154 uint32_t ByteRate(size_t num_channels,  in ByteRate()  argument
157   return static_cast<uint32_t>(num_channels * sample_rate * bytes_per_sample);  in ByteRate()
160 uint16_t BlockAlign(size_t num_channels, size_t bytes_per_sample) {  in BlockAlign()  argument
161   return static_cast<uint16_t>(num_channels * bytes_per_sample);  in BlockAlign()
203 void WritePcmWavHeader(size_t num_channels,  in WritePcmWavHeader()  argument
221   header.fmt.NumChannels = static_cast<uint16_t>(num_channels);  in WritePcmWavHeader()
223   header.fmt.ByteRate = ByteRate(num_channels, sample_rate, bytes_per_sample);  in WritePcmWavHeader()
224   header.fmt.BlockAlign = BlockAlign(num_channels, bytes_per_sample);  in WritePcmWavHeader()
234 void WriteIeeeFloatWavHeader(size_t num_channels,  in WriteIeeeFloatWavHeader()  argument
253   header.fmt.NumChannels = static_cast<uint16_t>(num_channels);  in WriteIeeeFloatWavHeader()
255   header.fmt.ByteRate = ByteRate(num_channels, sample_rate, bytes_per_sample);  in WriteIeeeFloatWavHeader()
256   header.fmt.BlockAlign = BlockAlign(num_channels, bytes_per_sample);  in WriteIeeeFloatWavHeader()
261   header.fact.SampleLength = static_cast<uint32_t>(num_channels * num_samples);  in WriteIeeeFloatWavHeader()
287 bool CheckWavParameters(size_t num_channels,  in CheckWavParameters()  argument
295   if (num_channels == 0 || sample_rate <= 0 || bytes_per_sample == 0)  in CheckWavParameters()
299   if (num_channels > std::numeric_limits<uint16_t>::max())  in CheckWavParameters()
304   if (static_cast<uint64_t>(sample_rate) * num_channels * bytes_per_sample >  in CheckWavParameters()
337   if (num_samples % num_channels != 0)  in CheckWavParameters()
345 bool CheckWavParameters(size_t num_channels,  in CheckWavParameters()  argument
349   return CheckWavParameters(num_channels, sample_rate, format,  in CheckWavParameters()
353 void WriteWavHeader(size_t num_channels,  in WriteWavHeader()  argument
363   RTC_CHECK(CheckWavParameters(num_channels, sample_rate, format,  in WriteWavHeader()
366     WritePcmWavHeader(num_channels, sample_rate, bytes_per_sample, num_samples,  in WriteWavHeader()
370     WriteIeeeFloatWavHeader(num_channels, sample_rate, bytes_per_sample,  in WriteWavHeader()
376                    size_t* num_channels,  in ReadWavHeader()  argument
412   *num_channels = header.fmt.NumChannels;  in ReadWavHeader()
427       ByteRate(*num_channels, *sample_rate, *bytes_per_sample))  in ReadWavHeader()
429   if (header.fmt.BlockAlign != BlockAlign(*num_channels, *bytes_per_sample))  in ReadWavHeader()
432   if (!CheckWavParameters(*num_channels, *sample_rate, *format,  in ReadWavHeader()