y = 1; y < size; y++) {
+ dst += stride;
+ for (x = 0; x < size; x++)
+ dst[x] = *block;
+ }
+}
+
+/**
+ * Dirac Specification ->
+ * 12. Block motion data syntax
+ */
+static int dirac_unpack_block_motion_data(DiracContext *s)
+{
+ GetBitContext *gb = &s->gb;
+ uint8_t *sbsplit = s->sbsplit;
+ int i, x, y, q, p;
+ DiracArith arith[8];
+
+ align_get_bits(gb);
+
+ /* [DIRAC_STD] 11.2.4 and 12.2.1 Number of blocks and superblocks */
+ s->sbwidth = DIVRNDUP(s->source.width, 4*s->plane[0].xbsep);
+ s->sbheight = DIVRNDUP(s->source.height, 4*s->plane[0].ybsep);
+ s->blwidth = 4 * s->sbwidth;
+ s->blheight = 4 * s->sbheight;
+
+ /* [DIRAC_STD] 12.3.1 Superblock splitting modes. superblock_split_modes()
+ decode superblock split modes */
+ ff_dirac_init_arith_decoder(arith, gb, svq3_get_ue_golomb(gb)); /* svq3_get_ue_golomb(gb) is the length */
+ for (y = 0; y < s->sbheight; y++) {
+ for (x = 0; x < s->sbwidth; x++) {
+ unsigned int split = dirac_get_arith_uint(arith, CTX_SB_F1, CTX_SB_DATA);
+ if (split > 2)
+ return -1;
+ sbsplit[x] = (split + pred_sbsplit(sbsplit+x, s->sbwidth, x, y)) % 3;
+ }
+ sbsplit += s->sbwidth;
+ }
+
+ /* setup arith decoding */
+ ff_dirac_init_arith_decoder(arith, gb, svq3_get_ue_golomb(gb));
+ for (i = 0; i < s->num_refs; i++) {
+ ff_dirac_init_arith_decoder(arith + 4 + 2 * i, gb, svq3_get_ue_golomb(gb));
+ ff_dirac_init_arith_decoder(arith + 5 + 2 * i, gb, svq3_get_ue_golomb(gb));
+ }
+ for (i = 0; i < 3; i++)
+ ff_dirac_init_arith_decoder(arith+1+i, gb, svq3_get_ue_golomb(gb));
+
+ for (y = 0; y < s->sbheight; y++)
+ for (x = 0; x < s->sbwidth; x++) {
+ int blkcnt = 1 << s->sbsplit[y * s->sbwidth + x];
+ int step = 4 >> s->sbsplit[y * s->sbwidth + x];
+
+ for (q = 0; q < blkcnt; q++)
+ for (p = 0; p < blkcnt; p++) {
+ int bx = 4 * x + p*step;
+ int by = 4 * y + q*step;
+ DiracBlock *block = &s->blmotion[by*s->blwidth + bx];
+ decode_block_params(s, arith, block, s->blwidth, bx, by);
+ propagate_block_data(block, s->blwidth, step);
+ }
+ }
+
+ return 0;
+}
+
+static int weight(int i, int blen, int offset)
+{
+#define ROLLOFF(i) offset == 1 ? ((i) ? 5 : 3) : \
+ (1 + (6*(i) + offset - 1) / (2*offset - 1))
+
+ if (i < 2*offset)
+ return ROLLOFF(i);
+ else if (i > blen-1 - 2*offset)
+ return ROLLOFF(blen-1 - i);
+ return 8;
+}
+
+static void init_obmc_weight_row(Plane *p, uint8_t *obmc_weight, int stride,
+ int left, int right, int wy)
+{
+ int x;
+ for (x = 0; left && x < p->xblen >> 1; x++)
+ obmc_weight[x] = wy*8;
+ for (; x < p->xblen >> right; x++)
+ obmc_weight[x] = wy*weight(x, p->xblen, p->xoffset);
+ for (; x < p->xblen; x++)
+ obmc_weight[x] = wy*8;
+ for (; x < stride; x++)
+ obmc_weight[x] = 0;
+}
+
+static void init_obmc_weight(Plane *p, uint8_t *obmc_weight, int stride,
+ int left, int right, int top, int bottom)
+{
+ int y;
+ for (y = 0; top && y < p->yblen >> 1; y++) {
+ init_obmc_weight_row(p, obmc_weight, stride, left, right, 8);
+ obmc_weight += stride;
+ }
+ for (; y < p->yblen >> bottom; y++) {
+ int wy = weight(y, p->yblen, p->yoffset);
+ init_obmc_weight_row(p, obmc_weight, stride, left, right, wy);
+ obmc_weight += stride;
+ }
+ for (; y < p->yblen; y++) {
+ init_obmc_weight_row(p, obmc_weight, stride, left, right, 8);
+ obmc_weight += stride;
+ }
+}
+
+static void init_obmc_weights(DiracContext *s, Plane *p, int by)
+{
+ int top = !by;
+ int bottom = by == s->blheight-1;
+
+ /* don't bother re-initing for rows 2 to blheight-2, the weights don't change */
+ if (top || bottom || by == 1) {
+ init_obmc_weight(p, s->obmc_weight[0], MAX_BLOCKSIZE, 1, 0, top, bottom);
+ init_obmc_weight(p, s->obmc_weight[1], MAX_BLOCKSIZE, 0, 0, top, bottom);
+ init_obmc_weight(p, s->obmc_weight[2], MAX_BLOCKSIZE, 0, 1, top, bottom);
+ }
+}
+
+static const uint8_t epel_weights[4][4][4] = {
+ {{ 16, 0, 0, 0 },
+ { 12, 4, 0, 0 },
+ { 8, 8, 0, 0 },
+ { 4, 12, 0, 0 }},
+ {{ 12, 0, 4, 0 },
+ { 9, 3, 3, 1 },
+ { 6, 6, 2, 2 },
+ { 3, 9, 1, 3 }},
+ {{ 8, 0, 8, 0 },
+ { 6, 2, 6, 2 },
+ { 4, 4, 4, 4 },
+ { 2, 6, 2, 6 }},
+ {{ 4, 0, 12, 0 },
+ { 3, 1, 9, 3 },
+ { 2, 2, 6, 6 },
+ { 1, 3, 3, 9 }}
+};
+
+/**
+ * For block x,y, determine which of the hpel planes to do bilinear
+ * interpolation from and set src[] to the location in each hpel plane
+ * to MC from.
+ *
+ * @return the index of the put_dirac_pixels_tab function to use
+ * 0 for 1 plane (fpel,hpel), 1 for 2 planes (qpel), 2 for 4 planes (qpel), and 3 for epel
+ */
+static int mc_subpel(DiracContext *s, DiracBlock *block, const uint8_t *src[5],
+ int x, int y, int ref, int plane)
+{
+ Plane *p = &s->plane[plane];
+ uint8_t **ref_hpel = s->ref_pics[ref]->hpel[plane];
+ int motion_x = block->u.mv[ref][0];
+ int motion_y = block->u.mv[ref][1];
+ int mx, my, i, epel, nplanes = 0;
+
+ if (plane) {
+ motion_x >>= s->chroma_x_shift;
+ motion_y >>= s->chroma_y_shift;
+ }
+
+ mx = motion_x & ~(-1U << s->mv_precision);
+ my = motion_y & ~(-1U << s->mv_precision);
+ motion_x >>= s->mv_precision;
+ motion_y >>= s->mv_precision;
+ /* normalize subpel coordinates to epel */
+ /* TODO: template this function? */
+ mx <<= 3 - s->mv_precision;
+ my <<= 3 - s->mv_precision;
+
+ x += motion_x;
+ y += motion_y;
+ epel = (mx|my)&1;
+
+ /* hpel position */
+ if (!((mx|my)&3)) {
+ nplanes = 1;
+ src[0] = ref_hpel[(my>>1)+(mx>>2)] + y*p->stride + x;
+ } else {
+ /* qpel or epel */
+ nplanes = 4;
+ for (i = 0; i < 4; i++)
+ src[i] = ref_hpel[i] + y*p->stride + x;
+
+ /* if we're interpolating in the right/bottom halves, adjust the planes as needed
+ we increment x/y because the edge changes for half of the pixels */
+ if (mx > 4) {
+ src[0] += 1;
+ src[2] += 1;
+ x++;
+ }
+ if (my > 4) {
+ src[0] += p->stride;
+ src[1] += p->stride;
+ y++;
+ }
+
+ /* hpel planes are:
+ [0]: F [1]: H
+ [2]: V [3]: C */
+ if (!epel) {
+ /* check if we really only need 2 planes since either mx or my is
+ a hpel position. (epel weights of 0 handle this there) */
+ if (!(mx&3)) {
+ /* mx == 0: average [0] and [2]
+ mx == 4: average [1] and [3] */
+ src[!mx] = src[2 + !!mx];
+ nplanes = 2;
+ } else if (!(my&3)) {
+ src[0] = src[(my>>1) ];
+ src[1] = src[(my>>1)+1];
+ nplanes = 2;
+ }
+ } else {
+ /* adjust the ordering if needed so the weights work */
+ if (mx > 4) {
+ FFSWAP(const uint8_t *, src[0], src[1]);
+ FFSWAP(const uint8_t *, src[2], src[3]);
+ }
+ if (my > 4) {
+ FFSWAP(const uint8_t *, src[0], src[2]);
+ FFSWAP(const uint8_t *, src[1], src[3]);
+ }
+ src[4] = epel_weights[my&3][mx&3];
+ }
+ }
+
+ /* fixme: v/h _edge_pos */
+ if (x + p->xblen > p->width +EDGE_WIDTH/2 ||
+ y + p->yblen > p->height+EDGE_WIDTH/2 ||
+ x < 0 || y < 0) {
+ for (i = 0; i < nplanes; i++) {
+ ff_emulated_edge_mc(s->edge_emu_buffer[i], src[i],
+ p->stride, p->stride,
+ p->xblen, p->yblen, x, y,
+ p->width+EDGE_WIDTH/2, p->height+EDGE_WIDTH/2);
+ src[i] = s->edge_emu_buffer[i];
+ }
+ }
+ return (nplanes>>1) + epel;
+}
+
+static void add_dc(uint16_t *dst, int dc, int stride,
+ uint8_t *obmc_weight, int xblen, int yblen)
+{
+ int x, y;
+ dc += 128;
+
+ for (y = 0; y < yblen; y++) {
+ for (x = 0; x < xblen; x += 2) {
+ dst[x ] += dc * obmc_weight[x ];
+ dst[x+1] += dc * obmc_weight[x+1];
+ }
+ dst += stride;
+ obmc_weight += MAX_BLOCKSIZE;
+ }
+}
+
+static void block_mc(DiracContext *s, DiracBlock *block,
+ uint16_t *mctmp, uint8_t *obmc_weight,
+ int plane, int dstx, int dsty)
+{
+ Plane *p = &s->plane[plane];
+ const uint8_t *src[5];
+ int idx;
+
+ switch (block->ref&3) {
+ case 0: /* DC */
+ add_dc(mctmp, block->u.dc[plane], p->stride, obmc_weight, p->xblen, p->yblen);
+ return;
+ case 1:
+ case 2:
+ idx = mc_subpel(s, block, src, dstx, dsty, (block->ref&3)-1, plane);
+ s->put_pixels_tab[idx](s->mcscratch, src, p->stride, p->yblen);
+ if (s->weight_func)
+ s->weight_func(s->mcscratch, p->stride, s->weight_log2denom,
+ s->weight[0] + s->weight[1], p->yblen);
+ break;
+ case 3:
+ idx = mc_subpel(s, block, src, dstx, dsty, 0, plane);
+ s->put_pixels_tab[idx](s->mcscratch, src, p->stride, p->yblen);
+ idx = mc_subpel(s, block, src, dstx, dsty, 1, plane);
+ if (s->biweight_func) {
+ /* fixme: +32 is a quick hack */
+ s->put_pixels_tab[idx](s->mcscratch + 32, src, p->stride, p->yblen);
+ s->biweight_func(s->mcscratch, s->mcscratch+32, p->stride, s->weight_log2denom,
+ s->weight[0], s->weight[1], p->yblen);
+ } else
+ s->avg_pixels_tab[idx](s->mcscratch, src, p->stride, p->yblen);
+ break;
+ }
+ s->add_obmc(mctmp, s->mcscratch, p->stride, obmc_weight, p->yblen);
+}
+
+static void mc_row(DiracContext *s, DiracBlock *block, uint16_t *mctmp, int plane, int dsty)
+{
+ Plane *p = &s->plane[plane];
+ int x, dstx = p->xbsep - p->xoffset;
+
+ block_mc(s, block, mctmp, s->obmc_weight[0], plane, -p->xoffset, dsty);
+ mctmp += p->xbsep;
+
+ for (x = 1; x < s->blwidth-1; x++) {
+ block_mc(s, block+x, mctmp, s->obmc_weight[1], plane, dstx, dsty);
+ dstx += p->xbsep;
+ mctmp += p->xbsep;
+ }
+ block_mc(s, block+x, mctmp, s->obmc_weight[2], plane, dstx, dsty);
+}
+
+static void select_dsp_funcs(DiracContext *s, int width, int height, int xblen, int yblen)
+{
+ int idx = 0;
+ if (xblen > 8)
+ idx = 1;
+ if (xblen > 16)
+ idx = 2;
+
+ memcpy(s->put_pixels_tab, s->diracdsp.put_dirac_pixels_tab[idx], sizeof(s->put_pixels_tab));
+ memcpy(s->avg_pixels_tab, s->diracdsp.avg_dirac_pixels_tab[idx], sizeof(s->avg_pixels_tab));
+ s->add_obmc = s->diracdsp.add_dirac_obmc[idx];
+ if (s->weight_log2denom > 1 || s->weight[0] != 1 || s->weight[1] != 1) {
+ s->weight_func = s->diracdsp.weight_dirac_pixels_tab[idx];
+ s->biweight_func = s->diracdsp.biweight_dirac_pixels_tab[idx];
+ } else {
+ s->weight_func = NULL;
+ s->biweight_func = NULL;
+ }
+}
+
+static void interpolate_refplane(DiracContext *s, DiracFrame *ref, int plane, int width, int height)
+{
+ /* chroma allocates an edge of 8 when subsampled
+ which for 4:2:2 means an h edge of 16 and v edge of 8
+ just use 8 for everything for the moment */
+ int i, edge = EDGE_WIDTH/2;
+
+ ref->hpel[plane][0] = ref->avframe->data[plane];
- s->dsp.draw_edges(ref->hpel[plane][1], ref->avframe->linesize[plane], width, height, edge, edge, EDGE_TOP | EDGE_BOTTOM);
- s->dsp.draw_edges(ref->hpel[plane][2], ref->avframe->linesize[plane], width, height, edge, edge, EDGE_TOP | EDGE_BOTTOM);
- s->dsp.draw_edges(ref->hpel[plane][3], ref->avframe->linesize[plane], width, height, edge, edge, EDGE_TOP | EDGE_BOTTOM);
++ s->mpvencdsp.draw_edges(ref->hpel[plane][0], ref->avframe->linesize[plane], width, height, edge, edge, EDGE_TOP | EDGE_BOTTOM); /* EDGE_TOP | EDGE_BOTTOM values just copied to make it build, this needs to be ensured */
+
+ /* no need for hpel if we only have fpel vectors */
+ if (!s->mv_precision)
+ return;
+
+ for (i = 1; i < 4; i++) {
+ if (!ref->hpel_base[plane][i])
+ ref->hpel_base[plane][i] = av_malloc((height+2*edge) * ref->avframe->linesize[plane] + 32);
+ /* we need to be 16-byte aligned even for chroma */
+ ref->hpel[plane][i] = ref->hpel_base[plane][i] + edge*ref->avframe->linesize[plane] + 16;
+ }
+
+ if (!ref->interpolated[plane]) {
+ s->diracdsp.dirac_hpel_filter(ref->hpel[plane][1], ref->hpel[plane][2],
+ ref->hpel[plane][3], ref->hpel[plane][0],
+ ref->avframe->linesize[plane], width, height);
++ s->mpvencdsp.draw_edges(ref->hpel[plane][1], ref->avframe->linesize[plane], width, height, edge, edge, EDGE_TOP | EDGE_BOTTOM);
++ s->mpvencdsp.draw_edges(ref->hpel[plane][2], ref->avframe->linesize[plane], width, height, edge, edge, EDGE_TOP | EDGE_BOTTOM);
++ s->mpvencdsp.draw_edges(ref->hpel[plane][3], ref->avframe->linesize[plane], width, height, edge, edge, EDGE_TOP | EDGE_BOTTOM);
+ }
+ ref->interpolated[plane] = 1;
+}
+
+/**
+ * Dirac Specification ->
+ * 13.0 Transform data syntax. transform_data()
+ */
+static int dirac_decode_frame_internal(DiracContext *s)
+{
+ DWTContext d;
+ int y, i, comp, dsty;
+
+ if (s->low_delay) {
+ /* [DIRAC_STD] 13.5.1 low_delay_transform_data() */
+ for (comp = 0; comp < 3; comp++) {
+ Plane *p = &s->plane[comp];
+ memset(p->idwt_buf, 0, p->idwt_stride * p->idwt_height * sizeof(IDWTELEM));
+ }
+ if (!s->zero_res)
+ decode_lowdelay(s);
+ }
+
+ for (comp = 0; comp < 3; comp++) {
+ Plane *p = &s->plane[comp];
+ uint8_t *frame = s->current_picture->avframe->data[comp];
+
+ /* FIXME: small resolutions */
+ for (i = 0; i < 4; i++)
+ s->edge_emu_buffer[i] = s->edge_emu_buffer_base + i*FFALIGN(p->width, 16);
+
+ if (!s->zero_res && !s->low_delay)
+ {
+ memset(p->idwt_buf, 0, p->idwt_stride * p->idwt_height * sizeof(IDWTELEM));
+ decode_component(s, comp); /* [DIRAC_STD] 13.4.1 core_transform_data() */
+ }
+ if (ff_spatial_idwt_init2(&d, p->idwt_buf, p->idwt_width, p->idwt_height, p->idwt_stride,
+ s->wavelet_idx+2, s->wavelet_depth, p->idwt_tmp))
+ return -1;
+
+ if (!s->num_refs) { /* intra */
+ for (y = 0; y < p->height; y += 16) {
+ ff_spatial_idwt_slice2(&d, y+16); /* decode */
+ s->diracdsp.put_signed_rect_clamped(frame + y*p->stride, p->stride,
+ p->idwt_buf + y*p->idwt_stride, p->idwt_stride, p->width, 16);
+ }
+ } else { /* inter */
+ int rowheight = p->ybsep*p->stride;
+
+ select_dsp_funcs(s, p->width, p->height, p->xblen, p->yblen);
+
+ for (i = 0; i < s->num_refs; i++)
+ interpolate_refplane(s, s->ref_pics[i], comp, p->width, p->height);
+
+ memset(s->mctmp, 0, 4*p->yoffset*p->stride);
+
+ dsty = -p->yoffset;
+ for (y = 0; y < s->blheight; y++) {
+ int h = 0,
+ start = FFMAX(dsty, 0);
+ uint16_t *mctmp = s->mctmp + y*rowheight;
+ DiracBlock *blocks = s->blmotion + y*s->blwidth;
+
+ init_obmc_weights(s, p, y);
+
+ if (y == s->blheight-1 || start+p->ybsep > p->height)
+ h = p->height - start;
+ else
+ h = p->ybsep - (start - dsty);
+ if (h < 0)
+ break;
+
+ memset(mctmp+2*p->yoffset*p->stride, 0, 2*rowheight);
+ mc_row(s, blocks, mctmp, comp, dsty);
+
+ mctmp += (start - dsty)*p->stride + p->xoffset;
+ ff_spatial_idwt_slice2(&d, start + h); /* decode */
+ s->diracdsp.add_rect_clamped(frame + start*p->stride, mctmp, p->stride,
+ p->idwt_buf + start*p->idwt_stride, p->idwt_stride, p->width, h);
+
+ dsty += p->ybsep;
+ }
+ }
+ }
+
+
+ return 0;
+}
+
+static int get_buffer_with_edge(AVCodecContext *avctx, AVFrame *f, int flags)
+{
+ int ret, i;
+ int chroma_x_shift, chroma_y_shift;
+ avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_x_shift, &chroma_y_shift);
+
+ f->width = avctx->width + 2 * EDGE_WIDTH;
+ f->height = avctx->height + 2 * EDGE_WIDTH + 2;
+ ret = ff_get_buffer(avctx, f, flags);
+ if (ret < 0)
+ return ret;
+
+ for (i = 0; f->data[i]; i++) {
+ int offset = (EDGE_WIDTH >> (i && i<3 ? chroma_y_shift : 0)) *
+ f->linesize[i] + 32;
+ f->data[i] += offset;
+ }
+ f->width = avctx->width;
+ f->height = avctx->height;
+
+ return 0;
+}
+
+/**
+ * Dirac Specification ->
+ * 11.1.1 Picture Header. picture_header()
+ */
+static int dirac_decode_picture_header(DiracContext *s)
+{
+ int retire, picnum;
+ int i, j, refnum, refdist;
+ GetBitContext *gb = &s->gb;
+
+ /* [DIRAC_STD] 11.1.1 Picture Header. picture_header() PICTURE_NUM */
+ picnum = s->current_picture->avframe->display_picture_number = get_bits_long(gb, 32);
+
+
+ av_log(s->avctx,AV_LOG_DEBUG,"PICTURE_NUM: %d\n",picnum);
+
+ /* if this is the first keyframe after a sequence header, start our
+ reordering from here */
+ if (s->frame_number < 0)
+ s->frame_number = picnum;
+
+ s->ref_pics[0] = s->ref_pics[1] = NULL;
+ for (i = 0; i < s->num_refs; i++) {
+ refnum = picnum + dirac_get_se_golomb(gb);
+ refdist = INT_MAX;
+
+ /* find the closest reference to the one we want */
+ /* Jordi: this is needed if the referenced picture hasn't yet arrived */
+ for (j = 0; j < MAX_REFERENCE_FRAMES && refdist; j++)
+ if (s->ref_frames[j]
+ && FFABS(s->ref_frames[j]->avframe->display_picture_number - refnum) < refdist) {
+ s->ref_pics[i] = s->ref_frames[j];
+ refdist = FFABS(s->ref_frames[j]->avframe->display_picture_number - refnum);
+ }
+
+ if (!s->ref_pics[i] || refdist)
+ av_log(s->avctx, AV_LOG_DEBUG, "Reference not found\n");
+
+ /* if there were no references at all, allocate one */
+ if (!s->ref_pics[i])
+ for (j = 0; j < MAX_FRAMES; j++)
+ if (!s->all_frames[j].avframe->data[0]) {
+ s->ref_pics[i] = &s->all_frames[j];
+ get_buffer_with_edge(s->avctx, s->ref_pics[i]->avframe, AV_GET_BUFFER_FLAG_REF);
+ break;
+ }
+ }
+
+ /* retire the reference frames that are not used anymore */
+ if (s->current_picture->avframe->reference) {
+ retire = picnum + dirac_get_se_golomb(gb);
+ if (retire != picnum) {
+ DiracFrame *retire_pic = remove_frame(s->ref_frames, retire);
+
+ if (retire_pic)
+ retire_pic->avframe->reference &= DELAYED_PIC_REF;
+ else
+ av_log(s->avctx, AV_LOG_DEBUG, "Frame to retire not found\n");
+ }
+
