diff options
Diffstat (limited to 'tests/examples/capsfilter/capsfilter1.c')
-rw-r--r-- | tests/examples/capsfilter/capsfilter1.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/tests/examples/capsfilter/capsfilter1.c b/tests/examples/capsfilter/capsfilter1.c new file mode 100644 index 00000000..a59f728e --- /dev/null +++ b/tests/examples/capsfilter/capsfilter1.c @@ -0,0 +1,87 @@ +#include <string.h> +#include <gst/gst.h> + +/* This app uses a filter to connect colorspace and videosink + * so that only RGB data can pass the connection, colorspace will use + * a converter to convert the I420 data to RGB. Without a filter, this + * connection would use the I420 format (assuming Xv is enabled) */ + +static void +new_pad_func (GstElement * element, GstPad * newpad, gpointer data) +{ + GstElement *pipeline = (GstElement *) data; + GstElement *queue = gst_bin_get_by_name (GST_BIN (pipeline), "queue"); + + if (!strcmp (gst_pad_get_name (newpad), "video_00")) { + gst_element_set_state (pipeline, GST_STATE_PAUSED); + gst_pad_link (newpad, gst_element_get_pad (queue, "sink")); + gst_element_set_state (pipeline, GST_STATE_PLAYING); + } +} + +gint +main (gint argc, gchar * argv[]) +{ + GstElement *pipeline; + GstElement *filesrc; + GstElement *demux; + GstElement *thread; + GstElement *queue; + GstElement *mpeg2dec; + GstElement *colorspace; + GstElement *videosink; + gboolean res; + + gst_init (&argc, &argv); + + if (argc < 2) { + g_print ("usage: %s <mpeg1 system stream>\n", argv[0]); + return (-1); + } + + pipeline = gst_pipeline_new ("main_pipeline"); + filesrc = gst_element_factory_make ("filesrc", "filesrc"); + g_return_val_if_fail (filesrc, -1); + g_object_set (G_OBJECT (filesrc), "location", argv[1], NULL); + demux = gst_element_factory_make ("mpegdemux", "demux"); + g_return_val_if_fail (demux, -1); + g_signal_connect (G_OBJECT (demux), "new_pad", G_CALLBACK (new_pad_func), + pipeline); + + thread = gst_thread_new ("thread"); + queue = gst_element_factory_make ("queue", "queue"); + mpeg2dec = gst_element_factory_make ("mpeg2dec", "mpeg2dec"); + g_return_val_if_fail (mpeg2dec, -1); + colorspace = gst_element_factory_make ("ffmpegcolorspace", "colorspace"); + g_return_val_if_fail (colorspace, -1); + videosink = gst_element_factory_make (DEFAULT_VIDEOSINK, "videosink"); + g_return_val_if_fail (videosink, -1); + + gst_bin_add (GST_BIN (pipeline), filesrc); + gst_bin_add (GST_BIN (pipeline), demux); + + gst_bin_add (GST_BIN (thread), queue); + gst_bin_add (GST_BIN (thread), mpeg2dec); + gst_bin_add (GST_BIN (thread), colorspace); + gst_bin_add (GST_BIN (thread), videosink); + gst_bin_add (GST_BIN (pipeline), thread); + + gst_element_link_pads (filesrc, "src", demux, "sink"); + gst_element_link_pads (queue, "src", mpeg2dec, "sink"); + gst_element_link_pads (mpeg2dec, "src", colorspace, "sink"); + /* force RGB data passing between colorspace and videosink */ + res = gst_element_link_pads_filtered (colorspace, "src", videosink, "sink", + gst_caps_new_simple ("video/x-raw-rgb", NULL)); + if (!res) { + g_print ("could not connect colorspace and videosink\n"); + return -1; + } + + gst_element_set_state (pipeline, GST_STATE_PLAYING); + + while (gst_bin_iterate (GST_BIN (pipeline))); + + gst_element_set_state (pipeline, GST_STATE_NULL); + + return 0; +} |