TPEPlatform/MediaRecorder

Summary

We already have mozCamera for take photo or video recording. mozCamera itself is not part of any standard web spec, which means

It works on Firefox platform only.
Totally isolate in media world. There is no way to connect data stream from mozCamera with media processing module, such as WebAudio, or recording module, such as MediaRecorder.

MediaRecorder takes media stream, which may come from web audio or media source or user media, as input. User may process all these media streams before recording. In mozCamera, there is nothing that user can do between capturerer and recorder, except canned video effect.

Regarding to architecture of Encoding framework, please visit "MediaEncoder Framework".

Track Encoder Milestone

The following table reveals encode and associate container format we are going to support:

Type	Encoder	Detailed	Container
Audio	Opus	mono/ stereo	Ogg
	Vobis	mono/ stereo	Ogg
	AAC	mono/ stereo/ 5.0/ 5.1	MPEG-4
	PCM	16 bit LPCM	Wave
Video	H.264	Baseline Profile	MPEG-4
Video	VP8		WebM

List pros and cons for each audio/ video codec. We need more clear view to prioritize codec support sequence.

Requirements for a video codec, which is the way to we prioritize encoder support:

Image quality
Performance
Power consumption
Hardware support
Licensing

META Issues

META bugs for Encoding framework:

Bug No	Description
bug 803414	WebAPI: Implementation MediaRecorder API
bug 879688	Framework: Implement MediaEncoder
bug 842243	Framework: Implement Audio encoding path
bug 879669	Framework: Implement Video encoding path
bug 888177	WebAPI: Implement ImageCapture API

Testing Plan

Jason Smith: https://etherpad.mozilla.org/media-recording-testing

Bug No	Description	Statue	Target	Assigned
bug 889772	Audio Recording - Marionette Test Case	Open	Gecko 25	Randy Lin
TBD	Video Recording - Marionette Test Case	Open	Gecko 26	Randy Lin

Codec/ Container support

Schedule is not well define yet. All the information list bellow is not confirmed.

B2G

Type	Milestone	Target	Issue	Assignee
Audio	Opus/ OGG	Gecko 24	bug 842243	Shelly
	LPCM/ Wav	TBD
	~~MP3~~	~~Not defined~~	~~bug 884162~~
Video	H.264/ AAC/ MP4	Gecko 28	bug 879668
	VP8/ Vobis/ WebM	Gecko 27	bug 881840
	VP9/ Opus/ WebM	??/??	TBD

Android

Milestone	Target	Issue	Assignee
Opus/ OGG	6/14	bug 842243	Shelly

Linux

Milestone	Target	Issue	Assignee
Opus/ OGG	6/14	bug 842243	Shelly

Windows

Milestone	Target Date	Issue No	Assignee
Opus/ OGG	6/14	bug 842243	Shelly

MacOS

Milestone	Target Date	Issue No	Assignee
Opus/ OGG	6/14	bug 842243	Shelly