Split i422->packed YUV and i422->planar YUV. Add i422->YUVA. This still needs some testing.

configure.ac

@@ -1262,7 +1262,7 @@ if test "${SYS}" != "mingwce"; then
   VLC_ADD_PLUGINS([access_fake access_filter_timeshift access_filter_record access_filter_dump])
   VLC_ADD_PLUGINS([gestures rc telnet hotkeys showintf marq podcast shout sap fake folder])
   VLC_ADD_PLUGINS([rss mosaic wall motiondetect clone crop erase bluescreen alphamask gaussianblur])
-  VLC_ADD_PLUGINS([i420_yuy2 i422_yuy2 i420_ymga])
+  VLC_ADD_PLUGINS([i420_yuy2 i422_yuy2 i420_ymga i422_i420])
   VLC_ADD_PLUGINS([aout_file linear_resampler bandlimited_resampler])
   VLC_ADD_PLUGINS([float32_mixer spdif_mixer simple_channel_mixer])
   VLC_ADD_PLUGINS([dolby_surround_decoder headphone_channel_mixer normvol equalizer param_eq])

modules/video_chroma/Modules.am

@@ -55,6 +55,10 @@ SOURCES_i422_yuy2_sse2 = \
 	i422_yuy2.h \
 	$(NULL)
 
+SOURCES_i422_i420 = \
+	i422_i420.c \
+	$(NULL)
+
 SOURCES_i420_ymga = \
 	i420_ymga.c \
 	$(NULL)

