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  1. Never assume the API of libav* to be stable unless at least 1 month has passed
  2. since the last major version increase.
  3. The last version increases were:
  4. libavcodec: 2011-04-18
  5. libavdevice: 2011-04-18
  6. libavfilter: 2011-04-18
  7. libavformat: 2011-04-18
  8. libpostproc: 2011-04-18
  9. libswscale: 2011-06-20
  10. libavutil: 2011-04-18
  11. API changes, most recent first:
  12. 2011-xx-xx - xxxxxxx - lavc 53.25.0
  13. Add nb_samples and extended_data fields to AVFrame.
  14. Deprecate AVCODEC_MAX_AUDIO_FRAME_SIZE.
  15. Deprecate avcodec_decode_audio3() in favor of avcodec_decode_audio4().
  16. avcodec_decode_audio4() writes output samples to an AVFrame, which allows
  17. audio decoders to use get_buffer().
  18. 2011-xx-xx - xxxxxxx - lavc 53.24.0
  19. Change AVFrame.data[4]/base[4]/linesize[4]/error[4] to [8] at next major bump.
  20. Change AVPicture.data[4]/linesize[4] to [8] at next major bump.
  21. Change AVCodecContext.error[4] to [8] at next major bump.
  22. Add AV_NUM_DATA_POINTERS to simplify the bump transition.
  23. 2011-11-23 - bbb46f3 - lavu 51.18.0
  24. Add av_samples_get_buffer_size(), av_samples_fill_arrays(), and
  25. av_samples_alloc(), to samplefmt.h.
  26. 2011-11-23 - 8889cc4 - lavu 51.17.0
  27. Add planar sample formats and av_sample_fmt_is_planar() to samplefmt.h.
  28. 2011-11-19 - f3a29b7 - lavc 53.21.0
  29. Move some AVCodecContext fields to a new private struct, AVCodecInternal,
  30. which is accessed from a new field, AVCodecContext.internal.
  31. - fields moved:
  32. AVCodecContext.internal_buffer --> AVCodecInternal.buffer
  33. AVCodecContext.internal_buffer_count --> AVCodecInternal.buffer_count
  34. AVCodecContext.is_copy --> AVCodecInternal.is_copy
  35. 2011-11-16 - 6270671 - lavu 51.16.0
  36. Add av_timegm()
  37. 2011-11-13 - lavf 53.15.0
  38. New interrupt callback API, allowing per-AVFormatContext/AVIOContext
  39. interrupt callbacks.
  40. 6aa0b98 Add AVIOInterruptCB struct and the interrupt_callback field to
  41. AVFormatContext.
  42. 1dee0ac Add avio_open2() with additional parameters. Those are
  43. an interrupt callback and an options AVDictionary.
  44. This will allow passing AVOptions to protocols after lavf
  45. 54.0.
  46. 2011-11-06 - ba04ecf - lavu 51.14.0
  47. Add av_strcasecmp() and av_strncasecmp() to avstring.h.
  48. 2011-11-06 - 07b172f - lavu 51.13.0
  49. Add av_toupper()/av_tolower()
  50. 2011-11-05 - b6d08f4 - lavf 53.13.0
  51. Add avformat_network_init()/avformat_network_uninit()
  52. 2011-10-27 - 512557b - lavc 53.15.0
  53. Remove avcodec_parse_frame.
  54. Deprecate AVCodecContext.parse_only and CODEC_CAP_PARSE_ONLY.
  55. 2011-10-19 - 569129a - lavf 53.10.0
  56. Add avformat_new_stream(). Deprecate av_new_stream().
  57. 2011-10-13 - b631fba - lavf 53.9.0
  58. Add AVFMT_NO_BYTE_SEEK AVInputFormat flag.
  59. 2011-10-12 - lavu 51.12.0
  60. AVOptions API rewrite.
  61. - 145f741 FF_OPT_TYPE* renamed to AV_OPT_TYPE_*
  62. - new setting/getting functions with slightly different semantics:
  63. dac66da av_set_string3 -> av_opt_set
  64. av_set_double -> av_opt_set_double
  65. av_set_q -> av_opt_set_q
  66. av_set_int -> av_opt_set_int
  67. 41d9d51 av_get_string -> av_opt_get
  68. av_get_double -> av_opt_get_double
  69. av_get_q -> av_opt_get_q
  70. av_get_int -> av_opt_get_int
  71. - 8c5dcaa trivial rename av_next_option -> av_opt_next
  72. - 641c7af new functions - av_opt_child_next, av_opt_child_class_next
  73. and av_opt_find2()
