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2,571 bytes added, 16:05, 13 September 2011
Reverted SPAM link
let people contribute to specific bounties through paypal.
=== Xiph Quicktime Plugin ===
[ QuickTime Components] is now a project hosted on
=== OggVorbis 5.1 ===
5.1 Sound encoding in Ogg Vorbis.
There are two steps here. Simple coupling and lowpass for the .1 channel, and a full set of tuned modes.
They should be separate bounties.
=== Xiph Quicktime Plugin ===
You have to write a Quicktime Plugin for the Ogg container and the Xiph Codec Family.
[ qtcomponents] provides support for Ogg Vorbis and MNG. This could be used as start.
Xiph Quicktime Plugin has to support endocdingencoding/decoding for:* Ogg Media container **[ qtcomponents] ''has an operational pluggable API for import, it needs some work to be long term supportable. It does not have a pluggable API for exporting at this time.''
* Support for Chained Ogg Streams
**[ qtcomponents] ''imports chained files as multiple tracks in QuickTime. It does not create chained files during export.''
* Support for Icecast Streams (sending is optional)
**[ qtcomponents] ''implements nothing towards this item. First up is a reverse-engineering effort, as the specifications for a streaming media handler have not been published.''
* Support for Xiph Codec Family: Vorbis, Theora, FLAC, Speex, Writ
**[ qtcomponents] ''has code for Vorbis and Speex (not working at the moment) and there is code at [ Damien Drix's site] for FLAC (decode only).''
It must also be possible to use the Xiph codecs in .mov files in combination with other quicktime codecs.
*[ qtcomponents] ''supports embedding media encoded with Xiph codes into .mov files.''
The plugin should work with at least QuickTime 6.x and 7.x on Mac OS X and Windows. (Mac OS 9 would be nice but probably isn't as important.)
All work must be released under the GPL. Proposed bounty: 100€ === iTunes Aggressive low-bitrate libvorbis encoding support improvements for Vorbis I ===Encoding support libvorbis has a lot of room for improvement in all quality/bitrate departments, particularly at the lower quality levels / bitrates. There are many directions from which to approach this problem. To claim this bounty, the following criteria would have to be met:* A 25%-or-better reduction in Apple's iTunes program bitrate for quality levels -1, 0, 1 on a reasonable testsuite while maintaining qualitative equivilence (or improvement) in community testing.* No overall qualitative/bitrate regressions in quality levels 2 upwards* Output ogg files compatible with Vorbis and FLAC. Speex optionalI spec* Changes under suitable license for re-integration with Xiph.Org libvorbis Proposed bounty: 200€
=== iPod playback support ===
for useful playback.
=== FLAC support in libfishsound ===libfishsound currently only supports Ogg Vorbis and Ogg Speexto make it support all Xiph audio codecs you have to add FLAC support.Proposed bounty: 100€
=== Ogg Vorbis Bitrate Peeling ===
It :Note: a bounty for this project has been mentioned that implementing posted on []: [ Add bitrate peeling to the standard libvorbis encoding library].<p>Ogg Vorbis bitrate peeling requires has been a lot of work topic brought up time and most likely changes inagain to combat MP3 enthusiasts. But this feature does not actually exist, only the encodermere possibility abounds. This bounty is set to change that.</p>The peeler must meet the following criteria:* Any Vorbis stream can be converted (not transcoded) to a lower quality setting* Resulting streams would include changes be identical or nearly identical to a stream generated by encoding the encoder necessary original source to implement bitrate peeling, as well as the bitrate peeler itself. Note selected quality* This process is reasonably fast (that this is a fully, signifigantly faster than re-functional bitrate peeler, not like the april fool's joke that came out last year (2003encoding from source).Several people are willing to donate The following must also be accomplished to claim this bounty:* The encoding libraries must be updated to create <em>peelable</em> Vorbis streams natively* Old Vorbis streams must be <em>peelable</em> already, or convertable with a utility in order to be made <em>peelable</em>* If older streams are not natively <em>peelable</em>, old <em>unpeelable</em> Vorbis streams must be identifiable and discernable from <em>peelable</em> streams in such a way as to facilitate transcoding streams from the initial goal being $500.old format* All work submitted must be licenced under a BSD style licence (excepting circumstances where other licences may conflict) Proposed bounty: 100€

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