Add an entry for the av_match_ext() addition.
[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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152010-01-02 - r20998 - lavf 52.46.0 - av_match_ext()
16 Add av_match_ext(), it should be used in place of match_ext().
17
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182010-01-01 - r20991 - lavf 52.45.0 - av_guess_format()
19 Add av_guess_format(), it should be used in place of guess_format().
20
b8f11ec8 212009-12-13 - r20834 - lavf 52.43.0 - metadata API
f69d394f 22 Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and AV_METADATA_DONT_STRDUP_VAL.
b8f11ec8 23
60a92a77 242009-12-13 - r20829 - lavu 50.7.0 - avstring.h API
f69d394f 25 Add av_d2str().
60a92a77 26
c3d15329 272009-12-13 - r20826 - lavc 52.42.0 - AVStream
f69d394f 28 Add avg_frame_rate.
c3d15329 29
54c24216
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302009-12-12 - r20808 - lavu 50.6.0 - av_bmg_next()
31 Introduce the av_bmg_next() function.
32
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332009-12-05 - r20734 - lavfi 1.12.0 - avfilter_draw_slice()
34 Add a slice_dir parameter to avfilter_draw_slice().
35
7cab9a66
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362009-11-26 - r20611 - lavfi 1.11.0 - AVFilter
37 Remove the next field from AVFilter, this is not anymore required.
38
b5a683eb
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392009-11-25 - r20607 - lavfi 1.10.0 - avfilter_next()
40 Introduce the avfilter_next() function.
41
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422009-11-25 - r20605 - lavfi 1.9.0 - avfilter_register()
43 Change the signature of avfilter_register() to make it return an
44 int. This is required since now the registration operation may fail.
45
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462009-11-25 - r20603 - lavu 50.5.0 - pixdesc.h API
47 Make the pixdesc.h API public.
48
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492009-10-27 - r20385 - lavfi 1.5.0 - AVFilter.next
50 Add a next field to AVFilter, this is used for simplifying the
51 registration and management of the registered filters.
52
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532009-10-23 - r20356 - lavfi 1.4.1 - AVFilter.description
54 Add a description field to AVFilter.
01537e9f 55
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562009-10-19 - r20302 - lavfi 1.3.0 - avfilter_make_format_list()
57 Change the interface of avfilter_make_format_list() from
58 avfilter_make_format_list(int n, ...) to
59 avfilter_make_format_list(enum PixelFormat *pix_fmts).
60
c3b27a3d
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612009-10-18 - r20272 - lavfi 1.0.0 - avfilter_get_video_buffer()
62 Make avfilter_get_video_buffer() recursive and add the w and h
63 parameters to it.
64
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652009-10-07 - r20189 - lavfi 0.5.1 - AVFilterPic
66 Added w and h fields to AVFilterPic.
67
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682009-06-22 - r19250 - lavf 52.34.1 - AVFormatContext.packet_size
69 This is now an unsigned int instead of a signed int.
70
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712009-06-19 - r19222 - lavc 52.32.0 - AVSubtitle.pts
72 Added a pts field to AVSubtitle which gives the subtitle's packet
73 PTS in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
74 not work right without this.
75
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762009-06-03 - r19078 - lavc 52.30.2 - AV_PKT_FLAG_KEY
77 PKT_FLAG_KEY has been deprecated and will be dropped for the next
78 major version. Use AV_PKT_FLAG_KEY instead.
79
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802009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register()
81 av_lockmgr_register() can be used to register a callback function
82 that lavc (and in the future, libraries that depend on lavc) can use
83 to implement mutexes. The application should provide a callback function
84 the implements the AV_LOCK_* operations described in avcodec.h.
85 When the lock manager is registered FFmpeg is guaranteed to behave
86 correct also in a multi-threaded application.
87
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882009-04-30 - r18719 - lavc 52.28.0 - av_free_packet
89 av_free_packet() is no longer an inline function. It is now exported.
90
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912009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree
92 Please use NULL instead. This has been supported since r16506
93 (lavf > 52.23.1, lavc > 52.10.0).
94
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952009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
96 The old decoding functions are deprecated, all new code should use the
97 new functions avcodec_decode_video2(), avcodec_decode_audio3() and
98 avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
99 argument instead of a const uint8_t *buf / int buf_size pair.
100
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1012009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space
102 Introduce the av_fifo_space() function.
103
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1042009-04-02 - r18317 - lavc 52.23.0 - AVPacket
105 Move AVPacket declaration from libavformat/avformat.h to
106 libavcodec/avcodec.h.
107
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1082009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats
109 Make the pixel formats: PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
110 PIX_FMT_BGRA, which were defined as macros, defined as enum
111 PixelFormat values, and viceversa make PIX_FMT_RGB32,
112 PIX_FMT_RGB32_1, PIX_FMT_BGR32, PIX_FMT_BGR32_1 defined as macros.
113 Also make avcodec_get_pix_fmt() recognize the "rgb32" and "bgr32"
114 aliases.
f3370e14 115 Re-sort the enum PixelFormat list accordingly.
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116 This change breaks API/ABI backward compatibility.
117
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1182009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
119 Add the enum PixelFormat values:
120 PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
121 PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
122
b4656e6b 1232009-03-21 - r18116 - lavu 50.0.0 - av_random*
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124 The Mersenne Twister PRNG implemented through the av_random* functions
125 was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
126 instead.
127
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1282009-03-08 - r17869 - lavu 50.0.0 - AVFifoBuffer
129 av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
130 and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
131 and av_fifo_realloc2.
132 In addition, the order of the function arguments of av_fifo_generic_read
133 were changed to match av_fifo_generic_write.
134 The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
135 applications, they may not use sizeof() or directly access members.
22d4f236 136
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1372009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API
138 Introduce a new metadata API (see av_metadata_get() and friends).
139 The old API is now deprecated and should not be used anymore. This especially
429d6b21 140 includes the following structure fields:
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141 - AVFormatContext.title
142 - AVFormatContext.author
143 - AVFormatContext.copyright
144 - AVFormatContext.comment
145 - AVFormatContext.album
146 - AVFormatContext.year
147 - AVFormatContext.track
148 - AVFormatContext.genre
149 - AVStream.language
150 - AVStream.filename
151 - AVProgram.provider_name
152 - AVProgram.name
153 - AVChapter.title