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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. libavcore:   2010-07-21

  6. libavdevice: ?

  7. libavfilter: 2009-10-18

  8. libavformat: ?

  9. libpostproc: ?

  10. libswscale:  ?

  11. libavutil:   2009-03-08

  12. 

  13. 

  14. API changes, most recent first:

  15. 

  16. 2010-12-04 - r25886 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES

  17.   Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h.

  18. 

  19. 2010-12-04 - r25879 - lavu 50.34.0 - av_get_pix_fmt_string()

  20.   Deprecate avcodec_pix_fmt_string() in favor of

  21.   pixdesc.h/av_get_pix_fmt_string().

  22. 

  23. 2010-12-04 - r25878 - lavcore 1.15.0 - av_image_alloc()

  24.   Add av_image_alloc() to libavcore/imgutils.h.

  25. 

  26. 2010-12-02 - r25862 - lavfi 1.67.0 - avfilter_graph_create_filter()

  27.   Add function avfilter_graph_create_filter() in avfiltergraph.h.

  28. 

  29. 2010-11-25 - r25826 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays()

  30.   Add function avfilter_get_video_buffer_ref_from_arrays() in

  31.   avfilter.h.

  32. 

  33. 2010-11-21 - r25787 - lavcore 0.14.0 - audioconvert.h

  34.   Add a public audio channel API in audioconvert.h, and deprecate the

  35.   corresponding functions in libavcodec:

  36.   avcodec_get_channel_name()

  37.   avcodec_get_channel_layout()

  38.   avcodec_get_channel_layout_string()

  39.   avcodec_channel_layout_num_channels()

  40.   and the CH_* macros defined in libavcodec/avcodec.h.

  41. 

  42. 2010-11-21 - r25777 - lavf 52.85.0 - avformat.h

  43.   Add av_append_packet().

  44. 

  45. 2010-11-21 - r25776 - lavc 52.97.0 - avcodec.h

  46.   Add av_grow_packet().

  47. 

  48. 2010-11-17 - r25761 - lavcore 0.13.0 - parseutils.h

  49.   Add av_parse_color() declared in libavcore/parseutils.h.

  50. 

  51. 2010-11-13 - r25745 - lavc 52.95.0 - AVCodecContext

  52.   Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size

  53.   fields.

  54. 

  55. 2010-11-13 - r25740 - lavfi 1.62.0 - avfiltergraph.h

  56.   Make avfiltergraph.h public.

  57. 

  58. 2010-11-13 - r25737 - lavfi 1.61.0 - avfiltergraph.h

  59.   Remove declarations from avfiltergraph.h for the functions:

  60.   avfilter_graph_check_validity()

  61.   avfilter_graph_config_links()

  62.   avfilter_graph_config_formats()

  63.   which are now internal.

  64.   Use avfilter_graph_config() instead.

  65. 

  66. 2010-11-08 - r25708 - lavu 50.33.0 - eval.h

  67.   Deprecate functions:

  68.   av_parse_and_eval_expr(),

  69.   av_parse_expr(),

  70.   av_eval_expr(),

  71.   av_free_expr(),

  72.   in favor of the functions:

  73.   av_expr_parse_and_eval(),

  74.   av_expr_parse(),

  75.   av_expr_eval(),

  76.   av_expr_free().

  77. 

  78. 2010-11-08 - r25707 - lavfi 1.59.0 - avfilter_free()

  79.   Rename avfilter_destroy() to avfilter_free().

  80.   This change breaks libavfilter API/ABI.

  81. 

  82. 2010-11-07 - r25705 - lavfi 1.58.0 - avfiltergraph.h

  83.   Remove graphparser.h header, move AVFilterInOut and

  84.   avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h.

  85. 

  86. 2010-11-07 - r25700 - lavfi 1.57.0 - AVFilterInOut

  87.   Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx.

  88.   This change breaks libavfilter API.

  89. 

  90. 2010-11-04 - r25674 - lavfi 1.56.0 - avfilter_graph_free()

  91.   Rename avfilter_graph_destroy() to avfilter_graph_free().

  92.   This change breaks libavfilter API/ABI.

  93. 

  94. 2010-11-04 - r25673 - lavfi 1.55.0 - avfilter_graph_alloc()

  95.   Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h.

