waylandsink: Rollback video info changes when copying

We change the video info base on the received buffer. We need to
rollback these changes whenever we want to copy into our internal
pool of buffers.

https://bugzilla.gnome.org/show_bug.cgi?id=790057

diff --git a/ext/wayland/gstwaylandsink.c b/ext/wayland/gstwaylandsink.c
index e02b0cc..dd40bd1 100644 (file)
--- a/ext/wayland/gstwaylandsink.c
+++ b/ext/wayland/gstwaylandsink.c
@@ -631,6 +631,7 @@ gst_wayland_sink_show_frame (GstVideoSink * vsink, GstBuffer * buffer)
   GstWlBuffer *wlbuffer;
   GstVideoMeta *vmeta;
   GstVideoFormat format;
+  GstVideoInfo old_vinfo;
   GstMemory *mem;
   struct wl_buffer *wbuf = NULL;
 
@@ -676,6 +677,7 @@ gst_wayland_sink_show_frame (GstVideoSink * vsink, GstBuffer * buffer)
   /* update video info from video meta */
   mem = gst_buffer_peek_memory (buffer, 0);
 
+  old_vinfo = sink->video_info;
   vmeta = gst_buffer_get_video_meta (buffer);
   if (vmeta) {
     gint i;
@@ -713,6 +715,9 @@ gst_wayland_sink_show_frame (GstVideoSink * vsink, GstBuffer * buffer)
       GstVideoFrame src, dst;
       GstVideoInfo src_info = sink->video_info;
 
+      /* rollback video info changes */
+      sink->video_info = old_vinfo;
+
       /* we don't know how to create a wl_buffer directly from the provided
        * memory, so we have to copy the data to shm memory that we know how
        * to handle... */