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50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
/*
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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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/**
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* @file
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* AOM common functions
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*/
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#include "libavutil/pixdesc.h"
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#include "libaom.h"
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void ff_aom_image_copy_16_to_8(AVFrame *pic, struct aom_image *img)
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{
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pic->format);
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int i;
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for (i = 0; i < desc->nb_components; i++) {
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int w = img->d_w;
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int h = img->d_h;
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int x, y;
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if (i) {
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w = (w + img->x_chroma_shift) >> img->x_chroma_shift;
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h = (h + img->y_chroma_shift) >> img->y_chroma_shift;
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}
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for (y = 0; y < h; y++) {
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uint16_t *src = (uint16_t *)(img->planes[i] + y * img->stride[i]);
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uint8_t *dst = pic->data[i] + y * pic->linesize[i];
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for (x = 0; x < w; x++)
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*dst++ = *src++;
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}
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}
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}
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