2010-01-11 00:31:44 +00:00
|
|
|
/*
|
|
|
|
* Copyright (C) 2007 Marco Gerards <marco@gnu.org>
|
|
|
|
* Copyright (C) 2009 David Conrad
|
2011-10-20 18:18:50 +00:00
|
|
|
* Copyright (C) 2011 Jordi Ortiz
|
2010-01-11 00:31:44 +00:00
|
|
|
*
|
|
|
|
* 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
|
|
|
|
*/
|
|
|
|
|
|
|
|
/**
|
2010-04-20 14:45:34 +00:00
|
|
|
* @file
|
2010-01-11 00:31:44 +00:00
|
|
|
* Dirac Decoder
|
2011-10-20 18:18:50 +00:00
|
|
|
* @author Marco Gerards <marco@gnu.org>, David Conrad, Jordi Ortiz <nenjordi@gmail.com>
|
2010-01-11 00:31:44 +00:00
|
|
|
*/
|
|
|
|
|
2011-02-07 13:37:08 +00:00
|
|
|
#include "libavutil/imgutils.h"
|
2014-09-08 22:32:34 +00:00
|
|
|
|
2010-01-11 00:31:44 +00:00
|
|
|
#include "avcodec.h"
|
2014-09-08 22:32:34 +00:00
|
|
|
#include "dirac.h"
|
2010-01-11 00:31:44 +00:00
|
|
|
#include "golomb.h"
|
2013-10-27 09:02:26 +00:00
|
|
|
#include "internal.h"
|
2010-01-11 00:31:44 +00:00
|
|
|
#include "mpeg12data.h"
|
|
|
|
|
2011-10-20 18:18:50 +00:00
|
|
|
/* defaults for source parameters */
|
2010-01-11 00:31:44 +00:00
|
|
|
static const dirac_source_params dirac_source_parameters_defaults[] = {
|
2014-09-08 22:32:34 +00:00
|
|
|
{ 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 },
|
2010-01-11 00:31:44 +00:00
|
|
|
};
|
|
|
|
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] Table 10.4 - Available preset pixel aspect ratio values */
|
2010-01-11 00:31:44 +00:00
|
|
|
static const AVRational dirac_preset_aspect_ratios[] = {
|
2014-09-08 22:32:34 +00:00
|
|
|
{ 1, 1 },
|
|
|
|
{ 10, 11 },
|
|
|
|
{ 12, 11 },
|
|
|
|
{ 40, 33 },
|
|
|
|
{ 16, 11 },
|
|
|
|
{ 4, 3 },
|
2010-01-11 00:31:44 +00:00
|
|
|
};
|
|
|
|
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] Values 9,10 of 10.3.5 Frame Rate.
|
|
|
|
* Table 10.3 Available preset frame rate values
|
2011-10-20 18:18:50 +00:00
|
|
|
*/
|
2010-01-11 00:31:44 +00:00
|
|
|
static const AVRational dirac_frame_rate[] = {
|
2014-09-08 22:32:34 +00:00
|
|
|
{ 15000, 1001 },
|
|
|
|
{ 25, 2 },
|
2010-01-11 00:31:44 +00:00
|
|
|
};
|
|
|
|
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] This should be equivalent to Table 10.5 Available signal
|
|
|
|
* range presets */
|
2010-01-11 00:31:44 +00:00
|
|
|
static const struct {
|
|
|
|
uint8_t bitdepth;
|
|
|
|
enum AVColorRange color_range;
|
|
|
|
} pixel_range_presets[] = {
|
2014-09-08 22:32:34 +00:00
|
|
|
{ 8, AVCOL_RANGE_JPEG },
|
|
|
|
{ 8, AVCOL_RANGE_MPEG },
|
|
|
|
{ 10, AVCOL_RANGE_MPEG },
|
|
|
|
{ 12, AVCOL_RANGE_MPEG },
|
2010-01-11 00:31:44 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
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 */ },
|
|
|
|
};
|
|
|
|
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] Table 10.2 Supported chroma sampling formats + luma Offset */
|
2012-10-06 10:10:34 +00:00
|
|
|
static const enum AVPixelFormat dirac_pix_fmt[2][3] = {
|
|
|
|
{ AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P },
|
|
|
|
{ AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P },
|
2010-01-11 00:31:44 +00:00
|
|
|
};
|
|
|
|
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] 10.3 Parse Source Parameters.
