[FFmpeg-trac] #2686(avcodec:open): Native AAC encoder collapses at high bitrates on some samples

[FFmpeg]

#2686: Native AAC encoder collapses at high bitrates on some samples
-------------------------------------+-------------------------------------
             Reporter:  Kamedo2      |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  aac          |               Blocked By:
  regression                         |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by Kamedo2):

 I've encoded weeks of AACs using v4 patch, using diverse samples and
 diverse bitrates and there were no problem(empty files, return with
 errors, freezes).

 Is 'tweaking rdlambda for VBR' ready? If not, I think I should test v4 ABR
 first, because it's stable, have less artifacts in tonal samples. The
 blind test will be conducted in ABC/HR methodology, and there should be
 some opponents. I'm thinking of...
 * current git head with no patch, abr
 * v4 patch(or anything latest), abr
 * fdk-aac, abr
 The bitrate will be 96kbps and 128kbps.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2686#comment:124>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker