#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): My current plan: {{{ bin\ffmpeg55212_v4patch -y -i in.wav -c:a aac -strict experimental -b:a 128k out.mp4 bin\ffmpeg56667_v6patch_c185 -y -i in.wav -c:a aac -strict experimental -b:a 128k out.mp4 bin\ffmpeg56667_v6patch_c185 -y -i in.wav -c:a aac -strict experimental -q:a 0.7 out.mp4 bin\ffmpeg56667 -y -i in.wav -c:a libfdk_aac -vbr 3 out.mp4 bin\ffmpeg56667 -y -i in.wav -c:a libfaac -q:a 97 out.mp4 bin\ffmpeg56667 -y -i in.wav -c:a libmp3lame -q:a 5 out.mp3 bin\ffmpeg56667 -y -i in.wav -c:a ac3 -b:a 128k out.ac3 }}} Many people were asking the quality of faac. Weird, but maybe I should include it if many people are wondering. Expect the test to slow down. The bitrate distribution of vbr encoders. Even when the comment:185 was applied, the speech samples takes up a lot of space. [[Image(http://i39.tinypic.com/2h8be3o.png)]] My current FFmpeg configuration: {{{ $ ./configure --enable-gpl --enable-version3 --enable-nonfree --enable- libfdk-a ac --enable-libfaac --enable-libmp3lame --extra-ldflags=-static --extra- cflags= '-march=nocona -mfpmath=sse' --optflags=-O2 }}} Is there a way to expose more bugs so that we can fix it before the test? -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2686#comment:192> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker _______________________________________________ FFmpeg-trac mailing list FFmpeg-trac@avcodec.org http://avcodec.org/mailman/listinfo/ffmpeg-trac