  96. 

  97. 2010-11-02 - r25654 - lavcore 0.12.0 - av_get_bits_per_sample_fmt()

  98.   Add av_get_bits_per_sample_fmt() to libavcore/samplefmt.h and

  99.   deprecate av_get_bits_per_sample_format().

  100. 

  101. 2010-11-02 - r25653 - lavcore 0.11.0 - samplefmt.h

  102.   Add sample format functions in libavcore/samplefmt.h:

  103.   av_get_sample_fmt_name(),

  104.   av_get_sample_fmt(),

  105.   av_get_sample_fmt_string(),

  106.   and deprecate the corresponding libavcodec/audioconvert.h functions:

  107.   avcodec_get_sample_fmt_name(),

  108.   avcodec_get_sample_fmt(),

  109.   avcodec_sample_fmt_string().

  110. 

  111. 2010-11-02 - r25652 - lavcore 0.10.0 - samplefmt.h

  112.   Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum

  113.   SampleFormat.

  114. 

  115. 2010-10-16 - r25502 - lavfi 1.52.0 - avfilter_graph_config()

  116.   Add the function avfilter_graph_config() in avfiltergraph.h.

  117. 

  118. 2010-10-15 - r25493 - lavf 52.83.0 - metadata API

  119.   Change demuxers to export metadata in generic format and

  120.   muxers to accept generic format. Deprecate the public

  121.   conversion API.

  122. 

  123. 2010-10-10 - r25441 - lavfi 1.49.0 - AVFilterLink.time_base

  124.   Add time_base field to AVFilterLink.

  125. 

  126. 2010-09-27 - r25236 - lavu 50.31.0 - av_set_options_string()

  127.   Move av_set_options_string() from libavfilter/parseutils.h to

  128.   libavutil/opt.h.

  129. 

  130. 2010-09-27 - r25227 - lavfi 1.47.0 - AVFilterLink

  131.   Make the AVFilterLink fields srcpad and dstpad store the pointers to

  132.   the source and destination pads, rather than their indexes.

  133. 

  134. 2010-09-27 - r25225 - lavu 50.30.0 - av_get_token()

  135.   Move av_get_token() from libavfilter/parseutils.h to

  136.   libavutil/avstring.h.

  137. 

  138. 2010-09-26 - r32368 - lsws 0.12.0 - swscale.h

  139.   Add the functions sws_alloc_context() and sws_init_context().

  140. 

  141. 2010-09-26 - r25210 - lavu 50.29.0 - opt.h

  142.   Move libavcodec/opt.h to libavutil/opt.h.

  143. 

  144. 2010-09-24 - r25174 - lavu 50.28.0 - av_log_set_flags()

  145.   Default of av_log() changed due to many problems to the old no repeat

  146.   detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before

  147.   enabling it for your app!.

  148. 

  149. 2010-09-24 - r25167 - lavc 52.90.0 - av_opt_show2()

  150.   Deprecate av_opt_show() in favor or av_opt_show2().

  151. 

  152. 2010-09-14 - r25120 - lavu 50.27.0 - av_popcount()

  153.   Add av_popcount() to libavutil/common.h.

  154. 

  155. 2010-09-08 - r25076 - lavu 50.26.0 - av_get_cpu_flags()

  156.   Add av_get_cpu_flags().

  157. 

  158. 2010-09-07 - r25067 - lavcore 0.9.0 - av_image_copy()

  159.   Add av_image_copy().

  160. 

  161. 2010-09-07 - r25064 - lavcore 0.8.0 - av_image_copy_plane()

  162.   Add av_image_copy_plane().

  163. 

  164. 2010-09-07 - r25057 - lavcore 0.7.0 - imgutils.h

  165.   Adopt hierarchical scheme for the imgutils.h function names,

  166.   deprecate the old names.

  167. 

  168. 2010-09-04 - r25040 - lavu 50.25.0 - AV_CPU_FLAG_*

  169.   Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor

  170.   of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.

  171. 

  172. 2010-08-26 - r24936 - lavc 52.87.0 - avcodec_get_channel_layout()

  173.   Add avcodec_get_channel_layout() in audioconvert.h.

  174. 

