mirror of https://git.ffmpeg.org/ffmpeg.git
84 lines
3.3 KiB
C
84 lines
3.3 KiB
C
/*
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* Copyright (c) 2016 Ronald S. Bultje <rsbultje@gmail.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVFILTER_COLORSPACEDSP_H
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#define AVFILTER_COLORSPACEDSP_H
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#include <stddef.h>
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#include <stdint.h>
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typedef void (*yuv2rgb_fn)(int16_t *rgb[3], ptrdiff_t rgb_stride,
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uint8_t *yuv[3], const ptrdiff_t yuv_stride[3],
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int w, int h, const int16_t yuv2rgb_coeffs[3][3][8],
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const int16_t yuv_offset[8]);
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typedef void (*rgb2yuv_fn)(uint8_t *yuv[3], const ptrdiff_t yuv_stride[3],
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int16_t *rgb[3], ptrdiff_t rgb_stride,
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int w, int h, const int16_t rgb2yuv_coeffs[3][3][8],
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const int16_t yuv_offset[8]);
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typedef void (*rgb2yuv_fsb_fn)(uint8_t *yuv[3], const ptrdiff_t yuv_stride[3],
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int16_t *rgb[3], ptrdiff_t rgb_stride,
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int w, int h, const int16_t rgb2yuv_coeffs[3][3][8],
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const int16_t yuv_offset[8],
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int *rnd[3][2]);
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typedef void (*yuv2yuv_fn)(uint8_t *yuv_out[3], const ptrdiff_t yuv_out_stride[3],
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uint8_t *yuv_in[3], const ptrdiff_t yuv_in_stride[3],
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int w, int h, const int16_t yuv2yuv_coeffs[3][3][8],
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const int16_t yuv_offset[2][8]);
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enum BitDepthIndex {
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BPP_8,
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BPP_10,
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BPP_12,
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NB_BPP,
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};
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enum ChromaSubsamplingIndex {
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SS_444,
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SS_422,
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SS_420,
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NB_SS,
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};
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typedef struct ColorSpaceDSPContext {
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/* Convert input YUV pixel buffer from a user into an internal, 15bpp array
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* of intermediate RGB data. */
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yuv2rgb_fn yuv2rgb[NB_BPP][NB_SS];
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/* Convert intermediate RGB data (15bpp, internal format) into YUV data and
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* store into user-provided output buffer */
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rgb2yuv_fn rgb2yuv[NB_BPP][NB_SS];
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/* Same as rgb2yuv(), but use floyd-steinberg dithering */
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rgb2yuv_fsb_fn rgb2yuv_fsb[NB_BPP][NB_SS];
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/* Direct yuv-to-yuv conversion (input and output are both user-provided
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* buffers) */
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yuv2yuv_fn yuv2yuv[NB_BPP /* in */][NB_BPP /* out */][NB_SS];
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/* In-place 3x3 matrix multiplication. Input and output are both 15bpp
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* (our internal data format) */
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void (*multiply3x3)(int16_t *data[3], ptrdiff_t stride,
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int w, int h, const int16_t m[3][3][8]);
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} ColorSpaceDSPContext;
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void ff_colorspacedsp_init(ColorSpaceDSPContext *dsp);
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/* internal */
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void ff_colorspacedsp_x86_init(ColorSpaceDSPContext *dsp);
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#endif /* AVFILTER_COLORSPACEDSP_H */
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