/* * Copyright (C) 2013 Xiaolei Yu * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "config.h" #include "libswscale/swscale.h" #include "libswscale/swscale_internal.h" #include "libavutil/arm/cpu.h" extern void rgbx_to_nv12_neon_32(const uint8_t *src, uint8_t *y, uint8_t *chroma, int width, int height, int y_stride, int c_stride, int src_stride, int32_t coeff_tbl[9]); extern void rgbx_to_nv12_neon_16(const uint8_t *src, uint8_t *y, uint8_t *chroma, int width, int height, int y_stride, int c_stride, int src_stride, int32_t coeff_tbl[9]); static int rgbx_to_nv12_neon_32_wrapper(SwsContext *context, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[]) { rgbx_to_nv12_neon_32(src[0] + srcSliceY * srcStride[0], dst[0] + srcSliceY * dstStride[0], dst[1] + (srcSliceY / 2) * dstStride[1], context->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0], context->input_rgb2yuv_table); return 0; } static int rgbx_to_nv12_neon_16_wrapper(SwsContext *context, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[]) { rgbx_to_nv12_neon_16(src[0] + srcSliceY * srcStride[0], dst[0] + srcSliceY * dstStride[0], dst[1] + (srcSliceY / 2) * dstStride[1], context->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0], context->input_rgb2yuv_table); return 0; } #define YUV_TO_RGB_TABLE \ c->yuv2rgb_v2r_coeff / (1 << 7), \ c->yuv2rgb_u2g_coeff / (1 << 7), \ c->yuv2rgb_v2g_coeff / (1 << 7), \ c->yuv2rgb_u2b_coeff / (1 << 7), \ #define DECLARE_FF_YUVX_TO_RGBX_FUNCS(ifmt, ofmt) \ int ff_##ifmt##_to_##ofmt##_neon(int w, int h, \ uint8_t *dst, int linesize, \ const uint8_t *srcY, int linesizeY, \ const uint8_t *srcU, int linesizeU, \ const uint8_t *srcV, int linesizeV, \ const int16_t *table, \ int y_offset, \ int y_coeff); \ \ static int ifmt##_to_##ofmt##_neon_wrapper(SwsContext *c, const uint8_t *src[], \ int srcStride[], int srcSliceY, int srcSliceH, \ uint8_t *dst[], int dstStride[]) { \ const int16_t yuv2rgb_table[] = { YUV_TO_RGB_TABLE }; \ \ ff_##ifmt##_to_##ofmt##_neon(c->srcW, srcSliceH, \ dst[0] + srcSliceY * dstStride[0], dstStride[0], \ src[0], srcStride[0], \ src[1], srcStride[1], \ src[2], srcStride[2], \ yuv2rgb_table, \ c->yuv2rgb_y_offset >> 9, \ c->yuv2rgb_y_coeff / (1 << 7)); \ \ return 0; \ } \ #define DECLARE_FF_YUVX_TO_ALL_RGBX_FUNCS(yuvx) \ DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, argb) \ DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, rgba) \ DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, abgr) \ DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, bgra) \ DECLARE_FF_YUVX_TO_ALL_RGBX_FUNCS(yuv420p) DECLARE_FF_YUVX_TO_ALL_RGBX_FUNCS(yuv422p) #define DECLARE_FF_NVX_TO_RGBX_FUNCS(ifmt, ofmt) \ int ff_##ifmt##_to_##ofmt##_neon(int w, int h, \ uint8_t *dst, int linesize, \ const uint8_t *srcY, int linesizeY, \ const uint8_t *srcC, int linesizeC, \ const int16_t *table, \ int y_offset, \ int y_coeff); \ \ static int ifmt##_to_##ofmt##_neon_wrapper(SwsContext *c, const uint8_t *src[], \ int srcStride[], int srcSliceY, int srcSliceH, \ uint8_t *dst[], int dstStride[]) { \ const int16_t yuv2rgb_table[] = { YUV_TO_RGB_TABLE }; \ \ ff_##ifmt##_to_##ofmt##_neon(c->srcW, srcSliceH, \ dst[0] + srcSliceY * dstStride[0], dstStride[0], \ src[0], srcStride[0], src[1], srcStride[1], \ yuv2rgb_table, \ c->yuv2rgb_y_offset >> 9, \ c->yuv2rgb_y_coeff / (1 << 7)); \ \ return 0; \ } \ #define DECLARE_FF_NVX_TO_ALL_RGBX_FUNCS(nvx) \ DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, argb) \ DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, rgba) \ DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, abgr) \ DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, bgra) \ DECLARE_FF_NVX_TO_ALL_RGBX_FUNCS(nv12) DECLARE_FF_NVX_TO_ALL_RGBX_FUNCS(nv21) /* We need a 16 pixel width alignment. This constraint can easily be removed * for input reading but for the output which is 4-bytes per pixel (RGBA) the * assembly might be writing as much as 4*15=60 extra bytes at the end of the * line, which won't fit the 32-bytes buffer alignment. */ #define SET_FF_NVX_TO_RGBX_FUNC(ifmt, IFMT, ofmt, OFMT, accurate_rnd) do { \ if (c->srcFormat == AV_PIX_FMT_##IFMT \ && c->dstFormat == AV_PIX_FMT_##OFMT \ && !(c->srcH & 1) \ && !(c->srcW & 15) \ && !accurate_rnd) { \ c->swscale = ifmt##_to_##ofmt##_neon_wrapper; \ } \ } while (0) #define SET_FF_NVX_TO_ALL_RGBX_FUNC(nvx, NVX, accurate_rnd) do { \ SET_FF_NVX_TO_RGBX_FUNC(nvx, NVX, argb, ARGB, accurate_rnd); \ SET_FF_NVX_TO_RGBX_FUNC(nvx, NVX, rgba, RGBA, accurate_rnd); \ SET_FF_NVX_TO_RGBX_FUNC(nvx, NVX, abgr, ABGR, accurate_rnd); \ SET_FF_NVX_TO_RGBX_FUNC(nvx, NVX, bgra, BGRA, accurate_rnd); \ } while (0) static void get_unscaled_swscale_neon(SwsContext *c) { int accurate_rnd = c->flags & SWS_ACCURATE_RND; if (c->srcFormat == AV_PIX_FMT_RGBA && c->dstFormat == AV_PIX_FMT_NV12 && (c->srcW >= 16)) { c->swscale = accurate_rnd ? rgbx_to_nv12_neon_32_wrapper : rgbx_to_nv12_neon_16_wrapper; } SET_FF_NVX_TO_ALL_RGBX_FUNC(nv12, NV12, accurate_rnd); SET_FF_NVX_TO_ALL_RGBX_FUNC(nv21, NV21, accurate_rnd); SET_FF_NVX_TO_ALL_RGBX_FUNC(yuv420p, YUV420P, accurate_rnd); SET_FF_NVX_TO_ALL_RGBX_FUNC(yuv422p, YUV422P, accurate_rnd); } void ff_get_unscaled_swscale_arm(SwsContext *c) { int cpu_flags = av_get_cpu_flags(); if (have_neon(cpu_flags)) get_unscaled_swscale_neon(c); }