  175. 2010-08-20 - r24851 - lavcore 0.6.0 - av_fill_image_max_pixsteps()

  176.   Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().

  177. 

  178. 2010-08-18 - r24827 - lavcore 0.5.0 - av_fill_image_max_pixstep()

  179.   Add av_fill_image_max_pixstep() in imgutils.h.

  180. 

  181. 2010-08-17 - r24814 - lavu 50.24.0 - AV_NE()

  182.   Add the AV_NE macro.

  183. 

  184. 2010-08-17 - r24811 - lavfi 1.36.0 - audio framework

  185.   Implement AVFilterBufferRefAudioProps struct for audio properties,

  186.   get_audio_buffer(), filter_samples() functions and related changes.

  187. 

  188. 2010-08-12 - r24787 - lavcore 0.4.0 - av_get_image_linesize()

  189.   Add av_get_image_linesize() in imgutils.h.

  190. 

  191. 2010-08-11 - r24773 - lavfi 1.34.0 - AVFilterBufferRef

  192.   Resize data and linesize arrays in AVFilterBufferRef to 8.

  193. 

  194.   This change breaks libavfilter API/ABI.

  195. 

  196. 2010-08-11 - r24768 - lavc 52.85.0 - av_picture_data_copy()

  197.   Add av_picture_data_copy in avcodec.h.

  198. 

  199. 2010-08-11 - r24765 - lavfi 1.33.0 - avfilter_open()

  200.   Change avfilter_open() signature:

  201.   AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->

  202.   int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);

  203. 

  204.   This change breaks libavfilter API/ABI.

  205. 

  206. 2010-08-11 - r24763 - lavfi 1.32.0 - AVFilterBufferRef

  207.   Add a type field to AVFilterBufferRef, and move video specific

  208.   properties to AVFilterBufferRefVideoProps.

  209. 

  210.   This change breaks libavfilter API/ABI.

  211. 

  212. 2010-08-07 - r24732 - lavfi 1.31.0 - AVFilterLink

  213.   Rename AVFilterLink fields:

  214.   AVFilterLink.srcpic    ->  AVFilterLink.src_buf

  215.   AVFilterLink.cur_pic   ->  AVFilterLink.cur_buf

  216.   AVFilterLink.outpic    ->  AVFilterLink.out_buf

  217. 

  218. 2010-08-07 - r24731 - lavfi 1.30.0

  219.   Rename functions and fields:

  220.   avfilter_(un)ref_pic       -> avfilter_(un)ref_buffer

  221.   avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props

  222.   AVFilterBufferRef.pic      -> AVFilterBufferRef.buffer

  223. 

  224. 2010-08-07 - r24730 - lavfi 1.29.0 - AVFilterBufferRef

  225.   Rename AVFilterPicRef to AVFilterBufferRef.

  226. 

  227. 2010-08-07 - r24728 - lavfi 1.28.0 - AVFilterBuffer

  228.   Move format field from AVFilterBuffer to AVFilterPicRef.

  229. 

  230. 2010-08-06 - r24709 - lavcore 0.3.0 - av_check_image_size()

  231.   Deprecate avcodec_check_dimensions() in favor of the function

  232.   av_check_image_size() defined in libavcore/imgutils.h.

  233. 

  234. 2010-07-30 - r24592 - lavfi 1.27.0 - AVFilterBuffer

  235.   Increase size of the arrays AVFilterBuffer.data and

  236.   AVFilterBuffer.linesize from 4 to 8.

  237. 

  238.   This change breaks libavfilter ABI.

  239. 

  240. 2010-07-29 - r24583 - lavcore 0.2.0 - imgutils.h

  241.   Add functions av_fill_image_linesizes() and

  242.   av_fill_image_pointers(), declared in libavcore/imgutils.h.

  243. 

  244. 2010-07-27 - r24518 - lavcore 0.1.0 - parseutils.h

  245.   Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()

  246.   defined in libavcodec in favor of the newly added functions

  247.   av_parse_video_size() and av_parse_video_rate() declared in

  248.   libavcore/parseutils.h.

  249. 

  250. 2010-07-23 - r24439 - lavu 50.23.0 - mathematics.h

  251.   Add the M_PHI constant definition.

  252. 

