Andrey Filippov committed changes to the Elphel git project :
working on DSP-based 8x8 DCT implementing Chen algorithm

Andrey Filippov committed changes to the Elphel git project :
Merge branch 'master' of https://github.com/Elphel/mechanical-parts

Andrey Filippov committed changes to the Elphel git project :
Update README.md

Mikhail Karpenko committed changes to the Elphel git project :
WIP: single threaded app

← Older revision Revision as of 01:19, 10 June 2016 Line 19: Line 19: ** 48V => 0.42+ A ** 48V => 0.42+ A ** 12V => 1.67+ A ** 12V => 1.67+ A  +  +[[Category:393]] Oleg

GStreamer plugins:

← Older revision Revision as of 01:06, 10 June 2016 (6 intermediate revisions not shown)Line 8: Line 8: = Installing GStreamer = = Installing GStreamer = -[http://blog.nicolargo.com/ NicoLargo] made [http://blog.nicolargo.com/2010/05/installation-de-tout-les-composants-gstreamer-sous-ubuntu.html a script] to automatically install all the required packages for GStreamer on Ubuntu 10.04. Should work for up to (K)Ubuntu 16.04 as well.+* [http://blog.nicolargo.com/ NicoLargo] made [http://blog.nicolargo.com/2010/05/installation-de-tout-les-composants-gstreamer-sous-ubuntu.html a script] to automatically install all the required packages for GStreamer on Ubuntu 10.04. Should work for up to (K)Ubuntu 16.04 as well. Or:  +<font size='2'>  + sudo apt-get install gstreamer1.0-tools gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly  +</font> = Tips = = Tips = Line 16: Line 19: * You won't get 25 fps if autoexposure is on and local brightness not high enough: the camera will automatically lower framerate for keeping clear picture. Either lighten up, or play with image settings (notably, gain). * You won't get 25 fps if autoexposure is on and local brightness not high enough: the camera will automatically lower framerate for keeping clear picture. Either lighten up, or play with image settings (notably, gain).  +== GStreamer plugins ==  +* All of the plugins are listed [https://gstreamer.freedesktop.org/documentation/plugins.html here].  +* Alternative way of learning a plugin's parameters is:  +** version 1.0  +<font size='2'>  + gst-inspect-1.0 <name>  +</font>  +** version 0.10  +<font size='2'>  + gst-inspect-0.1 <name>  +</font> = Command line examples = = Command line examples = Line 131: Line 145: Notes: Notes: * I did some benchmarks; a Core 2 Quad Q6600 (2.4 Ghz) is not powerful enough for h264 encoding @fullHD resolution (using 4 treads). * I did some benchmarks; a Core 2 Quad Q6600 (2.4 Ghz) is not powerful enough for h264 encoding @fullHD resolution (using 4 treads).  +  +==Useful links==  +* [http://wiki.oz9aec.net/index.php/Gstreamer_cheat_sheet GStreamer cheat sheet]  +* [http://processors.wiki.ti.com/index.php/Example_GStreamer_Pipelines Example GStreamer pipelines]  +* [https://coaxion.net/blog/2014/01/gstreamer-dynamic-pipelines/ GStreamer dynamic pipelines]  +* [https://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/section-dynamic-pipelines.html Dynamic pipelines] [[Category:393]] [[Category:393]] [[Category:353]] [[Category:353]] Oleg

Display:

← Older revision Revision as of 00:44, 10 June 2016 (4 intermediate revisions not shown)Line 36: Line 36: ==<font color="blue">Get images</font>== ==<font color="blue">Get images</font>== -channel 1: http://192.168.0.8:2323/noexif/img+channel 1: http://192.168.0.8:2323/img -channel 2: http://192.168.0.8:2324/noexif/img+channel 2: http://192.168.0.8:2324/img -channel 3: http://192.168.0.8:2325/noexif/img+channel 3: http://192.168.0.8:2325/img -channel 4: http://192.168.0.8:2326/noexif/img+channel 4: http://192.168.0.8:2326/img -==<font color="blue">Video recording</font>==+==<font color="blue">Video</font>==  +===Display===  +<font size='2'>  + gst-launch-1.0 souphttpsrc is-live=true location=http://192.168.0.8:2323/mimg ! jpegdec ! xvimagesink  +</font>  +* Only mjpeg, no rtsp yet.  +* More examples at [[Using_gstreamer#Display|Using GStreamer]]  +   +===Record=== * <b><font size='3' color='red'>[[Using_camogm_with_Elphel393_camera|More info]]</font></b> * <b><font size='3' color='red'>[[Using_camogm_with_Elphel393_camera|More info]]</font></b> * If the ''prefix'' parameter, which is ''absolute path + prefix'', for a channel is not set the file will be written somewhere to rootfs (likely '''/usr/local/verilog/''') * If the ''prefix'' parameter, which is ''absolute path + prefix'', for a channel is not set the file will be written somewhere to rootfs (likely '''/usr/local/verilog/''') Oleg

