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C779-Software

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8. The chip supports two formats Test video recording v4l2-ctl --verbose -d /dev/video0 --set-fmt- video=width=1280,height=720,pixelformat='RGB3(the default) and UYVY' --stream-mmap=4 --stream-skip=3 --stream-count=2 --stream-to=csitest. RGB3 is 24bpp, yuv --stream-pollThe above command will capture frames and UYVY is YUV4save to /home/pi (filename:2:2 16bppcsitest.yuv)
Over the normal 2 CSI-2 lanes the data rate is such that RGB3 can run at a maximum of 1080p30, whilst UYVY will go up to 1080p50. Use the following command to select UYVY, however your application may override that. v4l2-ctl -v pixelformat=UYVY 9. Check that To play the audio drivers / card is available to ALSA.<pre>pi@raspberrypi:~ $ arecord -l**** List of CAPTURE Hardware Devices ****card 1: tc358743 [tc358743], device 0: bcm2835-i2s-dir-hifi dir-hifi-0 [bcm2835-i2s-dir-hifi dir-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0</pre>Note: <span style="color:red;">card 1</span> means that the card number for the TC358743XBG is "1" and it might be different. 10. Install GStreamer tool; sudo apt install gstreamer1.0-tools Check gstreamer tool version:<pre>pi@raspberrypi:~ $ gst-launch-1.0 --versiongst-launch-1.0 version 1.18.4GStreamer 1.18.4http://packages.qa.debian.org/gstreamer1.0</pre> <span style="color:red;">Note: </span> Different versions have different command line parameters, which is very annoying. 11. Use gstreamer to record video and audio #GStreamer v1.14 command gst-launch-1.0 v4l2src io-mode=5 ! video/x-raw, format=UYVY, framerate=25/1 ! v4l2h264enc output-io-mode=4 ! video/x-h264,profile=high ! h264parse ! queue ! matroskamux name=mux ! filesink location=foo.mkv alsasrc device=hw:1 ! audio/x-raw,rate=48000,channels=2 ! audioconvert ! avenc_aac bitrate=48000 ! aacparse ! queue ! mux. foo.mkv is the output YUV file. If your gstreamer is version 1.8 or above, you can try the following test command. In additionon Raspberry Pi OS desktop, alsasrc device=hw:1 represents the sound card of TC358743, you can use "arecord -l" to query.  #The command to recode a video with audio. (GStreamer 1.18.4) gst-launch-1.0 -vvv v4l2src ! "video/x-raw,<span style="color:red;">framerate=30/1</span>,format=UYVY" ! v4l2h264enc extra-controls="controls,h264_profile=4,h264_level=13,video_bitrate=256000;" ! "video/x-h264,profile=high, level=(string)4.2" ! h264parse ! queue ! matroskamux name=mux ! filesink location=foo.mkv alsasrc device=hw:1 ! audio/x-raw,rate=48000,channels=2 ! audioconvert ! avenc_aac bitrate=48000 ! aacparse ! queue ! mux.  #The sample command to recode a video without audioFFplay. (C779 doesn't support audio) gst-launch-1.0 -vvv v4l2src ! "video/x-raw,'''<span style="color:red;">framerate=30/1</span>''',format=UYVY" ! v4l2h264enc extra-controls="controls,h264_profile=4,h264_level=13,video_bitrate=256000;" ! "video/x-h264,profile=high, level=(string)4.2" ! h264parse ! queue ! matroskamux name=mux ! filesink location=foo.mkv  Press CTRL+C to end recording. If you have the '''WARNING: erroneous pipeline: no element "v4l2src"''' error, please run Run the following command: sudo apt-get install gstreamer1.0-plugins-good If you have the '''WARNING: erroneous pipeline: no element "h264parse"''' erroron local terminal window, please run Not work if executing the following command: sudo apt-get install gstreamer1.0-plugins-bad If you have the '''WARNING: erroneous pipeline: no element "alsasrc"''' error, please run the following command: sudo apt-get install gstreamer1.0-alsa PS: We recommend that you modify the above '''<span style="color:red;">framerate</span>''' parameter to the actual frame rate of your HDMI signal, the actual frame rate value is from the result of ''''v4l2-ctl --query-dv-timings'''' command.[[File:Csi-framerate.png|none]] For the above HDMI device, because the frame rate is 60, so we modify the framerate parameter to 60 like the followint command. Record the video only: gst-launch-1.0 -vvv v4l2src ! "video/x-raw,'''<span style="color:red;">framerate=60/1</span>''',format=UYVY" ! v4l2h264enc extra-controls="controls,h264_profile=4,h264_level=13,video_bitrate=256000;" ! "video/x-h264,profile=high, level=(stringSSH)4.2" ! h264parse ! queue ! matroskamux name=mux ! filesink location=foo.mkv Record the video and audio: (if your shield supports audio also) gst-launch-1.0 -vvv v4l2src ! "video/x-raw,'''<span style="color:red;">framerate=60/1</span>''',format=UYVY" ! v4l2h264enc extra-controls="controls,h264_profile=4,h264_level=13,video_bitrate=256000;" ! "video/x-h264,profile=high, level=(string)4.2" ! h264parse ! queue ! matroskamux name=mux ! filesink location=foo.mkv <span style="color:red;">alsasrc device=hw:1</span> ! audio/xffplay -raw,rate=48000,channels=2 ! audioconvert ! avenc_aac bitrate=48000 ! aacparse ! queue ! mux. Note: <span style="color:red;">alsasrc device=hw:1</span> f rawvideo - "'''1'''" means the audio card number, You must change to correct audio card number.(Query the car number via ''''arecord video_size 1280x720 -'''l', refer to step 9) 12. For old raspberry pi os, you can use [[Raspistil]] to take photopixel_format bgr24 csitest.yuv
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