Clarify the input AVPacket for avcodec_decode*()
[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: ?
6libavfilter: ?
7libavformat: ?
8libpostproc: ?
9libswscale: ?
10libavutil: 2009-03-08
11
12
13API changes, most recent first:
14
f988ce6c
152009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register()
16 av_lockmgr_register() can be used to register a callback function
17 that lavc (and in the future, libraries that depend on lavc) can use
18 to implement mutexes. The application should provide a callback function
19 the implements the AV_LOCK_* operations described in avcodec.h.
20 When the lock manager is registered FFmpeg is guaranteed to behave
21 correct also in a multi-threaded application.
22
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232009-04-30 - r18719 - lavc 52.28.0 - av_free_packet
24 av_free_packet() is no longer an inline function. It is now exported.
25
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262009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree
27 Please use NULL instead. This has been supported since r16506
28 (lavf > 52.23.1, lavc > 52.10.0).
29
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302009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
31 The old decoding functions are deprecated, all new code should use the
32 new functions avcodec_decode_video2(), avcodec_decode_audio3() and
33 avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
34 argument instead of a const uint8_t *buf / int buf_size pair.
35
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362009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space
37 Introduce the av_fifo_space() function.
38
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392009-04-02 - r18317 - lavc 52.23.0 - AVPacket
40 Move AVPacket declaration from libavformat/avformat.h to
41 libavcodec/avcodec.h.
42
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432009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats
44 Make the pixel formats: PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
45 PIX_FMT_BGRA, which were defined as macros, defined as enum
46 PixelFormat values, and viceversa make PIX_FMT_RGB32,
47 PIX_FMT_RGB32_1, PIX_FMT_BGR32, PIX_FMT_BGR32_1 defined as macros.
48 Also make avcodec_get_pix_fmt() recognize the "rgb32" and "bgr32"
49 aliases.
f3370e14 50 Re-sort the enum PixelFormat list accordingly.
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51 This change breaks API/ABI backward compatibility.
52
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532009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
54 Add the enum PixelFormat values:
55 PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
56 PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
57
b4656e6b 582009-03-21 - r18116 - lavu 50.0.0 - av_random*
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59 The Mersenne Twister PRNG implemented through the av_random* functions
60 was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
61 instead.
62
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632009-03-08 - r17869 - lavu 50.0.0 - AVFifoBuffer
64 av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
65 and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
66 and av_fifo_realloc2.
67 In addition, the order of the function arguments of av_fifo_generic_read
68 were changed to match av_fifo_generic_write.
69 The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
70 applications, they may not use sizeof() or directly access members.
22d4f236 71
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722009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API
73 Introduce a new metadata API (see av_metadata_get() and friends).
74 The old API is now deprecated and should not be used anymore. This especially
429d6b21 75 includes the following structure fields:
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76 - AVFormatContext.title
77 - AVFormatContext.author
78 - AVFormatContext.copyright
79 - AVFormatContext.comment
80 - AVFormatContext.album
81 - AVFormatContext.year
82 - AVFormatContext.track
83 - AVFormatContext.genre
84 - AVStream.language
85 - AVStream.filename
86 - AVProgram.provider_name
87 - AVProgram.name
88 - AVChapter.title