几个filter的接口转换函数

1  /*

2  * This file is part of FFmpeg.

3  *

4  * FFmpeg is free software; you can redistribute it and/or

5  * modify it under the terms of the GNU Lesser General Public

6  * License as published by the Free Software Foundation; either

7  * version 2.1 of the License, or (at your option) any later version.

8  *

9  * FFmpeg is distributed in the hope that it will be useful,

10  * but WITHOUT ANY WARRANTY; without even the implied warranty of

11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

12  * Lesser General Public License for more details.

13  *

14  * You should have received a copy of the GNU Lesser General Public

15  * License along with FFmpeg; if not, write to the Free Software

16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

17  */

18 

19  #ifndef AVFILTER_AVCODEC_H

20  #define AVFILTER_AVCODEC_H

21 

22  /**

23  * @file

24  * libavcodec/libavfilter gluing utilities

25  *

26  * This should be included in an application ONLY if the installed

27  * libavfilter has been compiled with libavcodec support, otherwise

28  * symbols defined below will not be available.

29  */

30 

31  #include "avfilter.h"

32 

33  #if FF_API_AVFILTERBUFFER

34  /**

35  * Create and return a picref reference from the data and properties

36  * contained in frame.

37  *

38  * @param perms permissions to assign to the new buffer reference

39  * @deprecated avfilter APIs work natively with AVFrame instead.

40  */

41  attribute_deprecated

42 AVFilterBufferRef *avfilter_get_video_buffer_ref_from_frame( const AVFrame * frame, int perms);

43 

44 

45  /**

46  * Create and return a picref reference from the data and properties

47  * contained in frame.

48  *

49  * @param perms permissions to assign to the new buffer reference

50  * @deprecated avfilter APIs work natively with AVFrame instead.

51  */

52  attribute_deprecated

53 AVFilterBufferRef *avfilter_get_audio_buffer_ref_from_frame( const AVFrame * frame,

54  int perms);

55 

56  /**

57  * Create and return a buffer reference from the data and properties

58  * contained in frame.

59  *

60  * @param perms permissions to assign to the new buffer reference

61  * @deprecated avfilter APIs work natively with AVFrame instead.

62  */

63  attribute_deprecated

64 AVFilterBufferRef *avfilter_get_buffer_ref_from_frame( enum AVMediaType type,

65  const AVFrame * frame,

66  int perms);

67  #endif

68 

69  #if FF_API_FILL_FRAME

70  /**

71  * Fill an AVFrame with the information stored in samplesref.

72  *

73  * @param frame an already allocated AVFrame

74  * @param samplesref an audio buffer reference

75  * @return >= 0 in case of success, a negative AVERROR code in case of

76  * failure

77  * @deprecated Use avfilter_copy_buf_props() instead.

78  */

79  attribute_deprecated

80  int avfilter_fill_frame_from_audio_buffer_ref( AVFrame * frame,

81  const AVFilterBufferRef *samplesref);

82 

83  /**

84  * Fill an AVFrame with the information stored in picref.

85  *

86  * @param frame an already allocated AVFrame

87  * @param picref a video buffer reference

88  * @return >= 0 in case of success, a negative AVERROR code in case of

89  * failure

90  * @deprecated Use avfilter_copy_buf_props() instead.

91  */

92  attribute_deprecated

93  int avfilter_fill_frame_from_video_buffer_ref( AVFrame * frame,

94  const AVFilterBufferRef *picref);

95 

96  /**

97  * Fill an AVFrame with information stored in ref.

98  *

99  * @param frame an already allocated AVFrame

100  * @param ref a video or audio buffer reference

101  * @return >= 0 in case of success, a negative AVERROR code in case of

102  * failure

103  * @deprecated Use avfilter_copy_buf_props() instead.

104  */

105  attribute_deprecated

106  int avfilter_fill_frame_from_buffer_ref( AVFrame * frame,

107  const AVFilterBufferRef *ref);

108  #endif

109 

110  #endif /* AVFILTER_AVCODEC_H */