|
|
|
|
* source_parameters(base_video_format) */
|
2010-01-11 00:31:44 +00:00
|
|
|
static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
|
2015-12-09 13:43:29 +00:00
|
|
|
dirac_source_params *source, int *bit_depth)
|
2010-01-11 00:31:44 +00:00
|
|
|
{
|
2014-09-08 22:32:34 +00:00
|
|
|
AVRational frame_rate = { 0, 0 };
|
2010-01-11 00:31:44 +00:00
|
|
|
unsigned luma_depth = 8, luma_offset = 16;
|
|
|
|
int idx;
|
2012-12-07 03:25:17 +00:00
|
|
|
int chroma_x_shift, chroma_y_shift;
|
2010-01-11 00:31:44 +00:00
|
|
|
|
2011-10-20 18:18:50 +00:00
|
|
|
/* [DIRAC_STD] 10.3.2 Frame size. frame_size(video_params) */
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] custom_dimensions_flag */
|
2010-01-11 00:31:44 +00:00
|
|
|
if (get_bits1(gb)) {
|
2012-08-22 11:24:34 +00:00
|
|
|
source->width = svq3_get_ue_golomb(gb); /* [DIRAC_STD] FRAME_WIDTH */
|
|
|
|
source->height = svq3_get_ue_golomb(gb); /* [DIRAC_STD] FRAME_HEIGHT */
|
2010-01-11 00:31:44 +00:00
|
|
|
}
|
|
|
|
|
2011-10-20 18:18:50 +00:00
|
|
|
/* [DIRAC_STD] 10.3.3 Chroma Sampling Format.
|
2012-08-22 11:24:34 +00:00
|
|
|
* chroma_sampling_format(video_params) */
|
|
|
|
/* [DIRAC_STD] custom_chroma_format_flag */
|
2010-01-11 00:31:44 +00:00
|
|
|
if (get_bits1(gb))
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] CHROMA_FORMAT_INDEX */
|
2010-01-11 00:31:44 +00:00
|
|
|
source->chroma_format = svq3_get_ue_golomb(gb);
|
2011-09-17 19:53:21 +00:00
|
|
|
if (source->chroma_format > 2U) {
|
2010-01-11 00:31:44 +00:00
|
|
|
av_log(avctx, AV_LOG_ERROR, "Unknown chroma format %d\n",
|
|
|
|
source->chroma_format);
|
2012-08-21 13:09:40 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2010-01-11 00:31:44 +00:00
|
|
|
}
|
|
|
|
|
2011-10-20 18:18:50 +00:00
|
|
|
/* [DIRAC_STD] 10.3.4 Scan Format. scan_format(video_params) */
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] custom_scan_format_flag */
|
2010-01-11 00:31:44 +00:00
|
|
|
if (get_bits1(gb))
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] SOURCE_SAMPLING */
|
2010-01-11 00:31:44 +00:00
|
|
|
source->interlaced = svq3_get_ue_golomb(gb);
|
2011-09-17 19:53:21 +00:00
|
|
|
if (source->interlaced > 1U)
|
2012-08-21 13:09:40 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2010-01-11 00:31:44 +00:00
|
|
|
|
2011-10-20 18:18:50 +00:00
|
|
|
/* [DIRAC_STD] 10.3.5 Frame Rate. frame_rate(video_params) */
|
|
|
|
if (get_bits1(gb)) { /* [DIRAC_STD] custom_frame_rate_flag */
|
|
|
|
source->frame_rate_index = svq3_get_ue_golomb(gb);
|
2010-01-11 00:31:44 +00:00
|
|
|
|
2011-09-17 19:53:21 +00:00
|
|
|
if (source->frame_rate_index > 10U)
|
2012-08-21 13:09:40 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2010-01-11 00:31:44 +00:00
|
|
|
|
|
|
|
if (!source->frame_rate_index) {
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] FRAME_RATE_NUMER */
|
2010-01-11 00:31:44 +00:00
|
|
|
frame_rate.num = svq3_get_ue_golomb(gb);
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] FRAME_RATE_DENOM */
|
2010-01-11 00:31:44 +00:00
|
|
|
frame_rate.den = svq3_get_ue_golomb(gb);
|
|
|
|
}
|
|
|
|
}
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] preset_frame_rate(video_params, index) */
|
2010-01-11 00:31:44 +00:00
|
|
|
if (source->frame_rate_index > 0) {
|
|
|
|
if (source->frame_rate_index <= 8)
|
2012-10-18 07:30:03 +00:00
|
|
|
frame_rate = ff_mpeg12_frame_rate_tab[source->frame_rate_index];
|
2010-01-11 00:31:44 +00:00
|
|
|
else
|
2014-09-08 22:32:34 +00:00
|
|
|
/* [DIRAC_STD] Table 10.3 values 9-10 */
|
|
|
|
frame_rate = dirac_frame_rate[source->frame_rate_index - 9];
|
2010-01-11 00:31:44 +00:00
|
|
|
}
|
2014-04-04 10:47:44 +00:00
|
|
|
avctx->framerate = frame_rate;
|
2010-01-11 00:31:44 +00:00
|
|
|
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] 10.3.6 Pixel Aspect Ratio.