Live encoding:

← Older revision Revision as of 00:35, 10 June 2016 (17 intermediate revisions not shown)Line 8: Line 8: = Installing GStreamer = = Installing GStreamer = -[http://blog.nicolargo.com/ NicoLargo] made [http://blog.nicolargo.com/2010/05/installation-de-tout-les-composants-gstreamer-sous-ubuntu.html a script] to automatically install all the required packages for GStreamer on Ubuntu 10.04. Should work up to for (K)Ubuntu 16.04 as well.+[http://blog.nicolargo.com/ NicoLargo] made [http://blog.nicolargo.com/2010/05/installation-de-tout-les-composants-gstreamer-sous-ubuntu.html a script] to automatically install all the required packages for GStreamer on Ubuntu 10.04. Should work for up to (K)Ubuntu 16.04 as well. = Tips = = Tips = Line 21: Line 21: <b>Note: replace width and height accordingly to your camera setup and your computer's horsepower :P)</b> <b>Note: replace width and height accordingly to your camera setup and your computer's horsepower :P)</b> -== GStreamer 1.0==+== GStreamer 1.0 (10393 & 10353)== ===Display=== ===Display=== -====1. Multipart JPEG (mjpeg), 1 channel====+====Multipart JPEG (mjpeg), 1 channel==== <font size='2'> <font size='2'>   gst-launch-1.0 souphttpsrc is-live=true location=http://192.168.0.8:2323/mimg ! jpegdec ! xvimagesink   gst-launch-1.0 souphttpsrc is-live=true location=http://192.168.0.8:2323/mimg ! jpegdec ! xvimagesink </font> </font> -====2. Multipart JPEGs (mjpeg), 4 channels in 1 window====+Notes:  +* 10393 ports are 2323-2326  +* 10353 port is 8081  +   +====Multipart JPEGs (mjpeg), 4 channels in 1 window==== * Each source is resized to 640x480 * Each source is resized to 640x480 * Text overlay and borders added * Text overlay and borders added Line 69: Line 73: </font> </font> -== GStreamer 0.10==+====Live RTSP stream====  +Notes:  +* careful with streams at higher resolution than 1920x1088  +* 10353 - works  +* <b>10393 - doesn't have a streamer yet</b>  +=====native resolution=====  +<font size='2'>  + gst-launch-1.0 rtspsrc location=rtsp://192.168.0.9:554 ! rtpjpegdepay ! jpegdec ! xvimagesink sync=false  +</font>  +=====resized, 640x480=====  +<font size='2'>  + gst-launch-1.0 rtspsrc location=rtsp://192.168.0.9:554 ! rtpjpegdepay ! jpegdec ! videoscale ! video/x-raw,width=640,height=480 ! xvimagesink sync=false  +</font>  +  +== GStreamer 0.10 (10353)== === Display === === Display === -careful with streams at higher resolution than 1920x1088+Notes:  +* Careful with streams at higher resolution than 1920x1088 -Display the cameras live video stream at its native resolution:+====Live RTSP stream====  +=====native resolution=====  +<font size='2'>   gst-launch-0.10 rtspsrc location=rtsp://192.168.0.9:554 ! rtpjpegdepay ! jpegdec ! queue ! ffmpegcolorspace ! xvimagesink sync=false   gst-launch-0.10 rtspsrc location=rtsp://192.168.0.9:554 ! rtpjpegdepay ! jpegdec ! queue ! ffmpegcolorspace ! xvimagesink sync=false  +</font> -Display the cameras live video stream, resize to fit window (the ! videoscale element takes care of that) +=====resized, fit