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  1. Never assume the API of libav* to be stable unless at least 1 week has passed since

  2. the last major version increase.

  3. The last version increases were:

  4. libavcodec:  ?

  5. libavdevice: ?

  6. libavfilter: 2009-10-18

  7. libavformat: ?

  8. libpostproc: ?

  9. libswscale:  ?

  10. libavutil:   2009-03-08

  11. 

  12. 

  13. API changes, most recent first:

  14. 

  15. 2010-07-11 - r24185 - lavc 52.82.0 - avsubtitle_free()

  16.   Add a function for free the contents of a AVSubtitle generated by

  17.   avcodec_decode_subtitle.

  18. 

  19. 2010-07-08 - r24101 - lavu 50.21.0 - pixdesc.h

  20.   Rename read/write_line() to av_read/write_image_line().

  21. 

  22. 2010-07-07 - r24091 - lavfi 1.21.0 - avfilter_copy_picref_props()

  23.   Add avfilter_copy_picref_props().

  24. 

  25. 2010-07-03 - r24021 - lavc 52.79.0

  26.   Add FF_COMPLIANCE_UNOFFICIAL and change all instances of

  27.   FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.

  28. 

  29. 2010-07-02 - r23985 - lavu 50.20.0 - lfg.h

  30.   Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through

  31.   lfg.h.

  32. 

  33. 2010-06-28 - r23835 - lavfi 1.20.1 - av_parse_color()

  34.   Extend av_parse_color() syntax, make it accept an alpha value specifier and

  35.   set the alpha value to 255 by default.

  36. 

  37. 2010-06-22 - r23706 - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class

  38.   Add priv_data_size and priv_data_class to URLProtocol.

  39. 

  40. 2010-06-22 - r23704 - lavf 52.70.0 - url_alloc(), url_connect()

  41.   Add url_alloc() and url_connect().

  42. 

  43. 2010-06-22 - r23702 - lavf 52.69.0 - av_register_protocol2()

  44.   Add av_register_protocol2(), deprecating av_register_protocol().

  45. 

  46. 2010-06-09 - r23551 - lavu 50.19.0 - av_compare_mod()

  47.   Add av_compare_mod() to libavutil/mathematics.h.

  48. 

  49. 2010-06-05 - r23485 - lavu 50.18.0 - eval API

  50.   Make the eval API public.

  51. 

  52. 2010-06-04 - r23461 - lavu 50.17.0 - AV_BASE64_SIZE

  53.   Add AV_BASE64_SIZE() macro.

  54. 

  55. 2010-06-02 - r23421 - lavc 52.73.0 - av_get_codec_tag_string()

  56.   Add av_get_codec_tag_string().

  57. 

  58. 2010-06-01 - r31301 - lsws 0.11.0 - convertPalette API

  59.   Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().

  60. 

  61. 2010-05-26 - r23334 - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL

  62.   Add CODEC_CAP_EXPERIMENTAL flag.

  63. 

  64. 2010-05-23 - r23255 - lavu 50.16.0 - av_get_random_seed()

  65.   Add av_get_random_seed().

  66. 

  67. 2010-05-18 - r23161 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT

  68.   Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.

  69. 

  70. 2010-05-09 - r23066 - lavfi 1.20.0 - AVFilterPicRef

  71.   Add interlaced and top_field_first fields to AVFilterPicRef.

  72. 

  73. 2010-05-01 - r23002 - lavf 52.62.0 - probe function

  74.   Add av_probe_input_format2 to API, it allows ignoring probe

  75.   results below given score and returns the actual probe score.

  76. 

  77. 2010-04-01 - r22806 - lavf 52.61.0 - metadata API

  78.   Add a flag for av_metadata_set2() to disable overwriting of

  79.   existing tags.

  80. 

  81. 2010-04-01 - r22753 - lavc 52.66.0

  82.   Add avcodec_get_edge_width().

  83. 

  84. 2010-03-31 - r22750 - lavc 52.65.0

  85.   Add avcodec_copy_context().

  86. 

  87. 2010-03-31 - r22748 - lavf 52.60.0 - av_match_ext()

  88.   Make av_match_ext() public.

  89. 

  90. 2010-03-31 - r22736 - lavu 50.14.0 - AVMediaType

  91.   Move AVMediaType enum from libavcodec to libavutil.

  92. 

  93. 2010-03-31 - r22735 - lavc 52.64.0 - AVMediaType

  94.   Define AVMediaType enum, and use it instead of enum CodecType, which

  95.   is deprecated and will be dropped at the next major bump.

  96. 

  97. 2010-03-25 - r22684 - lavu 50.13.0 - av_strerror()

  98.   Implement av_strerror().

  99. 

