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  1. /*
  2.  * AVPicture management routines
  3.  * Copyright (c) 2001, 2002, 2003 Fabrice Bellard
  4.  *
  5.  * This file is part of FFmpeg.
  6.  *
  7.  * FFmpeg is free software; you can redistribute it and/or
  8.  * modify it under the terms of the GNU Lesser General Public
  9.  * License as published by the Free Software Foundation; either
  10.  * version 2.1 of the License, or (at your option) any later version.
  11.  *
  12.  * FFmpeg is distributed in the hope that it will be useful,
  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15.  * Lesser General Public License for more details.
  16.  *
  17.  * You should have received a copy of the GNU Lesser General Public
  18.  * License along with FFmpeg; if not, write to the Free Software
  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20.  */
  21.  
  22. /**
  23.  * @file
  24.  * AVPicture management routines
  25.  */
  26.  
  27. #include "avcodec.h"
  28. #include "internal.h"
  29. #include "libavutil/common.h"
  30. #include "libavutil/pixdesc.h"
  31. #include "libavutil/imgutils.h"
  32. #include "libavutil/colorspace.h"
  33.  
  34. int avpicture_fill(AVPicture *picture, const uint8_t *ptr,
  35.                    enum AVPixelFormat pix_fmt, int width, int height)
  36. {
  37.     return av_image_fill_arrays(picture->data, picture->linesize,
  38.                                 ptr, pix_fmt, width, height, 1);
  39. }
  40.  
  41. int avpicture_layout(const AVPicture* src, enum AVPixelFormat pix_fmt, int width, int height,
  42.                      unsigned char *dest, int dest_size)
  43. {
  44.     return av_image_copy_to_buffer(dest, dest_size,
  45.                                    (const uint8_t * const*)src->data, src->linesize,
  46.                                    pix_fmt, width, height, 1);
  47. }
  48.  
  49. int avpicture_get_size(enum AVPixelFormat pix_fmt, int width, int height)
  50. {
  51.     return av_image_get_buffer_size(pix_fmt, width, height, 1);
  52. }
  53.  
  54. int avpicture_alloc(AVPicture *picture,
  55.                     enum AVPixelFormat pix_fmt, int width, int height)
  56. {
  57.     int ret = av_image_alloc(picture->data, picture->linesize,
  58.                              width, height, pix_fmt, 1);
  59.     if (ret < 0) {
  60.         memset(picture, 0, sizeof(AVPicture));
  61.         return ret;
  62.     }
  63.  
  64.     return 0;
  65. }
  66.  
  67. void avpicture_free(AVPicture *picture)
  68. {
  69.     av_free(picture->data[0]);
  70. }
  71.  
  72. void av_picture_copy(AVPicture *dst, const AVPicture *src,
  73.                      enum AVPixelFormat pix_fmt, int width, int height)
  74. {
  75.     av_image_copy(dst->data, dst->linesize, (const uint8_t **)src->data,
  76.                   src->linesize, pix_fmt, width, height);
  77. }
  78.  
  79.