in window=====  +<font size='2'>   gst-launch-0.10 rtspsrc location=rtsp://192.168.0.9:554 ! rtpjpegdepay ! jpegdec ! queue ! ffmpegcolorspace ! videoscale ! xvimagesink sync=false   gst-launch-0.10 rtspsrc location=rtsp://192.168.0.9:554 ! rtpjpegdepay ! jpegdec ! queue ! ffmpegcolorspace ! videoscale ! xvimagesink sync=false  +</font> === Dumping === === Dumping === ==== mjpeg dumping ==== ==== mjpeg dumping ==== - +<font size='2'> -gst-launch -v rtspsrc location=rtsp://192.168.0.9:554 ! queue ! rtpjpegdepay ! videorate ! capsfilter caps = "image/jpeg, framerate=(fraction)25/1, width=1024, height=768" ! queue ! matroskamux ! filesink location=/tmp/test.mkv+ gst-launch -v rtspsrc location=rtsp://192.168.0.9:554 ! queue ! rtpjpegdepay ! \  +    videorate ! capsfilter caps = "image/jpeg, framerate=(fraction)25/1, width=1024, height=768" ! \  +    queue ! matroskamux ! filesink location=/tmp/test.mkv  +</font> ==== YUV Dumping ==== ==== YUV Dumping ==== - +<font size='2'> -gst-launch -v rtspsrc location=rtsp://192.168.0.9:554 ! queue ! rtpjpegdepay ! queue ! jpegdec ! queue ! videorate ! capsfilter caps="video/x-raw-yuv, format=(fourcc)I420, width=(int)1024, height=(int)768, framerate=(fraction)25/1" ! queue ! avimux ! filesink location=/tmp/test.avi+ gst-launch -v rtspsrc location=rtsp://192.168.0.9:554 ! queue ! rtpjpegdepay ! queue ! jpegdec ! queue ! \  +    videorate ! capsfilter caps="video/x-raw-yuv, format=(fourcc)I420, width=(int)1024, height=(int)768, framerate (fraction)25/1" ! \  +    queue ! avimux ! filesink location=/tmp/test.avi  +</font> === Dump transcoding example === === Dump transcoding example === - +<font size='2'> -gst-launch filesrc location=test.mkv ! matroskademux ! queue ! jpegdec ! queue ! theoraenc bitrate=4000 ! queue ! oggmux ! filesink location=test.ogg+ gst-launch filesrc location=test.mkv ! matroskademux ! queue ! jpegdec ! queue ! theoraenc bitrate=4000 ! queue ! oggmux ! filesink location=test.ogg - +</font> === Live encoding === === Live encoding === - +<font size='2'> -gst-launch -v rtspsrc location=rtsp://192.168.0.9:554 ! queue ! rtpjpegdepay ! queue ! jpegdec ! queue ! videorate ! capsfilter caps="video/x-raw-yuv, format=(fourcc)I420, width=(int)1024, height=(int)768, framerate=(fraction)25/1" ! queue ! theoraenc bitrate=4000 ! queue ! oggmux ! filesink location=/tmp/test1024.ogg+ gst-launch -v rtspsrc location=rtsp://192.168.0.9:554 ! queue ! rtpjpegdepay ! queue ! jpegdec ! queue ! \ - +    videorate ! capsfilter caps="video/x-raw-yuv, format=(fourcc)I420, width=(int)1024, height=(int)768, framerate=(fraction)25/1" ! \ -I did some benchmarks; a Core 2 Quad Q6600 (2.4 Ghz) is not powerful enough for h264 encoding @fullHD resolution (using 4 treads).+    queue ! theoraenc bitrate=4000 ! queue ! oggmux ! filesink location=/tmp/test1024.ogg  +</font>  +Notes:  +* I did some benchmarks; a Core 2 Quad Q6600 (2.4 Ghz) is not powerful enough for h264 encoding @fullHD resolution (using 4 treads). [[Category:393]] [[Category:393]] [[Category:353]] [[Category:353]] Oleg

