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90 lines
2.9 KiB
90 lines
2.9 KiB
/* |
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* V210 encoder DSP init |
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* |
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* Copyright (C) 2009 Michael Niedermayer <michaelni@gmx.at> |
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* Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot 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 AVCODEC_V210ENC_INIT_H |
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#define AVCODEC_V210ENC_INIT_H |
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#include <stddef.h> |
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#include <stdint.h> |
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#include "config.h" |
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#include "libavutil/attributes.h" |
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#include "libavutil/common.h" |
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#include "libavutil/intreadwrite.h" |
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#include "v210enc.h" |
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#define CLIP(v, depth) av_clip(v, 1<<(depth-8), ((1<<depth)-(1<<(depth-8))-1)) |
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#define WRITE_PIXELS(a, b, c, depth) \ |
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do { \ |
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val = CLIP(*a++, depth) << (10-depth); \ |
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val |= (CLIP(*b++, depth) << (20-depth)) | \ |
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(CLIP(*c++, depth) << (30-depth)); \ |
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AV_WL32(dst, val); \ |
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dst += 4; \ |
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} while (0) |
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static void v210_planar_pack_8_c(const uint8_t *y, const uint8_t *u, |
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const uint8_t *v, uint8_t *dst, |
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ptrdiff_t width) |
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{ |
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uint32_t val; |
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/* unroll this to match the assembly */ |
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for (int i = 0; i < width - 11; i += 12) { |
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WRITE_PIXELS(u, y, v, 8); |
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WRITE_PIXELS(y, u, y, 8); |
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WRITE_PIXELS(v, y, u, 8); |
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WRITE_PIXELS(y, v, y, 8); |
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WRITE_PIXELS(u, y, v, 8); |
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WRITE_PIXELS(y, u, y, 8); |
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WRITE_PIXELS(v, y, u, 8); |
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WRITE_PIXELS(y, v, y, 8); |
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} |
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} |
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static void v210_planar_pack_10_c(const uint16_t *y, const uint16_t *u, |
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const uint16_t *v, uint8_t *dst, |
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ptrdiff_t width) |
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{ |
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uint32_t val; |
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for (int i = 0; i < width - 5; i += 6) { |
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WRITE_PIXELS(u, y, v, 10); |
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WRITE_PIXELS(y, u, y, 10); |
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WRITE_PIXELS(v, y, u, 10); |
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WRITE_PIXELS(y, v, y, 10); |
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} |
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} |
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static av_cold av_unused void ff_v210enc_init(V210EncContext *s) |
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{ |
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s->pack_line_8 = v210_planar_pack_8_c; |
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s->pack_line_10 = v210_planar_pack_10_c; |
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s->sample_factor_8 = 2; |
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s->sample_factor_10 = 1; |
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if (ARCH_X86) |
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ff_v210enc_init_x86(s); |
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} |
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#endif /* AVCODEC_V210ENC_INIT_H */
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