modules/video_chroma/i422_i420.c

+/*****************************************************************************
+ * i422_i420.c : Planar YUV 4:2:2 to Planar YUV 4:2:0 conversion module for vlc
+ *****************************************************************************
+ * Copyright (C) 2000, 2001 - 2007 the VideoLAN team
+ * $Id$
+ *
+ * Authors: Samuel Hocevar <sam@zoy.org>
+ *          Damien Fouilleul <damienf@videolan.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+
+#include <vlc/vlc.h>
+#include <vlc_vout.h>
+
+#define SRC_FOURCC  "I422,J422"
+#define DEST_FOURCC "I420,IYUV,J420,YV12,YUVA"
+
+/*****************************************************************************
+ * Local and extern prototypes.
+ *****************************************************************************/
+static int  Activate ( vlc_object_t * );
+
+static void I422_I420( vout_thread_t *, picture_t *, picture_t * );
+static void I422_YV12( vout_thread_t *, picture_t *, picture_t * );
+static void I422_YUVA( vout_thread_t *, picture_t *, picture_t * );
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+vlc_module_begin();
+    set_description( _("Conversions from " SRC_FOURCC " to " DEST_FOURCC) );
+    set_capability( "chroma", 60 );
+    set_callbacks( Activate, NULL );
+vlc_module_end();
+
+/*****************************************************************************
+ * Activate: allocate a chroma function
+ *****************************************************************************
+ * This function allocates and initializes a chroma function
+ *****************************************************************************/
+static int Activate( vlc_object_t *p_this )
+{
+    vout_thread_t *p_vout = (vout_thread_t *)p_this;
+
+    if( p_vout->render.i_width & 1 || p_vout->render.i_height & 1 )
+    {
+        return -1;
+    }
+
+    switch( p_vout->render.i_chroma )
+    {
+        case VLC_FOURCC('I','4','2','2'):
+        case VLC_FOURCC('J','4','2','2'):
+            switch( p_vout->output.i_chroma )
+            {
+                case VLC_FOURCC('I','4','2','0'):
+                case VLC_FOURCC('I','Y','U','V'):
+                case VLC_FOURCC('J','4','2','0'):
+                    p_vout->chroma.pf_convert = I422_I420;
+                    break;
+
+                case VLC_FOURCC('Y','V','1','2'):
+                    p_vout->chroma.pf_convert = I422_YV12;
+                    break;
+
+                case VLC_FOURCC('Y','U','V','A'):
+                    p_vout->chroma.pf_convert = I422_YUVA;
+                    break;
+
+                default:
+                    return -1;
+            }
+            break;
+
+        default:
+            return -1;
+    }
+    return 0;
+}
+
+/* Following functions are local */
+
+/*****************************************************************************
+ * I422_I420: planar YUV 4:2:2 to planar I420 4:2:0 Y:U:V
+ *****************************************************************************/
+static void I422_I420( vout_thread_t *p_vout, picture_t *p_source,
+                                              picture_t *p_dest )
+{
+    uint16_t i_dpy = p_dest->p[Y_PLANE].i_pitch;
+    uint16_t i_spy = p_source->p[Y_PLANE].i_pitch;
+    uint16_t i_dpuv = p_dest->p[U_PLANE].i_pitch;
+    uint16_t i_spuv = p_source->p[U_PLANE].i_pitch;
+    uint16_t i_width = p_vout->render.i_width;
+    uint16_t i_y = p_vout->render.i_height;
+    uint8_t *p_dy = p_dest->Y_PIXELS + (i_y-1)*i_dpy;
+    uint8_t *p_y = p_source->Y_PIXELS + (i_y-1)*i_spy;
+    uint8_t *p_du = p_dest->U_PIXELS + (i_y/2-1)*i_dpuv;
+    uint8_t *p_u = p_source->U_PIXELS + (i_y-1)*i_spuv;
+    uint8_t *p_dv = p_dest->V_PIXELS + (i_y/2-1)*i_dpuv;
+    uint8_t *p_v = p_source->V_PIXELS + (i_y-1)*i_spuv;
+    void *(*pf_memcpy)(void *, const void *, size_t) = p_vout->p_libvlc->pf_memcpy;
+    i_y /= 2;
+
+    for ( ; i_y--; )
+    {
+        pf_memcpy(p_dy, p_y, i_width); p_dy -= i_dpy; p_y -= i_spy;
+        pf_memcpy(p_dy, p_y, i_width); p_dy -= i_dpy; p_y -= i_spy;
+        pf_memcpy(p_du, p_u, i_width/2); p_du -= i_dpuv; p_u -= 2*i_spuv;
+        pf_memcpy(p_dv, p_v, i_width/2); p_dv -= i_dpuv; p_v -= 2*i_spuv;
+    }
+}
+
+/*****************************************************************************
+ * I422_YV12: planar YUV 4:2:2 to planar YV12 4:2:0 Y:V:U
+ *****************************************************************************/
+static void I422_YV12( vout_thread_t *p_vout, picture_t *p_source,
+                                              picture_t *p_dest )
+{
+    uint16_t i_dpy = p_dest->p[Y_PLANE].i_pitch;
+    uint16_t i_spy = p_source->p[Y_PLANE].i_pitch;
+    uint16_t i_dpuv = p_dest->p[U_PLANE].i_pitch;
+    uint16_t i_spuv = p_source->p[U_PLANE].i_pitch;
+    uint16_t i_width = p_vout->render.i_width;
+    uint16_t i_y = p_vout->render.i_height;
+    uint8_t *p_dy = p_dest->Y_PIXELS + (i_y-1)*i_dpy;
+    uint8_t *p_y = p_source->Y_PIXELS + (i_y-1)*i_spy;
+    uint8_t *p_du = p_dest->V_PIXELS + (i_y/2-1)*i_dpuv; /* U and V are swapped */
+    uint8_t *p_u = p_source->U_PIXELS + (i_y-1)*i_spuv;
+    uint8_t *p_dv = p_dest->U_PIXELS + (i_y/2-1)*i_dpuv; /* U and V are swapped */
+    uint8_t *p_v = p_source->V_PIXELS + (i_y-1)*i_spuv;
+    void *(*pf_memcpy)(void *, const void *, size_t) = p_vout->p_libvlc->pf_memcpy;
+    i_y /= 2;
+
+    for ( ; i_y--; )
+    {
+        pf_memcpy(p_dy, p_y, i_width); p_dy -= i_dpy; p_y -= i_spy;
+        pf_memcpy(p_dy, p_y, i_width); p_dy -= i_dpy; p_y -= i_spy;
+        pf_memcpy(p_du, p_u, i_width/2); p_du -= i_dpuv; p_u -= 2*i_spuv;
+        pf_memcpy(p_dv, p_v, i_width/2); p_dv -= i_dpuv; p_v -= 2*i_spuv;
+    }
+}
+
+/*****************************************************************************
+ * I422_YUVA: planar YUV 4:2:2 to planar YUVA 4:2:0:4 Y:U:V:A
+ *****************************************************************************/
+static void I422_YUVA( vout_thread_t *p_vout, picture_t *p_source,
+                                              picture_t *p_dest )
+{
+    I422_I420( p_vout, p_source, p_dest );
+    p_vout->p_libvlc->pf_memset( p_dest->p[A_PLANE].p_pixels, 0xff,
+                                 p_dest->p[A_PLANE].i_lines
+                                 * p_dest->p[A_PLANE].i_pitch );
+}