+ /* if reference array is full, remove the oldest as per the spec */
+ while (add_frame(s->ref_frames, MAX_REFERENCE_FRAMES, s->current_picture)) {
+ av_log(s->avctx, AV_LOG_ERROR, "Reference frame overflow\n");
+ remove_frame(s->ref_frames, s->ref_frames[0]->avframe->display_picture_number)->avframe->reference &= DELAYED_PIC_REF;
+ }
+ }
+
+ if (s->num_refs) {
+ if (dirac_unpack_prediction_parameters(s)) /* [DIRAC_STD] 11.2 Picture Prediction Data. picture_prediction() */
+ return -1;
+ if (dirac_unpack_block_motion_data(s)) /* [DIRAC_STD] 12. Block motion data syntax */
+ return -1;
+ }
+ if (dirac_unpack_idwt_params(s)) /* [DIRAC_STD] 11.3 Wavelet transform data */
+ return -1;
+
+ init_planes(s);
+ return 0;
+}
+
+static int get_delayed_pic(DiracContext *s, AVFrame *picture, int *got_frame)
+{
+ DiracFrame *out = s->delay_frames[0];
+ int i, out_idx = 0;
+ int ret;
+
+ /* find frame with lowest picture number */
+ for (i = 1; s->delay_frames[i]; i++)
+ if (s->delay_frames[i]->avframe->display_picture_number < out->avframe->display_picture_number) {
+ out = s->delay_frames[i];
+ out_idx = i;
+ }
+
+ for (i = out_idx; s->delay_frames[i]; i++)
+ s->delay_frames[i] = s->delay_frames[i+1];
+
+ if (out) {
+ out->avframe->reference ^= DELAYED_PIC_REF;
+ *got_frame = 1;
+ if((ret = av_frame_ref(picture, out->avframe)) < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+/**
+ * Dirac Specification ->
+ * 9.6 Parse Info Header Syntax. parse_info()
+ * 4 byte start code + byte parse code + 4 byte size + 4 byte previous size
+ */
+#define DATA_UNIT_HEADER_SIZE 13
+
+/* [DIRAC_STD] dirac_decode_data_unit makes reference to the while defined in 9.3
+ inside the function parse_sequence() */
+static int dirac_decode_data_unit(AVCodecContext *avctx, const uint8_t *buf, int size)
+{
+ DiracContext *s = avctx->priv_data;
+ DiracFrame *pic = NULL;
+ int ret, i, parse_code = buf[4];
+ unsigned tmp;
+
+ if (size < DATA_UNIT_HEADER_SIZE)
+ return -1;
+
+ init_get_bits(&s->gb, &buf[13], 8*(size - DATA_UNIT_HEADER_SIZE));
+
+ if (parse_code == pc_seq_header) {
+ if (s->seen_sequence_header)
+ return 0;
+
+ /* [DIRAC_STD] 10. Sequence header */
+ if (avpriv_dirac_parse_sequence_header(avctx, &s->gb, &s->source))
+ return -1;
+
+ avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_x_shift, &s->chroma_y_shift);
+
+ if (alloc_sequence_buffers(s))
+ return -1;
+
+ s->seen_sequence_header = 1;
+ } else if (parse_code == pc_eos) { /* [DIRAC_STD] End of Sequence */
+ free_sequence_buffers(s);
+ s->seen_sequence_header = 0;
+ } else if (parse_code == pc_aux_data) {
+ if (buf[13] == 1) { /* encoder implementation/version */
+ int ver[3];
+ /* versions older than 1.0.8 don't store quant delta for
+ subbands with only one codeblock */
+ if (sscanf(buf+14, "Schroedinger %d.%d.%d", ver, ver+1, ver+2) == 3)
+ if (ver[0] == 1 && ver[1] == 0 && ver[2] <= 7)
+ s->old_delta_quant = 1;
+ }
+ } else if (parse_code & 0x8) { /* picture data unit */
+ if (!s->seen_sequence_header) {
+ av_log(avctx, AV_LOG_DEBUG, "Dropping frame without sequence header\n");
+ return -1;
+ }
+
+ /* find an unused frame */
+ for (i = 0; i < MAX_FRAMES; i++)
+ if (s->all_frames[i].avframe->data[0] == NULL)
+ pic = &s->all_frames[i];
+ if (!pic) {
+ av_log(avctx, AV_LOG_ERROR, "framelist full\n");
+ return -1;
+ }
+
+ av_frame_unref(pic->avframe);
+
+ /* [DIRAC_STD] Defined in 9.6.1 ... */
+ tmp = parse_code & 0x03; /* [DIRAC_STD] num_refs() */
+ if (tmp > 2) {
+ av_log(avctx, AV_LOG_ERROR, "num_refs of 3\n");
+ return -1;
+ }
+ s->num_refs = tmp;
+ s->is_arith = (parse_code & 0x48) == 0x08; /* [DIRAC_STD] using_ac() */
+ s->low_delay = (parse_code & 0x88) == 0x88; /* [DIRAC_STD] is_low_delay() */
+ pic->avframe->reference = (parse_code & 0x0C) == 0x0C; /* [DIRAC_STD] is_reference() */
+ pic->avframe->key_frame = s->num_refs == 0; /* [DIRAC_STD] is_intra() */
+ pic->avframe->pict_type = s->num_refs + 1; /* Definition of AVPictureType in avutil.h */
+
+ if ((ret = get_buffer_with_edge(avctx, pic->avframe, (parse_code & 0x0C) == 0x0C ? AV_GET_BUFFER_FLAG_REF : 0)) < 0)
+ return ret;
+ s->current_picture = pic;
+ s->plane[0].stride = pic->avframe->linesize[0];
+ s->plane[1].stride = pic->avframe->linesize[1];
+ s->plane[2].stride = pic->avframe->linesize[2];
+
+ if (alloc_buffers(s, FFMAX3(FFABS(s->plane[0].stride), FFABS(s->plane[1].stride), FFABS(s->plane[2].stride))) < 0)
+ return AVERROR(ENOMEM);
+
+ /* [DIRAC_STD] 11.1 Picture parse. picture_parse() */
+ if (dirac_decode_picture_header(s))
+ return -1;
+
+ /* [DIRAC_STD] 13.0 Transform data syntax. transform_data() */
+ if (dirac_decode_frame_internal(s))
+ return -1;
+ }
+ return 0;
+}
+
+static int dirac_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *pkt)
+{
+ DiracContext *s = avctx->priv_data;
+ AVFrame *picture = data;
+ uint8_t *buf = pkt->data;
+ int buf_size = pkt->size;
+ int i, data_unit_size, buf_idx = 0;
+ int ret;
+
+ /* release unused frames */
+ for (i = 0; i < MAX_FRAMES; i++)
+ if (s->all_frames[i].avframe->data[0] && !s->all_frames[i].avframe->reference) {
+ av_frame_unref(s->all_frames[i].avframe);
+ memset(s->all_frames[i].interpolated, 0, sizeof(s->all_frames[i].interpolated));
+ }
+
+ s->current_picture = NULL;
+ *got_frame = 0;
+
+ /* end of stream, so flush delayed pics */
+ if (buf_size == 0)
+ return get_delayed_pic(s, (AVFrame *)data, got_frame);
+
+ for (;;) {
+ /*[DIRAC_STD] Here starts the code from parse_info() defined in 9.6
+ [DIRAC_STD] PARSE_INFO_PREFIX = "BBCD" as defined in ISO/IEC 646
+ BBCD start code search */
+ for (; buf_idx + DATA_UNIT_HEADER_SIZE < buf_size; buf_idx++) {
+ if (buf[buf_idx ] == 'B' && buf[buf_idx+1] == 'B' &&
+ buf[buf_idx+2] == 'C' && buf[buf_idx+3] == 'D')
+ break;
+ }
+ /* BBCD found or end of data */
+ if (buf_idx + DATA_UNIT_HEADER_SIZE >= buf_size)
+ break;
+
+ data_unit_size = AV_RB32(buf+buf_idx+5);
+ if (buf_idx + data_unit_size > buf_size || !data_unit_size) {
+ if(buf_idx + data_unit_size > buf_size)
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Data unit with size %d is larger than input buffer, discarding\n",
+ data_unit_size);
+ buf_idx += 4;
+ continue;
+ }
+ /* [DIRAC_STD] dirac_decode_data_unit makes reference to the while defined in 9.3 inside the function parse_sequence() */
+ if (dirac_decode_data_unit(avctx, buf+buf_idx, data_unit_size))
+ {
+ av_log(s->avctx, AV_LOG_ERROR,"Error in dirac_decode_data_unit\n");
+ return -1;
+ }
+ buf_idx += data_unit_size;
+ }
+
+ if (!s->current_picture)
+ return buf_size;
+
+ if (s->current_picture->avframe->display_picture_number > s->frame_number) {
+ DiracFrame *delayed_frame = remove_frame(s->delay_frames, s->frame_number);
+
+ s->current_picture->avframe->reference |= DELAYED_PIC_REF;
+
+ if (add_frame(s->delay_frames, MAX_DELAY, s->current_picture)) {
+ int min_num = s->delay_frames[0]->avframe->display_picture_number;
+ /* Too many delayed frames, so we display the frame with the lowest pts */
+ av_log(avctx, AV_LOG_ERROR, "Delay frame overflow\n");
+ delayed_frame = s->delay_frames[0];
+
+ for (i = 1; s->delay_frames[i]; i++)
+ if (s->delay_frames[i]->avframe->display_picture_number < min_num)
+ min_num = s->delay_frames[i]->avframe->display_picture_number;
+
+ delayed_frame = remove_frame(s->delay_frames, min_num);
+ add_frame(s->delay_frames, MAX_DELAY, s->current_picture);
+ }
+
+ if (delayed_frame) {
+ delayed_frame->avframe->reference ^= DELAYED_PIC_REF;
+ if((ret=av_frame_ref(data, delayed_frame->avframe)) < 0)
+ return ret;
+ *got_frame = 1;
+ }
+ } else if (s->current_picture->avframe->display_picture_number == s->frame_number) {
+ /* The right frame at the right time :-) */
+ if((ret=av_frame_ref(data, s->current_picture->avframe)) < 0)
+ return ret;
+ *got_frame = 1;
+ }
+
+ if (*got_frame)
+ s->frame_number = picture->display_picture_number + 1;
+
+ return buf_idx;
+}
+
+AVCodec ff_dirac_decoder = {
+ .name = "dirac",
+ .long_name = NULL_IF_CONFIG_SMALL("BBC Dirac VC-2"),
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_DIRAC,
+ .priv_data_size = sizeof(DiracContext),
+ .init = dirac_decode_init,
+ .close = dirac_decode_end,
+ .decode = dirac_decode_frame,
+ .capabilities = CODEC_CAP_DELAY,
+ .flush = dirac_decode_flush,
+};
c->vsse[5] = vsse_intra8_c;
c->nsse[0] = nsse16_c;
c->nsse[1] = nsse8_c;
+#if CONFIG_SNOW_DECODER || CONFIG_SNOW_ENCODER
+ ff_dsputil_init_dwt(c);
+#endif
- c->draw_edges = draw_edges_8_c;
-
switch (avctx->bits_per_raw_sample) {
case 9:
case 10:
src += src_stride;
}
}
- s->dsp.draw_edges(dst, dst_stride,
- w, h,
- 16>>h_shift,
- vpad>>v_shift,
- EDGE_BOTTOM);
+ if ((s->width & 15) || (s->height & (vpad-1))) {
++ s->mpvencdsp.draw_edges(dst, dst_stride,
++ w, h,
++ 16>>h_shift,
++ vpad>>v_shift,
++ EDGE_BOTTOM);
+ }
}
}
}
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
int hshift = desc->log2_chroma_w;
int vshift = desc->log2_chroma_h;
- s->dsp.draw_edges(s->current_picture.f->data[0], s->current_picture.f->linesize[0],
- s->h_edge_pos, s->v_edge_pos,
- EDGE_WIDTH, EDGE_WIDTH,
- EDGE_TOP | EDGE_BOTTOM);
- s->dsp.draw_edges(s->current_picture.f->data[1], s->current_picture.f->linesize[1],
- s->h_edge_pos >> hshift, s->v_edge_pos >> vshift,
- EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift,
- EDGE_TOP | EDGE_BOTTOM);
- s->dsp.draw_edges(s->current_picture.f->data[2], s->current_picture.f->linesize[2],
- s->h_edge_pos >> hshift, s->v_edge_pos >> vshift,
- EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift,
- EDGE_TOP | EDGE_BOTTOM);
- s->mpvencdsp.draw_edges(s->current_picture.f->data[0], s->linesize,
++ s->mpvencdsp.draw_edges(s->current_picture.f->data[0],
++ s->current_picture.f->linesize[0],
+ s->h_edge_pos, s->v_edge_pos,
+ EDGE_WIDTH, EDGE_WIDTH,
+ EDGE_TOP | EDGE_BOTTOM);
- s->mpvencdsp.draw_edges(s->current_picture.f->data[1], s->uvlinesize,
++ s->mpvencdsp.draw_edges(s->current_picture.f->data[1],
++ s->current_picture.f->linesize[1],
+ s->h_edge_pos >> hshift,
+ s->v_edge_pos >> vshift,
+ EDGE_WIDTH >> hshift,
+ EDGE_WIDTH >> vshift,
+ EDGE_TOP | EDGE_BOTTOM);
- s->mpvencdsp.draw_edges(s->current_picture.f->data[2], s->uvlinesize,
++ s->mpvencdsp.draw_edges(s->current_picture.f->data[2],
++ s->current_picture.f->linesize[2],
+ s->h_edge_pos >> hshift,
+ s->v_edge_pos >> vshift,
+ EDGE_WIDTH >> hshift,
+ EDGE_WIDTH >> vshift,
+ EDGE_TOP | EDGE_BOTTOM);
}
emms_c();
#include <assert.h>
#include <stdint.h>
+ #include <string.h>
#include "config.h"
+#include "libavutil/avassert.h"
#include "libavutil/attributes.h"
#include "libavutil/imgutils.h"
#include "avcodec.h"
--- /dev/null
- s->dsp.draw_edges(s->current_picture->data[0],
- s->current_picture->linesize[0], w , h ,
- EDGE_WIDTH , EDGE_WIDTH , EDGE_TOP | EDGE_BOTTOM);
+/*
+ * Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/intmath.h"
+#include "libavutil/log.h"
+#include "libavutil/opt.h"
+#include "avcodec.h"
+#include "dsputil.h"
+#include "snow_dwt.h"
+#include "internal.h"
+#include "snow.h"
+#include "snowdata.h"
+
+#include "rangecoder.h"
+#include "mathops.h"
+#include "h263.h"
+
+
+void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
+ int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){
+ int y, x;
+ IDWTELEM * dst;
+ for(y=0; y<b_h; y++){
+ //FIXME ugly misuse of obmc_stride
+ const uint8_t *obmc1= obmc + y*obmc_stride;
+ const uint8_t *obmc2= obmc1+ (obmc_stride>>1);
+ const uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1);
+ const uint8_t *obmc4= obmc3+ (obmc_stride>>1);
+ dst = slice_buffer_get_line(sb, src_y + y);
+ for(x=0; x<b_w; x++){
+ int v= obmc1[x] * block[3][x + y*src_stride]
+ +obmc2[x] * block[2][x + y*src_stride]
+ +obmc3[x] * block[1][x + y*src_stride]
+ +obmc4[x] * block[0][x + y*src_stride];
+
+ v <<= 8 - LOG2_OBMC_MAX;
+ if(FRAC_BITS != 8){
+ v >>= 8 - FRAC_BITS;
+ }
+ if(add){
+ v += dst[x + src_x];
+ v = (v + (1<<(FRAC_BITS-1))) >> FRAC_BITS;
+ if(v&(~255)) v= ~(v>>31);
+ dst8[x + y*src_stride] = v;
+ }else{
+ dst[x + src_x] -= v;
+ }
+ }
+ }
+}
+
+int ff_snow_get_buffer(SnowContext *s, AVFrame *frame)
+{
+ int ret, i;
+
+ frame->width = s->avctx->width + 2 * EDGE_WIDTH;
+ frame->height = s->avctx->height + 2 * EDGE_WIDTH;
+ if ((ret = ff_get_buffer(s->avctx, frame, AV_GET_BUFFER_FLAG_REF)) < 0)
+ return ret;
+ for (i = 0; frame->data[i]; i++) {
+ int offset = (EDGE_WIDTH >> (i ? s->chroma_v_shift : 0)) *
+ frame->linesize[i] +
+ (EDGE_WIDTH >> (i ? s->chroma_h_shift : 0));
+ frame->data[i] += offset;
+ }
+ frame->width = s->avctx->width;
+ frame->height = s->avctx->height;
+
+ return 0;
+}
+
+void ff_snow_reset_contexts(SnowContext *s){ //FIXME better initial contexts
+ int plane_index, level, orientation;
+
+ for(plane_index=0; plane_index<3; plane_index++){
+ for(level=0; level<MAX_DECOMPOSITIONS; level++){
+ for(orientation=level ? 1:0; orientation<4; orientation++){
+ memset(s->plane[plane_index].band[level][orientation].state, MID_STATE, sizeof(s->plane[plane_index].band[level][orientation].state));
+ }
+ }
+ }
+ memset(s->header_state, MID_STATE, sizeof(s->header_state));
+ memset(s->block_state, MID_STATE, sizeof(s->block_state));
+}
+
+int ff_snow_alloc_blocks(SnowContext *s){
+ int w= FF_CEIL_RSHIFT(s->avctx->width, LOG2_MB_SIZE);
+ int h= FF_CEIL_RSHIFT(s->avctx->height, LOG2_MB_SIZE);
+
+ s->b_width = w;
+ s->b_height= h;
+
+ av_free(s->block);
+ s->block= av_mallocz_array(w * h, sizeof(BlockNode) << (s->block_max_depth*2));
+ if (!s->block)
+ return AVERROR(ENOMEM);
+
+ return 0;
+}
+
+static av_cold void init_qexp(void){
+ int i;
+ double v=128;
+
+ for(i=0; i<QROOT; i++){
+ ff_qexp[i]= lrintf(v);
+ v *= pow(2, 1.0 / QROOT);
+ }
+}
+static void mc_block(Plane *p, uint8_t *dst, const uint8_t *src, int stride, int b_w, int b_h, int dx, int dy){
+ static const uint8_t weight[64]={
+ 8,7,6,5,4,3,2,1,
+ 7,7,0,0,0,0,0,1,
+ 6,0,6,0,0,0,2,0,
+ 5,0,0,5,0,3,0,0,
+ 4,0,0,0,4,0,0,0,
+ 3,0,0,5,0,3,0,0,
+ 2,0,6,0,0,0,2,0,
+ 1,7,0,0,0,0,0,1,
+ };
+
+ static const uint8_t brane[256]={
+ 0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x11,0x12,0x12,0x12,0x12,0x12,0x12,0x12,
+ 0x04,0x05,0xcc,0xcc,0xcc,0xcc,0xcc,0x41,0x15,0x16,0xcc,0xcc,0xcc,0xcc,0xcc,0x52,
+ 0x04,0xcc,0x05,0xcc,0xcc,0xcc,0x41,0xcc,0x15,0xcc,0x16,0xcc,0xcc,0xcc,0x52,0xcc,
+ 0x04,0xcc,0xcc,0x05,0xcc,0x41,0xcc,0xcc,0x15,0xcc,0xcc,0x16,0xcc,0x52,0xcc,0xcc,
+ 0x04,0xcc,0xcc,0xcc,0x41,0xcc,0xcc,0xcc,0x15,0xcc,0xcc,0xcc,0x16,0xcc,0xcc,0xcc,
+ 0x04,0xcc,0xcc,0x41,0xcc,0x05,0xcc,0xcc,0x15,0xcc,0xcc,0x52,0xcc,0x16,0xcc,0xcc,
+ 0x04,0xcc,0x41,0xcc,0xcc,0xcc,0x05,0xcc,0x15,0xcc,0x52,0xcc,0xcc,0xcc,0x16,0xcc,
+ 0x04,0x41,0xcc,0xcc,0xcc,0xcc,0xcc,0x05,0x15,0x52,0xcc,0xcc,0xcc,0xcc,0xcc,0x16,
+ 0x44,0x45,0x45,0x45,0x45,0x45,0x45,0x45,0x55,0x56,0x56,0x56,0x56,0x56,0x56,0x56,
+ 0x48,0x49,0xcc,0xcc,0xcc,0xcc,0xcc,0x85,0x59,0x5A,0xcc,0xcc,0xcc,0xcc,0xcc,0x96,
+ 0x48,0xcc,0x49,0xcc,0xcc,0xcc,0x85,0xcc,0x59,0xcc,0x5A,0xcc,0xcc,0xcc,0x96,0xcc,
+ 0x48,0xcc,0xcc,0x49,0xcc,0x85,0xcc,0xcc,0x59,0xcc,0xcc,0x5A,0xcc,0x96,0xcc,0xcc,
+ 0x48,0xcc,0xcc,0xcc,0x49,0xcc,0xcc,0xcc,0x59,0xcc,0xcc,0xcc,0x96,0xcc,0xcc,0xcc,
+ 0x48,0xcc,0xcc,0x85,0xcc,0x49,0xcc,0xcc,0x59,0xcc,0xcc,0x96,0xcc,0x5A,0xcc,0xcc,
+ 0x48,0xcc,0x85,0xcc,0xcc,0xcc,0x49,0xcc,0x59,0xcc,0x96,0xcc,0xcc,0xcc,0x5A,0xcc,
+ 0x48,0x85,0xcc,0xcc,0xcc,0xcc,0xcc,0x49,0x59,0x96,0xcc,0xcc,0xcc,0xcc,0xcc,0x5A,
+ };
+
+ static const uint8_t needs[16]={
+ 0,1,0,0,
+ 2,4,2,0,
+ 0,1,0,0,
+ 15
+ };
+
+ int x, y, b, r, l;
+ int16_t tmpIt [64*(32+HTAPS_MAX)];
+ uint8_t tmp2t[3][64*(32+HTAPS_MAX)];
+ int16_t *tmpI= tmpIt;
+ uint8_t *tmp2= tmp2t[0];
+ const uint8_t *hpel[11];
+ av_assert2(dx<16 && dy<16);
+ r= brane[dx + 16*dy]&15;
+ l= brane[dx + 16*dy]>>4;
+
+ b= needs[l] | needs[r];
+ if(p && !p->diag_mc)
+ b= 15;
+
+ if(b&5){
+ for(y=0; y < b_h+HTAPS_MAX-1; y++){
+ for(x=0; x < b_w; x++){
+ int a_1=src[x + HTAPS_MAX/2-4];
+ int a0= src[x + HTAPS_MAX/2-3];
+ int a1= src[x + HTAPS_MAX/2-2];
+ int a2= src[x + HTAPS_MAX/2-1];
+ int a3= src[x + HTAPS_MAX/2+0];
+ int a4= src[x + HTAPS_MAX/2+1];
+ int a5= src[x + HTAPS_MAX/2+2];
+ int a6= src[x + HTAPS_MAX/2+3];
+ int am=0;
+ if(!p || p->fast_mc){
+ am= 20*(a2+a3) - 5*(a1+a4) + (a0+a5);
+ tmpI[x]= am;
+ am= (am+16)>>5;
+ }else{
+ am= p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6);
+ tmpI[x]= am;
+ am= (am+32)>>6;
+ }
+
+ if(am&(~255)) am= ~(am>>31);
+ tmp2[x]= am;
+ }
+ tmpI+= 64;
+ tmp2+= 64;
+ src += stride;
+ }
+ src -= stride*y;
+ }
+ src += HTAPS_MAX/2 - 1;
+ tmp2= tmp2t[1];
+
+ if(b&2){
+ for(y=0; y < b_h; y++){
+ for(x=0; x < b_w+1; x++){
+ int a_1=src[x + (HTAPS_MAX/2-4)*stride];
+ int a0= src[x + (HTAPS_MAX/2-3)*stride];
