Add an entry to APIchanges for the addition of sws_convertPalette8ToPacked32 -24
[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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152010-06-01 - r31301 - lsws 0.11.0 - convertPalette API
16 Add sws_convertPalette8ToPacked32 and sws_convertPalette8ToPacked24
17
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182010-05-26 - r23334 - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
19 Add CODEC_CAP_EXPERIMENTAL flag.
20
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212010-05-23 - r23255 - lavu 50.16.0 - av_get_random_seed
22 Add av_get_random_seed()
23
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242010-05-18 - r23161 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
25 Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags
26
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272010-05-09 - r23066 - lavfi 1.20.0 - AVFilterPicRef
28 Add interlaced and top_field_first fields to AVFilterPicRef.
29
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302010-05-01 - r23002 - lavf 52.62.0 - probe function
31 Add av_probe_input_format2 to API, it allows ignoring probe
32 results below given score and returns the actual probe score.
33
2100348c 342010-04-01 - r22806 - lavf 52.61.0 - metadata API
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35 Add a flag for av_metadata_set2() to disable overwriting of
36 existing tags.
37
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382010-04-01 - r22753 - lavc 52.66.0
39 Add avcodec_get_edge_width()
40
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412010-03-31 - r22750 - lavc 52.65.0
42 Add avcodec_copy_context().
43
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442010-03-31 - r22748 - lavf 52.60.0 - av_match_ext()
45 Make av_match_ext() public.
46
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472010-03-31 - r22736 - lavu 50.14.0 - AVMediaType
48 Move AVMediaType enum from libavcodec to libavutil.
49
502010-03-31 - r22735 - lavc 52.64.0 - AVMediaType
51 Define AVMediaType enum, and use it instead of enum CodecType, which
52 is deprecated and will be dropped at the next major bump.
53
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542010-03-25 - r22684 - lavu 50.13.0 - av_strerror()
55 Implement av_strerror().
56
69087742 572010-03-23 - r22649 - lavc 52.60.0 - av_dct_init()
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58 Support DCT-I and DST-I
59
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602010-03-15 - r22540 - lavf 52.56.0 - AVFormatContext.start_time_realtime
61 Add AVFormatContext.start_time_realtime field.
62
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632010-03-13 - r22506 - lavfi 1.18.0 - AVFilterPicRef.pos
64 Add AVFilterPicRef.pos field.
65
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662010-03-13 - r22501 - lavu 50.12.0 - error.h
67 Move error code definitions from libavcodec/avcodec.h to
68 the new public header libavutil/error.h.
69
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702010-03-07 - r22291 - lavc 52.56.0 - avfft.h
71 Add public FFT interface.
72
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732010-03-06 - r22251 - lavu 50.11.0 - av_stristr()
74 Add av_stristr().
75
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762010-03-03 - r22174 - lavu 50.10.0 - av_tree_enumerate()
77 Add av_tree_enumerate().
78
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792010-02-07 - r21673 - lavu 50.9.0 - av_compare_ts()
80 Add av_compare_ts().
81
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822010-02-05 - r30513 - lsws 0.10.0 - sws_getCoefficients()
83 Add sws_getCoefficients().
84
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852010-02-01 - r21587 - lavf 52.50.0 - metadata API
86 Add a list of generic tag names, change 'author' -> 'artist',
87 'year' -> 'date'.
88
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892010-01-30 - r21545 - lavu 50.8.0 - av_get_pix_fmt()
90 Add av_get_pix_fmt().
91
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922010-01-21 - r30381 - lsws 0.9.0 - sws_scale
93 Change constness attributes of sws_scale() parameters.
94
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952010-01-10 - r21121 - lavfi 1.15.0 - avfilter_graph_config_links()
96 Add a log_ctx parameter to avfilter_graph_config_links().
97
715cff9a 982010-01-07 - r30236 - lsws 0.8.0 - sws_isSupported{In,Out}put
1c790092 99 Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
715cff9a 100
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1012010-01-06 - r21035 - lavfi 1.14.0 - avfilter_add_colorspace()
102 Change the avfilter_add_colorspace() signature, make it accept an
103 (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
104
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1052010-01-03 - r21007 - lavfi 1.13.0 - avfilter_add_colorspace()
106 Add avfilter_add_colorspace().
107
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1082010-01-02 - r20998 - lavf 52.46.0 - av_match_ext()
109 Add av_match_ext(), it should be used in place of match_ext().
110
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1112010-01-01 - r20991 - lavf 52.45.0 - av_guess_format()
112 Add av_guess_format(), it should be used in place of guess_format().
113
b8f11ec8 1142009-12-13 - r20834 - lavf 52.43.0 - metadata API
f69d394f 115 Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and AV_METADATA_DONT_STRDUP_VAL.
b8f11ec8 116
60a92a77 1172009-12-13 - r20829 - lavu 50.7.0 - avstring.h API
f69d394f 118 Add av_d2str().
