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View ArticleMediaSession errors, sinks, and transcoding issues
Using Media Foundation, I'm writing an application that captures microphone data and plays it back through the speakers.To do this, the application enumerates audio endpoints, and instantiates an...
View ArticleLocking a file
Is there a way to a lock a file that was created with MFCreateFile(), other than CreateFile() and LockFile() ?
View Articlemultiple media playing
Hi Is playing multiple video streams in a session synchronously using Media Foundation possible? I am working on c++ and QT5.3. Currently i am now able to play 1 video and 2 voice streams...
View Articlewavsink ignores last samples
I tried saving wav file using wavsink sample. Input file is simple wav file, containing 1024 samples (values: 0-1023). I expected wavsink to produce the same file. However, the output file is 46...
View ArticleMedia Foundation dll
I need to write a dll in c++ that will be accessed by a c# application. The dll will be a player class using WMF. I am using Visual Studios 2013. My question is what kind of dll to create. My app is...
View ArticleSharing video capture sources
Hello,is there a way to open a video capture source non-exclusively, so that multiple applications can use it simultaneously? Currently I am getting MF_E_HW_MFT_FAILED_START_STREAMING on...
View Article0xc000007b Windows 8.1 (64 bit)
Hey there,I have installed new Windows 8.1 (64 bit). Whenever I install and play heavy games like Black Ops or FIFA or any other game. It gives me an error - "The Application was unable to start...
View ArticlePlay audio from file to speaker with Media Foundation
I'm attempting to play the audio track from an mp4 file to my speaker. I know Media Foundation is able to decode the audio stream as I can play it with the TopoEdit tool. In the sample code below I'm...
View ArticleH264 Decoder buffering 8 frames even in low latency mode
Hi,I am trying to do hardware video decode in my application. It does H264 decoding using IMFTransform::ProcessInput and IMFTransform::ProcessOutput API. I set CODECAPI_AVLowLatencyMode to avoid any...
View ArticleIMFSourceResolver::CreateObjectFromURL() failing on AAC file
I have an AAC file that was transcoded from a WAV file using the Transcode API.Attempting to create a Media Source from the AAC file using IMFSourceResolver::CreateObjectFromURL() fails with HRESULT of...
View ArticleLossless video encoder
Hello,is there a lossless video encoder available in Media Foundation? The H.264 supposedly supports lossless features but the documentation isn't really helpful in this way, other than it states only...
View ArticleSpeed up Video reading using SourceReader
I had posted this question a couple of weeks earlier but there was no response and so I am reposting. Hi, I am using the SourceReader in my application to decode video. My application does not render...
View ArticleLimitation of the number of videos to playback in Media Foundation
Hi,I need to play 5 videos using Media Foundation. I am working on Win7Entreprise, coding c++ using QT5.3.I have managed to add those videos to topology and the session. I can playback up to 3 videos...
View ArticleMFT using DXVA video processing
Hi, this post includes several questions: 1. I started building a topology with a source input node (my webcam), an MFT (the MFT_Grayscale example) and the EVR. I included this in a small...
View ArticleWMVCore library crashes - WMVCore.WMIsContentProtected crashes
Hi all,I am new here. I am current facing a problem where the client of the system that my team is currently developing crashes every time the user tries to export a video recording. The export feature...
View Articlehow to use resampler MFT in c code
I need to use windows audio resampler DSP (MFT) to upscaling sampling rate on win7 desktop.I could not find any documentation or code sample in c (not c++),Could anyone have any ideas? Tried with...
View ArticleHigh Latency Transitioning from Scrubbing to Playback and Vice Versa
I'm trying to make a media player that always "scrubs" when seeking while the video is paused. In other words if I'm paused and seek to position X in the video, I want frame X to appear. (This is how...
View ArticleCoreAudio API Latency
Use-caseLine-In audio capture using CoreAudio APIAudio capture formatSampling rate 48KhzChannels 2Bits-per sample 16 ( short )Compression formatAacLc @ WAVE_FORMAT_MPEG_ADTS_AAC using libfaac ( open...
View ArticleAny third party mediaelement ?
Hi,is there any third party media element for wpf which support wide range of formats including uncompressed formats.media element - i found some rendering issued with the HD uncompressed...
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