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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-05-01 22:44:07 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-07-08 19:45:47 +0200 |
| commit | 699e09f0de7c07bb1078bb9a6f6ebb190d777937 (patch) | |
| tree | a2d2f19c508bb8eb5be32edd92f704bc24c11a15 | |
| parent | 39723d1ccbb2b0d11ed81be742d90232fcd788ef (diff) | |
| download | ffmpeg-699e09f0de7c07bb1078bb9a6f6ebb190d777937.tar.gz | |
fftools/ffmpeg: Fallback to duration if sample rate is unavailable
Regression since: af1761f7
Fixes: Division by 0
Fixes: ffmpeg_crash_1
Found-by: Thuan Pham, Marcel Böhme, Andrew Santosa and Alexandru Razvan Caciulescu with AFLSmart
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 16d8b13b3b26c19d7f8856e039fe6662d96b4ff3)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | ffmpeg.c | 8 |
1 files changed, 6 insertions, 2 deletions
@@ -2548,8 +2548,12 @@ static int process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eo ist->dts = ist->next_dts; switch (ist->dec_ctx->codec_type) { case AVMEDIA_TYPE_AUDIO: - ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) / - ist->dec_ctx->sample_rate; + if (ist->dec_ctx->sample_rate) { + ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) / + ist->dec_ctx->sample_rate; + } else { + ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q); + } break; case AVMEDIA_TYPE_VIDEO: if (ist->framerate.num) { |