  100. 2010-03-23 - r22649 - lavc 52.60.0 - av_dct_init()

  101.   Support DCT-I and DST-I.

  102. 

  103. 2010-03-15 - r22540 - lavf 52.56.0 - AVFormatContext.start_time_realtime

  104.   Add AVFormatContext.start_time_realtime field.

  105. 

  106. 2010-03-13 - r22506 - lavfi 1.18.0 - AVFilterPicRef.pos

  107.   Add AVFilterPicRef.pos field.

  108. 

  109. 2010-03-13 - r22501 - lavu 50.12.0 - error.h

  110.   Move error code definitions from libavcodec/avcodec.h to

  111.   the new public header libavutil/error.h.

  112. 

  113. 2010-03-07 - r22291 - lavc 52.56.0 - avfft.h

  114.   Add public FFT interface.

  115. 

  116. 2010-03-06 - r22251 - lavu 50.11.0 - av_stristr()

  117.   Add av_stristr().

  118. 

  119. 2010-03-03 - r22174 - lavu 50.10.0 - av_tree_enumerate()

  120.   Add av_tree_enumerate().

  121. 

  122. 2010-02-07 - r21673 - lavu 50.9.0 - av_compare_ts()

  123.   Add av_compare_ts().

  124. 

  125. 2010-02-05 - r30513 - lsws 0.10.0 - sws_getCoefficients()

  126.   Add sws_getCoefficients().

  127. 

  128. 2010-02-01 - r21587 - lavf 52.50.0 - metadata API

  129.   Add a list of generic tag names, change 'author' -> 'artist',

  130.   'year' -> 'date'.

  131. 

  132. 2010-01-30 - r21545 - lavu 50.8.0 - av_get_pix_fmt()

  133.   Add av_get_pix_fmt().

  134. 

  135. 2010-01-21 - r30381 - lsws 0.9.0 - sws_scale()

  136.   Change constness attributes of sws_scale() parameters.

  137. 

  138. 2010-01-10 - r21121 - lavfi 1.15.0 - avfilter_graph_config_links()

  139.   Add a log_ctx parameter to avfilter_graph_config_links().

  140. 

  141. 2010-01-07 - r30236 - lsws 0.8.0 - sws_isSupported{In,Out}put()

  142.   Add sws_isSupportedInput() and sws_isSupportedOutput() functions.

  143. 

  144. 2010-01-06 - r21035 - lavfi 1.14.0 - avfilter_add_colorspace()

  145.   Change the avfilter_add_colorspace() signature, make it accept an

  146.   (AVFilterFormats **) rather than an (AVFilterFormats *) as before.

  147. 

  148. 2010-01-03 - r21007 - lavfi 1.13.0 - avfilter_add_colorspace()

  149.   Add avfilter_add_colorspace().

  150. 

  151. 2010-01-02 - r20998 - lavf 52.46.0 - av_match_ext()

  152.   Add av_match_ext(), it should be used in place of match_ext().

  153. 

  154. 2010-01-01 - r20991 - lavf 52.45.0 - av_guess_format()

  155.   Add av_guess_format(), it should be used in place of guess_format().

  156. 

  157. 2009-12-13 - r20834 - lavf 52.43.0 - metadata API

  158.   Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and

  159.   AV_METADATA_DONT_STRDUP_VAL.

  160. 

  161. 2009-12-13 - r20829 - lavu 50.7.0 - avstring.h API

  162.   Add av_d2str().

  163. 

  164. 2009-12-13 - r20826 - lavc 52.42.0 - AVStream

  165.   Add avg_frame_rate.

  166. 

  167. 2009-12-12 - r20808 - lavu 50.6.0 - av_bmg_next()

  168.   Introduce the av_bmg_next() function.

  169. 

  170. 2009-12-05 - r20734 - lavfi 1.12.0 - avfilter_draw_slice()

  171.   Add a slice_dir parameter to avfilter_draw_slice().

  172. 

  173. 2009-11-26 - r20611 - lavfi 1.11.0 - AVFilter

  174.   Remove the next field from AVFilter, this is not anymore required.

  175. 

  176. 2009-11-25 - r20607 - lavfi 1.10.0 - avfilter_next()

  177.   Introduce the avfilter_next() function.

  178. 

  179. 2009-11-25 - r20605 - lavfi 1.9.0 - avfilter_register()

  180.   Change the signature of avfilter_register() to make it return an

  181.   int. This is required since now the registration operation may fail.

  182. 

  183. 2009-11-25 - r20603 - lavu 50.5.0 - pixdesc.h API

  184.   Make the pixdesc.h API public.

  185. 