+ int a1= src[x + (HTAPS_MAX/2-2)*stride];
+ int a2= src[x + (HTAPS_MAX/2-1)*stride];
+ int a3= src[x + (HTAPS_MAX/2+0)*stride];
+ int a4= src[x + (HTAPS_MAX/2+1)*stride];
+ int a5= src[x + (HTAPS_MAX/2+2)*stride];
+ int a6= src[x + (HTAPS_MAX/2+3)*stride];
+ int am=0;
+ if(!p || p->fast_mc)
+ am= (20*(a2+a3) - 5*(a1+a4) + (a0+a5) + 16)>>5;
+ else
+ am= (p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6) + 32)>>6;
+
+ if(am&(~255)) am= ~(am>>31);
+ tmp2[x]= am;
+ }
+ src += stride;
+ tmp2+= 64;
+ }
+ src -= stride*y;
+ }
+ src += stride*(HTAPS_MAX/2 - 1);
+ tmp2= tmp2t[2];
+ tmpI= tmpIt;
+ if(b&4){
+ for(y=0; y < b_h; y++){
+ for(x=0; x < b_w; x++){
+ int a_1=tmpI[x + (HTAPS_MAX/2-4)*64];
+ int a0= tmpI[x + (HTAPS_MAX/2-3)*64];
+ int a1= tmpI[x + (HTAPS_MAX/2-2)*64];
+ int a2= tmpI[x + (HTAPS_MAX/2-1)*64];
+ int a3= tmpI[x + (HTAPS_MAX/2+0)*64];
+ int a4= tmpI[x + (HTAPS_MAX/2+1)*64];
+ int a5= tmpI[x + (HTAPS_MAX/2+2)*64];
+ int a6= tmpI[x + (HTAPS_MAX/2+3)*64];
+ int am=0;
+ if(!p || p->fast_mc)
+ am= (20*(a2+a3) - 5*(a1+a4) + (a0+a5) + 512)>>10;
+ else
+ am= (p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6) + 2048)>>12;
+ if(am&(~255)) am= ~(am>>31);
+ tmp2[x]= am;
+ }
+ tmpI+= 64;
+ tmp2+= 64;
+ }
+ }
+
+ hpel[ 0]= src;
+ hpel[ 1]= tmp2t[0] + 64*(HTAPS_MAX/2-1);
+ hpel[ 2]= src + 1;
+
+ hpel[ 4]= tmp2t[1];
+ hpel[ 5]= tmp2t[2];
+ hpel[ 6]= tmp2t[1] + 1;
+
+ hpel[ 8]= src + stride;
+ hpel[ 9]= hpel[1] + 64;
+ hpel[10]= hpel[8] + 1;
+
+#define MC_STRIDE(x) (needs[x] ? 64 : stride)
+
+ if(b==15){
+ int dxy = dx / 8 + dy / 8 * 4;
+ const uint8_t *src1 = hpel[dxy ];
+ const uint8_t *src2 = hpel[dxy + 1];
+ const uint8_t *src3 = hpel[dxy + 4];
+ const uint8_t *src4 = hpel[dxy + 5];
+ int stride1 = MC_STRIDE(dxy);
+ int stride2 = MC_STRIDE(dxy + 1);
+ int stride3 = MC_STRIDE(dxy + 4);
+ int stride4 = MC_STRIDE(dxy + 5);
+ dx&=7;
+ dy&=7;
+ for(y=0; y < b_h; y++){
+ for(x=0; x < b_w; x++){
+ dst[x]= ((8-dx)*(8-dy)*src1[x] + dx*(8-dy)*src2[x]+
+ (8-dx)* dy *src3[x] + dx* dy *src4[x]+32)>>6;
+ }
+ src1+=stride1;
+ src2+=stride2;
+ src3+=stride3;
+ src4+=stride4;
+ dst +=stride;
+ }
+ }else{
+ const uint8_t *src1= hpel[l];
+ const uint8_t *src2= hpel[r];
+ int stride1 = MC_STRIDE(l);
+ int stride2 = MC_STRIDE(r);
+ int a= weight[((dx&7) + (8*(dy&7)))];
+ int b= 8-a;
+ for(y=0; y < b_h; y++){
+ for(x=0; x < b_w; x++){
+ dst[x]= (a*src1[x] + b*src2[x] + 4)>>3;
+ }
+ src1+=stride1;
+ src2+=stride2;
+ dst +=stride;
+ }
+ }
+}
+
+void ff_snow_pred_block(SnowContext *s, uint8_t *dst, uint8_t *tmp, ptrdiff_t stride, int sx, int sy, int b_w, int b_h, BlockNode *block, int plane_index, int w, int h){
+ if(block->type & BLOCK_INTRA){
+ int x, y;
+ const unsigned color = block->color[plane_index];
+ const unsigned color4 = color*0x01010101;
+ if(b_w==32){
+ for(y=0; y < b_h; y++){
+ *(uint32_t*)&dst[0 + y*stride]= color4;
+ *(uint32_t*)&dst[4 + y*stride]= color4;
+ *(uint32_t*)&dst[8 + y*stride]= color4;
+ *(uint32_t*)&dst[12+ y*stride]= color4;
+ *(uint32_t*)&dst[16+ y*stride]= color4;
+ *(uint32_t*)&dst[20+ y*stride]= color4;
+ *(uint32_t*)&dst[24+ y*stride]= color4;
+ *(uint32_t*)&dst[28+ y*stride]= color4;
+ }
+ }else if(b_w==16){
+ for(y=0; y < b_h; y++){
+ *(uint32_t*)&dst[0 + y*stride]= color4;
+ *(uint32_t*)&dst[4 + y*stride]= color4;
+ *(uint32_t*)&dst[8 + y*stride]= color4;
+ *(uint32_t*)&dst[12+ y*stride]= color4;
+ }
+ }else if(b_w==8){
+ for(y=0; y < b_h; y++){
+ *(uint32_t*)&dst[0 + y*stride]= color4;
+ *(uint32_t*)&dst[4 + y*stride]= color4;
+ }
+ }else if(b_w==4){
+ for(y=0; y < b_h; y++){
+ *(uint32_t*)&dst[0 + y*stride]= color4;
+ }
+ }else{
+ for(y=0; y < b_h; y++){
+ for(x=0; x < b_w; x++){
+ dst[x + y*stride]= color;
+ }
+ }
+ }
+ }else{
+ uint8_t *src= s->last_picture[block->ref]->data[plane_index];
+ const int scale= plane_index ? (2*s->mv_scale)>>s->chroma_h_shift : 2*s->mv_scale;
+ int mx= block->mx*scale;
+ int my= block->my*scale;
+ const int dx= mx&15;
+ const int dy= my&15;
+ const int tab_index= 3 - (b_w>>2) + (b_w>>4);
+ sx += (mx>>4) - (HTAPS_MAX/2-1);
+ sy += (my>>4) - (HTAPS_MAX/2-1);
+ src += sx + sy*stride;
+ if( (unsigned)sx >= FFMAX(w - b_w - (HTAPS_MAX-2), 0)
+ || (unsigned)sy >= FFMAX(h - b_h - (HTAPS_MAX-2), 0)){
+ s->vdsp.emulated_edge_mc(tmp + MB_SIZE, src,
+ stride, stride,
+ b_w+HTAPS_MAX-1, b_h+HTAPS_MAX-1,
+ sx, sy, w, h);
+ src= tmp + MB_SIZE;
+ }
+
+ av_assert2(s->chroma_h_shift == s->chroma_v_shift); // only one mv_scale
+
+ av_assert2((tab_index>=0 && tab_index<4) || b_w==32);
+ if( (dx&3) || (dy&3)
+ || !(b_w == b_h || 2*b_w == b_h || b_w == 2*b_h)
+ || (b_w&(b_w-1))
+ || b_w == 1
+ || b_h == 1
+ || !s->plane[plane_index].fast_mc )
+ mc_block(&s->plane[plane_index], dst, src, stride, b_w, b_h, dx, dy);
+ else if(b_w==32){
+ int y;
+ for(y=0; y<b_h; y+=16){
+ s->h264qpel.put_h264_qpel_pixels_tab[0][dy+(dx>>2)](dst + y*stride, src + 3 + (y+3)*stride,stride);
+ s->h264qpel.put_h264_qpel_pixels_tab[0][dy+(dx>>2)](dst + 16 + y*stride, src + 19 + (y+3)*stride,stride);
+ }
+ }else if(b_w==b_h)
+ s->h264qpel.put_h264_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst,src + 3 + 3*stride,stride);
+ else if(b_w==2*b_h){
+ s->h264qpel.put_h264_qpel_pixels_tab[tab_index+1][dy+(dx>>2)](dst ,src + 3 + 3*stride,stride);
+ s->h264qpel.put_h264_qpel_pixels_tab[tab_index+1][dy+(dx>>2)](dst+b_h,src + 3 + b_h + 3*stride,stride);
+ }else{
+ av_assert2(2*b_w==b_h);
+ s->h264qpel.put_h264_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst ,src + 3 + 3*stride ,stride);
+ s->h264qpel.put_h264_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst+b_w*stride,src + 3 + 3*stride+b_w*stride,stride);
+ }
+ }
+}
+
+#define mca(dx,dy,b_w)\
+static void mc_block_hpel ## dx ## dy ## b_w(uint8_t *dst, const uint8_t *src, ptrdiff_t stride, int h){\
+ av_assert2(h==b_w);\
+ mc_block(NULL, dst, src-(HTAPS_MAX/2-1)-(HTAPS_MAX/2-1)*stride, stride, b_w, b_w, dx, dy);\
+}
+
+mca( 0, 0,16)
+mca( 8, 0,16)
+mca( 0, 8,16)
+mca( 8, 8,16)
+mca( 0, 0,8)
+mca( 8, 0,8)
+mca( 0, 8,8)
+mca( 8, 8,8)
+
+av_cold int ff_snow_common_init(AVCodecContext *avctx){
+ SnowContext *s = avctx->priv_data;
+ int width, height;
+ int i, j;
+
+ s->avctx= avctx;
+ s->max_ref_frames=1; //just make sure it's not an invalid value in case of no initial keyframe
+
+ ff_dsputil_init(&s->dsp, avctx);
+ ff_hpeldsp_init(&s->hdsp, avctx->flags);
+ ff_videodsp_init(&s->vdsp, 8);
+ ff_dwt_init(&s->dwt);
+ ff_h264qpel_init(&s->h264qpel, 8);
++ ff_mpegvideoencdsp_init(&s->mpvencdsp, avctx);
+
+#define mcf(dx,dy)\
+ s->qdsp.put_qpel_pixels_tab [0][dy+dx/4]=\
+ s->qdsp.put_no_rnd_qpel_pixels_tab[0][dy+dx/4]=\
+ s->h264qpel.put_h264_qpel_pixels_tab[0][dy+dx/4];\
+ s->qdsp.put_qpel_pixels_tab [1][dy+dx/4]=\
+ s->qdsp.put_no_rnd_qpel_pixels_tab[1][dy+dx/4]=\
+ s->h264qpel.put_h264_qpel_pixels_tab[1][dy+dx/4];
+
+ mcf( 0, 0)
+ mcf( 4, 0)
+ mcf( 8, 0)
+ mcf(12, 0)
+ mcf( 0, 4)
+ mcf( 4, 4)
+ mcf( 8, 4)
+ mcf(12, 4)
+ mcf( 0, 8)
+ mcf( 4, 8)
+ mcf( 8, 8)
+ mcf(12, 8)
+ mcf( 0,12)
+ mcf( 4,12)
+ mcf( 8,12)
+ mcf(12,12)
+
+#define mcfh(dx,dy)\
+ s->hdsp.put_pixels_tab [0][dy/4+dx/8]=\
+ s->hdsp.put_no_rnd_pixels_tab[0][dy/4+dx/8]=\
+ mc_block_hpel ## dx ## dy ## 16;\
+ s->hdsp.put_pixels_tab [1][dy/4+dx/8]=\
+ s->hdsp.put_no_rnd_pixels_tab[1][dy/4+dx/8]=\
+ mc_block_hpel ## dx ## dy ## 8;
+
+ mcfh(0, 0)
+ mcfh(8, 0)
+ mcfh(0, 8)
+ mcfh(8, 8)
+
+ init_qexp();
+
+// dec += FFMAX(s->chroma_h_shift, s->chroma_v_shift);
+
+ width= s->avctx->width;
+ height= s->avctx->height;
+
+ FF_ALLOCZ_ARRAY_OR_GOTO(avctx, s->spatial_idwt_buffer, width, height * sizeof(IDWTELEM), fail);
+ FF_ALLOCZ_ARRAY_OR_GOTO(avctx, s->spatial_dwt_buffer, width, height * sizeof(DWTELEM), fail); //FIXME this does not belong here
+ FF_ALLOCZ_ARRAY_OR_GOTO(avctx, s->temp_dwt_buffer, width, sizeof(DWTELEM), fail);
+ FF_ALLOCZ_ARRAY_OR_GOTO(avctx, s->temp_idwt_buffer, width, sizeof(IDWTELEM), fail);
+ FF_ALLOC_ARRAY_OR_GOTO(avctx, s->run_buffer, ((width + 1) >> 1), ((height + 1) >> 1) * sizeof(*s->run_buffer), fail);
+
+ for(i=0; i<MAX_REF_FRAMES; i++) {
+ for(j=0; j<MAX_REF_FRAMES; j++)
+ ff_scale_mv_ref[i][j] = 256*(i+1)/(j+1);
+ s->last_picture[i] = av_frame_alloc();
+ if (!s->last_picture[i])
+ goto fail;
+ }
+
+ s->mconly_picture = av_frame_alloc();
+ s->current_picture = av_frame_alloc();
+ if (!s->mconly_picture || !s->current_picture)
+ goto fail;
+
+ return 0;
+fail:
+ return AVERROR(ENOMEM);
+}
+
+int ff_snow_common_init_after_header(AVCodecContext *avctx) {
+ SnowContext *s = avctx->priv_data;
+ int plane_index, level, orientation;
+ int ret, emu_buf_size;
+
+ if(!s->scratchbuf) {
+ if ((ret = ff_get_buffer(s->avctx, s->mconly_picture,
+ AV_GET_BUFFER_FLAG_REF)) < 0)
+ return ret;
+ FF_ALLOCZ_ARRAY_OR_GOTO(avctx, s->scratchbuf, FFMAX(s->mconly_picture->linesize[0], 2*avctx->width+256), 7*MB_SIZE, fail);
+ emu_buf_size = FFMAX(s->mconly_picture->linesize[0], 2*avctx->width+256) * (2 * MB_SIZE + HTAPS_MAX - 1);
+ FF_ALLOC_OR_GOTO(avctx, s->emu_edge_buffer, emu_buf_size, fail);
+ }
+
+ if(s->mconly_picture->format != avctx->pix_fmt) {
+ av_log(avctx, AV_LOG_ERROR, "pixel format changed\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ for(plane_index=0; plane_index < s->nb_planes; plane_index++){
+ int w= s->avctx->width;
+ int h= s->avctx->height;
+
+ if(plane_index){
+ w>>= s->chroma_h_shift;
+ h>>= s->chroma_v_shift;
+ }
+ s->plane[plane_index].width = w;
+ s->plane[plane_index].height= h;
+
+ for(level=s->spatial_decomposition_count-1; level>=0; level--){
+ for(orientation=level ? 1 : 0; orientation<4; orientation++){
+ SubBand *b= &s->plane[plane_index].band[level][orientation];
+
+ b->buf= s->spatial_dwt_buffer;
+ b->level= level;
+ b->stride= s->plane[plane_index].width << (s->spatial_decomposition_count - level);
+ b->width = (w + !(orientation&1))>>1;
+ b->height= (h + !(orientation>1))>>1;
+
+ b->stride_line = 1 << (s->spatial_decomposition_count - level);
+ b->buf_x_offset = 0;
+ b->buf_y_offset = 0;
+
+ if(orientation&1){
+ b->buf += (w+1)>>1;
+ b->buf_x_offset = (w+1)>>1;
+ }
+ if(orientation>1){
+ b->buf += b->stride>>1;
+ b->buf_y_offset = b->stride_line >> 1;
+ }
+ b->ibuf= s->spatial_idwt_buffer + (b->buf - s->spatial_dwt_buffer);
+
+ if(level)
+ b->parent= &s->plane[plane_index].band[level-1][orientation];
+ //FIXME avoid this realloc
+ av_freep(&b->x_coeff);
+ b->x_coeff=av_mallocz_array(((b->width+1) * b->height+1), sizeof(x_and_coeff));
+ if (!b->x_coeff)
+ goto fail;
+ }
+ w= (w+1)>>1;
+ h= (h+1)>>1;
+ }
+ }
+
+ return 0;
+fail:
+ return AVERROR(ENOMEM);
+}
+
+#define USE_HALFPEL_PLANE 0
+
+static int halfpel_interpol(SnowContext *s, uint8_t *halfpel[4][4], AVFrame *frame){
+ int p,x,y;
+
+ for(p=0; p < s->nb_planes; p++){
+ int is_chroma= !!p;
+ int w= is_chroma ? s->avctx->width >>s->chroma_h_shift : s->avctx->width;
+ int h= is_chroma ? s->avctx->height>>s->chroma_v_shift : s->avctx->height;
+ int ls= frame->linesize[p];
+ uint8_t *src= frame->data[p];
+
+ halfpel[1][p] = (uint8_t*) av_malloc(ls * (h + 2 * EDGE_WIDTH)) + EDGE_WIDTH * (1 + ls);
+ halfpel[2][p] = (uint8_t*) av_malloc(ls * (h + 2 * EDGE_WIDTH)) + EDGE_WIDTH * (1 + ls);
+ halfpel[3][p] = (uint8_t*) av_malloc(ls * (h + 2 * EDGE_WIDTH)) + EDGE_WIDTH * (1 + ls);
+ if (!halfpel[1][p] || !halfpel[2][p] || !halfpel[3][p])
+ return AVERROR(ENOMEM);
+
+ halfpel[0][p]= src;
+ for(y=0; y<h; y++){
+ for(x=0; x<w; x++){
+ int i= y*ls + x;
+
+ halfpel[1][p][i]= (20*(src[i] + src[i+1]) - 5*(src[i-1] + src[i+2]) + (src[i-2] + src[i+3]) + 16 )>>5;
+ }
+ }
+ for(y=0; y<h; y++){
+ for(x=0; x<w; x++){
+ int i= y*ls + x;
+
+ halfpel[2][p][i]= (20*(src[i] + src[i+ls]) - 5*(src[i-ls] + src[i+2*ls]) + (src[i-2*ls] + src[i+3*ls]) + 16 )>>5;
+ }
+ }
+ src= halfpel[1][p];
+ for(y=0; y<h; y++){
+ for(x=0; x<w; x++){
+ int i= y*ls + x;
+
+ halfpel[3][p][i]= (20*(src[i] + src[i+ls]) - 5*(src[i-ls] + src[i+2*ls]) + (src[i-2*ls] + src[i+3*ls]) + 16 )>>5;
+ }
+ }
+
+//FIXME border!
+ }
+ return 0;
+}
+
+void ff_snow_release_buffer(AVCodecContext *avctx)
+{
+ SnowContext *s = avctx->priv_data;
+ int i;
+
+ if(s->last_picture[s->max_ref_frames-1]->data[0]){
+ av_frame_unref(s->last_picture[s->max_ref_frames-1]);
+ for(i=0; i<9; i++)
+ if(s->halfpel_plane[s->max_ref_frames-1][1+i/3][i%3])
+ av_free(s->halfpel_plane[s->max_ref_frames-1][1+i/3][i%3] - EDGE_WIDTH*(1+s->current_picture->linesize[i%3]));
+ }
+}
+
+int ff_snow_frame_start(SnowContext *s){
+ AVFrame *tmp;
+ int i, ret;
+ int w= s->avctx->width; //FIXME round up to x16 ?
+ int h= s->avctx->height;
+
+ if (s->current_picture->data[0] && !(s->avctx->flags&CODEC_FLAG_EMU_EDGE)) {
- s->dsp.draw_edges(s->current_picture->data[1],
- s->current_picture->linesize[1], w>>s->chroma_h_shift, h>>s->chroma_v_shift,
- EDGE_WIDTH>>s->chroma_h_shift, EDGE_WIDTH>>s->chroma_v_shift, EDGE_TOP | EDGE_BOTTOM);
- s->dsp.draw_edges(s->current_picture->data[2],
- s->current_picture->linesize[2], w>>s->chroma_h_shift, h>>s->chroma_v_shift,
- EDGE_WIDTH>>s->chroma_h_shift, EDGE_WIDTH>>s->chroma_v_shift, EDGE_TOP | EDGE_BOTTOM);
++ s->mpvencdsp.draw_edges(s->current_picture->data[0],
++ s->current_picture->linesize[0], w , h ,
++ EDGE_WIDTH , EDGE_WIDTH , EDGE_TOP | EDGE_BOTTOM);
+ if (s->current_picture->data[2]) {
++ s->mpvencdsp.draw_edges(s->current_picture->data[1],
++ s->current_picture->linesize[1], w>>s->chroma_h_shift, h>>s->chroma_v_shift,
++ EDGE_WIDTH>>s->chroma_h_shift, EDGE_WIDTH>>s->chroma_v_shift, EDGE_TOP | EDGE_BOTTOM);
++ s->mpvencdsp.draw_edges(s->current_picture->data[2],
++ s->current_picture->linesize[2], w>>s->chroma_h_shift, h>>s->chroma_v_shift,
++ EDGE_WIDTH>>s->chroma_h_shift, EDGE_WIDTH>>s->chroma_v_shift, EDGE_TOP | EDGE_BOTTOM);
+ }
+ }
+
+ ff_snow_release_buffer(s->avctx);
+
+ tmp= s->last_picture[s->max_ref_frames-1];
+ for(i=s->max_ref_frames-1; i>0; i--)
+ s->last_picture[i] = s->last_picture[i-1];
+ memmove(s->halfpel_plane+1, s->halfpel_plane, (s->max_ref_frames-1)*sizeof(void*)*4*4);
+ if(USE_HALFPEL_PLANE && s->current_picture->data[0]) {
+ if((ret = halfpel_interpol(s, s->halfpel_plane[0], s->current_picture)) < 0)
+ return ret;
+ }
+ s->last_picture[0] = s->current_picture;
+ s->current_picture = tmp;
+
+ if(s->keyframe){
+ s->ref_frames= 0;
+ }else{
+ int i;
+ for(i=0; i<s->max_ref_frames && s->last_picture[i]->data[0]; i++)
+ if(i && s->last_picture[i-1]->key_frame)
+ break;
+ s->ref_frames= i;
+ if(s->ref_frames==0){
+ av_log(s->avctx,AV_LOG_ERROR, "No reference frames\n");
+ return -1;
+ }
+ }
+ if ((ret = ff_snow_get_buffer(s, s->current_picture)) < 0)
+ return ret;
+
+ s->current_picture->key_frame= s->keyframe;
+
+ return 0;
+}
+
+av_cold void ff_snow_common_end(SnowContext *s)
+{
+ int plane_index, level, orientation, i;
+
+ av_freep(&s->spatial_dwt_buffer);
+ av_freep(&s->temp_dwt_buffer);
+ av_freep(&s->spatial_idwt_buffer);
+ av_freep(&s->temp_idwt_buffer);
+ av_freep(&s->run_buffer);
+
+ s->m.me.temp= NULL;
+ av_freep(&s->m.me.scratchpad);
+ av_freep(&s->m.me.map);
+ av_freep(&s->m.me.score_map);
+ av_freep(&s->m.obmc_scratchpad);
+
+ av_freep(&s->block);
+ av_freep(&s->scratchbuf);
+ av_freep(&s->emu_edge_buffer);
+
+ for(i=0; i<MAX_REF_FRAMES; i++){
+ av_freep(&s->ref_mvs[i]);
+ av_freep(&s->ref_scores[i]);
+ if(s->last_picture[i]->data[0]) {
+ av_assert0(s->last_picture[i]->data[0] != s->current_picture->data[0]);
+ }
+ av_frame_free(&s->last_picture[i]);
+ }
+
+ for(plane_index=0; plane_index < s->nb_planes; plane_index++){
+ for(level=s->spatial_decomposition_count-1; level>=0; level--){
+ for(orientation=level ? 1 : 0; orientation<4; orientation++){
+ SubBand *b= &s->plane[plane_index].band[level][orientation];
+
+ av_freep(&b->x_coeff);
+ }
+ }
+ }
+ av_frame_free(&s->mconly_picture);
+ av_frame_free(&s->current_picture);
+}
--- /dev/null
+/*
+ * Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (C) 2006 Robert Edele <yartrebo@earthlink.net>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_SNOW_H
+#define AVCODEC_SNOW_H
+
+#include "dsputil.h"
+#include "hpeldsp.h"
+#include "qpeldsp.h"
+#include "snow_dwt.h"
+
+#include "rangecoder.h"
+#include "mathops.h"
+#include "mpegvideo.h"
+#include "h264qpel.h"
+
+#define MID_STATE 128
+
+#define MAX_PLANES 4
+#define QSHIFT 5
+#define QROOT (1<<QSHIFT)
+#define LOSSLESS_QLOG -128
+#define FRAC_BITS 4
+#define MAX_REF_FRAMES 8
+
+#define LOG2_OBMC_MAX 8
+#define OBMC_MAX (1<<(LOG2_OBMC_MAX))
+typedef struct BlockNode{
+ int16_t mx;
+ int16_t my;
+ uint8_t ref;
+ uint8_t color[3];
+ uint8_t type;
+//#define TYPE_SPLIT 1
+#define BLOCK_INTRA 1
+#define BLOCK_OPT 2
+//#define TYPE_NOCOLOR 4
+ uint8_t level; //FIXME merge into type?
