/*
- * Copyright (C) 2003 the ffmpeg project
+ * Copyright (C) 2003 Mike Melanson
+ * Copyright (C) 2003 Dr. Tim Ferguson
*
* This file is part of FFmpeg.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
*/
/**
- * @file roqvideo.c
- * Id RoQ Video common functions based on work by Dr. Tim Ferguson
+ * @file libavcodec/roqvideo.c
+ * id RoQ Video common functions based on work by Dr. Tim Ferguson
*/
#include "avcodec.h"
#include "roqvideo.h"
-#define avg2(a,b) av_clip_uint8(((int)(a)+(int)(b)+1)>>1)
-#define avg4(a,b,c,d) av_clip_uint8(((int)(a)+(int)(b)+(int)(c)+(int)(d)+2)>>2)
+static inline void block_copy(unsigned char *out, unsigned char *in,
+ int outstride, int instride, int sz)
+{
+ int rows = sz;
+ while(rows--) {
+ memcpy(out, in, sz);
+ out += outstride;
+ in += instride;
+ }
+}
void ff_apply_vector_2x2(RoqContext *ri, int x, int y, roq_cell *cell)
{
- unsigned char *yptr;
-
- yptr = ri->current_frame->data[0] + (y * ri->y_stride) + x;
- *yptr++ = cell->y[0];
- *yptr++ = cell->y[1];
- yptr += (ri->y_stride - 2);
- *yptr++ = cell->y[2];
- *yptr++ = cell->y[3];
- ri->current_frame->data[1][(y/2) * (ri->c_stride) + x/2] = cell->u;
- ri->current_frame->data[2][(y/2) * (ri->c_stride) + x/2] = cell->v;
+ unsigned char *bptr;
+ int boffs,stride;
+
+ stride = ri->current_frame->linesize[0];
+ boffs = y*stride + x;
+
+ bptr = ri->current_frame->data[0] + boffs;
+ bptr[0 ] = cell->y[0];
+ bptr[1 ] = cell->y[1];
+ bptr[stride ] = cell->y[2];
+ bptr[stride+1] = cell->y[3];
+
+ stride = ri->current_frame->linesize[1];
+ boffs = y*stride + x;
+
+ bptr = ri->current_frame->data[1] + boffs;
+ bptr[0 ] =
+ bptr[1 ] =
+ bptr[stride ] =
+ bptr[stride+1] = cell->u;
+
+ bptr = ri->current_frame->data[2] + boffs;
+ bptr[0 ] =
+ bptr[1 ] =
+ bptr[stride ] =
+ bptr[stride+1] = cell->v;
}
void ff_apply_vector_4x4(RoqContext *ri, int x, int y, roq_cell *cell)
{
- unsigned long row_inc, c_row_inc;
- register unsigned char y0, y1, u, v;
- unsigned char *yptr, *uptr, *vptr;
-
- yptr = ri->current_frame->data[0] + (y * ri->y_stride) + x;
- uptr = ri->current_frame->data[1] + (y/2) * (ri->c_stride) + x/2;
- vptr = ri->current_frame->data[2] + (y/2) * (ri->c_stride) + x/2;
-
- row_inc = ri->y_stride - 4;
- c_row_inc = (ri->c_stride) - 2;
- *yptr++ = y0 = cell->y[0]; *uptr++ = u = cell->u; *vptr++ = v = cell->v;
- *yptr++ = y0;
- *yptr++ = y1 = cell->y[1]; *uptr++ = u; *vptr++ = v;
- *yptr++ = y1;
-
- yptr += row_inc;
-
- *yptr++ = y0;
- *yptr++ = y0;
- *yptr++ = y1;
- *yptr++ = y1;
-
- yptr += row_inc; uptr += c_row_inc; vptr += c_row_inc;
-
- *yptr++ = y0 = cell->y[2]; *uptr++ = u; *vptr++ = v;
- *yptr++ = y0;
- *yptr++ = y1 = cell->y[3]; *uptr++ = u; *vptr++ = v;
- *yptr++ = y1;
-
- yptr += row_inc;
-
- *yptr++ = y0;
- *yptr++ = y0;
- *yptr++ = y1;
- *yptr++ = y1;