|
|
|
|
* pixel_aspect_ratio(video_params) */
|
2011-10-20 18:18:50 +00:00
|
|
|
if (get_bits1(gb)) { /* [DIRAC_STD] custom_pixel_aspect_ratio_flag */
|
2014-09-08 22:32:34 +00:00
|
|
|
/* [DIRAC_STD] index */
|
2010-01-11 00:31:44 +00:00
|
|
|
source->aspect_ratio_index = svq3_get_ue_golomb(gb);
|
|
|
|
|
2011-09-17 19:53:21 +00:00
|
|
|
if (source->aspect_ratio_index > 6U)
|
2012-08-21 13:09:40 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2010-01-11 00:31:44 +00:00
|
|
|
|
|
|
|
if (!source->aspect_ratio_index) {
|
|
|
|
avctx->sample_aspect_ratio.num = svq3_get_ue_golomb(gb);
|
|
|
|
avctx->sample_aspect_ratio.den = svq3_get_ue_golomb(gb);
|
|
|
|
}
|
|
|
|
}
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] Take value from Table 10.4 Available preset pixel
|
|
|
|
* aspect ratio values */
|
2010-01-11 00:31:44 +00:00
|
|
|
if (source->aspect_ratio_index > 0)
|
|
|
|
avctx->sample_aspect_ratio =
|
2014-09-08 22:32:34 +00:00
|
|
|
dirac_preset_aspect_ratios[source->aspect_ratio_index - 1];
|
2011-10-20 18:18:50 +00:00
|
|
|
|
|
|
|
/* [DIRAC_STD] 10.3.7 Clean area. clean_area(video_params) */
|
|
|
|
if (get_bits1(gb)) { /* [DIRAC_STD] custom_clean_area_flag */
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] CLEAN_WIDTH */
|
2014-09-08 22:32:34 +00:00
|
|
|
source->clean_width = svq3_get_ue_golomb(gb);
|
|
|
|
/* [DIRAC_STD] CLEAN_HEIGHT */
|
|
|
|
source->clean_height = svq3_get_ue_golomb(gb);
|
|
|
|
/* [DIRAC_STD] CLEAN_LEFT_OFFSET */
|
|
|
|
source->clean_left_offset = svq3_get_ue_golomb(gb);
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] CLEAN_RIGHT_OFFSET */
|
2010-01-11 00:31:44 +00:00
|
|
|
source->clean_right_offset = svq3_get_ue_golomb(gb);
|
|
|
|
}
|
|
|
|
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [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 */
|
2010-01-11 00:31:44 +00:00
|
|
|
source->pixel_range_index = svq3_get_ue_golomb(gb);
|
|
|
|
|
2011-09-17 19:53:21 +00:00
|
|
|
if (source->pixel_range_index > 4U)
|
2012-08-21 13:09:40 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2010-01-11 00:31:44 +00:00
|
|
|
|
2011-10-20 18:18:50 +00:00
|
|
|
/* This assumes either fullrange or MPEG levels only */
|
2010-01-11 00:31:44 +00:00
|
|
|
if (!source->pixel_range_index) {
|
|
|
|
luma_offset = svq3_get_ue_golomb(gb);
|
2014-09-08 22:32:34 +00:00
|
|
|
luma_depth = av_log2(svq3_get_ue_golomb(gb)) + 1;
|
2012-08-22 11:24:34 +00:00
|
|
|
svq3_get_ue_golomb(gb); /* chroma offset */
|
2011-10-20 18:18:50 +00:00
|
|
|
svq3_get_ue_golomb(gb); /* chroma excursion */
|
2014-09-08 22:32:34 +00:00
|
|
|
avctx->color_range = luma_offset ? AVCOL_RANGE_MPEG
|
|
|
|
: AVCOL_RANGE_JPEG;
|
2010-01-11 00:31:44 +00:00
|
|
|
}
|
|
|
|
}
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] Table 10.5
|
|
|
|
* Available signal range presets <--> pixel_range_presets */
|
2010-01-11 00:31:44 +00:00
|
|
|
if (source->pixel_range_index > 0) {
|
2014-09-08 22:32:34 +00:00
|
|
|
idx = source->pixel_range_index - 1;
|
