FFmpeg: libavcodec/v210enc_init.h Source File

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v210enc_init.h

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1 /*

2 * V210 encoder DSP init

3 *

6 *

7 * This file is part of FFmpeg.

8 *

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

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

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

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

13 *

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

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

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

17 * Lesser General Public License for more details.

18 *

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

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

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

22 */

24 #ifndef AVCODEC_V210ENC_INIT_H

25 #define AVCODEC_V210ENC_INIT_H

27 #include <stddef.h>

28 #include <stdint.h>

30 #include "config.h"

31 #include "libavutil/attributes.h"

32 #include "libavutil/common.h"

33 #include "libavutil/intreadwrite.h"

34 #include "v210enc.h"

36 #define CLIP(v, depth) av_clip(v, 1<<(depth-8), ((1<<depth)-(1<<(depth-8))-1))

37 #define WRITE_PIXELS(a, b, c, depth) \

38 do { \

39 val = CLIP(*a++, depth) << (10-depth); \

40 val |= (CLIP(*b++, depth) << (20-depth)) | \

41 (CLIP(*c++, depth) << (30-depth)); \

42 AV_WL32(dst, val); \

43 dst += 4; \

44 } while (0)

46 static void v210_planar_pack_8_c(const uint8_t *y, const uint8_t *u,

47 const uint8_t *v, uint8_t *dst,

48 ptrdiff_t width)

49 {

50 uint32_t val;

52 /* unroll this to match the assembly */

53 for (int i = 0; i < width - 11; i += 12) {

54 WRITE_PIXELS(u, y, v, 8);

55 WRITE_PIXELS(y, u, y, 8);

56 WRITE_PIXELS(v, y, u, 8);

57 WRITE_PIXELS(y, v, y, 8);

58 WRITE_PIXELS(u, y, v, 8);

59 WRITE_PIXELS(y, u, y, 8);

60 WRITE_PIXELS(v, y, u, 8);

61 WRITE_PIXELS(y, v, y, 8);

62 }

63 }

65 static void v210_planar_pack_10_c(const uint16_t *y, const uint16_t *u,

66 const uint16_t *v, uint8_t *dst,

67 ptrdiff_t width)

68 {

69 uint32_t val;

71 for (int i = 0; i < width - 5; i += 6) {

72 WRITE_PIXELS(u, y, v, 10);

73 WRITE_PIXELS(y, u, y, 10);

74 WRITE_PIXELS(v, y, u, 10);

75 WRITE_PIXELS(y, v, y, 10);

76 }

77 }

79 static av_cold av_unused void ff_v210enc_init(V210EncContext *s)

80 {

81 s->pack_line_8 = v210_planar_pack_8_c;

82 s->pack_line_10 = v210_planar_pack_10_c;

83 s->sample_factor_8 = 2;

84 s->sample_factor_10 = 1;

86 #if ARCH_X86

87 ff_v210enc_init_x86(s);

88 #endif

89 }

91 #endif /* AVCODEC_V210ENC_INIT_H */

#define u(width, name, range_min, range_max)

Definition: cbs_h2645.c:251

av_unused

#define av_unused

Definition: attributes.h:131

val

static double val(void *priv, double ch)

Definition: aeval.c:77

av_cold

#define av_cold

Definition: attributes.h:90

intreadwrite.h

#define s(width, name)

Definition: cbs_vp9.c:198

v210enc.h

V210EncContext

Definition: v210enc.h:26

WRITE_PIXELS

#define WRITE_PIXELS(a, b, c, depth)

Definition: v210enc_init.h:37

dst

uint8_t ptrdiff_t const uint8_t ptrdiff_t int intptr_t intptr_t int int16_t * dst

Definition: dsp.h:83

attributes.h

#define i(width, name, range_min, range_max)

Definition: cbs_h2645.c:256

common.h

ff_v210enc_init_x86

void ff_v210enc_init_x86(V210EncContext *s)

Definition: v210enc_init.c:47

ff_v210enc_init

static av_cold av_unused void ff_v210enc_init(V210EncContext *s)

Definition: v210enc_init.h:79

v210_planar_pack_10_c

static void v210_planar_pack_10_c(const uint16_t *y, const uint16_t *u, const uint16_t *v, uint8_t *dst, ptrdiff_t width)

Definition: v210enc_init.h:65

v210_planar_pack_8_c

static void v210_planar_pack_8_c(const uint8_t *y, const uint8_t *u, const uint8_t *v, uint8_t *dst, ptrdiff_t width)

Definition: v210enc_init.h:46

width

#define width

Definition: dsp.h:85

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