FFmpeg: libavcodec/diracdsp.h Source File

diracdsp.h

1 /*

2  * Copyright (C) 2010 David Conrad

3  *

4  * This file is part of FFmpeg.

5  *

6  * FFmpeg is free software; you can redistribute it and/or

7  * modify it under the terms of the GNU Lesser General Public

8  * License as published by the Free Software Foundation; either

9  * version 2.1 of the License, or (at your option) any later version.

10  *

11  * FFmpeg is distributed in the hope that it will be useful,

12  * but WITHOUT ANY WARRANTY; without even the implied warranty of

13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

14  * Lesser General Public License for more details.

15  *

16  * You should have received a copy of the GNU Lesser General Public

17  * License along with FFmpeg; if not, write to the Free Software

18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

19  */

20 

21 #ifndef AVCODEC_DIRACDSP_H

22 #define AVCODEC_DIRACDSP_H

23 

24 #include <stdint.h>

25 

26  typedef void (*dirac_weight_func)(uint8_t *block, int stride, int log2_denom, int weight, int h);

27  typedef void (*dirac_biweight_func)(uint8_t *dst, const uint8_t *src, int stride, int log2_denom, int weightd, int weights, int h);

28 

29  typedef struct {

30   void (*dirac_hpel_filter)(uint8_t *dsth, uint8_t *dstv, uint8_t *dstc, const uint8_t *src, int stride, int width, int height);

31  /**

32  * dirac_pixels_tab[width][subpel]

33  * width is 2 for 32, 1 for 16, 0 for 8

34  * subpel is 0 for fpel and hpel (only need to copy from the first plane in src)

35  * 1 if an average of the first 2 planes is needed (TODO: worth it?)

36  * 2 for general qpel (avg of 4)

37  * 3 for general epel (biweight of 4 using the weights in src[4])

38  * src[0-3] is each of the hpel planes

39  * src[4] is the 1/8 pel weights if needed

40  */

41   void (*put_dirac_pixels_tab[3][4])(uint8_t *dst, const uint8_t *src[5], int stride, int h);

42   void (*avg_dirac_pixels_tab[3][4])(uint8_t *dst, const uint8_t *src[5], int stride, int h);

43 

44   void (*put_signed_rect_clamped)(uint8_t *dst/*align 16*/, int dst_stride, const int16_t *src /*align 16*/, int src_stride, int width, int height /*mod 2*/);

45   void (*put_rect_clamped)(uint8_t *dst/*align 16*/, int dst_stride, const int16_t *src /*align 16*/, int src_stride, int width, int height /*mod 2*/);

46   void (*add_rect_clamped)(uint8_t *dst/*align 16*/, const uint16_t *src /*align 16*/, int stride, const int16_t *idwt/*align 16*/, int idwt_stride, int width, int height /*mod 2*/);

47   void (*add_dirac_obmc[3])(uint16_t *dst, const uint8_t *src, int stride, const uint8_t *obmc_weight, int yblen);

48 

49   dirac_weight_func weight_dirac_pixels_tab[3];

50   dirac_biweight_func biweight_dirac_pixels_tab[3];

51 } DiracDSPContext;

52 

53  #define DECL_DIRAC_PIXOP(PFX, EXT) \

54  void ff_ ## PFX ## _dirac_pixels8_ ## EXT(uint8_t *dst, const uint8_t *src[5], int stride, int h); \

55  void ff_ ## PFX ## _dirac_pixels16_ ## EXT(uint8_t *dst, const uint8_t *src[5], int stride, int h); \

56  void ff_ ## PFX ## _dirac_pixels32_ ## EXT(uint8_t *dst, const uint8_t *src[5], int stride, int h)

57 

58 DECL_DIRAC_PIXOP(put, c);

59 DECL_DIRAC_PIXOP(avg, c);

60 DECL_DIRAC_PIXOP(put, l2_c);

61 DECL_DIRAC_PIXOP(avg, l2_c);

62 DECL_DIRAC_PIXOP(put, l4_c);

63 DECL_DIRAC_PIXOP(avg, l4_c);

64 

65 void ff_diracdsp_init(DiracDSPContext *c);

66 

67 #endif /* AVCODEC_DIRACDSP_H */