mirror of
https://github.com/FFmpeg/FFmpeg.git
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80 lines
2.9 KiB
C
80 lines
2.9 KiB
C
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/*
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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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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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}
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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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