From c1c082b44c4c97e0f4dc4909161fa8a472daa2e6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= <totte67@users.sourceforge.net>
Date: Sat, 9 Apr 2005 11:47:27 +0000
Subject: Experimental bob deinterlacing support for the xxmc module. Updated
 xxmc readme.

CVS patchset: 7451
CVS date: 2005/04/09 11:47:27
---
 ChangeLog                      |  1 +
 doc/README_xxmc.html           | 61 ++++++++++++++++++++++++++++++++++--------
 src/video_out/video_out_xxmc.c | 44 +++++++++++++++++++++++++++---
 src/video_out/xxmc.h           |  4 ++-
 4 files changed, 94 insertions(+), 16 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 656c6eee2..81ab2087b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,5 @@
 xine-lib (1.1)
+  * Experimental bob deinterlacing support in the xxmc module
 
 xine-lib (1.0.1)
   * Big XvMC quality / correctness / cpu-usage fix. [bug #1114517] 
diff --git a/doc/README_xxmc.html b/doc/README_xxmc.html
index 531b314ef..b1404f7d0 100644
--- a/doc/README_xxmc.html
+++ b/doc/README_xxmc.html
@@ -13,16 +13,27 @@
 and installing Xine's xxmc plugin.</a>
     <ol>
       <li><a href="#mozTocId69222">Background</a></li>
-      <li><a href="#mozTocId160476">Needed drivers and libs</a></li>
-      <li><a href="#mozTocId849061">Configuring and installing</a></li>
+      <li><a href="#mozTocId160476">Needed drivers and
+libs</a></li>
+      <li><a href="#mozTocId849061">Configuring and
+installing</a></li>
       <li><a href="#mozTocId197304">Running the plugin</a>
         <ol>
-          <li><a href="#mozTocId437541">General</a></li>
-          <li><a href="#mozTocId374228">Caveats</a></li>
+          <li><a href="#mozTocId437541">General
+            </a></li>
+          <li><a href="#mozTocId374228">Caveats
+            </a></li>
           <li><a href="#mozTocId6059">Optimizing</a></li>
           <li><a href="#mozTocId769361">Deinterlacing</a></li>
         </ol>
       </li>
+      <li><a href="#mozTocId974751">Chips supporting XvMC acceleration
+using the xxmc module.</a>
+        <ol>
+          <li><a href="#mozTocId803345">VIA Unichrome / Pro</a></li>
+          <li><a href="#mozTocId951553">Nvidia</a></li>
+        </ol>
+      </li>
       <li><a href="#mozTocId615875">FAQ</a></li>
     </ol>
   </li>
@@ -31,7 +42,8 @@ and installing Xine's xxmc plugin.</a>
 The xine xxmc plugin supports playback with <br>
 <ul>
   <li>Standard XvMC, as supported by many Nvidia chips.</li>
-  <li>VLD XvMC, as supported by the VIA CLE266 chip, up to 1024x1024.<br>
+  <li>VLD XvMC, as supported by the VIA Unichrome / Pro chips, up to
+1024x1024.<br>
   </li>
   <li>Standard Xv. The xxmc plugin will fall back to Xv if any of the
 above fails.</li>
@@ -62,7 +74,8 @@ or <span style="font-family: monospace;">/usr/X11R6/lib/X11/XvMCConfig</span>
 and try to load the hardware-specific library mentioned in that file.
 If you downloaded the XvMC wrapper from the unichrome site, the default
 XvMCConfig will make the XvMC wrapper try to load the Nvidia XvMC
-driver. If you want to use it with the VIA CLE266 chip, you will have
