v4l2wrapper's Introduction
v4l2wrapper ================= * Libraries you need libjpeg OpenCV-dev Gstreamer 1.0 * How to build mkdir build cd build cmake ../ make Now you can find executable binaries under build/test/. * Usage of vga_raw / fHD_jpeg Just execute * Usage of fHD_h264_stdout fHD_h264_stdout outputs H264 ES (Elementary stream) as standard output. ./test/fHD_h264_stdout | gst-launch -v -e filesrc location=/dev/fd/0 ! h264parse ! avdec_h264 ! videoconvert ! videoscale ! ximagesink sync=false ** TCP sender *** General webcam. gst-launch-1.0 v4l2src ! video/x-raw-yuv,width=1920,height=1080,framerate=30/1 ! x264enc ! h264parse ! mpegtsmux ! tcpserversink host=127.0.0.1 port=5000 *** Logitech C920 (For HW Encoding of H.264) ./test/fHD_h264_stdout | gst-launch -v -e filesrc location=/dev/fd/0 ! h264parse ! mpegtsmux ! tcpserversink host=127.0.0.1 port=5000 ** UDP sender *** General webcam. gst-launch-1.0 -v -e filesrc location=camera.h264 ! h264parse ! mpegtsmux ! rtpmp2tpay ! udpsink host=127.0.0.1 port=4000 gst-launch -v -e filesrc location=camera.h264 ! h264parse ! mpegtsmux ! rtpmp2tpay ! udpsink host=127.0.0.1 port=4000 *** Logitech C920 (For HW Encoding of H.264) ./test/fHD_h264_stdout | gst-launch-1.0 -v -e filesrc location=/dev/fd/0 ! h264parse ! mpegtsmux ! rtpmp2tpay ! udpsink host=127.0.0.1 port=4000 ./test/fHD_h264_stdout | gst-launch -v -e filesrc location=/dev/fd/0 ! h264parse ! mpegtsmux ! rtpmp2tpay ! udpsink host=127.0.0.1 port=4000 ** TCP receiver gst-launch-1.0 -v tcpclientsrc port=4000 caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264' ! tsdemux ! h264parse ! avdec_h264 ! videoconvert ! videoscale ! ximagesink sync=false ** UDP receiver gst-launch-1.0 -v udpsrc port=4000 caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264' ! rtpmp2tdepay ! tsdemux ! h264parse ! avdec_h264 ! videoconvert ! videoscale ! ximagesink sync=false gst-launch -v udpsrc port=4000 caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264' ! rtpmp2tdepay ! mpegtsdemux ! queue ! ffdec_h264 ! ffmpegcolorspace ! deinterlace ! xvimagesink sync=false
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