/*
* VC3/DNxHD decoder.
- * Copyright (c) 2007 SmartJog S.A., Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>.
+ * Copyright (c) 2007 SmartJog S.A., Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>
+ * Copyright (c) 2011 MirriAd Ltd
*
- * This file is part of FFmpeg.
+ * 10 bit support added by MirriAd Ltd, Joseph Artsimovich <joseph@mirriad.com>
*
- * FFmpeg is free software; you can redistribute it and/or
+ * This file is part of Libav.
+ *
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-//#define TRACE
-//#define DEBUG
-
+#include "libavutil/imgutils.h"
+#include "libavutil/timer.h"
#include "avcodec.h"
-#include "bitstream.h"
+#include "blockdsp.h"
+#include "get_bits.h"
#include "dnxhddata.h"
-#include "dsputil.h"
-#include "mpegvideo.h"
+#include "idctdsp.h"
+#include "internal.h"
+#include "thread.h"
-typedef struct {
- int cid;
- unsigned int width, height;
- int interlaced;
- unsigned int frame_size;
- unsigned int coding_unit_size;
- int index_bits;
- int bit_depth;
- const uint8_t *luma_weigth, *chroma_weigth;
- const uint8_t *dc_codes, *dc_bits;
- const uint16_t *ac_codes;
- const uint8_t *ac_bits, *ac_level;
- const uint8_t *ac_run_flag, *ac_index_flag;
- const uint16_t *run_codes;
- const uint8_t *run_bits, *run;
-} CIDEntry;
-
-typedef struct {
+typedef struct DNXHDContext {
AVCodecContext *avctx;
- AVFrame picture;
GetBitContext gb;
+ BlockDSPContext bdsp;
int cid; ///< compression id
unsigned int width, height;
unsigned int mb_width, mb_height;
int cur_field; ///< current interlaced field
VLC ac_vlc, dc_vlc, run_vlc;
int last_dc[3];
- DSPContext dsp;
- DECLARE_ALIGNED_16(DCTELEM, blocks[8][64]);
- DECLARE_ALIGNED_8(ScanTable, scantable);
+ IDCTDSPContext idsp;
+ DECLARE_ALIGNED(16, int16_t, blocks)[12][64];
+ ScanTable scantable;
const CIDEntry *cid_table;
+ int bit_depth; // 8, 10 or 0 if not initialized at all.
+ int is_444;
+ int mbaff;
+ void (*decode_dct_block)(struct DNXHDContext *ctx, int16_t *block,
+ int n, int qscale);
} DNXHDContext;
-static const CIDEntry cid_table[] = {
- { 1238, 1920, 1080, 0, 917504, 917504, 4, 8,
- dnxhd_1238_luma_weigth, dnxhd_1238_chroma_weigth,
- dnxhd_1238_dc_codes, dnxhd_1238_dc_bits,
- dnxhd_1238_ac_codes, dnxhd_1238_ac_bits, dnxhd_1238_ac_level,
- dnxhd_1238_ac_run_flag, dnxhd_1238_ac_index_flag,
- dnxhd_1238_run_codes, dnxhd_1238_run_bits, dnxhd_1238_run },
-/* { 1243, 1920, 1080, 1, 917504, 458752, 4, 8, */
-/* dnxhd_1243_luma_weigth, dnxhd_1243_chroma_weigth, */
-/* dnxhd_1238_dc_codes, dnxhd_1238_dc_bits, */
-/* dnxhd_1238_ac_codes, dnxhd_1238_ac_bits, dnxhd_1238_ac_level, */
-/* dnxhd_1238_ac_run_flag, dnxhd_1238_ac_index_flag, */
-/* dnxhd_1238_run_codes, dnxhd_1238_run_bits, dnxhd_1238_run }, */
-};
-
-static int dnxhd_get_cid_table(int cid)
