Expose MediaCodec metrics

[harini113]

[REQUIRED] Searched documentation and issues

I have searched through the code for on latest v2 release for use of getMetrics() API from MediaCodec and do not see it available.

[REQUIRED] Question

I would like to know if the exoplayer codebase is planning on incorporating the getMetrics api available for mediaCodec
https://developer.android.com/reference/android/media/MediaCodec#getMetrics()

[andrewlewis]

Looks like Toni is planning to look at this [internal: b/77251770].

It's not the same as MediaCodec metrics, but, for what it's worth, we do already expose some information about decoding metrics already via SimpleExoPlayer.getVideoDecoderCounters (ditto for audio) and the decoder counters are also passed to AnalyticsListener.onDecoderEnabled.

[tonihei]

We were particularly working on adding the decoder latency metrics (min/max/average), both overall and for "recent" samples. Would that be sufficient for what you'd like to achieve?

[harini113]

Hi Toni, Thanks for the reply. I was hoping for the same info as what we get when we use getMetrics() API with google's mediaplayer getMetrics() api. Sample logs from my MediaPlayer log. <DurationMS>178701ms</DurationMS> <Dropped>0</Dropped> <VideoCodec>zz.yyy.zzz.avc</VideoCodec> <AudioCodec/> <Width>1920</Width> <Height>1088</Height> <VideoMime>video/avc</VideoMime> <Frames>5358</Frames> <Playing>179149ms</Playing> Thanks Sri

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On Fri, Mar 1, 2019 at 1:01 AM tonihei ***@***.***> wrote: We were particularly working on adding the decoder latency metrics (min/max/average), both overall and for "recent" samples. Would that be sufficient for what you'd like to achieve? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#5585 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AmmeD0o5oBpYVKfgXAlfASwh75FnJTKfks5vSOxzgaJpZM4bX4oi> .

[tonihei]

I think you can obtain all mentioned information by other means already.

DurationMS - player.getDuration()
Dropped - listen to AnalyticsListener.onDroppedVideoFrames
VideoCodec/AudioCodec - listen to AnalyticsListener.onDecoderInitialized and parameter decoderName.
Width/Height/VideoMime - listen to AnalyticsListener.onVideoSizeChanged or AnalyticsListener.onDownstreamFormatChanged.
Playing - player.getCurrentPosition.
Frames - Read values from the DecoderCounters object passed to AnalyticsListener.onDecoderEnabled or
AnalyticsListener.onDecoderDisabled.

[harini113]

Thanks Toni, Can you aslo update the thread on an ETA of when the decoder latency metrics are available. And if you can share info on all getVideoDecoderCounters apis that are available to use? Thanks Sri

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On Mon, Mar 4, 2019 at 1:55 AM tonihei ***@***.***> wrote: I think you can obtain all mentioned information by other means already. DurationMS - player.getDuration() Dropped - listen to AnalyticsListener.onDroppedVideoFrames VideoCodec/AudioCodec - listen to AnalyticsListener.onDecoderInitialized and parameter decoderName. Width/Height/VideoMime - listen to AnalyticsListener.onVideoSizeChanged or AnalyticsListener.onDownstreamFormatChanged. Playing - player.getCurrentPosition. Frames - Read values from the DecoderCounters object passed to AnalyticsListener.onDecoderEnabled or AnalyticsListener.onDecoderDisabled. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#5585 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AmmeD7O8V2GIwbYAhTPklaDzxrOEoBulks5vTO13gaJpZM4bX4oi> .

[tonihei]

We'll post this issue as soon as we are ready.

And if you can share info on all getVideoDecoderCounters apis that are available to use?

Please have a look at the look the documentation to see which values are already reported as part of the DecoderCounters.