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ao_wasapi: simplify nAvgBytesPerSec calculation

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Calculate nBlockAlign seperately to reuse in the calculation of
nAvgBytesPerSec.
This commit is contained in:
Marcoen Hirschberg 2014-05-27 15:31:09 +02:00 committed by wm4
parent 31a10f7c38
commit 1fa48a2452
1 changed files with 3 additions and 4 deletions
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7
audio/out/ao_wasapi_utils.c
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@ -125,13 +125,12 @@ const char *wasapi_explain_err(const HRESULT hr)
static void set_format(WAVEFORMATEXTENSIBLE *wformat, WORD bytepersample, static void set_format(WAVEFORMATEXTENSIBLE *wformat, WORD bytepersample,
DWORD samplerate, WORD channels, DWORD chanmask) DWORD samplerate, WORD channels, DWORD chanmask)
{ {
int block_align = channels * bytepersample;
wformat->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE; /* Only PCM is supported */ wformat->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE; /* Only PCM is supported */
wformat->Format.nChannels = channels; wformat->Format.nChannels = channels;
wformat->Format.nSamplesPerSec = samplerate; wformat->Format.nSamplesPerSec = samplerate;
wformat->Format.nAvgBytesPerSec = wformat->Format.nChannels * wformat->Format.nAvgBytesPerSec = samplerate * block_align;
bytepersample * wformat->Format.nBlockAlign = block_align;
wformat->Format.nSamplesPerSec;
wformat->Format.nBlockAlign = wformat->Format.nChannels * bytepersample;
wformat->Format.wBitsPerSample = bytepersample * 8; wformat->Format.wBitsPerSample = bytepersample * 8;
wformat->Format.cbSize = wformat->Format.cbSize =
22; /* must be at least 22 for WAVE_FORMAT_EXTENSIBLE */ 22; /* must be at least 22 for WAVE_FORMAT_EXTENSIBLE */