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In this case stream will be transcoded to picture width and height that are requested by subscriber. If subscriber does not set picture height, it wiil be set to 120. If subscriber does not set picture width, it wiil be set to 160.
Transcoder output stream audio and video synchronization
By default transcoder does not synchronize output stream audio and video, leaving sinchronization value as is. This can lead to out of audio and video sync in stream transcoded. To prevent this, the pacer buffer is added in build 5.2.543 which can be enabled with the following parameter
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av_paced_sender=true |
Pacer buffer maximum size is set in frames by the following parameter
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av_paced_sender_max_buffer_size=5000 |
By default pacer buffer size is 5000 frames.
The statistics information received by the following query is uused to control pacer buffer usage
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curl -s 'http://localhost:8081/?action=stat&format=json&groups=buffer_stats' |