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

1. It works on Firefox platform only.
2. 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.

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		MPEG-4
	PCM	mono/ stereo	Wave
Video	H.264	Baseline Profile	MPEG-4
	VP8		WebM

Encoder framework

Encoding framework META issues:

• bug 879688: [Meta] Implement MediaEncoder
• bug 842243: Implement Audio encoding path
• bug 879669: Implement Video encoding path

You may trace progress of recording via these three.

TODO: encoding pipeline diagram.

Codec/ Container support

B2G

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

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

Mac

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

Reference

• Meeting Minutes

https://taiwan.etherpad.mozilla.org/247

• MediaStream Recording

http://www.w3.org/TR/2013/WD-mediastream-recording-20130205/

• Image Capture

API for taking photo shot

https://dvcs.w3.org/hg/dap/raw-file/tip/media-stream-capture/ImageCapture.html

• HTML media capture (only supports simple capture functionalities)

http://www.w3.org/TR/html-media-capture/

• Android JB encoder matrix

http://developer.android.com/guide/appendix/media-formats.html

• iOS encorder matrix

http://developer.apple.com/library/ios/#Documentation/AudioVideo/Conceptual/MultimediaPG/UsingAudio/UsingAudio.html

• Firefox playback format

https://developer.mozilla.org/en-US/docs/HTML/Supported_media_formats