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Commitbd24d5b

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StreamTranscoder: fix positive offset in case of codec latency
1 parente644bb6 commitbd24d5b

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‎src/AvTranscoder/transcoder/StreamTranscoder.cpp

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Original file line numberDiff line numberDiff line change
@@ -588,6 +588,15 @@ void StreamTranscoder::preProcessCodecLatency()
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wasARewrapCase =true;
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}
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if(_offset >0) {
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constdouble fps =1.0 * _outputEncoder->getCodec().getAVCodecContext().time_base.den /
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(_outputEncoder->getCodec().getAVCodecContext().time_base.num * _outputEncoder->getCodec().getAVCodecContext().ticks_per_frame);
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constdouble frame_duration =1.0 / fps;
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constdouble output_latency_duration = frame_duration * (latency -1);
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LOG_WARN("Compensate for offset with codec latency by" << output_latency_duration <<" seconds (fps=" << fps <<", latency=" << latency <<")");
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_offset -= output_latency_duration;
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}
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while((latency--) >0)
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{
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processFrame();

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