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examples/sdlshare: Move from a fakesink to an appsink

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This commit is contained in:
Sebastian Dröge 2019-03-12 21:31:24 +01:00
parent 6f14785c3e
commit b0bd448d37
1 changed files with 28 additions and 14 deletions
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42
tests/examples/gl/sdl/sdlshare.c
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@ -159,25 +159,37 @@ update_sdl_scene (gpointer data)
/* push buffer so it can be unref later */
g_async_queue_push (queue_output_buf, buf);
return FALSE;
return G_SOURCE_REMOVE;
}
/* fakesink handoff callback */
static void
on_gst_buffer (GstElement * fakesink, GstBuffer * buf, GstPad * pad,
gpointer data)
/* appsink new-sample callback */
static GstFlowReturn
on_new_sample (GstElement * appsink, gpointer data)
{
GstSample *sample = NULL;
GstBuffer *buf;
g_signal_emit_by_name (appsink, "pull-sample", &sample, NULL);
if (!sample)
return GST_FLOW_FLUSHING;
buf = gst_sample_get_buffer (sample);
/* ref then push buffer to use it in sdl */
gst_buffer_ref (buf);
gst_sample_unref (sample);
g_async_queue_push (queue_input_buf, buf);
if (g_async_queue_length (queue_input_buf) > 3)
g_idle_add (update_sdl_scene, (gpointer) fakesink);
g_idle_add (update_sdl_scene, (gpointer) appsink);
/* pop then unref buffer we have finished to use in sdl */
if (g_async_queue_length (queue_output_buf) > 3) {
GstBuffer *buf_old = (GstBuffer *) g_async_queue_pop (queue_output_buf);
gst_buffer_unref (buf_old);
}
return GST_FLOW_OK;
}
/* gst bus signal watch callback */
@ -265,7 +277,7 @@ main (int argc, char **argv)
GstPipeline *pipeline = NULL;
GstBus *bus = NULL;
GstElement *fakesink = NULL;
GstElement *appsink = NULL;
GstState state;
const gchar *platform;
@ -320,8 +332,10 @@ main (int argc, char **argv)
pipeline =
GST_PIPELINE (gst_parse_launch
("videotestsrc ! video/x-raw, width=320, height=240, framerate=(fraction)30/1 ! "
"glupload ! gleffects effect=5 ! fakesink sync=1", NULL));
("videotestsrc ! glupload ! gleffects effect=5 ! "
"appsink name=sink sync=true "
"caps=video/x-raw(memory:GLMemory),format=RGBA,width=320,height=240,framerate=(fraction)30/1,texture-target=2D",
NULL));
bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
gst_bus_add_signal_watch (bus);
@ -347,15 +361,15 @@ main (int argc, char **argv)
#else
glXMakeCurrent (sdl_display, sdl_win, sdl_gl_context);
#endif
queue_input_buf = g_async_queue_new ();
queue_output_buf = g_async_queue_new ();
/* append a gst-gl texture to this queue when you do not need it no more */
fakesink = gst_bin_get_by_name (GST_BIN (pipeline), "fakesink0");
g_object_set (G_OBJECT (fakesink), "signal-handoffs", TRUE, NULL);
g_signal_connect (fakesink, "handoff", G_CALLBACK (on_gst_buffer), NULL);
gst_object_unref (fakesink);
appsink = gst_bin_get_by_name (GST_BIN (pipeline), "sink");
g_object_set (appsink, "emit-signals", TRUE, NULL);
g_signal_connect (appsink, "new-sample", G_CALLBACK (on_new_sample), NULL);
gst_object_unref (appsink);
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);