/*
- * H263/MPEG4 backend for ffmpeg encoder and decoder
+ * H.263/MPEG-4 backend for encoder and decoder
* Copyright (c) 2000,2001 Fabrice Bellard
- * H263+ support.
+ * H.263+ support.
* Copyright (c) 2001 Juan J. Sierralta P
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
- * @file libavcodec/h263.c
- * h263/mpeg4 codec.
+ * @file
+ * H.263/MPEG-4 codec.
*/
-//#define DEBUG
#include <limits.h>
-#include "dsputil.h"
#include "avcodec.h"
#include "mpegvideo.h"
#include "h263.h"
#include "h263data.h"
#include "mathops.h"
-#include "unary.h"
+#include "mpegutils.h"
#include "flv.h"
#include "mpeg4video.h"
-//#undef NDEBUG
-//#include <assert.h>
-
-uint8_t ff_h263_static_rl_table_store[2][2][2*MAX_RUN + MAX_LEVEL + 3];
-
void ff_h263_update_motion_val(MpegEncContext * s){
const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
const int wrap = s->b8_stride;
const int xy = s->block_index[0];
- s->current_picture.mbskip_table[mb_xy]= s->mb_skipped;
+ s->current_picture.mbskip_table[mb_xy] = s->mb_skipped;
if(s->mv_type != MV_TYPE_8X8){
int motion_x, motion_y;
s->p_field_mv_table[i][0][mb_xy][0]= s->mv[0][i][0];
s->p_field_mv_table[i][0][mb_xy][1]= s->mv[0][i][1];
}
- s->current_picture.ref_index[0][4*mb_xy ]=
- s->current_picture.ref_index[0][4*mb_xy + 1]= s->field_select[0][0];
- s->current_picture.ref_index[0][4*mb_xy + 2]=
- s->current_picture.ref_index[0][4*mb_xy + 3]= s->field_select[0][1];
+ s->current_picture.ref_index[0][4*mb_xy ] =
+ s->current_picture.ref_index[0][4*mb_xy + 1] = s->field_select[0][0];
+ s->current_picture.ref_index[0][4*mb_xy + 2] =
+ s->current_picture.ref_index[0][4*mb_xy + 3] = s->field_select[0][1];
}
/* no update if 8X8 because it has been done during parsing */
- s->current_picture.motion_val[0][xy][0] = motion_x;
- s->current_picture.motion_val[0][xy][1] = motion_y;
- s->current_picture.motion_val[0][xy + 1][0] = motion_x;
- s->current_picture.motion_val[0][xy + 1][1] = motion_y;
- s->current_picture.motion_val[0][xy + wrap][0] = motion_x;
- s->current_picture.motion_val[0][xy + wrap][1] = motion_y;
+ s->current_picture.motion_val[0][xy][0] = motion_x;
+ s->current_picture.motion_val[0][xy][1] = motion_y;
+ s->current_picture.motion_val[0][xy + 1][0] = motion_x;
+ s->current_picture.motion_val[0][xy + 1][1] = motion_y;
+ s->current_picture.motion_val[0][xy + wrap][0] = motion_x;
+ s->current_picture.motion_val[0][xy + wrap][1] = motion_y;
s->current_picture.motion_val[0][xy + 1 + wrap][0] = motion_x;
s->current_picture.motion_val[0][xy + 1 + wrap][1] = motion_y;
}
if(s->encoding){ //FIXME encoding MUST be cleaned up
if (s->mv_type == MV_TYPE_8X8)
- s->current_picture.mb_type[mb_xy]= MB_TYPE_L0 | MB_TYPE_8x8;
+ s->current_picture.mb_type[mb_xy] = MB_TYPE_L0 | MB_TYPE_8x8;
else if(s->mb_intra)
- s->current_picture.mb_type[mb_xy]= MB_TYPE_INTRA;
+ s->current_picture.mb_type[mb_xy] = MB_TYPE_INTRA;
