doc/APIchanges

   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
   4 The last version increases were:
   5 libavcodec:    2012-01-27
   6 libavdevice:   2011-04-18
   7 libavfilter:   2012-06-22
   8 libavformat:   2012-01-27
   9 libavresample: 2012-10-05
  10 libswscale:    2011-06-20
  11 libavutil:     2012-10-22
  12
  13
  14 API changes, most recent first:
  15
  16 2012-xx-xx - xxxxxxx - lavu 52.2.0 - audioconvert.h
  17   Rename audioconvert.h to channel_layout.h. audioconvert.h is now deprecated.
  18
  19 2012-xx-xx - xxxxxxx - lavu 52.1.0 - intmath.h
  20   Add av_ctz() for trailing zero bit count
  21
  22 2012-10-18 - xxxxxxx - lavu 51.45.0 - error.h
  23   Add AVERROR_EXPERIMENTAL
  24
  25 2012-10-12 - xxxxxxx - lavu 51.44.0 - pixdesc.h
  26   Add functions for accessing pixel format descriptors.
  27   Accessing the av_pix_fmt_descriptors array directly is now
  28   deprecated.
  29
  30 2012-10-xx - xxxxxxx - lavu 51.43.0 - aes.h, md5.h, sha.h, tree.h
  31   Add functions for allocating the opaque contexts for the algorithms,
  32   deprecate the context size variables.
  33
  34 2012-10-xx - xxxxxxx - lavf 54.18.0 - avio.h
  35   Add avio_closep to complement avio_close.
  36
  37 2012-10-xx - xxxxxxx - lavu 51.42.0 - pixfmt.h
  38   Rename PixelFormat to AVPixelFormat and all PIX_FMT_* to AV_PIX_FMT_*.
  39   To provide backwards compatibility, PixelFormat is now #defined as
  40   AVPixelFormat.
  41   Note that this can break user code that includes pixfmt.h and uses the
  42   'PixelFormat' identifier. Such code should either #undef PixelFormat
  43   or stop using the PixelFormat name.
  44
  45 2012-10-05 - e7ba5b1 - lavr 1.0.0 - avresample.h
  46   Data planes parameters to avresample_convert() and
  47   avresample_read() are now uint8_t** instead of void**.
  48   Libavresample is now stable.
  49
  50 2012-09-24 - a42aada - lavc 54.28.0 - avcodec.h
  51   Add avcodec_free_frame(). This function must now
  52   be used for freeing an AVFrame.
  53
  54 2012-09-12 - 8919fee - lavu 51.41.0 - audioconvert.h
  55   Added AV_CH_LOW_FREQUENCY_2 channel mask value.
  56
  57 2012-09-04 - 686a329 - lavu 51.40.0 - opt.h
  58   Reordered the fields in default_val in AVOption, changed which
  59   default_val field is used for which AVOptionType.
  60
  61 2012-08-30 - a231832 - lavc 54.26.1 - avcodec.h
  62   Add codec descriptor properties AV_CODEC_PROP_LOSSY and
  63   AV_CODEC_PROP_LOSSLESS.
  64
  65 2012-08-18 - lavc 54.26 - avcodec.h
  66   Add codec descriptors for accessing codec properties without having
  67   to refer to a specific decoder or encoder.
  68
  69   c223d79 - Add an AVCodecDescriptor struct and functions
  70             avcodec_descriptor_get() and avcodec_descriptor_next().
  71   51efed1 - Add AVCodecDescriptor.props and AV_CODEC_PROP_INTRA_ONLY.
  72   91e59fe - Add avcodec_descriptor_get_by_name().
  73
  74
  75 2012-08-08 - 1d9c2dc - lavu 51.39 - avutil.h
  76   Don't implicitly include libavutil/common.h in avutil.h
  77
  78 2012-08-08 - 987170c - lavu 51.38 - dict.h
  79   Add av_dict_count().
  80
  81 2012-08-07 - 104e10f - lavc 54.25 - avcodec.h
  82   Rename CodecID to AVCodecID and all CODEC_ID_* to AV_CODEC_ID_*.
  83   To provide backwards compatibility, CodecID is now #defined as AVCodecID.
  84   Note that this can break user code that includes avcodec.h and uses the
  85   'CodecID' identifier. Such code should either #undef CodecID or stop using the
