#7576: Convert to AC3 fail to give a correct output ------------------------------------+----------------------------------- Reporter: Sami32 | Owner: Type: defect | Status: new Priority: normal | Component: avcodec Version: git-master | Resolution: Keywords: ac3 | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ------------------------------------+-----------------------------------
Comment (by cehoyos): Replying to [comment:3 Sami32]: > Shouldn't this AC3 track have been showed? I believe the AC-3 track is shown correctly by current FFmpeg, but maybe I misunderstand? {{{ $ ffmpeg -i dolby_EAC3_TrueHD_amaze_lossless-DWEU.m2ts ffmpeg version N-92543-g8cc5107 Copyright (c) 2000-2018 the FFmpeg developers built with gcc 6.4.0 (GCC) configuration: --enable-gpl --enable-libxml2 --enable-gnutls libavutil 56. 24.101 / 56. 24.101 libavcodec 58. 40.100 / 58. 40.100 libavformat 58. 23.100 / 58. 23.100 libavdevice 58. 6.100 / 58. 6.100 libavfilter 7. 46.101 / 7. 46.101 libswscale 5. 4.100 / 5. 4.100 libswresample 3. 4.100 / 3. 4.100 libpostproc 55. 4.100 / 55. 4.100 Input #0, mpegts, from 'dolby_EAC3_TrueHD_amaze_lossless-DWEU.m2ts': Duration: 00:01:03.52, start: 4200.000000, bitrate: 22899 kb/s Program 1 Stream #0:0[0x1011](eng): Video: h264 (High) (HDMV / 0x564D4448), yuv420p(progressive), 1920x1080, 24 fps, 24 tbr, 90k tbn, 48 tbc Stream #0:1[0x1100]: Audio: truehd (AC-3 / 0x332D4341), 48000 Hz, 7.1, s32 (24 bit) Stream #0:2[0x1100]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, 5.1(side), fltp, 640 kb/s Stream #0:3[0x1101]: Audio: eac3 (AC-3 / 0x332D4341), 48000 Hz, 7.1, fltp, 1664 kb/s At least one output file must be specified }}} > The audio stream n°1 doesn't seem be a real one. What is not real about what audio stream? > I suspect it to be a substream. Yes, I believe the AC-3 tracks that come with every TrueHD track on a Bluray are called ''substreams''. > The 0 and 2 seem correct audio streams. What makes an audio stream ''correct'' or ''incorrect'' in this context? -- Ticket URL: <https://trac.ffmpeg.org/ticket/7576#comment:4> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker _______________________________________________ FFmpeg-trac mailing list FFmpeg-trac@avcodec.org http://ffmpeg.org/mailman/listinfo/ffmpeg-trac