* @see http://wiki.multimedia.cx/index.php?title=Apple_ProRes
*/
-#define A32_BITSTREAM_READER // some ProRes vlc codes require up to 28 bits to be read at once
+#define LONG_BITSTREAM_READER // some ProRes vlc codes require up to 28 bits to be read at once
#include <stdint.h>
#include "libavutil/intmath.h"
#include "avcodec.h"
+#include "proresdata.h"
#include "proresdsp.h"
#include "get_bits.h"
+typedef struct {
+ const uint8_t *index; ///< pointers to the data of this slice
+ int slice_num;
+ int x_pos, y_pos;
+ int slice_width;
+ int prev_slice_sf; ///< scalefactor of the previous decoded slice
+ DECLARE_ALIGNED(16, DCTELEM, blocks)[8 * 4 * 64];
+ DECLARE_ALIGNED(16, int16_t, qmat_luma_scaled)[64];
+ DECLARE_ALIGNED(16, int16_t, qmat_chroma_scaled)[64];
+} ProresThreadData;
+
typedef struct {
ProresDSPContext dsp;
AVFrame picture;
uint8_t qmat_luma[64]; ///< dequantization matrix for luma
uint8_t qmat_chroma[64]; ///< dequantization matrix for chroma
int qmat_changed; ///< 1 - global quantization matrices changed
- int prev_slice_sf; ///< scalefactor of the previous decoded slice
- DECLARE_ALIGNED(16, int16_t, qmat_luma_scaled[64]);
- DECLARE_ALIGNED(16, int16_t, qmat_chroma_scaled[64]);
- DECLARE_ALIGNED(16, DCTELEM, blocks[8 * 4 * 64]);
int total_slices; ///< total number of slices in a picture
- const uint8_t **slice_data_index; ///< array of pointers to the data of each slice
+ ProresThreadData *slice_data;
+ int pic_num;
int chroma_factor;
int mb_chroma_factor;
int num_chroma_blocks; ///< number of chrominance blocks in a macroblock
int slice_height_factor;
int num_x_mbs;
int num_y_mbs;
+ int alpha_info;
} ProresContext;
-static const uint8_t progressive_scan[64] = {
- 0, 1, 8, 9, 2, 3, 10, 11,
- 16, 17, 24, 25, 18, 19, 26, 27,
- 4, 5, 12, 20, 13, 6, 7, 14,
- 21, 28, 29, 22, 15, 23, 30, 31,
- 32, 33, 40, 48, 41, 34, 35, 42,
- 49, 56, 57, 50, 43, 36, 37, 44,
- 51, 58, 59, 52, 45, 38, 39, 46,
- 53, 60, 61, 54, 47, 55, 62, 63
-};
-
-static const uint8_t interlaced_scan[64] = {
- 0, 8, 1, 9, 16, 24, 17, 25,
- 2, 10, 3, 11, 18, 26, 19, 27,
- 32, 40, 33, 34, 41, 48, 56, 49,
- 42, 35, 43, 50, 57, 58, 51, 59,
- 4, 12, 5, 6, 13, 20, 28, 21,
- 14, 7, 15, 22, 29, 36, 44, 37,
- 30, 23, 31, 38, 45, 52, 60, 53,
- 46, 39, 47, 54, 61, 62, 55, 63
-};
-
-
static av_cold int decode_init(AVCodecContext *avctx)
{
ProresContext *ctx = avctx->priv_data;
ctx->total_slices = 0;
- ctx->slice_data_index = 0;
-
- avctx->pix_fmt = PIX_FMT_YUV422P10; // set default pixel format
+ ctx->slice_data = NULL;
avctx->bits_per_raw_sample = PRORES_BITS_PER_SAMPLE;
ff_proresdsp_init(&ctx->dsp);
ctx->scantable_type = -1; // set scantable type to uninitialized