-{
- int i;
- for (i = 0; i < sizeof(cid_table)/sizeof(CIDEntry); i++)
- if (cid_table[i].cid == cid)
- return i;
- return -1;
-}
-
#define DNXHD_VLC_BITS 9
-#define DNXHD_DC_VLC_BITS 6
+#define DNXHD_DC_VLC_BITS 7
+
+static void dnxhd_decode_dct_block_8(DNXHDContext *ctx, int16_t *block,
+ int n, int qscale);
+static void dnxhd_decode_dct_block_10(DNXHDContext *ctx, int16_t *block,
+ int n, int qscale);
+static void dnxhd_decode_dct_block_10_444(DNXHDContext *ctx, int16_t *block,
+ int n, int qscale);
-static int dnxhd_decode_init(AVCodecContext *avctx)
+static av_cold int dnxhd_decode_init(AVCodecContext *avctx)
{
DNXHDContext *ctx = avctx->priv_data;
ctx->avctx = avctx;
- dsputil_init(&ctx->dsp, avctx);
- avctx->coded_frame = &ctx->picture;
- ctx->picture.type = FF_I_TYPE;
return 0;
}
static int dnxhd_init_vlc(DNXHDContext *ctx, int cid)
{
- if (!ctx->cid_table) {
+ if (cid != ctx->cid) {
int index;
- if ((index = dnxhd_get_cid_table(cid)) < 0) {
+ if ((index = ff_dnxhd_get_cid_table(cid)) < 0) {
av_log(ctx->avctx, AV_LOG_ERROR, "unsupported cid %d\n", cid);
- return -1;
+ return AVERROR(ENOSYS);
}
- ctx->cid_table = &cid_table[index];
+ ctx->cid_table = &ff_dnxhd_cid_table[index];
+ av_log(ctx->avctx, AV_LOG_VERBOSE, "Profile cid %d.\n", cid);
+
+ ff_free_vlc(&ctx->ac_vlc);
+ ff_free_vlc(&ctx->dc_vlc);
+ ff_free_vlc(&ctx->run_vlc);
+
init_vlc(&ctx->ac_vlc, DNXHD_VLC_BITS, 257,
ctx->cid_table->ac_bits, 1, 1,
ctx->cid_table->ac_codes, 2, 2, 0);
- init_vlc(&ctx->dc_vlc, DNXHD_DC_VLC_BITS, 12,
+ init_vlc(&ctx->dc_vlc, DNXHD_DC_VLC_BITS, ctx->bit_depth + 4,
ctx->cid_table->dc_bits, 1, 1,
ctx->cid_table->dc_codes, 1, 1, 0);
init_vlc(&ctx->run_vlc, DNXHD_VLC_BITS, 62,
ctx->cid_table->run_bits, 1, 1,
ctx->cid_table->run_codes, 2, 2, 0);
- ff_init_scantable(ctx->dsp.idct_permutation, &ctx->scantable, ff_zigzag_direct);
+ ff_init_scantable(ctx->idsp.idct_permutation, &ctx->scantable,
+ ff_zigzag_direct);
+ ctx->cid = cid;
}
return 0;
}
-static int dnxhd_decode_header(DNXHDContext *ctx, uint8_t *buf, int buf_size)
+static int dnxhd_decode_header(DNXHDContext *ctx, AVFrame *frame,
+ const uint8_t *buf, int buf_size,
+ int first_field)
{
- static const uint8_t header_prefix[] = { 0x00, 0x00, 0x02, 0x80, 0x01 };
- int i;
-
- if (buf_size < 0x280)
- return -1;
+ static const uint8_t header_prefix[] = { 0x00, 0x00, 0x02, 0x80, 0x01 };
+ static const uint8_t header_prefix444[] = { 0x00, 0x00, 0x02, 0x80, 0x02 };
+ int i, cid, ret;
+ int old_bit_depth = ctx->bit_depth;
+
+ if (buf_size < 0x280) {
+ av_log(ctx->avctx, AV_LOG_ERROR, "buffer too small (%d < 640).\n",
+ buf_size);
+ return AVERROR_INVALIDDATA;
+ }
- if (memcmp(buf, header_prefix, 5)) {
- av_log(ctx->avctx, AV_LOG_ERROR, "error in header\n");
- return -1;
