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93 lines
3.3 KiB
93 lines
3.3 KiB
/* |
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* Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com> |
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* |
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* Blackfin software video scaler operations |
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* |
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* This file is part of Libav. |
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* |
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* Libav 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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* Libav 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 Libav; 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 <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <inttypes.h> |
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#include <assert.h> |
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#include "config.h" |
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#include <unistd.h> |
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#include "libswscale/rgb2rgb.h" |
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#include "libswscale/swscale.h" |
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#include "libswscale/swscale_internal.h" |
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#if defined (__FDPIC__) && CONFIG_SRAM |
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#define L1CODE __attribute__((l1_text)) |
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#else |
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#define L1CODE |
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#endif |
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int ff_bfin_uyvytoyv12(const uint8_t *src, uint8_t *ydst, uint8_t *udst, |
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uint8_t *vdst, int width, int height, |
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int lumStride, int chromStride, int srcStride) L1CODE; |
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int ff_bfin_yuyvtoyv12(const uint8_t *src, uint8_t *ydst, uint8_t *udst, |
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uint8_t *vdst, int width, int height, |
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int lumStride, int chromStride, int srcStride) L1CODE; |
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static int uyvytoyv12_unscaled(SwsContext *c, uint8_t *src[], int srcStride[], |
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int srcSliceY, int srcSliceH, uint8_t *dst[], |
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int dstStride[]) |
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{ |
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uint8_t *dsty = dst[0] + dstStride[0] * srcSliceY; |
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uint8_t *dstu = dst[1] + dstStride[1] * srcSliceY / 2; |
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uint8_t *dstv = dst[2] + dstStride[2] * srcSliceY / 2; |
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uint8_t *ip = src[0] + srcStride[0] * srcSliceY; |
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int w = dstStride[0]; |
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ff_bfin_uyvytoyv12(ip, dsty, dstu, dstv, w, srcSliceH, |
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dstStride[0], dstStride[1], srcStride[0]); |
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return srcSliceH; |
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} |
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static int yuyvtoyv12_unscaled(SwsContext *c, uint8_t *src[], int srcStride[], |
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int srcSliceY, int srcSliceH, uint8_t *dst[], |
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int dstStride[]) |
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{ |
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uint8_t *dsty = dst[0] + dstStride[0] * srcSliceY; |
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uint8_t *dstu = dst[1] + dstStride[1] * srcSliceY / 2; |
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uint8_t *dstv = dst[2] + dstStride[2] * srcSliceY / 2; |
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uint8_t *ip = src[0] + srcStride[0] * srcSliceY; |
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int w = dstStride[0]; |
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ff_bfin_yuyvtoyv12(ip, dsty, dstu, dstv, w, srcSliceH, |
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dstStride[0], dstStride[1], srcStride[0]); |
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return srcSliceH; |
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} |
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void ff_bfin_get_unscaled_swscale(SwsContext *c) |
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{ |
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if (c->dstFormat == PIX_FMT_YUV420P && c->srcFormat == PIX_FMT_UYVY422) { |
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av_log(NULL, AV_LOG_VERBOSE, |
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"selecting Blackfin optimized uyvytoyv12_unscaled\n"); |
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c->swScale = uyvytoyv12_unscaled; |
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} |
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if (c->dstFormat == PIX_FMT_YUV420P && c->srcFormat == PIX_FMT_YUYV422) { |
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av_log(NULL, AV_LOG_VERBOSE, |
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"selecting Blackfin optimized yuyvtoyv12_unscaled\n"); |
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c->swScale = yuyvtoyv12_unscaled; |
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} |
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}
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