  253. 2010-07-22 - r24424 - lavfi 1.26.0 - media format generalization

  254.   Add a type field to AVFilterLink.

  255. 

  256.   Change the field types:

  257.   enum PixelFormat format   -> int format   in AVFilterBuffer

  258.   enum PixelFormat *formats -> int *formats in AVFilterFormats

  259.   enum PixelFormat *format  -> int format   in AVFilterLink

  260. 

  261.   Change the function signatures:

  262.   AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->

  263.   AVFilterFormats *avfilter_make_format_list(const int *fmts);

  264. 

  265.   int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->

  266.   int avfilter_add_format    (AVFilterFormats **avff, int fmt);

  267. 

  268.   AVFilterFormats *avfilter_all_colorspaces(void); ->

  269.   AVFilterFormats *avfilter_all_formats    (enum AVMediaType type);

  270. 

  271.   This change breaks libavfilter API/ABI.

  272. 

  273. 2010-07-21 - r24393 - lavcore 0.0.0

  274.   Add libavcore.

  275. 

  276. 2010-07-17 - r24291 - lavfi 1.25.0 - AVFilterBuffer

  277.   Remove w and h fields from AVFilterBuffer.

  278. 

  279. 2010-07-17 - r24284 - lavfi 1.24.0 - AVFilterBuffer

  280.   Rename AVFilterPic to AVFilterBuffer.

  281. 

  282. 2010-07-17 - r24278 - lavf 52.74.0 - url_fskip()

  283.   Make url_fskip() return an int error code instead of void.

  284. 

  285. 2010-07-11 - r24199 - lavc 52.83.0

  286.   Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.

  287.   Add AVLPCType enum.

  288.   Deprecate AVCodecContext.use_lpc.

  289. 

  290. 2010-07-11 - r24185 - lavc 52.82.0 - avsubtitle_free()

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

  292.   avcodec_decode_subtitle.

  293. 

  294. 2010-07-11 - r24174 - lavu 50.22.0 - bswap.h and intreadwrite.h

  295.   Make the bswap.h and intreadwrite.h API public.

  296. 

  297. 2010-07-08 - r24101 - lavu 50.21.0 - pixdesc.h

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

  299. 

  300. 2010-07-07 - r24091 - lavfi 1.21.0 - avfilter_copy_picref_props()

  301.   Add avfilter_copy_picref_props().

  302. 

  303. 2010-07-03 - r24021 - lavc 52.79.0

  304.   Add FF_COMPLIANCE_UNOFFICIAL and change all instances of

  305.   FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.

  306. 

  307. 2010-07-02 - r23985 - lavu 50.20.0 - lfg.h

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

  309.   lfg.h.

  310. 

  311. 2010-06-28 - r23835 - lavfi 1.20.1 - av_parse_color()

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

  313.   set the alpha value to 255 by default.

  314. 

  315. 2010-06-22 - r23706 - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class

  316.   Add priv_data_size and priv_data_class to URLProtocol.

  317. 

  318. 2010-06-22 - r23704 - lavf 52.70.0 - url_alloc(), url_connect()

  319.   Add url_alloc() and url_connect().

  320. 

  321. 2010-06-22 - r23702 - lavf 52.69.0 - av_register_protocol2()

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

  323. 

  324. 2010-06-09 - r23551 - lavu 50.19.0 - av_compare_mod()

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

  326. 

  327. 2010-06-05 - r23485 - lavu 50.18.0 - eval API

  328.   Make the eval API public.

  329. 

  330. 2010-06-04 - r23461 - lavu 50.17.0 - AV_BASE64_SIZE

  331.   Add AV_BASE64_SIZE() macro.

  332. 

  333. 2010-06-02 - r23421 - lavc 52.73.0 - av_get_codec_tag_string()

  334.   Add av_get_codec_tag_string().

  335. 

  336. 2010-06-01 - r31301 - lsws 0.11.0 - convertPalette API

  337.   Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().

  338. 

  339. 2010-05-26 - r23334 - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL

  340.   Add CODEC_CAP_EXPERIMENTAL flag.

  341. 

  342. 2010-05-23 - r23255 - lavu 50.16.0 - av_get_random_seed()

  343.   Add av_get_random_seed().

  344. 

  345. 2010-05-18 - r23161 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT

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

  347. 