+ if (memcmp(buf, header_prefix, 5) && memcmp(buf, header_prefix444, 5)) {
+ av_log(ctx->avctx, AV_LOG_ERROR,
+ "unknown header 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X\n",
+ buf[0], buf[1], buf[2], buf[3], buf[4]);
+ return AVERROR_INVALIDDATA;
}
- if (buf[5] & 2) {/* interlaced FIXME top or bottom */
- ctx->picture.interlaced_frame = 1;
- av_log(ctx->avctx, AV_LOG_DEBUG, "interlaced %d\n", buf[5] & 3);
+ if (buf[5] & 2) { /* interlaced */
+ ctx->cur_field = buf[5] & 1;
+ frame->interlaced_frame = 1;
+ frame->top_field_first = first_field ^ ctx->cur_field;
+ av_log(ctx->avctx, AV_LOG_DEBUG,
+ "interlaced %d, cur field %d\n", buf[5] & 3, ctx->cur_field);
}
+ ctx->mbaff = buf[0x6] & 32;
ctx->height = AV_RB16(buf + 0x18);
ctx->width = AV_RB16(buf + 0x1a);
- dprintf(ctx->avctx, "width %d, heigth %d\n", ctx->width, ctx->height);
+ ff_dlog(ctx->avctx, "width %d, height %d\n", ctx->width, ctx->height);
- if (buf[0x21] & 0x80) {
- av_log(ctx->avctx, AV_LOG_ERROR, "10 bit per component\n");
- return -1;
- }
+ if (buf[0x21] == 0x58) { /* 10 bit */
+ ctx->bit_depth = ctx->avctx->bits_per_raw_sample = 10;
- ctx->cid = AV_RB32(buf + 0x28);
- dprintf(ctx->avctx, "compression id %d\n", ctx->cid);
+ if (buf[0x4] == 0x2) {
+ ctx->decode_dct_block = dnxhd_decode_dct_block_10_444;
+ ctx->avctx->pix_fmt = AV_PIX_FMT_YUV444P10;
+ ctx->is_444 = 1;
+ } else {
+ ctx->decode_dct_block = dnxhd_decode_dct_block_10;
+ ctx->avctx->pix_fmt = AV_PIX_FMT_YUV422P10;
+ }
+ } else if (buf[0x21] == 0x38) { /* 8 bit */
+ ctx->bit_depth = ctx->avctx->bits_per_raw_sample = 8;
- if (dnxhd_init_vlc(ctx, ctx->cid) < 0)
- return -1;
+ ctx->avctx->pix_fmt = AV_PIX_FMT_YUV422P;
+ ctx->decode_dct_block = dnxhd_decode_dct_block_8;
+ } else {
+ av_log(ctx->avctx, AV_LOG_ERROR, "invalid bit depth value (%d).\n",
+ buf[0x21]);
+ return AVERROR_INVALIDDATA;
+ }
+ if (ctx->bit_depth != old_bit_depth) {
+ ff_blockdsp_init(&ctx->bdsp, ctx->avctx);
+ ff_idctdsp_init(&ctx->idsp, ctx->avctx);
+ }
+
+ cid = AV_RB32(buf + 0x28);
+ ff_dlog(ctx->avctx, "compression id %d\n", cid);
+
+ if ((ret = dnxhd_init_vlc(ctx, cid)) < 0)
+ return ret;
+ if (ctx->mbaff && ctx->cid_table->cid != 1260)
+ av_log(ctx->avctx, AV_LOG_WARNING,
+ "Adaptive MB interlace flag in an unsupported profile.\n");
+
+ // make sure profile size constraints are respected
+ // DNx100 allows 1920->1440 and 1280->960 subsampling
+ if (ctx->width != ctx->cid_table->width) {
+ av_reduce(&ctx->avctx->sample_aspect_ratio.num,
+ &ctx->avctx->sample_aspect_ratio.den,
+ ctx->width, ctx->cid_table->width, 255);
+ ctx->width = ctx->cid_table->width;
+ }
if (buf_size < ctx->cid_table->coding_unit_size) {
- av_log(ctx->avctx, AV_LOG_ERROR, "incorrect frame size\n");
- return -1;
+ av_log(ctx->avctx, AV_LOG_ERROR, "incorrect frame size (%d < %d).\n",
