*/
#include "libavutil/imgutils.h"
-#include "dirac.h"
+
#include "avcodec.h"
+#include "bitstream.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 },
+ { 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},
+ { 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},
+ { 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},
+ { 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_SPC_BT709, AVCOL_TRC_UNSPECIFIED /* DCinema */ },
};
-static const enum PixelFormat dirac_pix_fmt[2][3] = {
- { PIX_FMT_YUV444P, PIX_FMT_YUV422P, PIX_FMT_YUV420P },
- { PIX_FMT_YUVJ444P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ420P },
+/* [DIRAC_STD] Table 10.2 Supported chroma sampling formats + luma Offset */
+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 },
};
-static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
- dirac_source_params *source)
+/* [DIRAC_STD] 10.3 Parse Source Parameters.
+ * source_parameters(base_video_format) */
+static int parse_source_parameters(AVDiracSeqHeader *dsh, BitstreamContext *bc,
+ void *log_ctx)
{
- AVRational frame_rate = (AVRational){0,0};
+ AVRational frame_rate = { 0, 0 };
unsigned luma_depth = 8, luma_offset = 16;
int idx;
- if (get_bits1(gb)) {
- source->width = svq3_get_ue_golomb(gb);
- source->height = svq3_get_ue_golomb(gb);
+ /* [DIRAC_STD] 10.3.2 Frame size. frame_size(video_params) */
+ /* [DIRAC_STD] custom_dimensions_flag */
+ if (bitstream_read_bit(bc)) {
+ dsh->width = get_interleaved_ue_golomb(bc); /* [DIRAC_STD] FRAME_WIDTH */
+ dsh->height = get_interleaved_ue_golomb(bc); /* [DIRAC_STD] FRAME_HEIGHT */
}
- // chroma subsampling
- if (get_bits1(gb))
- source->chroma_format = svq3_get_ue_golomb(gb);
- if (source->chroma_format > 2) {
- av_log(avctx, AV_LOG_ERROR, "Unknown chroma format %d\n",
- source->chroma_format);
- return -1;
+ /* [DIRAC_STD] 10.3.3 Chroma Sampling Format.
+ * chroma_sampling_format(video_params) */
+ /* [DIRAC_STD] custom_chroma_format_flag */
+ if (bitstream_read_bit(bc))
+ /* [DIRAC_STD] CHROMA_FORMAT_INDEX */
+ dsh->chroma_format = get_interleaved_ue_golomb(bc);
+ if (dsh->chroma_format > 2) {
+ if (log_ctx)
+ av_log(log_ctx, AV_LOG_ERROR, "Unknown chroma format %d\n",
+ dsh->chroma_format);
+ return AVERROR_INVALIDDATA;
}
- if (get_bits1(gb))
- source->interlaced = svq3_get_ue_golomb(gb);
- if (source->interlaced > 1)
- return -1;
-
- // frame rate
- if (get_bits1(gb)) {
- source->frame_rate_index = svq3_get_ue_golomb(gb);
-
- if (source->frame_rate_index > 10)
- return -1;
-
- if (!source->frame_rate_index) {
- frame_rate.num = svq3_get_ue_golomb(gb);
- frame_rate.den = svq3_get_ue_golomb(gb);
+ /* [DIRAC_STD] 10.3.4 Scan Format. scan_format(video_params) */
+ /* [DIRAC_STD] custom_scan_format_flag */
+ if (bitstream_read_bit(bc))
+ /* [DIRAC_STD] SOURCE_SAMPLING */
+ dsh->interlaced = get_interleaved_ue_golomb(bc);
+ if (dsh->interlaced > 1)
+ return AVERROR_INVALIDDATA;
+
+ /* [DIRAC_STD] 10.3.5 Frame Rate. frame_rate(video_params) */
+ if (bitstream_read_bit(bc)) { /* [DIRAC_STD] custom_frame_rate_flag */
+ dsh->frame_rate_index = get_interleaved_ue_golomb(bc);
+
+ if (dsh->frame_rate_index > 10)
+ return AVERROR_INVALIDDATA;
+
+ if (!dsh->frame_rate_index) {
+ /* [DIRAC_STD] FRAME_RATE_NUMER */
+ frame_rate.num = get_interleaved_ue_golomb(bc);
+ /* [DIRAC_STD] FRAME_RATE_DENOM */
+ frame_rate.den = get_interleaved_ue_golomb(bc);
}
}
- if (source->frame_rate_index > 0) {
- if (source->frame_rate_index <= 8)
- frame_rate = ff_frame_rate_tab[source->frame_rate_index];
+ /* [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
- frame_rate = dirac_frame_rate[source->frame_rate_index-9];
+ /* [DIRAC_STD] Table 10.3 values 9-10 */
+ frame_rate = dirac_frame_rate[dsh->frame_rate_index - 9];
}
- av_reduce(&avctx->time_base.num, &avctx->time_base.den,
- frame_rate.den, frame_rate.num, 1<<30);
+ dsh->framerate = frame_rate;
- // aspect ratio
- if (get_bits1(gb)) {
- source->aspect_ratio_index = svq3_get_ue_golomb(gb);
+ /* [DIRAC_STD] 10.3.6 Pixel Aspect Ratio.