memset(ctx->qmat_luma, 4, 64);
memset(ctx->qmat_chroma, 4, 64);
- ctx->prev_slice_sf = 0;
return 0;
}
ctx->num_chroma_blocks = (1 << ctx->chroma_factor) >> 1;
switch (ctx->chroma_factor) {
case 2:
- avctx->pix_fmt = PIX_FMT_YUV422P10;
+ avctx->pix_fmt = AV_PIX_FMT_YUV422P10;
break;
case 3:
- avctx->pix_fmt = PIX_FMT_YUV444P10;
+ avctx->pix_fmt = AV_PIX_FMT_YUV444P10;
break;
default:
av_log(avctx, AV_LOG_ERROR,
if (ctx->scantable_type != ctx->frame_type) {
if (!ctx->frame_type)
ff_init_scantable(ctx->dsp.idct_permutation, &ctx->scantable,
- progressive_scan);
+ ff_prores_progressive_scan);
else
ff_init_scantable(ctx->dsp.idct_permutation, &ctx->scantable,
- interlaced_scan);
+ ff_prores_interlaced_scan);
ctx->scantable_type = ctx->frame_type;
}
ctx->picture.top_field_first = ctx->frame_type & 1;
}
+ avctx->color_primaries = buf[14];
+ avctx->color_trc = buf[15];
+ avctx->colorspace = buf[16];
+
+ ctx->alpha_info = buf[17] & 0xf;
+ if (ctx->alpha_info)
+ av_log_missing_feature(avctx, "Alpha channel", 0);
+
ctx->qmat_changed = 0;
ptr = buf + 20;
flags = buf[19];
}
if (ctx->total_slices != num_slices) {
- av_freep(&ctx->slice_data_index);
- ctx->slice_data_index = av_malloc((num_slices + 1) * sizeof(uint8_t*));
- if (!ctx->slice_data_index)
+ av_freep(&ctx->slice_data);
+ ctx->slice_data = av_malloc((num_slices + 1) * sizeof(ctx->slice_data[0]));
+ if (!ctx->slice_data)
return AVERROR(ENOMEM);
ctx->total_slices = num_slices;
}
data_ptr = index_ptr + num_slices * 2;
for (i = 0; i < num_slices; i++) {
- ctx->slice_data_index[i] = data_ptr;
+ ctx->slice_data[i].index = data_ptr;
+ ctx->slice_data[i].prev_slice_sf = 0;
data_ptr += AV_RB16(index_ptr + i * 2);
}
- ctx->slice_data_index[i] = data_ptr;
+ ctx->slice_data[i].index = data_ptr;
+ ctx->slice_data[i].prev_slice_sf = 0;
if (data_ptr > buf + data_size) {
av_log(avctx, AV_LOG_ERROR, "out of slice data\n");
/**
* Read an unsigned rice/exp golomb codeword.
*/
-static inline int decode_vlc_codeword(GetBitContext *gb, uint8_t codebook)
+static inline int decode_vlc_codeword(GetBitContext *gb, unsigned codebook)
{
unsigned int rice_order, exp_order, switch_bits;
unsigned int buf, code;
#define LSB2SIGN(x) (-((x) & 1))
#define TOSIGNED(x) (((x) >> 1) ^ LSB2SIGN(x))
-#define FIRST_DC_CB 0xB8 // rice_order = 5, exp_golomb_order = 6, switch_bits = 0
-
-static uint8_t dc_codebook[4] = {
- 0x04, // rice_order = 0, exp_golomb_order = 1, switch_bits = 0
- 0x28, // rice_order = 1, exp_golomb_order = 2, switch_bits = 0
- 0x4D, // rice_order = 2, exp_golomb_order = 3, switch_bits = 1
- 0x70 // rice_order = 3, exp_golomb_order = 4, switch_bits = 0
-};
-
-
/**
* Decode DC coefficients for all blocks in a slice.
