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avformat/demux: update Stream Groups in avformat_find_stream_info() from parsed values

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Dimensions are not available at the container level for LCEVC in mpegts, so derive them
from the parsed values taken from the enhancement stream.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer
2026-03-07 16:52:58 -03:00
parent b9cb948ec1
commit ebf70aa854
1 changed files with 19 additions and 0 deletions
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19
libavformat/demux.c
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@@ -3163,6 +3163,25 @@ int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
sti->avctx_inited = 0;
}
/* update the stream group parameters from the stream contexts if needed */
for (unsigned i = 0; i < ic->nb_stream_groups; i++) {
AVStreamGroup *const stg = ic->stream_groups[i];
AVStreamGroupLCEVC *lcevc;
const AVStream *st;
if (stg->type != AV_STREAM_GROUP_PARAMS_LCEVC)
continue;
/* For LCEVC in mpegts, the parser is needed to get the enhancement layer
* dimensions */
lcevc = stg->params.lcevc;
if (lcevc->width && lcevc->height)
continue;
st = stg->streams[lcevc->lcevc_index];
lcevc->width = st->codecpar->width;
lcevc->height = st->codecpar->height;
}
find_stream_info_err:
for (unsigned i = 0; i < ic->nb_streams; i++) {
AVStream *const st = ic->streams[i];