[gstreamer-bugs] [Bug 605782] New: Feature request: Adaptive Multi-Rate Codec Support

GStreamer (bugzilla.gnome.org) bugzilla at gnome.org
Wed Dec 30 18:12:36 PST 2009


https://bugzilla.gnome.org/show_bug.cgi?id=605782
  GStreamer | gst-plugins | 0.10.25

           Summary: Feature request: Adaptive Multi-Rate Codec Support
    Classification: Desktop
           Product: GStreamer
           Version: 0.10.25
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: komputes at gmail.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
      GNOME target: ---
     GNOME version: ---


More information:
http://www.3gpp.org/ftp/Specs/html-info/26-series.htm
http://en.wikipedia.org/wiki/Adaptive_Multi-Rate
http://ffmpeg.mplayerhq.hu/ffmpeg-doc.html#SEC20
http://www.ffmpeg.org/general.html#TOC2
http://wiki.multimedia.cx/index.php?title=AMR

AMR (Adaptive Multi-Rate) is a vocoder employed in low-bitrate applications
like mobile phones. There are narrowband and wideband variants of this codec.
AMR was adopted as the standard speech codec by 3GPP in October 1998 and is now
widely used in GSM and UMTS.

Example Media:
http://samples.mplayerhq.hu/A-codecs/amr/

Current result:
Audio does not play.

Expected result:
Play audio. If codec is not installed, suggest proper package. Expect codec to
be supported.

There is no codec pack for gstreamer or ffmpeg to play this type of file. The
average user will do the following totem->gstramer->no codec->gnome-app-install
and will get the following error after looking for a codec:

No packages with the requested plugins found
The requested plugins are:
Adaptive Multi Rate (AMR) decoder

This bug was create to request AMR to be supported by gstreamer. If this is not
possible due to legal issues or other roadblocks, please define what the issue
is with supporting this codec.

Tested on:
i386, Ubuntu Desktop 9.10, Linux 2.6.31-15

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