generic-library/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Move VP3 loop filter to DSPContext

Browse Source 
Originally committed as revision 15551 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
David Conrad 2008-10-04 10:26:17 +00:00
parent 0d696d34ef
commit 9971331dfb
4 changed files with 46 additions and 43 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
libavcodec/dsputil.c
View File

@ -4471,6 +4471,11 @@ void dsputil_init(DSPContext* c, AVCodecContext *avctx)
c->h263_v_loop_filter= h263_v_loop_filter_c;
}
if (ENABLE_VP3_DECODER || ENABLE_THEORA_DECODER) {
c->vp3_h_loop_filter= ff_vp3_h_loop_filter_c;
c->vp3_v_loop_filter= ff_vp3_v_loop_filter_c;
}
c->h261_loop_filter= h261_loop_filter_c;
c->try_8x8basis= try_8x8basis_c;

6
libavcodec/dsputil.h
View File

@ -86,6 +86,9 @@ void ff_vp3_idct_c(DCTELEM *block/* align 16*/);
void ff_vp3_idct_put_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
void ff_vp3_idct_add_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
void ff_vp3_v_loop_filter_c(uint8_t *src, int stride, int *bounding_values);
void ff_vp3_h_loop_filter_c(uint8_t *src, int stride, int *bounding_values);
/* 1/2^n downscaling functions from imgconvert.c */
void ff_img_copy_plane(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
void ff_shrink22(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
@ -359,6 +362,9 @@ typedef struct DSPContext {
void (*x8_v_loop_filter)(uint8_t *src, int stride, int qscale);
void (*x8_h_loop_filter)(uint8_t *src, int stride, int qscale);
void (*vp3_v_loop_filter)(uint8_t *src, int stride, int *bounding_values);
void (*vp3_h_loop_filter)(uint8_t *src, int stride, int *bounding_values);
/* assume len is a multiple of 4, and arrays are 16-byte aligned */
void (*vorbis_inverse_coupling)(float *mag, float *ang, int blocksize);
void (*ac3_downmix)(float (*samples)[256], float (*matrix)[2], int out_ch, int in_ch, int len);

47
libavcodec/vp3.c
View File

@ -1283,12 +1283,6 @@ static void reverse_dc_prediction(Vp3DecodeContext *s,
}
}
static void horizontal_filter(unsigned char *first_pixel, int stride,
int *bounding_values);
static void vertical_filter(unsigned char *first_pixel, int stride,
int *bounding_values);
/*
* Perform the final rendering for a particular slice of data.
* The slice number ranges from 0..(macroblock_height - 1).
@ -1495,39 +1489,6 @@ static void render_slice(Vp3DecodeContext *s, int slice)
emms_c();
}
static void horizontal_filter(unsigned char *first_pixel, int stride,
int *bounding_values)
{
unsigned char *end;
int filter_value;
for (end= first_pixel + 8*stride; first_pixel != end; first_pixel += stride) {
filter_value =
(first_pixel[-2] - first_pixel[ 1])
+3*(first_pixel[ 0] - first_pixel[-1]);
filter_value = bounding_values[(filter_value + 4) >> 3];
first_pixel[-1] = av_clip_uint8(first_pixel[-1] + filter_value);
first_pixel[ 0] = av_clip_uint8(first_pixel[ 0] - filter_value);
}
}
static void vertical_filter(unsigned char *first_pixel, int stride,
int *bounding_values)
{
unsigned char *end;
int filter_value;
const int nstride= -stride;
for (end= first_pixel + 8; first_pixel < end; first_pixel++) {
filter_value =
(first_pixel[2 * nstride] - first_pixel[ stride])
+3*(first_pixel[0 ] - first_pixel[nstride]);
filter_value = bounding_values[(filter_value + 4) >> 3];
first_pixel[nstride] = av_clip_uint8(first_pixel[nstride] + filter_value);
first_pixel[0] = av_clip_uint8(first_pixel[0] - filter_value);
}
}
static void apply_loop_filter(Vp3DecodeContext *s)
{
int plane;
@ -1569,7 +1530,7 @@ static void apply_loop_filter(Vp3DecodeContext *s)
/* do not perform left edge filter for left columns frags */
if ((x > 0) &&
(s->all_fragments[fragment].coding_method != MODE_COPY)) {
horizontal_filter(
s->dsp.vp3_h_loop_filter(
plane_data + s->all_fragments[fragment].first_pixel,
stride, bounding_values);
}
@ -1577,7 +1538,7 @@ static void apply_loop_filter(Vp3DecodeContext *s)
/* do not perform top edge filter for top row fragments */
if ((y > 0) &&
(s->all_fragments[fragment].coding_method != MODE_COPY)) {
vertical_filter(
s->dsp.vp3_v_loop_filter(
plane_data + s->all_fragments[fragment].first_pixel,
stride, bounding_values);
}
@ -1588,7 +1549,7 @@ static void apply_loop_filter(Vp3DecodeContext *s)
if ((x < width - 1) &&
(s->all_fragments[fragment].coding_method != MODE_COPY) &&
(s->all_fragments[fragment + 1].coding_method == MODE_COPY)) {
horizontal_filter(
s->dsp.vp3_h_loop_filter(
plane_data + s->all_fragments[fragment + 1].first_pixel,
stride, bounding_values);
}
@ -1599,7 +1560,7 @@ static void apply_loop_filter(Vp3DecodeContext *s)
if ((y < height - 1) &&
(s->all_fragments[fragment].coding_method != MODE_COPY) &&
(s->all_fragments[fragment + width].coding_method == MODE_COPY)) {
vertical_filter(
s->dsp.vp3_v_loop_filter(
plane_data + s->all_fragments[fragment + width].first_pixel,
stride, bounding_values);
}

31
libavcodec/vp3dsp.c
View File

@ -222,3 +222,34 @@ void ff_vp3_idct_put_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*
void ff_vp3_idct_add_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/){
idct(dest, line_size, block, 2);
}
void ff_vp3_v_loop_filter_c(uint8_t *first_pixel, int stride, int *bounding_values)
{
unsigned char *end;
int filter_value;
const int nstride= -stride;
for (end= first_pixel + 8; first_pixel < end; first_pixel++) {
filter_value =
(first_pixel[2 * nstride] - first_pixel[ stride])
+3*(first_pixel[0 ] - first_pixel[nstride]);
filter_value = bounding_values[(filter_value + 4) >> 3];
first_pixel[nstride] = av_clip_uint8(first_pixel[nstride] + filter_value);
first_pixel[0] = av_clip_uint8(first_pixel[0] - filter_value);
}
}
void ff_vp3_h_loop_filter_c(uint8_t *first_pixel, int stride, int *bounding_values)
{
unsigned char *end;
int filter_value;
for (end= first_pixel + 8*stride; first_pixel != end; first_pixel += stride) {
filter_value =
(first_pixel[-2] - first_pixel[ 1])
+3*(first_pixel[ 0] - first_pixel[-1]);
filter_value = bounding_values[(filter_value + 4) >> 3];
first_pixel[-1] = av_clip_uint8(first_pixel[-1] + filter_value);
first_pixel[ 0] = av_clip_uint8(first_pixel[ 0] - filter_value);
}
}