  86   CodecID name.
  87
  88 2012-08-03 - 239fdf1 - lavu 51.37.1 - cpu.h
  89                        lsws 2.1.1   - swscale.h
  90   Rename AV_CPU_FLAG_MMX2  ---> AV_CPU_FLAG_MMXEXT.
  91   Rename SWS_CPU_CAPS_MMX2 ---> SWS_CPU_CAPS_MMXEXT.
  92
  93 2012-07-29 - 681ed00 - lavf 54.13.0 - avformat.h
  94   Add AVFMT_FLAG_NOBUFFER for low latency use cases.
  95
  96 2012-07-20 - b70d89a - lavfi 3.0.0 - avfilter.h
  97   Add avfilter_unref_bufferp().
  98
  99 2012-07-10 - 5fade8a - lavu 51.37.0
 100   Add av_malloc_array() and av_mallocz_array()
 101
 102 2012-06-22 - d3d3a32 - lavu 51.34.0
 103   Add av_usleep()
 104
 105 2012-06-20 - ae0a301 - lavu 51.33.0
 106   Move av_gettime() to libavutil, add libavutil/time.h
 107
 108 2012-06-09 - 3971be0 - lavr 0.0.3
 109   Add a parameter to avresample_build_matrix() for Dolby/DPLII downmixing.
 110
 111 2012-06-12 - 9baeff9 - lavfi 2.23.0 - avfilter.h
 112   Add AVFilterContext.nb_inputs/outputs. Deprecate
 113   AVFilterContext.input/output_count.
 114
 115 2012-06-12 - 84b9fbe - lavfi 2.22.0 - avfilter.h
 116   Add avfilter_pad_get_type() and avfilter_pad_get_name(). Those
 117   should now be used instead of accessing AVFilterPad members
 118   directly.
 119
 120 2012-06-12 - b0f0dfc - lavu 51.32.0 - audioconvert.h
 121   Add av_get_channel_layout_channel_index(), av_get_channel_name()
 122   and av_channel_layout_extract_channel().
 123
 124 2012-05-25 - 154486f - lavu 51.31.0 - opt.h
 125   Add av_opt_set_bin()
 126
 127 2012-05-26 - e9cef89 - lavf 54.3.0
 128   Add AVFMT_TS_NONSTRICT format flag to indicate that a muxer supports
 129   non-increasing monotone timestamps.
 130
 131 2012-05-15 - lavfi 2.17.0
 132   Add support for audio filters
 133   ac71230/a2cd9be - add video/audio buffer sink in a new installed
 134                     header buffersink.h
 135   720c6b7 - add av_buffersrc_write_frame(), deprecate
 136             av_vsrc_buffer_add_frame()
 137   ab16504 - add avfilter_copy_buf_props()
 138   9453c9e - add extended_data to AVFilterBuffer
 139   1b8c927 - add avfilter_get_audio_buffer_ref_from_arrays()
 140
 141 2012-05-09 - lavu 51.30.0 - samplefmt.h
 142   142e740 - add av_samples_copy()
 143   6d7f617 - add av_samples_set_silence()
 144
 145 2012-05-09 - a5117a2 - lavc 54.13.1
 146   For audio formats with fixed frame size, the last frame
 147   no longer needs to be padded with silence, libavcodec
 148   will handle this internally (effectively all encoders
 149   behave as if they had CODEC_CAP_SMALL_LAST_FRAME set).
 150
 151 2012-05-07 - 828bd08 - lavc 54.13.0 - avcodec.h
 152   Add sample_rate and channel_layout fields to AVFrame.
 153
 154 2012-05-01 - 4010d72 - lavr 0.0.1
 155   Change AV_MIX_COEFF_TYPE_Q6 to AV_MIX_COEFF_TYPE_Q8.
 156
 157 2012-04-25 - 3527a73 - lavu 51.29.0 - cpu.h
 158   Add av_parse_cpu_flags()
 159
 160 2012-04-24 - c8af852 - lavr 0.0.0
 161   Add libavresample audio conversion library
 162
 163 2012-04-20 - 0c0d1bc - lavu 51.28.0 - audio_fifo.h
 164   Add audio FIFO functions:
 165     av_audio_fifo_free()
 166     av_audio_fifo_alloc()
 167     av_audio_fifo_realloc()
 168     av_audio_fifo_write()
 169     av_audio_fifo_read()
 170     av_audio_fifo_drain()
 171     av_audio_fifo_reset()
 172     av_audio_fifo_size()
 173     av_audio_fifo_space()
 174
 175 2012-04-14 - lavfi 2.16.0 - avfiltergraph.h
 176   d7bcc71 Add avfilter_graph_parse2().