+}BlockNode;
+
+static const BlockNode null_block= { //FIXME add border maybe
+ .color= {128,128,128},
+ .mx= 0,
+ .my= 0,
+ .ref= 0,
+ .type= 0,
+ .level= 0,
+};
+
+#define LOG2_MB_SIZE 4
+#define MB_SIZE (1<<LOG2_MB_SIZE)
+#define ENCODER_EXTRA_BITS 4
+#define HTAPS_MAX 8
+
+typedef struct x_and_coeff{
+ int16_t x;
+ uint16_t coeff;
+} x_and_coeff;
+
+typedef struct SubBand{
+ int level;
+ int stride;
+ int width;
+ int height;
+ int qlog; ///< log(qscale)/log[2^(1/6)]
+ DWTELEM *buf;
+ IDWTELEM *ibuf;
+ int buf_x_offset;
+ int buf_y_offset;
+ int stride_line; ///< Stride measured in lines, not pixels.
+ x_and_coeff * x_coeff;
+ struct SubBand *parent;
+ uint8_t state[/*7*2*/ 7 + 512][32];
+}SubBand;
+
+typedef struct Plane{
+ int width;
+ int height;
+ SubBand band[MAX_DECOMPOSITIONS][4];
+
+ int htaps;
+ int8_t hcoeff[HTAPS_MAX/2];
+ int diag_mc;
+ int fast_mc;
+
+ int last_htaps;
+ int8_t last_hcoeff[HTAPS_MAX/2];
+ int last_diag_mc;
+}Plane;
+
+typedef struct SnowContext{
+ AVClass *class;
+ AVCodecContext *avctx;
+ RangeCoder c;
+ DSPContext dsp;
+ HpelDSPContext hdsp;
+ QpelDSPContext qdsp;
+ VideoDSPContext vdsp;
+ H264QpelContext h264qpel;
++ MpegvideoEncDSPContext mpvencdsp;
+ SnowDWTContext dwt;
+ AVFrame *new_picture;
+ AVFrame *input_picture; ///< new_picture with the internal linesizes
+ AVFrame *current_picture;
+ AVFrame *last_picture[MAX_REF_FRAMES];
+ uint8_t *halfpel_plane[MAX_REF_FRAMES][4][4];
+ AVFrame *mconly_picture;
+// uint8_t q_context[16];
+ uint8_t header_state[32];
+ uint8_t block_state[128 + 32*128];
+ int keyframe;
+ int always_reset;
+ int version;
+ int spatial_decomposition_type;
+ int last_spatial_decomposition_type;
+ int temporal_decomposition_type;
+ int spatial_decomposition_count;
+ int last_spatial_decomposition_count;
+ int temporal_decomposition_count;
+ int max_ref_frames;
+ int ref_frames;
+ int16_t (*ref_mvs[MAX_REF_FRAMES])[2];
+ uint32_t *ref_scores[MAX_REF_FRAMES];
+ DWTELEM *spatial_dwt_buffer;
+ DWTELEM *temp_dwt_buffer;
+ IDWTELEM *spatial_idwt_buffer;
+ IDWTELEM *temp_idwt_buffer;
+ int *run_buffer;
+ int colorspace_type;
+ int chroma_h_shift;
+ int chroma_v_shift;
+ int spatial_scalability;
+ int qlog;
+ int last_qlog;
+ int lambda;
+ int lambda2;
+ int pass1_rc;
+ int mv_scale;
+ int last_mv_scale;
+ int qbias;
+ int last_qbias;
+#define QBIAS_SHIFT 3
+ int b_width;
+ int b_height;
+ int block_max_depth;
+ int last_block_max_depth;
+ int nb_planes;
+ Plane plane[MAX_PLANES];
+ BlockNode *block;
+#define ME_CACHE_SIZE 1024
+ unsigned me_cache[ME_CACHE_SIZE];
+ unsigned me_cache_generation;
+ slice_buffer sb;
+ int memc_only;
+ int no_bitstream;
+
+ MpegEncContext m; // needed for motion estimation, should not be used for anything else, the idea is to eventually make the motion estimation independent of MpegEncContext, so this will be removed then (FIXME/XXX)
+
+ uint8_t *scratchbuf;
+ uint8_t *emu_edge_buffer;
+}SnowContext;
+
+/* Tables */
+extern const uint8_t * const ff_obmc_tab[4];
+extern uint8_t ff_qexp[QROOT];
+extern int ff_scale_mv_ref[MAX_REF_FRAMES][MAX_REF_FRAMES];
+
+/* C bits used by mmx/sse2/altivec */
+
+static av_always_inline void snow_interleave_line_header(int * i, int width, IDWTELEM * low, IDWTELEM * high){
+ (*i) = (width) - 2;
+
+ if (width & 1){
+ low[(*i)+1] = low[((*i)+1)>>1];
+ (*i)--;
+ }
+}
+
+static av_always_inline void snow_interleave_line_footer(int * i, IDWTELEM * low, IDWTELEM * high){
+ for (; (*i)>=0; (*i)-=2){
+ low[(*i)+1] = high[(*i)>>1];
+ low[*i] = low[(*i)>>1];
+ }
+}
+
+static av_always_inline void snow_horizontal_compose_lift_lead_out(int i, IDWTELEM * dst, IDWTELEM * src, IDWTELEM * ref, int width, int w, int lift_high, int mul, int add, int shift){
+ for(; i<w; i++){
+ dst[i] = src[i] - ((mul * (ref[i] + ref[i + 1]) + add) >> shift);
+ }
+
+ if((width^lift_high)&1){
+ dst[w] = src[w] - ((mul * 2 * ref[w] + add) >> shift);
+ }
+}
+
+static av_always_inline void snow_horizontal_compose_liftS_lead_out(int i, IDWTELEM * dst, IDWTELEM * src, IDWTELEM * ref, int width, int w){
+ for(; i<w; i++){
+ dst[i] = src[i] + ((ref[i] + ref[(i+1)]+W_BO + 4 * src[i]) >> W_BS);
+ }
+
+ if(width&1){
+ dst[w] = src[w] + ((2 * ref[w] + W_BO + 4 * src[w]) >> W_BS);
+ }
+}
+
+/* common code */
+
+int ff_snow_common_init(AVCodecContext *avctx);
+int ff_snow_common_init_after_header(AVCodecContext *avctx);
+void ff_snow_common_end(SnowContext *s);
+void ff_snow_release_buffer(AVCodecContext *avctx);
+void ff_snow_reset_contexts(SnowContext *s);
+int ff_snow_alloc_blocks(SnowContext *s);
+int ff_snow_frame_start(SnowContext *s);
+void ff_snow_pred_block(SnowContext *s, uint8_t *dst, uint8_t *tmp, ptrdiff_t stride,
+ int sx, int sy, int b_w, int b_h, BlockNode *block,
+ int plane_index, int w, int h);
+int ff_snow_get_buffer(SnowContext *s, AVFrame *frame);
+/* common inline functions */
+//XXX doublecheck all of them should stay inlined
+
+static inline void snow_set_blocks(SnowContext *s, int level, int x, int y, int l, int cb, int cr, int mx, int my, int ref, int type){
+ const int w= s->b_width << s->block_max_depth;
+ const int rem_depth= s->block_max_depth - level;
+ const int index= (x + y*w) << rem_depth;
+ const int block_w= 1<<rem_depth;
+ BlockNode block;
+ int i,j;
+
+ block.color[0]= l;
+ block.color[1]= cb;
+ block.color[2]= cr;
+ block.mx= mx;
+ block.my= my;
+ block.ref= ref;
+ block.type= type;
+ block.level= level;
+
+ for(j=0; j<block_w; j++){
+ for(i=0; i<block_w; i++){
+ s->block[index + i + j*w]= block;
+ }
+ }
+}
+
+static inline void pred_mv(SnowContext *s, int *mx, int *my, int ref,
+ const BlockNode *left, const BlockNode *top, const BlockNode *tr){
+ if(s->ref_frames == 1){
+ *mx = mid_pred(left->mx, top->mx, tr->mx);
+ *my = mid_pred(left->my, top->my, tr->my);
+ }else{
+ const int *scale = ff_scale_mv_ref[ref];
+ *mx = mid_pred((left->mx * scale[left->ref] + 128) >>8,
+ (top ->mx * scale[top ->ref] + 128) >>8,
+ (tr ->mx * scale[tr ->ref] + 128) >>8);
+ *my = mid_pred((left->my * scale[left->ref] + 128) >>8,
+ (top ->my * scale[top ->ref] + 128) >>8,
+ (tr ->my * scale[tr ->ref] + 128) >>8);
+ }
+}
+
+static av_always_inline int same_block(BlockNode *a, BlockNode *b){
+ if((a->type&BLOCK_INTRA) && (b->type&BLOCK_INTRA)){
+ return !((a->color[0] - b->color[0]) | (a->color[1] - b->color[1]) | (a->color[2] - b->color[2]));
+ }else{
+ return !((a->mx - b->mx) | (a->my - b->my) | (a->ref - b->ref) | ((a->type ^ b->type)&BLOCK_INTRA));
+ }
+}
+
+//FIXME name cleanup (b_w, block_w, b_width stuff)
+//XXX should we really inline it?
+static av_always_inline void add_yblock(SnowContext *s, int sliced, slice_buffer *sb, IDWTELEM *dst, uint8_t *dst8, const uint8_t *obmc, int src_x, int src_y, int b_w, int b_h, int w, int h, int dst_stride, int src_stride, int obmc_stride, int b_x, int b_y, int add, int offset_dst, int plane_index){
+ const int b_width = s->b_width << s->block_max_depth;
+ const int b_height= s->b_height << s->block_max_depth;
+ const int b_stride= b_width;
+ BlockNode *lt= &s->block[b_x + b_y*b_stride];
+ BlockNode *rt= lt+1;
+ BlockNode *lb= lt+b_stride;
+ BlockNode *rb= lb+1;
+ uint8_t *block[4];
+ int tmp_step= src_stride >= 7*MB_SIZE ? MB_SIZE : MB_SIZE*src_stride;
+ uint8_t *tmp = s->scratchbuf;
+ uint8_t *ptmp;
+ int x,y;
+
+ if(b_x<0){
+ lt= rt;
+ lb= rb;
+ }else if(b_x + 1 >= b_width){
+ rt= lt;
+ rb= lb;
+ }
+ if(b_y<0){
+ lt= lb;
+ rt= rb;
+ }else if(b_y + 1 >= b_height){
+ lb= lt;
+ rb= rt;
+ }
+
+ if(src_x<0){ //FIXME merge with prev & always round internal width up to *16
+ obmc -= src_x;
+ b_w += src_x;
+ if(!sliced && !offset_dst)
+ dst -= src_x;
+ src_x=0;
+ }
+ if(src_x + b_w > w){
+ b_w = w - src_x;
+ }
+ if(src_y<0){
+ obmc -= src_y*obmc_stride;
+ b_h += src_y;
+ if(!sliced && !offset_dst)
+ dst -= src_y*dst_stride;
+ src_y=0;
+ }
+ if(src_y + b_h> h){
+ b_h = h - src_y;
+ }
+
+ if(b_w<=0 || b_h<=0) return;
+
+ av_assert2(src_stride > 2*MB_SIZE + 5);
+
+ if(!sliced && offset_dst)
+ dst += src_x + src_y*dst_stride;
+ dst8+= src_x + src_y*src_stride;
+// src += src_x + src_y*src_stride;
+
+ ptmp= tmp + 3*tmp_step;
+ block[0]= ptmp;
+ ptmp+=tmp_step;
+ ff_snow_pred_block(s, block[0], tmp, src_stride, src_x, src_y, b_w, b_h, lt, plane_index, w, h);
+
+ if(same_block(lt, rt)){
+ block[1]= block[0];
+ }else{
+ block[1]= ptmp;
+ ptmp+=tmp_step;
+ ff_snow_pred_block(s, block[1], tmp, src_stride, src_x, src_y, b_w, b_h, rt, plane_index, w, h);
+ }
+
+ if(same_block(lt, lb)){
+ block[2]= block[0];
+ }else if(same_block(rt, lb)){
+ block[2]= block[1];
+ }else{
+ block[2]= ptmp;
+ ptmp+=tmp_step;
+ ff_snow_pred_block(s, block[2], tmp, src_stride, src_x, src_y, b_w, b_h, lb, plane_index, w, h);
+ }
+
+ if(same_block(lt, rb) ){
+ block[3]= block[0];
+ }else if(same_block(rt, rb)){
+ block[3]= block[1];
+ }else if(same_block(lb, rb)){
+ block[3]= block[2];
+ }else{
+ block[3]= ptmp;
+ ff_snow_pred_block(s, block[3], tmp, src_stride, src_x, src_y, b_w, b_h, rb, plane_index, w, h);
+ }
+ if(sliced){
+ s->dwt.inner_add_yblock(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
+ }else{
+ for(y=0; y<b_h; y++){
+ //FIXME ugly misuse of obmc_stride
+ const uint8_t *obmc1= obmc + y*obmc_stride;
+ const uint8_t *obmc2= obmc1+ (obmc_stride>>1);
+ const uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1);
+ const uint8_t *obmc4= obmc3+ (obmc_stride>>1);
+ for(x=0; x<b_w; x++){
+ int v= obmc1[x] * block[3][x + y*src_stride]
+ +obmc2[x] * block[2][x + y*src_stride]
+ +obmc3[x] * block[1][x + y*src_stride]
+ +obmc4[x] * block[0][x + y*src_stride];
+
+ v <<= 8 - LOG2_OBMC_MAX;
+ if(FRAC_BITS != 8){
+ v >>= 8 - FRAC_BITS;
+ }
+ if(add){
+ v += dst[x + y*dst_stride];
+ v = (v + (1<<(FRAC_BITS-1))) >> FRAC_BITS;
+ if(v&(~255)) v= ~(v>>31);
+ dst8[x + y*src_stride] = v;
+ }else{
+ dst[x + y*dst_stride] -= v;
+ }
+ }
+ }
+ }
+}
+
+static av_always_inline void predict_slice(SnowContext *s, IDWTELEM *buf, int plane_index, int add, int mb_y){
+ Plane *p= &s->plane[plane_index];
+ const int mb_w= s->b_width << s->block_max_depth;
+ const int mb_h= s->b_height << s->block_max_depth;
+ int x, y, mb_x;
+ int block_size = MB_SIZE >> s->block_max_depth;
+ int block_w = plane_index ? block_size>>s->chroma_h_shift : block_size;
+ int block_h = plane_index ? block_size>>s->chroma_v_shift : block_size;
+ const uint8_t *obmc = plane_index ? ff_obmc_tab[s->block_max_depth+s->chroma_h_shift] : ff_obmc_tab[s->block_max_depth];
+ const int obmc_stride= plane_index ? (2*block_size)>>s->chroma_h_shift : 2*block_size;
+ int ref_stride= s->current_picture->linesize[plane_index];
+ uint8_t *dst8= s->current_picture->data[plane_index];
+ int w= p->width;
+ int h= p->height;
+ av_assert2(s->chroma_h_shift == s->chroma_v_shift); // obmc params assume squares
+ if(s->keyframe || (s->avctx->debug&512)){
+ if(mb_y==mb_h)
+ return;
+
+ if(add){
+ for(y=block_h*mb_y; y<FFMIN(h,block_h*(mb_y+1)); y++){
+ for(x=0; x<w; x++){
+ int v= buf[x + y*w] + (128<<FRAC_BITS) + (1<<(FRAC_BITS-1));
+ v >>= FRAC_BITS;
+ if(v&(~255)) v= ~(v>>31);
+ dst8[x + y*ref_stride]= v;
+ }
+ }
+ }else{
+ for(y=block_h*mb_y; y<FFMIN(h,block_h*(mb_y+1)); y++){
+ for(x=0; x<w; x++){
+ buf[x + y*w]-= 128<<FRAC_BITS;
+ }
+ }
+ }
+
+ return;
+ }
+
+ for(mb_x=0; mb_x<=mb_w; mb_x++){
+ add_yblock(s, 0, NULL, buf, dst8, obmc,
+ block_w*mb_x - block_w/2,
+ block_h*mb_y - block_h/2,
+ block_w, block_h,
+ w, h,
+ w, ref_stride, obmc_stride,
+ mb_x - 1, mb_y - 1,
+ add, 1, plane_index);
+ }
+}
+
+static av_always_inline void predict_plane(SnowContext *s, IDWTELEM *buf, int plane_index, int add){
+ const int mb_h= s->b_height << s->block_max_depth;
+ int mb_y;
+ for(mb_y=0; mb_y<=mb_h; mb_y++)
+ predict_slice(s, buf, plane_index, add, mb_y);
+}
+
+static inline void set_blocks(SnowContext *s, int level, int x, int y, int l, int cb, int cr, int mx, int my, int ref, int type){
+ const int w= s->b_width << s->block_max_depth;
+ const int rem_depth= s->block_max_depth - level;
+ const int index= (x + y*w) << rem_depth;
+ const int block_w= 1<<rem_depth;
+ const int block_h= 1<<rem_depth; //FIXME "w!=h"
+ BlockNode block;
+ int i,j;
+
+ block.color[0]= l;
+ block.color[1]= cb;
+ block.color[2]= cr;
+ block.mx= mx;
+ block.my= my;
+ block.ref= ref;
+ block.type= type;
+ block.level= level;
+
+ for(j=0; j<block_h; j++){
+ for(i=0; i<block_w; i++){
+ s->block[index + i + j*w]= block;
+ }
+ }
+}
+
+static inline void init_ref(MotionEstContext *c, uint8_t *src[3], uint8_t *ref[3], uint8_t *ref2[3], int x, int y, int ref_index){
+ SnowContext *s = c->avctx->priv_data;
+ const int offset[3]= {
+ y*c-> stride + x,
+ ((y*c->uvstride + x)>>s->chroma_h_shift),
+ ((y*c->uvstride + x)>>s->chroma_h_shift),
+ };
+ int i;
+ for(i=0; i<3; i++){
+ c->src[0][i]= src [i];
+ c->ref[0][i]= ref [i] + offset[i];
+ }
+ av_assert2(!ref_index);
+}
+
+
+/* bitstream functions */
+
+extern const int8_t ff_quant3bA[256];
+
+#define QEXPSHIFT (7-FRAC_BITS+8) //FIXME try to change this to 0
+
+static inline void put_symbol(RangeCoder *c, uint8_t *state, int v, int is_signed){
+ int i;
+
+ if(v){
+ const int a= FFABS(v);
+ const int e= av_log2(a);
+ const int el= FFMIN(e, 10);
+ put_rac(c, state+0, 0);
+
+ for(i=0; i<el; i++){
+ put_rac(c, state+1+i, 1); //1..10
+ }
+ for(; i<e; i++){
+ put_rac(c, state+1+9, 1); //1..10
+ }
+ put_rac(c, state+1+FFMIN(i,9), 0);
+
+ for(i=e-1; i>=el; i--){
+ put_rac(c, state+22+9, (a>>i)&1); //22..31
+ }
+ for(; i>=0; i--){
+ put_rac(c, state+22+i, (a>>i)&1); //22..31
+ }
+
+ if(is_signed)
+ put_rac(c, state+11 + el, v < 0); //11..21
+ }else{
+ put_rac(c, state+0, 1);
+ }
+}
+
+static inline int get_symbol(RangeCoder *c, uint8_t *state, int is_signed){
+ if(get_rac(c, state+0))
+ return 0;
+ else{
+ int i, e, a;
+ e= 0;
+ while(get_rac(c, state+1 + FFMIN(e,9))){ //1..10
+ e++;
+ }
+
+ a= 1;
+ for(i=e-1; i>=0; i--){
+ a += a + get_rac(c, state+22 + FFMIN(i,9)); //22..31
+ }
+
+ e= -(is_signed && get_rac(c, state+11 + FFMIN(e,10))); //11..21
+ return (a^e)-e;
+ }
+}
+
+static inline void put_symbol2(RangeCoder *c, uint8_t *state, int v, int log2){
+ int i;
+ int r= log2>=0 ? 1<<log2 : 1;
+
+ av_assert2(v>=0);
+ av_assert2(log2>=-4);
+
+ while(v >= r){
+ put_rac(c, state+4+log2, 1);
+ v -= r;
+ log2++;
+ if(log2>0) r+=r;
+ }
+ put_rac(c, state+4+log2, 0);
+
+ for(i=log2-1; i>=0; i--){
+ put_rac(c, state+31-i, (v>>i)&1);
+ }
+}
+
+static inline int get_symbol2(RangeCoder *c, uint8_t *state, int log2){
+ int i;
+ int r= log2>=0 ? 1<<log2 : 1;
+ int v=0;
+
+ av_assert2(log2>=-4);
+
+ while(log2<28 && get_rac(c, state+4+log2)){
+ v+= r;
+ log2++;
+ if(log2>0) r+=r;
+ }
+
+ for(i=log2-1; i>=0; i--){
+ v+= get_rac(c, state+31-i)<<i;
+ }
+
+ return v;
+}
+
+static inline void unpack_coeffs(SnowContext *s, SubBand *b, SubBand * parent, int orientation){
+ const int w= b->width;
+ const int h= b->height;
+ int x,y;
+
+ int run, runs;
+ x_and_coeff *xc= b->x_coeff;
+ x_and_coeff *prev_xc= NULL;
+ x_and_coeff *prev2_xc= xc;
+ x_and_coeff *parent_xc= parent ? parent->x_coeff : NULL;
+ x_and_coeff *prev_parent_xc= parent_xc;
+
+ runs= get_symbol2(&s->c, b->state[30], 0);
+ if(runs-- > 0) run= get_symbol2(&s->c, b->state[1], 3);
+ else run= INT_MAX;
+
+ for(y=0; y<h; y++){
+ int v=0;
+ int lt=0, t=0, rt=0;
+
+ if(y && prev_xc->x == 0){
+ rt= prev_xc->coeff;
+ }
+ for(x=0; x<w; x++){
+ int p=0;
+ const int l= v;
+
+ lt= t; t= rt;
+
+ if(y){
+ if(prev_xc->x <= x)
+ prev_xc++;
+ if(prev_xc->x == x + 1)
+ rt= prev_xc->coeff;
+ else
+ rt=0;
+ }
+ if(parent_xc){
+ if(x>>1 > parent_xc->x){
+ parent_xc++;
+ }
+ if(x>>1 == parent_xc->x){
+ p= parent_xc->coeff;
+ }
+ }
+ if(/*ll|*/l|lt|t|rt|p){
+ int context= av_log2(/*FFABS(ll) + */3*(l>>1) + (lt>>1) + (t&~1) + (rt>>1) + (p>>1));
+
+ v=get_rac(&s->c, &b->state[0][context]);
+ if(v){
+ v= 2*(get_symbol2(&s->c, b->state[context + 2], context-4) + 1);
+ v+=get_rac(&s->c, &b->state[0][16 + 1 + 3 + ff_quant3bA[l&0xFF] + 3*ff_quant3bA[t&0xFF]]);
+
+ xc->x=x;
+ (xc++)->coeff= v;
+ }
+ }else{
+ if(!run){
+ if(runs-- > 0) run= get_symbol2(&s->c, b->state[1], 3);
+ else run= INT_MAX;
+ v= 2*(get_symbol2(&s->c, b->state[0 + 2], 0-4) + 1);
+ v+=get_rac(&s->c, &b->state[0][16 + 1 + 3]);
+
+ xc->x=x;
+ (xc++)->coeff= v;
+ }else{
+ int max_run;
+ run--;
+ v=0;
+ av_assert2(run >= 0);
+ if(y) max_run= FFMIN(run, prev_xc->x - x - 2);
+ else max_run= FFMIN(run, w-x-1);
+ if(parent_xc)
+ max_run= FFMIN(max_run, 2*parent_xc->x - x - 1);
+ av_assert2(max_run >= 0 && max_run <= run);
+
+ x+= max_run;
+ run-= max_run;
+ }
+ }
+ }
+ (xc++)->x= w+1; //end marker
+ prev_xc= prev2_xc;
+ prev2_xc= xc;
+
+ if(parent_xc){
+ if(y&1){
+ while(parent_xc->x != parent->width+1)
+ parent_xc++;
+ parent_xc++;
+ prev_parent_xc= parent_xc;
+ }else{
+ parent_xc= prev_parent_xc;
+ }
+ }
+ }
+
+ (xc++)->x= w+1; //end marker
+}
+
+#endif /* AVCODEC_SNOW_H */
--- /dev/null
- s->dsp.draw_edges(s->input_picture->data[i], s->input_picture->linesize[i],
- width >> hshift, height >> vshift,
- EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift,
- EDGE_TOP | EDGE_BOTTOM);
+/*
+ * Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/intmath.h"
+#include "libavutil/log.h"
+#include "libavutil/opt.h"
+#include "avcodec.h"
+#include "dsputil.h"
+#include "internal.h"
+#include "snow_dwt.h"
+#include "snow.h"
+
+#include "rangecoder.h"
+#include "mathops.h"
+
+#include "mpegvideo.h"
+#include "h263.h"
+
+static av_cold int encode_init(AVCodecContext *avctx)
+{
+ SnowContext *s = avctx->priv_data;
+ int plane_index, ret;
+ int i;
+
+ if(avctx->prediction_method == DWT_97
+ && (avctx->flags & CODEC_FLAG_QSCALE)
+ && avctx->global_quality == 0){
+ av_log(avctx, AV_LOG_ERROR, "The 9/7 wavelet is incompatible with lossless mode.\n");
+ return -1;
+ }
+
+ s->spatial_decomposition_type= avctx->prediction_method; //FIXME add decorrelator type r transform_type
+
+ s->mv_scale = (avctx->flags & CODEC_FLAG_QPEL) ? 2 : 4;
+ s->block_max_depth= (avctx->flags & CODEC_FLAG_4MV ) ? 1 : 0;
+
+ for(plane_index=0; plane_index<3; plane_index++){
+ s->plane[plane_index].diag_mc= 1;
+ s->plane[plane_index].htaps= 6;
+ s->plane[plane_index].hcoeff[0]= 40;
+ s->plane[plane_index].hcoeff[1]= -10;
+ s->plane[plane_index].hcoeff[2]= 2;
+ s->plane[plane_index].fast_mc= 1;
+ }
+
+ if ((ret = ff_snow_common_init(avctx)) < 0) {
+ ff_snow_common_end(avctx->priv_data);
+ return ret;
+ }
+ ff_snow_alloc_blocks(s);
+
+ s->version=0;
+
+ s->m.avctx = avctx;
+ s->m.flags = avctx->flags;
+ s->m.bit_rate= avctx->bit_rate;
+
+ s->m.me.temp =
+ s->m.me.scratchpad= av_mallocz_array((avctx->width+64), 2*16*2*sizeof(uint8_t));
