* add post processing modules.( As defined in MPEG4 ISO) There are C,

mmx, mmxext version, but only mmxext is really usable (other need a
 _lot_ of CPU power).

There are new options for ffmpeg plugins :
 --ffmpeg-pp to choose postprocessing module( c, mmx, mmext or mmx2 )
 --ffmpeg-pp-q to choose quality( 0..6 )
 --ffmpeg-db-?? ( where first ? is for y or c, and the other ? for v or h )
to force deblocking on luminance(y)/chrominance(c) horizontally or
vertically.
 --ffmpeg-dr-? ( where ? is y or c ) to force dering on ...

modules/codec/ffmpeg/Makefile

 ffmpeg_SOURCES = ffmpeg.c
+
+
+

modules/codec/ffmpeg/ffmpeg.h

@@ -2,7 +2,7 @@
  * ffmpeg_vdec.h: video decoder using ffmpeg library
  *****************************************************************************
  * Copyright (C) 2001 VideoLAN
- * $Id: ffmpeg.h,v 1.1 2002/08/04 17:23:42 sam Exp $
+ * $Id: ffmpeg.h,v 1.2 2002/08/04 22:13:05 fenrir Exp $
  *
  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
  * 
@@ -41,6 +41,38 @@ typedef struct bitmapinfoheader_s
 
 } bitmapinfoheader_t;
 
+typedef struct videodec_thread_s
+{
+    decoder_fifo_t      *p_fifo;    
+
+    bitmapinfoheader_t  format;
+
+    AVCodecContext      context, *p_context;
+    AVCodec             *p_codec;
+    vout_thread_t       *p_vout; 
+
+    /* for post processing */
+    u32                 i_pp_mode; /* valid only with I420 and YV12 */
+    postprocessing_t    *p_pp;
+
+    char *psz_namecodec;
+
+    /* for frame skipping algo */
+    int b_hurry_up;
+    int i_frame_error;
+    int i_frame_skip;
+    int i_frame_late;  /* how may frame decoded are in late */
+
+     /* private */
+    mtime_t i_pts;
+    int     i_framesize;
+    u8      *p_framedata;
+  
+    u8      *p_buffer;     /* buffer for gather pes */
+    int     i_buffer_size; /* size of allocated p_framedata */
+            
+} videodec_thread_t;
+
 /* MPEG4 video */
 #define FOURCC_DIVX         VLC_FOURCC('D','I','V','X')
 #define FOURCC_divx         VLC_FOURCC('d','i','v','x')
@@ -171,7 +203,7 @@ static int ffmpeg_GetFfmpegCodec( vlc_fourcc_t i_fourcc,
             i_codec = CODEC_ID_MPEG4;
             psz_name = "MPEG-4";
             break;
-
+/* FIXME FOURCC_H263P exist but what fourcc ? */
         case FOURCC_H263:
         case FOURCC_h263:
         case FOURCC_U263:
@@ -196,25 +228,45 @@ static int ffmpeg_GetFfmpegCodec( vlc_fourcc_t i_fourcc,
     return VLC_FALSE;
 }
 
-
-typedef struct videodec_thread_s
+/* FIXME FIXME some of them are wrong */
+static int i_ffmpeg_PixFmtToChroma[] =
 {
-    decoder_fifo_t      *p_fifo;    
-
-    bitmapinfoheader_t  format;
+    /* PIX_FMT_ANY = -1, PIX_FMT_YUV420P, 
+       PIX_FMT_YUV422,   PIX_FMT_RGB24,   
+       PIX_FMT_BGR24,    PIX_FMT_YUV422P, 
+       PIX_FMT_YUV444P,  PIX_FMT_YUV410P 
+     */
+    0,                           VLC_FOURCC('I','4','2','0'),
+    VLC_FOURCC('I','4','2','0'), VLC_FOURCC('R','V','2','4'),
+    0,                           VLC_FOURCC('Y','4','2','2'),
+    VLC_FOURCC('I','4','4','4'), 0
+};
 
-    AVCodecContext      context, *p_context;
-    AVCodec             *p_codec;
-    vout_thread_t       *p_vout; 
+static inline u32 ffmpeg_PixFmtToChroma( int i_ffmpegchroma )
+{
+    if( ++i_ffmpegchroma > 7 )
+    {
+        return( 0 );
+    }
+    else
+    {
+        return( i_ffmpeg_PixFmtToChroma[i_ffmpegchroma] );
+    }
+}
 