← Older revision Revision as of 00:31, 10 June 2016 (14 intermediate revisions not shown)Line 8: Line 8: = Installing GStreamer = = Installing GStreamer = -[http://blog.nicolargo.com/ NicoLargo] made [http://blog.nicolargo.com/2010/05/installation-de-tout-les-composants-gstreamer-sous-ubuntu.html a script] to automatically install all the required packages for GStreamer on Ubuntu 10.04. Should work up to for (K)Ubuntu 16.04 as well.+[http://blog.nicolargo.com/ NicoLargo] made [http://blog.nicolargo.com/2010/05/installation-de-tout-les-composants-gstreamer-sous-ubuntu.html a script] to automatically install all the required packages for GStreamer on Ubuntu 10.04. Should work for up to (K)Ubuntu 16.04 as well. = Tips = = Tips = Line 21: Line 21: <b>Note: replace width and height accordingly to your camera setup and your computer's horsepower :P)</b> <b>Note: replace width and height accordingly to your camera setup and your computer's horsepower :P)</b> -== GStreamer 1.0==+== GStreamer 1.0 (10393 & 10353)== ===Display=== ===Display=== Line 28: Line 28:   gst-launch-1.0 souphttpsrc is-live=true location=http://192.168.0.8:2323/mimg ! jpegdec ! xvimagesink   gst-launch-1.0 souphttpsrc is-live=true location=http://192.168.0.8:2323/mimg ! jpegdec ! xvimagesink </font> </font>  +Notes:  +* 10393 ports are 2323-2326  +* 10353 port is 8081  + ====2. Multipart JPEGs (mjpeg), 4 channels in 1 window==== ====2. Multipart JPEGs (mjpeg), 4 channels in 1 window==== * Each source is resized to 640x480 * Each source is resized to 640x480 Line 69: Line 73: </font> </font> -== GStreamer 0.10==+====3. RTSP stream from the camera's streamer====  +Notes:  +* careful with streams at higher resolution than 1920x1088  +* 10353 - works  +* <b>10393 - doesn't have a streamer yet</b>  +=====a. native resolution=====  +<font size='2'>  + gst-launch-1.0 rtspsrc location=rtsp://192.168.0.9:554 ! rtpjpegdepay ! jpegdec ! xvimagesink sync=false  +</font>  +=====b. with resize=====  +<font size='2'>  + gst-launch-1.0 rtspsrc location=rtsp://192.168.0.9:554 ! rtpjpegdepay ! jpegdec ! videoscale ! video/x-raw,width=640,height=480 ! xvimagesink sync=false  +</font>  +  +== GStreamer 0.10 (10353)== === Display === === Display === -careful with streams at higher resolution than 1920x1088+Notes:  +* Careful with streams at higher resolution than 1920x1088 -Display the cameras live video stream at its native resolution:+====Live RTSP stream at native resolution====  +<font size='2'>   gst-launch-0.10 rtspsrc location=rtsp://192.168.0.9:554 ! rtpjpegdepay ! jpegdec ! queue ! ffmpegcolorspace ! xvimagesink sync=false   gst-launch-0.10 rtspsrc location=rtsp://192.168.0.9:554 ! rtpjpegdepay ! jpegdec ! queue ! ffmpegcolorspace ! xvimagesink sync=false  +</font> -Display the cameras live video stream, resize to fit window (the ! videoscale element takes care of that) +====Live RTSP stream resized to fit window====  +<font size='2'>   gst-launch-0.10 rtspsrc