Revision 87335b80 src/libsharedvideo/writer-example.cpp
| b/src/libsharedvideo/writer-example.cpp | ||
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GstElement *pipeline; |
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GstElement *source; |
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GstElement *tee; |
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GstElement *qlocalxv; |
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exit(sig); |
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} |
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static gboolean |
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bus_call (GstBus *bus, |
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GstMessage *msg, |
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gpointer data) |
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{
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GMainLoop *loop = (GMainLoop *) data; |
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switch (GST_MESSAGE_TYPE (msg)) {
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case GST_MESSAGE_EOS: |
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g_print ("End of stream\n");
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g_main_loop_quit (loop); |
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break; |
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case GST_MESSAGE_ERROR: {
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gchar *debug; |
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GError *error; |
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gst_message_parse_error (msg, &error, &debug); |
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g_free (debug); |
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g_printerr ("Error: %s\n", error->message);
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g_error_free (error); |
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g_main_loop_quit (loop); |
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break; |
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} |
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default: |
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break; |
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} |
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return TRUE; |
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} |
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//will create the shared video, reading from the tee element |
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static gboolean |
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add_shared_video_writer() |
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{
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writer = new ScenicSharedVideo::Writer (pipeline,tee,socketName); |
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g_print ("Now writing to the shared memory\n");
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return FALSE; |
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} |
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| ... | ... | |
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{
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(void) signal(SIGINT,leave); |
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/* Initialisation */ |
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gst_init (&argc, &argv); |
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GMainLoop *loop = g_main_loop_new (NULL, FALSE); |
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/* Check input arguments */ |
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g_printerr ("Usage: %s <socket-path>\n", argv[0]);
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return -1; |
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} |
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socketName.append (argv[1]); |
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/* Create gstreamer elements */ |
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pipeline = gst_pipeline_new ("shared-video-writer");
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source = gst_element_factory_make ("videotestsrc", "video-source");
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pipeline = gst_pipeline_new (NULL);
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source = gst_element_factory_make ("videotestsrc", NULL);
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camsource = gst_element_factory_make ("v4l2src", NULL);
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timeoverlay = gst_element_factory_make ("timeoverlay", NULL);
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tee = gst_element_factory_make ("tee", NULL);
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qlocalxv = gst_element_factory_make ("queue", NULL);
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imgsink = gst_element_factory_make ("xvimagesink", NULL);
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return -1; |
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} |
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g_object_set (G_OBJECT (imgsink), "sync", FALSE, NULL); |
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/*specifying video format*/ |
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/* GstCaps *videocaps; */ |
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/* videocaps = gst_caps_new_simple ("video/x-raw-yuv", */
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/* "format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('I', '4', '2', '0'), */
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/* "framerate", GST_TYPE_FRACTION, 30, 1, */ |
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/* "pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1, */ |
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/* /\* "width", G_TYPE_INT, 600, *\/ */ |
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/* /\* "height", G_TYPE_INT, 400, *\/ */ |
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/* "width", G_TYPE_INT, 1920, */ |
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/* "height", G_TYPE_INT, 1080, */ |
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/* NULL); */ |
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/* we add a message handler */ |
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GstBus *bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline)); |
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gst_bus_add_watch (bus, bus_call, loop); |
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gst_object_unref (bus); |
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/* we add all elements into the pipeline */ |
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// GstCaps *videocaps; |
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// videocaps = gst_caps_new_simple ("video/x-raw-yuv",
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// "format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('I', '4', '2', '0'),
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// "framerate", GST_TYPE_FRACTION, 30, 1, |
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// "pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1, |
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// /* "width", G_TYPE_INT, 600, */ |
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// /* "height", G_TYPE_INT, 400, */ |
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// "width", G_TYPE_INT, 1920, |
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// "height", G_TYPE_INT, 1080, |
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// NULL); |
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gst_bin_add_many (GST_BIN (pipeline), |
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//source, |
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camsource, |
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timeoverlay, tee, qlocalxv, imgsink, NULL); |
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//init before set playing state |
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socketName.append (argv[1]); |
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//writer = new ScenicSharedVideo::Writer (pipeline,tee,socketName); |
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//shared video can be pluged before or after the pipeline state is set to PLAYING |
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g_timeout_add (1000, (GSourceFunc) add_shared_video_writer, NULL); |
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//add_shared_video_writer(); |
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/* we link the elements together */ |
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//gst_element_link_filtered (source, timeoverlay,videocaps); |
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gst_element_link (camsource,timeoverlay); |
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gst_element_link (timeoverlay, tee); |
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gst_element_link_many (tee, qlocalxv,imgsink,NULL); |
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g_object_set (G_OBJECT (imgsink), "sync", FALSE, NULL); |
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/* Set the pipeline to "playing" state*/ |
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g_print ("Now writing: %s\n", argv[1]);
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gst_element_set_state (pipeline, GST_STATE_PLAYING); |
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/* Iterate */ |
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g_print ("Running...\n");
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g_main_loop_run (loop); |
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/* Out of the main loop, clean up nicely */ |
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g_print ("Returned, stopping playback\n");
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gst_element_set_state (pipeline, GST_STATE_NULL); |
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g_print ("Deleting pipeline\n");
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gst_object_unref (GST_OBJECT (pipeline)); |
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