+ buf_size, ctx->cid_table->coding_unit_size);
+ return AVERROR_INVALIDDATA;
}
- ctx->mb_width = ctx->width>>4;
+ ctx->mb_width = ctx->width >> 4;
ctx->mb_height = buf[0x16d];
- if (ctx->mb_height > 68) {
- av_log(ctx->avctx, AV_LOG_ERROR, "mb height too big\n");
- return -1;
+ ff_dlog(ctx->avctx,
+ "mb width %d, mb height %d\n", ctx->mb_width, ctx->mb_height);
+
+ if ((ctx->height + 15) >> 4 == ctx->mb_height && frame->interlaced_frame)
+ ctx->height <<= 1;
+
+ if (ctx->mb_height > 68 ||
+ (ctx->mb_height << frame->interlaced_frame) > (ctx->height + 15) >> 4) {
+ av_log(ctx->avctx, AV_LOG_ERROR,
+ "mb height too big: %d\n", ctx->mb_height);
+ return AVERROR_INVALIDDATA;
}
- dprintf(ctx->avctx, "mb width %d, mb height %d\n", ctx->mb_width, ctx->mb_height);
for (i = 0; i < ctx->mb_height; i++) {
- ctx->mb_scan_index[i] = AV_RB32(buf + 0x170 + (i<<2));
- dprintf(ctx->avctx, "mb scan index %d\n", ctx->mb_scan_index[i]);
+ ctx->mb_scan_index[i] = AV_RB32(buf + 0x170 + (i << 2));
+ ff_dlog(ctx->avctx, "mb scan index %d\n", ctx->mb_scan_index[i]);
if (buf_size < ctx->mb_scan_index[i] + 0x280) {
- av_log(ctx->avctx, AV_LOG_ERROR, "invalid mb scan index\n");
- return -1;
+ av_log(ctx->avctx, AV_LOG_ERROR,
+ "invalid mb scan index (%d < %d).\n",
+ buf_size, ctx->mb_scan_index[i] + 0x280);
+ return AVERROR_INVALIDDATA;
}
}
return 0;
}
-static int dnxhd_decode_dc(DNXHDContext *ctx)
-{
- int len;
-
- len = get_vlc2(&ctx->gb, ctx->dc_vlc.table, DNXHD_DC_VLC_BITS, 1);
- return len ? get_xbits(&ctx->gb, len) : 0;
-}
-
-static void dnxhd_decode_dct_block(DNXHDContext *ctx, DCTELEM *block, int n, int qscale)
+static av_always_inline void dnxhd_decode_dct_block(DNXHDContext *ctx,
+ int16_t *block, int n,
+ int qscale,
+ int index_bits,
+ int level_bias,
+ int level_shift)
{
- int i, j, index, index2;
+ int i, j, index1, index2, len;
int level, component, sign;
- const uint8_t *weigth_matrix;
-
- if (n&2) {
- component = 1 + (n&1);
- weigth_matrix = ctx->cid_table->chroma_weigth;
+ const uint8_t *weight_matrix;
+ OPEN_READER(bs, &ctx->gb);
+
+ if (!ctx->is_444) {
+ if (n & 2) {
+ component = 1 + (n & 1);
+ weight_matrix = ctx->cid_table->chroma_weight;
+ } else {
+ component = 0;
+ weight_matrix = ctx->cid_table->luma_weight;
+ }
} else {
- component = 0;
- weigth_matrix = ctx->cid_table->luma_weigth;
+ component = (n >> 1) % 3;
+ if (component) {
+ weight_matrix = ctx->cid_table->chroma_weight;
+ } else {
+ weight_matrix = ctx->cid_table->luma_weight;
+ }
}
- ctx->last_dc[component] += dnxhd_decode_dc(ctx);
+ UPDATE_CACHE(bs, &ctx->gb);
+ GET_VLC(len, bs, &ctx->gb, ctx->dc_vlc.table, DNXHD_DC_VLC_BITS, 1);
+ if (len) {
+ level = GET_CACHE(bs, &ctx->gb);
+ LAST_SKIP_BITS(bs, &ctx->gb, len);
+ sign = ~level >> 31;