+driver. If you want to use it with the VIA Unichrome /Pro chips, you
+will have
 to edit the XvMCConfig file to contain the single word<br>
 <br>
 <span style="font-family: monospace;">libviaXvMC.so.1<br>
@@ -110,7 +123,8 @@ back to plain Xv for these streams. Hopefully this will be fixed in the
 not too distant future.<br>
 <br>
 <h3><a name="mozTocId6059" class="mozTocH3"></a>Optimizing</h3>
-If you are running VLD XvMC on the CLE266 there are some options that
+If you are running VLD XvMC on the VIA Unichrome / Pros there are some
+options that
 may affect performance:<br>
 <br>
 <span style="font-family: monospace;">video.device.unichrome_cpu_save:1</span><br>
@@ -146,10 +160,35 @@ run a hardware accelerated stream, Interlacing will be toggled by
 pressing "i". If the xxmc plugin has fallen back to Xv and software
 decoding, post plugins will take care of deinterlacing. <br>
 <br>
-BOB deinterlacing for XvMC accelerated streams will be implemented in
-the near future. That means alternating between the top- and bottom
-fields of the frame at twice the original frame-rate.<br>
-<br>
+BOB deinterlacing (alternating between top and bottom field at double
+the frame-rate) for XvMC accelerated streams is available as an
+experimental feature. It is activated using the config option<br>
+<br>
+<span style="font-family: monospace;">video.device.xvmc_bob_deinterlacing:1<br>
+<br>
+</span>If this option is enabled, The xxmc plugin will use bob as
+deinterlacing method when deinterlace is toggled pressing "i". To get
+the best results from this method, the screen update frequency should
+be a multiple of double the frame rate. For example, if the frame-rate
+is 25Hz, Your screen update frequency should be 50Hz or 100Hz. I have
+been able to get reasonable results using a 75Hz update frequency,
+however.<br>
+<h2><a class="mozTocH2" name="mozTocId974751"></a>Chips supporting XvMC
+acceleration using the xxmc module.</h2>
+<h3><a class="mozTocH3" name="mozTocId803345"></a>VIA Unichrome / Pro</h3>
+<ul>
+  <li>CLE266: up to 1024x1024.</li>
+  <li>K8M/N800: up to 1024x1024. Use Unichrome X drivers &gt;= r31.</li>
+  <li>CN400: HDTV capable. Driver support is under development.</li>
+  <li>PM8X0: HDTV capable. Driver support is under development.<br>
+  </li>
+</ul>
+<h3><a class="mozTocH3" name="mozTocId951553"></a>Nvidia</h3>
+<ul>
+  <li>Quadro FX 1000 (IDCT / Mocomp)</li>
+  <li>Please help me fill in here.<br>
+  </li>
+</ul>
 <h2><a name="mozTocId615875" class="mozTocH2"></a>FAQ</h2>
 Q: The xxmc plugin is not enabled when I configure xine-lib<br>
 A: Check that you have installed the XvMC wrapper, and that you've run
diff --git a/src/video_out/video_out_xxmc.c b/src/video_out/video_out_xxmc.c
index b6cf74d10..2607d7b2a 100644
--- a/src/video_out/video_out_xxmc.c
+++ b/src/video_out/video_out_xxmc.c
@@ -18,7 +18,7 @@
  * 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_xxmc.c,v 1.12 2005/02/22 18:31:58 totte67 Exp $
+ * $Id: video_out_xxmc.c,v 1.13 2005/04/09 11:47:43 totte67 Exp $
  *
  * video_out_xxmc.c, X11 decoding accelerated video extension interface for xine
  *
@@ -39,6 +39,7 @@
 
