[FFmpeg-trac] #2686(avcodec:open): Native AAC encoder collapses at high bitrates on some samples
FFmpeg
trac at avcodec.org
Sun Oct 6 18:48:14 CEST 2013
#2686: Native AAC encoder collapses at high bitrates on some samples
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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 |
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Comment (by Kamedo2):
The sound sample above is from here.
http://www.hydrogenaudio.org/forums/index.php?showtopic=50056
I've uploaded 2 problematic samples for the v6 aac, but they are extreme
exceptions, rarely happens in the real encoding situations. Generally, the
v6 patch is a very good patch, the quality is satisfactory. If you upload
the patch that prevents the speech bitrate bloat, I'll start testing. The
opponents are here.
- v4 abr
- v7 abr
- v7 vbr
- fdk-aac cbr
- libfaac vbr
- ac3 cbr
- libmp3lame vbr
BTW, I prefer the name v7 rather than the v6b, even if the revision is
minor. It's easier to explain.
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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2686#comment:200>
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