else
- s->current_picture.mb_type[mb_xy]= MB_TYPE_L0 | MB_TYPE_16x16;
+ s->current_picture.mb_type[mb_xy] = MB_TYPE_L0 | MB_TYPE_16x16;
}
}
-int h263_pred_dc(MpegEncContext * s, int n, int16_t **dc_val_ptr)
+int ff_h263_pred_dc(MpegEncContext * s, int n, int16_t **dc_val_ptr)
{
int x, y, wrap, a, c, pred_dc;
int16_t *dc_val;
uint8_t *dest_cb= s->dest[1];
uint8_t *dest_cr= s->dest[2];
-// if(s->pict_type==FF_B_TYPE && !s->readable) return;
+// if(s->pict_type==AV_PICTURE_TYPE_B && !s->readable) return;
/*
Diag Top
Left Center
*/
- if(!IS_SKIP(s->current_picture.mb_type[xy])){
+ if (!IS_SKIP(s->current_picture.mb_type[xy])) {
qp_c= s->qscale;
- s->dsp.h263_v_loop_filter(dest_y+8*linesize , linesize, qp_c);
- s->dsp.h263_v_loop_filter(dest_y+8*linesize+8, linesize, qp_c);
+ s->h263dsp.h263_v_loop_filter(dest_y + 8 * linesize, linesize, qp_c);
+ s->h263dsp.h263_v_loop_filter(dest_y + 8 * linesize + 8, linesize, qp_c);
}else
qp_c= 0;
if(s->mb_y){
int qp_dt, qp_tt, qp_tc;
- if(IS_SKIP(s->current_picture.mb_type[xy-s->mb_stride]))
+ if (IS_SKIP(s->current_picture.mb_type[xy - s->mb_stride]))
qp_tt=0;
else
- qp_tt= s->current_picture.qscale_table[xy-s->mb_stride];
+ qp_tt = s->current_picture.qscale_table[xy - s->mb_stride];
if(qp_c)
qp_tc= qp_c;
if(qp_tc){
const int chroma_qp= s->chroma_qscale_table[qp_tc];
- s->dsp.h263_v_loop_filter(dest_y , linesize, qp_tc);
- s->dsp.h263_v_loop_filter(dest_y+8, linesize, qp_tc);
+ s->h263dsp.h263_v_loop_filter(dest_y, linesize, qp_tc);
+ s->h263dsp.h263_v_loop_filter(dest_y + 8, linesize, qp_tc);
- s->dsp.h263_v_loop_filter(dest_cb , uvlinesize, chroma_qp);
- s->dsp.h263_v_loop_filter(dest_cr , uvlinesize, chroma_qp);
+ s->h263dsp.h263_v_loop_filter(dest_cb, uvlinesize, chroma_qp);
+ s->h263dsp.h263_v_loop_filter(dest_cr, uvlinesize, chroma_qp);
}
if(qp_tt)
- s->dsp.h263_h_loop_filter(dest_y-8*linesize+8 , linesize, qp_tt);
+ s->h263dsp.h263_h_loop_filter(dest_y - 8 * linesize + 8, linesize, qp_tt);
if(s->mb_x){
- if(qp_tt || IS_SKIP(s->current_picture.mb_type[xy-1-s->mb_stride]))
+ if (qp_tt || IS_SKIP(s->current_picture.mb_type[xy - 1 - s->mb_stride]))
qp_dt= qp_tt;
else
- qp_dt= s->current_picture.qscale_table[xy-1-s->mb_stride];
+ qp_dt = s->current_picture.qscale_table[xy - 1 - s->mb_stride];
if(qp_dt){
const int chroma_qp= s->chroma_qscale_table[qp_dt];
- s->dsp.h263_h_loop_filter(dest_y -8*linesize , linesize, qp_dt);
- s->dsp.h263_h_loop_filter(dest_cb-8*uvlinesize, uvlinesize, chroma_qp);
- s->dsp.h263_h_loop_filter(dest_cr-8*uvlinesize, uvlinesize, chroma_qp);
+ s->h263dsp.h263_h_loop_filter(dest_y - 8 * linesize, linesize, qp_dt);
+ s->h263dsp.h263_h_loop_filter(dest_cb - 8 * uvlinesize, uvlinesize, chroma_qp);
+ s->h263dsp.h263_h_loop_filter(dest_cr - 8 * uvlinesize, uvlinesize, chroma_qp);
}
}
}
if(qp_c){
- s->dsp.h263_h_loop_filter(dest_y +8, linesize, qp_c);
