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Code Issues Releases Activity

Eliminate some repeated dereferences in VP8 inter_predict

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Originally committed as revision 24438 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Jason Garrett-Glaser 2010-07-22 21:05:30 +00:00
parent dc5eec8085
commit d292c3455e
1 changed files with 22 additions and 20 deletions
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42
libavcodec/vp8.c
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@ -1102,11 +1102,13 @@ static void inter_predict(VP8Context *s, uint8_t *dst[3], VP8Macroblock *mb,
{
int x_off = mb_x << 4, y_off = mb_y << 4;
int width = 16*s->mb_width, height = 16*s->mb_height;
AVFrame *ref = s->framep[mb->ref_frame];
VP56mv *bmv = mb->bmv;
prefetch_motion(s, mb, mb_x, mb_y, x_off, y_off, VP56_FRAME_PREVIOUS);
if (mb->mode < VP8_MVMODE_SPLIT) {
vp8_mc_part(s, dst, s->framep[mb->ref_frame], x_off, y_off,
vp8_mc_part(s, dst, ref, x_off, y_off,
0, 0, 16, 16, width, height, &mb->mv);
} else switch (mb->partitioning) {
case VP8_SPLITMVMODE_4x4: {
@ -1117,7 +1119,7 @@ static void inter_predict(VP8Context *s, uint8_t *dst[3], VP8Macroblock *mb,
for (y = 0; y < 4; y++) {
for (x = 0; x < 4; x++) {
vp8_mc(s, 1, dst[0] + 4*y*s->linesize + x*4,
s->framep[mb->ref_frame]->data[0], &mb->bmv[4*y + x],
ref->data[0], &bmv[4*y + x],
4*x + x_off, 4*y + y_off, 4, 4,
width, height, s->linesize,
s->put_pixels_tab[2]);
@ -1143,12 +1145,12 @@ static void inter_predict(VP8Context *s, uint8_t *dst[3], VP8Macroblock *mb,
uvmv.y &= ~7;
}
vp8_mc(s, 0, dst[1] + 4*y*s->uvlinesize + x*4,
s->framep[mb->ref_frame]->data[1], &uvmv,
ref->data[1], &uvmv,
4*x + x_off, 4*y + y_off, 4, 4,
width, height, s->uvlinesize,
s->put_pixels_tab[2]);
vp8_mc(s, 0, dst[2] + 4*y*s->uvlinesize + x*4,
s->framep[mb->ref_frame]->data[2], &uvmv,
ref->data[2], &uvmv,
4*x + x_off, 4*y + y_off, 4, 4,
width, height, s->uvlinesize,
s->put_pixels_tab[2]);
@ -1157,26 +1159,26 @@ static void inter_predict(VP8Context *s, uint8_t *dst[3], VP8Macroblock *mb,
break;
}
case VP8_SPLITMVMODE_16x8:
vp8_mc_part(s, dst, s->framep[mb->ref_frame], x_off, y_off,
0, 0, 16, 8, width, height, &mb->bmv[0]);
vp8_mc_part(s, dst, s->framep[mb->ref_frame], x_off, y_off,
0, 8, 16, 8, width, height, &mb->bmv[1]);
vp8_mc_part(s, dst, ref, x_off, y_off,
0, 0, 16, 8, width, height, &bmv[0]);
vp8_mc_part(s, dst, ref, x_off, y_off,
0, 8, 16, 8, width, height, &bmv[1]);
break;
case VP8_SPLITMVMODE_8x16:
vp8_mc_part(s, dst, s->framep[mb->ref_frame], x_off, y_off,
0, 0, 8, 16, width, height, &mb->bmv[0]);
vp8_mc_part(s, dst, s->framep[mb->ref_frame], x_off, y_off,
8, 0, 8, 16, width, height, &mb->bmv[1]);
vp8_mc_part(s, dst, ref, x_off, y_off,
0, 0, 8, 16, width, height, &bmv[0]);
vp8_mc_part(s, dst, ref, x_off, y_off,
8, 0, 8, 16, width, height, &bmv[1]);
break;
case VP8_SPLITMVMODE_8x8:
vp8_mc_part(s, dst, s->framep[mb->ref_frame], x_off, y_off,
0, 0, 8, 8, width, height, &mb->bmv[0]);
vp8_mc_part(s, dst, s->framep[mb->ref_frame], x_off, y_off,
8, 0, 8, 8, width, height, &mb->bmv[1]);
vp8_mc_part(s, dst, s->framep[mb->ref_frame], x_off, y_off,
0, 8, 8, 8, width, height, &mb->bmv[2]);
vp8_mc_part(s, dst, s->framep[mb->ref_frame], x_off, y_off,
8, 8, 8, 8, width, height, &mb->bmv[3]);
vp8_mc_part(s, dst, ref, x_off, y_off,
0, 0, 8, 8, width, height, &bmv[0]);
vp8_mc_part(s, dst, ref, x_off, y_off,
8, 0, 8, 8, width, height, &bmv[1]);
vp8_mc_part(s, dst, ref, x_off, y_off,
0, 8, 8, 8, width, height, &bmv[2]);
vp8_mc_part(s, dst, ref, x_off, y_off,
8, 8, 8, 8, width, height, &bmv[3]);
break;
}