FFmpeg: libavcodec/avpicture.c Source File

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libavcodec

avpicture.c

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1 /*

2 * AVPicture management routines

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 */

22 /**

23 * @file

24 * AVPicture management routines

25 */

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"

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 }

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 }

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 }

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 }

64 return 0;

65 }

67 void avpicture_free(AVPicture *picture)

68 {

69 av_free(picture->data[0]);

70 }

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 }

Generated on Wed Jul 10 2013 23:47:55 for FFmpeg by doxygen 1.8.2