Hi all,
<p>I am using a C920 Logitech webcam together with linux to stream. I want to decode this stream to get a raw stream with avdec_h264, but it is not working.</p>
<p>I have the now following simplified pipeline:</p>
<p><b>gst-launch-1.0 -vvv -e v4l2src device=/dev/video ! queue ! video/x-h264,width=1920,height=1080,framerate=30/1 ! h264parse ! avdec_h264 ! fakesink</b></p>
<p>When I execute this pipeline, the following error occurs:</p>
<p><b>/GstPipeline:pipeline0/avdec_h264:avdec_h264-0.GstPad:sink: caps = video/x-h264, width=(int)1920, height=(int)1080, framerate=(fraction)30/1, alignment=(string)au, stream-format=(string)byte-stream, pixel-aspect-ratio=(fraction)1/1, colorimetry=(string)2:4:7:1, interlace-mode=(string)progressive, chroma-format=(string)4:2:0, bit-depth-luma=(uint)8, bit-depth-chroma=(uint)8, parsed=(boolean)true, profile=(string)constrained-baseline, level=(string)4 </br>
/usr/bin/recordvideo.sh: line 6: 21423 Illegal instruction gst-launch-1.0 -vvv -e v4l2src device=$1 ! queue ! video/x-h264,width=1920,height=1080,framerate=30/1 ! h264parse ! avdec_h264 ! fakesink</b></p>
<p>Especially this error illegal instruction makes me confused as I do not find anything about it...</p>
<p>Has anyone an idea why this stream is not decodable with avdec_264?</br>
I have the original commands from here http://oz9aec.net/software/gstreamer/using-the-logitech-c920-webcam-with-gstreamer-12</p>
<p>Thank you already for your help!</p>
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