1203859 - Implement a PlatformDecoderModule by using OpenMax

Status: RESOLVED DUPLICATE of bug 1306529

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

Description

[Alfredo Yang (:alfredo)]

Current Gonk PlatformDecoderModule is based on Android MediaCodec which has following problems.
1. It can't support try tests in current ICS environment on try server.
2. It is not a standard interface. We need to modify it if any API is changed. For example, MediaCodec API is different between Andoird KK to L.

Goal:
Implement an OpenMax client to use OpenMax IL (IOMX on Android). This client implements PlatformDecoderModule and its own buffer manager.

Comment 1

[Sotaro Ikeda [:sotaro]]

It seems nice if we could avoid to sync wait dequeue buffer. Its timing could be notified like MediaCodecSource in L.
   https://github.com/sotaroikeda/android-diagrams/blob/master/media/MediaCodecSource_5.1.pdf

Comment 2

[Alfredo Yang (:alfredo)]

(In reply to Sotaro Ikeda [:sotaro] from comment #1)
> It seems nice if we could avoid to sync wait dequeue buffer. Its timing
> could be notified like MediaCodecSource in L.
>   
> https://github.com/sotaroikeda/android-diagrams/blob/master/media/
> MediaCodecSource_5.1.pdf

Yes, it's also one of goals, to get rid of stagefright.

Comment 3

[Alfredo Yang (:alfredo)]

Current plan:

1. add openmax il audio decoder.
2. add openmax il video decoder.
3. enable MSE test case on try emulator
4. replace GonkDecoderModule with openmax il PDM.
5. enable others media test cases on try emulator
6. remove all other Gonk decoder modules from gecko.
7. add GMP to openmax il PDM.
8. replace IOMX with real openmax il api on gonk (get rid of mediaserver)

Time line:
1, 2, 3, and 4 could be next release of Firefox OS (3.0?).

Comment 4

[Blake Wu [:bwu][:blakewu]]

(In reply to Alfredo Yang (:alfredo) from comment #3)
> Current plan:
> 
> 1. add openmax il audio decoder.
> 2. add openmax il video decoder.
> 3. enable MSE test case on try emulator
> 4. replace GonkDecoderModule with openmax il PDM.
> 5. enable others media test cases on try emulator
> 6. remove all other Gonk decoder modules from gecko.
> 7. add GMP to openmax il PDM.
> 8. replace IOMX with real openmax il api on gonk (get rid of mediaserver)
> 
> Time line:
> 1, 2, 3, and 4 could be next release of Firefox OS (3.0?).
After 2.5, next version is 2.6 and its FC date could be in May. :)

Comment 5

[Sotaro Ikeda [:sotaro]]

I created bug 1228183 as to handle OMX_StatePause problem.

Comment 6

[Ralph Giles (:rillian)]

Firefox OS is no longer relevant, but this would still be useful for desktop Firefox on RaspberryPi and other small arm-linux platforms like display signage.

Comment 7

[Jean-Yves Avenard [:jya]]

This was implemented in bug 1306529