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180 lines
11 KiB
180 lines
11 KiB
/* |
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* Copyright (C) 2013 Xiaolei Yu <dreifachstein@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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#include "config.h" |
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#include "libswscale/swscale.h" |
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#include "libswscale/swscale_internal.h" |
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#include "libavutil/arm/cpu.h" |
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extern void rgbx_to_nv12_neon_32(const uint8_t *src, uint8_t *y, uint8_t *chroma, |
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int width, int height, |
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int y_stride, int c_stride, int src_stride, |
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int32_t coeff_tbl[9]); |
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extern void rgbx_to_nv12_neon_16(const uint8_t *src, uint8_t *y, uint8_t *chroma, |
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int width, int height, |
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int y_stride, int c_stride, int src_stride, |
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int32_t coeff_tbl[9]); |
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static int rgbx_to_nv12_neon_32_wrapper(SwsContext *context, const uint8_t *src[], |
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int srcStride[], int srcSliceY, int srcSliceH, |
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uint8_t *dst[], int dstStride[]) { |
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rgbx_to_nv12_neon_32(src[0] + srcSliceY * srcStride[0], |
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dst[0] + srcSliceY * dstStride[0], |
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dst[1] + (srcSliceY / 2) * dstStride[1], |
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context->srcW, srcSliceH, |
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dstStride[0], dstStride[1], srcStride[0], |
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context->input_rgb2yuv_table); |
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return 0; |
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} |
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static int rgbx_to_nv12_neon_16_wrapper(SwsContext *context, const uint8_t *src[], |
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int srcStride[], int srcSliceY, int srcSliceH, |
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uint8_t *dst[], int dstStride[]) { |
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rgbx_to_nv12_neon_16(src[0] + srcSliceY * srcStride[0], |
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dst[0] + srcSliceY * dstStride[0], |
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dst[1] + (srcSliceY / 2) * dstStride[1], |
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context->srcW, srcSliceH, |
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dstStride[0], dstStride[1], srcStride[0], |
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context->input_rgb2yuv_table); |
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return 0; |
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} |
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#define YUV_TO_RGB_TABLE \ |
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c->yuv2rgb_v2r_coeff / (1 << 7), \ |
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c->yuv2rgb_u2g_coeff / (1 << 7), \ |
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c->yuv2rgb_v2g_coeff / (1 << 7), \ |
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c->yuv2rgb_u2b_coeff / (1 << 7), \ |
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#define DECLARE_FF_YUVX_TO_RGBX_FUNCS(ifmt, ofmt) \ |
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int ff_##ifmt##_to_##ofmt##_neon(int w, int h, \ |
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uint8_t *dst, int linesize, \ |
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const uint8_t *srcY, int linesizeY, \ |
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const uint8_t *srcU, int linesizeU, \ |
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const uint8_t *srcV, int linesizeV, \ |
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const int16_t *table, \ |
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int y_offset, \ |
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int y_coeff); \ |
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\ |
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static int ifmt##_to_##ofmt##_neon_wrapper(SwsContext *c, const uint8_t *src[], \ |
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int srcStride[], int srcSliceY, int srcSliceH, \ |
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uint8_t *dst[], int dstStride[]) { \ |
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const int16_t yuv2rgb_table[] = { YUV_TO_RGB_TABLE }; \ |
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\ |
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ff_##ifmt##_to_##ofmt##_neon(c->srcW, srcSliceH, \ |
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dst[0] + srcSliceY * dstStride[0], dstStride[0], \ |
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src[0], srcStride[0], \ |
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src[1], srcStride[1], \ |
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src[2], srcStride[2], \ |
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yuv2rgb_table, \ |
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c->yuv2rgb_y_offset >> 9, \ |
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c->yuv2rgb_y_coeff / (1 << 7)); \ |
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\ |
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return 0; \ |
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} \ |
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#define DECLARE_FF_YUVX_TO_ALL_RGBX_FUNCS(yuvx) \ |
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DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, argb) \ |
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DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, rgba) \ |
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DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, abgr) \ |
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DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, bgra) \ |