  348. 2010-05-09 - r23066 - lavfi 1.20.0 - AVFilterPicRef

  349.   Add interlaced and top_field_first fields to AVFilterPicRef.

  350. 

  351. 2010-05-01 - r23002 - lavf 52.62.0 - probe function

  352.   Add av_probe_input_format2 to API, it allows ignoring probe

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

  354. 

  355. 2010-04-01 - r22806 - lavf 52.61.0 - metadata API

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

  357.   existing tags.

  358. 

  359. 2010-04-01 - r22753 - lavc 52.66.0

  360.   Add avcodec_get_edge_width().

  361. 

  362. 2010-03-31 - r22750 - lavc 52.65.0

  363.   Add avcodec_copy_context().

  364. 

  365. 2010-03-31 - r22748 - lavf 52.60.0 - av_match_ext()

  366.   Make av_match_ext() public.

  367. 

  368. 2010-03-31 - r22736 - lavu 50.14.0 - AVMediaType

  369.   Move AVMediaType enum from libavcodec to libavutil.

  370. 

  371. 2010-03-31 - r22735 - lavc 52.64.0 - AVMediaType

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

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

  374. 

  375. 2010-03-25 - r22684 - lavu 50.13.0 - av_strerror()

  376.   Implement av_strerror().

  377. 

  378. 2010-03-23 - r22649 - lavc 52.60.0 - av_dct_init()

  379.   Support DCT-I and DST-I.

  380. 

  381. 2010-03-15 - r22540 - lavf 52.56.0 - AVFormatContext.start_time_realtime

  382.   Add AVFormatContext.start_time_realtime field.

  383. 

  384. 2010-03-13 - r22506 - lavfi 1.18.0 - AVFilterPicRef.pos

  385.   Add AVFilterPicRef.pos field.

  386. 

  387. 2010-03-13 - r22501 - lavu 50.12.0 - error.h

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

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

  390. 

  391. 2010-03-07 - r22291 - lavc 52.56.0 - avfft.h

  392.   Add public FFT interface.

  393. 

  394. 2010-03-06 - r22251 - lavu 50.11.0 - av_stristr()

  395.   Add av_stristr().

  396. 

  397. 2010-03-03 - r22174 - lavu 50.10.0 - av_tree_enumerate()

  398.   Add av_tree_enumerate().

  399. 

  400. 2010-02-07 - r21673 - lavu 50.9.0 - av_compare_ts()

  401.   Add av_compare_ts().

  402. 

  403. 2010-02-05 - r30513 - lsws 0.10.0 - sws_getCoefficients()

  404.   Add sws_getCoefficients().

  405. 

  406. 2010-02-01 - r21587 - lavf 52.50.0 - metadata API

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

  408.   'year' -> 'date'.

  409. 

  410. 2010-01-30 - r21545 - lavu 50.8.0 - av_get_pix_fmt()

  411.   Add av_get_pix_fmt().

  412. 

  413. 2010-01-21 - r30381 - lsws 0.9.0 - sws_scale()

  414.   Change constness attributes of sws_scale() parameters.

  415. 

  416. 2010-01-10 - r21121 - lavfi 1.15.0 - avfilter_graph_config_links()

  417.   Add a log_ctx parameter to avfilter_graph_config_links().

  418. 

  419. 2010-01-07 - r30236 - lsws 0.8.0 - sws_isSupported{In,Out}put()

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

  421. 

  422. 2010-01-06 - r21035 - lavfi 1.14.0 - avfilter_add_colorspace()

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

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

  425. 

  426. 2010-01-03 - r21007 - lavfi 1.13.0 - avfilter_add_colorspace()

  427.   Add avfilter_add_colorspace().

  428. 

  429. 2010-01-02 - r20998 - lavf 52.46.0 - av_match_ext()

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

  431. 

  432. 2010-01-01 - r20991 - lavf 52.45.0 - av_guess_format()

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

  434. 

  435. 2009-12-13 - r20834 - lavf 52.43.0 - metadata API

  436.   Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and

  437.   AV_METADATA_DONT_STRDUP_VAL.

  438. 

  439. 2009-12-13 - r20829 - lavu 50.7.0 - avstring.h API

  440.   Add av_d2str().

  441. 

