#4786(undetermined:new): MLP misdetected for dvd_pcm
#4786: MLP misdetected for dvd_pcm -------------------------------------+------------------------------------- Reporter: patrakov | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: How to reproduce: {{{ $ ffprobe ATS_01_1.AOB ffprobe version 2.7.2 Copyright (c) 2007-2015 the FFmpeg developers built with gcc 5.2.0 (GCC) configuration: --prefix=/usr --disable-debug --disable-static --disable- stripping --enable-avisynth --enable-avresample --enable-fontconfig --enable-gnutls --enable-gpl --enable-libass --enable-libbluray --enable- libfreetype --enable-libfribidi --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable- libschroedinger --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libv4l2 --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-shared --enable-version3 --enable-x11grab libavutil 54. 27.100 / 54. 27.100 libavcodec 56. 41.100 / 56. 41.100 libavformat 56. 36.100 / 56. 36.100 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 16.101 / 5. 16.101 libavresample 2. 1. 0 / 2. 1. 0 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 2.100 / 1. 2.100 libpostproc 53. 3.100 / 53. 3.100 Input #0, mpeg, from 'ATS_01_1.AOB': Duration: 00:00:22.96, start: 0.007333, bitrate: 3568 kb/s Stream #0:0[0xa1]: Audio: pcm_dvd, 48000 Hz, 6 channels, s16, 4608 kb/s }}} However the stream is actually MLP, not PCM, and is playable by VLC. -- Ticket URL: <https://trac.ffmpeg.org/ticket/4786> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker
#4786: MLP misdetected for dvd_pcm -------------------------------------+------------------------------------- Reporter: patrakov | Owner: Type: defect | Status: new Priority: normal | Component: Version: unspecified | undetermined Keywords: | Resolution: Blocking: | Blocked By: Analyzed by developer: 0 | Reproduced by developer: 0 -------------------------------------+------------------------------------- Comment (by patrakov): well, the output in the initial report was for a 10-megabyte sample, and the first 2 megabytes are attached because of the file size limit in this instance of Trac. -- Ticket URL: <https://trac.ffmpeg.org/ticket/4786#comment:1> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker
#4786: MLP misdetected for dvd_pcm ------------------------------------+------------------------------------ Reporter: patrakov | Owner: Type: defect | Status: open Priority: normal | Component: avformat Version: git-master | Resolution: Keywords: mpegps mlp | Blocked By: Blocking: | Reproduced by developer: 1 Analyzed by developer: 0 | ------------------------------------+------------------------------------ Changes (by cehoyos): * keywords: => mpegps mlp * status: new => open * version: unspecified => git-master * component: undetermined => avformat * reproduced: 0 => 1 Comment: I just committed a patch that allows forcing mlp with the following command line: {{{ $ ffmpeg -acodec mlp -i ATS_01_1.AOB​ out.wav }}} PoC attached that matches my original patches for [[http://thread.gmane.org/gmane.comp.video.ffmpeg.issues/9010|issue 1731]] on the mailing list: http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/142613 http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/142629 -- Ticket URL: <https://trac.ffmpeg.org/ticket/4786#comment:2> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker
#4786: MLP misdetected for dvd_pcm ------------------------------------+------------------------------------ Reporter: patrakov | Owner: Type: defect | Status: closed Priority: normal | Component: avformat Version: git-master | Resolution: fixed Keywords: mpegps mlp | Blocked By: Blocking: | Reproduced by developer: 1 Analyzed by developer: 0 | ------------------------------------+------------------------------------ Changes (by cehoyos): * status: open => closed * resolution: => fixed Comment: Should be fixed in fb9036b3142e06631a70810c3d779f8e2d9f180c - thank you for the sample! -- Ticket URL: <https://trac.ffmpeg.org/ticket/4786#comment:3> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker
#4786: MLP misdetected for dvd_pcm -------------------------------------+------------------------------------- Reporter: Alexander | Owner: (none) E. Patrakov | Type: defect | Status: closed Priority: normal | Component: avformat Version: git-master | Resolution: fixed Keywords: mpegps mlp | Blocked By: Blocking: | Reproduced by developer: 1 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Comment (by Balling): I will just point out that this is real mlp (after -c copy you see 0xF8726FBB) and has metadata that gives 24 bit (TrueHD does not have it). Yes, it is not lossless with what Plex +EAE.exe produce. WHY?? Plex Transcoder.exe -i ATS_01_1.AOB -c:a pcm_s24le fe2e121.wav ffmpeg.exe -i ATS_01_1.AOB -c:a pcm_s24le daqwdaw1.wav -- Ticket URL: <https://trac.ffmpeg.org/ticket/4786#comment:4> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker
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