mirror of
https://github.com/ossrs/srs.git
synced 2025-03-09 15:49:59 +00:00
Rename ffmpeg-4.2-fit to ffmpeg-4-fit
This commit is contained in:
parent
b19074721c
commit
27712fdda7
720 changed files with 14 additions and 14 deletions
408
trunk/3rdparty/ffmpeg-4-fit/libavcodec/dirac.c
vendored
Normal file
408
trunk/3rdparty/ffmpeg-4-fit/libavcodec/dirac.c
vendored
Normal file
|
@ -0,0 +1,408 @@
|
|||
/*
|
||||
* 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 "libavutil/imgutils.h"
|
||||
|
||||
#include "avcodec.h"
|
||||
#include "dirac.h"
|
||||
#include "golomb.h"
|
||||
#include "internal.h"
|
||||
#include "mpeg12data.h"
|
||||
|
||||
#if CONFIG_DIRAC_PARSE
|
||||
|
||||
typedef struct dirac_source_params {
|
||||
unsigned width;
|
||||
unsigned height;
|
||||
uint8_t chroma_format; ///< 0: 444 1: 422 2: 420
|
||||
|
||||
uint8_t interlaced;
|
||||
uint8_t top_field_first;
|
||||
|
||||
uint8_t frame_rate_index; ///< index into dirac_frame_rate[]
|
||||
uint8_t aspect_ratio_index; ///< index into dirac_aspect_ratio[]
|
||||
|
||||
uint16_t clean_width;
|
||||
uint16_t clean_height;
|
||||
uint16_t clean_left_offset;
|
||||
uint16_t clean_right_offset;
|
||||
|
||||
uint8_t pixel_range_index; ///< index into dirac_pixel_range_presets[]
|
||||
uint8_t color_spec_index; ///< index into dirac_color_spec_presets[]
|
||||
} dirac_source_params;
|
||||
|
||||
/* defaults for source parameters */
|
||||
static const dirac_source_params dirac_source_parameters_defaults[] = {
|
||||
{ 640, 480, 2, 0, 0, 1, 1, 640, 480, 0, 0, 1, 0 },
|
||||
{ 176, 120, 2, 0, 0, 9, 2, 176, 120, 0, 0, 1, 1 },
|
||||
{ 176, 144, 2, 0, 1, 10, 3, 176, 144, 0, 0, 1, 2 },
|
||||
{ 352, 240, 2, 0, 0, 9, 2, 352, 240, 0, 0, 1, 1 },
|
||||
{ 352, 288, 2, 0, 1, 10, 3, 352, 288, 0, 0, 1, 2 },
|
||||
{ 704, 480, 2, 0, 0, 9, 2, 704, 480, 0, 0, 1, 1 },
|
||||
{ 704, 576, 2, 0, 1, 10, 3, 704, 576, 0, 0, 1, 2 },
|
||||
{ 720, 480, 1, 1, 0, 4, 2, 704, 480, 8, 0, 3, 1 },
|
||||
{ 720, 576, 1, 1, 1, 3, 3, 704, 576, 8, 0, 3, 2 },
|
||||
|
||||
{ 1280, 720, 1, 0, 1, 7, 1, 1280, 720, 0, 0, 3, 3 },
|
||||
{ 1280, 720, 1, 0, 1, 6, 1, 1280, 720, 0, 0, 3, 3 },
|
||||
{ 1920, 1080, 1, 1, 1, 4, 1, 1920, 1080, 0, 0, 3, 3 },
|
||||
{ 1920, 1080, 1, 1, 1, 3, 1, 1920, 1080, 0, 0, 3, 3 },
|
||||
{ 1920, 1080, 1, 0, 1, 7, 1, 1920, 1080, 0, 0, 3, 3 },
|
||||
{ 1920, 1080, 1, 0, 1, 6, 1, 1920, 1080, 0, 0, 3, 3 },
|
||||
{ 2048, 1080, 0, 0, 1, 2, 1, 2048, 1080, 0, 0, 4, 4 },
|
||||
{ 4096, 2160, 0, 0, 1, 2, 1, 4096, 2160, 0, 0, 4, 4 },
|
||||
|
||||
{ 3840, 2160, 1, 0, 1, 7, 1, 3840, 2160, 0, 0, 3, 3 },
|
||||
{ 3840, 2160, 1, 0, 1, 6, 1, 3840, 2160, 0, 0, 3, 3 },
|
||||
{ 7680, 4320, 1, 0, 1, 7, 1, 3840, 2160, 0, 0, 3, 3 },
|
||||
{ 7680, 4320, 1, 0, 1, 6, 1, 3840, 2160, 0, 0, 3, 3 },
|
||||
};
|
||||
|
||||
/* [DIRAC_STD] Table 10.4 - Available preset pixel aspect ratio values */
|
||||
static const AVRational dirac_preset_aspect_ratios[] = {
|
||||
{ 1, 1 },
|
||||
{ 10, 11 },
|
||||
{ 12, 11 },
|
||||
{ 40, 33 },
|
||||
{ 16, 11 },
|
||||
{ 4, 3 },
|
||||
};
|
||||
|
||||
/* [DIRAC_STD] Values 9,10 of 10.3.5 Frame Rate.
