Doxygen comment/explanation for ff_xvmc_init_block().

Originally committed as revision 17301 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavcodec/mpegvideo_xvmc.c b/libavcodec/mpegvideo_xvmc.c
index af7497e56335d5032783ebbd0f923895922120d0..4b1801e80288b06d2450db6b9470bf9f435546de 100644 (file)
--- a/libavcodec/mpegvideo_xvmc.c
+++ b/libavcodec/mpegvideo_xvmc.c
@@ -31,7 +31,10 @@
 #include "xvmc.h"
 #include "xvmc_internal.h"
 
-//set s->block
+/**
+ * Initializes the block field of the MpegEncContext pointer passed as
+ * parameter after making sure that the data is not corrupted.
+ */
 void ff_xvmc_init_block(MpegEncContext *s)
 {
     struct xvmc_render_state *render = (struct xvmc_render_state*)s->current_picture.data[2];