 
 #include "xxmc.h"
+#include <unistd.h>
 
 static int gX11Fail;
 static void xxmc_frame_updates(xxmc_driver_t *driver, xxmc_frame_t *frame);
@@ -1458,6 +1459,7 @@ static void xxmc_display_frame (vo_driver_t *this_gen, vo_frame_t *frame_gen)
   xxmc_driver_t  *this  = (xxmc_driver_t *) this_gen;
   xxmc_frame_t   *frame = (xxmc_frame_t *) frame_gen;
   xine_xxmc_t *xxmc = &frame->xxmc_data;
+  int first_field;
 
   /*
    * queue frames (deinterlacing)
@@ -1493,6 +1495,10 @@ static void xxmc_display_frame (vo_driver_t *this_gen, vo_frame_t *frame_gen)
    * ask for offset and output size
    */
 
+  first_field = (frame->vo_frame.top_field_first) ? XVMC_TOP_FIELD : XVMC_BOTTOM_FIELD;
+  first_field = (this->bob) ? first_field : XVMC_TOP_FIELD;
+  this->cur_field = (this->deinterlace_enabled) ? first_field : XVMC_FRAME_PICTURE;
+
   xxmc_redraw_needed (this_gen);
   if (frame->format == XINE_IMGFMT_XXMC) {
     XVMCLOCKDISPLAY( this->display );
@@ -1502,9 +1508,24 @@ static void xxmc_display_frame (vo_driver_t *this_gen, vo_frame_t *frame_gen)
 		    this->sc.displayed_width, this->sc.displayed_height,
 		    this->sc.output_xoffset, this->sc.output_yoffset,
 		    this->sc.output_width, this->sc.output_height, 
-		    ((this->deinterlace_enabled) ? 
-		     XVMC_TOP_FIELD : XVMC_FRAME_PICTURE));
+		    this->cur_field);
     XVMCUNLOCKDISPLAY( this->display );
+    if (this->deinterlace_enabled && this->bob) {
+      unsigned 
+	ms_per_field = 500 * frame->vo_frame.duration / 90000 - 2;
+      
+      usleep(ms_per_field*1000);
+      this->cur_field = (frame->vo_frame.top_field_first) ? XVMC_BOTTOM_FIELD : XVMC_TOP_FIELD;
+
+      XVMCLOCKDISPLAY( this->display );
+      XvMCPutSurface( this->display, frame->xvmc_surf , this->drawable,
+		      this->sc.displayed_xoffset, this->sc.displayed_yoffset,
+		      this->sc.displayed_width, this->sc.displayed_height,
+		      this->sc.output_xoffset, this->sc.output_yoffset,
+		      this->sc.output_width, this->sc.output_height, 
+		      this->cur_field);
+      XVMCUNLOCKDISPLAY( this->display );
+    }      
   } else {
     XLockDisplay (this->display);
     if (this->use_shm) {
@@ -1699,7 +1720,7 @@ static int xxmc_gui_data_exchange (vo_driver_t *this_gen,
 			this->sc.displayed_width, this->sc.displayed_height,
 			this->sc.output_xoffset, this->sc.output_yoffset,
 			this->sc.output_width, this->sc.output_height, 
-			((this->deinterlace_enabled) ? XVMC_TOP_FIELD : XVMC_FRAME_PICTURE)); 
+			this->cur_field); 
 	XVMCUNLOCKDISPLAY( this->display );
       } else {
 	XLockDisplay (this->display);
@@ -1950,6 +1971,12 @@ static void xxmc_update_nvidia_fix(void *this_gen, xine_cfg_entry_t *entry) {
   this->reverse_nvidia_palette = entry->num_value;
 }
 
+static void xxmc_update_bob(void *this_gen, xine_cfg_entry_t *entry) {
+  xxmc_driver_t *this = (xxmc_driver_t *) this_gen;
+
+  this->bob = entry->num_value;
+}
+
 
 static void checkXvMCCap( xxmc_driver_t *this, XvPortID xv_port) 
 {
@@ -2412,7 +2439,16 @@ static vo_driver_t *open_plugin (video_driver_class_t *class_gen, const void *vi
 			   _("There's a bug in NVIDIA's XvMC lib that makes red OSD colors\n"
 			     "look blue and vice versa. This option provides a workaround.\n"),
 			   10, xxmc_update_nvidia_fix, this);
+  this->bob =
+    config->register_bool (config, "video.device.xvmc_bob_deinterlacing", 0,
+			   _("Use bob as accelerated deinterlace method."),
+			   _("When interlacing is enabled for hardware accelerated frames,\n"
+			     "Alternate between top and bottom field at double the frame rate.\n"),
+			   10, xxmc_update_bob, this);
+
   this->deinterlace_enabled = 0;
+  this->cur_field = XVMC_FRAME_PICTURE;
+
 #ifdef HAVE_VLDXVMC
   printf("video_out_xxmc: Unichrome CPU saving is %s.\n",
 	 (this->cpu_save_enabled) ? "on":"off"); 
diff --git a/src/video_out/xxmc.h b/src/video_out/xxmc.h
index 645fd9269..27103dea7 100644
--- a/src/video_out/xxmc.h
+++ b/src/video_out/xxmc.h
@@ -18,7 +18,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
  *
- * $Id: xxmc.h,v 1.6 2004/11/24 16:11:10 mroi Exp $
+ * $Id: xxmc.h,v 1.7 2005/04/09 11:47:43 totte67 Exp $
  *
  * video_out_xxmc.c, X11 decoding accelerated video extension interface for xine
  *
@@ -204,6 +204,8 @@ struct xxmc_driver_s {
   uint32_t           capabilities;
   xxmc_frame_t       *recent_frames[VO_NUM_RECENT_FRAMES];
   xxmc_frame_t       *cur_frame;
+  int                cur_field;
+  int                bob;
   x11osd             *xoverlay;
   int                xv_xoverlay_type;
   int                xoverlay_type;
-- 
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