|
||||
* Table 10.3 Available preset frame rate values
|
||||
*/
|
||||
static const AVRational dirac_frame_rate[] = {
|
||||
{ 15000, 1001 },
|
||||
{ 25, 2 },
|
||||
};
|
||||
|
||||
/* [DIRAC_STD] This should be equivalent to Table 10.5 Available signal
|
||||
* range presets */
|
||||
static const struct {
|
||||
uint8_t bitdepth;
|
||||
enum AVColorRange color_range;
|
||||
} pixel_range_presets[] = {
|
||||
{ 8, AVCOL_RANGE_JPEG },
|
||||
{ 8, AVCOL_RANGE_MPEG },
|
||||
{ 10, AVCOL_RANGE_MPEG },
|
||||
{ 12, AVCOL_RANGE_MPEG },
|
||||
};
|
||||
|
||||
static const enum AVColorPrimaries dirac_primaries[] = {
|
||||
AVCOL_PRI_BT709,
|
||||
AVCOL_PRI_SMPTE170M,
|
||||
AVCOL_PRI_BT470BG,
|
||||
};
|
||||
|
||||
static const struct {
|
||||
enum AVColorPrimaries color_primaries;
|
||||
enum AVColorSpace colorspace;
|
||||
enum AVColorTransferCharacteristic color_trc;
|
||||
} dirac_color_presets[] = {
|
||||
{ AVCOL_PRI_BT709, AVCOL_SPC_BT709, AVCOL_TRC_BT709 },
|
||||
{ AVCOL_PRI_SMPTE170M, AVCOL_SPC_BT470BG, AVCOL_TRC_BT709 },
|
||||
{ AVCOL_PRI_BT470BG, AVCOL_SPC_BT470BG, AVCOL_TRC_BT709 },
|
||||
{ AVCOL_PRI_BT709, AVCOL_SPC_BT709, AVCOL_TRC_BT709 },
|
||||
{ AVCOL_PRI_BT709, AVCOL_SPC_BT709, AVCOL_TRC_UNSPECIFIED /* DCinema */ },
|
||||
};
|
||||
|
||||
/* [DIRAC_STD] Table 10.2 Supported chroma sampling formats */
|
||||
static const enum AVPixelFormat dirac_pix_fmt[][3] = {
|
||||
{AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV444P12},
|
||||
{AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV422P12},
|
||||
{AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV420P12},
|
||||
};
|
||||
|
||||
/* [DIRAC_STD] 10.3 Parse Source Parameters.
|
||||
* source_parameters(base_video_format) */
|
||||
static int parse_source_parameters(AVDiracSeqHeader *dsh, GetBitContext *gb,
|
||||
void *log_ctx)
|
||||
{
|
||||
AVRational frame_rate = { 0, 0 };
|
||||
unsigned luma_depth = 8, luma_offset = 16;
|
||||
int idx;
|
||||
int chroma_x_shift, chroma_y_shift;
|
||||
int ret;
|
||||
|
||||
/* [DIRAC_STD] 10.3.2 Frame size. frame_size(video_params) */
|
||||
/* [DIRAC_STD] custom_dimensions_flag */
|
||||
if (get_bits1(gb)) {
|
||||
dsh->width = get_interleaved_ue_golomb(gb); /* [DIRAC_STD] FRAME_WIDTH */
|
||||
dsh->height = get_interleaved_ue_golomb(gb); /* [DIRAC_STD] FRAME_HEIGHT */
|
||||
}
|
||||
|
||||
/* [DIRAC_STD] 10.3.3 Chroma Sampling Format.