location=rtsp://192.168.0.9:554 ! rtpjpegdepay ! jpegdec ! queue ! ffmpegcolorspace ! videoscale ! xvimagesink sync=false   gst-launch-0.10 rtspsrc location=rtsp://192.168.0.9:554 ! rtpjpegdepay ! jpegdec ! queue ! ffmpegcolorspace ! videoscale ! xvimagesink sync=false  +</font> === Dumping === === Dumping === ==== mjpeg dumping ==== ==== mjpeg dumping ==== - +<font size='2'> -gst-launch -v rtspsrc location=rtsp://192.168.0.9:554 ! queue ! rtpjpegdepay ! videorate ! capsfilter caps = "image/jpeg, framerate=(fraction)25/1, width=1024, height=768" ! queue ! matroskamux ! filesink location=/tmp/test.mkv+ gst-launch -v rtspsrc location=rtsp://192.168.0.9:554 ! queue ! rtpjpegdepay ! \  +    videorate ! capsfilter caps = "image/jpeg, framerate=(fraction)25/1, width=1024, height=768" ! \  +    queue ! matroskamux ! filesink location=/tmp/test.mkv  +</font> ==== YUV Dumping ==== ==== YUV Dumping ==== - +<font size='2'> -gst-launch -v rtspsrc location=rtsp://192.168.0.9:554 ! queue ! rtpjpegdepay ! queue ! jpegdec ! queue ! videorate ! capsfilter caps="video/x-raw-yuv, format=(fourcc)I420, width=(int)1024, height=(int)768, framerate=(fraction)25/1" ! queue ! avimux ! filesink location=/tmp/test.avi+ gst-launch -v rtspsrc location=rtsp://192.168.0.9:554 ! queue ! rtpjpegdepay ! queue ! jpegdec ! queue ! \  +    videorate ! capsfilter caps="video/x-raw-yuv, format=(fourcc)I420, width=(int)1024, height=(int)768, framerate (fraction)25/1" ! \  +    queue ! avimux ! filesink location=/tmp/test.avi  +</font> === Dump transcoding example === === Dump transcoding example === - +<font size='2'> -gst-launch filesrc location=test.mkv ! matroskademux ! queue ! jpegdec ! queue ! theoraenc bitrate=4000 ! queue ! oggmux ! filesink location=test.ogg+ gst-launch filesrc location=test.mkv ! matroskademux ! queue ! jpegdec ! queue ! theoraenc bitrate=4000 ! queue ! oggmux ! filesink location=test.ogg - +</font> === Live encoding === === Live encoding === - +<font size='2'> -gst-launch -v rtspsrc location=rtsp://192.168.0.9:554 ! queue ! rtpjpegdepay ! queue ! jpegdec ! queue ! videorate ! capsfilter caps="video/x-raw-yuv, format=(fourcc)I420, width=(int)1024, height=(int)768, framerate=(fraction)25/1" ! queue ! theoraenc bitrate=4000 ! queue ! oggmux ! filesink location=/tmp/test1024.ogg+ gst-launch -v rtspsrc location=rtsp://192.168.0.9:554 ! queue ! rtpjpegdepay ! queue ! jpegdec ! queue ! \ - +    videorate ! capsfilter caps="video/x-raw-yuv, format=(fourcc)I420, width=(int)1024, height=(int)768, framerate=(fraction)25/1" ! \  +    queue ! theoraenc bitrate=4000 ! queue ! oggmux ! filesink location=/tmp/test1024.ogg  +</font> I did some benchmarks; a Core 2 Quad Q6600 (2.4 Ghz) is not powerful enough for h264 encoding @fullHD resolution (using 4 treads). I did some benchmarks; a Core 2 Quad Q6600 (2.4 Ghz) is not powerful enough for h264 encoding @fullHD resolution (using 4 treads). [[Category:393]] [[Category:393]] [[Category:353]] [[Category:353]] Oleg