+ level = (NEG_USR32(sign ^ level, len) ^ sign) - sign;
+ ctx->last_dc[component] += level;
+ }
block[0] = ctx->last_dc[component];
- //av_log(ctx->avctx, AV_LOG_DEBUG, "dc %d\n", block[0]);
- for (i = 1; ; i++) {
- index = get_vlc2(&ctx->gb, ctx->ac_vlc.table, DNXHD_VLC_BITS, 2);
- //av_log(ctx->avctx, AV_LOG_DEBUG, "index %d\n", index);
- level = ctx->cid_table->ac_level[index];
- if (!level) { /* EOB */
- //av_log(ctx->avctx, AV_LOG_DEBUG, "EOB\n");
- return;
- }
- sign = get_sbits(&ctx->gb, 1);
- if (ctx->cid_table->ac_index_flag[index]) {
- level += get_bits(&ctx->gb, ctx->cid_table->index_bits)<<6;
+ for (i = 1; ; i++) {
+ UPDATE_CACHE(bs, &ctx->gb);
+ GET_VLC(index1, bs, &ctx->gb, ctx->ac_vlc.table,
+ DNXHD_VLC_BITS, 2);
+ level = ctx->cid_table->ac_level[index1];
+ if (!level) /* EOB */
+ break;
+
+ sign = SHOW_SBITS(bs, &ctx->gb, 1);
+ SKIP_BITS(bs, &ctx->gb, 1);
+
+ if (ctx->cid_table->ac_index_flag[index1]) {
+ level += SHOW_UBITS(bs, &ctx->gb, index_bits) << 6;
+ SKIP_BITS(bs, &ctx->gb, index_bits);
}
- if (ctx->cid_table->ac_run_flag[index]) {
- index2 = get_vlc2(&ctx->gb, ctx->run_vlc.table, DNXHD_VLC_BITS, 2);
+ if (ctx->cid_table->ac_run_flag[index1]) {
+ UPDATE_CACHE(bs, &ctx->gb);
+ GET_VLC(index2, bs, &ctx->gb, ctx->run_vlc.table,
+ DNXHD_VLC_BITS, 2);
i += ctx->cid_table->run[index2];
}
- j = ctx->scantable.permutated[i];
- //av_log(ctx->avctx, AV_LOG_DEBUG, "j %d\n", j);
- //av_log(ctx->avctx, AV_LOG_DEBUG, "level %d, weigth %d\n", level, weigth_matrix[i]);
- level = (2*level+1) * qscale * weigth_matrix[i];
- if (weigth_matrix[i] != 32) // FIXME 10bit
- level += 32;
- level >>= 6;
- level = (level^sign) - sign;
-
if (i > 63) {
av_log(ctx->avctx, AV_LOG_ERROR, "ac tex damaged %d, %d\n", n, i);
- return;
+ break;
}
- //av_log(NULL, AV_LOG_DEBUG, "i %d, j %d, end level %d\n", i, j, level);
- block[j] = level;
+ j = ctx->scantable.permutated[i];
+ level = (2 * level + 1) * qscale * weight_matrix[i];
+ if (level_bias < 32 || weight_matrix[i] != level_bias)
+ level += level_bias;
+ level >>= level_shift;
+
+ block[j] = (level ^ sign) - sign;
}
+
+ CLOSE_READER(bs, &ctx->gb);
+}
+
+static void dnxhd_decode_dct_block_8(DNXHDContext *ctx, int16_t *block,
+ int n, int qscale)
+{
+ dnxhd_decode_dct_block(ctx, block, n, qscale, 4, 32, 6);
+}
+
+static void dnxhd_decode_dct_block_10(DNXHDContext *ctx, int16_t *block,
+ int n, int qscale)
+{
+ dnxhd_decode_dct_block(ctx, block, n, qscale, 6, 8, 4);
}
-static int dnxhd_decode_macroblock(DNXHDContext *ctx, int x, int y)
+static void dnxhd_decode_dct_block_10_444(DNXHDContext *ctx, int16_t *block,
+ int n, int qscale)
{
- int dct_linesize_luma = ctx->picture.linesize[0];
- int dct_linesize_chroma = ctx->picture.linesize[1];
+ dnxhd_decode_dct_block(ctx, block, n, qscale, 6, 32, 6);