+ s->m.me.map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t));
+ s->m.me.score_map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t));
+ s->m.obmc_scratchpad= av_mallocz(MB_SIZE*MB_SIZE*12*sizeof(uint32_t));
+ if (!s->m.me.scratchpad || !s->m.me.map || !s->m.me.score_map || !s->m.obmc_scratchpad)
+ return AVERROR(ENOMEM);
+
+ ff_h263_encode_init(&s->m); //mv_penalty
+
+ s->max_ref_frames = FFMAX(FFMIN(avctx->refs, MAX_REF_FRAMES), 1);
+
+ if(avctx->flags&CODEC_FLAG_PASS1){
+ if(!avctx->stats_out)
+ avctx->stats_out = av_mallocz(256);
+
+ if (!avctx->stats_out)
+ return AVERROR(ENOMEM);
+ }
+ if((avctx->flags&CODEC_FLAG_PASS2) || !(avctx->flags&CODEC_FLAG_QSCALE)){
+ if(ff_rate_control_init(&s->m) < 0)
+ return -1;
+ }
+ s->pass1_rc= !(avctx->flags & (CODEC_FLAG_QSCALE|CODEC_FLAG_PASS2));
+
+ switch(avctx->pix_fmt){
+ case AV_PIX_FMT_YUV444P:
+// case AV_PIX_FMT_YUV422P:
+ case AV_PIX_FMT_YUV420P:
+// case AV_PIX_FMT_YUV411P:
+ case AV_PIX_FMT_YUV410P:
+ s->nb_planes = 3;
+ s->colorspace_type= 0;
+ break;
+ case AV_PIX_FMT_GRAY8:
+ s->nb_planes = 1;
+ s->colorspace_type = 1;
+ break;
+/* case AV_PIX_FMT_RGB32:
+ s->colorspace= 1;
+ break;*/
+ default:
+ av_log(avctx, AV_LOG_ERROR, "pixel format not supported\n");
+ return -1;
+ }
+ avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_h_shift, &s->chroma_v_shift);
+
+ ff_set_cmp(&s->dsp, s->dsp.me_cmp, s->avctx->me_cmp);
+ ff_set_cmp(&s->dsp, s->dsp.me_sub_cmp, s->avctx->me_sub_cmp);
+
+ s->input_picture = av_frame_alloc();
+ if (!s->input_picture)
+ return AVERROR(ENOMEM);
+
+ if ((ret = ff_snow_get_buffer(s, s->input_picture)) < 0)
+ return ret;
+
+ if(s->avctx->me_method == ME_ITER){
+ int size= s->b_width * s->b_height << 2*s->block_max_depth;
+ for(i=0; i<s->max_ref_frames; i++){
+ s->ref_mvs[i]= av_mallocz_array(size, sizeof(int16_t[2]));
+ s->ref_scores[i]= av_mallocz_array(size, sizeof(uint32_t));
+ if (!s->ref_mvs[i] || !s->ref_scores[i])
+ return AVERROR(ENOMEM);
+ }
+ }
+
+ return 0;
+}
+
+//near copy & paste from dsputil, FIXME
+static int pix_sum(uint8_t * pix, int line_size, int w, int h)
+{
+ int s, i, j;
+
+ s = 0;
+ for (i = 0; i < h; i++) {
+ for (j = 0; j < w; j++) {
+ s += pix[0];
+ pix ++;
+ }
+ pix += line_size - w;
+ }
+ return s;
+}
+
+//near copy & paste from dsputil, FIXME
+static int pix_norm1(uint8_t * pix, int line_size, int w)
+{
+ int s, i, j;
+ uint32_t *sq = ff_square_tab + 256;
+
+ s = 0;
+ for (i = 0; i < w; i++) {
+ for (j = 0; j < w; j ++) {
+ s += sq[pix[0]];
+ pix ++;
+ }
+ pix += line_size - w;
+ }
+ return s;
+}
+
+static inline int get_penalty_factor(int lambda, int lambda2, int type){
+ switch(type&0xFF){
+ default:
+ case FF_CMP_SAD:
+ return lambda>>FF_LAMBDA_SHIFT;
+ case FF_CMP_DCT:
+ return (3*lambda)>>(FF_LAMBDA_SHIFT+1);
+ case FF_CMP_W53:
+ return (4*lambda)>>(FF_LAMBDA_SHIFT);
+ case FF_CMP_W97:
+ return (2*lambda)>>(FF_LAMBDA_SHIFT);
+ case FF_CMP_SATD:
+ case FF_CMP_DCT264:
+ return (2*lambda)>>FF_LAMBDA_SHIFT;
+ case FF_CMP_RD:
+ case FF_CMP_PSNR:
+ case FF_CMP_SSE:
+ case FF_CMP_NSSE:
+ return lambda2>>FF_LAMBDA_SHIFT;
+ case FF_CMP_BIT:
+ return 1;
+ }
+}
+
+//FIXME copy&paste
+#define P_LEFT P[1]
+#define P_TOP P[2]
+#define P_TOPRIGHT P[3]
+#define P_MEDIAN P[4]
+#define P_MV1 P[9]
+#define FLAG_QPEL 1 //must be 1
+
+static int encode_q_branch(SnowContext *s, int level, int x, int y){
+ uint8_t p_buffer[1024];
+ uint8_t i_buffer[1024];
+ uint8_t p_state[sizeof(s->block_state)];
+ uint8_t i_state[sizeof(s->block_state)];
+ RangeCoder pc, ic;
+ uint8_t *pbbak= s->c.bytestream;
+ uint8_t *pbbak_start= s->c.bytestream_start;
+ int score, score2, iscore, i_len, p_len, block_s, sum, base_bits;
+ const int w= s->b_width << s->block_max_depth;
+ const int h= s->b_height << s->block_max_depth;
+ const int rem_depth= s->block_max_depth - level;
+ const int index= (x + y*w) << rem_depth;
+ const int block_w= 1<<(LOG2_MB_SIZE - level);
+ int trx= (x+1)<<rem_depth;
+ int try= (y+1)<<rem_depth;
+ const BlockNode *left = x ? &s->block[index-1] : &null_block;
+ const BlockNode *top = y ? &s->block[index-w] : &null_block;
+ const BlockNode *right = trx<w ? &s->block[index+1] : &null_block;
+ const BlockNode *bottom= try<h ? &s->block[index+w] : &null_block;
+ const BlockNode *tl = y && x ? &s->block[index-w-1] : left;
+ const BlockNode *tr = y && trx<w && ((x&1)==0 || level==0) ? &s->block[index-w+(1<<rem_depth)] : tl; //FIXME use lt
+ int pl = left->color[0];
+ int pcb= left->color[1];
+ int pcr= left->color[2];
+ int pmx, pmy;
+ int mx=0, my=0;
+ int l,cr,cb;
+ const int stride= s->current_picture->linesize[0];
+ const int uvstride= s->current_picture->linesize[1];
+ uint8_t *current_data[3]= { s->input_picture->data[0] + (x + y* stride)*block_w,
+ s->input_picture->data[1] + ((x*block_w)>>s->chroma_h_shift) + ((y*uvstride*block_w)>>s->chroma_v_shift),
+ s->input_picture->data[2] + ((x*block_w)>>s->chroma_h_shift) + ((y*uvstride*block_w)>>s->chroma_v_shift)};
+ int P[10][2];
+ int16_t last_mv[3][2];
+ int qpel= !!(s->avctx->flags & CODEC_FLAG_QPEL); //unused
+ const int shift= 1+qpel;
+ MotionEstContext *c= &s->m.me;
+ int ref_context= av_log2(2*left->ref) + av_log2(2*top->ref);
+ int mx_context= av_log2(2*FFABS(left->mx - top->mx));
+ int my_context= av_log2(2*FFABS(left->my - top->my));
+ int s_context= 2*left->level + 2*top->level + tl->level + tr->level;
+ int ref, best_ref, ref_score, ref_mx, ref_my;
+
+ av_assert0(sizeof(s->block_state) >= 256);
+ if(s->keyframe){
+ set_blocks(s, level, x, y, pl, pcb, pcr, 0, 0, 0, BLOCK_INTRA);
+ return 0;
+ }
+
+// clip predictors / edge ?
+
+ P_LEFT[0]= left->mx;
+ P_LEFT[1]= left->my;
+ P_TOP [0]= top->mx;
+ P_TOP [1]= top->my;
+ P_TOPRIGHT[0]= tr->mx;
+ P_TOPRIGHT[1]= tr->my;
+
+ last_mv[0][0]= s->block[index].mx;
+ last_mv[0][1]= s->block[index].my;
+ last_mv[1][0]= right->mx;
+ last_mv[1][1]= right->my;
+ last_mv[2][0]= bottom->mx;
+ last_mv[2][1]= bottom->my;
+
+ s->m.mb_stride=2;
+ s->m.mb_x=
+ s->m.mb_y= 0;
+ c->skip= 0;
+
+ av_assert1(c-> stride == stride);
+ av_assert1(c->uvstride == uvstride);
+
+ c->penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_cmp);
+ c->sub_penalty_factor= get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_sub_cmp);
+ c->mb_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->mb_cmp);
+ c->current_mv_penalty= c->mv_penalty[s->m.f_code=1] + MAX_MV;
+
+ c->xmin = - x*block_w - 16+3;
+ c->ymin = - y*block_w - 16+3;
+ c->xmax = - (x+1)*block_w + (w<<(LOG2_MB_SIZE - s->block_max_depth)) + 16-3;
+ c->ymax = - (y+1)*block_w + (h<<(LOG2_MB_SIZE - s->block_max_depth)) + 16-3;
+
+ if(P_LEFT[0] > (c->xmax<<shift)) P_LEFT[0] = (c->xmax<<shift);
+ if(P_LEFT[1] > (c->ymax<<shift)) P_LEFT[1] = (c->ymax<<shift);
+ if(P_TOP[0] > (c->xmax<<shift)) P_TOP[0] = (c->xmax<<shift);
+ if(P_TOP[1] > (c->ymax<<shift)) P_TOP[1] = (c->ymax<<shift);
+ if(P_TOPRIGHT[0] < (c->xmin<<shift)) P_TOPRIGHT[0]= (c->xmin<<shift);
+ if(P_TOPRIGHT[0] > (c->xmax<<shift)) P_TOPRIGHT[0]= (c->xmax<<shift); //due to pmx no clip
+ if(P_TOPRIGHT[1] > (c->ymax<<shift)) P_TOPRIGHT[1]= (c->ymax<<shift);
+
+ P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
+ P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
+
+ if (!y) {
+ c->pred_x= P_LEFT[0];
+ c->pred_y= P_LEFT[1];
+ } else {
+ c->pred_x = P_MEDIAN[0];
+ c->pred_y = P_MEDIAN[1];
+ }
+
+ score= INT_MAX;
+ best_ref= 0;
+ for(ref=0; ref<s->ref_frames; ref++){
+ init_ref(c, current_data, s->last_picture[ref]->data, NULL, block_w*x, block_w*y, 0);
+
+ ref_score= ff_epzs_motion_search(&s->m, &ref_mx, &ref_my, P, 0, /*ref_index*/ 0, last_mv,
+ (1<<16)>>shift, level-LOG2_MB_SIZE+4, block_w);
+
+ av_assert2(ref_mx >= c->xmin);
+ av_assert2(ref_mx <= c->xmax);
+ av_assert2(ref_my >= c->ymin);
+ av_assert2(ref_my <= c->ymax);
+
+ ref_score= c->sub_motion_search(&s->m, &ref_mx, &ref_my, ref_score, 0, 0, level-LOG2_MB_SIZE+4, block_w);
+ ref_score= ff_get_mb_score(&s->m, ref_mx, ref_my, 0, 0, level-LOG2_MB_SIZE+4, block_w, 0);
+ ref_score+= 2*av_log2(2*ref)*c->penalty_factor;
+ if(s->ref_mvs[ref]){
+ s->ref_mvs[ref][index][0]= ref_mx;
+ s->ref_mvs[ref][index][1]= ref_my;
+ s->ref_scores[ref][index]= ref_score;
+ }
+ if(score > ref_score){
+ score= ref_score;
+ best_ref= ref;
+ mx= ref_mx;
+ my= ref_my;
+ }
+ }
+ //FIXME if mb_cmp != SSE then intra cannot be compared currently and mb_penalty vs. lambda2
+
+ // subpel search
+ base_bits= get_rac_count(&s->c) - 8*(s->c.bytestream - s->c.bytestream_start);
+ pc= s->c;
+ pc.bytestream_start=
+ pc.bytestream= p_buffer; //FIXME end/start? and at the other stoo
+ memcpy(p_state, s->block_state, sizeof(s->block_state));
+
+ if(level!=s->block_max_depth)
+ put_rac(&pc, &p_state[4 + s_context], 1);
+ put_rac(&pc, &p_state[1 + left->type + top->type], 0);
+ if(s->ref_frames > 1)
+ put_symbol(&pc, &p_state[128 + 1024 + 32*ref_context], best_ref, 0);
+ pred_mv(s, &pmx, &pmy, best_ref, left, top, tr);
+ put_symbol(&pc, &p_state[128 + 32*(mx_context + 16*!!best_ref)], mx - pmx, 1);
+ put_symbol(&pc, &p_state[128 + 32*(my_context + 16*!!best_ref)], my - pmy, 1);
+ p_len= pc.bytestream - pc.bytestream_start;
+ score += (s->lambda2*(get_rac_count(&pc)-base_bits))>>FF_LAMBDA_SHIFT;
+
+ block_s= block_w*block_w;
+ sum = pix_sum(current_data[0], stride, block_w, block_w);
+ l= (sum + block_s/2)/block_s;
+ iscore = pix_norm1(current_data[0], stride, block_w) - 2*l*sum + l*l*block_s;
+
+ if (s->nb_planes > 2) {
+ block_s= block_w*block_w>>(s->chroma_h_shift + s->chroma_v_shift);
+ sum = pix_sum(current_data[1], uvstride, block_w>>s->chroma_h_shift, block_w>>s->chroma_v_shift);
+ cb= (sum + block_s/2)/block_s;
+ // iscore += pix_norm1(¤t_mb[1][0], uvstride, block_w>>1) - 2*cb*sum + cb*cb*block_s;
+ sum = pix_sum(current_data[2], uvstride, block_w>>s->chroma_h_shift, block_w>>s->chroma_v_shift);
+ cr= (sum + block_s/2)/block_s;
+ // iscore += pix_norm1(¤t_mb[2][0], uvstride, block_w>>1) - 2*cr*sum + cr*cr*block_s;
+ }else
+ cb = cr = 0;
+
+ ic= s->c;
+ ic.bytestream_start=
+ ic.bytestream= i_buffer; //FIXME end/start? and at the other stoo
+ memcpy(i_state, s->block_state, sizeof(s->block_state));
+ if(level!=s->block_max_depth)
+ put_rac(&ic, &i_state[4 + s_context], 1);
+ put_rac(&ic, &i_state[1 + left->type + top->type], 1);
+ put_symbol(&ic, &i_state[32], l-pl , 1);
+ if (s->nb_planes > 2) {
+ put_symbol(&ic, &i_state[64], cb-pcb, 1);
+ put_symbol(&ic, &i_state[96], cr-pcr, 1);
+ }
+ i_len= ic.bytestream - ic.bytestream_start;
+ iscore += (s->lambda2*(get_rac_count(&ic)-base_bits))>>FF_LAMBDA_SHIFT;
+
+// assert(score==256*256*256*64-1);
+ av_assert1(iscore < 255*255*256 + s->lambda2*10);
+ av_assert1(iscore >= 0);
+ av_assert1(l>=0 && l<=255);
+ av_assert1(pl>=0 && pl<=255);
+
+ if(level==0){
+ int varc= iscore >> 8;
+ int vard= score >> 8;
+ if (vard <= 64 || vard < varc)
+ c->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);
+ else
+ c->scene_change_score+= s->m.qscale;
+ }
+
+ if(level!=s->block_max_depth){
+ put_rac(&s->c, &s->block_state[4 + s_context], 0);
+ score2 = encode_q_branch(s, level+1, 2*x+0, 2*y+0);
+ score2+= encode_q_branch(s, level+1, 2*x+1, 2*y+0);
+ score2+= encode_q_branch(s, level+1, 2*x+0, 2*y+1);
+ score2+= encode_q_branch(s, level+1, 2*x+1, 2*y+1);
+ score2+= s->lambda2>>FF_LAMBDA_SHIFT; //FIXME exact split overhead
+
+ if(score2 < score && score2 < iscore)
+ return score2;
+ }
+
+ if(iscore < score){
+ pred_mv(s, &pmx, &pmy, 0, left, top, tr);
+ memcpy(pbbak, i_buffer, i_len);
+ s->c= ic;
+ s->c.bytestream_start= pbbak_start;
+ s->c.bytestream= pbbak + i_len;
+ set_blocks(s, level, x, y, l, cb, cr, pmx, pmy, 0, BLOCK_INTRA);
+ memcpy(s->block_state, i_state, sizeof(s->block_state));
+ return iscore;
+ }else{
+ memcpy(pbbak, p_buffer, p_len);
+ s->c= pc;
+ s->c.bytestream_start= pbbak_start;
+ s->c.bytestream= pbbak + p_len;
+ set_blocks(s, level, x, y, pl, pcb, pcr, mx, my, best_ref, 0);
+ memcpy(s->block_state, p_state, sizeof(s->block_state));
+ return score;
+ }
+}
+
+static void encode_q_branch2(SnowContext *s, int level, int x, int y){
+ const int w= s->b_width << s->block_max_depth;
+ const int rem_depth= s->block_max_depth - level;
+ const int index= (x + y*w) << rem_depth;
+ int trx= (x+1)<<rem_depth;
+ BlockNode *b= &s->block[index];
+ const BlockNode *left = x ? &s->block[index-1] : &null_block;
+ const BlockNode *top = y ? &s->block[index-w] : &null_block;
+ const BlockNode *tl = y && x ? &s->block[index-w-1] : left;
+ const BlockNode *tr = y && trx<w && ((x&1)==0 || level==0) ? &s->block[index-w+(1<<rem_depth)] : tl; //FIXME use lt
+ int pl = left->color[0];
+ int pcb= left->color[1];
+ int pcr= left->color[2];
+ int pmx, pmy;
+ int ref_context= av_log2(2*left->ref) + av_log2(2*top->ref);
+ int mx_context= av_log2(2*FFABS(left->mx - top->mx)) + 16*!!b->ref;
+ int my_context= av_log2(2*FFABS(left->my - top->my)) + 16*!!b->ref;
+ int s_context= 2*left->level + 2*top->level + tl->level + tr->level;
+
+ if(s->keyframe){
+ set_blocks(s, level, x, y, pl, pcb, pcr, 0, 0, 0, BLOCK_INTRA);
+ return;
+ }
+
+ if(level!=s->block_max_depth){
+ if(same_block(b,b+1) && same_block(b,b+w) && same_block(b,b+w+1)){
+ put_rac(&s->c, &s->block_state[4 + s_context], 1);
+ }else{
+ put_rac(&s->c, &s->block_state[4 + s_context], 0);
+ encode_q_branch2(s, level+1, 2*x+0, 2*y+0);
+ encode_q_branch2(s, level+1, 2*x+1, 2*y+0);
+ encode_q_branch2(s, level+1, 2*x+0, 2*y+1);
+ encode_q_branch2(s, level+1, 2*x+1, 2*y+1);
+ return;
+ }
+ }
+ if(b->type & BLOCK_INTRA){
+ pred_mv(s, &pmx, &pmy, 0, left, top, tr);
+ put_rac(&s->c, &s->block_state[1 + (left->type&1) + (top->type&1)], 1);
+ put_symbol(&s->c, &s->block_state[32], b->color[0]-pl , 1);
+ if (s->nb_planes > 2) {
+ put_symbol(&s->c, &s->block_state[64], b->color[1]-pcb, 1);
+ put_symbol(&s->c, &s->block_state[96], b->color[2]-pcr, 1);
+ }
+ set_blocks(s, level, x, y, b->color[0], b->color[1], b->color[2], pmx, pmy, 0, BLOCK_INTRA);
+ }else{
+ pred_mv(s, &pmx, &pmy, b->ref, left, top, tr);
+ put_rac(&s->c, &s->block_state[1 + (left->type&1) + (top->type&1)], 0);
+ if(s->ref_frames > 1)
+ put_symbol(&s->c, &s->block_state[128 + 1024 + 32*ref_context], b->ref, 0);
+ put_symbol(&s->c, &s->block_state[128 + 32*mx_context], b->mx - pmx, 1);
+ put_symbol(&s->c, &s->block_state[128 + 32*my_context], b->my - pmy, 1);
+ set_blocks(s, level, x, y, pl, pcb, pcr, b->mx, b->my, b->ref, 0);
+ }
+}
+
+static int get_dc(SnowContext *s, int mb_x, int mb_y, int plane_index){
+ int i, x2, y2;
+ Plane *p= &s->plane[plane_index];
+ const int block_size = MB_SIZE >> s->block_max_depth;
+ const int block_w = plane_index ? block_size>>s->chroma_h_shift : block_size;
+ const int block_h = plane_index ? block_size>>s->chroma_v_shift : block_size;
+ const uint8_t *obmc = plane_index ? ff_obmc_tab[s->block_max_depth+s->chroma_h_shift] : ff_obmc_tab[s->block_max_depth];
+ const int obmc_stride= plane_index ? (2*block_size)>>s->chroma_h_shift : 2*block_size;
+ const int ref_stride= s->current_picture->linesize[plane_index];
+ uint8_t *src= s-> input_picture->data[plane_index];
+ IDWTELEM *dst= (IDWTELEM*)s->m.obmc_scratchpad + plane_index*block_size*block_size*4; //FIXME change to unsigned
+ const int b_stride = s->b_width << s->block_max_depth;
+ const int w= p->width;
+ const int h= p->height;
+ int index= mb_x + mb_y*b_stride;
+ BlockNode *b= &s->block[index];
+ BlockNode backup= *b;
+ int ab=0;
+ int aa=0;
+
+ av_assert2(s->chroma_h_shift == s->chroma_v_shift); //obmc stuff above
+
+ b->type|= BLOCK_INTRA;
+ b->color[plane_index]= 0;
+ memset(dst, 0, obmc_stride*obmc_stride*sizeof(IDWTELEM));
+
+ for(i=0; i<4; i++){
+ int mb_x2= mb_x + (i &1) - 1;
+ int mb_y2= mb_y + (i>>1) - 1;
+ int x= block_w*mb_x2 + block_w/2;
+ int y= block_h*mb_y2 + block_h/2;
+
+ add_yblock(s, 0, NULL, dst + (i&1)*block_w + (i>>1)*obmc_stride*block_h, NULL, obmc,
+ x, y, block_w, block_h, w, h, obmc_stride, ref_stride, obmc_stride, mb_x2, mb_y2, 0, 0, plane_index);
+
+ for(y2= FFMAX(y, 0); y2<FFMIN(h, y+block_h); y2++){
+ for(x2= FFMAX(x, 0); x2<FFMIN(w, x+block_w); x2++){
+ int index= x2-(block_w*mb_x - block_w/2) + (y2-(block_h*mb_y - block_h/2))*obmc_stride;
+ int obmc_v= obmc[index];
+ int d;
+ if(y<0) obmc_v += obmc[index + block_h*obmc_stride];
+ if(x<0) obmc_v += obmc[index + block_w];
+ if(y+block_h>h) obmc_v += obmc[index - block_h*obmc_stride];
+ if(x+block_w>w) obmc_v += obmc[index - block_w];
+ //FIXME precalculate this or simplify it somehow else
+
+ d = -dst[index] + (1<<(FRAC_BITS-1));
+ dst[index] = d;
+ ab += (src[x2 + y2*ref_stride] - (d>>FRAC_BITS)) * obmc_v;
+ aa += obmc_v * obmc_v; //FIXME precalculate this
+ }
+ }
+ }
+ *b= backup;
+
+ return av_clip( ROUNDED_DIV(ab<<LOG2_OBMC_MAX, aa), 0, 255); //FIXME we should not need clipping
+}
+
+static inline int get_block_bits(SnowContext *s, int x, int y, int w){
+ const int b_stride = s->b_width << s->block_max_depth;
+ const int b_height = s->b_height<< s->block_max_depth;
+ int index= x + y*b_stride;
+ const BlockNode *b = &s->block[index];
+ const BlockNode *left = x ? &s->block[index-1] : &null_block;
+ const BlockNode *top = y ? &s->block[index-b_stride] : &null_block;
+ const BlockNode *tl = y && x ? &s->block[index-b_stride-1] : left;
+ const BlockNode *tr = y && x+w<b_stride ? &s->block[index-b_stride+w] : tl;
+ int dmx, dmy;
+// int mx_context= av_log2(2*FFABS(left->mx - top->mx));
+// int my_context= av_log2(2*FFABS(left->my - top->my));
+
+ if(x<0 || x>=b_stride || y>=b_height)
+ return 0;
+/*
+1 0 0
+01X 1-2 1
+001XX 3-6 2-3
+0001XXX 7-14 4-7
+00001XXXX 15-30 8-15
+*/
+//FIXME try accurate rate
+//FIXME intra and inter predictors if surrounding blocks are not the same type
+ if(b->type & BLOCK_INTRA){
+ return 3+2*( av_log2(2*FFABS(left->color[0] - b->color[0]))
+ + av_log2(2*FFABS(left->color[1] - b->color[1]))
+ + av_log2(2*FFABS(left->color[2] - b->color[2])));
+ }else{
+ pred_mv(s, &dmx, &dmy, b->ref, left, top, tr);
+ dmx-= b->mx;
+ dmy-= b->my;
+ return 2*(1 + av_log2(2*FFABS(dmx)) //FIXME kill the 2* can be merged in lambda
+ + av_log2(2*FFABS(dmy))
+ + av_log2(2*b->ref));
+ }
+}
+
+static int get_block_rd(SnowContext *s, int mb_x, int mb_y, int plane_index, uint8_t (*obmc_edged)[MB_SIZE * 2]){
+ Plane *p= &s->plane[plane_index];
+ const int block_size = MB_SIZE >> s->block_max_depth;
+ const int block_w = plane_index ? block_size>>s->chroma_h_shift : block_size;
+ const int block_h = plane_index ? block_size>>s->chroma_v_shift : block_size;
+ const int obmc_stride= plane_index ? (2*block_size)>>s->chroma_h_shift : 2*block_size;
