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dynamically set nb_samples by samplerate

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Squall Leonhart 2024-11-03 21:58:15 +11:00 committed by GitHub
parent 9d20ce9b59
commit 999400dc53
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1 changed files with 7 additions and 6 deletions
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13
src/components/av_recording/av_recording.cpp
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@ -143,19 +143,20 @@ recording::MediaRet recording::MediaRecorder::setup_audio_stream()
aenc->channel_layout = AV_CH_LAYOUT_STEREO; aenc->channel_layout = AV_CH_LAYOUT_STEREO;
aenc->channels = 2; aenc->channels = 2;
#endif #endif
aenc->time_base = { 1, aenc->sample_rate }; aenc->time_base = (AVRational){1, aenc->sample_rate};
ast->time_base = { 1, STREAM_FRAME_RATE }; ast->time_base = (AVRational){1, STREAM_FRAME_RATE};
// open and use codec on stream
// Open and use codec on stream
int nb_samples; int nb_samples;
if (avcodec_open2(aenc, acodec, NULL) < 0) if (avcodec_open2(aenc, acodec, NULL) < 0)
return MRET_ERR_NOCODEC; return MRET_ERR_NOCODEC;
if (avcodec_parameters_from_context(ast->codecpar, aenc) < 0) if (avcodec_parameters_from_context(ast->codecpar, aenc) < 0)
return MRET_ERR_BUFSIZE; return MRET_ERR_BUFSIZE;
// number of samples per frame
// Calculate number of samples per frame based on sample rate
if (aenc->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE) if (aenc->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)
{ {
//nb_samples = 10000; // can be any value, but we use our aud buffer size nb_samples = (int)(aenc->sample_rate / STREAM_FRAME_RATE);
nb_samples = 1470;
} }
else else
nb_samples = aenc->frame_size; nb_samples = aenc->frame_size;