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Remove lowres video decoding

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This feature is complex, of questionable utility, and slows down
normal decoding.

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard
2012-04-12 13:55:49 +01:00
parent 95510be8c3
commit 2bcbd98459
34 changed files with 56 additions and 755 deletions
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60
libavcodec/dsputil.c
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@@ -2700,37 +2700,6 @@ static void ff_jref_idct_add(uint8_t *dest, int line_size, DCTELEM *block)
ff_add_pixels_clamped_c(block, dest, line_size);
}
static void ff_jref_idct4_put(uint8_t *dest, int line_size, DCTELEM *block)
{
ff_j_rev_dct4 (block);
put_pixels_clamped4_c(block, dest, line_size);
}
static void ff_jref_idct4_add(uint8_t *dest, int line_size, DCTELEM *block)
{
ff_j_rev_dct4 (block);
add_pixels_clamped4_c(block, dest, line_size);
}
static void ff_jref_idct2_put(uint8_t *dest, int line_size, DCTELEM *block)
{
ff_j_rev_dct2 (block);
put_pixels_clamped2_c(block, dest, line_size);
}
static void ff_jref_idct2_add(uint8_t *dest, int line_size, DCTELEM *block)
{
ff_j_rev_dct2 (block);
add_pixels_clamped2_c(block, dest, line_size);
}
static void ff_jref_idct1_put(uint8_t *dest, int line_size, DCTELEM *block)
{
dest[0] = av_clip_uint8((block[0] + 4)>>3);
}
static void ff_jref_idct1_add(uint8_t *dest, int line_size, DCTELEM *block)
{
dest[0] = av_clip_uint8(dest[0] + ((block[0] + 4)>>3));
}
static void just_return(void *mem av_unused, int stride av_unused, int h av_unused) { return; }
/* init static data */
@@ -2797,28 +2766,12 @@ av_cold void ff_dsputil_init(DSPContext* c, AVCodecContext *avctx)
}
#endif //CONFIG_ENCODERS
if(avctx->lowres==1){
c->idct_put= ff_jref_idct4_put;
c->idct_add= ff_jref_idct4_add;
c->idct = ff_j_rev_dct4;
c->idct_permutation_type= FF_NO_IDCT_PERM;
}else if(avctx->lowres==2){
c->idct_put= ff_jref_idct2_put;
c->idct_add= ff_jref_idct2_add;
c->idct = ff_j_rev_dct2;
c->idct_permutation_type= FF_NO_IDCT_PERM;
}else if(avctx->lowres==3){
c->idct_put= ff_jref_idct1_put;
c->idct_add= ff_jref_idct1_add;
c->idct = ff_j_rev_dct1;
c->idct_permutation_type= FF_NO_IDCT_PERM;
}else{
if (avctx->bits_per_raw_sample == 10) {
c->idct_put = ff_simple_idct_put_10;
c->idct_add = ff_simple_idct_add_10;
c->idct = ff_simple_idct_10;
c->idct_permutation_type = FF_NO_IDCT_PERM;
} else {
if (avctx->bits_per_raw_sample == 10) {
c->idct_put = ff_simple_idct_put_10;
c->idct_add = ff_simple_idct_add_10;
c->idct = ff_simple_idct_10;
c->idct_permutation_type = FF_NO_IDCT_PERM;
} else {
if(avctx->idct_algo==FF_IDCT_INT){
c->idct_put= ff_jref_idct_put;
c->idct_add= ff_jref_idct_add;
@@ -2849,7 +2802,6 @@ av_cold void ff_dsputil_init(DSPContext* c, AVCodecContext *avctx)
c->idct = ff_simple_idct_8;
c->idct_permutation_type= FF_NO_IDCT_PERM;
}
}
}
c->diff_pixels = diff_pixels_c;