1059613 - MediaCodecReader playback sometimes doesn't trigger EOS to StateMachine?

Status: RESOLVED WONTFIX

(Core :: Audio/Video, defect)

Description

[Benjamin Chen [:bechen]]

After bug 1043900, the MediaCodecReader should handle EOS properly.
Bug during these days, I found sometimes the stream does not trigger EOS.

STR:
1. enable MediaCoder preference.
2. open browser to view a HTTP streaming (I use a MP4 file)
3. sometimes the EOS is not triggered at the end of stream. (maybe 20%?)

Not sure how to reproduce it, but once it happened, we can reproduce it by play the stream again. And then if I press home key to close the process, it won't happened again.

Comment 1

[Benjamin Chen [:bechen]]

Update status:
I have verified the StateMachine go into DECODER_STATE_COMPLETED when the issue happened.
http://dxr.mozilla.org/mozilla-central/source/content/media/MediaDecoderStateMachine.cpp#2405

But the control bar still keeps on the "pause icon". So we can exclude MediaCodecReader because it had invoked OnAudioEOS and OnVideoEOS.

Comment 2

[Benjamin Chen [:bechen]]

After some investigation, the audio thread stuck in AudioStream::Write function because the buffer is full.

And we think it's audio driver's problem because the flame device I used can not output any sounds even dtmf. By Randy's help, he tries to make a phone call on this device and then the audio driver seems be fixed or restart. Once the device can output sounds, the eos problem goes away.