yading@10: /*
yading@10:  * AVPicture management routines
yading@10:  * Copyright (c) 2001, 2002, 2003 Fabrice Bellard
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: /**
yading@10:  * @file
yading@10:  * AVPicture management routines
yading@10:  */
yading@10: 
yading@10: #include "avcodec.h"
yading@10: #include "internal.h"
yading@10: #include "libavutil/common.h"
yading@10: #include "libavutil/pixdesc.h"
yading@10: #include "libavutil/imgutils.h"
yading@10: #include "libavutil/colorspace.h"
yading@10: 
yading@10: int avpicture_fill(AVPicture *picture, const uint8_t *ptr,
yading@10:                    enum AVPixelFormat pix_fmt, int width, int height)
yading@10: {
yading@10:     return av_image_fill_arrays(picture->data, picture->linesize,
yading@10:                                 ptr, pix_fmt, width, height, 1);
yading@10: }
yading@10: 
yading@10: int avpicture_layout(const AVPicture* src, enum AVPixelFormat pix_fmt, int width, int height,
yading@10:                      unsigned char *dest, int dest_size)
yading@10: {
yading@10:     return av_image_copy_to_buffer(dest, dest_size,
yading@10:                                    (const uint8_t * const*)src->data, src->linesize,
yading@10:                                    pix_fmt, width, height, 1);
yading@10: }
yading@10: 
yading@10: int avpicture_get_size(enum AVPixelFormat pix_fmt, int width, int height)
yading@10: {
yading@10:     return av_image_get_buffer_size(pix_fmt, width, height, 1);
yading@10: }
yading@10: 
yading@10: int avpicture_alloc(AVPicture *picture,
yading@10:                     enum AVPixelFormat pix_fmt, int width, int height)
yading@10: {
yading@10:     int ret = av_image_alloc(picture->data, picture->linesize,
yading@10:                              width, height, pix_fmt, 1);
yading@10:     if (ret < 0) {
yading@10:         memset(picture, 0, sizeof(AVPicture));
yading@10:         return ret;
yading@10:     }
yading@10: 
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: void avpicture_free(AVPicture *picture)
yading@10: {
yading@10:     av_free(picture->data[0]);
yading@10: }
yading@10: 
yading@10: void av_picture_copy(AVPicture *dst, const AVPicture *src,
yading@10:                      enum AVPixelFormat pix_fmt, int width, int height)
yading@10: {
yading@10:     av_image_copy(dst->data, dst->linesize, (const uint8_t **)src->data,
yading@10:                   src->linesize, pix_fmt, width, height);
yading@10: }
yading@10: