[gstreamer-bugs] [Bug 428021] [mad, mp3parse] better duration estimates for VBR

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-ugly | Ver: HEAD CVS

Alex Lancaster changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |alexl at users.sourceforge.net




------- Comment #7 from Alex Lancaster  2007-04-23 08:33 UTC -------
It seems like something has changed between gstreamer-0.10.11 and gstreamer
CVS, because gstreamer 0.10.11 (on Fedora Core 6) gets the duration correct but
CVS doesn't, as show by the following gst-launch outputs:

Here is the gstreamer 0.10.11 output (note the bitrate of 142803 bps and the
duration):

gst-launch -t playbin uri=file:///tmp/foobar.mp3

Pipeline is PREROLLING ...
FOUND TAG      : found by element "id3demux0".
           title: Awake
          artist: Faultline
     track count: 9
    track number: 1
           album: Closer Colder
           genre: Unknown
         encoder: Rhythmbox 5641861
            date: 1999-01-01
        track ID: 7a405e7e-d0a9-4299-a786-1f2aee03faaa
       artist ID: f42ce12a-5007-48b0-8730-f2348784fac6
        album ID: 13d036da-0f87-4cf5-a12e-5928122f2582
 album artist ID: f42ce12a-5007-48b0-8730-f2348784fac6
     ID3v2 frame: buffer of 20 bytes, type: application/x-gst-id3v2-tsop-frame,
version=(int)4
FOUND TAG      : found by element "mad0".
        duration: 331000000000
         bitrate: 142803
FOUND TAG      : found by element "mad0".
           layer: 3
            mode: joint
        emphasis: none
     audio codec: MPEG-1 layer 3

here is the output for gstreamer CVS (as of 2007-04-23), which shows a bitrate
of 32000 bps


Pipeline is PREROLLING ...
FOUND TAG      : found by element "id3demux0".
           title: Awake
          artist: Faultline
     track count: 9
    track number: 1
           album: Closer Colder
           genre: Unknown
         encoder: Rhythmbox 5641861
            date: 1999-01-01
        track ID: 7a405e7e-d0a9-4299-a786-1f2aee03faaa
       artist ID: f42ce12a-5007-48b0-8730-f2348784fac6
        album ID: 13d036da-0f87-4cf5-a12e-5928122f2582
 album artist ID: f42ce12a-5007-48b0-8730-f2348784fac6
 artist sortname: Faultline
FOUND TAG      : found by element "mpegaudioparse0".
         bitrate: 32000
FOUND TAG      : found by element "mad0".
           layer: 3
            mode: joint
        emphasis: none
         bitrate: 32000


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