+ const int ref_stride= s->current_picture->linesize[plane_index];
+ uint8_t *dst= s->current_picture->data[plane_index];
+ uint8_t *src= s-> input_picture->data[plane_index];
+ IDWTELEM *pred= (IDWTELEM*)s->m.obmc_scratchpad + plane_index*block_size*block_size*4;
+ uint8_t *cur = s->scratchbuf;
+ uint8_t *tmp = s->emu_edge_buffer;
+ const int b_stride = s->b_width << s->block_max_depth;
+ const int b_height = s->b_height<< s->block_max_depth;
+ const int w= p->width;
+ const int h= p->height;
+ int distortion;
+ int rate= 0;
+ const int penalty_factor= get_penalty_factor(s->lambda, s->lambda2, s->avctx->me_cmp);
+ int sx= block_w*mb_x - block_w/2;
+ int sy= block_h*mb_y - block_h/2;
+ int x0= FFMAX(0,-sx);
+ int y0= FFMAX(0,-sy);
+ int x1= FFMIN(block_w*2, w-sx);
+ int y1= FFMIN(block_h*2, h-sy);
+ int i,x,y;
+
+ av_assert2(s->chroma_h_shift == s->chroma_v_shift); //obmc and square assumtions below chckinhg only block_w
+
+ ff_snow_pred_block(s, cur, tmp, ref_stride, sx, sy, block_w*2, block_h*2, &s->block[mb_x + mb_y*b_stride], plane_index, w, h);
+
+ for(y=y0; y<y1; y++){
+ const uint8_t *obmc1= obmc_edged[y];
+ const IDWTELEM *pred1 = pred + y*obmc_stride;
+ uint8_t *cur1 = cur + y*ref_stride;
+ uint8_t *dst1 = dst + sx + (sy+y)*ref_stride;
+ for(x=x0; x<x1; x++){
+#if FRAC_BITS >= LOG2_OBMC_MAX
+ int v = (cur1[x] * obmc1[x]) << (FRAC_BITS - LOG2_OBMC_MAX);
+#else
+ int v = (cur1[x] * obmc1[x] + (1<<(LOG2_OBMC_MAX - FRAC_BITS-1))) >> (LOG2_OBMC_MAX - FRAC_BITS);
+#endif
+ v = (v + pred1[x]) >> FRAC_BITS;
+ if(v&(~255)) v= ~(v>>31);
+ dst1[x] = v;
+ }
+ }
+
+ /* copy the regions where obmc[] = (uint8_t)256 */
+ if(LOG2_OBMC_MAX == 8
+ && (mb_x == 0 || mb_x == b_stride-1)
+ && (mb_y == 0 || mb_y == b_height-1)){
+ if(mb_x == 0)
+ x1 = block_w;
+ else
+ x0 = block_w;
+ if(mb_y == 0)
+ y1 = block_h;
+ else
+ y0 = block_h;
+ for(y=y0; y<y1; y++)
+ memcpy(dst + sx+x0 + (sy+y)*ref_stride, cur + x0 + y*ref_stride, x1-x0);
+ }
+
+ if(block_w==16){
+ /* FIXME rearrange dsputil to fit 32x32 cmp functions */
+ /* FIXME check alignment of the cmp wavelet vs the encoding wavelet */
+ /* FIXME cmps overlap but do not cover the wavelet's whole support.
+ * So improving the score of one block is not strictly guaranteed
+ * to improve the score of the whole frame, thus iterative motion
+ * estimation does not always converge. */
+ if(s->avctx->me_cmp == FF_CMP_W97)
+ distortion = ff_w97_32_c(&s->m, src + sx + sy*ref_stride, dst + sx + sy*ref_stride, ref_stride, 32);
+ else if(s->avctx->me_cmp == FF_CMP_W53)
+ distortion = ff_w53_32_c(&s->m, src + sx + sy*ref_stride, dst + sx + sy*ref_stride, ref_stride, 32);
+ else{
+ distortion = 0;
+ for(i=0; i<4; i++){
+ int off = sx+16*(i&1) + (sy+16*(i>>1))*ref_stride;
+ distortion += s->dsp.me_cmp[0](&s->m, src + off, dst + off, ref_stride, 16);
+ }
+ }
+ }else{
+ av_assert2(block_w==8);
+ distortion = s->dsp.me_cmp[0](&s->m, src + sx + sy*ref_stride, dst + sx + sy*ref_stride, ref_stride, block_w*2);
+ }
+
+ if(plane_index==0){
+ for(i=0; i<4; i++){
+/* ..RRr
+ * .RXx.
+ * rxx..
+ */
+ rate += get_block_bits(s, mb_x + (i&1) - (i>>1), mb_y + (i>>1), 1);
+ }
+ if(mb_x == b_stride-2)
+ rate += get_block_bits(s, mb_x + 1, mb_y + 1, 1);
+ }
+ return distortion + rate*penalty_factor;
+}
+
+static int get_4block_rd(SnowContext *s, int mb_x, int mb_y, int plane_index){
+ int i, y2;
+ Plane *p= &s->plane[plane_index];
+ const int block_size = MB_SIZE >> s->block_max_depth;
+ const int block_w = plane_index ? block_size>>s->chroma_h_shift : block_size;
+ const int block_h = plane_index ? block_size>>s->chroma_v_shift : block_size;
+ const uint8_t *obmc = plane_index ? ff_obmc_tab[s->block_max_depth+s->chroma_h_shift] : ff_obmc_tab[s->block_max_depth];
+ const int obmc_stride= plane_index ? (2*block_size)>>s->chroma_h_shift : 2*block_size;
+ const int ref_stride= s->current_picture->linesize[plane_index];
+ uint8_t *dst= s->current_picture->data[plane_index];
+ uint8_t *src= s-> input_picture->data[plane_index];
+ //FIXME zero_dst is const but add_yblock changes dst if add is 0 (this is never the case for dst=zero_dst
+ // const has only been removed from zero_dst to suppress a warning
+ static IDWTELEM zero_dst[4096]; //FIXME
+ const int b_stride = s->b_width << s->block_max_depth;
+ const int w= p->width;
+ const int h= p->height;
+ int distortion= 0;
+ int rate= 0;
+ const int penalty_factor= get_penalty_factor(s->lambda, s->lambda2, s->avctx->me_cmp);
+
+ av_assert2(s->chroma_h_shift == s->chroma_v_shift); //obmc and square assumtions below
+
+ for(i=0; i<9; i++){
+ int mb_x2= mb_x + (i%3) - 1;
+ int mb_y2= mb_y + (i/3) - 1;
+ int x= block_w*mb_x2 + block_w/2;
+ int y= block_h*mb_y2 + block_h/2;
+
+ add_yblock(s, 0, NULL, zero_dst, dst, obmc,
+ x, y, block_w, block_h, w, h, /*dst_stride*/0, ref_stride, obmc_stride, mb_x2, mb_y2, 1, 1, plane_index);
+
+ //FIXME find a cleaner/simpler way to skip the outside stuff
+ for(y2= y; y2<0; y2++)
+ memcpy(dst + x + y2*ref_stride, src + x + y2*ref_stride, block_w);
+ for(y2= h; y2<y+block_h; y2++)
+ memcpy(dst + x + y2*ref_stride, src + x + y2*ref_stride, block_w);
+ if(x<0){
+ for(y2= y; y2<y+block_h; y2++)
+ memcpy(dst + x + y2*ref_stride, src + x + y2*ref_stride, -x);
+ }
+ if(x+block_w > w){
+ for(y2= y; y2<y+block_h; y2++)
+ memcpy(dst + w + y2*ref_stride, src + w + y2*ref_stride, x+block_w - w);
+ }
+
+ av_assert1(block_w== 8 || block_w==16);
+ distortion += s->dsp.me_cmp[block_w==8](&s->m, src + x + y*ref_stride, dst + x + y*ref_stride, ref_stride, block_h);
+ }
+
+ if(plane_index==0){
+ BlockNode *b= &s->block[mb_x+mb_y*b_stride];
+ int merged= same_block(b,b+1) && same_block(b,b+b_stride) && same_block(b,b+b_stride+1);
+
+/* ..RRRr
+ * .RXXx.
+ * .RXXx.
+ * rxxx.
+ */
+ if(merged)
+ rate = get_block_bits(s, mb_x, mb_y, 2);
+ for(i=merged?4:0; i<9; i++){
+ static const int dxy[9][2] = {{0,0},{1,0},{0,1},{1,1},{2,0},{2,1},{-1,2},{0,2},{1,2}};
+ rate += get_block_bits(s, mb_x + dxy[i][0], mb_y + dxy[i][1], 1);
+ }
+ }
+ return distortion + rate*penalty_factor;
+}
+
+static int encode_subband_c0run(SnowContext *s, SubBand *b, const IDWTELEM *src, const IDWTELEM *parent, int stride, int orientation){
+ const int w= b->width;
+ const int h= b->height;
+ int x, y;
+
+ if(1){
+ int run=0;
+ int *runs = s->run_buffer;
+ int run_index=0;
+ int max_index;
+
+ for(y=0; y<h; y++){
+ for(x=0; x<w; x++){
+ int v, p=0;
+ int /*ll=0, */l=0, lt=0, t=0, rt=0;
+ v= src[x + y*stride];
+
+ if(y){
+ t= src[x + (y-1)*stride];
+ if(x){
+ lt= src[x - 1 + (y-1)*stride];
+ }
+ if(x + 1 < w){
+ rt= src[x + 1 + (y-1)*stride];
+ }
+ }
+ if(x){
+ l= src[x - 1 + y*stride];
+ /*if(x > 1){
+ if(orientation==1) ll= src[y + (x-2)*stride];
+ else ll= src[x - 2 + y*stride];
+ }*/
+ }
+ if(parent){
+ int px= x>>1;
+ int py= y>>1;
+ if(px<b->parent->width && py<b->parent->height)
+ p= parent[px + py*2*stride];
+ }
+ if(!(/*ll|*/l|lt|t|rt|p)){
+ if(v){
+ runs[run_index++]= run;
+ run=0;
+ }else{
+ run++;
+ }
+ }
+ }
+ }
+ max_index= run_index;
+ runs[run_index++]= run;
+ run_index=0;
+ run= runs[run_index++];
+
+ put_symbol2(&s->c, b->state[30], max_index, 0);
+ if(run_index <= max_index)
+ put_symbol2(&s->c, b->state[1], run, 3);
+
+ for(y=0; y<h; y++){
+ if(s->c.bytestream_end - s->c.bytestream < w*40){
+ av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
+ return -1;
+ }
+ for(x=0; x<w; x++){
+ int v, p=0;
+ int /*ll=0, */l=0, lt=0, t=0, rt=0;
+ v= src[x + y*stride];
+
+ if(y){
+ t= src[x + (y-1)*stride];
+ if(x){
+ lt= src[x - 1 + (y-1)*stride];
+ }
+ if(x + 1 < w){
+ rt= src[x + 1 + (y-1)*stride];
+ }
+ }
+ if(x){
+ l= src[x - 1 + y*stride];
+ /*if(x > 1){
+ if(orientation==1) ll= src[y + (x-2)*stride];
+ else ll= src[x - 2 + y*stride];
+ }*/
+ }
+ if(parent){
+ int px= x>>1;
+ int py= y>>1;
+ if(px<b->parent->width && py<b->parent->height)
+ p= parent[px + py*2*stride];
+ }
+ if(/*ll|*/l|lt|t|rt|p){
+ int context= av_log2(/*FFABS(ll) + */3*FFABS(l) + FFABS(lt) + 2*FFABS(t) + FFABS(rt) + FFABS(p));
+
+ put_rac(&s->c, &b->state[0][context], !!v);
+ }else{
+ if(!run){
+ run= runs[run_index++];
+
+ if(run_index <= max_index)
+ put_symbol2(&s->c, b->state[1], run, 3);
+ av_assert2(v);
+ }else{
+ run--;
+ av_assert2(!v);
+ }
+ }
+ if(v){
+ int context= av_log2(/*FFABS(ll) + */3*FFABS(l) + FFABS(lt) + 2*FFABS(t) + FFABS(rt) + FFABS(p));
+ int l2= 2*FFABS(l) + (l<0);
+ int t2= 2*FFABS(t) + (t<0);
+
+ put_symbol2(&s->c, b->state[context + 2], FFABS(v)-1, context-4);
+ put_rac(&s->c, &b->state[0][16 + 1 + 3 + ff_quant3bA[l2&0xFF] + 3*ff_quant3bA[t2&0xFF]], v<0);
+ }
+ }
+ }
+ }
+ return 0;
+}
+
+static int encode_subband(SnowContext *s, SubBand *b, const IDWTELEM *src, const IDWTELEM *parent, int stride, int orientation){
+// encode_subband_qtree(s, b, src, parent, stride, orientation);
+// encode_subband_z0run(s, b, src, parent, stride, orientation);
+ return encode_subband_c0run(s, b, src, parent, stride, orientation);
+// encode_subband_dzr(s, b, src, parent, stride, orientation);
+}
+
+static av_always_inline int check_block(SnowContext *s, int mb_x, int mb_y, int p[3], int intra, uint8_t (*obmc_edged)[MB_SIZE * 2], int *best_rd){
+ const int b_stride= s->b_width << s->block_max_depth;
+ BlockNode *block= &s->block[mb_x + mb_y * b_stride];
+ BlockNode backup= *block;
+ unsigned value;
+ int rd, index;
+
+ av_assert2(mb_x>=0 && mb_y>=0);
+ av_assert2(mb_x<b_stride);
+
+ if(intra){
+ block->color[0] = p[0];
+ block->color[1] = p[1];
+ block->color[2] = p[2];
+ block->type |= BLOCK_INTRA;
+ }else{
+ index= (p[0] + 31*p[1]) & (ME_CACHE_SIZE-1);
+ value= s->me_cache_generation + (p[0]>>10) + (p[1]<<6) + (block->ref<<12);
+ if(s->me_cache[index] == value)
+ return 0;
+ s->me_cache[index]= value;
+
+ block->mx= p[0];
+ block->my= p[1];
+ block->type &= ~BLOCK_INTRA;
+ }
+
+ rd= get_block_rd(s, mb_x, mb_y, 0, obmc_edged);
+
+//FIXME chroma
+ if(rd < *best_rd){
+ *best_rd= rd;
+ return 1;
+ }else{
+ *block= backup;
+ return 0;
+ }
+}
+
+/* special case for int[2] args we discard afterwards,
+ * fixes compilation problem with gcc 2.95 */
+static av_always_inline int check_block_inter(SnowContext *s, int mb_x, int mb_y, int p0, int p1, uint8_t (*obmc_edged)[MB_SIZE * 2], int *best_rd){
+ int p[2] = {p0, p1};
+ return check_block(s, mb_x, mb_y, p, 0, obmc_edged, best_rd);
+}
+
+static av_always_inline int check_4block_inter(SnowContext *s, int mb_x, int mb_y, int p0, int p1, int ref, int *best_rd){
+ const int b_stride= s->b_width << s->block_max_depth;
+ BlockNode *block= &s->block[mb_x + mb_y * b_stride];
+ BlockNode backup[4];
+ unsigned value;
+ int rd, index;
+
+ /* We don't initialize backup[] during variable declaration, because
+ * that fails to compile on MSVC: "cannot convert from 'BlockNode' to
+ * 'int16_t'". */
+ backup[0] = block[0];
+ backup[1] = block[1];
+ backup[2] = block[b_stride];
+ backup[3] = block[b_stride + 1];
+
+ av_assert2(mb_x>=0 && mb_y>=0);
+ av_assert2(mb_x<b_stride);
+ av_assert2(((mb_x|mb_y)&1) == 0);
+
+ index= (p0 + 31*p1) & (ME_CACHE_SIZE-1);
+ value= s->me_cache_generation + (p0>>10) + (p1<<6) + (block->ref<<12);
+ if(s->me_cache[index] == value)
+ return 0;
+ s->me_cache[index]= value;
+
+ block->mx= p0;
+ block->my= p1;
+ block->ref= ref;
+ block->type &= ~BLOCK_INTRA;
+ block[1]= block[b_stride]= block[b_stride+1]= *block;
+
+ rd= get_4block_rd(s, mb_x, mb_y, 0);
+
+//FIXME chroma
+ if(rd < *best_rd){
+ *best_rd= rd;
+ return 1;
+ }else{
+ block[0]= backup[0];
+ block[1]= backup[1];
+ block[b_stride]= backup[2];
+ block[b_stride+1]= backup[3];
+ return 0;
+ }
+}
+
+static void iterative_me(SnowContext *s){
+ int pass, mb_x, mb_y;
+ const int b_width = s->b_width << s->block_max_depth;
+ const int b_height= s->b_height << s->block_max_depth;
+ const int b_stride= b_width;
+ int color[3];
+
+ {
+ RangeCoder r = s->c;
+ uint8_t state[sizeof(s->block_state)];
+ memcpy(state, s->block_state, sizeof(s->block_state));
+ for(mb_y= 0; mb_y<s->b_height; mb_y++)
+ for(mb_x= 0; mb_x<s->b_width; mb_x++)
+ encode_q_branch(s, 0, mb_x, mb_y);
+ s->c = r;
+ memcpy(s->block_state, state, sizeof(s->block_state));
+ }
+
+ for(pass=0; pass<25; pass++){
+ int change= 0;
+
+ for(mb_y= 0; mb_y<b_height; mb_y++){
+ for(mb_x= 0; mb_x<b_width; mb_x++){
+ int dia_change, i, j, ref;
+ int best_rd= INT_MAX, ref_rd;
+ BlockNode backup, ref_b;
+ const int index= mb_x + mb_y * b_stride;
+ BlockNode *block= &s->block[index];
+ BlockNode *tb = mb_y ? &s->block[index-b_stride ] : NULL;
+ BlockNode *lb = mb_x ? &s->block[index -1] : NULL;
+ BlockNode *rb = mb_x+1<b_width ? &s->block[index +1] : NULL;
+ BlockNode *bb = mb_y+1<b_height ? &s->block[index+b_stride ] : NULL;
+ BlockNode *tlb= mb_x && mb_y ? &s->block[index-b_stride-1] : NULL;
+ BlockNode *trb= mb_x+1<b_width && mb_y ? &s->block[index-b_stride+1] : NULL;
+ BlockNode *blb= mb_x && mb_y+1<b_height ? &s->block[index+b_stride-1] : NULL;
+ BlockNode *brb= mb_x+1<b_width && mb_y+1<b_height ? &s->block[index+b_stride+1] : NULL;
+ const int b_w= (MB_SIZE >> s->block_max_depth);
+ uint8_t obmc_edged[MB_SIZE * 2][MB_SIZE * 2];
+
+ if(pass && (block->type & BLOCK_OPT))
+ continue;
+ block->type |= BLOCK_OPT;
+
+ backup= *block;
+
+ if(!s->me_cache_generation)
+ memset(s->me_cache, 0, sizeof(s->me_cache));
+ s->me_cache_generation += 1<<22;
+
+ //FIXME precalculate
+ {
+ int x, y;
+ for (y = 0; y < b_w * 2; y++)
+ memcpy(obmc_edged[y], ff_obmc_tab[s->block_max_depth] + y * b_w * 2, b_w * 2);
+ if(mb_x==0)
+ for(y=0; y<b_w*2; y++)
+ memset(obmc_edged[y], obmc_edged[y][0] + obmc_edged[y][b_w-1], b_w);
+ if(mb_x==b_stride-1)
+ for(y=0; y<b_w*2; y++)
+ memset(obmc_edged[y]+b_w, obmc_edged[y][b_w] + obmc_edged[y][b_w*2-1], b_w);
+ if(mb_y==0){
+ for(x=0; x<b_w*2; x++)
+ obmc_edged[0][x] += obmc_edged[b_w-1][x];
+ for(y=1; y<b_w; y++)
+ memcpy(obmc_edged[y], obmc_edged[0], b_w*2);
+ }
+ if(mb_y==b_height-1){
+ for(x=0; x<b_w*2; x++)
+ obmc_edged[b_w*2-1][x] += obmc_edged[b_w][x];
+ for(y=b_w; y<b_w*2-1; y++)
+ memcpy(obmc_edged[y], obmc_edged[b_w*2-1], b_w*2);
+ }
+ }
+
+ //skip stuff outside the picture
+ if(mb_x==0 || mb_y==0 || mb_x==b_width-1 || mb_y==b_height-1){
+ uint8_t *src= s-> input_picture->data[0];
+ uint8_t *dst= s->current_picture->data[0];
+ const int stride= s->current_picture->linesize[0];
+ const int block_w= MB_SIZE >> s->block_max_depth;
+ const int block_h= MB_SIZE >> s->block_max_depth;
+ const int sx= block_w*mb_x - block_w/2;
+ const int sy= block_h*mb_y - block_h/2;
+ const int w= s->plane[0].width;
+ const int h= s->plane[0].height;
+ int y;
+
+ for(y=sy; y<0; y++)
+ memcpy(dst + sx + y*stride, src + sx + y*stride, block_w*2);
+ for(y=h; y<sy+block_h*2; y++)
+ memcpy(dst + sx + y*stride, src + sx + y*stride, block_w*2);
+ if(sx<0){
+ for(y=sy; y<sy+block_h*2; y++)
+ memcpy(dst + sx + y*stride, src + sx + y*stride, -sx);
+ }
+ if(sx+block_w*2 > w){
+ for(y=sy; y<sy+block_h*2; y++)
+ memcpy(dst + w + y*stride, src + w + y*stride, sx+block_w*2 - w);
+ }
+ }
+
+ // intra(black) = neighbors' contribution to the current block
+ for(i=0; i < s->nb_planes; i++)
+ color[i]= get_dc(s, mb_x, mb_y, i);
+
+ // get previous score (cannot be cached due to OBMC)
+ if(pass > 0 && (block->type&BLOCK_INTRA)){
+ int color0[3]= {block->color[0], block->color[1], block->color[2]};
+ check_block(s, mb_x, mb_y, color0, 1, obmc_edged, &best_rd);
+ }else
+ check_block_inter(s, mb_x, mb_y, block->mx, block->my, obmc_edged, &best_rd);
+
+ ref_b= *block;
+ ref_rd= best_rd;
+ for(ref=0; ref < s->ref_frames; ref++){
+ int16_t (*mvr)[2]= &s->ref_mvs[ref][index];
+ if(s->ref_scores[ref][index] > s->ref_scores[ref_b.ref][index]*3/2) //FIXME tune threshold
+ continue;
+ block->ref= ref;
+ best_rd= INT_MAX;
+
+ check_block_inter(s, mb_x, mb_y, mvr[0][0], mvr[0][1], obmc_edged, &best_rd);
+ check_block_inter(s, mb_x, mb_y, 0, 0, obmc_edged, &best_rd);
+ if(tb)
+ check_block_inter(s, mb_x, mb_y, mvr[-b_stride][0], mvr[-b_stride][1], obmc_edged, &best_rd);
+ if(lb)
+ check_block_inter(s, mb_x, mb_y, mvr[-1][0], mvr[-1][1], obmc_edged, &best_rd);
+ if(rb)
+ check_block_inter(s, mb_x, mb_y, mvr[1][0], mvr[1][1], obmc_edged, &best_rd);
+ if(bb)
+ check_block_inter(s, mb_x, mb_y, mvr[b_stride][0], mvr[b_stride][1], obmc_edged, &best_rd);
+
+ /* fullpel ME */
+ //FIXME avoid subpel interpolation / round to nearest integer
+ do{
+ dia_change=0;
+ for(i=0; i<FFMAX(s->avctx->dia_size, 1); i++){
+ for(j=0; j<i; j++){
+ dia_change |= check_block_inter(s, mb_x, mb_y, block->mx+4*(i-j), block->my+(4*j), obmc_edged, &best_rd);
+ dia_change |= check_block_inter(s, mb_x, mb_y, block->mx-4*(i-j), block->my-(4*j), obmc_edged, &best_rd);
+ dia_change |= check_block_inter(s, mb_x, mb_y, block->mx+4*(i-j), block->my-(4*j), obmc_edged, &best_rd);
+ dia_change |= check_block_inter(s, mb_x, mb_y, block->mx-4*(i-j), block->my+(4*j), obmc_edged, &best_rd);
+ }
+ }
+ }while(dia_change);
+ /* subpel ME */
+ do{
+ static const int square[8][2]= {{+1, 0},{-1, 0},{ 0,+1},{ 0,-1},{+1,+1},{-1,-1},{+1,-1},{-1,+1},};
+ dia_change=0;
+ for(i=0; i<8; i++)
+ dia_change |= check_block_inter(s, mb_x, mb_y, block->mx+square[i][0], block->my+square[i][1], obmc_edged, &best_rd);
+ }while(dia_change);
+ //FIXME or try the standard 2 pass qpel or similar
+
+ mvr[0][0]= block->mx;
+ mvr[0][1]= block->my;
+ if(ref_rd > best_rd){
+ ref_rd= best_rd;
+ ref_b= *block;
+ }
+ }
+ best_rd= ref_rd;
+ *block= ref_b;
+ check_block(s, mb_x, mb_y, color, 1, obmc_edged, &best_rd);
+ //FIXME RD style color selection
+ if(!same_block(block, &backup)){
+ if(tb ) tb ->type &= ~BLOCK_OPT;
+ if(lb ) lb ->type &= ~BLOCK_OPT;
+ if(rb ) rb ->type &= ~BLOCK_OPT;
+ if(bb ) bb ->type &= ~BLOCK_OPT;
+ if(tlb) tlb->type &= ~BLOCK_OPT;
+ if(trb) trb->type &= ~BLOCK_OPT;
+ if(blb) blb->type &= ~BLOCK_OPT;
+ if(brb) brb->type &= ~BLOCK_OPT;
+ change ++;
+ }
+ }
+ }
+ av_log(s->avctx, AV_LOG_ERROR, "pass:%d changed:%d\n", pass, change);
+ if(!change)
+ break;
+ }
+
+ if(s->block_max_depth == 1){
+ int change= 0;
+ for(mb_y= 0; mb_y<b_height; mb_y+=2){
+ for(mb_x= 0; mb_x<b_width; mb_x+=2){
+ int i;
+ int best_rd, init_rd;
+ const int index= mb_x + mb_y * b_stride;
+ BlockNode *b[4];
+
+ b[0]= &s->block[index];
+ b[1]= b[0]+1;
+ b[2]= b[0]+b_stride;
+ b[3]= b[2]+1;
+ if(same_block(b[0], b[1]) &&
+ same_block(b[0], b[2]) &&
+ same_block(b[0], b[3]))
+ continue;
+
+ if(!s->me_cache_generation)
+ memset(s->me_cache, 0, sizeof(s->me_cache));
+ s->me_cache_generation += 1<<22;
+
+ init_rd= best_rd= get_4block_rd(s, mb_x, mb_y, 0);
+
+ //FIXME more multiref search?
