#10826: Short trim inside filter_complex leads to empty output
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Reporter: Gyan | Type: defect
Status: new | Priority: critical
Component: ffmpeg | Version: unspecified
Keywords: | Blocked By:
Blocking: 7.0 | Reproduced by developer: 0
Analyzed by developer: 0 |
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Carrying out a short trim like in the command below leads to an empty
output.
`ffmpeg -i src.mp4 -filter_complex "[0:v]trim=start=0.5:end=0.9[v];
[0:a]atrim=start=0.5:end=0.9[a]" -map [v] -map [a] out.mp4`
Source can be generated using
`ffmpeg -f lavfi -i testsrc -f lavfi -i sine -t 1 src.mp4`
Proximate source of error in log below is
d119ae2fd82a494d9430ff4d4fc262961a68c598
{{{
[vost#0:0/libx264 @ 0000017973984cc0] Could not open encoder before EOF
[aost#0:1/aac @ 0000017973985ac0] Could not open encoder before EOF
[vost#0:0/libx264 @ 0000017973984cc0] Task finished with error code: -22
(Invalid argument)
[aost#0:1/aac @ 0000017973985ac0] Task finished with error code: -22
(Invalid argument)
[vost#0:0/libx264 @ 0000017973984cc0] Terminating thread with return code
-22 (Invalid argument)
[aost#0:1/aac @ 0000017973985ac0] Terminating thread with return code -22
(Invalid argument)
[out#0/mp4 @ 0000017973a752c0] Nothing was written into output file,
because at least one of its streams received no packets.
frame= 0 fps=0.0 q=0.0 Lsize= 0kB time=N/A bitrate=N/A speed=N/A
}}}
However, the empty output first occurs with
d35c05cb9ee39e1d90fab326a6aaec6c6c9433e1
{{{
[out#0/mp4 @ 0000015db613bfc0] sq: 0 EOF
[out#0/mp4 @ 0000015db613bfc0] sq: finish queue
[out#0/mp4 @ 0000015db613bfc0] sq: 1 EOF
[out#0/mp4 @ 0000015db613bfc0] sq: finish queue
[out#0/mp4 @ 0000015db613bfc0] sq: 1 EOF
[out#0/mp4 @ 0000015db613bfc0] sq: finish queue
[out#0/mp4 @ 0000015db613bfc0] sq: receive 1 ts 0.9 queue head -1 ts N/A
[aac @ 0000015db5db1340] Trying to remove 792 more samples than there are
in the queue
[out#0/mp4 @ 0000015db613bfc0] sq: 1 EOF
[out#0/mp4 @ 0000015db613bfc0] sq: finish queue
[out#0/mp4 @ 0000015db613bfc0] Nothing was written into output file,
because at least one of its streams received no packets.
frame= 0 fps=0.0 q=0.0 Lsize= 0kB time=00:00:00.89 bitrate=
0.0kbits/s speed=46.9x
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/10826>
FFmpeg <https://ffmpeg.org>
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