ms-media-foundation

问题 I need to convert video frames from RGB32 to IYUV but the Color Converter MFT refuses to process samples. For every frame I call IMFTransform::ProcessInput() and IMFTransform::ProcessOutput() but I receive MF_E_TRANSFORM_NEED_MORE_INPUT . If I try to feed MFT with another sample i get the MF_E_NOTACCEPTING error. Below I paste a code to show my problem. Hopefully you guys will be able to help. First I create Media types: //DSP input MediaType CHECK_HR(hr = MFCreateMediaType(&m_pInputMediaType

问题 I would like to enumerate the camera devices on my computer using Windows Media Foundation, I used the code on Microsoft : http://msdn.microsoft.com/en-us/library/windows/desktop/dd940326(v=vs.85).aspx I reproduced the same code they use here : http://msdn.microsoft.com/en-us/library/windows/desktop/ee663604(v=vs.85).aspx When I used their code I get my webcam device name, however my code doesn't find any camera capture device. I'm enable to find why. Here is the code : #pragma once #include

问题 Currently I'm trying to use Windows Media Foundation SDK (C++) to create WMV file on Windows 10. I was able to create a WMV file, but I have difficulty to add language list object (7C4346A9-EFE0-4BFC-B229-393EDE415C85) into the asf file. I am using WMSinkWriter to create a file, and how I pass input video/audio data is as following article mentions: https://docs.microsoft.com/en-us/windows/desktop/medfound/tutorial--using-the-sink-writer-to-encode-video Here's summary of what I'm doing: Call

问题 I have such an implementation void coAudioPlayerSampleGrabber::test(SoundDataType dataType, unsigned char const * pData, int64_t dataLen) { HeapSetInformation(NULL, HeapEnableTerminationOnCorruption, NULL, 0); IMFSourceReader *pReader = NULL; IMFByteStream * spByteStream = NULL; HRESULT hr = S_OK; // Initialize the COM library. hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED | COINIT_DISABLE_OLE1DDE); // Initialize the Media Foundation platform. if (SUCCEEDED(hr)) { hr = MFStartup(MF

问题 I am trying to capture camera stream with Media Foundation. My code works with the same device on Windows 10 but fails on windows 7. For some reason IMFSourceReader.ReadSample blocks and never returns. The reading is done is synchronous mode. The first call to read sample returns with pdwStreamFlags set to MF_SOURCE_READERF_STREAMTICK and no errors. Subsequent calls blocks and never returns. I am using MF_SOURCE_READER_FIRST_VIDEO_STREAM stream index to capture the images from camera. Any

问题 I need to create a reader from buffer(that is wav bytes ) in order to do it I am using such approach: void co_AudioEncoderMF::load_from_memory(unsigned char const * data, long data_size) { unsigned char * buf = new unsigned char[data_size]; //JUST FOR TEST IN ORDER TO BE SURE THAT I HAVE THIS DATA memcpy(buf, data, data_size); IMFMediaType *input_type = nullptr; IMFSourceReader *source_reader = nullptr; IMFMediaType *ouput_media_type = nullptr; IMFSinkWriter *sink_writer = nullptr; IStream *

问题 I need to create a reader from buffer(that is wav bytes ) in order to do it I am using such approach: void co_AudioEncoderMF::load_from_memory(unsigned char const * data, long data_size) { unsigned char * buf = new unsigned char[data_size]; //JUST FOR TEST IN ORDER TO BE SURE THAT I HAVE THIS DATA memcpy(buf, data, data_size); IMFMediaType *input_type = nullptr; IMFSourceReader *source_reader = nullptr; IMFMediaType *ouput_media_type = nullptr; IMFSinkWriter *sink_writer = nullptr; IStream *

问题 I need to create a reader from buffer(that is wav bytes ) in order to do it I am using such approach: void co_AudioEncoderMF::load_from_memory(unsigned char const * data, long data_size) { unsigned char * buf = new unsigned char[data_size]; //JUST FOR TEST IN ORDER TO BE SURE THAT I HAVE THIS DATA memcpy(buf, data, data_size); IMFMediaType *input_type = nullptr; IMFSourceReader *source_reader = nullptr; IMFMediaType *ouput_media_type = nullptr; IMFSinkWriter *sink_writer = nullptr; IStream *

问题 The bounty expires in 6 days . Answers to this question are eligible for a +50 reputation bounty. Aleksey Timoshchenko is looking for an answer from a reputable source . General idea is to get a IMFSinkWriter that will write a data to the buffer. There is such an implementation bool co_AudioEncoderMF::start_encoding_to() { bool result = false; co_Stream stream; IMFByteStream * byte_stream = nullptr; IMFMediaSink * media_sink = nullptr; IMFSinkWriter * sink_writer = nullptr; HRESULT hr =

问题 The bounty expires in 6 days . Answers to this question are eligible for a +50 reputation bounty. Aleksey Timoshchenko is looking for an answer from a reputable source . General idea is to get a IMFSinkWriter that will write a data to the buffer. There is such an implementation bool co_AudioEncoderMF::start_encoding_to() { bool result = false; co_Stream stream; IMFByteStream * byte_stream = nullptr; IMFMediaSink * media_sink = nullptr; IMFSinkWriter * sink_writer = nullptr; HRESULT hr =