+ s->h263dsp.h263_h_loop_filter(dest_y + 8, linesize, qp_c);
if(s->mb_y + 1 == s->mb_height)
- s->dsp.h263_h_loop_filter(dest_y+8*linesize+8, linesize, qp_c);
+ s->h263dsp.h263_h_loop_filter(dest_y + 8 * linesize + 8, linesize, qp_c);
}
if(s->mb_x){
int qp_lc;
- if(qp_c || IS_SKIP(s->current_picture.mb_type[xy-1]))
+ if (qp_c || IS_SKIP(s->current_picture.mb_type[xy - 1]))
qp_lc= qp_c;
else
- qp_lc= s->current_picture.qscale_table[xy-1];
+ qp_lc = s->current_picture.qscale_table[xy - 1];
if(qp_lc){
- s->dsp.h263_h_loop_filter(dest_y, linesize, qp_lc);
+ s->h263dsp.h263_h_loop_filter(dest_y, linesize, qp_lc);
if(s->mb_y + 1 == s->mb_height){
const int chroma_qp= s->chroma_qscale_table[qp_lc];
- s->dsp.h263_h_loop_filter(dest_y +8* linesize, linesize, qp_lc);
- s->dsp.h263_h_loop_filter(dest_cb , uvlinesize, chroma_qp);
- s->dsp.h263_h_loop_filter(dest_cr , uvlinesize, chroma_qp);
+ s->h263dsp.h263_h_loop_filter(dest_y + 8 * linesize, linesize, qp_lc);
+ s->h263dsp.h263_h_loop_filter(dest_cb, uvlinesize, chroma_qp);
+ s->h263dsp.h263_h_loop_filter(dest_cr, uvlinesize, chroma_qp);
}
}
}
}
-void h263_pred_acdc(MpegEncContext * s, DCTELEM *block, int n)
+void ff_h263_pred_acdc(MpegEncContext * s, int16_t *block, int n)
{
int x, y, wrap, a, c, pred_dc, scale, i;
int16_t *dc_val, *ac_val, *ac_val1;
if (a != 1024) {
ac_val -= 16;
for(i=1;i<8;i++) {
- block[s->dsp.idct_permutation[i<<3]] += ac_val[i];
+ block[s->idsp.idct_permutation[i << 3]] += ac_val[i];
}
pred_dc = a;
}
if (c != 1024) {
ac_val -= 16 * wrap;
for(i=1;i<8;i++) {
- block[s->dsp.idct_permutation[i ]] += ac_val[i + 8];
+ block[s->idsp.idct_permutation[i]] += ac_val[i + 8];
}
pred_dc = c;
}
/* left copy */
for(i=1;i<8;i++)
- ac_val1[i ] = block[s->dsp.idct_permutation[i<<3]];
+ ac_val1[i] = block[s->idsp.idct_permutation[i << 3]];
/* top copy */
for(i=1;i<8;i++)
- ac_val1[8 + i] = block[s->dsp.idct_permutation[i ]];
+ ac_val1[8 + i] = block[s->idsp.idct_permutation[i]];
}
-int16_t *h263_pred_motion(MpegEncContext * s, int block, int dir,
- int *px, int *py)
+int16_t *ff_h263_pred_motion(MpegEncContext * s, int block, int dir,
+ int *px, int *py)
{
int wrap;
int16_t *A, *B, *C, (*mot_val)[2];
A = mot_val[ - 1];
/* special case for first (slice) line */
if (s->first_slice_line && block<3) {
- // we can't just change some MVs to simulate that as we need them for the B frames (and ME)
+ // we can't just change some MVs to simulate that as we need them for the B-frames (and ME)
// and if we ever support non rectangular objects than we need to do a few ifs here anyway :(
if(block==0){ //most common case
if(s->mb_x == s->resync_mb_x){ //rare
}
return *mot_val;
}
-
-
-/**
- * Get the GOB height based on picture height.
- */
-int ff_h263_get_gob_height(MpegEncContext *s){
- if (s->height <= 400)
- return 1;
- else if (s->height <= 800)
- return 2;
- else
- return 4;
-}