  74. 2011-09-03 - fb4ca26 - lavc 53.10.0
  75. lavf 53.6.0
  76. lsws 2.1.0
  77. Add {avcodec,avformat,sws}_get_class().
  78. 2011-09-03 - c11fb82 - lavu 51.10.0
  79. Add AV_OPT_SEARCH_FAKE_OBJ flag for av_opt_find() function.
  80. 2011-08-26 - f2011ed - lavu 51.9.0
  81. Add av_fifo_peek2(), deprecate av_fifo_peek().
  82. 2011-08-16 - 48f9e45 - lavf 53.4.0
  83. Add avformat_query_codec().
  84. 2011-08-16 - bca06e7 - lavc 53.8.0
  85. Add avcodec_get_type().
  86. 2011-08-06 - 2f63440 - lavf 53.4.0
  87. Add error_recognition to AVFormatContext.
  88. 2011-08-02 - 9d39cbf - lavc 53.7.1
  89. Add AV_PKT_FLAG_CORRUPT AVPacket flag.
  90. 2011-07-10 - a67c061 - lavf 53.3.0
  91. Add avformat_find_stream_info(), deprecate av_find_stream_info().
  92. 2011-07-10 - 0b950fe - lavc 53.6.0
  93. Add avcodec_open2(), deprecate avcodec_open().
  94. 2011-06-23 - 67e9ae1 - lavu 51.8.0 - attributes.h
  95. Add av_printf_format().
  96. 2011-06-16 - 05e84c9, 25de595 - lavf 53.2.0 - avformat.h
  97. Add avformat_open_input and avformat_write_header().
  98. Deprecate av_open_input_stream, av_open_input_file,
  99. AVFormatParameters and av_write_header.
  100. 2011-06-16 - 7e83e1c, dc59ec5 - lavu 51.7.0 - opt.h
  101. Add av_opt_set_dict() and av_opt_find().
  102. Deprecate av_find_opt().
  103. Add AV_DICT_APPEND flag.
  104. 2011-06-10 - cb7c11c - lavu 51.6.0 - opt.h
  105. Add av_opt_flag_is_set().
  106. 2011-06-08 - d9f80ea - lavu 51.5.0 - AVMetadata
  107. Move AVMetadata from lavf to lavu and rename it to
  108. AVDictionary -- new installed header dict.h.
  109. All av_metadata_* functions renamed to av_dict_*.
  110. 2011-06-07 - a6703fa - lavu 51.4.0 - av_get_bytes_per_sample()
  111. Add av_get_bytes_per_sample() in libavutil/samplefmt.h.
  112. Deprecate av_get_bits_per_sample_fmt().
  113. 2011-06-05 - b39b062 - lavu 51.3.0 - opt.h
  114. Add av_opt_free convenience function.
  115. 2011-05-28 - 0420bd7 - lavu 51.2.0 - pixdesc.h
  116. Add av_get_pix_fmt_name() in libavutil/pixdesc.h, and deprecate
  117. avcodec_get_pix_fmt_name() in libavcodec/avcodec.h in its favor.
  118. 2011-05-25 - 30315a8 - lavf 53.1.0 - avformat.h
  119. Add fps_probe_size to AVFormatContext.
  120. 2011-05-18 - 64150ff - lavc 53.4.0 - AVCodecContext.request_sample_fmt
  121. Add request_sample_fmt field to AVCodecContext.
  122. 2011-05-10 - 188dea1 - lavc 53.3.0 - avcodec.h
  123. Deprecate AVLPCType and the following fields in
  124. AVCodecContext: lpc_coeff_precision, prediction_order_method,
  125. min_partition_order, max_partition_order, lpc_type, lpc_passes.
  126. Corresponding FLAC encoder options should be used instead.
  127. 2011-04-26 - bebe72f - lavu 51.1.0 - avutil.h
  128. Add AVPictureType enum and av_get_picture_type_char(), deprecate
  129. FF_*_TYPE defines and av_get_pict_type_char() defined in
  130. libavcodec/avcodec.h.
  131. 2011-04-26 - 10d3940 - lavfi 2.3.0 - avfilter.h
  132. Add pict_type and key_frame fields to AVFilterBufferRefVideo.
  133. 2011-04-26 - 7a11c82 - lavfi 2.2.0 - vsrc_buffer
  134. Add sample_aspect_ratio fields to vsrc_buffer arguments
  135. 2011-04-21 - 94f7451 - lavc 53.1.0 - avcodec.h
  136. Add CODEC_CAP_SLICE_THREADS for codecs supporting sliced threading.
  137. 2011-04-15 - lavc 52.120.0 - avcodec.h
  138. AVPacket structure got additional members for passing side information:
  139. 4de339e introduce side information for AVPacket
  140. 2d8591c make containers pass palette change in AVPacket
  141. 2011-04-12 - lavf 52.107.0 - avio.h
  142. Avio cleanup, part II - deprecate the entire URLContext API:
  143. 175389c add avio_check as a replacement for url_exist
  144. ff1ec0c add avio_pause and avio_seek_time as replacements
  145. for _av_url_read_fseek/fpause
  146. cdc6a87 deprecate av_protocol_next(), avio_enum_protocols
  147. should be used instead.
  148. 80c6e23 rename url_set_interrupt_cb->avio_set_interrupt_cb.
  149. f87b1b3 rename open flags: URL_* -> AVIO_*
  150. f8270bb add avio_enum_protocols.
  151. 5593f03 deprecate URLProtocol.
  152. c486dad deprecate URLContext.
  153. 026e175 deprecate the typedef for URLInterruptCB
  154. 8e76a19 deprecate av_register_protocol2.
  155. b840484 deprecate URL_PROTOCOL_FLAG_NESTED_SCHEME
  156. 1305d93 deprecate av_url_read_seek
  157. fa104e1 deprecate av_url_read_pause
  158. 727c7aa deprecate url_get_filename().
  159. 5958df3 deprecate url_max_packet_size().
  160. 1869ea0 deprecate url_get_file_handle().
  161. 32a97d4 deprecate url_filesize().
  162. e52a914 deprecate url_close().
  163. 58a48c6 deprecate url_seek().
  164. 925e908 deprecate url_write().
  165. dce3756 deprecate url_read_complete().
  166. bc371ac deprecate url_read().
  167. 0589da0 deprecate url_open().
  168. 62eaaea deprecate url_connect.
  169. 5652bb9 deprecate url_alloc.