*/
delta = 3;
for (i = 1; i < nblocks; i++, out += 64) {
- code = decode_vlc_codeword(gb, dc_codebook[FFMIN(FFABS(delta), 3)]);
+ code = decode_vlc_codeword(gb, ff_prores_dc_codebook[FFMIN(FFABS(delta), 3)]);
sign = -(((delta >> 15) & 1) ^ (code & 1));
delta = (((code + 1) >> 1) ^ sign) - sign;
}
-static uint8_t ac_codebook[7] = {
- 0x04, // rice_order = 0, exp_golomb_order = 1, switch_bits = 0
- 0x28, // rice_order = 1, exp_golomb_order = 2, switch_bits = 0
- 0x4C, // rice_order = 2, exp_golomb_order = 3, switch_bits = 0
- 0x05, // rice_order = 0, exp_golomb_order = 1, switch_bits = 1
- 0x29, // rice_order = 1, exp_golomb_order = 2, switch_bits = 1
- 0x06, // rice_order = 0, exp_golomb_order = 1, switch_bits = 2
- 0x0A, // rice_order = 0, exp_golomb_order = 2, switch_bits = 2
-};
-
-/**
- * Lookup tables for adaptive switching between codebooks
- * according with previous run/level value.
- */
-static uint8_t run_to_cb_index[16] =
- { 5, 5, 3, 3, 0, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 2 };
-
-static uint8_t lev_to_cb_index[10] = { 0, 6, 3, 5, 0, 1, 1, 1, 1, 2 };
-
-
/**
* Decode AC coefficients for all blocks in a slice.
*/
block_mask = blocks_per_slice - 1;
for (pos = blocks_per_slice - 1; pos < max_coeffs;) {
- run_cb_index = run_to_cb_index[FFMIN(run, 15)];
- lev_cb_index = lev_to_cb_index[FFMIN(level, 9)];
+ run_cb_index = ff_prores_run_to_cb_index[FFMIN(run, 15)];
+ lev_cb_index = ff_prores_lev_to_cb_index[FFMIN(level, 9)];
bits_left = get_bits_left(gb);
if (bits_left <= 0 || (bits_left <= 8 && !show_bits(gb, bits_left)))
return;
- run = decode_vlc_codeword(gb, ac_codebook[run_cb_index]);
+ run = decode_vlc_codeword(gb, ff_prores_ac_codebook[run_cb_index]);
bits_left = get_bits_left(gb);
if (bits_left <= 0 || (bits_left <= 8 && !show_bits(gb, bits_left)))
return;
- level = decode_vlc_codeword(gb, ac_codebook[lev_cb_index]) + 1;
+ level = decode_vlc_codeword(gb, ff_prores_ac_codebook[lev_cb_index]) + 1;
pos += run + 1;
if (pos >= max_coeffs)
/**
* Decode a slice plane (luma or chroma).
*/
-static void decode_slice_plane(ProresContext *ctx, const uint8_t *buf,
+static void decode_slice_plane(ProresContext *ctx, ProresThreadData *td,
+ const uint8_t *buf,
int data_size, uint16_t *out_ptr,
int linesize, int mbs_per_slice,
int blocks_per_mb, int plane_size_factor,
- const int16_t *qmat)
+ const int16_t *qmat, int is_chroma)
{
GetBitContext gb;
DCTELEM *block_ptr;
blocks_per_slice = mbs_per_slice * blocks_per_mb;
- memset(ctx->blocks, 0, 8 * 4 * 64 * sizeof(*ctx->blocks));
+ memset(td->blocks, 0, 8 * 4 * 64 * sizeof(*td->blocks));
init_get_bits(&gb, buf, data_size << 3);
- decode_dc_coeffs(&gb, ctx->blocks, blocks_per_slice);
+ decode_dc_coeffs(&gb, td->blocks, blocks_per_slice);
- decode_ac_coeffs(&gb, ctx->blocks, blocks_per_slice,
+ decode_ac_coeffs(&gb, td->blocks, blocks_per_slice,
plane_size_factor, ctx->scantable.permutated);
/* inverse quantization, inverse transform and output */
- block_ptr = ctx->blocks;
+ block_ptr = td->blocks;
