Gstreamer One Liners: Unterschied zwischen den Versionen
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\ # Play video \ | \ # Play video \ | ||
xvimagesink | xvimagesink | ||
| + | </pre> | ||
| + | |||
| + | == Greenbox == | ||
| + | |||
| + | === Realtime alpha blending with colorkey === | ||
| + | |||
| + | <pre> | ||
| + | gst-launch-0.10 -v \ | ||
| + | \ # V4l2: Open \ | ||
| + | v4l2src device=/dev/video0 ! 'video/x-raw-yuv, format=(fourcc)YUY2, width=(int)640, height=(int)480, framerate=(fraction)15/2' ! \ | ||
| + | \ # v4l2: Apply alpha \ | ||
| + | ffmpegcolorspace ! alpha method=custom target-r=0 target-g=255 target-b=0 angle=40 ! \ | ||
| + | \ # v4l2: mix \ | ||
| + | videomixer name=mix ! \ | ||
| + | \ # Mixer: display \ | ||
| + | ffmpegcolorspace ! xvimagesink \ | ||
| + | \ # Background: open \ | ||
| + | filesrc location=bg.avi ! decodebin ! \ | ||
| + | \ # Background: mix \ | ||
| + | ffmpegcolorspace ! mix. | ||
</pre> | </pre> | ||
[[Kategorie:CLI]] | [[Kategorie:CLI]] | ||
Version vom 9. Mai 2010, 14:32 Uhr
kind of.
Stereo video casting
Capture & send synchronized video streams
gst-launch-0.10 -v gstrtpbin name=rtpbin \ \ # Capture video0 \ v4l2src device=/dev/video0 ! \ 'image/jpeg, width=(int)640, height=(int)480, framerate=(fraction)30/1' ! \ \ # Session 0: Create \ rtpjpegpay ! rtpbin.send_rtp_sink_0 \ rtpbin.send_rtp_src_0 ! multiudpsink clients="127.0.0.1:9996" \ \ # Session 0: Send RTCP packets \ rtpbin.send_rtcp_src_0 ! multiudpsink clients="127.0.0.1:9997" sync=false async=false \ \ # Session 0: Receive RTCP packets \ udpsrc port=10000 ! rtpbin.recv_rtcp_sink_0 \ \ # Capture video1 \ v4l2src device=/dev/video1 ! \ 'image/jpeg, width=(int)640, height=(int)480, framerate=(fraction)30/1' ! \ \ # Session 1: Create \ rtpjpegpay ! rtpbin.send_rtp_sink_1 \ rtpbin.send_rtp_src_1 ! multiudpsink clients="127.0.0.1:9998" \ \ # Session 1: Receive RTCP packets \ rtpbin.send_rtcp_src_1 ! multiudpsink clients="127.0.0.1:9999" sync=false async=false \ \ # Session 1: Send RTCP packets \ udpsrc port=10001 ! rtpbin.recv_rtcp_sink_1
Receive & dump synchronized video streams
gst-launch-0.10 -v gstrtpbin name=rtpbin \ \ # Session 0: join \ udpsrc caps="application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)JPEG, ssrc=(guint)469657143, payload=(int)96, clock-base=(guint)2841649723, seqnum-base=(guint)39869" port=9996 ! \ rtpbin.recv_rtp_sink_0 \ rtpbin. ! rtpjpegdepay ! \ \ # Session 0: Dump video \ filesink location=session0.mjpeg \ \ # Session 0: Receive RTCP packets \ udpsrc port=9997 ! rtpbin.recv_rtcp_sink_0 \ \ # Session 0: Send RTCP packets \ rtpbin.send_rtcp_src_0 ! multiudpsink clients="127.0.0.1:10000" sync=false async=false \ \ # Session 1: join \ udpsrc caps="application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)JPEG, ssrc=(guint)469657143, payload=(int)96, clock-base=(guint)2841649723, seqnum-base=(guint)39869" port=9998 ! \ rtpbin.recv_rtp_sink_1 \ rtpbin. ! rtpjpegdepay ! \ \ # Session 1: Dump video \ filesink location=session1.mjpeg \ \ # Session 1: Receive RTCP packets \ udpsrc port=9999 ! rtpbin.recv_rtcp_sink_1 \ \ # Session 1: Send RTCP packets \ rtpbin.send_rtcp_src_1 ! multiudpsink clients="127.0.0.1:10001" sync=false async=false
Receive & play synchronized video streams
gst-launch-0.10 -v gstrtpbin name=rtpbin \ \ # Session 0: Join \ udpsrc caps="application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)JPEG, ssrc=(guint)469657143, payload=(int)96, clock-base=(guint)2841649723, seqnum-base=(guint)39869" port=9996 ! \ rtpbin.recv_rtp_sink_0 \ rtpbin. ! rtpjpegdepay ! \ \ # Session 1: Decode video & adjust framerate \ jpegdec ! videorate ! video/x-raw-yuv,framerate=15/1 ! \ \ # Session 0: Play video \ xvimagesink \ \ # Session 0: Receive RTCP packets \ udpsrc port=9997 ! rtpbin.recv_rtcp_sink_0 \ \ # Session 0: Send RTCP packets \ rtpbin.send_rtcp_src_0 ! multiudpsink clients="127.0.0.1:10000" sync=false async=false \ gst-launch-0.10 -v gstrtpbin name=rtpbin \ \ # Session 1: Join \ udpsrc caps="application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)JPEG, ssrc=(guint)469657143, payload=(int)96, clock-base=(guint)2841649723, seqnum-base=(guint)39869" port=9998 ! \ rtpbin.recv_rtp_sink_1 \ rtpbin. ! rtpjpegdepay ! \ \ # Session 1: Decode video & adjust framerate \ jpegdec ! videorate ! video/x-raw-yuv,framerate=15/1 ! \ \ # Session 1: Play video \ xvimagesink \ \ # Session 1: Receive RTCP packets \ udpsrc port=9999 ! rtpbin.recv_rtcp_sink_1 \ \ # Session 1: Send RTCP packets \ rtpbin.send_rtcp_src_1 ! multiudpsink clients="127.0.0.1:10001" sync=false async=false
Play dumped videos
gst-launch-0.10 -v \ \ # Open session0.mjpeg \ filesrc location=session0.mjpeg ! \ \ # Decode video & adjust framerate \ jpegdec ! videorate ! video/x-raw-yuv,framerate=15/1 ! \ \ # Play video \ xvimagesink \ \ # Open session1.mjpeg \ filesrc location=session1.mjpeg ! \ \ # Decode video & adjust framerate \ jpegdec ! videorate ! video/x-raw-yuv,framerate=15/1 ! \ \ # Play video \ xvimagesink
Greenbox
Realtime alpha blending with colorkey
gst-launch-0.10 -v \ \ # V4l2: Open \ v4l2src device=/dev/video0 ! 'video/x-raw-yuv, format=(fourcc)YUY2, width=(int)640, height=(int)480, framerate=(fraction)15/2' ! \ \ # v4l2: Apply alpha \ ffmpegcolorspace ! alpha method=custom target-r=0 target-g=255 target-b=0 angle=40 ! \ \ # v4l2: mix \ videomixer name=mix ! \ \ # Mixer: display \ ffmpegcolorspace ! xvimagesink \ \ # Background: open \ filesrc location=bg.avi ! decodebin ! \ \ # Background: mix \ ffmpegcolorspace ! mix.