60a92a77 119
c3d15329 1202009-12-13 - r20826 - lavc 52.42.0 - AVStream
f69d394f 121 Add avg_frame_rate.
c3d15329 122
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1232009-12-12 - r20808 - lavu 50.6.0 - av_bmg_next()
124 Introduce the av_bmg_next() function.
125
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1262009-12-05 - r20734 - lavfi 1.12.0 - avfilter_draw_slice()
127 Add a slice_dir parameter to avfilter_draw_slice().
128
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1292009-11-26 - r20611 - lavfi 1.11.0 - AVFilter
130 Remove the next field from AVFilter, this is not anymore required.
131
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1322009-11-25 - r20607 - lavfi 1.10.0 - avfilter_next()
133 Introduce the avfilter_next() function.
134
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1352009-11-25 - r20605 - lavfi 1.9.0 - avfilter_register()
136 Change the signature of avfilter_register() to make it return an
137 int. This is required since now the registration operation may fail.
138
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1392009-11-25 - r20603 - lavu 50.5.0 - pixdesc.h API
140 Make the pixdesc.h API public.
141
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1422009-10-27 - r20385 - lavfi 1.5.0 - AVFilter.next
143 Add a next field to AVFilter, this is used for simplifying the
144 registration and management of the registered filters.
145
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1462009-10-23 - r20356 - lavfi 1.4.1 - AVFilter.description
147 Add a description field to AVFilter.
01537e9f 148
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1492009-10-19 - r20302 - lavfi 1.3.0 - avfilter_make_format_list()
150 Change the interface of avfilter_make_format_list() from
151 avfilter_make_format_list(int n, ...) to
152 avfilter_make_format_list(enum PixelFormat *pix_fmts).
153
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1542009-10-18 - r20272 - lavfi 1.0.0 - avfilter_get_video_buffer()
155 Make avfilter_get_video_buffer() recursive and add the w and h
156 parameters to it.
157
04670366 1582009-10-07 - r20189 - lavfi 0.5.1 - AVFilterPic
227d1b98 159 Add w and h fields to AVFilterPic.
04670366 160
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1612009-06-22 - r19250 - lavf 52.34.1 - AVFormatContext.packet_size
162 This is now an unsigned int instead of a signed int.
163
4bbe788a 1642009-06-19 - r19222 - lavc 52.32.0 - AVSubtitle.pts
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165 Add a pts field to AVSubtitle which gives the subtitle packet pts
166 in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
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167 not work right without this.
168
8f3f2e06 1692009-06-03 - r19078 - lavc 52.30.2 - AV_PKT_FLAG_KEY
227d1b98 170 PKT_FLAG_KEY has been deprecated and will be dropped at the next
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171 major version. Use AV_PKT_FLAG_KEY instead.
172
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1732009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register()
174 av_lockmgr_register() can be used to register a callback function
175 that lavc (and in the future, libraries that depend on lavc) can use
176 to implement mutexes. The application should provide a callback function
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177 that implements the AV_LOCK_* operations described in avcodec.h.
178 When the lock manager is registered, FFmpeg is guaranteed to behave
179 correctly in a multi-threaded application.
f988ce6c 180
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1812009-04-30 - r18719 - lavc 52.28.0 - av_free_packet
182 av_free_packet() is no longer an inline function. It is now exported.
183
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1842009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree
185 Please use NULL instead. This has been supported since r16506
186 (lavf > 52.23.1, lavc > 52.10.0).
187
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1882009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
189 The old decoding functions are deprecated, all new code should use the
190 new functions avcodec_decode_video2(), avcodec_decode_audio3() and
191 avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
192 argument instead of a const uint8_t *buf / int buf_size pair.
193
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1942009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space
195 Introduce the av_fifo_space() function.
196
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1972009-04-02 - r18317 - lavc 52.23.0 - AVPacket
198 Move AVPacket declaration from libavformat/avformat.h to
199 libavcodec/avcodec.h.
200
5a43bbc3 2012009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats
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202 Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
203 PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
204 Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
205 PIX_FMT_BGR32_1 are now macros.
206 avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
f3370e14 207 Re-sort the enum PixelFormat list accordingly.
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208 This change breaks API/ABI backward compatibility.
209
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2102009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
211 Add the enum PixelFormat values:
212 PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
213 PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
214
b4656e6b 2152009-03-21 - r18116 - lavu 50.0.0 - av_random*
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216 The Mersenne Twister PRNG implemented through the av_random* functions
217 was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
218 instead.
219
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2202009-03-08 - r17869 - lavu 50.0.0 - AVFifoBuffer
221 av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
222 and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
223 and av_fifo_realloc2.
224 In addition, the order of the function arguments of av_fifo_generic_read
227d1b98 225 was changed to match av_fifo_generic_write.
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226 The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
227 applications, they may not use sizeof() or directly access members.
22d4f236 228
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2292009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API
230 Introduce a new metadata API (see av_metadata_get() and friends).
231 The old API is now deprecated and should not be used anymore. This especially
429d6b21 232 includes the following structure fields:
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233 - AVFormatContext.title
234 - AVFormatContext.author
235 - AVFormatContext.copyright
236 - AVFormatContext.comment
237 - AVFormatContext.album
238 - AVFormatContext.year
239 - AVFormatContext.track
240 - AVFormatContext.genre
241 - AVStream.language
242 - AVStream.filename
243 - AVProgram.provider_name
244 - AVProgram.name
245 - AVChapter.title