2010-01-11 00:31:44 +00:00
|
|
|
luma_depth = pixel_range_presets[idx].bitdepth;
|
|
|
|
avctx->color_range = pixel_range_presets[idx].color_range;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (luma_depth > 8)
|
2012-09-01 11:15:11 +00:00
|
|
|
av_log(avctx, AV_LOG_WARNING, "Bitdepth greater than 8\n");
|
2010-01-11 00:31:44 +00:00
|
|
|
|
2015-12-09 13:43:29 +00:00
|
|
|
|
|
|
|
*bit_depth = luma_depth;
|
|
|
|
|
2010-01-11 00:31:44 +00:00
|
|
|
avctx->pix_fmt = dirac_pix_fmt[!luma_offset][source->chroma_format];
|
2012-12-07 03:25:17 +00:00
|
|
|
avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_x_shift, &chroma_y_shift);
|
2013-01-08 23:43:31 +00:00
|
|
|
if ((source->width % (1<<chroma_x_shift)) || (source->height % (1<<chroma_y_shift))) {
|
2014-08-27 20:39:29 +00:00
|
|
|
av_log(avctx, AV_LOG_ERROR, "Dimensions must be an integer multiple of the chroma subsampling\n");
|
2012-12-07 03:25:17 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
}
|
|
|
|
|
2010-01-11 00:31:44 +00:00
|
|
|
|
2011-10-20 18:18:50 +00:00
|
|
|
/* [DIRAC_STD] 10.3.9 Colour specification. colour_spec(video_params) */
|
|
|
|
if (get_bits1(gb)) { /* [DIRAC_STD] custom_colour_spec_flag */
|
2014-09-08 22:32:34 +00:00
|
|
|
/* [DIRAC_STD] index */
|
2010-01-11 00:31:44 +00:00
|
|
|
idx = source->color_spec_index = svq3_get_ue_golomb(gb);
|
|
|
|
|
2011-09-17 19:53:21 +00:00
|
|
|
if (source->color_spec_index > 4U)
|
2012-08-21 13:09:40 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2010-01-11 00:31:44 +00:00
|
|
|
|
|
|
|
avctx->color_primaries = dirac_color_presets[idx].color_primaries;
|
|
|
|
avctx->colorspace = dirac_color_presets[idx].colorspace;
|
|
|
|
avctx->color_trc = dirac_color_presets[idx].color_trc;
|
|
|
|
|
|
|
|
if (!source->color_spec_index) {
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] 10.3.9.1 Colour primaries */
|
2010-01-11 00:31:44 +00:00
|
|
|
if (get_bits1(gb)) {
|
|
|
|
idx = svq3_get_ue_golomb(gb);
|
2011-09-17 19:53:21 +00:00
|
|
|
if (idx < 3U)
|
2010-01-11 00:31:44 +00:00
|
|
|
avctx->color_primaries = dirac_primaries[idx];
|
|
|
|
}
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] 10.3.9.2 Colour matrix */
|
2010-01-11 00:31:44 +00:00
|
|
|
if (get_bits1(gb)) {
|
|
|
|
idx = svq3_get_ue_golomb(gb);
|
|
|
|
if (!idx)
|
|
|
|
avctx->colorspace = AVCOL_SPC_BT709;
|
|
|
|
else if (idx == 1)
|
|
|
|
avctx->colorspace = AVCOL_SPC_BT470BG;
|
|
|
|
}
|
2011-10-20 18:18:50 +00:00
|
|
|
/* [DIRAC_STD] 10.3.9.3 Transfer function */
|
2010-01-11 00:31:44 +00:00
|
|
|
if (get_bits1(gb) && !svq3_get_ue_golomb(gb))
|
|
|
|
avctx->color_trc = AVCOL_TRC_BT709;
|
|
|
|
}
|
|
|
|
} else {
|
2014-09-08 22:32:34 +00:00
|
|
|
idx = source->color_spec_index;
|
2010-01-11 00:31:44 +00:00
|
|
|
avctx->color_primaries = dirac_color_presets[idx].color_primaries;
|
|
|
|
avctx->colorspace = dirac_color_presets[idx].colorspace;
|
|
|
|
avctx->color_trc = dirac_color_presets[idx].color_trc;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] 10. Sequence Header. sequence_header() */
