Add a field 'next' to AVFilter.
[libav.git] / doc / APIchanges
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1Never assume the API of libav* to be stable unless at least 1 week has passed since
2the last major version increase.
3The last version increases were:
4libavcodec: ?
5libavdevice: ?
c3b27a3d 6libavfilter: 2009-10-18
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7libavformat: ?
8libpostproc: ?
9libswscale: ?
10libavutil: 2009-03-08
11
12
13API changes, most recent first:
14
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152009-10-23 - r20356 - lavfi 1.4.1 - AVFilter.description
16 Add a description field to AVFilter.
01537e9f 17
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182009-10-19 - r20302 - lavfi 1.3.0 - avfilter_make_format_list()
19 Change the interface of avfilter_make_format_list() from
20 avfilter_make_format_list(int n, ...) to
21 avfilter_make_format_list(enum PixelFormat *pix_fmts).
22
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232009-10-18 - r20272 - lavfi 1.0.0 - avfilter_get_video_buffer()
24 Make avfilter_get_video_buffer() recursive and add the w and h
25 parameters to it.
26
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272009-10-07 - r20189 - lavfi 0.5.1 - AVFilterPic
28 Added w and h fields to AVFilterPic.
29
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302009-06-22 - r19250 - lavf 52.34.1 - AVFormatContext.packet_size
31 This is now an unsigned int instead of a signed int.
32
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332009-06-19 - r19222 - lavc 52.32.0 - AVSubtitle.pts
34 Added a pts field to AVSubtitle which gives the subtitle's packet
35 PTS in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
36 not work right without this.
37
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382009-06-03 - r19078 - lavc 52.30.2 - AV_PKT_FLAG_KEY
39 PKT_FLAG_KEY has been deprecated and will be dropped for the next
40 major version. Use AV_PKT_FLAG_KEY instead.
41
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422009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register()
43 av_lockmgr_register() can be used to register a callback function
44 that lavc (and in the future, libraries that depend on lavc) can use
45 to implement mutexes. The application should provide a callback function
46 the implements the AV_LOCK_* operations described in avcodec.h.
47 When the lock manager is registered FFmpeg is guaranteed to behave
48 correct also in a multi-threaded application.
49
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502009-04-30 - r18719 - lavc 52.28.0 - av_free_packet
51 av_free_packet() is no longer an inline function. It is now exported.
52
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532009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree
54 Please use NULL instead. This has been supported since r16506
55 (lavf > 52.23.1, lavc > 52.10.0).
56
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572009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
58 The old decoding functions are deprecated, all new code should use the
59 new functions avcodec_decode_video2(), avcodec_decode_audio3() and
60 avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
61 argument instead of a const uint8_t *buf / int buf_size pair.
62
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632009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space
64 Introduce the av_fifo_space() function.
65
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662009-04-02 - r18317 - lavc 52.23.0 - AVPacket
67 Move AVPacket declaration from libavformat/avformat.h to
68 libavcodec/avcodec.h.
69
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702009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats
71 Make the pixel formats: PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
72 PIX_FMT_BGRA, which were defined as macros, defined as enum
73 PixelFormat values, and viceversa make PIX_FMT_RGB32,
74 PIX_FMT_RGB32_1, PIX_FMT_BGR32, PIX_FMT_BGR32_1 defined as macros.
75 Also make avcodec_get_pix_fmt() recognize the "rgb32" and "bgr32"
76 aliases.
f3370e14 77 Re-sort the enum PixelFormat list accordingly.
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78 This change breaks API/ABI backward compatibility.
79
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802009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
81 Add the enum PixelFormat values:
82 PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
83 PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
84
b4656e6b 852009-03-21 - r18116 - lavu 50.0.0 - av_random*
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86 The Mersenne Twister PRNG implemented through the av_random* functions
87 was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
88 instead.
89
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902009-03-08 - r17869 - lavu 50.0.0 - AVFifoBuffer
91 av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
92 and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
93 and av_fifo_realloc2.
94 In addition, the order of the function arguments of av_fifo_generic_read
95 were changed to match av_fifo_generic_write.
96 The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
97 applications, they may not use sizeof() or directly access members.
22d4f236 98
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992009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API
100 Introduce a new metadata API (see av_metadata_get() and friends).
101 The old API is now deprecated and should not be used anymore. This especially
429d6b21 102 includes the following structure fields:
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103 - AVFormatContext.title
104 - AVFormatContext.author
105 - AVFormatContext.copyright
106 - AVFormatContext.comment
107 - AVFormatContext.album
108 - AVFormatContext.year
109 - AVFormatContext.track
110 - AVFormatContext.genre
111 - AVStream.language
112 - AVStream.filename
113 - AVProgram.provider_name
114 - AVProgram.name
115 - AVChapter.title