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dsputil: create 16/32-bit dctcoef versions of some functions 

High bitdepth H.264 needs 32-bit transform coefficients, whereas
dnxhd does not.  This creates a conflict with the templated
functions operating on DCTELEM data.  This patch adds a field
allowing the caller to choose the element size in dsputil_init()
and adds the required functions.

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2011-07-21 12:39:41 +01:00
parent 0a72533e98
commit 5cc2600964
4 changed files with 80 additions and 56 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
libavcodec/dsputil.c
View File

@ -3159,13 +3159,13 @@ av_cold void dsputil_init(DSPContext* c, AVCodecContext *avctx)
c->PFX ## _pixels_tab[IDX][15] = FUNCC(PFX ## NUM ## _mc33, depth)
#define BIT_DEPTH_FUNCS(depth)\
#define BIT_DEPTH_FUNCS(depth, dct)\
c->draw_edges = FUNCC(draw_edges , depth);\
c->emulated_edge_mc = FUNC (ff_emulated_edge_mc , depth);\
c->clear_block = FUNCC(clear_block , depth);\
c->clear_blocks = FUNCC(clear_blocks , depth);\
c->add_pixels8 = FUNCC(add_pixels8 , depth);\
c->add_pixels4 = FUNCC(add_pixels4 , depth);\
c->clear_block = FUNCC(clear_block ## dct , depth);\
c->clear_blocks = FUNCC(clear_blocks ## dct , depth);\
c->add_pixels8 = FUNCC(add_pixels8 ## dct , depth);\
c->add_pixels4 = FUNCC(add_pixels4 ## dct , depth);\
c->put_no_rnd_pixels_l2[0] = FUNCC(put_no_rnd_pixels16_l2, depth);\
c->put_no_rnd_pixels_l2[1] = FUNCC(put_no_rnd_pixels8_l2 , depth);\
\
@ -3199,15 +3199,23 @@ av_cold void dsputil_init(DSPContext* c, AVCodecContext *avctx)
switch (avctx->bits_per_raw_sample) {
case 9:
BIT_DEPTH_FUNCS(9);
if (c->dct_bits == 32) {
BIT_DEPTH_FUNCS(9, _32);
} else {
BIT_DEPTH_FUNCS(9, _16);
}
break;
case 10:
BIT_DEPTH_FUNCS(10);
if (c->dct_bits == 32) {
BIT_DEPTH_FUNCS(10, _32);
} else {
BIT_DEPTH_FUNCS(10, _16);
}
break;
default:
av_log(avctx, AV_LOG_DEBUG, "Unsupported bit depth: %d\n", avctx->bits_per_raw_sample);
case 8:
BIT_DEPTH_FUNCS(8);
BIT_DEPTH_FUNCS(8, _16);
break;
}

5
libavcodec/dsputil.h
View File

@ -219,6 +219,11 @@ void ff_put_signed_pixels_clamped_c(const DCTELEM *block, uint8_t *dest, int lin
* DSPContext.
*/
typedef struct DSPContext {
/**
* Size of DCT coefficients.
*/
int dct_bits;
/* pixel ops : interface with DCT */
void (*get_pixels)(DCTELEM *block/*align 16*/, const uint8_t *pixels/*align 8*/, int line_size);
void (*diff_pixels)(DCTELEM *block/*align 16*/, const uint8_t *s1/*align 8*/, const uint8_t *s2/*align 8*/, int stride);

