Opened 10 years ago
Closed 10 years ago
#4208 closed defect (invalid)
aac encoder fails for 8kHz and the default bitrate
| Reported by: | Bill Butler | Owned by: | |
|---|---|---|---|
| Priority: | normal | Component: | undetermined |
| Version: | unspecified | Keywords: | aac |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | no |
Description
Summary of the bug:
Examples of ways to reproduce:
1) ffmpeg -report -i 95d9Mini.avi -strict -2 95d9Mini.mov
2) ffmpeg -report -i 95d9.avi -vf scale=120:-1 -q:v 0 -strict -2 95d9Mini.mov
Note that for (1) above, 95d9Mini.avi is produced by the successful execution of:
ffmpeg -i 95d9.avi -vf scale=120:-1 -q:v 0 95d9Mini.avi
I attach report files for each example above.
Attachments (2)
Change History (3)
by , 10 years ago
| Attachment: | ffmpeg-20141225-143751.log added |
|---|
by , 10 years ago
| Attachment: | ffmpeg-20141225-143618.log added |
|---|
Report file for reproduction method (2).
comment:1 by , 10 years ago
| Keywords: | aac added |
|---|---|
| Resolution: | → invalid |
| Status: | new → closed |
| Summary: | when converting to .mov "Too many bits per frame requested" → aac encoder fails for 8kHz and the default bitrate |
The aac encoder is currently marked as experimental which means that you cannot expect every bitrate to work with every samplerate (especially not a low one) nor that the default bitrate makes sense. Improvements for the aac encoder are currently discussed - see ticket #2686 - and will hopefully be committed soon. If the bug is still reproducible after these improvements, it will be possible to fix it but as long as the encoder is marked as experimental, this is not a valid ticket (the discussed improvements will not get easier by committing work-arounds for the current code).
Report file for reproduction method (1).