-    char *psz_namecodec;
-    /* private */
-    mtime_t i_pts;
-    int     i_framesize;
-    byte_t  *p_framedata;
+static inline int ffmpeg_FfAspect( int i_width, int i_height, int i_ffaspect )
+{
+    switch( i_ffaspect )
+    {
+        case( FF_ASPECT_4_3_625 ):
+        case( FF_ASPECT_4_3_525 ):
+            return( VOUT_ASPECT_FACTOR * 4 / 3);
+        case( FF_ASPECT_16_9_625 ):
+        case( FF_ASPECT_16_9_525 ):
+            return( VOUT_ASPECT_FACTOR * 16 / 9 );
+        case( FF_ASPECT_SQUARE ):
+        default:
+            return( VOUT_ASPECT_FACTOR * i_width / i_height );
+    }
+}
 
-    int i_frame_error;
-    int i_frame_skip;
-    int i_frame_late;  /* how may frame decoded are in late */
-    
-} videodec_thread_t;

modules/codec/ffmpeg/postprocessing/Makefile

+postprocessing_c_SOURCES = postprocessing.c postprocessing_c.c
+postprocessing_mmx_SOURCES = postprocessing.c postprocessing_mmx.c
+postprocessing_mmxext_SOURCES = postprocessing.c postprocessing_mmxext.c
+
+
+