  170. 333e894 deprecate url_open_protocol
  171. e230705 deprecate url_poll and URLPollEntry
  172. 2011-04-10 - lavu 50.40.0 - pixfmt.h
  173. Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
  174. 2011-04-08 - lavf 52.106.0 - avformat.h
  175. Minor avformat.h cleanup:
  176. a9bf9d8 deprecate av_guess_image2_codec
  177. c3675df rename avf_sdp_create->av_sdp_create
  178. 2011-04-03 - lavf 52.105.0 - avio.h
  179. Large-scale renaming/deprecating of AVIOContext-related functions:
  180. 724f6a0 deprecate url_fdopen
  181. 403ee83 deprecate url_open_dyn_packet_buf
  182. 6dc7d80 rename url_close_dyn_buf -> avio_close_dyn_buf
  183. b92c545 rename url_open_dyn_buf -> avio_open_dyn_buf
  184. 8978fed introduce an AVIOContext.seekable field as a replacement for
  185. AVIOContext.is_streamed and url_is_streamed()
  186. b64030f deprecate get_checksum()
  187. 4c4427a deprecate init_checksum()
  188. 4ec153b deprecate udp_set_remote_url/get_local_port
  189. 933e90a deprecate av_url_read_fseek/fpause
  190. 8d9769a deprecate url_fileno
  191. b7f2fdd rename put_flush_packet -> avio_flush
  192. 35f1023 deprecate url_close_buf
  193. 83fddae deprecate url_open_buf
  194. d9d86e0 rename url_fprintf -> avio_printf
  195. 59f65d9 deprecate url_setbufsize
  196. 3e68b3b deprecate url_ferror
  197. 66e5b1d deprecate url_feof
  198. e8bb2e2 deprecate url_fget_max_packet_size
  199. 76aa876 rename url_fsize -> avio_size
  200. e519753 deprecate url_fgetc
  201. 655e45e deprecate url_fgets
  202. a2704c9 rename url_ftell -> avio_tell
  203. e16ead0 deprecate get_strz() in favor of avio_get_str
  204. 0300db8,2af07d3 rename url_fskip -> avio_skip
  205. 6b4aa5d rename url_fseek -> avio_seek
  206. 61840b4 deprecate put_tag
  207. 22a3212 rename url_fopen/fclose -> avio_open/close.
  208. 0ac8e2b deprecate put_nbyte
  209. 77eb550 rename put_byte -> avio_w8
  210. put_[b/l]e<type> -> avio_w[b/l]<type>
  211. put_buffer -> avio_write
  212. b7effd4 rename get_byte -> avio_r8,
  213. get_[b/l]e<type> -> avio_r[b/l]<type>
  214. get_buffer -> avio_read
  215. b3db9ce deprecate get_partial_buffer
  216. 8d9ac96 rename av_alloc_put_byte -> avio_alloc_context
  217. 2011-03-25 - 34b47d7 - lavc 52.115.0 - AVCodecContext.audio_service_type
  218. Add audio_service_type field to AVCodecContext.
  219. 2011-03-02 - 863c471 - lavf 52.103.0 - av_pkt_dump2, av_pkt_dump_log2
  220. Add new functions av_pkt_dump2, av_pkt_dump_log2 that uses the
  221. source stream timebase for outputting timestamps. Deprecate
  222. av_pkt_dump and av_pkt_dump_log.
  223. 2011-02-20 - e731b8d - lavf 52.102.0 - avio.h
  224. * e731b8d - rename init_put_byte() to ffio_init_context(), deprecating the
  225. original, and move it to a private header so it is no longer
  226. part of our public API. Instead, use av_alloc_put_byte().
  227. * ae628ec - rename ByteIOContext to AVIOContext.
  228. 2011-02-16 - 09d171b - lavf 52.101.0 - avformat.h
  229. lavu 52.39.0 - parseutils.h
  230. * 610219a - Add av_ prefix to dump_format().
  231. * f6c7375 - Replace parse_date() in lavf with av_parse_time() in lavu.
  232. * ab0287f - Move find_info_tag from lavf to lavu and add av_prefix to it.
  233. 2011-02-15 - lavu 52.38.0 - merge libavcore
  234. libavcore is merged back completely into libavutil
  235. 2011-02-10 - 55bad0c - lavc 52.113.0 - vbv_delay
  236. Add vbv_delay field to AVCodecContext
  237. 2011-02-14 - 24a83bd - lavf 52.100.0 - AV_DISPOSITION_CLEAN_EFFECTS
  238. Add AV_DISPOSITION_CLEAN_EFFECTS disposition flag.
  239. 2011-02-14 - 910b5b8 - lavfi 1.76.0 - AVFilterLink sample_aspect_ratio
  240. Add sample_aspect_ratio field to AVFilterLink.
  241. 2011-02-10 - 12c14cd - lavf 52.99.0 - AVStream.disposition
  242. Add AV_DISPOSITION_HEARING_IMPAIRED and AV_DISPOSITION_VISUAL_IMPAIRED.
  243. 2011-02-09 - 5592734 - lavc 52.112.0 - avcodec_thread_init()
  244. Deprecate avcodec_thread_init()/avcodec_thread_free() use; instead
  245. set thread_count before calling avcodec_open.
  246. 2011-02-09 - 778b08a - lavc 52.111.0 - threading API
  247. Add CODEC_CAP_FRAME_THREADS with new restrictions on get_buffer()/
  248. release_buffer()/draw_horiz_band() callbacks for appropriate codecs.
  249. Add thread_type and active_thread_type fields to AVCodecContext.
  250. 2011-02-08 - 3940caa - lavf 52.98.0 - av_probe_input_buffer
  251. Add av_probe_input_buffer() to avformat.h for probing format from a
  252. ByteIOContext.
  253. 2011-02-06 - fe174fc - lavf 52.97.0 - avio.h
  254. Add flag for non-blocking protocols: URL_FLAG_NONBLOCK
  255. 2011-02-04 - f124b08 - lavf 52.96.0 - avformat_free_context()
  256. Add avformat_free_context() in avformat.h.
  257. 2011-02-03 - f5b82f4 - lavc 52.109.0 - add CODEC_ID_PRORES
  258. Add CODEC_ID_PRORES to avcodec.h.
  259. 2011-02-03 - fe9a3fb - lavc 52.109.0 - H.264 profile defines
  260. Add defines for H.264 * Constrained Baseline and Intra profiles
  261. 2011-02-02 - lavf 52.95.0
  262. * 50196a9 - add a new installed header version.h.