+}
+
+static int dnxhd_decode_macroblock(DNXHDContext *ctx, AVFrame *frame,
+ int x, int y)
+{
+ int shift1 = ctx->bit_depth == 10;
+ int dct_linesize_luma = frame->linesize[0];
+ int dct_linesize_chroma = frame->linesize[1];
uint8_t *dest_y, *dest_u, *dest_v;
- int dct_offset;
+ int dct_y_offset, dct_x_offset;
int qscale, i;
+ int interlaced_mb = 0;
- ctx->dsp.clear_blocks(ctx->blocks[0]);
- ctx->dsp.clear_blocks(ctx->blocks[2]); // FIXME change clear blocks to take block amount
-
- qscale = get_bits(&ctx->gb, 11);
+ if (ctx->mbaff) {
+ interlaced_mb = get_bits1(&ctx->gb);
+ qscale = get_bits(&ctx->gb, 10);
+ } else {
+ qscale = get_bits(&ctx->gb, 11);
+ }
skip_bits1(&ctx->gb);
- //av_log(ctx->avctx, AV_LOG_DEBUG, "qscale %d\n", qscale);
for (i = 0; i < 8; i++) {
- dnxhd_decode_dct_block(ctx, ctx->blocks[i], i, qscale);
+ ctx->bdsp.clear_block(ctx->blocks[i]);
+ ctx->decode_dct_block(ctx, ctx->blocks[i], i, qscale);
}
- dest_y = ctx->picture.data[0] + ((y * dct_linesize_luma) << 4) + (x << 4);
- dest_u = ctx->picture.data[1] + ((y * dct_linesize_chroma) << 4) + (x << 3);
- dest_v = ctx->picture.data[2] + ((y * dct_linesize_chroma) << 4) + (x << 3);
-
- dct_offset = dct_linesize_luma << 3;
- ctx->dsp.idct_put(dest_y, dct_linesize_luma, ctx->blocks[0]);
- ctx->dsp.idct_put(dest_y + 8, dct_linesize_luma, ctx->blocks[1]);
- ctx->dsp.idct_put(dest_y + dct_offset, dct_linesize_luma, ctx->blocks[4]);
- ctx->dsp.idct_put(dest_y + dct_offset + 8, dct_linesize_luma, ctx->blocks[5]);
-
- if (!(ctx->avctx->flags & CODEC_FLAG_GRAY)) {
- dct_offset = dct_linesize_chroma << 3;
- ctx->dsp.idct_put(dest_u, dct_linesize_chroma, ctx->blocks[2]);
- ctx->dsp.idct_put(dest_v, dct_linesize_chroma, ctx->blocks[3]);
- ctx->dsp.idct_put(dest_u + dct_offset, dct_linesize_chroma, ctx->blocks[6]);
- ctx->dsp.idct_put(dest_v + dct_offset, dct_linesize_chroma, ctx->blocks[7]);
+ if (ctx->is_444) {
+ for (; i < 12; i++) {
+ ctx->bdsp.clear_block(ctx->blocks[i]);
+ ctx->decode_dct_block(ctx, ctx->blocks[i], i, qscale);
+ }
+ }
+
+ if (frame->interlaced_frame) {
+ dct_linesize_luma <<= 1;
+ dct_linesize_chroma <<= 1;
+ }
+
+ dest_y = frame->data[0] + ((y * dct_linesize_luma) << 4) + (x << (4 + shift1));
+ dest_u = frame->data[1] + ((y * dct_linesize_chroma) << 4) + (x << (3 + shift1 + ctx->is_444));
+ dest_v = frame->data[2] + ((y * dct_linesize_chroma) << 4) + (x << (3 + shift1 + ctx->is_444));
+
+ if (ctx->cur_field) {
+ dest_y += frame->linesize[0];
+ dest_u += frame->linesize[1];
+ dest_v += frame->linesize[2];
+ }
+ if (interlaced_mb) {
+ dct_linesize_luma <<= 1;
+ dct_linesize_chroma <<= 1;
+ }
+
+ dct_y_offset = interlaced_mb ? frame->linesize[0] : (dct_linesize_luma << 3);
+ dct_x_offset = 8 << shift1;
+ if (!ctx->is_444) {
