From ea02fab31dd66ad0d5d321c65046f0ef9c352848 Mon Sep 17 00:00:00 2001
From: Ewald Snel <esnel@users.sourceforge.net>
Date: Wed, 5 Mar 2003 22:12:40 +0000
Subject: Add option to fix alignment problem with some (buggy) XVideo drivers
 Undo previous change to libreal (bug is general video decoding problem)

CVS patchset: 4342
CVS date: 2003/03/05 22:12:40
---
 src/libreal/xine_decoder.c   |  4 ++--
 src/video_out/video_out_xv.c | 21 ++++++++++++++++++++-
 2 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/src/libreal/xine_decoder.c b/src/libreal/xine_decoder.c
index bf4411089..c98906318 100644
--- a/src/libreal/xine_decoder.c
+++ b/src/libreal/xine_decoder.c
@@ -17,7 +17,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
  *
- * $Id: xine_decoder.c,v 1.29 2003/03/05 20:17:12 tmattern Exp $
+ * $Id: xine_decoder.c,v 1.30 2003/03/05 22:12:40 esnel Exp $
  *
  * thin layer to use real binary-only codecs in xine
  *
@@ -208,7 +208,7 @@ static int init_codec (realdec_decoder_t *this, buf_element_t *buf) {
   init_data.w = BE_16(&buf->content[12]);
   init_data.h = BE_16(&buf->content[14]);
   
-  this->width  = (init_data.w + 7) & (~7);
+  this->width  = (init_data.w + 1) & (~1);
   this->height = (init_data.h + 1) & (~1);
   
   this->stream->stream_info[XINE_STREAM_INFO_VIDEO_WIDTH]    = this->width;
diff --git a/src/video_out/video_out_xv.c b/src/video_out/video_out_xv.c
index b9f30a551..477e032c8 100644
--- a/src/video_out/video_out_xv.c
+++ b/src/video_out/video_out_xv.c
@@ -17,7 +17,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
  *
- * $Id: video_out_xv.c,v 1.159 2003/02/28 02:51:51 storri Exp $
+ * $Id: video_out_xv.c,v 1.160 2003/03/05 22:12:48 esnel Exp $
  *
  * video_out_xv.c, X11 video extension interface for xine
  *
@@ -118,6 +118,7 @@ struct xv_driver_s {
   int                expecting_event; /* completion event handling */
   int                completion_event;
   int                use_shm;
+  int                use_pitch_alignment;
   xv_property_t      props[VO_NUM_PROPERTIES];
   uint32_t           capabilities;
 
@@ -244,6 +245,10 @@ static XvImage *create_ximage (xv_driver_t *this, XShmSegmentInfo *shminfo,
   unsigned int  xv_format;
   XvImage      *image=NULL;
 
+  if (this->use_pitch_alignment) {
+    width = (width + 7) & ~0x7;
+  }
+
   switch (format) {
   case XINE_IMGFMT_YV12:
     xv_format = this->xv_format_yv12;
@@ -394,6 +399,10 @@ static void xv_update_frame_format (vo_driver_t *this_gen,
   xv_driver_t  *this = (xv_driver_t *) this_gen;
   xv_frame_t   *frame = (xv_frame_t *) frame_gen;
 
+  if (this->use_pitch_alignment) {
+    width = (width + 7) & ~0x7;
+  }
+
   if ((frame->width != width)
       || (frame->height != height)
       || (frame->format != format)) {
@@ -1118,6 +1127,12 @@ static void xv_update_XV_DOUBLE_BUFFER(void *this_gen, xine_cfg_entry_t *entry)
   printf("video_out_xv: double buffering mode = %d\n",xv_double_buffer);
 }
 
+static void xv_update_xv_pitch_alignment(void *this_gen, xine_cfg_entry_t *entry) {
+  xv_driver_t *this = (xv_driver_t *) this_gen;
+
+  this->use_pitch_alignment = entry->num_value;
+}
+
 
 static vo_driver_t *open_plugin (video_driver_class_t *class_gen, const void *visual_gen) {
 
@@ -1314,6 +1329,10 @@ static vo_driver_t *open_plugin (video_driver_class_t *class_gen, const void *vi
   else
     this->completion_event = -1;
 
+  this->use_pitch_alignment = config->register_bool (config, "video.xv_pitch_alignment", 0,
+						    _("workaround for some (buggy) XVideo drivers"),
+						    NULL, 10, xv_update_xv_pitch_alignment, this);
+
   this->deinterlace_method = config->register_enum (config, "video.deinterlace_method", 4,
 						    deinterlace_methods,
 						    _("Software deinterlace method (Key I toggles deinterlacer on/off)"),
-- 
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