  186. 2009-10-27 - r20385 - lavfi 1.5.0 - AVFilter.next

  187.   Add a next field to AVFilter, this is used for simplifying the

  188.   registration and management of the registered filters.

  189. 

  190. 2009-10-23 - r20356 - lavfi 1.4.1 - AVFilter.description

  191.   Add a description field to AVFilter.

  192. 

  193. 2009-10-19 - r20302 - lavfi 1.3.0 - avfilter_make_format_list()

  194.   Change the interface of avfilter_make_format_list() from

  195.   avfilter_make_format_list(int n, ...) to

  196.   avfilter_make_format_list(enum PixelFormat *pix_fmts).

  197. 

  198. 2009-10-18 - r20272 - lavfi 1.0.0 - avfilter_get_video_buffer()

  199.   Make avfilter_get_video_buffer() recursive and add the w and h

  200.   parameters to it.

  201. 

  202. 2009-10-07 - r20189 - lavfi 0.5.1 - AVFilterPic

  203.   Add w and h fields to AVFilterPic.

  204. 

  205. 2009-06-22 - r19250 - lavf 52.34.1 - AVFormatContext.packet_size

  206.   This is now an unsigned int instead of a signed int.

  207. 

  208. 2009-06-19 - r19222 - lavc 52.32.0 - AVSubtitle.pts

  209.   Add a pts field to AVSubtitle which gives the subtitle packet pts

  210.   in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will

  211.   not work right without this.

  212. 

  213. 2009-06-03 - r19078 - lavc 52.30.2 - AV_PKT_FLAG_KEY

  214.   PKT_FLAG_KEY has been deprecated and will be dropped at the next

  215.   major version. Use AV_PKT_FLAG_KEY instead.

  216. 

  217. 2009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register()

  218.   av_lockmgr_register() can be used to register a callback function

  219.   that lavc (and in the future, libraries that depend on lavc) can use

  220.   to implement mutexes. The application should provide a callback function

  221.   that implements the AV_LOCK_* operations described in avcodec.h.

  222.   When the lock manager is registered, FFmpeg is guaranteed to behave

  223.   correctly in a multi-threaded application.

  224. 

  225. 2009-04-30 - r18719 - lavc 52.28.0 - av_free_packet()

  226.   av_free_packet() is no longer an inline function. It is now exported.

  227. 

  228. 2009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree()

  229.   Please use NULL instead. This has been supported since r16506

  230.   (lavf > 52.23.1, lavc > 52.10.0).

  231. 

  232. 2009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle

  233.   The old decoding functions are deprecated, all new code should use the

  234.   new functions avcodec_decode_video2(), avcodec_decode_audio3() and

  235.   avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt

  236.   argument instead of a const uint8_t *buf / int buf_size pair.

  237. 

  238. 2009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space()

  239.   Introduce the av_fifo_space() function.

  240. 

  241. 2009-04-02 - r18317 - lavc 52.23.0 - AVPacket

  242.   Move AVPacket declaration from libavformat/avformat.h to

  243.   libavcodec/avcodec.h.

  244. 

  245. 2009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats

  246.   Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,

  247.   PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.

  248.   Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and

  249.   PIX_FMT_BGR32_1 are now macros.

  250.   avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.

  251.   Re-sort the enum PixelFormat list accordingly.

  252.   This change breaks API/ABI backward compatibility.

  253. 

  254. 2009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants

  255.   Add the enum PixelFormat values:

  256.   PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,

  257.   PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.

  258. 

  259. 2009-03-21 - r18116 - lavu 50.0.0  - av_random*

  260.   The Mersenne Twister PRNG implemented through the av_random* functions

  261.   was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions

  262.   instead.

  263. 

  264. 2009-03-08 - r17869 - lavu 50.0.0  - AVFifoBuffer

  265.   av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped

  266.   and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write

  267.   and av_fifo_realloc2.

  268.   In addition, the order of the function arguments of av_fifo_generic_read

  269.   was changed to match av_fifo_generic_write.

  270.   The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by

  271.   applications, they may not use sizeof() or directly access members.

  272. 

  273. 2009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API

  274.   Introduce a new metadata API (see av_metadata_get() and friends).

  275.   The old API is now deprecated and should not be used anymore. This especially

  276.   includes the following structure fields:

  277.     - AVFormatContext.title

  278.     - AVFormatContext.author

  279.     - AVFormatContext.copyright

  280.     - AVFormatContext.comment

  281.     - AVFormatContext.album

  282.     - AVFormatContext.year

  283.     - AVFormatContext.track

  284.     - AVFormatContext.genre

  285.     - AVStream.language

  286.     - AVStream.filename

  287.     - AVProgram.provider_name

  288.     - AVProgram.name

  289.     - AVChapter.title