  263. * 4efd5cf, dccbd97, 93b78d1 - add several variants of public
  264. avio_{put,get}_str* functions. Deprecate corresponding semi-public
  265. {put,get}_str*.
  266. 2011-02-02 - dfd2a00 - lavu 50.37.0 - log.h
  267. Make av_dlog public.
  268. 2011-01-15 - r26374 - lavfi 1.74.0 - AVFilterBufferRefAudioProps
  269. Rename AVFilterBufferRefAudioProps.samples_nb to nb_samples.
  270. 2011-01-14 - r26330 - lavf 52.93.0 - av_metadata_copy()
  271. Add av_metadata_copy() in avformat.h.
  272. 2011-01-07 - r26262 - lavc 52.107.0 - deprecate reordered_opaque
  273. Deprecate reordered_opaque in favor of pkt_pts/dts.
  274. 2011-01-07 - r26261 - lavc 52.106.0 - pkt_dts
  275. Add pkt_dts to AVFrame, this will in the future allow multithreading decoders
  276. to not mess up dts.
  277. 2011-01-07 - r26260 - lavc 52.105.0 - pkt_pts
  278. Add pkt_pts to AVFrame.
  279. 2011-01-07 - r26259 - lavc 52.104.0 - av_get_profile_name()
  280. Add av_get_profile_name to libavcodec/avcodec.h.
  281. 2010-12-27 - r26108 - lavfi 1.71.0 - AV_PERM_NEG_LINESIZES
  282. Add AV_PERM_NEG_LINESIZES in avfilter.h.
  283. 2010-12-27 - r26104 - lavf 52.91.0 - av_find_best_stream()
  284. Add av_find_best_stream to libavformat/avformat.h.
  285. 2010-12-27 - r26103 - lavf 52.90.0
  286. Add AVFMT_NOSTREAMS flag for formats with no streams,
  287. like e.g. text metadata.
  288. 2010-12-22 - r26073 - lavu 50.36.0 - file.h
  289. Add functions av_file_map() and av_file_unmap() in file.h.
  290. 2010-12-19 - r26056 - lavu 50.35.0 - error.h
  291. Add "not found" error codes:
  292. AVERROR_DEMUXER_NOT_FOUND
  293. AVERROR_MUXER_NOT_FOUND
  294. AVERROR_DECODER_NOT_FOUND
  295. AVERROR_ENCODER_NOT_FOUND
  296. AVERROR_PROTOCOL_NOT_FOUND
  297. AVERROR_FILTER_NOT_FOUND
  298. AVERROR_BSF_NOT_FOUND
  299. AVERROR_STREAM_NOT_FOUND
  300. 2010-12-09 - r25923 - lavcore 0.16.0 - avcore.h
  301. Move AV_NOPTS_VALUE, AV_TIME_BASE, AV_TIME_BASE_Q symbols from
  302. avcodec.h to avcore.h.
  303. 2010-12-04 - r25886 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES
  304. Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h.
  305. 2010-12-04 - r25879 - lavu 50.34.0 - av_get_pix_fmt_string()
  306. Deprecate avcodec_pix_fmt_string() in favor of
  307. pixdesc.h/av_get_pix_fmt_string().
  308. 2010-12-04 - r25878 - lavcore 0.15.0 - av_image_alloc()
  309. Add av_image_alloc() to libavcore/imgutils.h.
  310. 2010-12-02 - r25862 - lavfi 1.67.0 - avfilter_graph_create_filter()
  311. Add function avfilter_graph_create_filter() in avfiltergraph.h.
  312. 2010-11-25 - r25826 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays()
  313. Add function avfilter_get_video_buffer_ref_from_arrays() in
  314. avfilter.h.
  315. 2010-11-21 - r25787 - lavcore 0.14.0 - audioconvert.h
  316. Add a public audio channel API in audioconvert.h, and deprecate the
  317. corresponding functions in libavcodec:
  318. avcodec_get_channel_name()
  319. avcodec_get_channel_layout()
  320. avcodec_get_channel_layout_string()
  321. avcodec_channel_layout_num_channels()
  322. and the CH_* macros defined in libavcodec/avcodec.h.
  323. 2010-11-21 - r25777 - lavf 52.85.0 - avformat.h
  324. Add av_append_packet().
  325. 2010-11-21 - r25776 - lavc 52.97.0 - avcodec.h
  326. Add av_grow_packet().
  327. 2010-11-17 - r25761 - lavcore 0.13.0 - parseutils.h
  328. Add av_parse_color() declared in libavcore/parseutils.h.
  329. 2010-11-13 - r25745 - lavc 52.95.0 - AVCodecContext
  330. Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size
  331. fields.
  332. 2010-11-13 - r25740 - lavfi 1.62.0 - avfiltergraph.h
  333. Make avfiltergraph.h public.
  334. 2010-11-13 - r25737 - lavfi 1.61.0 - avfiltergraph.h
  335. Remove declarations from avfiltergraph.h for the functions:
  336. avfilter_graph_check_validity()
  337. avfilter_graph_config_links()
  338. avfilter_graph_config_formats()
  339. which are now internal.