|
||||
* chroma_sampling_format(video_params) */
|
||||
/* [DIRAC_STD] custom_chroma_format_flag */
|
||||
if (get_bits1(gb))
|
||||
/* [DIRAC_STD] CHROMA_FORMAT_INDEX */
|
||||
dsh->chroma_format = get_interleaved_ue_golomb(gb);
|
||||
if (dsh->chroma_format > 2U) {
|
||||
if (log_ctx)
|
||||
av_log(log_ctx, AV_LOG_ERROR, "Unknown chroma format %d\n",
|
||||
dsh->chroma_format);
|
||||
return AVERROR_INVALIDDATA;
|
||||
}
|
||||
|
||||
/* [DIRAC_STD] 10.3.4 Scan Format. scan_format(video_params) */
|
||||
/* [DIRAC_STD] custom_scan_format_flag */
|
||||
if (get_bits1(gb))
|
||||
/* [DIRAC_STD] SOURCE_SAMPLING */
|
||||
dsh->interlaced = get_interleaved_ue_golomb(gb);
|
||||
if (dsh->interlaced > 1U)
|
||||
return AVERROR_INVALIDDATA;
|
||||
|
||||
/* [DIRAC_STD] 10.3.5 Frame Rate. frame_rate(video_params) */
|
||||
if (get_bits1(gb)) { /* [DIRAC_STD] custom_frame_rate_flag */
|
||||
dsh->frame_rate_index = get_interleaved_ue_golomb(gb);
|
||||
|
||||
if (dsh->frame_rate_index > 10U)
|
||||
return AVERROR_INVALIDDATA;
|
||||
|
||||
if (!dsh->frame_rate_index) {
|
||||
/* [DIRAC_STD] FRAME_RATE_NUMER */
|
||||
frame_rate.num = get_interleaved_ue_golomb(gb);
|
||||
/* [DIRAC_STD] FRAME_RATE_DENOM */
|
||||
frame_rate.den = get_interleaved_ue_golomb(gb);
|
||||
}
|
||||
}
|
||||
/* [DIRAC_STD] preset_frame_rate(video_params, index) */
|
||||
if (dsh->frame_rate_index > 0) {
|
||||
if (dsh->frame_rate_index <= 8)
|
||||
frame_rate = ff_mpeg12_frame_rate_tab[dsh->frame_rate_index];
|
||||
else
|
||||
/* [DIRAC_STD] Table 10.3 values 9-10 */
|
||||
frame_rate = dirac_frame_rate[dsh->frame_rate_index - 9];
|
||||
}
|
||||
dsh->framerate = frame_rate;
|
||||
|
||||
/* [DIRAC_STD] 10.3.6 Pixel Aspect Ratio.
|
||||
* pixel_aspect_ratio(video_params) */
|
||||
if (get_bits1(gb)) { /* [DIRAC_STD] custom_pixel_aspect_ratio_flag */
|
||||
/* [DIRAC_STD] index */
|
||||
dsh->aspect_ratio_index = get_interleaved_ue_golomb(gb);
|
||||
|
||||
if (dsh->aspect_ratio_index > 6U)
|
||||
return AVERROR_INVALIDDATA;
|
||||
|
||||
if (!dsh->aspect_ratio_index) {
|
||||
dsh->sample_aspect_ratio.num = get_interleaved_ue_golomb(gb);
|
||||
dsh->sample_aspect_ratio.den = get_interleaved_ue_golomb(gb);
|
||||
}
|
||||
}
|
||||
/* [DIRAC_STD] Take value from Table 10.4 Available preset pixel
|
||||
* aspect ratio values */
|
||||
if (dsh->aspect_ratio_index > 0)
|
||||
dsh->sample_aspect_ratio =
|
||||
dirac_preset_aspect_ratios[dsh->aspect_ratio_index - 1];
|
||||
|
||||
/* [DIRAC_STD] 10.3.7 Clean area. clean_area(video_params) */
|
||||
if (get_bits1(gb)) { /* [DIRAC_STD] custom_clean_area_flag */
|
||||
/* [DIRAC_STD] CLEAN_WIDTH */
|
||||
dsh->clean_width = get_interleaved_ue_golomb(gb);
|
||||
/* [DIRAC_STD] CLEAN_HEIGHT */
|
||||
dsh->clean_height = get_interleaved_ue_golomb(gb);
|
||||
/* [DIRAC_STD] CLEAN_LEFT_OFFSET */
|
||||
dsh->clean_left_offset = get_interleaved_ue_golomb(gb);
|
||||
/* [DIRAC_STD] CLEAN_RIGHT_OFFSET */
|
||||
dsh->clean_right_offset = get_interleaved_ue_golomb(gb);
|
||||
}
|
||||
|
||||
/* [DIRAC_STD] 10.3.8 Signal range. signal_range(video_params)
|
||||
* WARNING: Some adaptation seems to be done using the
|
||||
* AVCOL_RANGE_MPEG/JPEG values */
|
||||
if (get_bits1(gb)) { /* [DIRAC_STD] custom_signal_range_flag */
|
||||
/* [DIRAC_STD] index */
|
||||
dsh->pixel_range_index = get_interleaved_ue_golomb(gb);
|
||||