modules/video_chroma/i422_yuy2.c

 /*****************************************************************************
- * i422_yuy2.c : YUV to YUV conversion module for vlc
+ * i422_yuy2.c : Planar YUV 4:2:2 to Packed YUV conversion module for vlc
  *****************************************************************************
  * Copyright (C) 2000, 2001 the VideoLAN team
  * $Id$
@@ -51,7 +51,6 @@ static void I422_cyuv           ( vout_thread_t *, picture_t *, picture_t * );
 #if defined (MODULE_NAME_IS_i422_yuy2)
 static void I422_Y211           ( vout_thread_t *, picture_t *, picture_t * );
 static void I422_Y211           ( vout_thread_t *, picture_t *, picture_t * );
-static void I422_YV12           ( vout_thread_t *, picture_t *, picture_t * );
 #endif
 
 /*****************************************************************************
@@ -119,10 +118,6 @@ static int Activate( vlc_object_t *p_this )
                 case VLC_FOURCC('Y','2','1','1'):
                     p_vout->chroma.pf_convert = I422_Y211;
                     break;
-
-                case VLC_FOURCC('Y','V','1','2'):
-                    p_vout->chroma.pf_convert = I422_YV12;
-                    break;
 #endif
 
                 default:
@@ -548,36 +543,3 @@ static void I422_Y211( vout_thread_t *p_vout, picture_t *p_source,
     }
 }
 #endif
-
-
-/*****************************************************************************
- * I422_YV12: planar YUV 4:2:2 to planar YV12
- *****************************************************************************/
-#if defined (MODULE_NAME_IS_i422_yuy2)
-static void I422_YV12( vout_thread_t *p_vout, picture_t *p_source,
-                                              picture_t *p_dest )
-{
-    uint16_t i_dpy = p_dest->p[Y_PLANE].i_pitch;
-    uint16_t i_spy = p_source->p[Y_PLANE].i_pitch;
-    uint16_t i_dpuv = p_dest->p[U_PLANE].i_pitch;
-    uint16_t i_spuv = p_source->p[U_PLANE].i_pitch;
-    uint16_t i_width = p_vout->render.i_width;
-    uint16_t i_y = p_vout->render.i_height;
-    uint8_t *p_dy = p_dest->Y_PIXELS + (i_y-1)*i_dpy;
-    uint8_t *p_y = p_source->Y_PIXELS + (i_y-1)*i_spy;
-    uint8_t *p_du = p_dest->U_PIXELS + (i_y/2-1)*i_dpuv;
-    uint8_t *p_u = p_source->U_PIXELS + (i_y-1)*i_spuv;
-    uint8_t *p_dv = p_dest->V_PIXELS + (i_y/2-1)*i_dpuv;
-    uint8_t *p_v = p_source->V_PIXELS + (i_y-1)*i_spuv;
-    i_y /= 2;
-
-    for ( ; i_y--; )
-    {
-        memcpy(p_dy, p_y, i_width); p_dy -= i_dpy; p_y -= i_spy;
-        memcpy(p_dy, p_y, i_width); p_dy -= i_dpy; p_y -= i_spy;
-        memcpy(p_du, p_u, i_width/2); p_du -= i_dpuv; p_u -= 2*i_spuv;
-        memcpy(p_dv, p_v, i_width/2); p_dv -= i_dpuv; p_v -= 2*i_spuv;
-    }
-
-}
-#endif