Audio data format: MPEG-H low complexity profile, level 4 EncodingOpus Obsolete. Audio data format: OPUS compressed. EncodingPcm24bitPacked Obsolete. Audio data format: PCM 24 bit per sample packed as 3 bytes. EncodingPcm32bit Obsolete. Audio data format: PCM 32 bit per sample. Samp...
if (kEnableExtendedPrecision) { // Specify format (uncomment one below to choose) //config->format = AUDIO_FORMAT_PCM_FLOAT; //config->format = AUDIO_FORMAT_PCM_24_BIT_PACKED; //config->format = AUDIO_FORMAT_PCM_32_BIT; //config->format = AUDIO_FORMAT_PCM_8_24_BIT; // ALOGV("op...
audioChannel = inputAudioFormat.getInteger(MediaFormat.KEY_CHANNEL_COUNT) // 音频采样率 audioSampleRate = inputAudioFormat.getInteger(MediaFormat.KEY_SAMPLE_RATE) val mime = inputAudioFormat.getString(MediaFormat.KEY_MIME) val sampleBitStr = inputAudioFormat.getString(MediaFormat.KEY_PCM_ENCODING) ...
28000,176400,192000"channelMasks="AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_2POINT1 ,AUDIO_CHANNEL_OUT_QUAD,AUDIO_CHANNEL_OUT_PENTA,AUDIO_CHANNEL_OUT_5POINT1,AUDIO_CHANNEL_OUT_6POINT1,AUDIO_CHANNEL_OU T_7POINT1"/><profilename=""format="AUDIO_FORMAT_PCM_24_BIT_PAC...
LinearPCMIsPacked 8 LinearPCMIsSignedInteger 4 LinearPCMSampleFractionMask 8064 LinearPCMSampleFractionShift 7 備註 旗標的核心集描述音訊資料流程的屬性, (整數與浮點值、尾端、交錯) ,而只有在 AudioFormatType 設定為 LinearPCM (這些是 LinearPCM) 或 AppleLossles (列舉值前面加上 AppleLossles) ...
AudioFormatFlags mFormatFlags 描述采样点表示的格式(用int还是用float,是大端还是小端),声道布局(是平面还是交错),可以组合使用。 ffmpeg 中描述采样点格式如下: $ ffmpeg -formats | grep PCM DE alaw PCM A-law DE f32be PCM 32-bit floating-point big-endian ...
For the example format, the diagram below indicates the order that coded bytes are packed into the packet payload in terms of sample byte significance. The following abbreviations are used. MSB: Most Significant Byte of a 24-bit coded sample ...
*/enum{// FIXME this representation permits up to 8 channelsNEEDS_CHANNEL_COUNT__MASK=0x00000007,};enum{NEEDS_CHANNEL_1=0x00000000,// monoNEEDS_CHANNEL_2=0x00000001,// stereo// sample format is not explicitly specified, and is assumed to be AUDIO_FORMAT_PCM_16_BITNEEDS_MUTE=0x00000100,...
audioFormat 音频数据格式,这里实际使用的是 AudioFormat.ENCODING_PCM_16BIT,即PCM 16 bit的数据格式。 bufferSize 系统创建AudioRecord时使用的缓冲区大小,这里使用了两个数值的较大者:通过AudioRecord.getMinBufferSize接口获取的最小缓冲区大小的两倍,读取数据的ByteBuffer的容量。通过注释我们可以了解到,考虑最小缓冲...
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