|
||||
if (dsh->pixel_range_index > 4U)
|
||||
return AVERROR_INVALIDDATA;
|
||||
|
||||
/* This assumes either fullrange or MPEG levels only */
|
||||
if (!dsh->pixel_range_index) {
|
||||
luma_offset = get_interleaved_ue_golomb(gb);
|
||||
luma_depth = av_log2(get_interleaved_ue_golomb(gb)) + 1;
|
||||
get_interleaved_ue_golomb(gb); /* chroma offset */
|
||||
get_interleaved_ue_golomb(gb); /* chroma excursion */
|
||||
dsh->color_range = luma_offset ? AVCOL_RANGE_MPEG
|
||||
: AVCOL_RANGE_JPEG;
|
||||
}
|
||||
}
|
||||
/* [DIRAC_STD] Table 10.5
|
||||
* Available signal range presets <--> pixel_range_presets */
|
||||
if (dsh->pixel_range_index > 0) {
|
||||
idx = dsh->pixel_range_index - 1;
|
||||
luma_depth = pixel_range_presets[idx].bitdepth;
|
||||
dsh->color_range = pixel_range_presets[idx].color_range;
|
||||
}
|
||||
|
||||
dsh->bit_depth = luma_depth;
|
||||
|
||||
/* Full range 8 bts uses the same pix_fmts as limited range 8 bits */
|
||||
dsh->pixel_range_index += dsh->pixel_range_index == 1;
|
||||
|
||||
if (dsh->pixel_range_index < 2U)
|
||||
return AVERROR_INVALIDDATA;
|
||||
|
||||
dsh->pix_fmt = dirac_pix_fmt[dsh->chroma_format][dsh->pixel_range_index-2];
|
||||
ret = av_pix_fmt_get_chroma_sub_sample(dsh->pix_fmt, &chroma_x_shift, &chroma_y_shift);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
if ((dsh->width % (1<<chroma_x_shift)) || (dsh->height % (1<<chroma_y_shift))) {
|
||||
if (log_ctx)
|
||||
av_log(log_ctx, AV_LOG_ERROR, "Dimensions must be an integer multiple of the chroma subsampling\n");
|
||||
return AVERROR_INVALIDDATA;
|
||||
}
|
||||
|
||||
/* [DIRAC_STD] 10.3.9 Colour specification. colour_spec(video_params) */
|
||||
if (get_bits1(gb)) { /* [DIRAC_STD] custom_colour_spec_flag */
|
||||
/* [DIRAC_STD] index */
|
||||
idx = dsh->color_spec_index = get_interleaved_ue_golomb(gb);
|
||||
|
||||
if (dsh->color_spec_index > 4U)
|
||||
return AVERROR_INVALIDDATA;
|
||||
|
||||
dsh->color_primaries = dirac_color_presets[idx].color_primaries;
|
||||
dsh->colorspace = dirac_color_presets[idx].colorspace;
|
||||
dsh->color_trc = dirac_color_presets[idx].color_trc;
|
||||
|
||||
if (!dsh->color_spec_index) {
|
||||
/* [DIRAC_STD] 10.3.9.1 Colour primaries */
|
||||
if (get_bits1(gb)) {
|
||||
idx = get_interleaved_ue_golomb(gb);
|
||||
if (idx < 3U)
|
||||
dsh->color_primaries = dirac_primaries[idx];
|
||||
}
|
||||
/* [DIRAC_STD] 10.3.9.2 Colour matrix */
|
||||
if (get_bits1(gb)) {
|
||||
idx = get_interleaved_ue_golomb(gb);
|
||||
if (!idx)
|
||||
dsh->colorspace = AVCOL_SPC_BT709;
|
||||
else if (idx == 1)
|
||||
dsh->colorspace = AVCOL_SPC_BT470BG;
|
||||
}
|
||||
/* [DIRAC_STD] 10.3.9.3 Transfer function */
|
||||
if (get_bits1(gb) && !get_interleaved_ue_golomb(gb))
|
||||
dsh->color_trc = AVCOL_TRC_BT709;
|
||||
}
|
||||
} else {
|
||||
idx = dsh->color_spec_index;
|
||||
dsh->color_primaries = dirac_color_presets[idx].color_primaries;
|
||||
dsh->colorspace = dirac_color_presets[idx].colorspace;
|
||||
dsh->color_trc = dirac_color_presets[idx].color_trc;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* [DIRAC_STD] 10. Sequence Header. sequence_header() */
|
||||
int av_dirac_parse_sequence_header(AVDiracSeqHeader **pdsh,
|
||||
const uint8_t *buf, size_t buf_size,
|
||||
void *log_ctx)
|
||||
{
|
||||
AVDiracSeqHeader *dsh;
|
||||
GetBitContext gb;
|
||||
