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wpe: Make wpesrc!video pad an always pad

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There should always be a `video` pad no matter what.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2273>
This commit is contained in:
Thibault Saunier 2021-05-21 10:52:01 -04:00
parent 870d9b8bd6
commit f29e75d1da
3 changed files with 29 additions and 40 deletions
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2
docs/plugins/gst_plugins_cache.json
View file

@ -229248,7 +229248,7 @@
"video": {
"caps": "video/x-raw(memory:GLMemory):\n format: RGBA\n width: [ 1, 2147483647 ]\n height: [ 1, 2147483647 ]\n framerate: [ 0/1, 2147483647/1 ]\npixel-aspect-ratio: 1/1\n texture-target: 2D\nvideo/x-raw:\n format: BGRA\n width: [ 1, 2147483647 ]\n height: [ 1, 2147483647 ]\n framerate: [ 0/1, 2147483647/1 ]\npixel-aspect-ratio: 1/1\n",
"direction": "src",
"presence": "sometimes"
"presence": "always"
}
},
"properties": {

46
ext/wpe/gstwpesrcbin.cpp
View file

@ -173,7 +173,7 @@ G_DEFINE_TYPE_WITH_CODE (GstWpeSrc, gst_wpe_src, GST_TYPE_BIN,
* Since: 1.20
*/
static GstStaticPadTemplate video_src_factory =
GST_STATIC_PAD_TEMPLATE ("video", GST_PAD_SRC, GST_PAD_SOMETIMES,
GST_STATIC_PAD_TEMPLATE ("video", GST_PAD_SRC, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw(memory:GLMemory), "
"format = (string) RGBA, "
"width = " GST_VIDEO_SIZE_RANGE ", "
@ -360,32 +360,7 @@ gst_wpe_src_load_bytes (GstWpeVideoSrc * src, GBytes * bytes)
static void
gst_wpe_src_set_location (GstWpeSrc * src, const gchar * location)
{
GstPad *pad;
GstPad *ghost_pad;
GstProxyPad *proxy_pad;
g_object_set (src->video_src, "location", location, NULL);
ghost_pad = gst_element_get_static_pad (GST_ELEMENT_CAST (src), "video");
if (GST_IS_PAD (ghost_pad)) {
gst_object_unref (ghost_pad);
return;
}
gst_bin_add (GST_BIN_CAST (src), src->video_src);
pad = gst_element_get_static_pad (GST_ELEMENT_CAST (src->video_src), "src");
ghost_pad = gst_ghost_pad_new_from_template ("video", pad,
gst_static_pad_template_get (&video_src_factory));
proxy_pad = gst_proxy_pad_get_internal (GST_PROXY_PAD (ghost_pad));
gst_pad_set_active (GST_PAD_CAST (proxy_pad), TRUE);
gst_element_add_pad (GST_ELEMENT_CAST (src), GST_PAD_CAST (ghost_pad));
gst_flow_combiner_add_pad (src->flow_combiner, GST_PAD_CAST (ghost_pad));
gst_pad_set_chain_function (GST_PAD_CAST (proxy_pad), gst_wpe_src_chain_buffer);
gst_object_unref (proxy_pad);
gst_object_unref (pad);
}
static void
@ -463,6 +438,10 @@ gst_wpe_src_uri_handler_init (gpointer iface_ptr, gpointer data)
static void
gst_wpe_src_init (GstWpeSrc * src)
{
GstPad *pad;
GstPad *ghost_pad;
GstProxyPad *proxy_pad;
gst_bin_set_suppressed_flags (GST_BIN_CAST (src),
static_cast<GstElementFlags>(GST_ELEMENT_FLAG_SOURCE | GST_ELEMENT_FLAG_SINK));
GST_OBJECT_FLAG_SET (src, GST_ELEMENT_FLAG_SOURCE);
@ -471,6 +450,21 @@ gst_wpe_src_init (GstWpeSrc * src)
src->audio_src_pads = g_hash_table_new (g_direct_hash, g_direct_equal);
src->flow_combiner = gst_flow_combiner_new ();
src->video_src = gst_element_factory_make ("wpevideosrc", NULL);
gst_bin_add (GST_BIN_CAST (src), src->video_src);
pad = gst_element_get_static_pad (GST_ELEMENT_CAST (src->video_src), "src");
ghost_pad = gst_ghost_pad_new_from_template ("video", pad,
gst_static_pad_template_get (&video_src_factory));
proxy_pad = gst_proxy_pad_get_internal (GST_PROXY_PAD (ghost_pad));
gst_pad_set_active (GST_PAD_CAST (proxy_pad), TRUE);
gst_element_add_pad (GST_ELEMENT_CAST (src), GST_PAD_CAST (ghost_pad));
gst_flow_combiner_add_pad (src->flow_combiner, GST_PAD_CAST (ghost_pad));
gst_pad_set_chain_function (GST_PAD_CAST (proxy_pad), gst_wpe_src_chain_buffer);
gst_object_unref (proxy_pad);
gst_object_unref (pad);
}
static gboolean

19
tests/examples/wpe/wpe.c
View file

@ -80,16 +80,8 @@ _wpe_pad_added (GstElement * src, GstPad * new_pad, GstElement * pipe)
gchar *name = gst_pad_get_name (new_pad);
gchar *bin_name;
if (g_str_has_prefix (name, "audio")) {
out =
gst_parse_bin_from_description
out = gst_parse_bin_from_description
("audioresample ! audioconvert ! autoaudiosink", TRUE, NULL);
} else {
out =
gst_parse_bin_from_description
("queue ! glcolorconvert ! gtkglsink enable-last-sample=0", TRUE, NULL);
}
bin_name = g_strdup_printf ("%s-bin", name);
g_free (name);
@ -130,19 +122,22 @@ main (int argc, char *argv[])
gst_init (&argc, &argv);
loop = g_main_loop_new (NULL, FALSE);
pipe1 = gst_pipeline_new (NULL);
pipe1 =
gst_parse_launch
("wpesrc name=wpesrc ! queue ! glcolorconvert ! gtkglsink enable-last-sample=0",
NULL);
bus1 = gst_pipeline_get_bus (GST_PIPELINE (pipe1));
gst_bus_add_watch (bus1, (GstBusFunc) _bus_watch, pipe1);
src = gst_element_factory_make ("wpesrc", NULL);
src = gst_bin_get_by_name (GST_BIN (pipe1), "wpesrc");
gst_bin_add (GST_BIN_CAST (pipe1), src);
gst_element_set_state (GST_ELEMENT (pipe1), GST_STATE_READY);
g_signal_connect (src, "pad-added", G_CALLBACK (_wpe_pad_added), pipe1);
g_signal_connect (src, "pad-removed", G_CALLBACK (_wpe_pad_removed), pipe1);
g_object_set (src, "location", argv[1], NULL);
gst_clear_object (&src);
g_print ("Starting pipeline\n");
gst_element_set_state (GST_ELEMENT (pipe1), GST_STATE_PLAYING);