FFmpeg: libavcodec/arm/h264dsp_init_arm.c Source File

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h264dsp_init_arm.c

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1 /*

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 */

21 #include <stdint.h>

23 #include "libavutil/attributes.h"

24 #include "libavutil/arm/cpu.h"

25 #include "libavcodec/h264dsp.h"

27 int ff_h264_find_start_code_candidate_armv6(const uint8_t *buf, int size);

29 void ff_h264_v_loop_filter_luma_neon(uint8_t *pix, int stride, int alpha,

30 int beta, int8_t *tc0);

31 void ff_h264_h_loop_filter_luma_neon(uint8_t *pix, int stride, int alpha,

32 int beta, int8_t *tc0);

33 void ff_h264_v_loop_filter_chroma_neon(uint8_t *pix, int stride, int alpha,

34 int beta, int8_t *tc0);

35 void ff_h264_h_loop_filter_chroma_neon(uint8_t *pix, int stride, int alpha,

36 int beta, int8_t *tc0);

38 void ff_weight_h264_pixels_16_neon(uint8_t *dst, int stride, int height,

39 int log2_den, int weight, int offset);

40 void ff_weight_h264_pixels_8_neon(uint8_t *dst, int stride, int height,

41 int log2_den, int weight, int offset);

42 void ff_weight_h264_pixels_4_neon(uint8_t *dst, int stride, int height,

43 int log2_den, int weight, int offset);

45 void ff_biweight_h264_pixels_16_neon(uint8_t *dst, uint8_t *src, int stride,

46 int height, int log2_den, int weightd,

47 int weights, int offset);

48 void ff_biweight_h264_pixels_8_neon(uint8_t *dst, uint8_t *src, int stride,

49 int height, int log2_den, int weightd,

50 int weights, int offset);

51 void ff_biweight_h264_pixels_4_neon(uint8_t *dst, uint8_t *src, int stride,

52 int height, int log2_den, int weightd,

53 int weights, int offset);

55 void ff_h264_idct_add_neon(uint8_t *dst, int16_t *block, int stride);

56 void ff_h264_idct_dc_add_neon(uint8_t *dst, int16_t *block, int stride);

57 void ff_h264_idct_add16_neon(uint8_t *dst, const int *block_offset,

58 int16_t *block, int stride,

59 const uint8_t nnzc[6*8]);

60 void ff_h264_idct_add16intra_neon(uint8_t *dst, const int *block_offset,

61 int16_t *block, int stride,

62 const uint8_t nnzc[6*8]);

63 void ff_h264_idct_add8_neon(uint8_t **dest, const int *block_offset,

64 int16_t *block, int stride,

65 const uint8_t nnzc[6*8]);

67 void ff_h264_idct8_add_neon(uint8_t *dst, int16_t *block, int stride);

68 void ff_h264_idct8_dc_add_neon(uint8_t *dst, int16_t *block, int stride);

69 void ff_h264_idct8_add4_neon(uint8_t *dst, const int *block_offset,

70 int16_t *block, int stride,

71 const uint8_t nnzc[6*8]);

73 static av_cold void h264dsp_init_neon(H264DSPContext *c, const int bit_depth,

74 const int chroma_format_idc)

75 {

76 #if HAVE_NEON

77 if (bit_depth == 8) {

78 c->h264_v_loop_filter_luma = ff_h264_v_loop_filter_luma_neon;

79 c->h264_h_loop_filter_luma = ff_h264_h_loop_filter_luma_neon;

80 if(chroma_format_idc == 1){

81 c->h264_v_loop_filter_chroma = ff_h264_v_loop_filter_chroma_neon;

82 c->h264_h_loop_filter_chroma = ff_h264_h_loop_filter_chroma_neon;

83 }

85 c->weight_h264_pixels_tab[0] = ff_weight_h264_pixels_16_neon;

86 c->weight_h264_pixels_tab[1] = ff_weight_h264_pixels_8_neon;

87 c->weight_h264_pixels_tab[2] = ff_weight_h264_pixels_4_neon;

89 c->biweight_h264_pixels_tab[0] = ff_biweight_h264_pixels_16_neon;

90 c->biweight_h264_pixels_tab[1] = ff_biweight_h264_pixels_8_neon;

91 c->biweight_h264_pixels_tab[2] = ff_biweight_h264_pixels_4_neon;

93 c->h264_idct_add = ff_h264_idct_add_neon;

94 c->h264_idct_dc_add = ff_h264_idct_dc_add_neon;

95 c->h264_idct_add16 = ff_h264_idct_add16_neon;

96 c->h264_idct_add16intra = ff_h264_idct_add16intra_neon;

97 if (chroma_format_idc == 1)

98 c->h264_idct_add8 = ff_h264_idct_add8_neon;

99 c->h264_idct8_add = ff_h264_idct8_add_neon;

100 c->h264_idct8_dc_add = ff_h264_idct8_dc_add_neon;

101 c->h264_idct8_add4 = ff_h264_idct8_add4_neon;

102 }

103 #endif // HAVE_NEON

104 }

105

106 av_cold void ff_h264dsp_init_arm(H264DSPContext *c, const int bit_depth,

107 const int chroma_format_idc)

108 {

109 int cpu_flags = av_get_cpu_flags();

110

111 if (have_armv6(cpu_flags))

112 c->h264_find_start_code_candidate = ff_h264_find_start_code_candidate_armv6;

113 if (have_neon(cpu_flags))

114 h264dsp_init_neon(c, bit_depth, chroma_format_idc);

115 }

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