- for (mb_num = 0; mb_num < mbs_per_slice; mb_num++, out_ptr += blocks_per_mb * 4) {
- ctx->dsp.idct_put(out_ptr, linesize, block_ptr, qmat);
- block_ptr += 64;
- if (blocks_per_mb > 2) {
- ctx->dsp.idct_put(out_ptr + 8, linesize, block_ptr, qmat);
+ if (!is_chroma) {
+ for (mb_num = 0; mb_num < mbs_per_slice; mb_num++, out_ptr += blocks_per_mb * 4) {
+ ctx->dsp.idct_put(out_ptr, linesize, block_ptr, qmat);
+ block_ptr += 64;
+ if (blocks_per_mb > 2) {
+ ctx->dsp.idct_put(out_ptr + 8, linesize, block_ptr, qmat);
+ block_ptr += 64;
+ }
+ ctx->dsp.idct_put(out_ptr + linesize * 4, linesize, block_ptr, qmat);
block_ptr += 64;
+ if (blocks_per_mb > 2) {
+ ctx->dsp.idct_put(out_ptr + linesize * 4 + 8, linesize, block_ptr, qmat);
+ block_ptr += 64;
+ }
}
- ctx->dsp.idct_put(out_ptr + linesize * 4, linesize, block_ptr, qmat);
- block_ptr += 64;
- if (blocks_per_mb > 2) {
- ctx->dsp.idct_put(out_ptr + linesize * 4 + 8, linesize, block_ptr, qmat);
+ } else {
+ for (mb_num = 0; mb_num < mbs_per_slice; mb_num++, out_ptr += blocks_per_mb * 4) {
+ ctx->dsp.idct_put(out_ptr, linesize, block_ptr, qmat);
block_ptr += 64;
+ ctx->dsp.idct_put(out_ptr + linesize * 4, linesize, block_ptr, qmat);
+ block_ptr += 64;
+ if (blocks_per_mb > 2) {
+ ctx->dsp.idct_put(out_ptr + 8, linesize, block_ptr, qmat);
+ block_ptr += 64;
+ ctx->dsp.idct_put(out_ptr + linesize * 4 + 8, linesize, block_ptr, qmat);
+ block_ptr += 64;
+ }
}
}
}
-static int decode_slice(ProresContext *ctx, int pic_num, int slice_num,
- int mb_x_pos, int mb_y_pos, int mbs_per_slice,
- AVCodecContext *avctx)
+static int decode_slice(AVCodecContext *avctx, void *tdata)
{
+ ProresThreadData *td = tdata;
+ ProresContext *ctx = avctx->priv_data;
+ int mb_x_pos = td->x_pos;
+ int mb_y_pos = td->y_pos;
+ int pic_num = ctx->pic_num;
+ int slice_num = td->slice_num;
+ int mbs_per_slice = td->slice_width;
const uint8_t *buf;
uint8_t *y_data, *u_data, *v_data;
AVFrame *pic = avctx->coded_frame;
int slice_data_size, hdr_size, y_data_size, u_data_size, v_data_size;
int y_linesize, u_linesize, v_linesize;
- buf = ctx->slice_data_index[slice_num];
- slice_data_size = ctx->slice_data_index[slice_num + 1] - buf;
+ buf = ctx->slice_data[slice_num].index;
+ slice_data_size = ctx->slice_data[slice_num + 1].index - buf;
slice_width_factor = av_log2(mbs_per_slice);
hdr_size = buf[0] >> 3;
y_data_size = AV_RB16(buf + 2);
u_data_size = AV_RB16(buf + 4);
- v_data_size = slice_data_size - y_data_size - u_data_size - hdr_size;
+ v_data_size = hdr_size > 7 ? AV_RB16(buf + 6) :
+ slice_data_size - y_data_size - u_data_size - hdr_size;
- if (v_data_size < 0 || hdr_size < 6) {
+ if (hdr_size + y_data_size + u_data_size + v_data_size > slice_data_size ||
+ v_data_size < 0 || hdr_size < 6) {
av_log(avctx, AV_LOG_ERROR, "invalid data size\n");
return AVERROR_INVALIDDATA;
}
sf = sf > 128 ? (sf - 96) << 2 : sf;
/* scale quantization matrixes according with slice's scale factor */
- /* TODO: this can be SIMD-optimized alot */
- if (ctx->qmat_changed || sf != ctx->prev_slice_sf) {
