GStreamer » Historique » Version 5
P.G Bareges, 17/05/2013 17:47
| 1 | 1 | P.G Bareges | h1. GStreamer |
|---|---|---|---|
| 2 | 1 | P.G Bareges | |
| 3 | 1 | P.G Bareges | |
| 4 | 2 | P.G Bareges | h2. command line |
| 5 | 3 | P.G Bareges | |
| 6 | 3 | P.G Bareges | |
| 7 | 4 | P.G Bareges | h3. theora over udp |
| 8 | 1 | P.G Bareges | |
| 9 | 3 | P.G Bareges | *nécessite de lancer le receiver avant le sender... |
| 10 | 3 | P.G Bareges | *reprise possible du flux d'émission apres l'initialisation des 2 pipelines (sender/receive) |
| 11 | 3 | P.G Bareges | *ne marche pas sous windows. |
| 12 | 3 | P.G Bareges | |
| 13 | 1 | P.G Bareges | <pre> |
| 14 | 1 | P.G Bareges | Sender : |
| 15 | 1 | P.G Bareges | gst-launch-0.10 -v v4l2src device=/dev/video0 ! \ |
| 16 | 1 | P.G Bareges | 'video/x-raw-yuv,width=640,height=480,framerate=30/1' ! \ |
| 17 | 1 | P.G Bareges | theoraenc ! udpsink host=10.20.0.62 port=1234 |
| 18 | 1 | P.G Bareges | |
| 19 | 1 | P.G Bareges | Receiver : |
| 20 | 1 | P.G Bareges | gst-launch-0.10 -v udpsrc port=1234 \ |
| 21 | 1 | P.G Bareges | caps="video/x-theora, width=640, height=480, framerate=30/1, pixel-aspect-ratio=1/1" ! \ |
| 22 | 1 | P.G Bareges | theoradec ! xvimagesink |
| 23 | 1 | P.G Bareges | |
| 24 | 1 | P.G Bareges | stats on i7-2620M |
| 25 | 1 | P.G Bareges | |
| 26 | 1 | P.G Bareges | ps -eo psr,pid,tid,class,rtprio,ni,pri,pcpu,stat,wchan:14,comm | grep [g]st |
| 27 | 1 | P.G Bareges | 3 23360 23360 TS - 0 19 8.6 Sl+ poll_schedule_ gst-launch-0.10 |
| 28 | 2 | P.G Bareges | 2 23363 23363 TS - 0 19 47.8 Sl+ poll_schedule_ gst-launch-0.10 |
| 29 | 1 | P.G Bareges | |
| 30 | 1 | P.G Bareges | </pre> |
| 31 | 1 | P.G Bareges | |
| 32 | 3 | P.G Bareges | |
| 33 | 4 | P.G Bareges | h3. theora over rtp |
| 34 | 2 | P.G Bareges | |
| 35 | 3 | P.G Bareges | *le serveur envoie ses caps toute les 5 secondes via config-interval=5 |
| 36 | 3 | P.G Bareges | *marche sous windows \o/ :) |
| 37 | 2 | P.G Bareges | |
| 38 | 2 | P.G Bareges | <pre> |
| 39 | 2 | P.G Bareges | |
| 40 | 2 | P.G Bareges | sender: |
| 41 | 2 | P.G Bareges | |
| 42 | 2 | P.G Bareges | gst-launch-0.10 -v v4l2src device=/dev/video0 ! 'video/x-raw-yuv,width=640,height=480,framerate=30/1' ! theoraenc ! rtptheorapay config-interval=5 ! udpsink host=10.20.0.62 port=1234 |
| 43 | 2 | P.G Bareges | |
| 44 | 2 | P.G Bareges | receiver : |
| 45 | 2 | P.G Bareges | |
| 46 | 2 | P.G Bareges | gst-launch-0.10 -v udpsrc port=1234 caps="application/x-rtp" ! rtptheoradepay ! theoradec ! xvimagesink |
| 47 | 2 | P.G Bareges | |
| 48 | 2 | P.G Bareges | </pre> |
| 49 | 2 | P.G Bareges | |
| 50 | 2 | P.G Bareges | |
| 51 | 2 | P.G Bareges | |
| 52 | 1 | P.G Bareges | h2. Processing |
| 53 | 1 | P.G Bareges | |
| 54 | 1 | P.G Bareges | <pre> |
| 55 | 1 | P.G Bareges | /** |
| 56 | 1 | P.G Bareges | * Ripped from |
| 57 | 1 | P.G Bareges | * Camera capture pipelines. |
| 58 | 1 | P.G Bareges | * By Andres Colubri |
| 59 | 1 | P.G Bareges | * |
| 60 | 1 | P.G Bareges | * |
| 61 | 1 | P.G Bareges | */ |
| 62 | 1 | P.G Bareges | |
| 63 | 1 | P.G Bareges | import codeanticode.gsvideo.*; |
| 64 | 1 | P.G Bareges | |
| 65 | 1 | P.G Bareges | GSPipeline pipeline; |
| 66 | 1 | P.G Bareges | |
| 67 | 1 | P.G Bareges | void setup() { |
| 68 | 1 | P.G Bareges | size(640, 480); |
