[Bug 569305] [mgpegvideoparse] not all tags show up in gst.extend.discoverer

GStreamer (bugzilla.gnome.org) bugzilla at gnome.org
Sun Mar 27 13:36:56 PDT 2011


https://bugzilla.gnome.org/show_bug.cgi?id=569305
  GStreamer | gst-plugins-bad | git

Stefan Kost (gstreamer, gtkdoc dev) <ensonic> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
                 CC|                            |ensonic at sonicpulse.de
            Summary|not all tags show up in     |[mgpegvideoparse] not all
                   |gst.extend.discoverer       |tags show up in
                   |                            |gst.extend.discoverer
     Ever Confirmed|0                           |1

--- Comment #3 from Stefan Kost (gstreamer, gtkdoc dev) <ensonic at sonicpulse.de> 2011-03-27 20:36:50 UTC ---
The length is fluctuating in when discovering the stream. Once downloaded its
fine.

gst-discoverer-0.10 Aljazeeraasset-WarOnGazaDay18793.mpg\?brs\=5223\&bri\=54.0 
Analyzing
file:///home/ensonic/Desktop/Aljazeeraasset-WarOnGazaDay18793.mpg%3Fbrs=5223&bri=54.0
Done discovering
file:///home/ensonic/Desktop/Aljazeeraasset-WarOnGazaDay18793.mpg%3Fbrs=5223&bri=54.0

Topology:
  container: MPEG-2 System Stream
    audio: MPEG-1 Layer 2 (MP2)
    video: MPEG-2 Video

Properties:
  Duration: 0:14:07.744000000
  Seekable: yes
  Tags: 
      audio codec: MPEG 1 Audio, Layer 2
      nominal bitrate: 224000
      has crc: false
      channel mode: stereo
      bitrate: 6000000
      layer: 2
      mode: stereo
      emphasis: none

gst-discoverer-0.10
http://blip.tv/file/get/Aljazeeraasset-WarOnGazaDay18793.mpg
Analyzing http://blip.tv/file/get/Aljazeeraasset-WarOnGazaDay18793.mpg
Done discovering http://blip.tv/file/get/Aljazeeraasset-WarOnGazaDay18793.mpg

Topology:
  container: MPEG-2 System Stream
    audio: MPEG-1 Layer 2 (MP2)
    video: MPEG-2 Video

Properties:
  Duration: 0:11:42.778655555
  Seekable: yes
  Tags: 
      bitrate: 6000000
      audio codec: MPEG 1 Audio, Layer 2
      nominal bitrate: 224000
      has crc: false
      channel mode: stereo
      layer: 2
      mode: stereo
      emphasis: none


The missing video-tage seems to be a mpegvideoparse issue:

gst-launch -t playbin2
uri=http://blip.tv/file/get/Aljazeeraasset-WarOnGazaDay18793.mpg
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
FOUND TAG      : found by element "mpegvideoparse0".
         bitrate: 6000000
FOUND TAG      : found by element "mpegaudioparse0".
     audio codec: MPEG 1 Audio, Layer 2
 nominal bitrate: 224000
FOUND TAG      : found by element "mpegaudioparse0".
         has crc: FALSE
    channel mode: stereo
FOUND TAG      : found by element "mad0".
           layer: 2
            mode: stereo
        emphasis: none
         bitrate: 224000
FOUND TAG      : found by element "mpegaudioparse0".
 minimum bitrate: 224000
         bitrate: 224000
 maximum bitrate: 224000

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