106
libavcodec/dsputil_template.c
View File

@ -192,43 +192,66 @@ void FUNC(ff_emulated_edge_mc)(uint8_t *buf, const uint8_t *src, int linesize, i
}
}
static void FUNCC(add_pixels8)(uint8_t *restrict _pixels, DCTELEM *_block, int line_size)
{
int i;
pixel *restrict pixels = (pixel *restrict)_pixels;
dctcoef *block = (dctcoef*)_block;
line_size /= sizeof(pixel);
for(i=0;i<8;i++) {
pixels[0] += block[0];
pixels[1] += block[1];
pixels[2] += block[2];
pixels[3] += block[3];
pixels[4] += block[4];
pixels[5] += block[5];
pixels[6] += block[6];
pixels[7] += block[7];
pixels += line_size;
block += 8;
}
#define DCTELEM_FUNCS(dctcoef, suffix) \
static void FUNCC(add_pixels8 ## suffix)(uint8_t *restrict _pixels, \
DCTELEM *_block, \
int line_size) \
{ \
int i; \
pixel *restrict pixels = (pixel *restrict)_pixels; \
dctcoef *block = (dctcoef*)_block; \
line_size /= sizeof(pixel); \
\
for(i=0;i<8;i++) { \
pixels[0] += block[0]; \
pixels[1] += block[1]; \
pixels[2] += block[2]; \
pixels[3] += block[3]; \
pixels[4] += block[4]; \
pixels[5] += block[5]; \
pixels[6] += block[6]; \
pixels[7] += block[7]; \
pixels += line_size; \
block += 8; \
} \
} \
\
static void FUNCC(add_pixels4 ## suffix)(uint8_t *restrict _pixels, \
DCTELEM *_block, \
int line_size) \
{ \
int i; \
pixel *restrict pixels = (pixel *restrict)_pixels; \
dctcoef *block = (dctcoef*)_block; \
line_size /= sizeof(pixel); \
\
for(i=0;i<4;i++) { \
pixels[0] += block[0]; \
pixels[1] += block[1]; \
pixels[2] += block[2]; \
pixels[3] += block[3]; \
pixels += line_size; \
block += 4; \
} \
} \
\
static void FUNCC(clear_block ## suffix)(DCTELEM *block) \
{ \
memset(block, 0, sizeof(dctcoef)*64); \
} \
\
/** \
* memset(blocks, 0, sizeof(DCTELEM)*6*64) \
*/ \
static void FUNCC(clear_blocks ## suffix)(DCTELEM *blocks) \
{ \
memset(blocks, 0, sizeof(dctcoef)*6*64); \
}
static void FUNCC(add_pixels4)(uint8_t *restrict _pixels, DCTELEM *_block, int line_size)
{
int i;
pixel *restrict pixels = (pixel *restrict)_pixels;
dctcoef *block = (dctcoef*)_block;
line_size /= sizeof(pixel);
for(i=0;i<4;i++) {
pixels[0] += block[0];
pixels[1] += block[1];
pixels[2] += block[2];
pixels[3] += block[3];
pixels += line_size;
block += 4;
}
}
DCTELEM_FUNCS(DCTELEM, _16)
#if BIT_DEPTH > 8
DCTELEM_FUNCS(dctcoef, _32)
#endif
#define PIXOP2(OPNAME, OP) \
static void FUNCC(OPNAME ## _pixels2)(uint8_t *block, const uint8_t *pixels, int line_size, int h){\
@ -1231,16 +1254,3 @@ void FUNCC(ff_put_pixels16x16)(uint8_t *dst, uint8_t *src, int stride) {
void FUNCC(ff_avg_pixels16x16)(uint8_t *dst, uint8_t *src, int stride) {
FUNCC(avg_pixels16)(dst, src, stride, 16);
}
static void FUNCC(clear_block)(DCTELEM *block)
{
memset(block, 0, sizeof(dctcoef)*64);
}
/**
* memset(blocks, 0, sizeof(DCTELEM)*6*64)
*/
static void FUNCC(clear_blocks)(DCTELEM *blocks)
{
memset(blocks, 0, sizeof(dctcoef)*6*64);
}

1
libavcodec/h264.c
View File

@ -3702,6 +3702,7 @@ static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size){
ff_h264dsp_init(&h->h264dsp, h->sps.bit_depth_luma);
ff_h264_pred_init(&h->hpc, s->codec_id, h->sps.bit_depth_luma);
s->dsp.dct_bits = h->sps.bit_depth_luma > 8 ? 32 : 16;
dsputil_init(&s->dsp, s->avctx);
} else {
av_log(avctx, AV_LOG_DEBUG, "Unsupported bit depth: %d\n", h->sps.bit_depth_luma);