← Older revision Revision as of 23:58, 9 June 2016 Line 117: Line 117: -[[Category:Elphel393]]+[[Category:393]] Oleg

← Older revision Revision as of 23:58, 9 June 2016 (7 intermediate revisions not shown)Line 20: Line 20: <b>Note: replace width and height accordingly to your camera setup and your computer's horsepower :P)</b> <b>Note: replace width and height accordingly to your camera setup and your computer's horsepower :P)</b>  +  +== GStreamer 1.0==  +  +===Display===  +====1. Multipart JPEG (mjpeg), 1 channel====  +<font size='2'>  + gst-launch-1.0 souphttpsrc is-live=true location=http://192.168.0.8:2323/mimg ! jpegdec ! xvimagesink  +</font>  +====2. Multipart JPEGs (mjpeg), 4 channels in 1 window====  +* Each source is resized to 640x480  +* Text overlay and borders added  +''display4in1.sh'':  +<font size='2'>  + #!/bin/sh  + LOC1="http://192.168.0.8:2323/mimg"  + LOC2="http://192.168.0.8:2324/mimg"  + LOC3="http://192.168.0.8:2325/mimg"  + LOC4="http://192.168.0.8:2326/mimg"  +  + LABEL1="CHN1"  + LABEL2="CHN2"  + LABEL3="CHN3"  + LABEL4="CHN4"  +  + #souphttpsrc  + SOUP="souphttpsrc is-live=true"  + #image parameters  + PI="image/jpeg,width=1,height=1,framerate=1000/1,pixel-aspect-ratio=1/1"  + #video parameters  + PV="videoscale ! video/x-raw,width=640,height=480"  + #videobox parameters  + PVB="videobox fill=Black top=-4 bottom=-2 left=-4 right=-2 border-alpha=0.5"  + #textoverlay parameters  + PTO="textoverlay font-desc=\"Sans 24\" shaded-background=true valignment=top halignment=left"  +  + gst-launch-1.0 -ve videomixer name=mix \  +    sink_0::alpha=1 sink_0::xpos=0  sink_0::ypos=0 \  +    sink_1::alpha=1 sink_1::xpos=646 sink_1::ypos=0 \  +    sink_2::alpha=1 sink_2::xpos=0  sink_2::ypos=486 \  +    sink_3::alpha=1 sink_3::xpos=646 sink_3::ypos=486 \  +    ! \  +    xvimagesink sync=false \  +    $SOUP location=$LOC1 ! $PI ! jpegdec ! $PV ! $PVB ! $PTO text=$LABEL1 ! mix. \  +    $SOUP location=$LOC2 ! $PI ! jpegdec ! $PV ! $PVB ! $PTO text=$LABEL2 ! mix. \  +    $SOUP location=$LOC3 ! $PI ! jpegdec ! $PV ! $PVB ! $PTO text=$LABEL3 ! mix. \  +    $SOUP location=$LOC4 ! $PI ! jpegdec ! $PV ! $PVB ! $PTO text=$LABEL4 ! mix.  +  +</font> == GStreamer 0.10== == GStreamer 0.10== -=== Displaying ===+=== Display === careful with streams at higher resolution than 1920x1088 careful with streams at higher resolution than 1920x1088 Line 50: Line 98: I did some benchmarks; a Core 2 Quad Q6600 (2.4 Ghz) is not powerful enough for h264 encoding @fullHD resolution (using 4 treads). I did some benchmarks; a Core 2 Quad Q6600 (2.4 Ghz) is not powerful enough for h264 encoding @fullHD resolution (using 4 treads).  +  +[[Category:393]]  +[[Category:353]] Oleg

Command line examples:

← Older revision Revision as of 22:57, 9 June 2016 Line 20: Line 20: <b>Note: replace width and height accordingly to your camera setup and your computer's horsepower :P)</b> <b>Note: replace width and height accordingly to your camera setup and your computer's horsepower :P)</b>  +  +== GStreamer 1.0==  +  +===Display===  +  +====Multipart JPEGs, 4 channels in 1 window====  +* Each source is resized to 640x480  +* Text overlay and borders added  +<font size='2'>  + gst-launch-1.0 -ve videomixer name=mix \  +    sink_0::alpha=1 sink_0::xpos=0  sink_0::ypos=0 \  +    sink_1::alpha=1 sink_1::xpos=646 sink_1::ypos=0 \  +    sink_2::alpha=1 sink_2::xpos=0  sink_2::ypos=486 \  +    sink_3::alpha=1 sink_3::xpos=646 sink_3::ypos=486 \  +    ! \  +    xvimagesink sync=false \  +    souphttpsrc is-live=true location=http://192.168.0.8:2323/noexif/mimg ! image/jpeg,width=1,height=1,framerate=1000/1,pixel-aspect-ratio=1/1 ! \  +    jpegdec ! videoscale ! video/x-raw,width=640,height=480 ! videobox fill=Black top=-4 bottom=-2 left=-4 right=-2 ! \  +    textoverlay text=cam1 halignment=left valignment=top text-width=20 text-height=20 shaded-background=true ! mix. \  +    souphttpsrc is-live=true location=http://192.168.0.8:2324/noexif/mimg ! image/jpeg,width=1,height=1,framerate=1000/1,pixel-aspect-ratio=1/1 ! \  +    jpegdec ! videoscale ! video/x-raw,width=640,height=480 ! videobox fill=Black top=-4 bottom=-2 left=-2 right=-4 ! \  +    textoverlay text=cam2 halignment=left valignment=top text-width=20 text-height=20 shaded-background=true ! mix. \  +    souphttpsrc is-live=true location=http://192.168.0.8:2325/noexif/mimg ! image/jpeg,width=1,height=1,framerate=1000/1,pixel-aspect-ratio=1/1 ! \  +    jpegdec ! videoscale ! video/x-raw,width=640,height=480 ! videobox fill=Black top=-2 bottom=-4 left=-4 right=-2 ! \  +    textoverlay text=cam3 halignment=left valignment=top text-width=20 text-height=20 shaded-background=true ! mix. \  +    souphttpsrc is-live=true location=http://192.168.0.8:2326/noexif/mimg ! image/jpeg,width=1,height=1,framerate=1000/1,pixel-aspect-ratio=1/1 ! \  +    jpegdec ! videoscale ! video/x-raw,width=640,height=480 ! videobox fill=Black top=-2 bottom=-4 left=-2 right=-4 ! \  +    textoverlay text=cam4 halignment=left valignment=top text-width=20 text-height=20 shaded-background=true ! mix.  +</font> == GStreamer 0.10== == GStreamer 0.10== -=== Displaying ===+=== Display === careful with streams at higher resolution than 1920x1088 careful with streams at higher resolution than 1920x1088 Oleg

