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Code Issues Releases Activity

VP8 bilinear filter

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Originally committed as revision 23813 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
David Conrad 2010-06-27 01:46:29 +00:00
parent a02bb835ac
commit 0ef1dbedcb
3 changed files with 85 additions and 8 deletions
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22
libavcodec/vp8.c
View File

@ -45,6 +45,7 @@ typedef struct {
DSPContext dsp;
VP8DSPContext vp8dsp;
H264PredContext hpc;
vp8_mc_func put_pixels_tab[3][3][3];
AVFrame frames[4];
AVFrame *framep[4];
uint8_t *edge_emu_buffer;
@ -379,8 +380,13 @@ static int decode_frame_header(VP8Context *s, const uint8_t *buf, int buf_size)
buf += 3;
buf_size -= 3;
if (s->profile)
av_log(s->avctx, AV_LOG_WARNING, "Profile %d not fully handled\n", s->profile);
if (s->profile > 3)
av_log(s->avctx, AV_LOG_WARNING, "Unknown profile %d\n", s->profile);
if (!s->profile)
memcpy(s->put_pixels_tab, s->vp8dsp.put_vp8_epel_pixels_tab, sizeof(s->put_pixels_tab));
else // profile 1-3 use bilinear, 4+ aren't defined so whatever
memcpy(s->put_pixels_tab, s->vp8dsp.put_vp8_bilinear_pixels_tab, sizeof(s->put_pixels_tab));
if (header_size > buf_size - 7*s->keyframe) {
av_log(s->avctx, AV_LOG_ERROR, "Header size larger than data provided\n");
@ -951,7 +957,7 @@ static void inter_predict(VP8Context *s, uint8_t *dst[3], VP8Macroblock *mb,
/* Y */
vp8_mc(s, 1, dst[0], s->framep[mb->ref_frame]->data[0], &mb->mv,
x_off, y_off, 16, 16, width, height, s->linesize,
s->vp8dsp.put_vp8_epel_pixels_tab[0]);
s->put_pixels_tab[0]);
/* U/V */
uvmv = mb->mv;
@ -962,10 +968,10 @@ static void inter_predict(VP8Context *s, uint8_t *dst[3], VP8Macroblock *mb,
x_off >>= 1; y_off >>= 1; width >>= 1; height >>= 1;
vp8_mc(s, 0, dst[1], s->framep[mb->ref_frame]->data[1], &uvmv,
x_off, y_off, 8, 8, width, height, s->uvlinesize,
s->vp8dsp.put_vp8_epel_pixels_tab[1]);
s->put_pixels_tab[1]);
vp8_mc(s, 0, dst[2], s->framep[mb->ref_frame]->data[2], &uvmv,
x_off, y_off, 8, 8, width, height, s->uvlinesize,
s->vp8dsp.put_vp8_epel_pixels_tab[1]);
s->put_pixels_tab[1]);
} else {
int x, y;
@ -976,7 +982,7 @@ static void inter_predict(VP8Context *s, uint8_t *dst[3], VP8Macroblock *mb,
s->framep[mb->ref_frame]->data[0], &mb->bmv[4*y + x],
4*x + x_off, 4*y + y_off, 4, 4,
width, height, s->linesize,
s->vp8dsp.put_vp8_epel_pixels_tab[2]);
s->put_pixels_tab[2]);
}
}
@ -1002,12 +1008,12 @@ static void inter_predict(VP8Context *s, uint8_t *dst[3], VP8Macroblock *mb,
s->framep[mb->ref_frame]->data[1], &uvmv,
4*x + x_off, 4*y + y_off, 4, 4,
width, height, s->uvlinesize,
s->vp8dsp.put_vp8_epel_pixels_tab[2]);
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,
4*x + x_off, 4*y + y_off, 4, 4,
width, height, s->uvlinesize,
s->vp8dsp.put_vp8_epel_pixels_tab[2]);
s->put_pixels_tab[2]);
}
}
}

