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h264dec: do not export the chroma sample location immediately on parsing the SPS

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This SPS is not necessarily the one that will be used. Export the chroma
location along with all the other SPS properties.
This commit is contained in:
Anton Khirnov 2017-07-29 22:03:55 +02:00
parent bdd31feec9
commit 6eae7e5644
4 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
libavcodec/h264_ps.c
View File

@ -181,9 +181,10 @@ static inline int decode_vui_parameters(GetBitContext *gb, AVCodecContext *avctx
/* chroma_location_info_present_flag */
if (get_bits1(gb)) {
/* chroma_sample_location_type_top_field */
avctx->chroma_sample_location = get_ue_golomb(gb) + 1;
sps->chroma_location = get_ue_golomb(gb) + 1;
get_ue_golomb(gb); /* chroma_sample_location_type_bottom_field */
}
} else
sps->chroma_location = AVCHROMA_LOC_LEFT;
if (show_bits1(gb) && get_bits_left(gb) < 10) {
av_log(avctx, AV_LOG_WARNING, "Truncated VUI (%d)\n", get_bits_left(gb));

2
libavcodec/h264_ps.h
View File

@ -77,6 +77,8 @@ typedef struct SPS {
enum AVColorPrimaries color_primaries;
enum AVColorTransferCharacteristic color_trc;
enum AVColorSpace colorspace;
enum AVChromaLocation chroma_location;
int timing_info_present_flag;
uint32_t num_units_in_tick;
uint32_t time_scale;

1
libavcodec/h264_slice.c
View File

@ -1086,6 +1086,7 @@ static int h264_init_ps(H264Context *h, const H264SliceContext *sl, int first_sl
h->avctx->color_trc = h->sei.alternative_transfer.preferred_transfer_characteristics;
}
}
h->avctx->chroma_sample_location = sps->chroma_location;
if (!h->context_initialized || must_reinit || needs_reinit) {
int flush_changes = h->context_initialized;

2
libavcodec/h264dec.c
View File

@ -325,8 +325,6 @@ static int h264_init_context(AVCodecContext *avctx, H264Context *h)
ff_h264_sei_uninit(&h->sei);
avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
h->nb_slice_ctx = (avctx->active_thread_type & FF_THREAD_SLICE) ? avctx->thread_count : 1;
h->slice_ctx = av_mallocz_array(h->nb_slice_ctx, sizeof(*h->slice_ctx));
if (!h->slice_ctx) {