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If there are two profiles with the same name in the setup, an undefined behavior occurs. To resolve it, server will use only the last profile with the same name.
Force transcoding of a maximum ABR quality only if there are B-frames in a source stream
To reduce a server load while video encoding, since WCS build 5.2.1840 it is possible to transcode a maximum ABR quality (which is usually the original stream resolution and bitrate) only if there are B-frames in a source stream. The feature may be enabled by the following parameter
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h264_b_frames_force_transcoding=true |
In this case the server will detect B-frames in a stream analizing a certain frames count (10 by default)
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frame_cnt_to_determine_their_type=10 |
If there are B-frames in the stream, the maximum ABR quality will be transcoded and will be available for playback.
If there are no B-frames in the stream, the maximum ABR quality will not be transcoded. The original quality should be requested separately from a playing client.
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Currently, the feature is supported for a single node HLS ABR and WebRTC ABR |
Quick manual on testing
1. For test we use:
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