Skip to main content

 none
H264 decoder does not give output with high quality frames RRS feed

  • Question

  • Hi,

    We are developing an application to stream H264 frames from a camera using Media Topology. The media pipeline is as follows,

                                                     Camera Source --> H264 decoder --> EVRPresenter

    We separately have an extension unit for the camera to control the quality of H264 data. The decoder does not provide any output and the frames are discarded when the stream is started with high detailed scene with high H264 quality set in the extension unit. When we reduce the H264 quality with the extension unit, the size of the frames gets reduced and eventually the decoder provides the output and the rendering starts. Also, the decoder provides the output when the scene is not of much details, even though the H264 quality is set at the maximum. The resolution we are facing this issue is 1920*1080.

    These things state that the decoder is not capable of handling big amount of data. If this is the case, is there any limitation for the data size the decoder can handle (or) any other suggestions?

    Tuesday, November 12, 2019 3:15 PM

All replies

  • Hi,

    Thanks for posting here.

    Could you please provide a reproducible sample? And "The decoder does not provide any output and the frames are discarded when the stream is started with high detailed scene with high H264 quality set in the extension unit." 

    Did you get some errors here? 

    Here is the Format Constraints on document:

    https://docs.microsoft.com/en-us/windows/win32/medfound/h-264-video-decoder#format-constraints

    • [!Note]
      In Windows 7, the maximum supported resolution is 1920 × 1088 pixels for both software and DXVA decoding.

    Best Regards,

    Drake


    MSDN Community Support Please remember to click "Mark as Answer" the responses that resolved your issue, and to click "Unmark as Answer" if not. This can be beneficial to other community members reading this thread. If you have any compliments or complaints to MSDN Support, feel free to contact MSDNFSF@microsoft.com.

    Thursday, November 14, 2019 1:40 AM
    Moderator