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video src/sink 355

  • I am using gstreamer and wanted to know what the source and sink for the VGA camera and composite out can be in my gstreamer pipeline.

    can i use #define VIDEO_SRC "v4l2src" for the source

    and

    #define VIDEO_SINK "TIDmaiVideoSink"

    Thanks

  • Hi,

    Yes, you can use v4l2src element to capture the video from the camera and the TIDmaiVideoSink element to show the video on the screen. If you are using RR SDK you can use this pipeline to do live preview:

    fbset -disable; gst-launch -e v4l2src always-copy=false ! dmaiaccel ! TIDmaiVideoSink sync=false displayStd=v4l2 displayDevice=/dev/video2

    Cristina Murillo

    Embedded Software Engineer, RidgeRun

  • Thanks Cristina, that is very helpful.

  • I compiled the fakesrc example in the GStreamer App Dev manual, pg.73.#

    I dont get the black/white output with

     g_object_set (G_OBJECT (flt), "caps",

      gst_caps_new_simple ("video/x-raw-rgb",

        "width", G_TYPE_INT, 384,

        "height", G_TYPE_INT, 288,

        "framerate", GST_TYPE_FRACTION, 1, 1,

        "bpp", G_TYPE_INT, 16,

        "depth", G_TYPE_INT, 16,

        "endianness", G_TYPE_INT, G_BYTE_ORDER,

        NULL), NULL);

    any other bitdepth i have used so far does not help. Any help on the correct bitdepth for the TIDmaiVideoSink?

    Thanks.