WMAV2 MFT-кодировщик

Я пытаюсь использовать кодировщик WMA8 в MFT для кодирования аудиоданных. Полная продолжительность аудио составляет 10 секунд, и ProcessInput и ProcessOut работают правильно / успешно. Отметки времени закодированных аудиоданных также правильные. Проблема в том, что закодированный звук после записи в файл (с моим собственным мультиплексором) кажется некорректным.

Я заметил одну вещь: из вывода mftrace тип вывода имеет странное выравнивание и количество байтов в секунду. Ниже приведен код настройки энкодера и вывод mftrace.

CLSID* pCLSIDs = NULL;   // Pointer to an array of CLISDs.
UINT32 nCount = 0;
MFT_REGISTER_TYPE_INFO encoderInfo;
encoderInfo.guidMajorType = MFMediaType_Audio;
encoderInfo.guidSubtype = MFAudioFormat_WMAudioV8;
HRESULT hr = fpMFTEnum(MFT_CATEGORY_AUDIO_ENCODER, 0, NULL, &encoderInfo, NULL, &pCLSIDs, &nCount);
if (nCount == 0) {
LFTRACE("Can't enumerate Audio encoders, returned encoder amount = 0");
}
ciEncoder.CreateObject(pCLSIDs[0], IID_IMFTransform);
if (ciEncoder.IsInvalid()) {
LFDEBUG("ciEncoder.CreateObject failed");
break;
}
// encoder created now
// to set input
LComObject<IMFMediaType> ciInputType;  // Input media type of the encoder
hr = fpMFCreateMediaType((IMFMediaType**)(ciInputType.GetAssignablePtrRef()));
hr = ciInputType->SetGUID(MF_MT_MAJOR_TYPE, MFMediaType_Audio);
hr = ciInputType->SetGUID(MF_MT_SUBTYPE, MFAudioFormat_PCM);
hr = ciInputType->SetUINT32(MF_MT_AUDIO_BITS_PER_SAMPLE, 16); // bits per sample
hr = ciInputType->SetUINT32(MF_MT_AUDIO_SAMPLES_PER_SECOND, 22050); // input sample rate
hr = ciInputType->SetUINT32(MF_MT_AUDIO_NUM_CHANNELS, 2); // channels
//alignment = uint16_t(pwfx->nChannels * uint16_t((BitsPerSample <= 8) ? 1 : ((BitsPerSample <= 16) ? 2 : 4)));
hr = ciInputType->SetUINT32(MF_MT_AUDIO_BLOCK_ALIGNMENT, 4);
hr = ciInputType->SetUINT32(MF_MT_AUDIO_AVG_BYTES_PER_SECOND, 22050 * 4); // sample rate * alignment
hr = ciEncoder->SetInputType(0, ciInputType.get(), 0);
LComInterface<IMFMediaType> ciOutPutType;
hr = ciEncoder->GetOutputAvailableType(0, 1, (IMFMediaType**)ciOutPutType.GetAssignablePtrRef());
hr = ciEncoder->SetOutputType(0, ciOutPutType.get(), 0);
hr = ciEncoder->ProcessMessage(MFT_MESSAGE_NOTIFY_BEGIN_STREAMING, NULL);4276,B78 04:27:33.76791 CMFTransformDetours::SetInputType @09A36E70 Succeeded MT: MF_MT_AUDIO_AVG_BYTES_PER_SECOND=88200;MF_MT_AUDIO_BLOCK_ALIGNMENT=4;MF_MT_AUDIO_NUM_CHANNELS=2;MF_MT_MAJOR_TYPE=MEDIATYPE_Audio;MF_MT_AUDIO_SAMPLES_PER_SECOND=22050;MF_MT_AUDIO_BITS_PER_SAMPLE=16;MF_MT_SUBTYPE=MFAudioFormat_PCM
4276,B78 04:27:33.76795 CMFTransformDetours::SetOutputType @09A36E70 Succeeded MT: MF_MT_AUDIO_AVG_BYTES_PER_SECOND=2751;MF_MT_AUDIO_BLOCK_ALIGNMENT=1022;MF_MT_AUDIO_NUM_CHANNELS=2;MF_MT_MAJOR_TYPE=MEDIATYPE_Audio;MF_MT_AUDIO_SAMPLES_PER_SECOND=22050;MF_MT_AUDIO_PREFER_WAVEFORMATEX=1;MF_MT_USER_DATA=00 44 00 00 0f 00 00 00 00 00 ;MF_MT_FIXED_SIZE_SAMPLES=1;MF_MT_ALL_SAMPLES_INDEPENDENT=1;MF_MT_AUDIO_BITS_PER_SAMPLE=16;MF_MT_SUBTYPE=MFAudioFormat_WMAudioV8
4276,B78 04:27:33.76796 CMFTransformDetours::ProcessMessage @09A36E70 Message type=0x10000000 MFT_MESSAGE_NOTIFY_BEGIN_STREAMING, param=00000000

из трассы вы можете установить тип вывода звука имеет выравнивание блока 1022, а число байтов в секунду = 2751. Частота дискретизации на выходе равна 22050, означает ли это, что каждый сэмпл имеет только 0,1 байта?

по трассе, кодированные аудиосэмплы имеют правильную метку времени. Кто-нибудь может дать подсказку, где проблема? (кстати, мне нужно кормить кодировщик фиксированным количеством выборок каждый раз, когда я могу ProcessIput ()?)

4276,B78 04:27:33.80126 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 0ms, Duration 232ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.80130 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 232ms, Duration 232ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.80134 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 464ms, Duration 278ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.81006 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 743ms, Duration 278ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.81010 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 1021ms, Duration 278ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.81012 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 1300ms, Duration 278ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.82536 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 1578ms, Duration 325ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.82540 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 1904ms, Duration 278ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.82541 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 2182ms, Duration 278ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.83379 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 2461ms, Duration 325ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.83383 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 2786ms, Duration 336ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.84831 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 3123ms, Duration 313ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.84835 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 3436ms, Duration 371ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.85838 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 3808ms, Duration 371ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.85842 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 4179ms, Duration 371ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.87418 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 4551ms, Duration 371ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.87425 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 4922ms, Duration 325ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.88375 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 5247ms, Duration 371ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.88379 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 5619ms, Duration 371ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.89730 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 5990ms, Duration 417ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.89734 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 6408ms, Duration 371ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.90466 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 6780ms, Duration 417ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.90470 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 7198ms, Duration 371ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.91802 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 7569ms, Duration 325ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.91806 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 7894ms, Duration 371ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.93442 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 8266ms, Duration 464ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.93447 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 8730ms, Duration 417ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.93449 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 9148ms, Duration 417ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.93451 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 9566ms, Duration 278ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1
4276,B78 04:27:33.93453 CMFTransformDetours::ProcessOutput @09A36E70 Stream ID 0, Sample @085C0568, Time 9845ms, Duration 150ms, Buffers 1, Size 1022B, MFSampleExtension_CleanPoint=1

Спасибо