--- /dev/null
+/*****************************************************************************
+ * 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 );
+}
/*****************************************************************************
- * 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
* $Id$
#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
/*****************************************************************************
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:
}
}
#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