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move ff_init_scantable() into dsputil

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Originally committed as revision 12311 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Aurelien Jacobs 2008-03-04 10:26:56 +00:00
parent 675b8390f6
commit 4c79b95c32
4 changed files with 39 additions and 37 deletions
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24
libavcodec/dsputil.c
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@ -152,6 +152,30 @@ static const uint8_t simple_mmx_permutation[64]={
0x32, 0x3A, 0x36, 0x3B, 0x33, 0x3E, 0x37, 0x3F,
};
void ff_init_scantable(uint8_t *permutation, ScanTable *st, const uint8_t *src_scantable){
int i;
int end;
st->scantable= src_scantable;
for(i=0; i<64; i++){
int j;
j = src_scantable[i];
st->permutated[i] = permutation[j];
#ifdef ARCH_POWERPC
st->inverse[j] = i;
#endif
}
end=-1;
for(i=0; i<64; i++){
int j;
j = st->permutated[i];
if(j>end) end=j;
st->raster_end[i]= end;
}
}
static int pix_sum_c(uint8_t * pix, int line_size)
{
int s, i, j;

15
libavcodec/dsputil.h
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@ -153,6 +153,21 @@ typedef int (*me_cmp_func)(void /*MpegEncContext*/ *s, uint8_t *blk1/*align widt
// for snow slices
typedef struct slice_buffer_s slice_buffer;
/**
* Scantable.
*/
typedef struct ScanTable{
const uint8_t *scantable;
uint8_t permutated[64];
uint8_t raster_end[64];
#ifdef ARCH_POWERPC
/** Used by dct_quantize_altivec to find last-non-zero */
DECLARE_ALIGNED_8(uint8_t, inverse[64]);
#endif
} ScanTable;
void ff_init_scantable(uint8_t *, ScanTable *st, const uint8_t *src_scantable);
/**
* DSPContext.
*/

23
libavcodec/mpegvideo.c
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@ -70,29 +70,6 @@ static const uint8_t ff_default_chroma_qscale_table[32]={
0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31
};
void ff_init_scantable(uint8_t *permutation, ScanTable *st, const uint8_t *src_scantable){
int i;
int end;
st->scantable= src_scantable;
for(i=0; i<64; i++){
int j;
j = src_scantable[i];
st->permutated[i] = permutation[j];
#ifdef ARCH_POWERPC
st->inverse[j] = i;
#endif
}
end=-1;
for(i=0; i<64; i++){
int j;
j = st->permutated[i];
if(j>end) end=j;
st->raster_end[i]= end;
}
}
const uint8_t *ff_find_start_code(const uint8_t * restrict p, const uint8_t *end, uint32_t * restrict state){
int i;

14
libavcodec/mpegvideo.h
View File

@ -86,19 +86,6 @@ enum OutputFormat {
#define EXT_START_CODE 0x000001b5
#define USER_START_CODE 0x000001b2
/**
* Scantable.
*/
typedef struct ScanTable{
const uint8_t *scantable;
uint8_t permutated[64];
uint8_t raster_end[64];
#ifdef ARCH_POWERPC
/** Used by dct_quantize_altivec to find last-non-zero */
DECLARE_ALIGNED_8(uint8_t, inverse[64]);
#endif
} ScanTable;
/**
* Picture.
*/
@ -707,7 +694,6 @@ void MPV_common_init_armv4l(MpegEncContext *s);
void MPV_common_init_altivec(MpegEncContext *s);
extern void (*draw_edges)(uint8_t *buf, int wrap, int width, int height, int w);
void ff_clean_intra_table_entries(MpegEncContext *s);
void ff_init_scantable(uint8_t *, ScanTable *st, const uint8_t *src_scantable);
void ff_draw_horiz_band(MpegEncContext *s, int y, int h);
void ff_emulated_edge_mc(uint8_t *buf, uint8_t *src, int linesize, int block_w, int block_h,
int src_x, int src_y, int w, int h);