0353-18-31 - tripod mount plate:

← Older revision Revision as of 22:53, 9 June 2016 Line 8: Line 8: {{Cad4a|0393-18-31}} {{Cad4a|0393-18-31}} ---- ----  +=== 0353-18-31A - tripod mount plate, Rev "A" ===  +{{Cad4a|0393-18-31A}}  +----  + === 0393-18-50 - IMU enclosure === === 0393-18-50 - IMU enclosure === {{Cad4a|0393-18-50}} {{Cad4a|0393-18-50}} Mikhail

Mikhail Karpenko committed changes to the Elphel git project :
Production

Mikhail Karpenko committed changes to the Elphel git project :
Update 0393-18-31 to RevA

← Older revision Revision as of 22:51, 9 June 2016 (4 intermediate revisions not shown)Line 1: Line 1: -Gstreamer is a modular node based player as well as encoder in a single application. It is possible to create chains of so called elements with a wide range of different plugins.+GStreamer is a modular node based player as well as encoder in a single application. It is possible to create chains of so called elements with a wide range of different plugins. -= Gstreamer =+= GStreamer = GStreamer is a library for constructing graphs of media-handling components. The applications it supports range from simple Ogg/Vorbis playback, audio/video streaming to complex audio (mixing) and video (non-linear editing) processing. GStreamer is a library for constructing graphs of media-handling components. The applications it supports range from simple Ogg/Vorbis playback, audio/video streaming to complex audio (mixing) and video (non-linear editing) processing. Line 8: Line 8: = Installing GStreamer = = Installing GStreamer = -[http://blog.nicolargo.com/ NicoLargo] made a script to automatically install all the required packages for GStreamer on Ubuntu 10.04. Very simple and useful, just download and execute the script: http://svn.nicolargo.com/ubuntupostinstall/trunk/gstreamerinstall.sh+[http://blog.nicolargo.com/ NicoLargo] made [http://blog.nicolargo.com/2010/05/installation-de-tout-les-composants-gstreamer-sous-ubuntu.html a script] to automatically install all the required packages for GStreamer on Ubuntu 10.04. Should work up to for (K)Ubuntu 16.04 as well. = Tips = = Tips = == How to get 25 FPS ? == == How to get 25 FPS ? == -You won't get 25 fps if autoexposure is on and local brightness not high enough: the camera will automatically lower framerate for keeping clear picture. Either lighten up, or play with image settings (notably, gain).+Depends on the sensor and the exposure:  +* In the sensor's datasheet find resolutions that allow the required FPS.  +* You won't get 25 fps if autoexposure is on and local brightness not high enough: the camera will automatically lower framerate for keeping clear picture. Either lighten up, or play with image settings (notably, gain). -= Commandline examples =  -(Note: replace width and height accordingly to your camera setup and your computer's horsepower :p).