Hi all,
I am having some issues getting the qtivtransform gstreamer plugin running in my application.
When using a pipeline like
gst-launch-1.0 qtiqmmfsrc ! video/x-raw,format=NV12,framerate=\(fraction\)30/1,width=1280,height=720 ! qtivtransform ! video/x-raw,format=RGB ! qtivtransform ! video/x-raw,format=NV12 ! omxh264enc ! rtphpay ! udpsink
I get the desired output via udp.
However, when using the videotestsrc instead as follows:
gst-launch-1.0 videotestsrc ! video/x-raw,format=RGB,framerate=\(fraction\)30/1,width=1280,height=720 ! qtivtransform ! video/x-raw,format=NV12 ! omxh264enc ! rtph264pay ! udpsink
the resulting image is green and when using GST_DEBUG=3, the following error is shown:
0:00:00.776743157 18822 0x55ca8d0ad0 ERROR videometa gstvideometa.c:235:default_map: cannot map memory range 0-1
0:00:00.776774563 18822 0x55ca8d0ad0 ERROR default video-frame.c:161:gst_video_frame_map_id: failed to map video frame plane 0
0:00:00.776790292 18822 0x55ca8d0ad0 ERROR qtivtransform videotransform.c:1447:gst_video_transform_transform:<videotransform0> Failed to map input buffer!
Any idea how I can fix that?
Background: We want to use an appsrc as raw image input and use qtivtransform instead of videoconvert to save CPU.
Best regards
Ralf Seidler
Hi,
simply replace RGB by NV12 in your second example and pipeline works (tested).
wrong:
gst-launch-1.0 videotestsrc ! video/x-raw,format=RGB,framerate=\(fraction\)30/1,width=1280,height=720 ! qtivtransform ! video/x-raw,format=NV12 ! omxh264enc ! rtph264pay ! udpsink
correct:
gst-launch-1.0 videotestsrc ! video/x-raw,format=NV12,framerate=\(fraction\)30/1,width=1280,height=720 ! qtivtransform ! video/x-raw,format=NV12 ! omxh264enc ! rtph264pay ! udpsink