+ ctx->idsp.idct_put(dest_y, dct_linesize_luma, ctx->blocks[0]);
+ ctx->idsp.idct_put(dest_y + dct_x_offset, dct_linesize_luma, ctx->blocks[1]);
+ ctx->idsp.idct_put(dest_y + dct_y_offset, dct_linesize_luma, ctx->blocks[4]);
+ ctx->idsp.idct_put(dest_y + dct_y_offset + dct_x_offset, dct_linesize_luma, ctx->blocks[5]);
+
+ if (!(ctx->avctx->flags & AV_CODEC_FLAG_GRAY)) {
+ dct_y_offset = interlaced_mb ? frame->linesize[1] : (dct_linesize_chroma << 3);
+ ctx->idsp.idct_put(dest_u, dct_linesize_chroma, ctx->blocks[2]);
+ ctx->idsp.idct_put(dest_v, dct_linesize_chroma, ctx->blocks[3]);
+ ctx->idsp.idct_put(dest_u + dct_y_offset, dct_linesize_chroma, ctx->blocks[6]);
+ ctx->idsp.idct_put(dest_v + dct_y_offset, dct_linesize_chroma, ctx->blocks[7]);
+ }
+ } else {
+ ctx->idsp.idct_put(dest_y, dct_linesize_luma, ctx->blocks[0]);
+ ctx->idsp.idct_put(dest_y + dct_x_offset, dct_linesize_luma, ctx->blocks[1]);
+ ctx->idsp.idct_put(dest_y + dct_y_offset, dct_linesize_luma, ctx->blocks[6]);
+ ctx->idsp.idct_put(dest_y + dct_y_offset + dct_x_offset, dct_linesize_luma, ctx->blocks[7]);
+
+ if (!(ctx->avctx->flags & AV_CODEC_FLAG_GRAY)) {
+ dct_y_offset = interlaced_mb ? frame->linesize[1] : (dct_linesize_chroma << 3);
+ ctx->idsp.idct_put(dest_u, dct_linesize_chroma, ctx->blocks[2]);
+ ctx->idsp.idct_put(dest_u + dct_x_offset, dct_linesize_chroma, ctx->blocks[3]);
+ ctx->idsp.idct_put(dest_u + dct_y_offset, dct_linesize_chroma, ctx->blocks[8]);
+ ctx->idsp.idct_put(dest_u + dct_y_offset + dct_x_offset, dct_linesize_chroma, ctx->blocks[9]);
+ ctx->idsp.idct_put(dest_v, dct_linesize_chroma, ctx->blocks[4]);
+ ctx->idsp.idct_put(dest_v + dct_x_offset, dct_linesize_chroma, ctx->blocks[5]);
+ ctx->idsp.idct_put(dest_v + dct_y_offset, dct_linesize_chroma, ctx->blocks[10]);
+ ctx->idsp.idct_put(dest_v + dct_y_offset + dct_x_offset, dct_linesize_chroma, ctx->blocks[11]);
+ }
}
return 0;
}
-static int dnxhd_decode_macroblocks(DNXHDContext *ctx, uint8_t *buf, int buf_size)
+static int dnxhd_decode_macroblocks(DNXHDContext *ctx, AVFrame *frame,
+ const uint8_t *buf, int buf_size)
{
int x, y;
for (y = 0; y < ctx->mb_height; y++) {
ctx->last_dc[0] =
ctx->last_dc[1] =
- ctx->last_dc[2] = 1024; // 1024 for levels +128
+ ctx->last_dc[2] = 1 << (ctx->bit_depth + 2); // for levels +2^(bitdepth-1)
init_get_bits(&ctx->gb, buf + ctx->mb_scan_index[y], (buf_size - ctx->mb_scan_index[y]) << 3);
for (x = 0; x < ctx->mb_width; x++) {
//START_TIMER;
- dnxhd_decode_macroblock(ctx, x, y);
+ dnxhd_decode_macroblock(ctx, frame, x, y);
//STOP_TIMER("decode macroblock");
}
}
return 0;
}
-static int dnxhd_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
- uint8_t *buf, int buf_size)
+static int dnxhd_decode_frame(AVCodecContext *avctx, void *data,
+ int *got_frame, AVPacket *avpkt)