+= Command line examples = -== Displaying ==+<b>Note: replace width and height accordingly to your camera setup and your computer's horsepower :P)</b>  +   +== GStreamer 0.10==  +   +=== Displaying === careful with streams at higher resolution than 1920x1088 careful with streams at higher resolution than 1920x1088 Line 27: Line 32:   gst-launch-0.10 rtspsrc location=rtsp://192.168.0.9:554 ! rtpjpegdepay ! jpegdec ! queue ! ffmpegcolorspace ! videoscale ! xvimagesink sync=false   gst-launch-0.10 rtspsrc location=rtsp://192.168.0.9:554 ! rtpjpegdepay ! jpegdec ! queue ! ffmpegcolorspace ! videoscale ! xvimagesink sync=false -== Dumping ==+=== Dumping === -=== mjpeg dumping ===+==== mjpeg dumping ==== gst-launch -v rtspsrc location=rtsp://192.168.0.9:554 ! queue ! rtpjpegdepay ! videorate ! capsfilter caps = "image/jpeg, framerate=(fraction)25/1, width=1024, height=768" ! queue ! matroskamux ! filesink location=/tmp/test.mkv gst-launch -v rtspsrc location=rtsp://192.168.0.9:554 ! queue ! rtpjpegdepay ! videorate ! capsfilter caps = "image/jpeg, framerate=(fraction)25/1, width=1024, height=768" ! queue ! matroskamux ! filesink location=/tmp/test.mkv -=== YUV Dumping ===+==== YUV Dumping ==== gst-launch -v rtspsrc location=rtsp://192.168.0.9:554 ! queue ! rtpjpegdepay ! queue ! jpegdec ! queue ! videorate ! capsfilter caps="video/x-raw-yuv, format=(fourcc)I420, width=(int)1024, height=(int)768, framerate=(fraction)25/1" ! queue ! avimux ! filesink location=/tmp/test.avi gst-launch -v rtspsrc location=rtsp://192.168.0.9:554 ! queue ! rtpjpegdepay ! queue ! jpegdec ! queue ! videorate ! capsfilter caps="video/x-raw-yuv, format=(fourcc)I420, width=(int)1024, height=(int)768, framerate=(fraction)25/1" ! queue ! avimux ! filesink location=/tmp/test.avi -== Dump transcoding example ==+=== Dump transcoding example === gst-launch filesrc location=test.mkv ! matroskademux ! queue ! jpegdec ! queue ! theoraenc bitrate=4000 ! queue ! oggmux ! filesink location=test.ogg gst-launch filesrc location=test.mkv ! matroskademux ! queue ! jpegdec ! queue ! theoraenc bitrate=4000 ! queue ! oggmux ! filesink location=test.ogg -== Live encoding ==+=== Live encoding === gst-launch -v rtspsrc location=rtsp://192.168.0.9:554 ! queue ! rtpjpegdepay ! queue ! jpegdec ! queue ! videorate ! capsfilter caps="video/x-raw-yuv, format=(fourcc)I420, width=(int)1024, height=(int)768, framerate=(fraction)25/1" ! queue ! theoraenc bitrate=4000 ! queue ! oggmux ! filesink location=/tmp/test1024.ogg gst-launch -v rtspsrc location=rtsp://192.168.0.9:554 ! queue ! rtpjpegdepay ! queue ! jpegdec ! queue ! videorate ! capsfilter caps="video/x-raw-yuv, format=(fourcc)I420, width=(int)1024, height=(int)768, framerate=(fraction)25/1" ! queue ! theoraenc bitrate=4000 ! queue ! oggmux ! filesink location=/tmp/test1024.ogg I did some benchmarks; a Core 2 Quad Q6600 (2.4 Ghz) is not powerful enough for h264 encoding @fullHD resolution (using 4 treads). I did some benchmarks; a Core 2 Quad Q6600 (2.4 Ghz) is not powerful enough for h264 encoding @fullHD resolution (using 4 treads). Oleg

Mikhail Karpenko committed changes to the Elphel git project :
Production

Mikhail Karpenko committed changes to the Elphel git project :
Update 0393-11-Update 0393-11-Update 0393-11-Update 0393-11-04A

0393-11-04A - Cooling fan enclosure, RevA:

← Older revision Revision as of 22:03, 9 June 2016 (One intermediate revision not shown)Line 20: Line 20: {{Cad4a|0393-11-04}} {{Cad4a|0393-11-04}} ---- ----  +=== 0393-11-04A - Cooling fan enclosure, Rev "A" ===  +{{Cad4a|0393-11-04A}}  +----  + === 0393-11-10 - CPU heat plate === === 0393-11-10 - CPU heat plate === {{Cad4a|0393-11-10}} {{Cad4a|0393-11-10}} Mikhail

Mikhail Karpenko committed changes to the Elphel git project :
Merge branch 'master' of https://github.com/Elphel/mechanical-parts