modules/codec/ffmpeg/postprocessing/postprocessing.c

+/*****************************************************************************
+ * postprocessing.c
+ *****************************************************************************
+ * Copyright (C) 1999-2001 VideoLAN
+ * $Id: postprocessing.c,v 1.1 2002/08/04 22:13:06 fenrir Exp $
+ *
+ * Authors: Laurent Aimar <fenrir@via.ecp.fr>
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+#include <stdlib.h>
+#include <string.h>
+
+#include <vlc/vlc.h>
+#include <vlc/vout.h>
+
+#include "postprocessing.h"
+#include "postprocessing_common.h"
+
+
+static int Open ( vlc_object_t *p_this );
+
+static u32 pp_getmode( int i_quality, int b_autolevel );
+static int pp_postprocess( picture_t *,
+                           QT_STORE_T *, unsigned int,
+                           unsigned int i_mode );
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+vlc_module_begin();
+#ifdef MODULE_NAME_IS_postprocessing_c
+    set_description( _("C Post Processing module") );
+    set_capability( "postprocessing", 50 );
+    add_shortcut( "c" );
+#elif defined( MODULE_NAME_IS_postprocessing_mmx )
+    set_description( _("MMX Post Processing module") );
+    set_capability( "postprocessing", 100 );
+    add_requirement( MMX );
+    add_shortcut( "mmx" );
+#elif defined( MODULE_NAME_IS_postprocessing_mmxext )
+    set_description( _("MMXEXT Post Processing module") );
+    set_capability( "postprocessing", 150 );
+    add_requirement( MMXEXT );
+    add_shortcut( "mmxext" );
+    add_shortcut( "mmx2" );
+#endif
+    set_callbacks( Open, NULL );
+vlc_module_end();
+
+/*****************************************************************************
+ * Module initializer
+ *****************************************************************************/
+static int Open ( vlc_object_t *p_this )
+{
+    postprocessing_t *p_pp = (postprocessing_t *)p_this;
+
+    p_pp->pf_getmode = pp_getmode;
+    p_pp->pf_postprocess = pp_postprocess;
+    
+    return VLC_SUCCESS;
+}
+
+
+static u32 pp_getmode( int i_quality, int b_autolevel )
+{
+    u32 i_mode;
+    i_quality = i_quality < 0 ? 0 : i_quality;
+    i_quality = i_quality > 6 ? 6 : i_quality;
+
+    switch( i_quality )
+    {
+        case( 0 ):
+            i_mode = 0;
+            break;
+        case( 1 ):
+            i_mode = PP_DEBLOCK_Y_H;
+            break;
+        case( 2 ):
+            i_mode = PP_DEBLOCK_Y_H|PP_DEBLOCK_Y_V;
+            break;
+        case( 3 ):
+            i_mode = PP_DEBLOCK_Y_H|PP_DEBLOCK_Y_V|
+                     PP_DEBLOCK_C_H;
+            break;
+        case( 4 ):
+            i_mode = PP_DEBLOCK_Y_H|PP_DEBLOCK_Y_V|
+                     PP_DEBLOCK_C_H|PP_DEBLOCK_C_V;
+            break;
+        case( 5 ):
+            i_mode = PP_DEBLOCK_Y_H|PP_DEBLOCK_Y_V|
+                     PP_DEBLOCK_C_H|PP_DEBLOCK_C_V|
+                     PP_DERING_Y;
+            break;
+        case( 6 ):
+            i_mode = PP_DEBLOCK_Y_H|PP_DEBLOCK_Y_V|
+                     PP_DEBLOCK_C_H|PP_DEBLOCK_C_V|
+                     PP_DERING_Y|PP_DERING_C;
+            break;
+        default:
+            i_mode = 0;
+    }
+    if( b_autolevel )
+    {
+        i_mode |= PP_AUTOLEVEL;
+    }
+
+    return( i_mode );
+}
+
+/*****************************************************************************
+ * pp_postprocess : make post-filter as defined in MPEG4-ISO 
+ *****************************************************************************
+ *****************************************************************************/
+
+static int pp_postprocess( picture_t *p_pic,
+                           QT_STORE_T *p_QP_store, unsigned int i_QP_stride,
+                           unsigned int i_mode )
+{
+    /* Some sanity checks */
+//    if( ( p_pic->i_height&0x0f )||( p_pic->i_width&0x0f )||
+    if( ( p_pic->p_heap->i_chroma != VLC_FOURCC( 'I', '4', '2', '0' ) )&&
+        ( p_pic->p_heap->i_chroma != VLC_FOURCC( 'Y', 'V', '1', '2' ) ) )
+    {
+        return( PP_ERR_INVALID_PICTURE );
+    }
+
+    if( ( !p_QP_store )||( i_QP_stride < p_pic->p_heap->i_width >> 4 ) )
+    {
+        return( PP_ERR_INVALID_QP );
+    }
+
+    /* First do vertical deblocking and then horizontal */
+    /* Luminance */
+
+    if( i_mode&PP_DEBLOCK_Y_V )
+    {
+        E_( pp_deblock_V )( p_pic->Y_PIXELS,
+                            p_pic->p_heap->i_width, p_pic->p_heap->i_height, p_pic->Y_PITCH,
+                            p_QP_store, i_QP_stride,
+                            0 );
+    }
+    if( i_mode&PP_DEBLOCK_Y_H )
+    {
+        E_( pp_deblock_H )( p_pic->Y_PIXELS,
+                            p_pic->p_heap->i_width, p_pic->p_heap->i_height, p_pic->Y_PITCH,
+                            p_QP_store, i_QP_stride,
+                            0 );
+    }
+
+    /* Chrominance */
+    if( i_mode&PP_DEBLOCK_C_V )
+    {
+        E_( pp_deblock_V )( p_pic->U_PIXELS,
+                            p_pic->p_heap->i_width >> 1, p_pic->p_heap->i_height >> 1, 
+                            p_pic->U_PITCH,
+                            p_QP_store, i_QP_stride,
+                            1 );
+        E_( pp_deblock_V )( p_pic->V_PIXELS,
+                            p_pic->p_heap->i_width >> 1, p_pic->p_heap->i_height >> 1, 
+                            p_pic->V_PITCH,
+                            p_QP_store, i_QP_stride,
+                            1 );
+    }
+    if( i_mode&PP_DEBLOCK_C_H )
+    {
+        E_( pp_deblock_H )( p_pic->U_PIXELS,
+                            p_pic->p_heap->i_width >> 1, p_pic->p_heap->i_height >> 1, 
+                            p_pic->U_PITCH,
+                            p_QP_store, i_QP_stride,
+                            1 );
+        E_( pp_deblock_H )( p_pic->V_PIXELS,
+                            p_pic->p_heap->i_width >> 1, p_pic->p_heap->i_height >> 1, 
+                            p_pic->V_PITCH,
+                            p_QP_store, i_QP_stride,
+                            1 );
+    }
+ 
+    /* After deblocking do dering */   
+    /* TODO check for min size */
+    
+    if( i_mode&PP_DERING_Y )
+    {
+        E_( pp_dering_Y )( p_pic->Y_PIXELS,
+                           p_pic->p_heap->i_width, p_pic->p_heap->i_height, 
+                           p_pic->Y_PITCH,
+                           p_QP_store, i_QP_stride );
+    }
+    if( i_mode&PP_DERING_C )
+    {
+        E_( pp_dering_C )( p_pic->U_PIXELS,
+                           p_pic->p_heap->i_width >> 1, p_pic->p_heap->i_height >> 1, 
+                           p_pic->U_PITCH,
+                           p_QP_store, i_QP_stride );
+
+        E_( pp_dering_C )( p_pic->V_PIXELS,
+                           p_pic->p_heap->i_width >> 1, p_pic->p_heap->i_height >> 1, 
+                           p_pic->V_PITCH,
+                           p_QP_store, i_QP_stride );
+
+    }
+#if defined( MODULE_NAME_IS_postprocessing_mmx )||defined( MODULE_NAME_IS_postprocessing_mmxext )
+    /* We have used MMX so return to safe FPU state */
+    __asm__ __volatile__ ( "emms"  );
+#endif
+    return( PP_ERR_OK );
+}

