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| |
| #include "qwindowsaudioutils.h" |
| |
| #ifndef SPEAKER_FRONT_LEFT |
| #define SPEAKER_FRONT_LEFT 0x00000001 |
| #define SPEAKER_FRONT_RIGHT 0x00000002 |
| #define SPEAKER_FRONT_CENTER 0x00000004 |
| #define SPEAKER_LOW_FREQUENCY 0x00000008 |
| #define SPEAKER_BACK_LEFT 0x00000010 |
| #define SPEAKER_BACK_RIGHT 0x00000020 |
| #define SPEAKER_FRONT_LEFT_OF_CENTER 0x00000040 |
| #define SPEAKER_FRONT_RIGHT_OF_CENTER 0x00000080 |
| #define SPEAKER_BACK_CENTER 0x00000100 |
| #define SPEAKER_SIDE_LEFT 0x00000200 |
| #define SPEAKER_SIDE_RIGHT 0x00000400 |
| #define SPEAKER_TOP_CENTER 0x00000800 |
| #define SPEAKER_TOP_FRONT_LEFT 0x00001000 |
| #define SPEAKER_TOP_FRONT_CENTER 0x00002000 |
| #define SPEAKER_TOP_FRONT_RIGHT 0x00004000 |
| #define SPEAKER_TOP_BACK_LEFT 0x00008000 |
| #define SPEAKER_TOP_BACK_CENTER 0x00010000 |
| #define SPEAKER_TOP_BACK_RIGHT 0x00020000 |
| #define SPEAKER_RESERVED 0x7FFC0000 |
| #define SPEAKER_ALL 0x80000000 |
| #endif |
| |
| #ifndef WAVE_FORMAT_EXTENSIBLE |
| #define WAVE_FORMAT_EXTENSIBLE 0xFFFE |
| #endif |
| |
| #ifndef WAVE_FORMAT_IEEE_FLOAT |
| #define WAVE_FORMAT_IEEE_FLOAT 0x0003 |
| #endif |
| |
| static const GUID _KSDATAFORMAT_SUBTYPE_PCM = { |
| 0x00000001, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}}; |
| |
| static const GUID _KSDATAFORMAT_SUBTYPE_IEEE_FLOAT = { |
| 0x00000003, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}}; |
| |
| QT_BEGIN_NAMESPACE |
| |
| bool qt_convertFormat(const QAudioFormat &format, WAVEFORMATEXTENSIBLE *wfx) |
| { |
| if (!wfx |
| || !format.isValid() |
| || format.codec() != QStringLiteral("audio/pcm") |
| || format.sampleRate() <= 0 |
| || format.channelCount() <= 0 |
| || format.sampleSize() <= 0 |
| || format.byteOrder() != QAudioFormat::LittleEndian) { |
| return false; |
| } |
| |
| wfx->Format.nSamplesPerSec = format.sampleRate(); |
| wfx->Format.wBitsPerSample = wfx->Samples.wValidBitsPerSample = format.sampleSize(); |
| wfx->Format.nChannels = format.channelCount(); |
| wfx->Format.nBlockAlign = (wfx->Format.wBitsPerSample / 8) * wfx->Format.nChannels; |
| wfx->Format.nAvgBytesPerSec = wfx->Format.nBlockAlign * wfx->Format.nSamplesPerSec; |
| wfx->Format.cbSize = 0; |
| |
| if (format.sampleType() == QAudioFormat::Float) { |
| wfx->Format.wFormatTag = WAVE_FORMAT_IEEE_FLOAT; |
| wfx->SubFormat = _KSDATAFORMAT_SUBTYPE_IEEE_FLOAT; |
| } else { |
| wfx->Format.wFormatTag = WAVE_FORMAT_PCM; |
| wfx->SubFormat = _KSDATAFORMAT_SUBTYPE_PCM; |
| } |
| |
| if (format.channelCount() > 2) { |
| wfx->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE; |
| wfx->Format.cbSize = 22; |
| wfx->dwChannelMask = 0xFFFFFFFF >> (32 - format.channelCount()); |
| } |
| |
| return true; |
| } |
| |
| QT_END_NAMESPACE |