/* * Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com> * * Blackfin software video scaler operations * * 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 <stdint.h> #include "config.h" #include "libswscale/swscale_internal.h" #if defined (__FDPIC__) && CONFIG_SRAM #define L1CODE __attribute__((l1_text)) #else #define L1CODE #endif int ff_bfin_uyvytoyv12(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst, int width, int height, int lumStride, int chromStride, int srcStride) L1CODE; int ff_bfin_yuyvtoyv12(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst, int width, int height, int lumStride, int chromStride, int srcStride) L1CODE; static int uyvytoyv12_unscaled(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[]) { uint8_t *dsty = dst[0] + dstStride[0] * srcSliceY; uint8_t *dstu = dst[1] + dstStride[1] * srcSliceY / 2; uint8_t *dstv = dst[2] + dstStride[2] * srcSliceY / 2; const uint8_t *ip = src[0] + srcStride[0] * srcSliceY; int w = dstStride[0]; ff_bfin_uyvytoyv12(ip, dsty, dstu, dstv, w, srcSliceH, dstStride[0], dstStride[1], srcStride[0]); return srcSliceH; } static int yuyvtoyv12_unscaled(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[]) { uint8_t *dsty = dst[0] + dstStride[0] * srcSliceY; uint8_t *dstu = dst[1] + dstStride[1] * srcSliceY / 2; uint8_t *dstv = dst[2] + dstStride[2] * srcSliceY / 2; const uint8_t *ip = src[0] + srcStride[0] * srcSliceY; int w = dstStride[0]; ff_bfin_yuyvtoyv12(ip, dsty, dstu, dstv, w, srcSliceH, dstStride[0], dstStride[1], srcStride[0]); return srcSliceH; } void ff_bfin_get_unscaled_swscale(SwsContext *c) { if (c->dstFormat == AV_PIX_FMT_YUV420P && c->srcFormat == AV_PIX_FMT_UYVY422) { av_log(NULL, AV_LOG_VERBOSE, "selecting Blackfin optimized uyvytoyv12_unscaled\n"); c->swScale = uyvytoyv12_unscaled; } if (c->dstFormat == AV_PIX_FMT_YUV420P && c->srcFormat == AV_PIX_FMT_YUYV422) { av_log(NULL, AV_LOG_VERBOSE, "selecting Blackfin optimized yuyvtoyv12_unscaled\n"); c->swScale = yuyvtoyv12_unscaled; } }