videotoolbox failed to encode after a background switch operation

[Ray Wang]

Hi:

I'm using videotoolbox on iOS for H.264 hardware encoding & decoding, it works fine, but when i put application into background and switch it back again, 

the encoding and decoding will fail, here is the logs:

[293:593] [21935] (h264_video_toolbox_decoder.cc:179): Failed to decode frame with code: -12903

[293:593] [21935] (generic_decoder.cc:169): Failed to decode frame with timestamp 2671369406, error code: -1

[293:276] [17363] (h264_video_toolbox_encoder.cc:64): VTSessionSetProperty failed to set: AverageBitRate to 97000: -12903

[293:276] [17363] (h264_video_toolbox_encoder.cc:281): Failed to create pixel buffer: -6661

[293:276] [17363] (video_sender.cc:321): Failed to encode frame. Error code: -1

it seems that VTCompressionSession instance was broken after a background switch, i have no idea why this is happening, please help if anyone knows.

[Christoffer Jansson]

Hi,

I would ask you to file a bug for this but the WebRTC tracker does not accept new issues atm as mentioned in this post.

Once it's up again I will let you know.

+Zeke Chin do you know if this is a known issue?

/Chris

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[Zeke Chin]

https://bugs.chromium.org/p/webrtc/issues/detail?id=5344

[Ray Wang]

Thanks, this bug seems exactly the same, but the patch can not solve the encoder side.

在 2016年1月5日星期二 UTC+8上午1:02:12，Zeke Chin写道：