+ * pixel_aspect_ratio(video_params) */
+ if (bitstream_read_bit(bc)) { /* [DIRAC_STD] custom_pixel_aspect_ratio_flag */
+ /* [DIRAC_STD] index */
+ dsh->aspect_ratio_index = get_interleaved_ue_golomb(bc);
- if (source->aspect_ratio_index > 6)
- return -1;
+ if (dsh->aspect_ratio_index > 6)
+ return AVERROR_INVALIDDATA;
- 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);
+ if (!dsh->aspect_ratio_index) {
+ dsh->sample_aspect_ratio.num = get_interleaved_ue_golomb(bc);
+ dsh->sample_aspect_ratio.den = get_interleaved_ue_golomb(bc);
}
}
- if (source->aspect_ratio_index > 0)
- avctx->sample_aspect_ratio =
- dirac_preset_aspect_ratios[source->aspect_ratio_index-1];
-
- if (get_bits1(gb)) {
- source->clean_width = svq3_get_ue_golomb(gb);
- source->clean_height = svq3_get_ue_golomb(gb);
- source->clean_left_offset = svq3_get_ue_golomb(gb);
- source->clean_right_offset = svq3_get_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 (bitstream_read_bit(bc)) { /* [DIRAC_STD] custom_clean_area_flag */
+ /* [DIRAC_STD] CLEAN_WIDTH */
+ dsh->clean_width = get_interleaved_ue_golomb(bc);
+ /* [DIRAC_STD] CLEAN_HEIGHT */
+ dsh->clean_height = get_interleaved_ue_golomb(bc);
+ /* [DIRAC_STD] CLEAN_LEFT_OFFSET */
+ dsh->clean_left_offset = get_interleaved_ue_golomb(bc);
+ /* [DIRAC_STD] CLEAN_RIGHT_OFFSET */
+ dsh->clean_right_offset = get_interleaved_ue_golomb(bc);
}
- // Override signal range.
- if (get_bits1(gb)) {
- source->pixel_range_index = svq3_get_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 (bitstream_read_bit(bc)) { /* [DIRAC_STD] custom_signal_range_flag */
+ /* [DIRAC_STD] index */
+ dsh->pixel_range_index = get_interleaved_ue_golomb(bc);
- if (source->pixel_range_index > 4)
- return -1;
+ if (dsh->pixel_range_index > 4)
+ return AVERROR_INVALIDDATA;
// This assumes either fullrange or MPEG levels only
- if (!source->pixel_range_index) {
- luma_offset = svq3_get_ue_golomb(gb);
- luma_depth = av_log2(svq3_get_ue_golomb(gb))+1;
- svq3_get_ue_golomb(gb); // chroma offset
- svq3_get_ue_golomb(gb); // chroma excursion
-
- avctx->color_range = luma_offset ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
+ if (!dsh->pixel_range_index) {
+ luma_offset = get_interleaved_ue_golomb(bc);
+ luma_depth = av_log2(get_interleaved_ue_golomb(bc)) + 1;
+ get_interleaved_ue_golomb(bc); /* chroma offset */
+ get_interleaved_ue_golomb(bc); /* chroma excursion */
+ dsh->color_range = luma_offset ? AVCOL_RANGE_MPEG
+ : AVCOL_RANGE_JPEG;
}
}
- if (source->pixel_range_index > 0) {
- idx = source->pixel_range_index-1;
+ /* [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;
- avctx->color_range = pixel_range_presets[idx].color_range;
+ dsh->color_range = pixel_range_presets[idx].color_range;
}
- if (luma_depth > 8)
- av_log(avctx, AV_LOG_WARNING, "Bitdepth greater than 8");
+ if (luma_depth > 8 && log_ctx)
+ av_log(log_ctx, AV_LOG_WARNING, "Bitdepth greater than 8");
- avctx->pix_fmt = dirac_pix_fmt[!luma_offset][source->chroma_format];
+ dsh->pix_fmt = dirac_pix_fmt[!luma_offset][dsh->chroma_format];
- // color spec
- if (get_bits1(gb)) {
- idx = source->color_spec_index = svq3_get_ue_golomb(gb);
+ /* [DIRAC_STD] 10.3.9 Colour specification. colour_spec(video_params) */
+ if (bitstream_read_bit(bc)) { /* [DIRAC_STD] custom_colour_spec_flag */
+ /* [DIRAC_STD] index */
+ idx = dsh->color_spec_index = get_interleaved_ue_golomb(bc);
- if (source->color_spec_index > 4)
- return -1;
+ if (dsh->color_spec_index > 4)
+ return AVERROR_INVALIDDATA;
