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| author | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2022-09-20 14:37:38 +0200 |
|---|---|---|
| committer | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2022-09-25 14:53:49 +0200 |
| commit | a7e54196cc94a71c44dd0bd4b91641740a7caf20 (patch) | |
| tree | 013617ab21c02dbe0711c5f08f8bf219921b3279 /libavcodec/cbs.c | |
| parent | 7ae1c0dd3ef8038f541716eb283380fd196041ad (diff) | |
| download | ffmpeg-a7e54196cc94a71c44dd0bd4b91641740a7caf20.tar.gz | |
avcodec/cbs: Only write extradata if there is something to write
It is e.g. legal for an ISOBMFF avcc to contain zero parameter sets.
In this case the annex B that we produce would be empty and therefore
useless. This happens e.g. with mov/frag_overlap.mp4 from the
FATE-suite.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Diffstat (limited to 'libavcodec/cbs.c')
| -rw-r--r-- | libavcodec/cbs.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/cbs.c b/libavcodec/cbs.c index 07ae658a4c..8d6e3c3442 100644 --- a/libavcodec/cbs.c +++ b/libavcodec/cbs.c @@ -438,6 +438,10 @@ int ff_cbs_write_extradata(CodedBitstreamContext *ctx, return err; av_freep(&par->extradata); + par->extradata_size = 0; + + if (!frag->data_size) + return 0; par->extradata = av_malloc(frag->data_size + AV_INPUT_BUFFER_PADDING_SIZE); |