+ unsigned char *bptr;
+ int boffs,stride;
+
+ stride = ri->current_frame->linesize[0];
+ boffs = y*stride + x;
+
+ bptr = ri->current_frame->data[0] + boffs;
+ bptr[ 0] = bptr[ 1] = bptr[stride ] = bptr[stride +1] = cell->y[0];
+ bptr[ 2] = bptr[ 3] = bptr[stride +2] = bptr[stride +3] = cell->y[1];
+ bptr[stride*2 ] = bptr[stride*2+1] = bptr[stride*3 ] = bptr[stride*3+1] = cell->y[2];
+ bptr[stride*2+2] = bptr[stride*2+3] = bptr[stride*3+2] = bptr[stride*3+3] = cell->y[3];
+
+ stride = ri->current_frame->linesize[1];
+ boffs = y*stride + x;
+
+ bptr = ri->current_frame->data[1] + boffs;
+ bptr[ 0] = bptr[ 1] = bptr[stride ] = bptr[stride +1] =
+ bptr[ 2] = bptr[ 3] = bptr[stride +2] = bptr[stride +3] =
+ bptr[stride*2 ] = bptr[stride*2+1] = bptr[stride*3 ] = bptr[stride*3+1] =
+ bptr[stride*2+2] = bptr[stride*2+3] = bptr[stride*3+2] = bptr[stride*3+3] = cell->u;
+
+ bptr = ri->current_frame->data[2] + boffs;
+ bptr[ 0] = bptr[ 1] = bptr[stride ] = bptr[stride +1] =
+ bptr[ 2] = bptr[ 3] = bptr[stride +2] = bptr[stride +3] =
+ bptr[stride*2 ] = bptr[stride*2+1] = bptr[stride*3 ] = bptr[stride*3+1] =
+ bptr[stride*2+2] = bptr[stride*2+3] = bptr[stride*3+2] = bptr[stride*3+3] = cell->v;
}
-void ff_apply_motion_4x4(RoqContext *ri, int x, int y,
- int deltax, int deltay)
+
+static inline void apply_motion_generic(RoqContext *ri, int x, int y, int deltax,
+ int deltay, int sz)
{
- int i, hw, mx, my;
- unsigned char *pa, *pb;
+ int mx, my, cp;
mx = x + deltax;
my = y + deltay;
/* check MV against frame boundaries */
- if ((mx < 0) || (mx > ri->avctx->width - 4) ||
- (my < 0) || (my > ri->avctx->height - 4)) {
+ if ((mx < 0) || (mx > ri->width - sz) ||
+ (my < 0) || (my > ri->height - sz)) {
av_log(ri->avctx, AV_LOG_ERROR, "motion vector out of bounds: MV = (%d, %d), boundaries = (0, 0, %d, %d)\n",
- mx, my, ri->avctx->width, ri->avctx->height);
+ mx, my, ri->width, ri->height);
return;
}
- pa = ri->current_frame->data[0] + (y * ri->y_stride) + x;
- pb = ri->last_frame->data[0] + (my * ri->y_stride) + mx;
- for(i = 0; i < 4; i++) {
- pa[0] = pb[0];
- pa[1] = pb[1];
- pa[2] = pb[2];
- pa[3] = pb[3];
- pa += ri->y_stride;
- pb += ri->y_stride;
+ for(cp = 0; cp < 3; cp++) {
+ int outstride = ri->current_frame->linesize[cp];
+ int instride = ri->last_frame ->linesize[cp];
+ block_copy(ri->current_frame->data[cp] + y*outstride + x,
+ ri->last_frame->data[cp] + my*instride + mx,
+ outstride, instride, sz);
}
+}
- hw = ri->y_stride/2;
- pa = ri->current_frame->data[1] + (y * ri->y_stride)/4 + x/2;
- pb = ri->last_frame->data[1] + (my/2) * (ri->y_stride/2) + (mx + 1)/2;
-
- for(i = 0; i < 2; i++) {
- switch(((my & 0x01) << 1) | (mx & 0x01)) {
-
- case 0:
- pa[0] = pb[0];
- pa[1] = pb[1];
- pa[hw] = pb[hw];
- pa[hw+1] = pb[hw+1];
- break;
-
- case 1:
