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manual: Replace manual's effectswitch.c with newer test-effect-switch.c

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https://bugzilla.gnome.org/show_bug.cgi?id=721100
This commit is contained in:
Todd Agulnick 2014-01-03 07:25:37 -08:00 committed by Sebastian Dröge
parent 97103c90b0
commit cb1657fcea
1 changed files with 33 additions and 11 deletions
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44
docs/manual/advanced-dataaccess.xml
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@ -1369,8 +1369,12 @@ main (int argc, char **argv)
video effect on a simple pipeline every second. video effect on a simple pipeline every second.
</para> </para>
<programlisting> <programlisting>
<!-- example-begin effectswitch.c --> <!-- example-begin test-effect-switch.c -->
<![CDATA[ <![CDATA[
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h> #include <gst/gst.h>
static gchar *opt_effects = NULL; static gchar *opt_effects = NULL;
@ -1397,7 +1401,7 @@ event_probe_cb (GstPad * pad, GstPadProbeInfo * info, gpointer user_data)
gst_pad_remove_probe (pad, GST_PAD_PROBE_INFO_ID (info)); gst_pad_remove_probe (pad, GST_PAD_PROBE_INFO_ID (info));
/* push current effect back into the queue */ /* push current event back into the queue */
g_queue_push_tail (&effects, gst_object_ref (cur_effect)); g_queue_push_tail (&effects, gst_object_ref (cur_effect));
/* take next effect from the queue */ /* take next effect from the queue */
next = g_queue_pop_head (&effects); next = g_queue_pop_head (&effects);
@ -1498,11 +1502,11 @@ main (int argc, char **argv)
GOptionContext *ctx; GOptionContext *ctx;
GError *err = NULL; GError *err = NULL;
GMainLoop *loop; GMainLoop *loop;
GstElement *src, *sink; GstElement *src, *q1, *q2, *effect, *filter1, *filter2, *sink;
gchar **effect_names, **e; gchar **effect_names, **e;
ctx = g_option_context_new (""); ctx = g_option_context_new ("");
g_option_context_add_main_entries (ctx, options, NULL); g_option_context_add_main_entries (ctx, options, GETTEXT_PACKAGE);
g_option_context_add_group (ctx, gst_init_get_option_group ()); g_option_context_add_group (ctx, gst_init_get_option_group ());
if (!g_option_context_parse (ctx, &argc, &argv, &err)) { if (!g_option_context_parse (ctx, &argc, &argv, &err)) {
g_print ("Error initializing: %s\n", err->message); g_print ("Error initializing: %s\n", err->message);
@ -1510,6 +1514,8 @@ main (int argc, char **argv)
} }
g_option_context_free (ctx); g_option_context_free (ctx);
GST_FIXME ("Multiple things to check/fix, see source code");
if (opt_effects != NULL) if (opt_effects != NULL)
effect_names = g_strsplit (opt_effects, ",", -1); effect_names = g_strsplit (opt_effects, ",", -1);
else else
@ -1530,21 +1536,37 @@ main (int argc, char **argv)
src = gst_element_factory_make ("videotestsrc", NULL); src = gst_element_factory_make ("videotestsrc", NULL);
g_object_set (src, "is-live", TRUE, NULL); g_object_set (src, "is-live", TRUE, NULL);
blockpad = gst_element_get_static_pad (src, "src"); filter1 = gst_element_factory_make ("capsfilter", NULL);
gst_util_set_object_arg (G_OBJECT (filter1), "caps",
"video/x-raw, width=320, height=240, "
"format={ I420, YV12, YUY2, UYVY, AYUV, Y41B, Y42B, "
"YVYU, Y444, v210, v216, NV12, NV21, UYVP, A420, YUV9, YVU9, IYU1 }");
q1 = gst_element_factory_make ("queue", NULL);
blockpad = gst_element_get_static_pad (q1, "src");
conv_before = gst_element_factory_make ("videoconvert", NULL); conv_before = gst_element_factory_make ("videoconvert", NULL);
cur_effect = g_queue_pop_head (&effects); effect = g_queue_pop_head (&effects);
cur_effect = effect;
conv_after = gst_element_factory_make ("videoconvert", NULL); conv_after = gst_element_factory_make ("videoconvert", NULL);
q2 = gst_element_factory_make ("queue", NULL);
filter2 = gst_element_factory_make ("capsfilter", NULL);
gst_util_set_object_arg (G_OBJECT (filter2), "caps",
"video/x-raw, width=320, height=240, "
"format={ RGBx, BGRx, xRGB, xBGR, RGBA, BGRA, ARGB, ABGR, RGB, BGR }");
sink = gst_element_factory_make ("ximagesink", NULL); sink = gst_element_factory_make ("ximagesink", NULL);
gst_bin_add_many (GST_BIN (pipeline), src, conv_before, cur_effect, gst_bin_add_many (GST_BIN (pipeline), src, filter1, q1, conv_before, effect,
conv_after, sink, NULL); conv_after, q2, sink, NULL);
gst_element_link_many (src, conv_before, cur_effect, conv_after, gst_element_link_many (src, filter1, q1, conv_before, effect, conv_after,
sink, NULL); q2, sink, NULL);
gst_element_set_state (pipeline, GST_STATE_PLAYING); gst_element_set_state (pipeline, GST_STATE_PLAYING);
@ -1562,7 +1584,7 @@ main (int argc, char **argv)
return 0; return 0;
} }
]]> ]]>
<!-- example-end effectswitch.c --> <!-- example-end test-effect-switch.c -->
</programlisting> </programlisting>
<para> <para>
Note how we added videoconvert elements before and after the effect. Note how we added videoconvert elements before and after the effect.