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  1. Qt
  2. QTBUG-126359

QVideoFrame(QVideoFrameFormat) constructor fails with ffmpeg on linux

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    • Icon: Bug Bug
    • Resolution: Invalid
    • Icon: P2: Important P2: Important
    • None
    • 6.4.0 FF
    • Multimedia
    • None
    • tested on debian 11 and 12 with gnome and lxde
    • Linux/X11
    • Multimedia wk 29-30, Multimedia wk 31-32

      Using the constructor QVideoFrame::QVideoFrame(const QVideoFrameFormat &format) creates a wrong frame. This happens only with the ffmpeg backend. It does not happen with the gstreamer backend. It seems, that the constructor creates a gstreamer frame, even the ffmpeg backend is used.

      Output of attached test case:

      FFMEG:

      Format: Format_YUV420P
      Copy constructor   : mappedBytes: 69120
      Format constructor : mappedBytes: 57600

      GSTREAMER:

      Format: Format_YUV420P
      Copy constructor   : mappedBytes: 57600
      Format constructor : mappedBytes: 57600

        1. QTBUG-126359_qvideoframe.zip
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            timblechmann tim blechmann
            felsi Michael Felsberger
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              Created:
              Updated:
              Resolved:

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