  340. Use avfilter_graph_config() instead.
  341. 2010-11-08 - r25708 - lavu 50.33.0 - eval.h
  342. Deprecate functions:
  343. av_parse_and_eval_expr(),
  344. av_parse_expr(),
  345. av_eval_expr(),
  346. av_free_expr(),
  347. in favor of the functions:
  348. av_expr_parse_and_eval(),
  349. av_expr_parse(),
  350. av_expr_eval(),
  351. av_expr_free().
  352. 2010-11-08 - r25707 - lavfi 1.59.0 - avfilter_free()
  353. Rename avfilter_destroy() to avfilter_free().
  354. This change breaks libavfilter API/ABI.
  355. 2010-11-07 - r25705 - lavfi 1.58.0 - avfiltergraph.h
  356. Remove graphparser.h header, move AVFilterInOut and
  357. avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h.
  358. 2010-11-07 - r25700 - lavfi 1.57.0 - AVFilterInOut
  359. Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx.
  360. This change breaks libavfilter API.
  361. 2010-11-04 - r25674 - lavfi 1.56.0 - avfilter_graph_free()
  362. Rename avfilter_graph_destroy() to avfilter_graph_free().
  363. This change breaks libavfilter API/ABI.
  364. 2010-11-04 - r25673 - lavfi 1.55.0 - avfilter_graph_alloc()
  365. Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h.
  366. 2010-11-02 - r25654 - lavcore 0.12.0 - av_get_bits_per_sample_fmt()
  367. Add av_get_bits_per_sample_fmt() to libavcore/samplefmt.h and
  368. deprecate av_get_bits_per_sample_format().
  369. 2010-11-02 - r25653 - lavcore 0.11.0 - samplefmt.h
  370. Add sample format functions in libavcore/samplefmt.h:
  371. av_get_sample_fmt_name(),
  372. av_get_sample_fmt(),
  373. av_get_sample_fmt_string(),
  374. and deprecate the corresponding libavcodec/audioconvert.h functions:
  375. avcodec_get_sample_fmt_name(),
  376. avcodec_get_sample_fmt(),
  377. avcodec_sample_fmt_string().
  378. 2010-11-02 - r25652 - lavcore 0.10.0 - samplefmt.h
  379. Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum
  380. SampleFormat.
  381. 2010-10-16 - r25502 - lavfi 1.52.0 - avfilter_graph_config()
  382. Add the function avfilter_graph_config() in avfiltergraph.h.
  383. 2010-10-15 - r25493 - lavf 52.83.0 - metadata API
  384. Change demuxers to export metadata in generic format and
  385. muxers to accept generic format. Deprecate the public
  386. conversion API.
  387. 2010-10-10 - r25441 - lavfi 1.49.0 - AVFilterLink.time_base
  388. Add time_base field to AVFilterLink.
  389. 2010-09-27 - r25236 - lavu 50.31.0 - av_set_options_string()
  390. Move av_set_options_string() from libavfilter/parseutils.h to
  391. libavutil/opt.h.
  392. 2010-09-27 - r25227 - lavfi 1.47.0 - AVFilterLink
  393. Make the AVFilterLink fields srcpad and dstpad store the pointers to
  394. the source and destination pads, rather than their indexes.
  395. 2010-09-27 - r25225 - lavu 50.30.0 - av_get_token()
  396. Move av_get_token() from libavfilter/parseutils.h to
  397. libavutil/avstring.h.
  398. 2010-09-26 - r32368 - lsws 0.12.0 - swscale.h
  399. Add the functions sws_alloc_context() and sws_init_context().
  400. 2010-09-26 - r25210 - lavu 50.29.0 - opt.h
  401. Move libavcodec/opt.h to libavutil/opt.h.
  402. 2010-09-24 - r25174 - lavu 50.28.0 - av_log_set_flags()
  403. Default of av_log() changed due to many problems to the old no repeat
  404. detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before
  405. enabling it for your app!.
  406. 2010-09-24 - r25167 - lavc 52.90.0 - av_opt_show2()
  407. Deprecate av_opt_show() in favor or av_opt_show2().
  408. 2010-09-14 - r25120 - lavu 50.27.0 - av_popcount()
  409. Add av_popcount() to libavutil/common.h.
  410. 2010-09-08 - r25076 - lavu 50.26.0 - av_get_cpu_flags()
  411. Add av_get_cpu_flags().
  412. 2010-09-07 - r25067 - lavcore 0.9.0 - av_image_copy()
  413. Add av_image_copy().
  414. 2010-09-07 - r25064 - lavcore 0.8.0 - av_image_copy_plane()
  415. Add av_image_copy_plane().
  416. 2010-09-07 - r25057 - lavcore 0.7.0 - imgutils.h
  417. Adopt hierarchical scheme for the imgutils.h function names,
  418. deprecate the old names.
  419. 2010-09-04 - r25040 - lavu 50.25.0 - AV_CPU_FLAG_*
  420. Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
  421. of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
  422. 2010-08-26 - r24936 - lavc 52.87.0 - avcodec_get_channel_layout()
  423. Add avcodec_get_channel_layout() in audioconvert.h.
  424. 2010-08-20 - r24851 - lavcore 0.6.0 - av_fill_image_max_pixsteps()
  425. Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().
  426. 2010-08-18 - r24827 - lavcore 0.5.0 - av_fill_image_max_pixstep()
  427. Add av_fill_image_max_pixstep() in imgutils.h.
  428. 2010-08-17 - r24814 - lavu 50.24.0 - AV_NE()
  429. Add the AV_NE macro.
  430. 2010-08-17 - r24811 - lavfi 1.36.0 - audio framework
  431. Implement AVFilterBufferRefAudioProps struct for audio properties,
  432. get_audio_buffer(), filter_samples() functions and related changes.
