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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6148 | serge | 1 | /* |
| 2 | * Copyright (C) 2007 Marc Hoffman |
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| 3 | * |
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| 4 | * Blackfin software video scaler operations |
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| 5 | * |
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| 6 | * This file is part of FFmpeg. |
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| 7 | * |
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| 8 | * FFmpeg is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU Lesser General Public |
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| 10 | * License as published by the Free Software Foundation; either |
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| 11 | * version 2.1 of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * FFmpeg is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 16 | * Lesser General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU Lesser General Public |
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| 19 | * License along with FFmpeg; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 21 | */ |
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| 22 | |||
| 23 | #include |
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| 24 | |||
| 25 | #include "config.h" |
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| 26 | #include "libavutil/attributes.h" |
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| 27 | #include "libswscale/swscale_internal.h" |
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| 28 | |||
| 29 | #if defined (__FDPIC__) && CONFIG_SRAM |
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| 30 | #define L1CODE __attribute__((l1_text)) |
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| 31 | #else |
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| 32 | #define L1CODE |
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| 33 | #endif |
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| 34 | |||
| 35 | int ff_bfin_uyvytoyv12(const uint8_t *src, uint8_t *ydst, uint8_t *udst, |
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| 36 | uint8_t *vdst, int width, int height, |
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| 37 | int lumStride, int chromStride, int srcStride) L1CODE; |
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| 38 | |||
| 39 | int ff_bfin_yuyvtoyv12(const uint8_t *src, uint8_t *ydst, uint8_t *udst, |
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| 40 | uint8_t *vdst, int width, int height, |
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| 41 | int lumStride, int chromStride, int srcStride) L1CODE; |
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| 42 | |||
| 43 | static int uyvytoyv12_unscaled(SwsContext *c, const uint8_t *src[], |
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| 44 | int srcStride[], int srcSliceY, int srcSliceH, |
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| 45 | uint8_t *dst[], int dstStride[]) |
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| 46 | { |
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| 47 | uint8_t *dsty = dst[0] + dstStride[0] * srcSliceY; |
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| 48 | uint8_t *dstu = dst[1] + dstStride[1] * srcSliceY / 2; |
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| 49 | uint8_t *dstv = dst[2] + dstStride[2] * srcSliceY / 2; |
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| 50 | const uint8_t *ip = src[0] + srcStride[0] * srcSliceY; |
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| 51 | int w = dstStride[0]; |
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| 52 | |||
| 53 | ff_bfin_uyvytoyv12(ip, dsty, dstu, dstv, w, srcSliceH, |
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| 54 | dstStride[0], dstStride[1], srcStride[0]); |
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| 55 | |||
| 56 | return srcSliceH; |
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| 57 | } |
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| 58 | |||
| 59 | static int yuyvtoyv12_unscaled(SwsContext *c, const uint8_t *src[], |
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| 60 | int srcStride[], int srcSliceY, int srcSliceH, |
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| 61 | uint8_t *dst[], int dstStride[]) |
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| 62 | { |
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| 63 | uint8_t *dsty = dst[0] + dstStride[0] * srcSliceY; |
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| 64 | uint8_t *dstu = dst[1] + dstStride[1] * srcSliceY / 2; |
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| 65 | uint8_t *dstv = dst[2] + dstStride[2] * srcSliceY / 2; |
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| 66 | const uint8_t *ip = src[0] + srcStride[0] * srcSliceY; |
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| 67 | int w = dstStride[0]; |
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| 68 | |||
| 69 | ff_bfin_yuyvtoyv12(ip, dsty, dstu, dstv, w, srcSliceH, |
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| 70 | dstStride[0], dstStride[1], srcStride[0]); |
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| 71 | |||
| 72 | return srcSliceH; |
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| 73 | } |
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| 74 | |||
| 75 | av_cold void ff_get_unscaled_swscale_bfin(SwsContext *c) |
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| 76 | { |
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| 77 | if (c->dstFormat == AV_PIX_FMT_YUV420P && c->srcFormat == AV_PIX_FMT_UYVY422) { |
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| 78 | av_log(NULL, AV_LOG_VERBOSE, |
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| 79 | "selecting Blackfin optimized uyvytoyv12_unscaled\n"); |
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| 80 | c->swscale = uyvytoyv12_unscaled; |
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| 81 | } |
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| 82 | if (c->dstFormat == AV_PIX_FMT_YUV420P && c->srcFormat == AV_PIX_FMT_YUYV422) { |
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| 83 | av_log(NULL, AV_LOG_VERBOSE, |
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| 84 | "selecting Blackfin optimized yuyvtoyv12_unscaled\n"); |
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| 85 | c->swscale = yuyvtoyv12_unscaled; |
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| 86 | } |
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| 87 | } |