[FFmpeg-trac] #7079(avformat:new): Remuxing mp4 with data streams leads to crash
FFmpeg
trac at avcodec.org
Tue Mar 20 19:22:52 EET 2018
#7079: Remuxing mp4 with data streams leads to crash
-------------------------------------+-------------------------------------
Reporter: mkver | Owner:
Type: defect | Status: new
Priority: important | Component: avformat
Version: git-master | Resolution:
Keywords: mp4 crash | Blocked By:
SIGSEGV | Reproduced by developer: 0
Blocking: |
Analyzed by developer: 0 |
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Comment (by kccpac):
I tested using latest ffmpeg code (ubuntu 16.0.4 envirnonment). Re-muxing
with hint track will crash as the rtp_ctx (hint track context) is never
initialized. Guess copying non-media track doesn't support.
I tried
1) ./ffmpeg -i Data.Stream.included.mp4 -c copy output.mp4 (OK)
2) ./ffmpeg -i Data.Stream.included.mp4 -map 0:1 -c copy output.mp4 (OK)
3) ./ffmpeg -i Data.Stream.included.mp4 -map 0:0 -c copy output.mp4 (OK)
4) ./ffmpeg -i Data.Stream.included.mp4 -map 0:2 -c copy output.mp4
(crash)
5) ./ffmpeg -i Data.Stream.included.mp4 -map 0:3 -c copy output.mp4
(crash)
For case 1, the output.mp4 contains only media tracks.
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Ticket URL: <https://trac.ffmpeg.org/ticket/7079#comment:4>
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