modules/codec/ffmpeg/postprocessing/postprocessing.h

+/*****************************************************************************
+ * postprocessing.h
+ *****************************************************************************
+ * Copyright (C) 2001 VideoLAN
+ * $Id: postprocessing.h,v 1.1 2002/08/04 22:13:06 fenrir Exp $
+ *
+ * Authors: Laurent Aimar <fenrir@via.ecp.fr>
+ * 
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
+ *****************************************************************************/
+
+#define QT_STORE_T int
+
+/* postprocessing available using to create i_mode */
+#define PP_DEBLOCK_Y_H 0x00000001
+#define PP_DEBLOCK_Y_V 0x00000002
+#define PP_DEBLOCK_C_H 0x00000004
+#define PP_DEBLOCK_C_V 0x00000008
+
+#define PP_DERING_Y    0x00000010
+#define PP_DERING_C    0x00000020
+
+#define PP_AUTOLEVEL   0x80000000
+
+/* error code, not really used */
+#define PP_ERR_OK               0 /* no problem */
+#define PP_ERR_INVALID_PICTURE  1 /* wrong picture size or chroma */
+#define PP_ERR_INVALID_QP       2 /* need valid QP to make the postprocess */
+#define PP_ERR_UNKNOWN        255
+
+
+typedef struct postprocessing_s
+{
+    VLC_COMMON_MEMBERS
+    
+    module_t * p_module;
+    
+    u32 (*pf_getmode)( int i_quality, int b_autolevel );
+
+    int (*pf_postprocess)( picture_t *p_pic,
+                           QT_STORE_T *p_QP_store, unsigned int i_QP_stride,
+                           unsigned int i_mode );
+} postprocessing_t;
+

modules/codec/ffmpeg/postprocessing/postprocessing_common.h

+/*****************************************************************************
+ * postprocessing_common.h
+ *****************************************************************************
+ * Copyright (C) 2001 VideoLAN
+ * $Id: postprocessing_common.h,v 1.1 2002/08/04 22:13:06 fenrir Exp $
+ *
+ * Authors: Laurent Aimar <fenrir@via.ecp.fr>
+ * 
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
+ *****************************************************************************/
+
+//#define PP_USE_3DNOW /* Nothing done yet */
+//#define PP_USE_MMX   /* when only MMX is supported */
+//#define PP_USE_MMXEXT  /* when MMXEXT is also supported, imply MMX */
+
+
+/* thresholds for deblocking, I've taken value given by ISO  */
+#define PP_THR1 2ULL /* threshold for deblocking */
+
+#define PP_2xTHR1 ( 2 * PP_THR1 )/* internal usage */
+
+#define PP_THR2 6ULL
+
+
+
+/* Some usefull macros */
+#define PP_MAX( a, b ) ( a > b ? (a) : (b) )
+#define PP_MIN( a, b ) ( a < b ? (a) : (b) )
+#define PP_ABS( x ) ( ( x < 0 ) ? (-(x)) : (x) )
+#define PP_SGN( x ) ( ( x < 0 ) ? -1 : 1 )
+#define PP_MIN3( a, b, c ) ( PP_MIN( (a), PP_MIN( (b), (c) ) ) )
+#define PP_CLIP( x, a, b ) ( PP_MAX( (a), PP_MIN( (x), (b) ) ) )
+
+void E_( pp_deblock_V )();
+void E_( pp_deblock_H )();
+
+void E_( pp_dering_Y )();
+void E_( pp_dering_C )();