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[James Cameron <1648721@xxxxxxxxxxxxxxxxxx>]

I'll attach a stream that causes the problem.  It is from a DVB-T card,
filtered by pid.

The package with regression is libavcodec54.

Previous working version before updates was
https://launchpad.net/ubuntu/trusty/amd64/libavcodec54/6:9.18-0ubuntu0.14.04.1

A workaround, downgrade only this package to 6:9.18-0ubuntu0.14.04.1
does properly play streams.

I want the #1643467 Firefox fix as well, so I've made a local copy of
libavcodec.so.54 for use with mplayer or vlc via LD_LIBRARY_PATH.


** Attachment added: "transport stream, 1MB, test with "mplayer ts""
   https://bugs.launchpad.net/ubuntu/+source/libav/+bug/1648721/+attachment/4789428/+files/ts

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https://bugs.launchpad.net/bugs/1648721

Title:
  does not read mpeg transport streams since #1643467

Status in libav package in Ubuntu:
  New

Bug description:
  Since the security update to 6:9.20-0ubuntu0.14.04.1 triggered today
  by #1643467, vlc and mplayer do not play mpeg transport streams that
  were previously playable.  Other types of stream are unaffected.

  Description:    Ubuntu 14.04.5 LTS
  Release:        14.04

  libav-tools     6:9.20-0ubuntu0.14.04.1
  libavcodec54:amd64      6:9.20-0ubuntu0.14.04.1
  libavdevice53:amd64     6:9.20-0ubuntu0.14.04.1
  libavfilter3:amd64      6:9.20-0ubuntu0.14.04.1
  libavformat54:amd64     6:9.20-0ubuntu0.14.04.1
  libavresample1:amd64    6:9.20-0ubuntu0.14.04.1
  libavutil52:amd64       6:9.20-0ubuntu0.14.04.1
  libswscale2:amd64       6:9.20-0ubuntu0.14.04.1

  vlc     2.1.6-0ubuntu14.04.2
  mplayer 2:1.1+dfsg1-0ubuntu3

  $ mplayer -ao sdl file.mpg 
  MPlayer 1.1-4.8 (C) 2000-2012 MPlayer Team
  mplayer: could not connect to socket
  mplayer: No such file or directory
  Failed to open LIRC support. You will not be able to use your remote control.

  Playing file.mpg.
  libavformat version 54.20.4 (external)
  Mismatching header version 54.20.3
  MPEG-PS file format detected.
  VIDEO:  MPEG2  720x576  (aspect 3)  50.000 fps  9500.0 kbps (1187.5 kbyte/s)
  Load subtitles in /
  Failed to open VDPAU backend libvdpau_r600.so: cannot open shared object file: No such file or directory
  [vdpau] Error when calling vdp_device_create_x11: 1
  ==========================================================================
  Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
  libavcodec version 54.35.1 (external)
  Mismatching header version 54.35.0
  Selected video codec: [ffmpeg2] vfm: ffmpeg (FFmpeg MPEG-2)
  ==========================================================================
  ==========================================================================
  Requested audio codec family [mpg123] (afm=mpg123) not available.
  Enable it at compilation.
  Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
  AUDIO: 48000 Hz, 2 ch, floatle, 256.0 kbit/8.33% (ratio: 32000->384000)
  Selected audio codec: [ffmp2float] afm: ffmpeg (FFmpeg MPEG layer-1 and layer-2 audio)
  ==========================================================================
  [AO SDL] Samplerate: 48000Hz Channels: Stereo Format floatle
  [AO SDL] Unsupported audio format: 0x1d.
  Failed to create secure directory (/run/user/0/pulse): Permission denied
  Failed to create secure directory (/run/user/0/pulse): Permission denied
  AO: [sdl] 48000Hz 2ch s16le (2 bytes per sample)
  Starting playback...
  Unsupported AVPixelFormat 53
  Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
  VO: [xv] 720x576 => 1024x576 Planar YV12 

  
  MPlayer interrupted by signal 11 in module: decode_video
  - MPlayer crashed by bad usage of CPU/FPU/RAM.
    Recompile MPlayer with --enable-debug and make a 'gdb' backtrace and
    disassembly. Details in DOCS/HTML/en/bugreports_what.html#bugreports_crash.
  - MPlayer crashed. This shouldn't happen.
    It can be a bug in the MPlayer code _or_ in your drivers _or_ in your
    gcc version. If you think it's MPlayer's fault, please read
    DOCS/HTML/en/bugreports.html and follow the instructions there. We can't and
    won't help unless you provide this information when reporting a possible bug.
   [ This binary of MPlayer in Debian is currently compiled with
     '--enable-debug'; the debugging symbols are in the package
     'mplayer-dbg'.]

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