  433. 2010-08-12 - r24787 - lavcore 0.4.0 - av_get_image_linesize()
  434. Add av_get_image_linesize() in imgutils.h.
  435. 2010-08-11 - r24773 - lavfi 1.34.0 - AVFilterBufferRef
  436. Resize data and linesize arrays in AVFilterBufferRef to 8.
  437. This change breaks libavfilter API/ABI.
  438. 2010-08-11 - r24768 - lavc 52.85.0 - av_picture_data_copy()
  439. Add av_picture_data_copy in avcodec.h.
  440. 2010-08-11 - r24765 - lavfi 1.33.0 - avfilter_open()
  441. Change avfilter_open() signature:
  442. AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
  443. int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
  444. This change breaks libavfilter API/ABI.
  445. 2010-08-11 - r24763 - lavfi 1.32.0 - AVFilterBufferRef
  446. Add a type field to AVFilterBufferRef, and move video specific
  447. properties to AVFilterBufferRefVideoProps.
  448. This change breaks libavfilter API/ABI.
  449. 2010-08-07 - r24732 - lavfi 1.31.0 - AVFilterLink
  450. Rename AVFilterLink fields:
  451. AVFilterLink.srcpic -> AVFilterLink.src_buf
  452. AVFilterLink.cur_pic -> AVFilterLink.cur_buf
  453. AVFilterLink.outpic -> AVFilterLink.out_buf
  454. 2010-08-07 - r24731 - lavfi 1.30.0
  455. Rename functions and fields:
  456. avfilter_(un)ref_pic -> avfilter_(un)ref_buffer
  457. avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
  458. AVFilterBufferRef.pic -> AVFilterBufferRef.buffer
  459. 2010-08-07 - r24730 - lavfi 1.29.0 - AVFilterBufferRef
  460. Rename AVFilterPicRef to AVFilterBufferRef.
  461. 2010-08-07 - r24728 - lavfi 1.28.0 - AVFilterBuffer
  462. Move format field from AVFilterBuffer to AVFilterPicRef.
  463. 2010-08-06 - r24709 - lavcore 0.3.0 - av_check_image_size()
  464. Deprecate avcodec_check_dimensions() in favor of the function
  465. av_check_image_size() defined in libavcore/imgutils.h.
  466. 2010-07-30 - r24592 - lavfi 1.27.0 - AVFilterBuffer
  467. Increase size of the arrays AVFilterBuffer.data and
  468. AVFilterBuffer.linesize from 4 to 8.
  469. This change breaks libavfilter ABI.
  470. 2010-07-29 - r24583 - lavcore 0.2.0 - imgutils.h
  471. Add functions av_fill_image_linesizes() and
  472. av_fill_image_pointers(), declared in libavcore/imgutils.h.
  473. 2010-07-27 - r24518 - lavcore 0.1.0 - parseutils.h
  474. Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()
  475. defined in libavcodec in favor of the newly added functions
  476. av_parse_video_size() and av_parse_video_rate() declared in
  477. libavcore/parseutils.h.
  478. 2010-07-23 - r24439 - lavu 50.23.0 - mathematics.h
  479. Add the M_PHI constant definition.
  480. 2010-07-22 - r24424 - lavfi 1.26.0 - media format generalization
  481. Add a type field to AVFilterLink.
  482. Change the field types:
  483. enum PixelFormat format -> int format in AVFilterBuffer
  484. enum PixelFormat *formats -> int *formats in AVFilterFormats
  485. enum PixelFormat *format -> int format in AVFilterLink
  486. Change the function signatures:
  487. AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
  488. AVFilterFormats *avfilter_make_format_list(const int *fmts);
  489. int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
  490. int avfilter_add_format (AVFilterFormats **avff, int fmt);
  491. AVFilterFormats *avfilter_all_colorspaces(void); ->
  492. AVFilterFormats *avfilter_all_formats (enum AVMediaType type);
  493. This change breaks libavfilter API/ABI.
  494. 2010-07-21 - r24393 - lavcore 0.0.0
  495. Add libavcore.
  496. 2010-07-17 - r24291 - lavfi 1.25.0 - AVFilterBuffer
  497. Remove w and h fields from AVFilterBuffer.
  498. 2010-07-17 - r24284 - lavfi 1.24.0 - AVFilterBuffer
  499. Rename AVFilterPic to AVFilterBuffer.
  500. 2010-07-17 - r24278 - lavf 52.74.0 - url_fskip()
  501. Make url_fskip() return an int error code instead of void.
  502. 2010-07-11 - r24199 - lavc 52.83.0
  503. Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.
  504. Add AVLPCType enum.
  505. Deprecate AVCodecContext.use_lpc.
  506. 2010-07-11 - r24185 - lavc 52.82.0 - avsubtitle_free()
  507. Add a function for free the contents of a AVSubtitle generated by
  508. avcodec_decode_subtitle.
  509. 2010-07-11 - r24174 - lavu 50.22.0 - bswap.h and intreadwrite.h
  510. Make the bswap.h and intreadwrite.h API public.
  511. 2010-07-08 - r24101 - lavu 50.21.0 - pixdesc.h
  512. Rename read/write_line() to av_read/write_image_line().
  513. 2010-07-07 - r24091 - lavfi 1.21.0 - avfilter_copy_picref_props()
  514. Add avfilter_copy_picref_props().
  515. 2010-07-03 - r24021 - lavc 52.79.0
  516. Add FF_COMPLIANCE_UNOFFICIAL and change all instances of
  517. FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.
  518. 2010-07-02 - r23985 - lavu 50.20.0 - lfg.h
  519. Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through
  520. lfg.h.
  521. 2010-06-28 - r23835 - lavfi 1.20.1 - av_parse_color()
  522. Extend av_parse_color() syntax, make it accept an alpha value specifier and
  523. set the alpha value to 255 by default.
