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- /*
- * 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 == PIX_FMT_YUV420P && c->srcFormat == PIX_FMT_UYVY422) {
- av_log(NULL, AV_LOG_VERBOSE,
- "selecting Blackfin optimized uyvytoyv12_unscaled\n");
- c->swScale = uyvytoyv12_unscaled;
- }
- if (c->dstFormat == PIX_FMT_YUV420P && c->srcFormat == PIX_FMT_YUYV422) {
- av_log(NULL, AV_LOG_VERBOSE,
- "selecting Blackfin optimized yuyvtoyv12_unscaled\n");
- c->swScale = yuyvtoyv12_unscaled;
- }
- }
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