|
2011-10-17 07:45:27 +00:00
|
|
|
int avpriv_dirac_parse_sequence_header(AVCodecContext *avctx, GetBitContext *gb,
|
2015-12-09 13:43:29 +00:00
|
|
|
dirac_source_params *source,
|
2015-12-09 00:05:31 +00:00
|
|
|
DiracVersionInfo *version,
|
2015-12-09 13:43:29 +00:00
|
|
|
int *bit_depth)
|
2010-01-11 00:31:44 +00:00
|
|
|
{
|
|
|
|
unsigned video_format, picture_coding_mode;
|
2012-08-21 13:09:40 +00:00
|
|
|
int ret;
|
2010-01-11 00:31:44 +00:00
|
|
|
|
2011-10-20 18:18:50 +00:00
|
|
|
/* [DIRAC_SPEC] 10.1 Parse Parameters. parse_parameters() */
|
2015-12-09 00:05:35 +00:00
|
|
|
version->major = svq3_get_ue_golomb(gb);
|
|
|
|
version->minor = svq3_get_ue_golomb(gb);
|
|
|
|
avctx->profile = svq3_get_ue_golomb(gb);
|
|
|
|
avctx->level = svq3_get_ue_golomb(gb);
|
2011-10-20 18:18:50 +00:00
|
|
|
/* [DIRAC_SPEC] sequence_header() -> base_video_format as defined in
|
2012-08-22 11:24:34 +00:00
|
|
|
* 10.2 Base Video Format, table 10.1 Dirac predefined video formats */
|
2015-12-09 00:05:35 +00:00
|
|
|
video_format = svq3_get_ue_golomb(gb);
|
2010-01-11 00:31:44 +00:00
|
|
|
|
2015-12-09 00:05:35 +00:00
|
|
|
if (version->major < 2)
|
2010-01-11 00:31:44 +00:00
|
|
|
av_log(avctx, AV_LOG_WARNING, "Stream is old and may not work\n");
|
2015-12-09 00:05:35 +00:00
|
|
|
else if (version->major > 2)
|
2010-01-11 00:31:44 +00:00
|
|
|
av_log(avctx, AV_LOG_WARNING, "Stream may have unhandled features\n");
|
|
|
|
|
2011-09-17 19:53:21 +00:00
|
|
|
if (video_format > 20U)
|
2012-08-21 13:09:40 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2010-01-11 00:31:44 +00:00
|
|
|
|
2011-10-20 18:18:50 +00:00
|
|
|
/* Fill in defaults for the source parameters. */
|
2010-01-11 00:31:44 +00:00
|
|
|
*source = dirac_source_parameters_defaults[video_format];
|
|
|
|
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] 10.3 Source Parameters
|
|
|
|
* Override the defaults. */
|
2015-12-09 13:43:29 +00:00
|
|
|
if (ret = parse_source_parameters(avctx, gb, source, bit_depth))
|
2012-08-21 13:09:40 +00:00
|
|
|
return ret;
|
2010-01-11 00:31:44 +00:00
|
|
|
|
2013-10-27 09:02:26 +00:00
|
|
|
ret = ff_set_dimensions(avctx, source->width, source->height);
|
|
|
|
if (ret < 0)
|
2012-08-21 13:09:40 +00:00
|
|
|
return ret;
|
2010-01-11 00:31:44 +00:00
|
|
|
|
2014-04-28 20:08:33 +00:00
|
|
|
ff_set_sar(avctx, avctx->sample_aspect_ratio);
|
|
|
|
|
2012-08-22 11:24:34 +00:00
|
|
|
/* [DIRAC_STD] picture_coding_mode shall be 0 for fields and 1 for frames
|
|
|
|
* currently only used to signal field coding */
|
2010-01-11 00:31:44 +00:00
|
|
|
picture_coding_mode = svq3_get_ue_golomb(gb);
|
|
|
|
if (picture_coding_mode != 0) {
|
2012-09-01 11:15:11 +00:00
|
|
|
av_log(avctx, AV_LOG_ERROR, "Unsupported picture coding mode %d\n",
|
2010-01-11 00:31:44 +00:00
|
|
|
picture_coding_mode);
|
2012-08-21 13:09:40 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2010-01-11 00:31:44 +00:00
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|