unsigned video_format, picture_coding_mode;
|
||||
int ret;
|
||||
|
||||
dsh = av_mallocz(sizeof(*dsh));
|
||||
if (!dsh)
|
||||
return AVERROR(ENOMEM);
|
||||
|
||||
ret = init_get_bits8(&gb, buf, buf_size);
|
||||
if (ret < 0)
|
||||
goto fail;
|
||||
|
||||
/* [DIRAC_SPEC] 10.1 Parse Parameters. parse_parameters() */
|
||||
dsh->version.major = get_interleaved_ue_golomb(&gb);
|
||||
dsh->version.minor = get_interleaved_ue_golomb(&gb);
|
||||
dsh->profile = get_interleaved_ue_golomb(&gb);
|
||||
dsh->level = get_interleaved_ue_golomb(&gb);
|
||||
/* [DIRAC_SPEC] sequence_header() -> base_video_format as defined in
|
||||
* 10.2 Base Video Format, table 10.1 Dirac predefined video formats */
|
||||
video_format = get_interleaved_ue_golomb(&gb);
|
||||
|
||||
if (dsh->version.major < 2 && log_ctx)
|
||||
av_log(log_ctx, AV_LOG_WARNING, "Stream is old and may not work\n");
|
||||
else if (dsh->version.major > 2 && log_ctx)
|
||||
av_log(log_ctx, AV_LOG_WARNING, "Stream may have unhandled features\n");
|
||||
|
||||
if (video_format > 20U) {
|
||||
ret = AVERROR_INVALIDDATA;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
/* Fill in defaults for the source parameters. */
|
||||
dsh->width = dirac_source_parameters_defaults[video_format].width;
|
||||
dsh->height = dirac_source_parameters_defaults[video_format].height;
|
||||
dsh->chroma_format = dirac_source_parameters_defaults[video_format].chroma_format;
|
||||
dsh->interlaced = dirac_source_parameters_defaults[video_format].interlaced;
|
||||
dsh->top_field_first = dirac_source_parameters_defaults[video_format].top_field_first;
|
||||
dsh->frame_rate_index = dirac_source_parameters_defaults[video_format].frame_rate_index;
|
||||
dsh->aspect_ratio_index = dirac_source_parameters_defaults[video_format].aspect_ratio_index;
|
||||
dsh->clean_width = dirac_source_parameters_defaults[video_format].clean_width;
|
||||
dsh->clean_height = dirac_source_parameters_defaults[video_format].clean_height;
|
||||
dsh->clean_left_offset = dirac_source_parameters_defaults[video_format].clean_left_offset;
|
||||
dsh->clean_right_offset = dirac_source_parameters_defaults[video_format].clean_right_offset;
|
||||
dsh->pixel_range_index = dirac_source_parameters_defaults[video_format].pixel_range_index;
|
||||
dsh->color_spec_index = dirac_source_parameters_defaults[video_format].color_spec_index;
|
||||
|
||||
/* [DIRAC_STD] 10.3 Source Parameters
|
||||
* Override the defaults. */
|
||||
ret = parse_source_parameters(dsh, &gb, log_ctx);
|
||||
if (ret < 0)
|
||||
goto fail;
|
||||
|
||||
/* [DIRAC_STD] picture_coding_mode shall be 0 for fields and 1 for frames
|
||||
* currently only used to signal field coding */
|
||||
picture_coding_mode = get_interleaved_ue_golomb(&gb);
|
||||
if (picture_coding_mode != 0) {
|
||||
if (log_ctx) {
|
||||
av_log(log_ctx, AV_LOG_ERROR, "Unsupported picture coding mode %d",
|
||||
picture_coding_mode);
|
||||
}
|
||||
ret = AVERROR_INVALIDDATA;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
*pdsh = dsh;
|
||||
return 0;
|
||||
fail:
|
||||
av_freep(&dsh);
|
||||
*pdsh = NULL;
|
||||
return ret;
|
||||
}
|
||||
#else
|
||||
int av_dirac_parse_sequence_header(AVDiracSeqHeader **pdsh,
|
||||
const uint8_t *buf, size_t buf_size,
|
||||
void *log_ctx)
|
||||
{
|
||||
return AVERROR(ENOSYS);
|
||||
}
|
||||
#endif
|
Loading…
Add table
Add a link
Reference in a new issue