70
libavcodec/vp8dsp.c
View File

@ -348,6 +348,61 @@ VP8_EPEL_HV(16, FILTER_6TAP, FILTER_6TAP, h6v6)
VP8_EPEL_HV(8, FILTER_6TAP, FILTER_6TAP, h6v6)
VP8_EPEL_HV(4, FILTER_6TAP, FILTER_6TAP, h6v6)
#define VP8_BILINEAR(SIZE) \
static void put_vp8_bilinear ## SIZE ## _h_c(uint8_t *dst, int stride, uint8_t *src, int s2, int h, int mx, int my) \
{ \
int a = 8-mx, b = mx; \
int x, y; \
\
for (y = 0; y < h; y++) { \
for (x = 0; x < SIZE; x++) \
dst[x] = (a*src[x] + b*src[x+1] + 4) >> 3; \
dst += stride; \
src += stride; \
} \
} \
static void put_vp8_bilinear ## SIZE ## _v_c(uint8_t *dst, int stride, uint8_t *src, int s2, int h, int mx, int my) \
{ \
int c = 8-my, d = my; \
int x, y; \
\
for (y = 0; y < h; y++) { \
for (x = 0; x < SIZE; x++) \
dst[x] = (c*src[x] + d*src[x+stride] + 4) >> 3; \
dst += stride; \
src += stride; \
} \
} \
\
static void put_vp8_bilinear ## SIZE ## _hv_c(uint8_t *dst, int stride, uint8_t *src, int s2, int h, int mx, int my) \
{ \
int a = 8-mx, b = mx; \
int c = 8-my, d = my; \
int x, y; \
uint8_t tmp_array[(2*SIZE+1)*SIZE]; \
uint8_t *tmp = tmp_array; \
\
for (y = 0; y < h+1; y++) { \
for (x = 0; x < SIZE; x++) \
tmp[x] = (a*src[x] + b*src[x+1] + 4) >> 3; \
tmp += SIZE; \
src += stride; \
} \
\
tmp = tmp_array; \
\
for (y = 0; y < h; y++) { \
for (x = 0; x < SIZE; x++) \
dst[x] = (c*tmp[x] + d*tmp[x+SIZE] + 4) >> 3; \
dst += stride; \
tmp += SIZE; \
} \
}
VP8_BILINEAR(16)
VP8_BILINEAR(8)
VP8_BILINEAR(4)
#define VP8_MC_FUNC(IDX, SIZE) \
dsp->put_vp8_epel_pixels_tab[IDX][0][0] = put_vp8_pixels ## SIZE ## _c; \
dsp->put_vp8_epel_pixels_tab[IDX][0][1] = put_vp8_epel ## SIZE ## _h4_c; \
@ -359,6 +414,17 @@ VP8_EPEL_HV(4, FILTER_6TAP, FILTER_6TAP, h6v6)
dsp->put_vp8_epel_pixels_tab[IDX][2][1] = put_vp8_epel ## SIZE ## _h4v6_c; \
dsp->put_vp8_epel_pixels_tab[IDX][2][2] = put_vp8_epel ## SIZE ## _h6v6_c
#define VP8_BILINEAR_MC_FUNC(IDX, SIZE) \
dsp->put_vp8_bilinear_pixels_tab[IDX][0][0] = put_vp8_pixels ## SIZE ## _c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][0][1] = put_vp8_bilinear ## SIZE ## _h_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][0][2] = put_vp8_bilinear ## SIZE ## _h_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][1][0] = put_vp8_bilinear ## SIZE ## _v_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][1][1] = put_vp8_bilinear ## SIZE ## _hv_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][1][2] = put_vp8_bilinear ## SIZE ## _hv_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][2][0] = put_vp8_bilinear ## SIZE ## _v_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][2][1] = put_vp8_bilinear ## SIZE ## _hv_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][2][2] = put_vp8_bilinear ## SIZE ## _hv_c
av_cold void ff_vp8dsp_init(VP8DSPContext *dsp)
{
dsp->vp8_luma_dc_wht = vp8_luma_dc_wht_c;
@ -381,4 +447,8 @@ av_cold void ff_vp8dsp_init(VP8DSPContext *dsp)
VP8_MC_FUNC(0, 16);
VP8_MC_FUNC(1, 8);
VP8_MC_FUNC(2, 4);
VP8_BILINEAR_MC_FUNC(0, 16);
VP8_BILINEAR_MC_FUNC(1, 8);
VP8_BILINEAR_MC_FUNC(2, 4);
}

1
libavcodec/vp8dsp.h
View File

@ -58,6 +58,7 @@ typedef struct VP8DSPContext {
* so something like put_vp8_epel_pixels_tab[width>>3][2*!!my-(my&1)][2*!!mx-(mx&1)](..., mx, my)
*/
vp8_mc_func put_vp8_epel_pixels_tab[3][3][3];
vp8_mc_func put_vp8_bilinear_pixels_tab[3][3][3];
} VP8DSPContext;
void ff_put_vp8_pixels16_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y);