 177   91d3cbe Add avfilter_inout_alloc() and avfilter_inout_free().
 178
 179 2012-04-08 - 4d693b0 - lavu 51.27.0 - samplefmt.h
 180   Add av_get_packed_sample_fmt() and av_get_planar_sample_fmt()
 181
 182 2012-04-05 - 5cc51a5 - lavu 51.26.0 - audioconvert.h
 183   Add av_get_default_channel_layout()
 184
 185 2012-03-06 - 4d851f8 - lavu 51.25.0 - cpu.h
 186   Add av_set_cpu_flags_mask().
 187
 188 2012-03-05 - lavc 54.8.0
 189   6699d07 Add av_get_exact_bits_per_sample()
 190   9524cf7 Add av_get_audio_frame_duration()
 191
 192 2012-03-04 - 44fe77b - lavc 54.7.0 - avcodec.h
 193   Add av_codec_is_encoder/decoder().
 194
 195 2012-03-01 - 442c132 - lavc 54.3.0 - avcodec.h
 196   Add av_packet_shrink_side_data.
 197
 198 2012-02-29 - dd2a4bc - lavf 54.2.0 - avformat.h
 199   Add AVStream.attached_pic and AV_DISPOSITION_ATTACHED_PIC,
 200   used for dealing with attached pictures/cover art.
 201
 202 2012-02-25 - c9bca80 - lavu 51.24.0 - error.h
 203   Add AVERROR_UNKNOWN
 204   NOTE: this was backported to 0.8
 205
 206 2012-02-20 - e9cda85 - lavc 54.2.0
 207   Add duration field to AVCodecParserContext
 208
 209 2012-02-20 - 0b42a93 - lavu 51.23.1 - mathematics.h
 210   Add av_rescale_q_rnd()
 211
 212 2012-02-08 - 38d5533 - lavu 51.22.1 - pixdesc.h
 213   Add PIX_FMT_PSEUDOPAL flag.
 214
 215 2012-02-08 - 52f82a1 - lavc 54.01.0
 216   Add avcodec_encode_video2() and deprecate avcodec_encode_video().
 217
 218 2012-02-01 - 316fc74 - lavc 54.01.0
 219   Add av_fast_padded_malloc() as alternative for av_realloc() when aligned
 220   memory is required. The buffer will always have FF_INPUT_BUFFER_PADDING_SIZE
 221   zero-padded bytes at the end.
 222
 223 2012-01-31 - dd6d3b0 - lavf 54.01.0
 224   Add avformat_get_riff_video_tags() and avformat_get_riff_audio_tags().
 225   NOTE: this was backported to 0.8
 226
 227 2012-01-31 - af08d9a - lavc 54.01.0
 228   Add avcodec_is_open() function.
 229   NOTE: this was backported to 0.8
 230
 231 2012-01-30 - 8b93312 - lavu 51.22.0 - intfloat.h
 232   Add a new installed header libavutil/intfloat.h with int/float punning
 233   functions.
 234   NOTE: this was backported to 0.8
 235
 236 2012-01-25 - lavf 53.22.0
 237   f1caf01 Allow doing av_write_frame(ctx, NULL) for flushing possible
 238           buffered data within a muxer. Added AVFMT_ALLOW_FLUSH for
 239           muxers supporting it (av_write_frame makes sure it is called
 240           only for muxers with this flag).
 241
 242 ------------------------------8<-------------------------------------
 243                    0.8 branch was cut here
 244 ----------------------------->8--------------------------------------
 245
 246 2012-01-15 - lavc 53.34.0
 247   New audio encoding API:
 248   b2c75b6 Add CODEC_CAP_VARIABLE_FRAME_SIZE capability for use by audio
 249           encoders.
 250   5ee5fa0 Add avcodec_fill_audio_frame() as a convenience function.
 251   b2c75b6 Add avcodec_encode_audio2() and deprecate avcodec_encode_audio().
