151 lines
8.0 KiB
C
151 lines
8.0 KiB
C
/*
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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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#if 0
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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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#endif
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#define DECLARE_FF_NVX_TO_RGBX_FUNCS(ifmt, ofmt, precision) \
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int ff_##ifmt##_to_##ofmt##_neon_##precision(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_##precision(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[] = { \
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c->yuv2rgb_v2r_coeff / ((precision) == 16 ? 1 << 7 : 1), \
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c->yuv2rgb_u2g_coeff / ((precision) == 16 ? 1 << 7 : 1), \
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c->yuv2rgb_v2g_coeff / ((precision) == 16 ? 1 << 7 : 1), \
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c->yuv2rgb_u2b_coeff / ((precision) == 16 ? 1 << 7 : 1), \
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}; \
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\
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ff_##ifmt##_to_##ofmt##_neon_##precision(c->srcW, srcSliceH, \
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dst[0] + srcSliceY * dstStride[0], dstStride[0], \
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src[0] + srcSliceY * srcStride[0], srcStride[0], \
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src[1] + (srcSliceY / 2) * srcStride[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 / ((precision) == 16 ? 1 << 7 : 1)); \
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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, precision) \
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DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, argb, precision) \
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DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, rgba, precision) \
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DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, abgr, precision) \
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DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, bgra, precision) \
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#define DECLARE_FF_NVX_TO_ALL_RGBX_ALL_PRECISION_FUNCS(nvx) \
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DECLARE_FF_NVX_TO_ALL_RGBX_FUNCS(nvx, 16) \
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DECLARE_FF_NVX_TO_ALL_RGBX_FUNCS(nvx, 32) \
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DECLARE_FF_NVX_TO_ALL_RGBX_ALL_PRECISION_FUNCS(nv12)
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DECLARE_FF_NVX_TO_ALL_RGBX_ALL_PRECISION_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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c->swscale = (accurate_rnd) ? ifmt##_to_##ofmt##_neon_wrapper_32 : \
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ifmt##_to_##ofmt##_neon_wrapper_16 ; \
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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 0
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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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#endif
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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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}
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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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