astrm->setFrameRate(cCtx->sample_rate); astrm->setChannels(cCtx->channels);// Decode streamAVPacket avpkt; av_init_packet(&avpkt);intbad_pkt_count =0;while(av_read_frame(fCtx, &avpkt) ==0){if(avpkt.stream_index == audioStream)try{if(decodePacket(cCtx, &avpkt, astrm) !=0...
SetPlaybackHeadPosition SetPlaybackPositionUpdateListener SetPlaybackRate SetPositionNotificationPeriod SetPreferredDevice SetPresentation SetStartThresholdInFrames SetState SetStereoVolume SetVolume 停止 UnregisterStreamEventCallback 写 WriteAsync 事件 AudioTrack.Builder AudioTrack.CodecFormatChangedEventArgs AudioTrack....
letaudiosession=AVAudioSession.sharedInstance()do{tryaudiosession.setPreferredSampleRate(16000)tryaudiosession.setPreferredIOBufferDuration(0.016)tryaudiosession.setActive(true,options:AVAudioSession.SetActiveOptions.notifyOthersOnDeactivation)}catch{print(error)} 采样率为16k IOBufferDuration为0.016s 2.设置引擎...
Not setDetermines the frame rate. The value defaults to 15 fps. You can change the frame rate to any value. srcAudioInId** rtav.srcAudioInId** Not setDetermines the preferred microphone (audio-in device). When this value is not set, RTAV uses the default recording device set in the...
wf=wave.open('test.wav','wb')wf.setnchannels(channels)wf.setsampwidth(p.get_sample_size(format_sample))wf.setframerate(fps) 为了后续代码可以很好的与之结合复用,将上面的代码包装成类 代码语言:javascript 复制 from pyaudioimportPyAudioclassAudioRecord(PyAudio):def__init__(self,): ...
Apacketis a collection of one or more contiguous frames. A packet defines the smallest meaningful set of frames for a given audio data format, and is the smallest data unit for which time can be measured. In linear PCM audio, a packet holds a single frame. In compressed formats, it typi...
// set audio session NSError *error = nil; AVAudioSession *audioSession = [AVAudioSession sharedInstance]; [audioSession setCategory:AVAudioSessionCategoryPlayback error:&error]; [audioSession setActive:YES error:&error]; 2、配置音频组件Audio Unit 并描述输出的单元 ...
if (track.setResampler(uint32_t(valueInt), mSampleRate)) { // 新建或查找1个Resampler对象 ALOGV("setParameter(RESAMPLE, SAMPLE_RATE, %u)", uint32_t(valueInt)); invalidateState(1 << name); // 使设置生效,调用重采样的后续处理函数 ...
SetPlaybackHeadPosition SetPlaybackPositionUpdateListener SetPlaybackRate SetPositionNotificationPeriod SetPreferredDevice SetPresentation SetStartThresholdInFrames SetState SetStereoVolume SetVolume Stop UnregisterStreamEventCallback Write WriteAsync Events AudioTrack.Builder AudioTrack.CodecFormatChangedEventArgs AudioTra...
AudioFrameInputNode frameInputNode; C# privatevoidCreateFrameInputNode(){// Create the FrameInputNode at the same format as the graph, except explicitly set mono.AudioEncodingProperties nodeEncodingProperties = audioGraph.EncodingProperties; nodeEncodingProperties.ChannelCount =1; frameInputNode = audioGr...