| 69 | 1 | P.G Bareges | frameRate(30); |
| 70 | 1 | P.G Bareges | pipeline = new GSPipeline(this, "udpsrc port=1234 caps=\"video/x-theora, width=640, height=480, framerate=30/1, pixel-aspect-ratio=1/1\" ! theoradec "); |
| 71 | 1 | P.G Bareges | pipeline.play(); |
| 72 | 1 | P.G Bareges | } |
| 73 | 1 | P.G Bareges | |
| 74 | 1 | P.G Bareges | void draw() { |
| 75 | 1 | P.G Bareges | // When the GSPipeline.available() method returns true, |
| 76 | 1 | P.G Bareges | // it means that a new frame is ready to be read. |
| 77 | 1 | P.G Bareges | if (pipeline.available()) { |
| 78 | 1 | P.G Bareges | pipeline.read(); |
| 79 | 1 | P.G Bareges | image(pipeline, 0, 0); |
| 80 | 1 | P.G Bareges | } |
| 81 | 1 | P.G Bareges | } |
| 82 | 1 | P.G Bareges | |
| 83 | 1 | P.G Bareges | |
| 84 | 1 | P.G Bareges | </pre> |
| 85 | 1 | P.G Bareges | |
| 86 | 1 | P.G Bareges | |
| 87 | 5 | P.G Bareges | h3. 2 Dazzle DVC 100 |
| 88 | 5 | P.G Bareges | |
| 89 | 5 | P.G Bareges | pour fonctionner, necessite de connecter les dazzles sur 2 bus differents r |
| 90 | 5 | P.G Bareges | <pre> |
| 91 | 5 | P.G Bareges | root@stream1:~# lsusb |
| 92 | 5 | P.G Bareges | Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub |
| 93 | 5 | P.G Bareges | Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub |
| 94 | 5 | P.G Bareges | Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub |
| 95 | 5 | P.G Bareges | Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub |
| 96 | 5 | P.G Bareges | Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub |
| 97 | 5 | P.G Bareges | Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub |
| 98 | 5 | P.G Bareges | Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub |
| 99 | 5 | P.G Bareges | Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub |
| 100 | 5 | P.G Bareges | Bus 001 Device 003: ID 2304:021a Pinnacle Systems, Inc. Dazzle DVC100 Audio Device |
| 101 | 5 | P.G Bareges | Bus 002 Device 002: ID 2304:021a Pinnacle Systems, Inc. Dazzle DVC100 Audio Device |
| 102 | 5 | P.G Bareges | |
| 103 | 5 | P.G Bareges | </pre> |
| 104 | 5 | P.G Bareges | |
| 105 | 5 | P.G Bareges | Gstreamer theora over udp avec 2 sources video mixé (WIP) |
| 106 | 5 | P.G Bareges | <pre> |
| 107 | 5 | P.G Bareges | gst-launch-0.10 videomixer name=mix sink_0::zorder=1 sink_1::xpos=480 sink_1::ypos=0 sink_1::zorder=2 ! ffmpegcolorspace ! theoraenc quality=32 ! udpsink host=127.0.0.1 port=1234 v4l2src device=/dev/video1 ! decodebin ! videoscale ! video/x-raw-yuv,width=160,height=120 ! videobox border-alpha=0 ! mix.sink_1 v4l2src device=/dev/video0 ! decodebin ! videoscale ! video/x-raw-yuv,width=640,height=480 ! videobox border-alpha=0 top=0 left=0 ! mix.sink_0 |
| 108 | 5 | P.G Bareges | |
| 109 | 5 | P.G Bareges | </pre> |
| 110 | 5 | P.G Bareges | |
| 111 | 5 | P.G Bareges | |
| 112 | 1 | P.G Bareges | h2. Liens |
| 113 | 1 | P.G Bareges | |
| 114 | 2 | P.G Bareges | |
| 115 | 2 | P.G Bareges | |
| 116 | 2 | P.G Bareges | *http://gsvideo.sourceforge.net/ |
| 117 | 2 | P.G Bareges | *http://wiki.oz9aec.net/index.php/Gstreamer_cheat_sheet |
| 118 | 2 | P.G Bareges | *http://lists.freedesktop.org/archives/gstreamer-devel/2011-July/032234.html |
| 119 | 5 | P.G Bareges | *http://www.noah.org/wiki/video_4_linux_2_notes |
| 120 | 5 | P.G Bareges | *http://wiki.oz9aec.net/index.php/Gstreamer_cheat_sheet |