 252           Add AVCodec.encode2().
 253
 254 2012-01-12 - 3167dc9 - lavfi 2.15.0
 255   Add a new installed header -- libavfilter/version.h -- with version macros.
 256
 257 2011-01-03 - b73ec05 - lavu 51.21.0
 258   Add av_popcount64
 259
 260 2011-12-25 - lavfi 2.14.0
 261   e1d9dbf Add a new installed header - buffersrc.h
 262   It contains a new function av_buffersrc_buffer() that allows passing
 263   frames to the 'buffer' filter, but unlike av_vsrc_buffer_add_frame()
 264   it allows for direct rendering.
 265   1c9e340 Add avfilter_copy_frame_props() for copying properties from
 266   AVFrame to AVFilterBufferRef.
 267
 268 2011-12-25 - lavc 53.31.0
 269   Add the following new fields to AVFrame:
 270     b58dbb5 sample_aspect_ratio
 271     3a2ddf7 width, height
 272     8a4a5f6 format
 273
 274 2011-12-18 - 8400b12 - lavc 53.28.1
 275   Deprecate AVFrame.age. The field is unused.
 276
 277 2011-12-12 - 5266045 - lavf 53.17.0
 278   Add avformat_close_input().
 279   Deprecate av_close_input_file() and av_close_input_stream().
 280
 281 2011-12-02 - 0eea212 - lavc 53.25.0
 282   Add nb_samples and extended_data fields to AVFrame.
 283   Deprecate AVCODEC_MAX_AUDIO_FRAME_SIZE.
 284   Deprecate avcodec_decode_audio3() in favor of avcodec_decode_audio4().
 285   avcodec_decode_audio4() writes output samples to an AVFrame, which allows
 286   audio decoders to use get_buffer().
 287
 288 2011-12-04 - 560f773 - lavc 53.24.0
 289   Change AVFrame.data[4]/base[4]/linesize[4]/error[4] to [8] at next major bump.
 290   Change AVPicture.data[4]/linesize[4] to [8] at next major bump.
 291   Change AVCodecContext.error[4] to [8] at next major bump.
 292   Add AV_NUM_DATA_POINTERS to simplify the bump transition.
 293
 294 2011-11-23 - bbb46f3 - lavu 51.18.0
 295   Add av_samples_get_buffer_size(), av_samples_fill_arrays(), and
 296   av_samples_alloc(), to samplefmt.h.
 297
 298 2011-11-23 - 8889cc4 - lavu 51.17.0
 299   Add planar sample formats and av_sample_fmt_is_planar() to samplefmt.h.
 300
 301 2011-11-19 - f3a29b7 - lavc 53.21.0
 302   Move some AVCodecContext fields to a new private struct, AVCodecInternal,
 303   which is accessed from a new field, AVCodecContext.internal.
 304   - fields moved:
 305       AVCodecContext.internal_buffer       --> AVCodecInternal.buffer
 306       AVCodecContext.internal_buffer_count --> AVCodecInternal.buffer_count
 307       AVCodecContext.is_copy               --> AVCodecInternal.is_copy
 308
 309 2011-11-16 - 6270671 - lavu 51.16.0
 310   Add av_timegm()
 311
 312 2011-11-13 - lavf 53.15.0
 313   New interrupt callback API, allowing per-AVFormatContext/AVIOContext
 314   interrupt callbacks.
 315   6aa0b98 Add AVIOInterruptCB struct and the interrupt_callback field to
 316           AVFormatContext.
 317   1dee0ac Add avio_open2() with additional parameters. Those are
 318           an interrupt callback and an options AVDictionary.
 319           This will allow passing AVOptions to protocols after lavf
 320           54.0.
