/* * Copyright (C) 2013 Xiaolei Yu <dreifachstein@gmail.com> * * 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; } 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; } } 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); }