openharmony/third_party_ffmpeg
1
0
Fork 0
mirror of https://gitee.com/openharmony/third_party_ffmpeg synced 2024-11-23 11:19:55 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Support range reduced frames

Browse Source 
Originally committed as revision 5844 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Kostya Shishkov 2006-07-29 03:07:30 +00:00
parent 138712fe43
commit ffb9a8b1b6
1 changed files with 61 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

64
libavcodec/vc1.c
View File

@ -880,6 +880,14 @@ static void vc1_put_block(VC1Context *v, DCTELEM block[6][64])
int ys, us, vs;
DSPContext *dsp = &v->s.dsp;
if(v->rangeredfrm) {
int i, j, k;
for(k = 0; k < 6; k++)
for(j = 0; j < 8; j++)
for(i = 0; i < 8; i++)
block[k][i + j*8] = ((block[k][i + j*8] - 128) << 1) + 128;
}
ys = v->s.current_picture.linesize[0];
us = v->s.current_picture.linesize[1];
vs = v->s.current_picture.linesize[2];
@ -943,7 +951,7 @@ static void vc1_mc_1mv(VC1Context *v, int dir)
srcV = s->edge_emu_buffer + 18 * s->linesize;
}
if((v->mv_mode == MV_PMODE_INTENSITY_COMP)
if(v->rangeredfrm || (v->mv_mode == MV_PMODE_INTENSITY_COMP)
|| (unsigned)src_x > s->h_edge_pos - (mx&3) - 16
|| (unsigned)src_y > s->v_edge_pos - (my&3) - 16){
uint8_t *uvbuf= s->edge_emu_buffer + 18 * s->linesize;
@ -957,6 +965,26 @@ static void vc1_mc_1mv(VC1Context *v, int dir)
uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
srcU = uvbuf;
srcV = uvbuf + 16;
/* if we deal with range reduction we need to scale source blocks */
if(v->rangeredfrm) {
int i, j;
uint8_t *src, *src2;
src = srcY;
for(j = 0; j < 17; j++) {
for(i = 0; i < 17; i++) src[i] = ((src[i] - 128) >> 1) + 128;
src += s->linesize;
}
src = srcU; src2 = srcV;
for(j = 0; j < 9; j++) {
for(i = 0; i < 9; i++) {
src[i] = ((src[i] - 128) >> 1) + 128;
src2[i] = ((src2[i] - 128) >> 1) + 128;
}
src += s->uvlinesize;
src2 += s->uvlinesize;
}
}
/* if we deal with intensity compensation we need to scale source blocks */
if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {
int i, j;
@ -1039,11 +1067,22 @@ static void vc1_mc_4mv_luma(VC1Context *v, int n)
srcY += src_y * s->linesize + src_x;
if((unsigned)src_x > s->h_edge_pos - (mx&3) - 16
if(v->rangeredfrm || (unsigned)src_x > s->h_edge_pos - (mx&3) - 16
|| (unsigned)src_y > s->v_edge_pos - (my&3) - 16){
ff_emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, 16+1, 16+1,
src_x, src_y, s->h_edge_pos, s->v_edge_pos);
srcY = s->edge_emu_buffer;
/* if we deal with range reduction we need to scale source blocks */
if(v->rangeredfrm) {
int i, j;
uint8_t *src;
src = srcY;
for(j = 0; j < 17; j++) {
for(i = 0; i < 17; i++) src[i] = ((src[i] - 128) >> 1) + 128;
src += s->linesize;
}
}
}
if(!s->quarter_sample) { // hpel mc
@ -1141,7 +1180,7 @@ static void vc1_mc_4mv_chroma(VC1Context *v)
uvsrc_y = clip(uvsrc_y, -8, s->mb_height * 8);
srcU = s->last_picture.data[1] + uvsrc_y * s->uvlinesize + uvsrc_x;
srcV = s->last_picture.data[2] + uvsrc_y * s->uvlinesize + uvsrc_x;
if((unsigned)uvsrc_x > (s->h_edge_pos >> 1) - 9
if(v->rangeredfrm || (unsigned)uvsrc_x > (s->h_edge_pos >> 1) - 9
|| (unsigned)uvsrc_y > (s->v_edge_pos >> 1) - 9){
ff_emulated_edge_mc(s->edge_emu_buffer , srcU, s->uvlinesize, 8+1, 8+1,
uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
@ -1149,6 +1188,22 @@ static void vc1_mc_4mv_chroma(VC1Context *v)
uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
srcU = s->edge_emu_buffer;
srcV = s->edge_emu_buffer + 16;
/* if we deal with range reduction we need to scale source blocks */
if(v->rangeredfrm) {
int i, j;
uint8_t *src, *src2;
src = srcU; src2 = srcV;
for(j = 0; j < 9; j++) {
for(i = 0; i < 9; i++) {
src[i] = ((src[i] - 128) >> 1) + 128;
src2[i] = ((src2[i] - 128) >> 1) + 128;
}
src += s->uvlinesize;
src2 += s->uvlinesize;
}
}
}
if(v->fastuvmc) {
@ -2578,6 +2633,7 @@ static int vc1_decode_p_mb(VC1Context *v)
vc1_decode_intra_block(v, s->block[i], i, val, mquant, (i&4)?v->codingset2:v->codingset);
if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
vc1_inv_trans(s->block[i], 8, 8);
if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
for(j = 0; j < 64; j++) s->block[i][j] += 128;
s->dsp.put_pixels_clamped(s->block[i], s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
/* TODO: proper loop filtering */
@ -2681,6 +2737,7 @@ static int vc1_decode_p_mb(VC1Context *v)
vc1_decode_intra_block(v, s->block[i], i, is_coded[i], mquant, (i&4)?v->codingset2:v->codingset);
if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
vc1_inv_trans(s->block[i], 8, 8);
if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
for(j = 0; j < 64; j++) s->block[i][j] += 128;
s->dsp.put_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize);
/* TODO: proper loop filtering */
@ -2846,6 +2903,7 @@ static void vc1_decode_b_mb(VC1Context *v)
vc1_decode_intra_block(v, s->block[i], i, val, mquant, (i&4)?v->codingset2:v->codingset);
if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
vc1_inv_trans(s->block[i], 8, 8);
if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
for(j = 0; j < 64; j++) s->block[i][j] += 128;
s->dsp.put_pixels_clamped(s->block[i], s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
/* TODO: proper loop filtering */