diff options
Diffstat (limited to 'libavcodec/dsputil.c')
| -rw-r--r-- | libavcodec/dsputil.c | 122 |
1 files changed, 116 insertions, 6 deletions
diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c index 553fb8c1cd..a13737d77e 100644 --- a/libavcodec/dsputil.c +++ b/libavcodec/dsputil.c @@ -381,6 +381,38 @@ void ff_put_pixels_clamped_c(const DCTELEM *block, uint8_t *restrict pixels, } } +static void put_pixels_clamped4_c(const DCTELEM *block, uint8_t *restrict pixels, + int line_size) +{ + int i; + + /* read the pixels */ + for(i=0;i<4;i++) { + pixels[0] = av_clip_uint8(block[0]); + pixels[1] = av_clip_uint8(block[1]); + pixels[2] = av_clip_uint8(block[2]); + pixels[3] = av_clip_uint8(block[3]); + + pixels += line_size; + block += 8; + } +} + +static void put_pixels_clamped2_c(const DCTELEM *block, uint8_t *restrict pixels, + int line_size) +{ + int i; + + /* read the pixels */ + for(i=0;i<2;i++) { + pixels[0] = av_clip_uint8(block[0]); + pixels[1] = av_clip_uint8(block[1]); + + pixels += line_size; + block += 8; + } +} + void ff_put_signed_pixels_clamped_c(const DCTELEM *block, uint8_t *restrict pixels, int line_size) @@ -422,6 +454,36 @@ void ff_add_pixels_clamped_c(const DCTELEM *block, uint8_t *restrict pixels, } } +static void add_pixels_clamped4_c(const DCTELEM *block, uint8_t *restrict pixels, + int line_size) +{ + int i; + + /* read the pixels */ + for(i=0;i<4;i++) { + pixels[0] = av_clip_uint8(pixels[0] + block[0]); + pixels[1] = av_clip_uint8(pixels[1] + block[1]); + pixels[2] = av_clip_uint8(pixels[2] + block[2]); + pixels[3] = av_clip_uint8(pixels[3] + block[3]); + pixels += line_size; + block += 8; + } +} + +static void add_pixels_clamped2_c(const DCTELEM *block, uint8_t *restrict pixels, + int line_size) +{ + int i; + + /* read the pixels */ + for(i=0;i<2;i++) { + pixels[0] = av_clip_uint8(pixels[0] + block[0]); + pixels[1] = av_clip_uint8(pixels[1] + block[1]); + pixels += line_size; + block += 8; + } +} + static int sum_abs_dctelem_c(DCTELEM *block) { int sum=0, i; @@ -2684,6 +2746,37 @@ 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 */ @@ -2750,12 +2843,28 @@ av_cold void ff_dsputil_init(DSPContext* c, AVCodecContext *avctx) } #endif //CONFIG_ENCODERS - 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->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->idct_algo==FF_IDCT_INT){ c->idct_put= ff_jref_idct_put; c->idct_add= ff_jref_idct_add; @@ -2786,6 +2895,7 @@ 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; |