- 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;
+ 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 (!source->color_spec_index) {
- if (get_bits1(gb)) {
- idx = svq3_get_ue_golomb(gb);
+ if (!dsh->color_spec_index) {
+ /* [DIRAC_STD] 10.3.9.1 Colour primaries */
+ if (bitstream_read_bit(bc)) {
+ idx = get_interleaved_ue_golomb(bc);
if (idx < 3)
- avctx->color_primaries = dirac_primaries[idx];
+ dsh->color_primaries = dirac_primaries[idx];
}
-
- if (get_bits1(gb)) {
- idx = svq3_get_ue_golomb(gb);
+ /* [DIRAC_STD] 10.3.9.2 Colour matrix */
+ if (bitstream_read_bit(bc)) {
+ idx = get_interleaved_ue_golomb(bc);
if (!idx)
- avctx->colorspace = AVCOL_SPC_BT709;
+ dsh->colorspace = AVCOL_SPC_BT709;
else if (idx == 1)
- avctx->colorspace = AVCOL_SPC_BT470BG;
+ dsh->colorspace = AVCOL_SPC_BT470BG;
}
-
- if (get_bits1(gb) && !svq3_get_ue_golomb(gb))
- avctx->color_trc = AVCOL_TRC_BT709;
+ /* [DIRAC_STD] 10.3.9.3 Transfer function */
+ if (bitstream_read_bit(bc) && !get_interleaved_ue_golomb(bc))
+ dsh->color_trc = AVCOL_TRC_BT709;
}
} else {
- idx = source->color_spec_index;
- 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;
+ 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;
}
-int avpriv_dirac_parse_sequence_header(AVCodecContext *avctx, GetBitContext *gb,
- dirac_source_params *source)
+/* [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;
+ BitstreamContext bc;
unsigned version_major;
unsigned video_format, picture_coding_mode;
+ int ret;
+
+ dsh = av_mallocz(sizeof(*dsh));
+ if (!dsh)
+ return AVERROR(ENOMEM);
+
+ ret = bitstream_init8(&bc, buf, buf_size);
+ if (ret < 0)
+ goto fail;
+
+ /* [DIRAC_SPEC] 10.1 Parse Parameters. parse_parameters() */
+ version_major = get_interleaved_ue_golomb(&bc);
+ get_interleaved_ue_golomb(&bc); /* version_minor */
+ dsh->profile = get_interleaved_ue_golomb(&bc);
+ dsh->level = get_interleaved_ue_golomb(&bc);
+ /* [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(&bc);
+
+ if (log_ctx) {
+ if (version_major < 2)
+ av_log(log_ctx, AV_LOG_WARNING, "Stream is old and may not work\n");
+ else if (version_major > 2)
+ av_log(log_ctx, AV_LOG_WARNING, "Stream may have unhandled features\n");
+ }
- version_major = svq3_get_ue_golomb(gb);
- svq3_get_ue_golomb(gb); /* version_minor */
- avctx->profile = svq3_get_ue_golomb(gb);
- avctx->level = svq3_get_ue_golomb(gb);
- video_format = svq3_get_ue_golomb(gb);
-
- if (version_major < 2)
- av_log(avctx, AV_LOG_WARNING, "Stream is old and may not work\n");
- else if (version_major > 2)
- av_log(avctx, AV_LOG_WARNING, "Stream may have unhandled features\n");
-
- if (video_format > 20)
- return -1;
+ if (video_format > 20) {
+ ret = AVERROR_INVALIDDATA;
+ goto fail;
+ }
// Fill in defaults for the source parameters.
- *source = dirac_source_parameters_defaults[video_format];
-
- // Override the defaults.
- if (parse_source_parameters(avctx, gb, source))
- return -1;
-
- if (av_image_check_size(source->width, source->height, 0, avctx))
- return -1;
-
- avcodec_set_dimensions(avctx, source->width, source->height);
-
- // currently only used to signal field coding
- picture_coding_mode = svq3_get_ue_golomb(gb);
+ 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, &bc, 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(&bc);
if (picture_coding_mode != 0) {
- av_log(avctx, AV_LOG_ERROR, "Unsupported picture coding mode %d",
- picture_coding_mode);
- return -1;
+ 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
projects / ffmpeg / blobdiff