blob: a81e4f0a52925a75c774ddbdf9187f19e8f00882
| 1 | /* |
| 2 | * Copyright (c) 2016 Ronald S. Bultje <rsbultje@gmail.com> |
| 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 AVFILTER_COLORSPACEDSP_H |
| 22 | #define AVFILTER_COLORSPACEDSP_H |
| 23 | |
| 24 | #include <stddef.h> |
| 25 | #include <stdint.h> |
| 26 | |
| 27 | typedef void (*yuv2rgb_fn)(int16_t *rgb[3], ptrdiff_t rgb_stride, |
| 28 | uint8_t *yuv[3], const ptrdiff_t yuv_stride[3], |
| 29 | int w, int h, const int16_t yuv2rgb_coeffs[3][3][8], |
| 30 | const int16_t yuv_offset[8]); |
| 31 | typedef void (*rgb2yuv_fn)(uint8_t *yuv[3], const ptrdiff_t yuv_stride[3], |
| 32 | int16_t *rgb[3], ptrdiff_t rgb_stride, |
| 33 | int w, int h, const int16_t rgb2yuv_coeffs[3][3][8], |
| 34 | const int16_t yuv_offset[8]); |
| 35 | typedef void (*rgb2yuv_fsb_fn)(uint8_t *yuv[3], const ptrdiff_t yuv_stride[3], |
| 36 | int16_t *rgb[3], ptrdiff_t rgb_stride, |
| 37 | int w, int h, const int16_t rgb2yuv_coeffs[3][3][8], |
| 38 | const int16_t yuv_offset[8], |
| 39 | int *rnd[3][2]); |
| 40 | typedef void (*yuv2yuv_fn)(uint8_t *yuv_out[3], const ptrdiff_t yuv_out_stride[3], |
| 41 | uint8_t *yuv_in[3], const ptrdiff_t yuv_in_stride[3], |
| 42 | int w, int h, const int16_t yuv2yuv_coeffs[3][3][8], |
| 43 | const int16_t yuv_offset[2][8]); |
| 44 | |
| 45 | enum BitDepthIndex { |
| 46 | BPP_8, |
| 47 | BPP_10, |
| 48 | BPP_12, |
| 49 | NB_BPP, |
| 50 | }; |
| 51 | |
| 52 | enum ChromaSubsamplingIndex { |
| 53 | SS_444, |
| 54 | SS_422, |
| 55 | SS_420, |
| 56 | NB_SS, |
| 57 | }; |
| 58 | |
| 59 | typedef struct ColorSpaceDSPContext { |
| 60 | /* Convert input YUV pixel buffer from a user into an internal, 15bpp array |
| 61 | * of intermediate RGB data. */ |
| 62 | yuv2rgb_fn yuv2rgb[NB_BPP][NB_SS]; |
| 63 | /* Convert intermediate RGB data (15bpp, internal format) into YUV data and |
| 64 | * store into user-provided output buffer */ |
| 65 | rgb2yuv_fn rgb2yuv[NB_BPP][NB_SS]; |
| 66 | /* Same as rgb2yuv(), but use floyd-steinberg dithering */ |
| 67 | rgb2yuv_fsb_fn rgb2yuv_fsb[NB_BPP][NB_SS]; |
| 68 | /* Direct yuv-to-yuv conversion (input and output are both user-provided |
| 69 | * buffers) */ |
| 70 | yuv2yuv_fn yuv2yuv[NB_BPP /* in */][NB_BPP /* out */][NB_SS]; |
| 71 | |
| 72 | /* In-place 3x3 matrix multiplication. Input and output are both 15bpp |
| 73 | * (our internal data format) */ |
| 74 | void (*multiply3x3)(int16_t *data[3], ptrdiff_t stride, |
| 75 | int w, int h, const int16_t m[3][3][8]); |
| 76 | } ColorSpaceDSPContext; |
| 77 | |
| 78 | void ff_colorspacedsp_init(ColorSpaceDSPContext *dsp); |
| 79 | |
| 80 | /* internal */ |
| 81 | void ff_colorspacedsp_x86_init(ColorSpaceDSPContext *dsp); |
| 82 | |
| 83 | #endif /* AVFILTER_COLORSPACEDSP_H */ |
| 84 |