No sound from some .mkv files

psyodin · 2013-03-17 23:13:50

hello

arch x64 system
systemd
pulseaudio

I first noticed this issue as the XBMC intro movie (mkv file), at 1st the audio part worked then stopped.

The audio on some .mkv files work, some don't. There is no sound with the problem files using XBMC, mplayer, vlc. The video part plays fine.

example of one that works:

[xxxx@xxxxx ~]$ mplayer /home/xxxxx/project/test.mkv
MPlayer SVN-r35920-4.7.2 (C) 2000-2013 MPlayer Team
203 audio & 421 video codecs
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 /home/xxxxx/project/test.mkv.
libavformat version 54.63.100 (internal)
libavformat file format detected.
[lavf] stream 0: video (h264), -vid 0
[lavf] stream 1: audio (ac3), -aid 0
VIDEO:  [H264]  1280x720  0bpp  25.000 fps    0.0 kbps ( 0.0 kbyte/s)
Clip info:
 title: sample3
 creation_time: 2009-07-14 18:48:55
Load subtitles in /home/xxxxxl/project/
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
libavcodec version 54.92.100 (internal)
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 48000 Hz, 2 ch, floatle, 448.0 kbit/14.58% (ratio: 56000->384000)
Selected audio codec: [ffac3] afm: ffmpeg (FFmpeg AC-3)
==========================================================================
[AO OSS] audio_setup: Can't open audio device /dev/dsp: No such file or directory
AO: [alsa] 48000Hz 2ch floatle (4 bytes per sample)
Starting playback...
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [vdpau] 1280x720 => 1280x720 Planar YV12 
A:  18.9 V:  18.9 A-V:  0.000 ct:  0.040   0/  0 15%  2%  0.3% 0 0 


Exiting... (End of file)

and now one without sound:

[xxxxxxx@xxxxxxxxx ~]$ mplayer /home/dracul/project/xbmc.mkv
MPlayer SVN-r35920-4.7.2 (C) 2000-2013 MPlayer Team
203 audio & 421 video codecs
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 /home/xxxxxx/project/xbmc.mkv.
libavformat version 54.63.100 (internal)
libavformat file format detected.
[lavf] stream 0: video (mpeg2video), -vid 0
VIDEO:  [MPG2]  1280x720  0bpp  29.970 fps    0.0 kbps ( 0.0 kbyte/s)
Clip info:
 TITLE: 
 ARTIST: 
 COMPOSER: 
 SYNOPSIS: 
 DATE_RELEASED: 
 GENRE: 
Load subtitles in /home/xxxxxl/project/
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
libavcodec version 54.92.100 (internal)
Selected video codec: [ffmpeg2] vfm: ffmpeg (FFmpeg MPEG-2)
==========================================================================
Audio: no sound
Starting playback...
[VD_FFMPEG] Trying pixfmt=0.
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
Try appending the scale filter to your filter list,
e.g. -vf spp,scale instead of -vf spp.
[VD_FFMPEG] Trying pixfmt=1.
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
Try appending the scale filter to your filter list,
e.g. -vf spp,scale instead of -vf spp.
[VD_FFMPEG] Trying pixfmt=2.
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
Try appending the scale filter to your filter list,
e.g. -vf spp,scale instead of -vf spp.
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [vdpau] 1280x720 => 1280x720 Planar YV12 
V:   7.8   0/  0  4%  3%  0.0% 0 0 


Exiting... (End of file)

I do see differences, but to be honest I am not sure how where to go from here.

Any help would be appreciated, thank you

thank you for the reminder, done

Last edited by psyodin (2013-03-18 06:02:40)

nomorewindows · 2013-03-17 23:31:15

Please use code tags and I think the second one is corrupted in some way as if audio and video is missed. If this is a DVD mkv, you probably had to select a language.

psyodin · 2013-03-17 23:46:34

The mkv(s) in question that do not work, i have tried 2 that produced the same result with no audio

one is installed with an XBMC skin

The other was a downloaded example from the internet.

Arch Linux

#1 2013-03-17 23:13:50

No sound from some .mkv files

#2 2013-03-17 23:31:15

Re: No sound from some .mkv files

#3 2013-03-17 23:46:34

Re: No sound from some .mkv files

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