  524. 2010-06-22 - r23706 - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class
  525. Add priv_data_size and priv_data_class to URLProtocol.
  526. 2010-06-22 - r23704 - lavf 52.70.0 - url_alloc(), url_connect()
  527. Add url_alloc() and url_connect().
  528. 2010-06-22 - r23702 - lavf 52.69.0 - av_register_protocol2()
  529. Add av_register_protocol2(), deprecating av_register_protocol().
  530. 2010-06-09 - r23551 - lavu 50.19.0 - av_compare_mod()
  531. Add av_compare_mod() to libavutil/mathematics.h.
  532. 2010-06-05 - r23485 - lavu 50.18.0 - eval API
  533. Make the eval API public.
  534. 2010-06-04 - r23461 - lavu 50.17.0 - AV_BASE64_SIZE
  535. Add AV_BASE64_SIZE() macro.
  536. 2010-06-02 - r23421 - lavc 52.73.0 - av_get_codec_tag_string()
  537. Add av_get_codec_tag_string().
  538. 2010-06-01 - r31301 - lsws 0.11.0 - convertPalette API
  539. Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
  540. 2010-05-26 - r23334 - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
  541. Add CODEC_CAP_EXPERIMENTAL flag.
  542. NOTE: this was backported to 0.6
  543. 2010-05-23 - r23255 - lavu 50.16.0 - av_get_random_seed()
  544. Add av_get_random_seed().
  545. 2010-05-18 - r23161 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
  546. Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.
  547. NOTE: this was backported to 0.6
  548. 2010-05-09 - r23066 - lavfi 1.20.0 - AVFilterPicRef
  549. Add interlaced and top_field_first fields to AVFilterPicRef.
  550. ------------------------------8<-------------------------------------
  551. 0.6 branch was cut here
  552. ----------------------------->8--------------------------------------
  553. 2010-05-01 - r23002 - lavf 52.62.0 - probe function
  554. Add av_probe_input_format2 to API, it allows ignoring probe
  555. results below given score and returns the actual probe score.
  556. 2010-04-01 - r22806 - lavf 52.61.0 - metadata API
  557. Add a flag for av_metadata_set2() to disable overwriting of
  558. existing tags.
  559. 2010-04-01 - r22753 - lavc 52.66.0
  560. Add avcodec_get_edge_width().
  561. 2010-03-31 - r22750 - lavc 52.65.0
  562. Add avcodec_copy_context().
  563. 2010-03-31 - r22748 - lavf 52.60.0 - av_match_ext()
  564. Make av_match_ext() public.
  565. 2010-03-31 - r22736 - lavu 50.14.0 - AVMediaType
  566. Move AVMediaType enum from libavcodec to libavutil.
  567. 2010-03-31 - r22735 - lavc 52.64.0 - AVMediaType
  568. Define AVMediaType enum, and use it instead of enum CodecType, which
  569. is deprecated and will be dropped at the next major bump.
  570. 2010-03-25 - r22684 - lavu 50.13.0 - av_strerror()
  571. Implement av_strerror().
  572. 2010-03-23 - r22649 - lavc 52.60.0 - av_dct_init()
  573. Support DCT-I and DST-I.
  574. 2010-03-15 - r22540 - lavf 52.56.0 - AVFormatContext.start_time_realtime
  575. Add AVFormatContext.start_time_realtime field.
  576. 2010-03-13 - r22506 - lavfi 1.18.0 - AVFilterPicRef.pos
  577. Add AVFilterPicRef.pos field.
  578. 2010-03-13 - r22501 - lavu 50.12.0 - error.h
  579. Move error code definitions from libavcodec/avcodec.h to
  580. the new public header libavutil/error.h.
  581. 2010-03-07 - r22291 - lavc 52.56.0 - avfft.h
  582. Add public FFT interface.
  583. 2010-03-06 - r22251 - lavu 50.11.0 - av_stristr()
  584. Add av_stristr().
  585. 2010-03-03 - r22174 - lavu 50.10.0 - av_tree_enumerate()
  586. Add av_tree_enumerate().
  587. 2010-02-07 - r21673 - lavu 50.9.0 - av_compare_ts()
  588. Add av_compare_ts().
  589. 2010-02-05 - r30513 - lsws 0.10.0 - sws_getCoefficients()
  590. Add sws_getCoefficients().
  591. 2010-02-01 - r21587 - lavf 52.50.0 - metadata API
  592. Add a list of generic tag names, change 'author' -> 'artist',
  593. 'year' -> 'date'.
  594. 2010-01-30 - r21545 - lavu 50.8.0 - av_get_pix_fmt()
  595. Add av_get_pix_fmt().
  596. 2010-01-21 - r30381 - lsws 0.9.0 - sws_scale()
  597. Change constness attributes of sws_scale() parameters.
  598. 2010-01-10 - r21121 - lavfi 1.15.0 - avfilter_graph_config_links()
  599. Add a log_ctx parameter to avfilter_graph_config_links().
  600. 2010-01-07 - r30236 - lsws 0.8.0 - sws_isSupported{In,Out}put()
  601. Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
  602. 2010-01-06 - r21035 - lavfi 1.14.0 - avfilter_add_colorspace()
  603. Change the avfilter_add_colorspace() signature, make it accept an
  604. (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
  605. 2010-01-03 - r21007 - lavfi 1.13.0 - avfilter_add_colorspace()
  606. Add avfilter_add_colorspace().
  607. 2010-01-02 - r20998 - lavf 52.46.0 - av_match_ext()
  608. Add av_match_ext(), it should be used in place of match_ext().
  609. 2010-01-01 - r20991 - lavf 52.45.0 - av_guess_format()