- ctx->prev_slice_sf = sf;
+ /* TODO: this can be SIMD-optimized a lot */
+ if (ctx->qmat_changed || sf != td->prev_slice_sf) {
+ td->prev_slice_sf = sf;
for (i = 0; i < 64; i++) {
- ctx->qmat_luma_scaled[i] = ctx->qmat_luma[i] * sf;
- ctx->qmat_chroma_scaled[i] = ctx->qmat_chroma[i] * sf;
+ td->qmat_luma_scaled[ctx->dsp.idct_permutation[i]] = ctx->qmat_luma[i] * sf;
+ td->qmat_chroma_scaled[ctx->dsp.idct_permutation[i]] = ctx->qmat_chroma[i] * sf;
}
}
/* decode luma plane */
- decode_slice_plane(ctx, buf + hdr_size, y_data_size,
+ decode_slice_plane(ctx, td, buf + hdr_size, y_data_size,
(uint16_t*) (y_data + (mb_y_pos << 4) * y_linesize +
(mb_x_pos << 5)), y_linesize,
mbs_per_slice, 4, slice_width_factor + 2,
- ctx->qmat_luma_scaled);
+ td->qmat_luma_scaled, 0);
/* decode U chroma plane */
- decode_slice_plane(ctx, buf + hdr_size + y_data_size, u_data_size,
+ decode_slice_plane(ctx, td, buf + hdr_size + y_data_size, u_data_size,
(uint16_t*) (u_data + (mb_y_pos << 4) * u_linesize +
(mb_x_pos << ctx->mb_chroma_factor)),
u_linesize, mbs_per_slice, ctx->num_chroma_blocks,
slice_width_factor + ctx->chroma_factor - 1,
- ctx->qmat_chroma_scaled);
+ td->qmat_chroma_scaled, 1);
/* decode V chroma plane */
- decode_slice_plane(ctx, buf + hdr_size + y_data_size + u_data_size,
+ decode_slice_plane(ctx, td, buf + hdr_size + y_data_size + u_data_size,
v_data_size,
(uint16_t*) (v_data + (mb_y_pos << 4) * v_linesize +
(mb_x_pos << ctx->mb_chroma_factor)),
v_linesize, mbs_per_slice, ctx->num_chroma_blocks,
slice_width_factor + ctx->chroma_factor - 1,
- ctx->qmat_chroma_scaled);
+ td->qmat_chroma_scaled, 1);
return 0;
}
slice_num = 0;
+ ctx->pic_num = pic_num;
for (y_pos = 0; y_pos < ctx->num_y_mbs; y_pos++) {
slice_width = 1 << ctx->slice_width_factor;
while (ctx->num_x_mbs - x_pos < slice_width)
slice_width >>= 1;
- if (decode_slice(ctx, pic_num, slice_num, x_pos, y_pos,
- slice_width, avctx) < 0)
- return -1;
+ ctx->slice_data[slice_num].slice_num = slice_num;
+ ctx->slice_data[slice_num].x_pos = x_pos;
+ ctx->slice_data[slice_num].y_pos = y_pos;
+ ctx->slice_data[slice_num].slice_width = slice_width;
slice_num++;
}
}
- return 0;
+ return avctx->execute(avctx, decode_slice,
+ ctx->slice_data, NULL, slice_num,
+ sizeof(ctx->slice_data[0]));
}
-#define FRAME_ID MKBETAG('i', 'c', 'p', 'f')
#define MOVE_DATA_PTR(nbytes) buf += (nbytes); buf_size -= (nbytes)
static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
if (ctx->picture.data[0])
avctx->release_buffer(avctx, &ctx->picture);
- av_freep(&ctx->slice_data_index);
+ av_freep(&ctx->slice_data);
return 0;
}
AVCodec ff_prores_decoder = {
.name = "prores",
.type = AVMEDIA_TYPE_VIDEO,
- .id = CODEC_ID_PRORES,
+ .id = AV_CODEC_ID_PRORES,
.priv_data_size = sizeof(ProresContext),
.init = decode_init,
.close = decode_close,
.decode = decode_frame,
- .capabilities = CODEC_CAP_DR1,
+ .capabilities = CODEC_CAP_DR1 | CODEC_CAP_SLICE_THREADS,
.long_name = NULL_IF_CONFIG_SMALL("Apple ProRes (iCodec Pro)")
};
projects / ffmpeg / blobdiff