+ check_4block_inter(s, mb_x, mb_y,
+ (b[0]->mx + b[1]->mx + b[2]->mx + b[3]->mx + 2) >> 2,
+ (b[0]->my + b[1]->my + b[2]->my + b[3]->my + 2) >> 2, 0, &best_rd);
+
+ for(i=0; i<4; i++)
+ if(!(b[i]->type&BLOCK_INTRA))
+ check_4block_inter(s, mb_x, mb_y, b[i]->mx, b[i]->my, b[i]->ref, &best_rd);
+
+ if(init_rd != best_rd)
+ change++;
+ }
+ }
+ av_log(s->avctx, AV_LOG_ERROR, "pass:4mv changed:%d\n", change*4);
+ }
+}
+
+static void encode_blocks(SnowContext *s, int search){
+ int x, y;
+ int w= s->b_width;
+ int h= s->b_height;
+
+ if(s->avctx->me_method == ME_ITER && !s->keyframe && search)
+ iterative_me(s);
+
+ for(y=0; y<h; y++){
+ if(s->c.bytestream_end - s->c.bytestream < w*MB_SIZE*MB_SIZE*3){ //FIXME nicer limit
+ av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
+ return;
+ }
+ for(x=0; x<w; x++){
+ if(s->avctx->me_method == ME_ITER || !search)
+ encode_q_branch2(s, 0, x, y);
+ else
+ encode_q_branch (s, 0, x, y);
+ }
+ }
+}
+
+static void quantize(SnowContext *s, SubBand *b, IDWTELEM *dst, DWTELEM *src, int stride, int bias){
+ const int w= b->width;
+ const int h= b->height;
+ const int qlog= av_clip(s->qlog + b->qlog, 0, QROOT*16);
+ const int qmul= ff_qexp[qlog&(QROOT-1)]<<((qlog>>QSHIFT) + ENCODER_EXTRA_BITS);
+ int x,y, thres1, thres2;
+
+ if(s->qlog == LOSSLESS_QLOG){
+ for(y=0; y<h; y++)
+ for(x=0; x<w; x++)
+ dst[x + y*stride]= src[x + y*stride];
+ return;
+ }
+
+ bias= bias ? 0 : (3*qmul)>>3;
+ thres1= ((qmul - bias)>>QEXPSHIFT) - 1;
+ thres2= 2*thres1;
+
+ if(!bias){
+ for(y=0; y<h; y++){
+ for(x=0; x<w; x++){
+ int i= src[x + y*stride];
+
+ if((unsigned)(i+thres1) > thres2){
+ if(i>=0){
+ i<<= QEXPSHIFT;
+ i/= qmul; //FIXME optimize
+ dst[x + y*stride]= i;
+ }else{
+ i= -i;
+ i<<= QEXPSHIFT;
+ i/= qmul; //FIXME optimize
+ dst[x + y*stride]= -i;
+ }
+ }else
+ dst[x + y*stride]= 0;
+ }
+ }
+ }else{
+ for(y=0; y<h; y++){
+ for(x=0; x<w; x++){
+ int i= src[x + y*stride];
+
+ if((unsigned)(i+thres1) > thres2){
+ if(i>=0){
+ i<<= QEXPSHIFT;
+ i= (i + bias) / qmul; //FIXME optimize
+ dst[x + y*stride]= i;
+ }else{
+ i= -i;
+ i<<= QEXPSHIFT;
+ i= (i + bias) / qmul; //FIXME optimize
+ dst[x + y*stride]= -i;
+ }
+ }else
+ dst[x + y*stride]= 0;
+ }
+ }
+ }
+}
+
+static void dequantize(SnowContext *s, SubBand *b, IDWTELEM *src, int stride){
+ const int w= b->width;
+ const int h= b->height;
+ const int qlog= av_clip(s->qlog + b->qlog, 0, QROOT*16);
+ const int qmul= ff_qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT);
+ const int qadd= (s->qbias*qmul)>>QBIAS_SHIFT;
+ int x,y;
+
+ if(s->qlog == LOSSLESS_QLOG) return;
+
+ for(y=0; y<h; y++){
+ for(x=0; x<w; x++){
+ int i= src[x + y*stride];
+ if(i<0){
+ src[x + y*stride]= -((-i*qmul + qadd)>>(QEXPSHIFT)); //FIXME try different bias
+ }else if(i>0){
+ src[x + y*stride]= (( i*qmul + qadd)>>(QEXPSHIFT));
+ }
+ }
+ }
+}
+
+static void decorrelate(SnowContext *s, SubBand *b, IDWTELEM *src, int stride, int inverse, int use_median){
+ const int w= b->width;
+ const int h= b->height;
+ int x,y;
+
+ for(y=h-1; y>=0; y--){
+ for(x=w-1; x>=0; x--){
+ int i= x + y*stride;
+
+ if(x){
+ if(use_median){
+ if(y && x+1<w) src[i] -= mid_pred(src[i - 1], src[i - stride], src[i - stride + 1]);
+ else src[i] -= src[i - 1];
+ }else{
+ if(y) src[i] -= mid_pred(src[i - 1], src[i - stride], src[i - 1] + src[i - stride] - src[i - 1 - stride]);
+ else src[i] -= src[i - 1];
+ }
+ }else{
+ if(y) src[i] -= src[i - stride];
+ }
+ }
+ }
+}
+
+static void correlate(SnowContext *s, SubBand *b, IDWTELEM *src, int stride, int inverse, int use_median){
+ const int w= b->width;
+ const int h= b->height;
+ int x,y;
+
+ for(y=0; y<h; y++){
+ for(x=0; x<w; x++){
+ int i= x + y*stride;
+
+ if(x){
+ if(use_median){
+ if(y && x+1<w) src[i] += mid_pred(src[i - 1], src[i - stride], src[i - stride + 1]);
+ else src[i] += src[i - 1];
+ }else{
+ if(y) src[i] += mid_pred(src[i - 1], src[i - stride], src[i - 1] + src[i - stride] - src[i - 1 - stride]);
+ else src[i] += src[i - 1];
+ }
+ }else{
+ if(y) src[i] += src[i - stride];
+ }
+ }
+ }
+}
+
+static void encode_qlogs(SnowContext *s){
+ int plane_index, level, orientation;
+
+ for(plane_index=0; plane_index<FFMIN(s->nb_planes, 2); plane_index++){
+ for(level=0; level<s->spatial_decomposition_count; level++){
+ for(orientation=level ? 1:0; orientation<4; orientation++){
+ if(orientation==2) continue;
+ put_symbol(&s->c, s->header_state, s->plane[plane_index].band[level][orientation].qlog, 1);
+ }
+ }
+ }
+}
+
+static void encode_header(SnowContext *s){
+ int plane_index, i;
+ uint8_t kstate[32];
+
+ memset(kstate, MID_STATE, sizeof(kstate));
+
+ put_rac(&s->c, kstate, s->keyframe);
+ if(s->keyframe || s->always_reset){
+ ff_snow_reset_contexts(s);
+ s->last_spatial_decomposition_type=
+ s->last_qlog=
+ s->last_qbias=
+ s->last_mv_scale=
+ s->last_block_max_depth= 0;
+ for(plane_index=0; plane_index<2; plane_index++){
+ Plane *p= &s->plane[plane_index];
+ p->last_htaps=0;
+ p->last_diag_mc=0;
+ memset(p->last_hcoeff, 0, sizeof(p->last_hcoeff));
+ }
+ }
+ if(s->keyframe){
+ put_symbol(&s->c, s->header_state, s->version, 0);
+ put_rac(&s->c, s->header_state, s->always_reset);
+ put_symbol(&s->c, s->header_state, s->temporal_decomposition_type, 0);
+ put_symbol(&s->c, s->header_state, s->temporal_decomposition_count, 0);
+ put_symbol(&s->c, s->header_state, s->spatial_decomposition_count, 0);
+ put_symbol(&s->c, s->header_state, s->colorspace_type, 0);
+ if (s->nb_planes > 2) {
+ put_symbol(&s->c, s->header_state, s->chroma_h_shift, 0);
+ put_symbol(&s->c, s->header_state, s->chroma_v_shift, 0);
+ }
+ put_rac(&s->c, s->header_state, s->spatial_scalability);
+// put_rac(&s->c, s->header_state, s->rate_scalability);
+ put_symbol(&s->c, s->header_state, s->max_ref_frames-1, 0);
+
+ encode_qlogs(s);
+ }
+
+ if(!s->keyframe){
+ int update_mc=0;
+ for(plane_index=0; plane_index<FFMIN(s->nb_planes, 2); plane_index++){
+ Plane *p= &s->plane[plane_index];
+ update_mc |= p->last_htaps != p->htaps;
+ update_mc |= p->last_diag_mc != p->diag_mc;
+ update_mc |= !!memcmp(p->last_hcoeff, p->hcoeff, sizeof(p->hcoeff));
+ }
+ put_rac(&s->c, s->header_state, update_mc);
+ if(update_mc){
+ for(plane_index=0; plane_index<FFMIN(s->nb_planes, 2); plane_index++){
+ Plane *p= &s->plane[plane_index];
+ put_rac(&s->c, s->header_state, p->diag_mc);
+ put_symbol(&s->c, s->header_state, p->htaps/2-1, 0);
+ for(i= p->htaps/2; i; i--)
+ put_symbol(&s->c, s->header_state, FFABS(p->hcoeff[i]), 0);
+ }
+ }
+ if(s->last_spatial_decomposition_count != s->spatial_decomposition_count){
+ put_rac(&s->c, s->header_state, 1);
+ put_symbol(&s->c, s->header_state, s->spatial_decomposition_count, 0);
+ encode_qlogs(s);
+ }else
+ put_rac(&s->c, s->header_state, 0);
+ }
+
+ put_symbol(&s->c, s->header_state, s->spatial_decomposition_type - s->last_spatial_decomposition_type, 1);
+ put_symbol(&s->c, s->header_state, s->qlog - s->last_qlog , 1);
+ put_symbol(&s->c, s->header_state, s->mv_scale - s->last_mv_scale, 1);
+ put_symbol(&s->c, s->header_state, s->qbias - s->last_qbias , 1);
+ put_symbol(&s->c, s->header_state, s->block_max_depth - s->last_block_max_depth, 1);
+
+}
+
+static void update_last_header_values(SnowContext *s){
+ int plane_index;
+
+ if(!s->keyframe){
+ for(plane_index=0; plane_index<2; plane_index++){
+ Plane *p= &s->plane[plane_index];
+ p->last_diag_mc= p->diag_mc;
+ p->last_htaps = p->htaps;
+ memcpy(p->last_hcoeff, p->hcoeff, sizeof(p->hcoeff));
+ }
+ }
+
+ s->last_spatial_decomposition_type = s->spatial_decomposition_type;
+ s->last_qlog = s->qlog;
+ s->last_qbias = s->qbias;
+ s->last_mv_scale = s->mv_scale;
+ s->last_block_max_depth = s->block_max_depth;
+ s->last_spatial_decomposition_count = s->spatial_decomposition_count;
+}
+
+static int qscale2qlog(int qscale){
+ return rint(QROOT*log2(qscale / (float)FF_QP2LAMBDA))
+ + 61*QROOT/8; ///< 64 > 60
+}
+
+static int ratecontrol_1pass(SnowContext *s, AVFrame *pict)
+{
+ /* Estimate the frame's complexity as a sum of weighted dwt coefficients.