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DECLARE_FF_YUVX_TO_ALL_RGBX_FUNCS(yuv420p) |
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DECLARE_FF_YUVX_TO_ALL_RGBX_FUNCS(yuv422p) |
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#define DECLARE_FF_NVX_TO_RGBX_FUNCS(ifmt, ofmt) \ |
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int ff_##ifmt##_to_##ofmt##_neon(int w, int h, \ |
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uint8_t *dst, int linesize, \ |
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const uint8_t *srcY, int linesizeY, \ |
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const uint8_t *srcC, int linesizeC, \ |
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const int16_t *table, \ |
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int y_offset, \ |
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int y_coeff); \ |
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\ |
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static int ifmt##_to_##ofmt##_neon_wrapper(SwsContext *c, const uint8_t *src[], \ |
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int srcStride[], int srcSliceY, int srcSliceH, \ |
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uint8_t *dst[], int dstStride[]) { \ |
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const int16_t yuv2rgb_table[] = { YUV_TO_RGB_TABLE }; \ |
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\ |
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ff_##ifmt##_to_##ofmt##_neon(c->srcW, srcSliceH, \ |
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dst[0] + srcSliceY * dstStride[0], dstStride[0], \ |
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src[0], srcStride[0], src[1], srcStride[1], \ |
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yuv2rgb_table, \ |
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c->yuv2rgb_y_offset >> 9, \ |
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c->yuv2rgb_y_coeff / (1 << 7)); \ |
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\ |
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return 0; \ |
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} \ |
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#define DECLARE_FF_NVX_TO_ALL_RGBX_FUNCS(nvx) \ |
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DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, argb) \ |
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DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, rgba) \ |
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DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, abgr) \ |
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DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, bgra) \ |
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DECLARE_FF_NVX_TO_ALL_RGBX_FUNCS(nv12) |
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DECLARE_FF_NVX_TO_ALL_RGBX_FUNCS(nv21) |
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/* We need a 16 pixel width alignment. This constraint can easily be removed |
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* for input reading but for the output which is 4-bytes per pixel (RGBA) the |
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* assembly might be writing as much as 4*15=60 extra bytes at the end of the |
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* line, which won't fit the 32-bytes buffer alignment. */ |
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#define SET_FF_NVX_TO_RGBX_FUNC(ifmt, IFMT, ofmt, OFMT, accurate_rnd) do { \ |
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if (c->srcFormat == AV_PIX_FMT_##IFMT \ |
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&& c->dstFormat == AV_PIX_FMT_##OFMT \ |
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&& !(c->srcH & 1) \ |
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&& !(c->srcW & 15) \ |
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&& !accurate_rnd) { \ |
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c->swscale = ifmt##_to_##ofmt##_neon_wrapper; \ |
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} \ |
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} while (0) |
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#define SET_FF_NVX_TO_ALL_RGBX_FUNC(nvx, NVX, accurate_rnd) do { \ |
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SET_FF_NVX_TO_RGBX_FUNC(nvx, NVX, argb, ARGB, accurate_rnd); \ |
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SET_FF_NVX_TO_RGBX_FUNC(nvx, NVX, rgba, RGBA, accurate_rnd); \ |
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SET_FF_NVX_TO_RGBX_FUNC(nvx, NVX, abgr, ABGR, accurate_rnd); \ |
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SET_FF_NVX_TO_RGBX_FUNC(nvx, NVX, bgra, BGRA, accurate_rnd); \ |
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} while (0) |
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static void get_unscaled_swscale_neon(SwsContext *c) { |
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int accurate_rnd = c->flags & SWS_ACCURATE_RND; |
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if (c->srcFormat == AV_PIX_FMT_RGBA |
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&& c->dstFormat == AV_PIX_FMT_NV12 |
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&& (c->srcW >= 16)) { |
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c->swscale = accurate_rnd ? rgbx_to_nv12_neon_32_wrapper |
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: rgbx_to_nv12_neon_16_wrapper; |
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} |
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SET_FF_NVX_TO_ALL_RGBX_FUNC(nv12, NV12, accurate_rnd); |
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SET_FF_NVX_TO_ALL_RGBX_FUNC(nv21, NV21, accurate_rnd); |
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SET_FF_NVX_TO_ALL_RGBX_FUNC(yuv420p, YUV420P, accurate_rnd); |
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SET_FF_NVX_TO_ALL_RGBX_FUNC(yuv422p, YUV422P, accurate_rnd); |
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} |
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void ff_get_unscaled_swscale_arm(SwsContext *c) |
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{ |
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int cpu_flags = av_get_cpu_flags(); |
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if (have_neon(cpu_flags)) |
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get_unscaled_swscale_neon(c); |
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}
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