[gstreamer-bugs] [Bug 575239] New: playbin2 multiple audio track playback issue

GStreamer (bugzilla.gnome.org) bugzilla-daemon at bugzilla.gnome.org
Fri Mar 13 05:03:43 PDT 2009


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  GStreamer | gst-plugins-base | Ver: git
           Summary: playbin2 multiple audio track playback issue
           Product: GStreamer
           Version: git
          Platform: Other
        OS/Version: All
            Status: UNCONFIRMED
          Severity: critical
          Priority: Normal
         Component: gst-plugins-base
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: andreas.frisch at multimedia-labs.de
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


Please describe the problem:
// VIDEO ONLY playback works fine (except for the error messages which i don't
know what they're supposed to mean)

root at dm8000:/media/hdd/movie/mkv# gst-launch playbin2
uri="file:///media/hdd/movie/mkv/testzdf.mkv" flags ="video"      
Setting pipeline to PAUSED ...                                                  
Pipeline is PREROLLING ...                                                      

(gst-launch-0.10:16372): GStreamer-CRITICAL **: 
Trying to dispose element dvbaudiosink0, but it is not in the NULL state.
You need to explicitly set elements to the NULL state before             
dropping the final reference, to allow them to clean up.


(gst-launch-0.10:16372): GStreamer-CRITICAL **:
Trying to dispose element dvbaudiosink1, but it is not in the NULL state.
You need to explicitly set elements to the NULL state before
dropping the final reference, to allow them to clean up.

MIMETYPE video/mpeg2 -> VIDEO_SET_STREAMTYPE, 0
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Caught interrupt -- handling interrupt.
Interrupt: Stopping pipeline ...
Execution ended after 4953850000 ns.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
FREEING pipeline ...


// AUDIO + VIDEO playback doesn't preroll
root at dm8000:/media/hdd/movie/mkv# gst-launch playbin2
uri="file:///media/hdd/movie/mkv/testzdf.mkv" flags ="audio+video"              
Setting pipeline to PAUSED ...                                                  
Pipeline is PREROLLING ...                                                      

(gst-launch-0.10:16354): GStreamer-CRITICAL **: 
Trying to dispose element dvbaudiosink0, but it is not in the NULL state.
You need to explicitly set elements to the NULL state before             
dropping the final reference, to allow them to clean up.                 


(gst-launch-0.10:16354): GStreamer-CRITICAL **: 
Trying to dispose element dvbaudiosink1, but it is not in the NULL state.
You need to explicitly set elements to the NULL state before             
dropping the final reference, to allow them to clean up.                 

WARNING: from element /GstPlayBin2:playbin20/GstPlaySink:playsink0: No volume
control found
Additional debug info:                                                          
gstplaysink.c(1212): gen_audio_chain ():
/GstPlayBin2:playbin20/GstPlaySink:playsink0:     
Volume/mute is not available                                                    
MIMETYPE video/mpeg2 -> VIDEO_SET_STREAMTYPE, 0                                 
MIMETYPE audio/x-ac3                                                            
ERROR: from element
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:abin/GstDVBAudioSink:dvbaudiosink2:
Could not decode stream.
Additional debug info:                                                          
gstdvbaudiosink.c(388): gst_dvbaudiosink_set_caps ():
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:abin/GstDVBAudioSink:dvbaudiosink2:
hardware decoder can't be set to bypass mode 0                                  
ERROR: pipeline doesn't want to preroll.                                        
Setting pipeline to NULL ...                                                    
FREEING pipeline ...                                                            


// this is probably a different bug, but when i tried supplying a particular
audio-stream, i got a segfault

root at dm8000:/media/hdd/movie/mkv# gst-launch playbin2
uri="file:///media/hdd/movie/mkv/testzdf.mkv" flags ="video+audio"
current-audio=0
Caught SIGSEGV accessing address (nil)
Spinning.  Please run 'gdb gst-launch 16411' to continue debugging, Ctrl-C to
quit, or Ctrl-\ to dump core.
Quit

// here some information about the media file 
# mediainfo /dream/movie/mkv/testzdf.mkv 
General                                                                         
Complete name                    : /dream/movie/mkv/testzdf.mkv                 
Format                           : Matroska                                     
File size                        : 41.9 MiB                                     
Duration                         : 1mn 1s                                       
Overal bit rate                  : 5748 Kbps                                    
Encoded date                     : UTC 2008-09-23 10:32:52                      
Writing application              : mkvmerge v2.2.0 ('Turn It On Again') built
on Jul  7 2008 19:13:42          
Writing library                  : libebml v0.7.8 + libmatroska v0.8.1          

Video
Format                           : MPEG Video
Codec ID                         : V_MPEG2   
Codec ID/Info                    : MPEG 1 or 2 Video
Duration                         : 1mn 1s           
Bit rate                         : 4676 Kbps        
Width                            : 720 pixels       
Height                           : 576 pixels       
Display aspect ratio             : 16/9             
Frame rate                       : 25.000 fps       
Standard                         : PAL              

Audio #1
Format                           : AC-3
Format/Info                      : Audio Coding 3
Codec ID                         : A_AC3         
Duration                         : 1mn 1s        
Bit rate mode                    : Constant      
Bit rate                         : 448 Kbps      
Channel(s)                       : 2 channels    
Channel positions                : L R           
Sampling rate                    : 48.0 KHz      

Audio #2
Format                           : MPEG Audio
Format version                   : Version 1
Format profile                   : Layer 2
Codec ID                         : A_MPEG/L2
Codec ID/Hint                    : MP2
Duration                         : 1mn 1s
Bit rate mode                    : Constant
Bit rate                         : 256 Kbps
Channel(s)                       : 2 channels
Sampling rate                    : 48.0 KHz
Resolution                       : 16 bits
Language                         : German

Audio #3
Format                           : MPEG Audio
Format version                   : Version 1
Format profile                   : Layer 2
Codec ID                         : A_MPEG/L2
Codec ID/Hint                    : MP2
Duration                         : 1mn 1s
Bit rate mode                    : Constant
Bit rate                         : 128 Kbps
Channel(s)                       : 1 channel
Sampling rate                    : 48.0 KHz
Resolution                       : 16 bits


Steps to reproduce:


Actual results:


Expected results:


Does this happen every time?


Other information:


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