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dump_extradata: Insert extradata even for small packets 

3469cfab added a check for whether the extradata coincided with the
beginning of the packet's data in order not to add extradata to packets
that already have it. But the check used was buggy for packets whose
size is smaller than the extradata's size. This commit fixes this.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Andreas Rheinhardt 2019-12-14 23:19:26 +01:00 committed by Michael Niedermayer
parent 4a141f8e02
commit a88a3cdb4b
1 changed files with 2 additions and 2 deletions
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4
libavcodec/dump_extradata_bsf.c
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@ -51,8 +51,8 @@ static int dump_extradata(AVBSFContext *ctx, AVPacket *out)
if (ctx->par_in->extradata &&
(s->freq == DUMP_FREQ_ALL ||
(s->freq == DUMP_FREQ_KEYFRAME && in->flags & AV_PKT_FLAG_KEY)) &&
in->size >= ctx->par_in->extradata_size &&
memcmp(in->data, ctx->par_in->extradata, ctx->par_in->extradata_size)) {
(in->size < ctx->par_in->extradata_size ||
memcmp(in->data, ctx->par_in->extradata, ctx->par_in->extradata_size))) {
if (in->size >= INT_MAX - ctx->par_in->extradata_size) {
ret = AVERROR(ERANGE);
goto fail;