  610. Add av_guess_format(), it should be used in place of guess_format().
  611. 2009-12-13 - r20834 - lavf 52.43.0 - metadata API
  612. Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and
  613. AV_METADATA_DONT_STRDUP_VAL.
  614. 2009-12-13 - r20829 - lavu 50.7.0 - avstring.h API
  615. Add av_d2str().
  616. 2009-12-13 - r20826 - lavc 52.42.0 - AVStream
  617. Add avg_frame_rate.
  618. 2009-12-12 - r20808 - lavu 50.6.0 - av_bmg_next()
  619. Introduce the av_bmg_next() function.
  620. 2009-12-05 - r20734 - lavfi 1.12.0 - avfilter_draw_slice()
  621. Add a slice_dir parameter to avfilter_draw_slice().
  622. 2009-11-26 - r20611 - lavfi 1.11.0 - AVFilter
  623. Remove the next field from AVFilter, this is not anymore required.
  624. 2009-11-25 - r20607 - lavfi 1.10.0 - avfilter_next()
  625. Introduce the avfilter_next() function.
  626. 2009-11-25 - r20605 - lavfi 1.9.0 - avfilter_register()
  627. Change the signature of avfilter_register() to make it return an
  628. int. This is required since now the registration operation may fail.
  629. 2009-11-25 - r20603 - lavu 50.5.0 - pixdesc.h API
  630. Make the pixdesc.h API public.
  631. 2009-10-27 - r20385 - lavfi 1.5.0 - AVFilter.next
  632. Add a next field to AVFilter, this is used for simplifying the
  633. registration and management of the registered filters.
  634. 2009-10-23 - r20356 - lavfi 1.4.1 - AVFilter.description
  635. Add a description field to AVFilter.
  636. 2009-10-19 - r20302 - lavfi 1.3.0 - avfilter_make_format_list()
  637. Change the interface of avfilter_make_format_list() from
  638. avfilter_make_format_list(int n, ...) to
  639. avfilter_make_format_list(enum PixelFormat *pix_fmts).
  640. 2009-10-18 - r20272 - lavfi 1.0.0 - avfilter_get_video_buffer()
  641. Make avfilter_get_video_buffer() recursive and add the w and h
  642. parameters to it.
  643. 2009-10-07 - r20189 - lavfi 0.5.1 - AVFilterPic
  644. Add w and h fields to AVFilterPic.
  645. 2009-06-22 - r19250 - lavf 52.34.1 - AVFormatContext.packet_size
  646. This is now an unsigned int instead of a signed int.
  647. 2009-06-19 - r19222 - lavc 52.32.0 - AVSubtitle.pts
  648. Add a pts field to AVSubtitle which gives the subtitle packet pts
  649. in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
  650. not work right without this.
  651. 2009-06-03 - r19078 - lavc 52.30.2 - AV_PKT_FLAG_KEY
  652. PKT_FLAG_KEY has been deprecated and will be dropped at the next
  653. major version. Use AV_PKT_FLAG_KEY instead.
  654. 2009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register()
  655. av_lockmgr_register() can be used to register a callback function
  656. that lavc (and in the future, libraries that depend on lavc) can use
  657. to implement mutexes. The application should provide a callback function
  658. that implements the AV_LOCK_* operations described in avcodec.h.
  659. When the lock manager is registered, FFmpeg is guaranteed to behave
  660. correctly in a multi-threaded application.
  661. 2009-04-30 - r18719 - lavc 52.28.0 - av_free_packet()
  662. av_free_packet() is no longer an inline function. It is now exported.
  663. 2009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree()
  664. Please use NULL instead. This has been supported since r16506
  665. (lavf > 52.23.1, lavc > 52.10.0).
  666. 2009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
  667. The old decoding functions are deprecated, all new code should use the
  668. new functions avcodec_decode_video2(), avcodec_decode_audio3() and
  669. avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
  670. argument instead of a const uint8_t *buf / int buf_size pair.
  671. 2009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space()
  672. Introduce the av_fifo_space() function.
  673. 2009-04-02 - r18317 - lavc 52.23.0 - AVPacket
  674. Move AVPacket declaration from libavformat/avformat.h to
  675. libavcodec/avcodec.h.
  676. 2009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats
  677. Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
  678. PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
  679. Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
  680. PIX_FMT_BGR32_1 are now macros.
  681. avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
  682. Re-sort the enum PixelFormat list accordingly.
  683. This change breaks API/ABI backward compatibility.
  684. 2009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
  685. Add the enum PixelFormat values:
  686. PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
  687. PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
  688. 2009-03-21 - r18116 - lavu 50.0.0 - av_random*
  689. The Mersenne Twister PRNG implemented through the av_random* functions
  690. was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
  691. instead.
  692. 2009-03-08 - r17869 - lavu 50.0.0 - AVFifoBuffer
  693. av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
  694. and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
  695. and av_fifo_realloc2.
  696. In addition, the order of the function arguments of av_fifo_generic_read
  697. was changed to match av_fifo_generic_write.
  698. The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
  699. applications, they may not use sizeof() or directly access members.
  700. 2009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API
  701. Introduce a new metadata API (see av_metadata_get() and friends).
  702. The old API is now deprecated and should not be used anymore. This especially
  703. includes the following structure fields:
  704. - AVFormatContext.title
  705. - AVFormatContext.author
  706. - AVFormatContext.copyright
  707. - AVFormatContext.comment
  708. - AVFormatContext.album
  709. - AVFormatContext.year
  710. - AVFormatContext.track
  711. - AVFormatContext.genre
  712. - AVStream.language
  713. - AVStream.filename
  714. - AVProgram.provider_name
  715. - AVProgram.name
  716. - AVChapter.title