#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 klaussfreire): Sorry, I've been having trouble making good, provable progress with v6b/v7, especially since I've got a few deadlines coming that require lot of my time. I'll try to fix the crashing, and get performance comparable to v6 without the VBR constraints, which I noticed are hurting quality on high bit rates. However, it seems the tendency to spend lots of bits on speech stems from psy itself, not anything else. It seems to estimate speech has a lot of perceptual entropy. It may be true, but there is some inefficiency that's hard to fix without deviating from the standards. So v7 will probably just address the bugs, crashing, some bugs in tonal band priorization in short window blocks, and stuff like that. About 7.1ch, there's another ticket for that, IIRC. While I will still take a look with the report in this ticket, I'd suggest you post the relevant bits on that ticket as well (for traceability you know) -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2686#comment:203> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker _______________________________________________ FFmpeg-trac mailing list FFmpeg-trac@avcodec.org http://avcodec.org/mailman/listinfo/ffmpeg-trac