← Back to team overview

medibuntu-maintainers team mailing list archive

[Bug 93849] Re: Feature request: Adaptive Multi-Rate Codec Support

 

** Description changed:

  Binary package hint: ffmpeg
  
- Mplayer and Totem/gstreamer cannot play *.amr audio files
- and also play only video part of widely used Nokia phone's *.3gp files
- (due to its audio part is in AMR NR format).
- FFmpeg which is used in mplayer and totem for codecs can
- be build with AMR support as described in http://ffmpeg.mplayerhq.hu/ffmpeg-doc.html#SEC20
+ 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. FFmpeg
+ should be able to decode AMR with OpenCORE AMR libraries (package:
+ libopencore-amrnb0) but does not.
+ 
+ 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 gives the following error after looking for a codec:
+ 
+ No packages with the requested plugins found
+ The requested plugins are:
+ Adaptive Multi Rate (AMR) decoder
+ 
+ VLC reports the following error when opening the video:
+ No suitable decoder module:VLC does not support the audio or video format "samr". Unfortunately there is no way for you to fix this.
+ 
+ This bug was create to request AMR to be supported by gstreamer and
+ ffmpeg. 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

-- 
Feature request: Adaptive Multi-Rate Codec Support
https://bugs.launchpad.net/bugs/93849
You received this bug notification because you are a member of Medibuntu
Packaging Team, which is a direct subscriber.