[FFmpeg-trac] #6563(undetermined:new): LPCM is recognised as MLP in VOB

FFmpeg trac at avcodec.org
Wed Aug 2 08:53:14 EEST 2017


#6563: LPCM is recognised as MLP in VOB
-------------------------------------+-------------------------------------
             Reporter:  macdavis     |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 The sample file can be downloaded here. [http://s1.demo-
 world.eu/sd_trailers.php?file=dts_sparks_sprite_suite_mix-DWEU.vob] [[BR]]
 The second audio track is LPCM while FFmpeg recognises as MLP and fails to
 decode it.
 How to reproduce:
 {{{
 ffmpeg -i /Volumes/RamDisk/dts_sparks_sprite_suite_mix-DWEU.vob -f null -
 ffmpeg version 3.3.git Copyright (c) 2000-2017 the FFmpeg developers
   built with Apple LLVM version 8.1.0 (clang-802.0.42)
   configuration: --optflags=-Ofast --prefix=/usr/local --extra-
 cflags='-march=haswell -mtune=intel -m64 -minline-all-stringops -fomit-
 frame-pointer -fforce-addr -finline-functions -funit-at-a-time -funroll-
 loops -ffunction-sections -fdata-sections -Ofast -pipe -fomit-frame-
 pointer -ftree-vectorize' --target-os=darwin --arch=x86_64 --cpu=haswell
 --disable-runtime-cpudetect --disable-debug --disable-opencl --disable-
 avdevice --disable-ffplay --disable-ffprobe --disable-postproc --disable-
 ffserver --disable-devices --disable-avresample --disable-indev=qtkit
 --disable-doc --enable-pthreads --enable-version3 --enable-hardcoded-
 tables --enable-gpl --enable-nonfree
   libavutil      55. 69.100 / 55. 69.100
   libavcodec     57.102.100 / 57.102.100
   libavformat    57. 76.100 / 57. 76.100
   libavfilter     6. 95.100 /  6. 95.100
   libswscale      4.  7.101 /  4.  7.101
   libswresample   2.  8.100 /  2.  8.100
 [mpeg @ 0x7fe625002600] start time for stream 3 is not set in
 estimate_timings_from_pts
 [mpeg @ 0x7fe625002600] Could not find codec parameters for stream 3
 (Audio: mlp, 0 channels): unspecified sample format
 Consider increasing the value for the 'analyzeduration' and 'probesize'
 options
 Input #0, mpeg, from '/Volumes/RamDisk/dts_sparks_sprite_suite_mix-
 DWEU.vob':
   Duration: 00:00:18.68, start: 0.300300, bitrate: 9240 kb/s
     Stream #0:0[0x1bf]: Data: dvd_nav_packet
     Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top first),
 720x480 [SAR 32:27 DAR 16:9], 6000 kb/s, 29.97 fps, 59.94 tbr, 90k tbn,
 59.94 tbc
     Stream #0:2[0x88]: Audio: dts (DTS-ES), 48000 Hz, 6.1, fltp, 1536 kb/s
     Stream #0:3[0xa1]: Audio: mlp, 0 channels
 Stream mapping:
   Stream #0:1 -> #0:0 (mpeg2video (native) -> wrapped_avframe (native))
   Stream #0:2 -> #0:1 (dts (dca) -> pcm_s16le (native))
 Press [q] to stop, [?] for help
 Output #0, null, to 'pipe:':
   Metadata:
     encoder         : Lavf57.76.100
     Stream #0:0: Video: wrapped_avframe, yuv420p(top coded first
 (swapped)), 720x480 [SAR 32:27 DAR 16:9], q=2-31, 200 kb/s, 29.97 fps,
 29.97 tbn, 29.97 tbc
     Metadata:
       encoder         : Lavc57.102.100 wrapped_avframe
     Stream #0:1: Audio: pcm_s16le, 48000 Hz, 6.1, s16, 5376 kb/s
     Metadata:
       encoder         : Lavc57.102.100 pcm_s16le
 [null @ 0x7fe62503e200] Application provided invalid, non monotonically
 increasing dts to muxer in stream 0: 475 >= 475
 frame=  504 fps=0.0 q=-0.0 Lsize=N/A time=00:00:18.68 bitrate=N/A
 speed=63.5x
 video:260kB audio:12264kB subtitle:0kB other streams:0kB global
 headers:0kB muxing overhead: unknown
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6563>
FFmpeg <https://ffmpeg.org>
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