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  1. I'm looking to convert a BR to a 720 mkv, while keeping the audio lossless.

    I've extracted the video and PCM audio streams into a single .ts file for experimenting with, as I couldn't get mplayer to detect the PCM stream from the m2ts.

    So, I have a file: track_4113.264.ts

    ffmpeg reports both streams:

    Code:
    $ ffmpeg -i track_4113.264.ts
    FFmpeg version SVN-r21494, Copyright (c) 2000-2010 Fabrice Bellard, et al.
      built on Jan 28 2010 13:03:01 with gcc 4.3.4
      configuration: --prefix=/usr --libdir=/usr/lib --shlibdir=/usr/lib --mandir=/usr/share/man --enable-static --enable-shared --cc=i686-pc-linux-gnu-gcc --disable-network --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-libx264 --enable-libxvid --disable-indev=v4l --disable-indev=v4l2 --disable-indev=oss --disable-indev=jack --disable-outdev=oss --enable-x11grab --enable-pthreads --disable-vdpau --disable-vdpau --disable-altivec --cpu=host --enable-gpl --enable-version3 --enable-postproc --enable-avfilter --enable-avfilter-lavf --disable-stripping --enable-hardcoded-tables
      libavutil     50. 7. 0 / 50. 7. 0
      libavcodec    52.48. 0 / 52.48. 0
      libavformat   52.47. 0 / 52.47. 0
      libavdevice   52. 2. 0 / 52. 2. 0
      libavfilter    1.17. 0 /  1.17. 0
      libswscale     0. 9. 0 /  0. 9. 0
      libpostproc   51. 2. 0 / 51. 2. 0
    [mpegts @ 0x87fe3a0]MAX_READ_SIZE:5000000 reached
    
    Seems stream 0 codec frame rate differs from container frame rate: 47.95 (48000/1001) -> 23.98 (24000/1001)
    Input #0, mpegts, from 'track_4113.264.ts':
      Duration: 00:00:11.61, start: 599.958311, bitrate: 10758 kb/s
      Program 1
        Stream #0.0[0x1011]: Video: h264, yuv420p, 1920x1080 [PAR 1:1 DAR 16:9], 23.97 fps, 23.98 tbr, 90k tbn, 47.95 tbc
        Stream #0.1[0x1100](eng): Audio: pcm_bluray, 48000 Hz, 5.1, s32, 6912 kb/s
    At least one output file must be specified
    However, mplayer reports:
    Code:
    $ mplayer -msglevel identify=6 -frames 0 -identify -vc null -vo null -ao null track_4113.264.ts
    MPlayer 30448-4.3.4 (C) 2000-2010 MPlayer Team
    142 audio & 332 video codecs
    
    Playing track_4113.264.ts.
    TS file format detected.
    PROGRAM_ID=0 (0x00), PMT_PID: 31(0x1F)
    PROGRAM_ID=1 (0x01), PMT_PID: 256(0x100)
    PROGRAM_ID=0 (0x00), PMT_PID: 31(0x1F)
    PROGRAM_ID=1 (0x01), PMT_PID: 256(0x100)
    PROGRAM_ID=0 (0x00), PMT_PID: 31(0x1F)
    PROGRAM_ID=1 (0x01), PMT_PID: 256(0x100)
    PROGRAM_ID=0 (0x00), PMT_PID: 31(0x1F)
    PROGRAM_ID=1 (0x01), PMT_PID: 256(0x100)
    PROGRAM_ID=0 (0x00), PMT_PID: 31(0x1F)
    PROGRAM_ID=1 (0x01), PMT_PID: 256(0x100)
    PROGRAM_ID=0 (0x00), PMT_PID: 31(0x1F)
    PROGRAM_ID=1 (0x01), PMT_PID: 256(0x100)
    PROGRAM_ID=0 (0x00), PMT_PID: 31(0x1F)
    PROGRAM_ID=1 (0x01), PMT_PID: 256(0x100)
    PROGRAM_ID=0 (0x00), PMT_PID: 31(0x1F)
    PROGRAM_ID=1 (0x01), PMT_PID: 256(0x100)
    PROGRAM_ID=0 (0x00), PMT_PID: 31(0x1F)
    PROGRAM_ID=1 (0x01), PMT_PID: 256(0x100)
    PROGRAM_ID=0 (0x00), PMT_PID: 31(0x1F)
    PROGRAM_ID=1 (0x01), PMT_PID: 256(0x100)
    PROGRAM_ID=0 (0x00), PMT_PID: 31(0x1F)
    PROGRAM_ID=1 (0x01), PMT_PID: 256(0x100)
    PROGRAM_ID=0 (0x00), PMT_PID: 31(0x1F)
    PROGRAM_ID=1 (0x01), PMT_PID: 256(0x100)
    PROGRAM_ID=0 (0x00), PMT_PID: 31(0x1F)
    PROGRAM_ID=1 (0x01), PMT_PID: 256(0x100)
    PROGRAM_ID=0 (0x00), PMT_PID: 31(0x1F)
    PROGRAM_ID=1 (0x01), PMT_PID: 256(0x100)
    PROGRAM_ID=0 (0x00), PMT_PID: 31(0x1F)
    PROGRAM_ID=1 (0x01), PMT_PID: 256(0x100)
    PROGRAM_ID=0 (0x00), PMT_PID: 31(0x1F)
    PROGRAM_ID=1 (0x01), PMT_PID: 256(0x100)
    PROGRAM_ID=0 (0x00), PMT_PID: 31(0x1F)
    PROGRAM_ID=1 (0x01), PMT_PID: 256(0x100)
    PROGRAM_ID=0 (0x00), PMT_PID: 31(0x1F)
    PROGRAM_ID=1 (0x01), PMT_PID: 256(0x100)
    VIDEO H264(pid=4113) NO AUDIO!  NO SUBS (yet)!  PROGRAM N. 1
    ID_VIDEO_ID=4113
    FPS seems to be: 23.976025
    ID_FILENAME=track_4113.264.ts
    ID_DEMUXER=mpegts
    ID_VIDEO_FORMAT=0x10000005
    ID_VIDEO_BITRATE=0
    ID_VIDEO_WIDTH=1920
    ID_VIDEO_HEIGHT=1088
    ID_VIDEO_FPS=23.976
    ID_VIDEO_ASPECT=0.0000
    ID_LENGTH=0.00
    ID_SEEKABLE=1
    ID_CHAPTERS=0
    ==========================================================================
    Forced video codec: null
    Opening video decoder: [null] Null video decoder
    Movie-Aspect is undefined - no prescaling applied.
    VO: [null] 1920x1088 => 1920x1088 Planar YV12
    Selected video codec: [null] vfm: null (NULL codec (no decoding!))
    ==========================================================================
    ID_VIDEO_CODEC=null
    Audio: no sound
    Starting playback...
    
