bugGnash - The GNU Flash player - Bugs: bug #24649, AudioDecoderFfmpeg: could not...

 
 

bug #24649: AudioDecoderFfmpeg: could not initialize a parser for ffmpeg codec id 86021

Submitted by:  Sandro Santilli <strk>
Submitted on:  Sat Oct 25 17:00:42 2008  
 
Category: video-ffmpegSeverity: 3 - Normal
Release: NoneStatus: Confirmed
Privacy: PublicAssigned to: None
Open/Closed: Open

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Thu Jul 28 12:52:02 2011, comment #4:

Reassigning to sortie, who's working on refactoring of AudioDecoder interface.

Sandro Santilli <strk>
Project Member
Sun Feb 20 03:23:46 2011, comment #3:

The synchronisation issue appears to be caused by the lack of timestamps provided by the container format of the input file. (Or, potentially, ffmpeg fails to recognise them.) Timestamps will therefore not be known prior to decoding, and after that could only be construed by counting samples provided by the decoder.

Playback synchronisation is presently dependent on the availability of accurate timestamps.

Bastiaan Jacques <bjacques>
Project Member
Sun Feb 20 02:58:13 2011, comment #2:

There are two distinct issues here:

1. The AudioDecoderFfmpeg class insists on creating a parser for audio streams, but ffmpeg does not provide one for Vorbis. A decoder is available, which works fine. Nonetheless, AudioDecoderFfmpeg bails out because of the lack of parser.

2. When that hurdle is removed, a synchronisation issue appears; this may be related to the first frame of encoded audio not producing an output, which is only available after the second frame is decoded. I also see a lot of buffer overrun warnings for decoded audio frames.

Bastiaan Jacques <bjacques>
Project Member
Sat Feb 12 21:27:16 2011, comment #1:

It plays fine with gst.

With ffmpeg, no audio.

10923:1] 22:08:43 ERROR: Could not create Audio decoder: AudioDecoderFfmpeg: could not initialize a parser for ffmpeg codec id 86021

- debian amd64 squeeze

Gabriele Giacone <gg0>
Project Member
Sat Oct 25 17:00:42 2008, original submission:

easyvideo.swf?url=kiro.ogg

ERROR: MediaParserGst failed to push more data into the demuxer! Seeking back.
ERROR: Error decoding encoded video frame in NetStream input
ERROR: nextVideoFrameTimestamp returned true (0), but decodeNextVideoFrame returned null, I don't think this should ever happen
ERROR: Error decoding encoded video frame in NetStream input
ERROR: nextVideoFrameTimestamp returned true (0), but decodeNextVideoFrame returned null, I don't think this should ever happen

Only a small portion of initial sound can be heared,
no video at all (blank).

Haven't tried ffmpeg actually, so dunno yet if it's only
a MediaParserGst issue...

Sandro Santilli <strk>
Project Member

 

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Carbon-Copy List
  • -unavailable- added by sortie (Updated the item)
  • -unavailable- added by gg0 (Posted a comment)
  • -unavailable- added by bjacques (Updated the item)
  • -unavailable- added by strk (Submitted the item)
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    Follow 10 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Sun Oct 16 12:00:53 2016sortieAssigned tosortie=>None
    Thu Jul 28 12:52:02 2011strkAssigned toNone=>sortie
    Sun Feb 20 02:58:13 2011bjacquesCategoryvideo-gst=>video-ffmpeg
      StatusWorks For Me=>Confirmed
      Assigned tobjacques=>None
      SummaryERROR: MediaParserGst failed to push more data into the demuxer! Seeking back.=>AudioDecoderFfmpeg: could not initialize a parser for ffmpeg codec id 86021
    Sat Feb 12 21:28:41 2011gg0Open/ClosedClosed=>Open
    Sat Feb 12 21:27:16 2011gg0Severity5 - Blocker=>3 - Normal
      Open/ClosedOpen=>Closed
    Sat Feb 28 18:37:46 2009bjacquesStatusNone=>Works For Me

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