• Main Page
  • Related Pages
  • Modules
  • Data Structures
  • Files
  • File List
  • Globals

libavcodec/h261.c

Go to the documentation of this file.
00001 /*
00002  * H261 common code
00003  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
00004  * Copyright (c) 2004 Maarten Daniels
00005  *
00006  * This file is part of FFmpeg.
00007  *
00008  * FFmpeg is free software; you can redistribute it and/or
00009  * modify it under the terms of the GNU Lesser General Public
00010  * License as published by the Free Software Foundation; either
00011  * version 2.1 of the License, or (at your option) any later version.
00012  *
00013  * FFmpeg is distributed in the hope that it will be useful,
00014  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00015  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00016  * Lesser General Public License for more details.
00017  *
00018  * You should have received a copy of the GNU Lesser General Public
00019  * License along with FFmpeg; if not, write to the Free Software
00020  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00021  */
00022 
00028 #include "dsputil.h"
00029 #include "avcodec.h"
00030 #include "h261.h"
00031 
00032 #define IS_FIL(a)    ((a)&MB_TYPE_H261_FIL)
00033 
00034 uint8_t ff_h261_rl_table_store[2][2*MAX_RUN + MAX_LEVEL + 3];
00035 
00036 void ff_h261_loop_filter(MpegEncContext *s){
00037     H261Context * h= (H261Context*)s;
00038     const int linesize  = s->linesize;
00039     const int uvlinesize= s->uvlinesize;
00040     uint8_t *dest_y = s->dest[0];
00041     uint8_t *dest_cb= s->dest[1];
00042     uint8_t *dest_cr= s->dest[2];
00043 
00044     if(!(IS_FIL (h->mtype)))
00045         return;
00046 
00047     s->dsp.h261_loop_filter(dest_y                   , linesize);
00048     s->dsp.h261_loop_filter(dest_y                + 8, linesize);
00049     s->dsp.h261_loop_filter(dest_y + 8 * linesize    , linesize);
00050     s->dsp.h261_loop_filter(dest_y + 8 * linesize + 8, linesize);
00051     s->dsp.h261_loop_filter(dest_cb, uvlinesize);
00052     s->dsp.h261_loop_filter(dest_cr, uvlinesize);
00053 }
00054 

Generated on Fri Sep 16 2011 17:17:36 for FFmpeg by  doxygen 1.7.1