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--- tips:gstreamer [2019/07/11 07:50] – scipio
+++ tips:gstreamer [2023/11/16 11:42] (current) – [gstream jetson] sscipioni
@@ Line 1: / Line 1: @@
+====== gstream jetson ======
+orin native
+<code bash>
+URL=rtsp://192.168.1.1:7447/IFnqNlmdfTQxDOWV
+#URL=rtsp://192.168.2.35:7447/60e1a6425a20203019f719aa_1
+gst-launch-1.0 rtspsrc location=$URL protocols=tcp latency=0 ! rtph264depay ! queue ! h264parse ! nvv4l2decoder ! nvvideoconvert ! autovideosink
+</code>
+deepstream amd64
+<code bash>
+URL=rtsp://192.168.2.35:7447/60e1a6425a20203019f719aa_1
+</code>
+nvv4l2h264enc
+<code>
+gst-launch-1.0 videotestsrc is-live=1 ! nvvidconv ! nvv4l2h264enc ! h264parse ! matroskamux ! filesink location=/tmp/out.mkv
+</code>
 ====== gstreamer ======
@@ Line 14: / Line 37: @@
 show usb camera
 <code>
-gst-launch-1.0 v4l2src ! xvimagesink
+gst-launch-1.0 v4l2src device=/dev/video0 ! xvimagesink
 </code>
@@ Line 23: / Line 46: @@
   ! h264parse ! avdec_h264 \
   ! videoconvert ! xvimagesink
+</code>
+rtsp save stream to test.mkv without h264 decoding
+<code>
+gst-launch-1.0 -e rtspsrc location=rtsp://flex/s0 protocols=tcp \
+ ! rtph264depay ! h264parse ! matroskamux ! filesink location=test.mkv
 </code>
@@ Line 34: / Line 63: @@
 <code>
 ...  ! videoconvert ! omxh264enc ! matroskamux ! filesink location=test.mkv
+</code>
+inspect pipeline properties
+<code>
+... ! fakesink -v | grep fake
+</code>
+===== ocam camera =====
+[[https://github.com/withrobot/oCam/tree/master/Products/oCam-1CGN-U|oCam-1CGN-U]]
+identify
+<code>
+v4l2-ctl --list-devices
+v4l2-ctl --list-formats-ext -d /dev/video0
+ioctl: VIDIOC_ENUM_FMT
+	Type: Video Capture
+	[0]: 'GRBG' (8-bit Bayer GRGR/BGBG)
+		Size: Discrete 1280x960
+			Interval: Discrete 0.033s (30.000 fps)
+			Interval: Discrete 0.040s (25.000 fps)
+			Interval: Discrete 0.067s (15.000 fps)
+		Size: Discrete 1280x720
+			Interval: Discrete 0.033s (30.000 fps)
+			Interval: Discrete 0.040s (25.000 fps)
+			Interval: Discrete 0.067s (15.000 fps)
+		Size: Discrete 640x480
+			Interval: Discrete 0.010s (100.000 fps)
+			Interval: Discrete 0.011s (90.000 fps)
+			Interval: Discrete 0.017s (60.000 fps)
+			Interval: Discrete 0.020s (50.000 fps)
+			Interval: Discrete 0.033s (30.000 fps)
+			Interval: Discrete 0.040s (25.000 fps)
+			Interval: Discrete 0.067s (15.000 fps)
+		Size: Discrete 320x240
+			Interval: Discrete 0.006s (180.000 fps)
+			Interval: Discrete 0.007s (150.000 fps)
+			Interval: Discrete 0.008s (120.000 fps)
+			Interval: Discrete 0.010s (100.000 fps)
+			Interval: Discrete 0.017s (60.000 fps)
+			Interval: Discrete 0.020s (50.000 fps)
+</code>
+<code>
+v4l2-ctl -d /dev/video0 --list-ctrls
+    white_balance_red_component 0x0098090e (int)    : min=0 max=250 step=1 default=100 value=100
+   white_balance_blue_component 0x0098090f (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)   : min=0 max=3 default=1 value=1
+              exposure_absolute 0x009a0902 (int)    : min=1 max=1000 step=1 default=55 value=128
+</code>
+<code>
+ffplay -f video4linux2 -s 640x480 -i /dev/video0
+Stream #0:0: Video: rawvideo ([186]GR[8] / 0x85247BA), bayer_grbg8, 640x480, 245760 kb/s, 100 fps, 100 tbr, 1000k tbn, 1000k tbc
+</code>
+<code>
+gst-launch-1.0 -v v4l2src device=/dev/video0 ! 'video/x-bayer,format=grbg,width=640,height=480,framerate=100/1,colorimetry=bt601' ! bayer2rgb ! videoconvert ! xvimagesink
+# width=640,height=480,framerate=100/1
+# width=1280,height=960,framerate=30/1
+</code>
+save to file with h264 encode
+<code>
+gst-launch-1.0 -e v4l2src device=/dev/video0 ! 'video/x-bayer,format=grbg,width=1280,height=960,framerate=30/1,colorimetry=bt601' ! bayer2rgb ! videoconvert ! x264enc ! matroskamux ! filesink location=test.mkv
 </code>