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tips:gstreamer [2019/07/10 15:45] – created scipio | tips:gstreamer [2023/11/16 11:42] (current) – [gstream jetson] sscipioni | ||
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+ | ====== gstream jetson ====== | ||
+ | |||
+ | |||
+ | |||
+ | orin native | ||
+ | <code bash> | ||
+ | URL=rtsp:// | ||
+ | # | ||
+ | gst-launch-1.0 rtspsrc location=$URL protocols=tcp latency=0 ! rtph264depay ! queue ! h264parse ! nvv4l2decoder ! nvvideoconvert ! autovideosink | ||
+ | </ | ||
+ | |||
+ | deepstream amd64 | ||
+ | <code bash> | ||
+ | URL=rtsp:// | ||
+ | |||
+ | </ | ||
+ | |||
+ | nvv4l2h264enc | ||
+ | < | ||
+ | gst-launch-1.0 videotestsrc is-live=1 ! nvvidconv ! nvv4l2h264enc ! h264parse ! matroskamux ! filesink location=/ | ||
+ | </ | ||
+ | |||
+ | |||
====== gstreamer ====== | ====== gstreamer ====== | ||
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cd tmp | cd tmp | ||
dot -Tpng x.xx.xx.xxxxxxxxx-gst-launch.FOO.dot > graph.png | dot -Tpng x.xx.xx.xxxxxxxxx-gst-launch.FOO.dot > graph.png | ||
+ | </ | ||
+ | |||
+ | show usb camera | ||
+ | < | ||
+ | gst-launch-1.0 v4l2src device=/ | ||
+ | </ | ||
+ | |||
+ | rtsp client | ||
+ | < | ||
+ | gst-launch-1.0 \ | ||
+ | rtspsrc location=rtsp:// | ||
+ | ! h264parse ! avdec_h264 \ | ||
+ | ! videoconvert ! xvimagesink | ||
+ | </ | ||
+ | |||
+ | rtsp save stream to test.mkv without h264 decoding | ||
+ | < | ||
+ | gst-launch-1.0 -e rtspsrc location=rtsp:// | ||
+ | ! rtph264depay ! h264parse ! matroskamux ! filesink location=test.mkv | ||
</ | </ | ||
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hardware encode | hardware encode | ||
< | < | ||
- | ... | + | ... ! videoconvert ! omxh264enc ! matroskamux ! filesink location=test.mkv |
</ | </ | ||
+ | inspect pipeline properties | ||
+ | < | ||
+ | ... ! fakesink -v | grep fake | ||
+ | </ | ||
+ | |||
+ | ===== ocam camera ===== | ||
+ | |||
+ | [[https:// | ||
+ | |||
+ | identify | ||
+ | < | ||
+ | v4l2-ctl --list-devices | ||
+ | |||
+ | v4l2-ctl --list-formats-ext -d / | ||
+ | ioctl: VIDIOC_ENUM_FMT | ||
+ | Type: Video Capture | ||
+ | |||
+ | [0]: ' | ||
+ | Size: Discrete 1280x960 | ||
+ | Interval: | ||
+ | Interval: | ||
+ | Interval: | ||
+ | Size: Discrete 1280x720 | ||
+ | Interval: | ||
+ | Interval: | ||
+ | Interval: | ||
+ | Size: Discrete 640x480 | ||
+ | Interval: | ||
+ | Interval: | ||
+ | Interval: | ||
+ | Interval: | ||
+ | Interval: | ||
+ | Interval: | ||
+ | Interval: | ||
+ | Size: Discrete 320x240 | ||
+ | Interval: | ||
+ | Interval: | ||
+ | Interval: | ||
+ | Interval: | ||
+ | Interval: | ||
+ | Interval: | ||
</ | </ | ||
+ | |||
+ | < | ||
+ | v4l2-ctl -d /dev/video0 --list-ctrls | ||
+ | white_balance_red_component 0x0098090e (int) : min=0 max=250 step=1 default=100 value=100 | ||
+ | | ||
+ | gain 0x00980913 (int) : min=0 max=255 step=1 default=64 value=64 | ||
+ | exposure_auto 0x009a0901 (menu) | ||
+ | exposure_absolute 0x009a0902 (int) : min=1 max=1000 step=1 default=55 value=128 | ||
+ | </ | ||
+ | |||
+ | |||
+ | < | ||
+ | ffplay -f video4linux2 -s 640x480 -i /dev/video0 | ||
+ | |||
+ | Stream #0:0: Video: rawvideo ([186]GR[8] / 0x85247BA), bayer_grbg8, | ||
+ | </ | ||
+ | |||
+ | < | ||
+ | gst-launch-1.0 -v v4l2src device=/ | ||
+ | |||
+ | # width=640, | ||
+ | # width=1280, | ||
+ | |||
+ | </ | ||
+ | |||
+ | save to file with h264 encode | ||
+ | < | ||
+ | gst-launch-1.0 -e v4l2src device=/ | ||
+ | </ | ||
+ | |||
+ | |||