  442. 2009-12-13 - r20826 - lavc 52.42.0 - AVStream

  443.   Add avg_frame_rate.

  444. 

  445. 2009-12-12 - r20808 - lavu 50.6.0 - av_bmg_next()

  446.   Introduce the av_bmg_next() function.

  447. 

  448. 2009-12-05 - r20734 - lavfi 1.12.0 - avfilter_draw_slice()

  449.   Add a slice_dir parameter to avfilter_draw_slice().

  450. 

  451. 2009-11-26 - r20611 - lavfi 1.11.0 - AVFilter

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

  453. 

  454. 2009-11-25 - r20607 - lavfi 1.10.0 - avfilter_next()

  455.   Introduce the avfilter_next() function.

  456. 

  457. 2009-11-25 - r20605 - lavfi 1.9.0 - avfilter_register()

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

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

  460. 

  461. 2009-11-25 - r20603 - lavu 50.5.0 - pixdesc.h API

  462.   Make the pixdesc.h API public.

  463. 

  464. 2009-10-27 - r20385 - lavfi 1.5.0 - AVFilter.next

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

  466.   registration and management of the registered filters.

  467. 

  468. 2009-10-23 - r20356 - lavfi 1.4.1 - AVFilter.description

  469.   Add a description field to AVFilter.

  470. 

  471. 2009-10-19 - r20302 - lavfi 1.3.0 - avfilter_make_format_list()

  472.   Change the interface of avfilter_make_format_list() from

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

  474.   avfilter_make_format_list(enum PixelFormat *pix_fmts).

  475. 

  476. 2009-10-18 - r20272 - lavfi 1.0.0 - avfilter_get_video_buffer()

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

  478.   parameters to it.

  479. 

  480. 2009-10-07 - r20189 - lavfi 0.5.1 - AVFilterPic

  481.   Add w and h fields to AVFilterPic.

  482. 

  483. 2009-06-22 - r19250 - lavf 52.34.1 - AVFormatContext.packet_size

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

  485. 

  486. 2009-06-19 - r19222 - lavc 52.32.0 - AVSubtitle.pts

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

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

  489.   not work right without this.

  490. 

  491. 2009-06-03 - r19078 - lavc 52.30.2 - AV_PKT_FLAG_KEY

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

  493.   major version. Use AV_PKT_FLAG_KEY instead.

  494. 

  495. 2009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register()

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

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

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

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

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

  501.   correctly in a multi-threaded application.

  502. 

  503. 2009-04-30 - r18719 - lavc 52.28.0 - av_free_packet()

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

  505. 

  506. 2009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree()

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

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

  509. 

  510. 2009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle

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

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

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

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

  515. 

  516. 2009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space()

  517.   Introduce the av_fifo_space() function.

  518. 

  519. 2009-04-02 - r18317 - lavc 52.23.0 - AVPacket

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

  521.   libavcodec/avcodec.h.

  522. 

  523. 2009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats

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

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

  526.   Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and

  527.   PIX_FMT_BGR32_1 are now macros.

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

  529.   Re-sort the enum PixelFormat list accordingly.

  530.   This change breaks API/ABI backward compatibility.

  531. 

  532. 2009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants

  533.   Add the enum PixelFormat values:

  534.   PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,

  535.   PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.

  536. 

  537. 2009-03-21 - r18116 - lavu 50.0.0  - av_random*

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

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

  540.   instead.

  541. 

  542. 2009-03-08 - r17869 - lavu 50.0.0  - AVFifoBuffer

  543.   av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped

  544.   and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write

  545.   and av_fifo_realloc2.

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

  547.   was changed to match av_fifo_generic_write.

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

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

  550. 

  551. 2009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API

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

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

  554.   includes the following structure fields:

  555.     - AVFormatContext.title

  556.     - AVFormatContext.author

  557.     - AVFormatContext.copyright

  558.     - AVFormatContext.comment

  559.     - AVFormatContext.album

  560.     - AVFormatContext.year

  561.     - AVFormatContext.track

  562.     - AVFormatContext.genre

  563.     - AVStream.language

  564.     - AVStream.filename

  565.     - AVProgram.provider_name

  566.     - AVProgram.name

  567.     - AVChapter.title