- pa[0] = avg2(pb[0], pb[1]);
- pa[1] = avg2(pb[1], pb[2]);
- pa[hw] = avg2(pb[hw], pb[hw+1]);
- pa[hw+1] = avg2(pb[hw+1], pb[hw+2]);
- break;
-
- case 2:
- pa[0] = avg2(pb[0], pb[hw]);
- pa[1] = avg2(pb[1], pb[hw+1]);
- pa[hw] = avg2(pb[hw], pb[hw*2]);
- pa[hw+1] = avg2(pb[hw+1], pb[(hw*2)+1]);
- break;
-
- case 3:
- pa[0] = avg4(pb[0], pb[1], pb[hw], pb[hw+1]);
- pa[1] = avg4(pb[1], pb[2], pb[hw+1], pb[hw+2]);
- pa[hw] = avg4(pb[hw], pb[hw+1], pb[hw*2], pb[(hw*2)+1]);
- pa[hw+1] = avg4(pb[hw+1], pb[hw+2], pb[(hw*2)+1], pb[(hw*2)+1]);
- break;
- }
-
- pa = ri->current_frame->data[2] + (y * ri->y_stride)/4 + x/2;
- pb = ri->last_frame->data[2] + (my/2) * (ri->y_stride/2) + (mx + 1)/2;
- }
+
+void ff_apply_motion_4x4(RoqContext *ri, int x, int y,
+ int deltax, int deltay)
+{
+ apply_motion_generic(ri, x, y, deltax, deltay, 4);
}
void ff_apply_motion_8x8(RoqContext *ri, int x, int y,
int deltax, int deltay)
{
- int mx, my, i, j, hw;
- unsigned char *pa, *pb;
-
- mx = x + deltax;
- my = y + deltay;
-
- /* check MV against frame boundaries */
- if ((mx < 0) || (mx > ri->avctx->width - 8) ||
- (my < 0) || (my > ri->avctx->height - 8)) {
- av_log(ri->avctx, AV_LOG_ERROR, "motion vector out of bounds: MV = (%d, %d), boundaries = (0, 0, %d, %d)\n",
- mx, my, ri->avctx->width, ri->avctx->height);
- return;
- }
-
- pa = ri->current_frame->data[0] + (y * ri->y_stride) + x;
- pb = ri->last_frame->data[0] + (my * ri->y_stride) + mx;
- for(i = 0; i < 8; i++) {
- pa[0] = pb[0];
- pa[1] = pb[1];
- pa[2] = pb[2];
- pa[3] = pb[3];
- pa[4] = pb[4];
- pa[5] = pb[5];
- pa[6] = pb[6];
- pa[7] = pb[7];
- pa += ri->y_stride;
- pb += ri->y_stride;
- }
-
- hw = ri->c_stride;
- pa = ri->current_frame->data[1] + (y * ri->y_stride)/4 + x/2;
- pb = ri->last_frame->data[1] + (my/2) * (ri->y_stride/2) + (mx + 1)/2;
- for(j = 0; j < 2; j++) {
- for(i = 0; i < 4; i++) {
- switch(((my & 0x01) << 1) | (mx & 0x01)) {
-
- case 0:
- pa[0] = pb[0];
- pa[1] = pb[1];
- pa[2] = pb[2];
- pa[3] = pb[3];
- break;
-
- case 1:
- pa[0] = avg2(pb[0], pb[1]);
- pa[1] = avg2(pb[1], pb[2]);
- pa[2] = avg2(pb[2], pb[3]);
- pa[3] = avg2(pb[3], pb[4]);
- break;
-
- case 2:
- pa[0] = avg2(pb[0], pb[hw]);
- pa[1] = avg2(pb[1], pb[hw+1]);
- pa[2] = avg2(pb[2], pb[hw+2]);
- pa[3] = avg2(pb[3], pb[hw+3]);
- break;
-
- case 3:
- pa[0] = avg4(pb[0], pb[1], pb[hw], pb[hw+1]);
- pa[1] = avg4(pb[1], pb[2], pb[hw+1], pb[hw+2]);
- pa[2] = avg4(pb[2], pb[3], pb[hw+2], pb[hw+3]);
- pa[3] = avg4(pb[3], pb[4], pb[hw+3], pb[hw+4]);
- break;
- }
- pa += ri->c_stride;
- pb += ri->c_stride;
- }
-
- pa = ri->current_frame->data[2] + (y * ri->y_stride)/4 + x/2;
- pb = ri->last_frame->data[2] + (my/2) * (ri->y_stride/2) + (mx + 1)/2;
- }
+ apply_motion_generic(ri, x, y, deltax, deltay, 8);
}
projects / frescor / ffmpeg.git / blobdiff