Opened 3 years ago

Closed 3 years ago

#4208 closed defect (invalid)

aac encoder fails for 8kHz and the default bitrate

Reported by: EEY2kkuVd6 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)

ffmpeg-20141225-143751.log (6.6 KB) - added by EEY2kkuVd6 3 years ago.
Report file for reproduction method (1).
ffmpeg-20141225-143618.log (7.5 KB) - added by EEY2kkuVd6 3 years ago.
Report file for reproduction method (2).

Download all attachments as: .zip

Change History (3)

Changed 3 years ago by EEY2kkuVd6

Report file for reproduction method (1).

Changed 3 years ago by EEY2kkuVd6

Report file for reproduction method (2).

comment:1 Changed 3 years ago by cehoyos

  • Keywords aac added
  • Resolution set to invalid
  • Status changed from new to closed
  • Summary changed from when converting to .mov "Too many bits per frame requested" to 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).

Note: See TracTickets for help on using tickets.