1264841 - Prototyping a external renderer for GMP by other media player on Linux

Status: RESOLVED WONTFIX

(Core :: Audio/Video: GMP, defect, P5)

Description

[Kilik Kuo [:kikuo] (inactive)]

I'd like to setup a non-firefox playback application to act as an GMP external (HW) renderer(even a decoder+renderer) to explore the feasibility of GMP Renderer API.

Comment 1

[Kilik Kuo [:kikuo] (inactive)]

The idea is to
1. Create a GUI application via python + wxPython. [1]
 - To demonstrate the playback window position could be aligned while browser is moving/resizing.
2. Actual playback process is created by MPlayer 1.3.0 [2]
 - To demonstrate the start/stop/pause/seek/playback information could be achieved.
3. Using MplyaerCtrl 0.33 to communicate between 1,2

[1] http://www.wxpython.org/
[2] http://www.mplayerhq.hu/design7/news.html
[3] https://pythonhosted.org/MplayerCtrl/reference.html#mplayerctrl-class

4. A communication between GMP Child and the GUI application should be developed
 - a) Using named-pipe should be easier and sufficient for demonstration.
 - b) Embedding python interpreter [4] in GMP child so that we don't need to do a), but extra swig implementation may be needed.
[4] https://docs.python.org/2/extending/embedding.html

Comment 2

[Kilik Kuo [:kikuo] (inactive)]

Attachment: [WIP] Python GUI Application which creates mplayer for playback.

With requirement software mentioned above installed. Modify the path for mediaFile then run this file, you can see.

1) A GUI application will be launched,
2) mplayer will start playback.
3) A timer(callback every 100ms) to update the slider thumb(every 1s).

TODO 
 - Add a IPC namedpipe reader/writer to receive command from GMP child process.
 - Provide function to support window position/size update.
 - Provide functions to support calling mplayer start/stop/pause playback & seek.
 - Notify current playback position back to GMP child.

I'll slow down the prototyping because it's low priority now.

Comment 3

[Darkspirit]

bug 1210726