    
    Exiting... (End of file)
    ID_EXIT=EOF
    Why can't mplayer see Stream #0.1[0x1100](eng): Audio: pcm_bluray, 48000 Hz, 5.1, s32, 6912 kb/s that ffmpeg sees?

    mplayer detects this exact audio stream fine if it's just inside a wav:
    Code:
    $ mplayer -msglevel identify=6 -frames 0 -identify -vc null -vo null -ao null track_4352.1.wav.5MB
    MPlayer 30448-4.3.4 (C) 2000-2010 MPlayer Team
    142 audio & 332 video codecs
    
    Playing track_4352.1.wav.5MB.
    ID_AUDIO_ID=0
    Audio only file format detected.
    ID_FILENAME=track_4352.1.wav.5MB
    ID_DEMUXER=audio
    ID_AUDIO_FORMAT=65534
    ID_AUDIO_BITRATE=6912000
    ID_AUDIO_RATE=0
    ID_AUDIO_NCH=6
    ID_LENGTH=4971.00
    ID_SEEKABLE=1
    ID_CHAPTERS=0
    ==========================================================================
    Opening audio decoder: [pcm] Uncompressed PCM audio decoder
    AUDIO: 48000 Hz, 6 ch, s24le, 6912.0 kbit/100.00% (ratio: 864000->864000)
    ID_AUDIO_BITRATE=6912000
    ID_AUDIO_RATE=48000
    ID_AUDIO_NCH=6
    Selected audio codec: [pcm] afm: pcm (Uncompressed PCM)
    ==========================================================================
    AO: [null] 48000Hz 6ch s24le (3 bytes per sample)
    ID_AUDIO_CODEC=pcm
    Video: no video
    Starting playback...
    
    
    Exiting... (End of file)
    ID_EXIT=EOF
    I'm sure there's something simple here that I'm not doing..... any ideas?

    Cheers!!
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  2. Member Soopafresh's Avatar
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    Jan 2004
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    United States
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    Probably going to require eac3to . I don't know enough about the app, but if you just want to play your file I'd tell eac3to to convert the 6 channel PCM to 5.1 AC3.
    "Quality is cool, but don't forget... Content is King!"
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  3. Got it sorted

    I just needed to pass in - -demuxer lavf (referenced in a similar problem, http://lists.mplayerhq.hu/pipermail/mplayer-users/2009-July/077284.html)


    And:

    ================================================== ========================
    Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
    AUDIO: 48000 Hz, 6 ch, s32le, 6912.0 kbit/75.00% (ratio:864000->1152000)
    ID_AUDIO_BITRATE=6912000
    ID_AUDIO_RATE=48000
    ID_AUDIO_NCH=6
    Selected audio codec: [lpcm] afm: ffmpeg (Bluray LPCM) ================================================== ========================
    AO: [null] 48000Hz 6ch s32le (4 bytes per sample) ID_AUDIO_CODEC=lpcm
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