[gstreamer-bugs] [Bug 608114] New: Unable to decode RAW AAC data

GStreamer (bugzilla.gnome.org) bugzilla at gnome.org
Mon Jan 25 16:51:30 PST 2010


https://bugzilla.gnome.org/show_bug.cgi?id=608114
  GStreamer | gst-plugins-bad | 0.10.14

           Summary: Unable to decode RAW AAC data
    Classification: Desktop
           Product: GStreamer
           Version: 0.10.14
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: Normal
         Component: gst-plugins-bad
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: darryl242 at gmail.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
      GNOME target: ---
     GNOME version: ---


Greetings!

I have searched and searched, and I have not found a solution.  It doesn't seem
like many people are trying to decode RAW AAC streams.  So I am asking for
help...

Using the gst_faad plug-in (or the ffdec_aac) plug-in, I am unable to properly
decode RAW AAC data.  The AAC data is without header.  I looks packetized.  I
am able to use faad to decode the audio to WAV (or other profiles)
successfully.

This works:

# faad libfaad-stream.dat

(Playable libfaad-stream.wav)

This (among any variation I tried over two weeks of trial), does not work.  The
sound output sounds like it's being fast-forwarded:

# gst-launch-0.10 filesrc location=libfaad-stream.dat !
    audio/mpeg,mpegversion=4,channels=2,rate=48000,framed=true !
    decodebin ! autoaudiosink

I have tried passing proper codec_data, the result is the same.  Any ideas?

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