+ * FIXME we know exact mv bits at this point,
+ * but ratecontrol isn't set up to include them. */
+ uint32_t coef_sum= 0;
+ int level, orientation, delta_qlog;
+
+ for(level=0; level<s->spatial_decomposition_count; level++){
+ for(orientation=level ? 1 : 0; orientation<4; orientation++){
+ SubBand *b= &s->plane[0].band[level][orientation];
+ IDWTELEM *buf= b->ibuf;
+ const int w= b->width;
+ const int h= b->height;
+ const int stride= b->stride;
+ const int qlog= av_clip(2*QROOT + b->qlog, 0, QROOT*16);
+ const int qmul= ff_qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT);
+ const int qdiv= (1<<16)/qmul;
+ int x, y;
+ //FIXME this is ugly
+ for(y=0; y<h; y++)
+ for(x=0; x<w; x++)
+ buf[x+y*stride]= b->buf[x+y*stride];
+ if(orientation==0)
+ decorrelate(s, b, buf, stride, 1, 0);
+ for(y=0; y<h; y++)
+ for(x=0; x<w; x++)
+ coef_sum+= abs(buf[x+y*stride]) * qdiv >> 16;
+ }
+ }
+
+ /* ugly, ratecontrol just takes a sqrt again */
+ av_assert0(coef_sum < INT_MAX);
+ coef_sum = (uint64_t)coef_sum * coef_sum >> 16;
+
+ if(pict->pict_type == AV_PICTURE_TYPE_I){
+ s->m.current_picture.mb_var_sum= coef_sum;
+ s->m.current_picture.mc_mb_var_sum= 0;
+ }else{
+ s->m.current_picture.mc_mb_var_sum= coef_sum;
+ s->m.current_picture.mb_var_sum= 0;
+ }
+
+ pict->quality= ff_rate_estimate_qscale(&s->m, 1);
+ if (pict->quality < 0)
+ return INT_MIN;
+ s->lambda= pict->quality * 3/2;
+ delta_qlog= qscale2qlog(pict->quality) - s->qlog;
+ s->qlog+= delta_qlog;
+ return delta_qlog;
+}
+
+static void calculate_visual_weight(SnowContext *s, Plane *p){
+ int width = p->width;
+ int height= p->height;
+ int level, orientation, x, y;
+
+ for(level=0; level<s->spatial_decomposition_count; level++){
+ for(orientation=level ? 1 : 0; orientation<4; orientation++){
+ SubBand *b= &p->band[level][orientation];
+ IDWTELEM *ibuf= b->ibuf;
+ int64_t error=0;
+
+ memset(s->spatial_idwt_buffer, 0, sizeof(*s->spatial_idwt_buffer)*width*height);
+ ibuf[b->width/2 + b->height/2*b->stride]= 256*16;
+ ff_spatial_idwt(s->spatial_idwt_buffer, s->temp_idwt_buffer, width, height, width, s->spatial_decomposition_type, s->spatial_decomposition_count);
+ for(y=0; y<height; y++){
+ for(x=0; x<width; x++){
+ int64_t d= s->spatial_idwt_buffer[x + y*width]*16;
+ error += d*d;
+ }
+ }
+
+ b->qlog= (int)(log(352256.0/sqrt(error)) / log(pow(2.0, 1.0/QROOT))+0.5);
+ }
+ }
+}
+
+static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+ const AVFrame *pict, int *got_packet)
+{
+ SnowContext *s = avctx->priv_data;
+ RangeCoder * const c= &s->c;
+ AVFrame *pic = pict;
+ const int width= s->avctx->width;
+ const int height= s->avctx->height;
+ int level, orientation, plane_index, i, y, ret;
+ uint8_t rc_header_bak[sizeof(s->header_state)];
+ uint8_t rc_block_bak[sizeof(s->block_state)];
+
+ if ((ret = ff_alloc_packet2(avctx, pkt, s->b_width*s->b_height*MB_SIZE*MB_SIZE*3 + FF_MIN_BUFFER_SIZE)) < 0)
+ return ret;
+
+ ff_init_range_encoder(c, pkt->data, pkt->size);
+ ff_build_rac_states(c, 0.05*(1LL<<32), 256-8);
+
+ for(i=0; i < s->nb_planes; i++){
+ int hshift= i ? s->chroma_h_shift : 0;
+ int vshift= i ? s->chroma_v_shift : 0;
+ for(y=0; y<(height>>vshift); y++)
+ memcpy(&s->input_picture->data[i][y * s->input_picture->linesize[i]],
+ &pict->data[i][y * pict->linesize[i]],
+ width>>hshift);
++ s->mpvencdsp.draw_edges(s->input_picture->data[i], s->input_picture->linesize[i],
++ width >> hshift, height >> vshift,
++ EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift,
++ EDGE_TOP | EDGE_BOTTOM);
+
+ }
+ emms_c();
+ s->new_picture = pict;
+
+ s->m.picture_number= avctx->frame_number;
+ if(avctx->flags&CODEC_FLAG_PASS2){
+ s->m.pict_type = pic->pict_type = s->m.rc_context.entry[avctx->frame_number].new_pict_type;
+ s->keyframe = pic->pict_type == AV_PICTURE_TYPE_I;
+ if(!(avctx->flags&CODEC_FLAG_QSCALE)) {
+ pic->quality = ff_rate_estimate_qscale(&s->m, 0);
+ if (pic->quality < 0)
+ return -1;
+ }
+ }else{
+ s->keyframe= avctx->gop_size==0 || avctx->frame_number % avctx->gop_size == 0;
+ s->m.pict_type = pic->pict_type = s->keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P;
+ }
+
+ if(s->pass1_rc && avctx->frame_number == 0)
+ pic->quality = 2*FF_QP2LAMBDA;
+ if (pic->quality) {
+ s->qlog = qscale2qlog(pic->quality);
+ s->lambda = pic->quality * 3/2;
+ }
+ if (s->qlog < 0 || (!pic->quality && (avctx->flags & CODEC_FLAG_QSCALE))) {
+ s->qlog= LOSSLESS_QLOG;
+ s->lambda = 0;
+ }//else keep previous frame's qlog until after motion estimation
+
+ ff_snow_frame_start(s);
+ avctx->coded_frame= s->current_picture;
+
+ s->m.current_picture_ptr= &s->m.current_picture;
+ s->m.current_picture.f = s->current_picture;
+ s->m.current_picture.f->pts = pict->pts;
+ if(pic->pict_type == AV_PICTURE_TYPE_P){
+ int block_width = (width +15)>>4;
+ int block_height= (height+15)>>4;
+ int stride= s->current_picture->linesize[0];
+
+ av_assert0(s->current_picture->data[0]);
+ av_assert0(s->last_picture[0]->data[0]);
+
+ s->m.avctx= s->avctx;
+ s->m. last_picture.f = s->last_picture[0];
+ s->m. new_picture.f = s->input_picture;
+ s->m. last_picture_ptr= &s->m. last_picture;
+ s->m.linesize = stride;
+ s->m.uvlinesize= s->current_picture->linesize[1];
+ s->m.width = width;
+ s->m.height= height;
+ s->m.mb_width = block_width;
+ s->m.mb_height= block_height;
+ s->m.mb_stride= s->m.mb_width+1;
+ s->m.b8_stride= 2*s->m.mb_width+1;
+ s->m.f_code=1;
+ s->m.pict_type = pic->pict_type;
+ s->m.me_method= s->avctx->me_method;
+ s->m.me.scene_change_score=0;
+ s->m.flags= s->avctx->flags;
+ s->m.quarter_sample= (s->avctx->flags & CODEC_FLAG_QPEL)!=0;
+ s->m.out_format= FMT_H263;
+ s->m.unrestricted_mv= 1;
+
+ s->m.lambda = s->lambda;
+ s->m.qscale= (s->m.lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
+ s->lambda2= s->m.lambda2= (s->m.lambda*s->m.lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
+
+ s->m.dsp= s->dsp; //move
+ s->m.qdsp= s->qdsp; //move
+ s->m.hdsp = s->hdsp;
+ ff_init_me(&s->m);
+ s->hdsp = s->m.hdsp;
+ s->dsp= s->m.dsp;
+ }
+
+ if(s->pass1_rc){
+ memcpy(rc_header_bak, s->header_state, sizeof(s->header_state));
+ memcpy(rc_block_bak, s->block_state, sizeof(s->block_state));
+ }
+
+redo_frame:
+
+ s->spatial_decomposition_count= 5;
+
+ while( !(width >>(s->chroma_h_shift + s->spatial_decomposition_count))
+ || !(height>>(s->chroma_v_shift + s->spatial_decomposition_count)))
+ s->spatial_decomposition_count--;
+
+ if (s->spatial_decomposition_count <= 0) {
+ av_log(avctx, AV_LOG_ERROR, "Resolution too low\n");
+ return AVERROR(EINVAL);
+ }
+
+ s->m.pict_type = pic->pict_type;
+ s->qbias = pic->pict_type == AV_PICTURE_TYPE_P ? 2 : 0;
+
+ ff_snow_common_init_after_header(avctx);
+
+ if(s->last_spatial_decomposition_count != s->spatial_decomposition_count){
+ for(plane_index=0; plane_index < s->nb_planes; plane_index++){
+ calculate_visual_weight(s, &s->plane[plane_index]);
+ }
+ }
+
+ encode_header(s);
+ s->m.misc_bits = 8*(s->c.bytestream - s->c.bytestream_start);
+ encode_blocks(s, 1);
+ s->m.mv_bits = 8*(s->c.bytestream - s->c.bytestream_start) - s->m.misc_bits;
+
+ for(plane_index=0; plane_index < s->nb_planes; plane_index++){
+ Plane *p= &s->plane[plane_index];
+ int w= p->width;
+ int h= p->height;
+ int x, y;
+// int bits= put_bits_count(&s->c.pb);
+
+ if (!s->memc_only) {
+ //FIXME optimize
+ if(pict->data[plane_index]) //FIXME gray hack
+ for(y=0; y<h; y++){
+ for(x=0; x<w; x++){
+ s->spatial_idwt_buffer[y*w + x]= pict->data[plane_index][y*pict->linesize[plane_index] + x]<<FRAC_BITS;
+ }
+ }
+ predict_plane(s, s->spatial_idwt_buffer, plane_index, 0);
+
+ if( plane_index==0
+ && pic->pict_type == AV_PICTURE_TYPE_P
+ && !(avctx->flags&CODEC_FLAG_PASS2)
+ && s->m.me.scene_change_score > s->avctx->scenechange_threshold){
+ ff_init_range_encoder(c, pkt->data, pkt->size);
+ ff_build_rac_states(c, 0.05*(1LL<<32), 256-8);
+ pic->pict_type= AV_PICTURE_TYPE_I;
+ s->keyframe=1;
+ s->current_picture->key_frame=1;
+ goto redo_frame;
+ }
+
+ if(s->qlog == LOSSLESS_QLOG){
+ for(y=0; y<h; y++){
+ for(x=0; x<w; x++){
+ s->spatial_dwt_buffer[y*w + x]= (s->spatial_idwt_buffer[y*w + x] + (1<<(FRAC_BITS-1))-1)>>FRAC_BITS;
+ }
+ }
+ }else{
+ for(y=0; y<h; y++){
+ for(x=0; x<w; x++){
+ s->spatial_dwt_buffer[y*w + x]=s->spatial_idwt_buffer[y*w + x]<<ENCODER_EXTRA_BITS;
+ }
+ }
+ }
+
+ ff_spatial_dwt(s->spatial_dwt_buffer, s->temp_dwt_buffer, w, h, w, s->spatial_decomposition_type, s->spatial_decomposition_count);
+
+ if(s->pass1_rc && plane_index==0){
+ int delta_qlog = ratecontrol_1pass(s, pic);
+ if (delta_qlog <= INT_MIN)
+ return -1;
+ if(delta_qlog){
+ //reordering qlog in the bitstream would eliminate this reset
+ ff_init_range_encoder(c, pkt->data, pkt->size);
+ memcpy(s->header_state, rc_header_bak, sizeof(s->header_state));
+ memcpy(s->block_state, rc_block_bak, sizeof(s->block_state));
+ encode_header(s);
+ encode_blocks(s, 0);
+ }
+ }
+
+ for(level=0; level<s->spatial_decomposition_count; level++){
+ for(orientation=level ? 1 : 0; orientation<4; orientation++){
+ SubBand *b= &p->band[level][orientation];
+
+ quantize(s, b, b->ibuf, b->buf, b->stride, s->qbias);
+ if(orientation==0)
+ decorrelate(s, b, b->ibuf, b->stride, pic->pict_type == AV_PICTURE_TYPE_P, 0);
+ if (!s->no_bitstream)
+ encode_subband(s, b, b->ibuf, b->parent ? b->parent->ibuf : NULL, b->stride, orientation);
+ av_assert0(b->parent==NULL || b->parent->stride == b->stride*2);
+ if(orientation==0)
+ correlate(s, b, b->ibuf, b->stride, 1, 0);
+ }
+ }
+
+ for(level=0; level<s->spatial_decomposition_count; level++){
+ for(orientation=level ? 1 : 0; orientation<4; orientation++){
+ SubBand *b= &p->band[level][orientation];
+
+ dequantize(s, b, b->ibuf, b->stride);
+ }
+ }
+
+ ff_spatial_idwt(s->spatial_idwt_buffer, s->temp_idwt_buffer, w, h, w, s->spatial_decomposition_type, s->spatial_decomposition_count);
+ if(s->qlog == LOSSLESS_QLOG){
+ for(y=0; y<h; y++){
+ for(x=0; x<w; x++){
+ s->spatial_idwt_buffer[y*w + x]<<=FRAC_BITS;
+ }
+ }
+ }
+ predict_plane(s, s->spatial_idwt_buffer, plane_index, 1);
+ }else{
+ //ME/MC only
+ if(pic->pict_type == AV_PICTURE_TYPE_I){
+ for(y=0; y<h; y++){
+ for(x=0; x<w; x++){
+ s->current_picture->data[plane_index][y*s->current_picture->linesize[plane_index] + x]=
+ pict->data[plane_index][y*pict->linesize[plane_index] + x];
+ }
+ }
+ }else{
+ memset(s->spatial_idwt_buffer, 0, sizeof(IDWTELEM)*w*h);
+ predict_plane(s, s->spatial_idwt_buffer, plane_index, 1);
+ }
+ }
+ if(s->avctx->flags&CODEC_FLAG_PSNR){
+ int64_t error= 0;
+
+ if(pict->data[plane_index]) //FIXME gray hack
+ for(y=0; y<h; y++){
+ for(x=0; x<w; x++){
+ int d= s->current_picture->data[plane_index][y*s->current_picture->linesize[plane_index] + x] - pict->data[plane_index][y*pict->linesize[plane_index] + x];
+ error += d*d;
+ }
+ }
+ s->avctx->error[plane_index] += error;
+ s->current_picture->error[plane_index] = error;
+ }
+
+ }
+
+ update_last_header_values(s);
+
+ ff_snow_release_buffer(avctx);
+
+ s->current_picture->coded_picture_number = avctx->frame_number;
+ s->current_picture->pict_type = pict->pict_type;
+ s->current_picture->quality = pict->quality;
+ s->m.frame_bits = 8*(s->c.bytestream - s->c.bytestream_start);
+ s->m.p_tex_bits = s->m.frame_bits - s->m.misc_bits - s->m.mv_bits;
+ s->m.current_picture.f->display_picture_number =
+ s->m.current_picture.f->coded_picture_number = avctx->frame_number;
+ s->m.current_picture.f->quality = pic->quality;
+ s->m.total_bits += 8*(s->c.bytestream - s->c.bytestream_start);
+ if(s->pass1_rc)
+ if (ff_rate_estimate_qscale(&s->m, 0) < 0)
+ return -1;
+ if(avctx->flags&CODEC_FLAG_PASS1)
+ ff_write_pass1_stats(&s->m);
+ s->m.last_pict_type = s->m.pict_type;
+ avctx->frame_bits = s->m.frame_bits;
+ avctx->mv_bits = s->m.mv_bits;
+ avctx->misc_bits = s->m.misc_bits;
+ avctx->p_tex_bits = s->m.p_tex_bits;
+
+ emms_c();
+
+ pkt->size = ff_rac_terminate(c);
+ if (avctx->coded_frame->key_frame)
+ pkt->flags |= AV_PKT_FLAG_KEY;
+ *got_packet = 1;
+
+ return 0;
+}
+
+static av_cold int encode_end(AVCodecContext *avctx)
+{
+ SnowContext *s = avctx->priv_data;
+
+ ff_snow_common_end(s);
+ ff_rate_control_uninit(&s->m);
+ av_frame_free(&s->input_picture);
+ av_free(avctx->stats_out);
+
+ return 0;
+}
+
+#define OFFSET(x) offsetof(SnowContext, x)
+#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
+static const AVOption options[] = {
+ { "memc_only", "Only do ME/MC (I frames -> ref, P frame -> ME+MC).", OFFSET(memc_only), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
+ { "no_bitstream", "Skip final bitstream writeout.", OFFSET(no_bitstream), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
+ { NULL },
+};
+
+static const AVClass snowenc_class = {
+ .class_name = "snow encoder",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_snow_encoder = {
+ .name = "snow",
+ .long_name = NULL_IF_CONFIG_SMALL("Snow"),
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_SNOW,
+ .priv_data_size = sizeof(SnowContext),
+ .init = encode_init,
+ .encode2 = encode_frame,
+ .close = encode_end,
+ .pix_fmts = (const enum AVPixelFormat[]){
+ AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV444P,
+ AV_PIX_FMT_GRAY8,
+ AV_PIX_FMT_NONE
+ },
+ .priv_class = &snowenc_class,
+};
+
+
+#ifdef TEST
+#undef malloc
+#undef free
+#undef printf
+
+#include "libavutil/lfg.h"
+#include "libavutil/mathematics.h"
+
+int main(void){
+#define width 256
+#define height 256
+ int buffer[2][width*height];
+ SnowContext s;
+ int i;
+ AVLFG prng;
+ s.spatial_decomposition_count=6;
+ s.spatial_decomposition_type=1;
+
+ s.temp_dwt_buffer = av_mallocz(width * sizeof(DWTELEM));
+ s.temp_idwt_buffer = av_mallocz(width * sizeof(IDWTELEM));
+
+ av_lfg_init(&prng, 1);
+
+ printf("testing 5/3 DWT\n");
+ for(i=0; i<width*height; i++)
+ buffer[0][i] = buffer[1][i] = av_lfg_get(&prng) % 54321 - 12345;
+
+ ff_spatial_dwt(buffer[0], s.temp_dwt_buffer, width, height, width, s.spatial_decomposition_type, s.spatial_decomposition_count);
+ ff_spatial_idwt((IDWTELEM*)buffer[0], s.temp_idwt_buffer, width, height, width, s.spatial_decomposition_type, s.spatial_decomposition_count);
+
+ for(i=0; i<width*height; i++)
+ if(buffer[0][i]!= buffer[1][i]) printf("fsck: %6d %12d %7d\n",i, buffer[0][i], buffer[1][i]);
+
+ printf("testing 9/7 DWT\n");
+ s.spatial_decomposition_type=0;
+ for(i=0; i<width*height; i++)
+ buffer[0][i] = buffer[1][i] = av_lfg_get(&prng) % 54321 - 12345;
+
+ ff_spatial_dwt(buffer[0], s.temp_dwt_buffer, width, height, width, s.spatial_decomposition_type, s.spatial_decomposition_count);
+ ff_spatial_idwt((IDWTELEM*)buffer[0], s.temp_idwt_buffer, width, height, width, s.spatial_decomposition_type, s.spatial_decomposition_count);
+
+ for(i=0; i<width*height; i++)
+ if(FFABS(buffer[0][i] - buffer[1][i])>20) printf("fsck: %6d %12d %7d\n",i, buffer[0][i], buffer[1][i]);
+
+ {
+ int level, orientation, x, y;
+ int64_t errors[8][4];
+ int64_t g=0;
+
+ memset(errors, 0, sizeof(errors));
+ s.spatial_decomposition_count=3;
+ s.spatial_decomposition_type=0;
+ for(level=0; level<s.spatial_decomposition_count; level++){
+ for(orientation=level ? 1 : 0; orientation<4; orientation++){
+ int w= width >> (s.spatial_decomposition_count-level);
+ int h= height >> (s.spatial_decomposition_count-level);
+ int stride= width << (s.spatial_decomposition_count-level);
+ DWTELEM *buf= buffer[0];
+ int64_t error=0;
+
+ if(orientation&1) buf+=w;
+ if(orientation>1) buf+=stride>>1;
+
+ memset(buffer[0], 0, sizeof(int)*width*height);
+ buf[w/2 + h/2*stride]= 256*256;
+ ff_spatial_idwt((IDWTELEM*)buffer[0], s.temp_idwt_buffer, width, height, width, s.spatial_decomposition_type, s.spatial_decomposition_count);
+ for(y=0; y<height; y++){
+ for(x=0; x<width; x++){
+ int64_t d= buffer[0][x + y*width];
+ error += d*d;
+ if(FFABS(width/2-x)<9 && FFABS(height/2-y)<9 && level==2) printf("%8"PRId64" ", d);
+ }
+ if(FFABS(height/2-y)<9 && level==2) printf("\n");
+ }
+ error= (int)(sqrt(error)+0.5);
+ errors[level][orientation]= error;
+ if(g) g=av_gcd(g, error);
+ else g= error;
+ }
+ }
+ printf("static int const visual_weight[][4]={\n");
+ for(level=0; level<s.spatial_decomposition_count; level++){
+ printf(" {");
+ for(orientation=0; orientation<4; orientation++){
+ printf("%8"PRId64",", errors[level][orientation]/g);
+ }
+ printf("},\n");
+ }
+ printf("};\n");
+ {
+ int level=2;
+ int w= width >> (s.spatial_decomposition_count-level);
+ //int h= height >> (s.spatial_decomposition_count-level);
+ int stride= width << (s.spatial_decomposition_count-level);
+ DWTELEM *buf= buffer[0];
+ int64_t error=0;
+
+ buf+=w;
+ buf+=stride>>1;
+
+ memset(buffer[0], 0, sizeof(int)*width*height);
+ for(y=0; y<height; y++){
+ for(x=0; x<width; x++){
+ int tab[4]={0,2,3,1};
+ buffer[0][x+width*y]= 256*256*tab[(x&1) + 2*(y&1)];
+ }
+ }
+ ff_spatial_dwt(buffer[0], s.temp_dwt_buffer, width, height, width, s.spatial_decomposition_type, s.spatial_decomposition_count);
+ for(y=0; y<height; y++){
+ for(x=0; x<width; x++){
+ int64_t d= buffer[0][x + y*width];
+ error += d*d;
+ if(FFABS(width/2-x)<9 && FFABS(height/2-y)<9) printf("%8"PRId64" ", d);
+ }
+ if(FFABS(height/2-y)<9) printf("\n");
+ }
+ }
+
+ }
+ return 0;
+}
+#endif /* TEST */
#include "avcodec.h"
#include "dsputil.h"
#include "libavutil/opt.h"
+ #include "mpegvideo.h"
#include "thread.h"
+#include "frame_thread_encoder.h"
#include "internal.h"
+#include "raw.h"
#include "bytestream.h"
#include "version.h"
#include <stdlib.h>
OBJS-$(CONFIG_VP7_DECODER) += x86/vp8dsp_init.o
OBJS-$(CONFIG_VP8_DECODER) += x86/vp8dsp_init.o
OBJS-$(CONFIG_VP9_DECODER) += x86/vp9dsp_init.o
+OBJS-$(CONFIG_WEBP_DECODER) += x86/vp8dsp_init.o
- MMX-OBJS-$(CONFIG_DSPUTIL) += x86/dsputil_mmx.o
-MMX-OBJS-$(CONFIG_AUDIODSP) += x86/audiodsp_mmx.o
+MMX-OBJS-$(CONFIG_DIRAC_DECODER) += x86/dirac_dwt.o
MMX-OBJS-$(CONFIG_ENCODERS) += x86/fdct.o
-MMX-OBJS-$(CONFIG_HPELDSP) += x86/fpel_mmx.o \
- x86/hpeldsp_mmx.o
MMX-OBJS-$(CONFIG_IDCTDSP) += x86/idctdsp_mmx.o \
x86/idct_mmx_xvid.o \
x86/idct_sse2_xvid.o \
unsigned high_bit_depth);
void ff_dsputil_init_pix_mmx(DSPContext *c, AVCodecContext *avctx);
- void ff_draw_edges_mmx(uint8_t *buf, int wrap, int width, int height,
- int w, int h, int sides);
-
+
+void ff_mmx_idct(int16_t *block);
+void ff_mmxext_idct(int16_t *block);
#endif /* AVCODEC_X86_DSPUTIL_X86_H */
*/
#include "libavutil/attributes.h"
++#include "libavutil/avassert.h"
#include "libavutil/cpu.h"
#include "libavutil/x86/cpu.h"
#include "libavcodec/avcodec.h"
#undef PHADDD
#endif /* HAVE_SSSE3_INLINE */
- } else {
+ /* Draw the edges of width 'w' of an image of size width, height
+ * this MMX version can only handle w == 8 || w == 16. */
+ static void draw_edges_mmx(uint8_t *buf, int wrap, int width, int height,
+ int w, int h, int sides)
+ {
+ uint8_t *ptr, *last_line;
+ int i;
+
+ last_line = buf + (height - 1) * wrap;
+ /* left and right */
+ ptr = buf;
+ if (w == 8) {
+ __asm__ volatile (
+ "1: \n\t"
+ "movd (%0), %%mm0 \n\t"
+ "punpcklbw %%mm0, %%mm0 \n\t"
+ "punpcklwd %%mm0, %%mm0 \n\t"
+ "punpckldq %%mm0, %%mm0 \n\t"
+ "movq %%mm0, -8(%0) \n\t"
+ "movq -8(%0, %2), %%mm1 \n\t"
+ "punpckhbw %%mm1, %%mm1 \n\t"
+ "punpckhwd %%mm1, %%mm1 \n\t"
+ "punpckhdq %%mm1, %%mm1 \n\t"
+ "movq %%mm1, (%0, %2) \n\t"
+ "add %1, %0 \n\t"
+ "cmp %3, %0 \n\t"
+ "jb 1b \n\t"
+ : "+r" (ptr)
+ : "r" ((x86_reg) wrap), "r" ((x86_reg) width),
+ "r" (ptr + wrap * height));
++ } else if (w == 16) {
+ __asm__ volatile (
+ "1: \n\t"
+ "movd (%0), %%mm0 \n\t"
+ "punpcklbw %%mm0, %%mm0 \n\t"
+ "punpcklwd %%mm0, %%mm0 \n\t"
+ "punpckldq %%mm0, %%mm0 \n\t"
+ "movq %%mm0, -8(%0) \n\t"
+ "movq %%mm0, -16(%0) \n\t"
+ "movq -8(%0, %2), %%mm1 \n\t"
+ "punpckhbw %%mm1, %%mm1 \n\t"
+ "punpckhwd %%mm1, %%mm1 \n\t"
+ "punpckhdq %%mm1, %%mm1 \n\t"
+ "movq %%mm1, (%0, %2) \n\t"
+ "movq %%mm1, 8(%0, %2) \n\t"
+ "add %1, %0 \n\t"
+ "cmp %3, %0 \n\t"
+ "jb 1b \n\t"
++ : "+r"(ptr)
++ : "r"((x86_reg)wrap), "r"((x86_reg)width), "r"(ptr + wrap * height)
++ );
++ } else {
++ av_assert1(w == 4);
++ __asm__ volatile (
++ "1: \n\t"
++ "movd (%0), %%mm0 \n\t"
++ "punpcklbw %%mm0, %%mm0 \n\t"
++ "punpcklwd %%mm0, %%mm0 \n\t"
++ "movd %%mm0, -4(%0) \n\t"
++ "movd -4(%0, %2), %%mm1 \n\t"
++ "punpcklbw %%mm1, %%mm1 \n\t"
++ "punpckhwd %%mm1, %%mm1 \n\t"
++ "punpckhdq %%mm1, %%mm1 \n\t"
++ "movd %%mm1, (%0, %2) \n\t"
++ "add %1, %0 \n\t"
++ "cmp %3, %0 \n\t"
++ "jb 1b \n\t"
+ : "+r" (ptr)
+ : "r" ((x86_reg) wrap), "r" ((x86_reg) width),
+ "r" (ptr + wrap * height));
+ }
+
+ /* top and bottom (and hopefully also the corners) */
+ if (sides & EDGE_TOP) {
+ for (i = 0; i < h; i += 4) {
+ ptr = buf - (i + 1) * wrap - w;
+ __asm__ volatile (
+ "1: \n\t"
+ "movq (%1, %0), %%mm0 \n\t"
+ "movq %%mm0, (%0) \n\t"
+ "movq %%mm0, (%0, %2) \n\t"
+ "movq %%mm0, (%0, %2, 2) \n\t"
+ "movq %%mm0, (%0, %3) \n\t"
+ "add $8, %0 \n\t"
+ "cmp %4, %0 \n\t"
+ "jb 1b \n\t"
+ : "+r" (ptr)
+ : "r" ((x86_reg) buf - (x86_reg) ptr - w),
+ "r" ((x86_reg) - wrap), "r" ((x86_reg) - wrap * 3),
+ "r" (ptr + width + 2 * w));
+ }
+ }
+
+ if (sides & EDGE_BOTTOM) {
+ for (i = 0; i < h; i += 4) {
+ ptr = last_line + (i + 1) * wrap - w;
+ __asm__ volatile (
+ "1: \n\t"
+ "movq (%1, %0), %%mm0 \n\t"
+ "movq %%mm0, (%0) \n\t"
+ "movq %%mm0, (%0, %2) \n\t"
+ "movq %%mm0, (%0, %2, 2) \n\t"
+ "movq %%mm0, (%0, %3) \n\t"
+ "add $8, %0 \n\t"
+ "cmp %4, %0 \n\t"
+ "jb 1b \n\t"
+ : "+r" (ptr)
+ : "r" ((x86_reg) last_line - (x86_reg) ptr - w),
+ "r" ((x86_reg) wrap), "r" ((x86_reg) wrap * 3),
+ "r" (ptr + width + 2 * w));
+ }
+ }
+ }
+
#endif /* HAVE_INLINE_ASM */
av_cold void ff_mpegvideoencdsp_init_x86(MpegvideoEncDSPContext *c,
projects / ffmpeg / commitdiff