/pidgin/main: ae26e3eace57: media: add videoscale before video sink

[Jakub Adam]

Changeset: ae26e3eace575b00067e84c3c4936e8df5ea00b1
Author:	 Jakub Adam <jakub.adam at ktknet.cz>
Date:	 2016-04-21 09:40 +0200
Branch:	 release-2.x.y
URL: https://hg.pidgin.im/pidgin/main/rev/ae26e3eace57

Description:

media: add videoscale before video sink

Fixes issue with ximagesink displaying only a corner cut-out of larger
webcam video.

In addition, a patch for ximagesink is needed, ETA GStreamer 1.9.0:

https://cgit.freedesktop.org/gstreamer/gst-plugins-base/commit/?id=59d7f9c62ee95dfbb5b450476f73a717e03b7b8c

Backport of Pidgin 3 commit dfadb1bef243.

diffstat:

 libpurple/mediamanager.c |  9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diffs (42 lines):

diff --git a/libpurple/mediamanager.c b/libpurple/mediamanager.c
--- a/libpurple/mediamanager.c
+++ b/libpurple/mediamanager.c
@@ -1449,7 +1449,7 @@ purple_media_manager_create_output_windo
 				(participant == ow->participant)) &&
 				!strcmp(session_id, ow->session_id)) {
 			GstBus *bus;
-			GstElement *queue, *convert;
+			GstElement *queue, *convert, *scale;
 			GstElement *tee = purple_media_get_tee(media,
 					session_id, participant);
 
@@ -1462,6 +1462,7 @@ purple_media_manager_create_output_windo
 #else
 			convert = gst_element_factory_make("ffmpegcolorspace", NULL);
 #endif
+			scale = gst_element_factory_make("videoscale", NULL);
 			ow->sink = purple_media_manager_get_element(
 					manager, PURPLE_MEDIA_RECV_VIDEO,
 					ow->media, ow->session_id,
@@ -1482,7 +1483,7 @@ purple_media_manager_create_output_windo
 			}
 
 			gst_bin_add_many(GST_BIN(GST_ELEMENT_PARENT(tee)),
-					queue, convert, ow->sink, NULL);
+					queue, convert, scale, ow->sink, NULL);
 
 			bus = gst_pipeline_get_bus(GST_PIPELINE(
 					manager->priv->pipeline));
@@ -1491,9 +1492,11 @@ purple_media_manager_create_output_windo
 			gst_object_unref(bus);
 
 			gst_element_set_state(ow->sink, GST_STATE_PLAYING);
+			gst_element_set_state(scale, GST_STATE_PLAYING);
 			gst_element_set_state(convert, GST_STATE_PLAYING);
 			gst_element_set_state(queue, GST_STATE_PLAYING);
-			gst_element_link(convert, ow->sink);
+			gst_element_link(scale, ow->sink);
+			gst_element_link(convert, scale);
 			gst_element_link(queue, convert);
 			gst_element_link(tee, queue);
 		}