{
+ const uint8_t *buf = avpkt->data;
+ int buf_size = avpkt->size;
DNXHDContext *ctx = avctx->priv_data;
- AVFrame *picture = data;
+ ThreadFrame tf;
+ int first_field = 1;
+ int ret;
+
+ tf.f = data;
+
+ ff_dlog(avctx, "frame size %d\n", buf_size);
- dprintf(avctx, "frame size %d\n", buf_size);
+decode_coding_unit:
+ if ((ret = dnxhd_decode_header(ctx, tf.f, buf, buf_size, first_field)) < 0)
+ return ret;
- if (dnxhd_decode_header(ctx, buf, buf_size) < 0)
- return -1;
+ if ((avctx->width || avctx->height) &&
+ (ctx->width != avctx->width || ctx->height != avctx->height)) {
+ av_log(avctx, AV_LOG_WARNING, "frame size changed: %dx%d -> %dx%d\n",
+ avctx->width, avctx->height, ctx->width, ctx->height);
+ first_field = 1;
+ }
- avctx->pix_fmt = PIX_FMT_YUV422P;
- if (avcodec_check_dimensions(avctx, ctx->width, ctx->height))
- return -1;
- avcodec_set_dimensions(avctx, ctx->width, ctx->height);
+ ret = ff_set_dimensions(avctx, ctx->width, ctx->height);
+ if (ret < 0)
+ return ret;
- if (ctx->picture.data[0])
- avctx->release_buffer(avctx, &ctx->picture);
- if (avctx->get_buffer(avctx, &ctx->picture) < 0) {
- av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
- return -1;
+ if (first_field) {
+ if ((ret = ff_thread_get_buffer(avctx, &tf, 0)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return ret;
+ }
+ tf.f->pict_type = AV_PICTURE_TYPE_I;
+ tf.f->key_frame = 1;
}
- dnxhd_decode_macroblocks(ctx, buf + 0x280, buf_size - 0x280);
+ dnxhd_decode_macroblocks(ctx, tf.f, buf + 0x280, buf_size - 0x280);
+
+ if (first_field && tf.f->interlaced_frame) {
+ buf += ctx->cid_table->coding_unit_size;
+ buf_size -= ctx->cid_table->coding_unit_size;
+ first_field = 0;
+ goto decode_coding_unit;
+ }
- *picture = ctx->picture;
- *data_size = sizeof(AVPicture);
+ *got_frame = 1;
return buf_size;
}
-static int dnxhd_decode_close(AVCodecContext *avctx)
+static av_cold int dnxhd_decode_close(AVCodecContext *avctx)
{
DNXHDContext *ctx = avctx->priv_data;
- if(ctx->picture.data[0])
- avctx->release_buffer(avctx, &ctx->picture);
- free_vlc(&ctx->ac_vlc);
- free_vlc(&ctx->dc_vlc);
- free_vlc(&ctx->run_vlc);
+ ff_free_vlc(&ctx->ac_vlc);
+ ff_free_vlc(&ctx->dc_vlc);
+ ff_free_vlc(&ctx->run_vlc);
return 0;
}
-AVCodec dnxhd_decoder = {
- "dnxhd",
- CODEC_TYPE_VIDEO,
- CODEC_ID_DNXHD,
- sizeof(DNXHDContext),
- dnxhd_decode_init,
- NULL,
- dnxhd_decode_close,
- dnxhd_decode_frame,
- CODEC_CAP_DR1,
+AVCodec ff_dnxhd_decoder = {
+ .name = "dnxhd",
+ .long_name = NULL_IF_CONFIG_SMALL("VC3/DNxHD"),
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_DNXHD,
+ .priv_data_size = sizeof(DNXHDContext),
+ .init = dnxhd_decode_init,
+ .close = dnxhd_decode_close,
+ .decode = dnxhd_decode_frame,
+ .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
};