[gstreamer-bugs] [Bug 432533] New: [mad, mp3parse] regression: CVS version doesn't parse duration and bitrates of VBR from xing headers properly

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  GStreamer | gst-plugins-ugly | Ver: HEAD CVS
           Summary: [mad, mp3parse] regression: CVS version doesn't parse
                    duration and bitrates of VBR from xing headers properly
           Product: GStreamer
           Version: HEAD CVS
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: Normal
         Component: gst-plugins-ugly
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: alexl at users.sourceforge.net
         QAContact: gstreamer-bugs at lists.sourceforge.net
                CC: teuf at gnome.org, alexl at users.sourceforge.net
 BugsThisDependsOn: 428021
     GNOME version: 2.15/2.16
   GNOME milestone: Unspecified


+++ This bug was initially created as a clone of Bug #428021 +++

Please describe the problem:

There is a regression between gstreamer-plugins-ugly-0.10.5 and
gstreamer-plugins-ugly CVS, because gstreamer-plugins-ugly 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


Comment #8 from Alex Lancaster (points: 20)
2007-04-23 08:47 UTC [reply]

The problem appears to be with the mpegaudioparse0 element in
gstreamer-plugins-ugly in CVS, if I move this element aside:

[gstreamer-0.10]$ mv -i libgstmpegaudioparse.* /tmp/

and try again with gstreamer (CVS), I get the correct duration/bitrate:

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 "mad0".
        duration: 331000000000
         bitrate: 142803
FOUND TAG      : found by element "mad0".
           layer: 3
            mode: joint
        emphasis: none
     audio codec: MPEG-1 layer 3

The problem appears to be with the mpegaudioparse0 element in
gstreamer-plugins-ugly in CVS, if I move this element aside:

[gstreamer-0.10]$ mv -i libgstmpegaudioparse.* /tmp/

and try again with gstreamer (CVS), I get the correct duration/bitrate:

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 "mad0".
        duration: 331000000000
         bitrate: 142803
FOUND TAG      : found by element "mad0".
           layer: 3
            mode: joint
        emphasis: none
     audio codec: MPEG-1 layer 3


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