#2686: Native AAC encoder collapses at high bitrates on some samples -------------------------------------+------------------------------------- Reporter: Kamedo2 | Owner: Type: defect | klaussfreire Priority: normal | Status: open Version: git-master | Component: avcodec Keywords: aac | Resolution: regression | Blocked By: Blocking: | Reproduced by developer: 1 Analyzed by developer: 0 | -------------------------------------+-------------------------------------
Comment (by atomnuker): Replying to [comment:444 Kamedo2]: > {{{ > ffmpeg76851 -y -i ffmpeg_anmr_error2.flac -c:a aac -strict experimental -ar 44100 -profile:a aac_ltp -b:a 80k out.mp4 > }}} > still crashes the encoder. > > {{{ > ffmpeg version N-76851-ga330430 Copyright (c) 2000-2015 the FFmpeg developers > built with gcc 5.2.0 (GCC) > configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-libmp3 > lame --enable-libvo-aacenc --enable-libvorbis --enable-libfdk-aac --enable-w32th > reads --extra-ldflags=-static --extra-cflags='-mtune=nocona' --optflags=-O2 > libavutil 55. 9.100 / 55. 9.100 > libavcodec 57. 16.100 / 57. 16.100 > libavformat 57. 19.100 / 57. 19.100 > libavdevice 57. 0.100 / 57. 0.100 > libavfilter 6. 15.100 / 6. 15.100 > libswscale 4. 0.100 / 4. 0.100 > libswresample 2. 0.101 / 2. 0.101 > libpostproc 54. 0.100 / 54. 0.100 > Input #0, flac, from 'ffmpeg_anmr_error2.flac': > Duration: 00:00:17.95, start: 0.000000, bitrate: 504 kb/s > Stream #0:0: Audio: flac, 44100 Hz, stereo, s16 > Output #0, mp4, to 'out.mp4': > Metadata: > encoder : Lavf57.19.100 > Stream #0:0: Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp (16 > bit), 80 kb/s > Metadata: > encoder : Lavc57.16.100 aac > Stream mapping: > Stream #0:0 -> #0:0 (flac (native) -> aac (native)) > Press [q] to stop, [?] for help > size= 38kB time=00:00:03.85 bitrate= 81.8kbits/s > }}} Just pushed a commit which improved LTP and fixes the crash. Give it a try. New version is N-76858-g1e5dbb3. -- Ticket URL: <https://trac.ffmpeg.org/ticket/2686#comment:446> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker _______________________________________________ FFmpeg-trac mailing list FFmpeg-trac@avcodec.org http://ffmpeg.org/mailman/listinfo/ffmpeg-trac