 321
 322 2011-11-06 - ba04ecf - lavu 51.14.0
 323   Add av_strcasecmp() and av_strncasecmp() to avstring.h.
 324
 325 2011-11-06 - 07b172f - lavu 51.13.0
 326   Add av_toupper()/av_tolower()
 327
 328 2011-11-05 - b6d08f4 - lavf 53.13.0
 329   Add avformat_network_init()/avformat_network_deinit()
 330
 331 2011-10-27 - 512557b - lavc 53.15.0
 332   Remove avcodec_parse_frame.
 333   Deprecate AVCodecContext.parse_only and CODEC_CAP_PARSE_ONLY.
 334
 335 2011-10-19 - 569129a - lavf 53.10.0
 336   Add avformat_new_stream(). Deprecate av_new_stream().
 337
 338 2011-10-13 - b631fba - lavf 53.9.0
 339   Add AVFMT_NO_BYTE_SEEK AVInputFormat flag.
 340
 341 2011-10-12 - lavu 51.12.0
 342   AVOptions API rewrite.
 343
 344   - 145f741 FF_OPT_TYPE* renamed to AV_OPT_TYPE_*
 345   - new setting/getting functions with slightly different semantics:
 346         dac66da av_set_string3 -> av_opt_set
 347                 av_set_double  -> av_opt_set_double
 348                 av_set_q       -> av_opt_set_q
 349                 av_set_int     -> av_opt_set_int
 350
 351         41d9d51 av_get_string  -> av_opt_get
 352                 av_get_double  -> av_opt_get_double
 353                 av_get_q       -> av_opt_get_q
 354                 av_get_int     -> av_opt_get_int
 355
 356   - 8c5dcaa trivial rename av_next_option -> av_opt_next
 357   - 641c7af new functions - av_opt_child_next, av_opt_child_class_next
 358     and av_opt_find2()
 359
 360 2011-09-03 - fb4ca26 - lavc 53.10.0
 361                        lavf 53.6.0
 362                        lsws  2.1.0
 363   Add {avcodec,avformat,sws}_get_class().
 364
 365 2011-09-03 - c11fb82 - lavu 51.10.0
 366   Add AV_OPT_SEARCH_FAKE_OBJ flag for av_opt_find() function.
 367
 368 2011-08-26 - lavu 51.9.0
 369   - f2011ed Add av_fifo_peek2(), deprecate av_fifo_peek().
 370   - add41de..abc78a5 Do not include intfloat_readwrite.h,
 371     mathematics.h, rational.h, pixfmt.h, or log.h from avutil.h.
 372
 373 2011-08-16 - 48f9e45 - lavf 53.4.0
 374   Add avformat_query_codec().
 375
 376 2011-08-16 - bca06e7 - lavc 53.8.0
 377   Add avcodec_get_type().
 378
 379 2011-08-06 - 2f63440 - lavf 53.4.0
 380   Add error_recognition to AVFormatContext.
 381
 382 2011-08-02 - 9d39cbf - lavc 53.7.1
 383   Add AV_PKT_FLAG_CORRUPT AVPacket flag.
 384
 385 2011-07-10 - a67c061 - lavf 53.3.0
 386   Add avformat_find_stream_info(), deprecate av_find_stream_info().
 387   NOTE: this was backported to 0.7
 388
 389 2011-07-10 - 0b950fe - lavc 53.6.0
 390   Add avcodec_open2(), deprecate avcodec_open().
 391   NOTE: this was backported to 0.7
 392
 393   Add avcodec_alloc_context3. Deprecate avcodec_alloc_context() and
 394   avcodec_alloc_context2().
 395
 396 2011-06-23 - 67e9ae1 - lavu 51.8.0 - attributes.h
 397   Add av_printf_format().
 398
 399 ------------------------------8<-------------------------------------
 400                    0.7 branch was cut here
 401 ----------------------------->8--------------------------------------
 402
 403 2011-06-16 - 05e84c9, 25de595 - lavf 53.2.0 - avformat.h
 404   Add avformat_open_input and avformat_write_header().
 405   Deprecate av_open_input_stream, av_open_input_file,
 406   AVFormatParameters and av_write_header.
 407
 408 2011-06-16 - 7e83e1c, dc59ec5 - lavu 51.7.0 - opt.h
 409   Add av_opt_set_dict() and av_opt_find().
 410   Deprecate av_find_opt().
 411   Add AV_DICT_APPEND flag.
 412
 413 2011-06-10 - cb7c11c - lavu 51.6.0 - opt.h
 414   Add av_opt_flag_is_set().
 415
 416 2011-06-08 - d9f80ea - lavu 51.5.0 - AVMetadata
 417   Move AVMetadata from lavf to lavu and rename it to
 418   AVDictionary -- new installed header dict.h.
 419   All av_metadata_* functions renamed to av_dict_*.
 420
 421 2011-06-07 - a6703fa - lavu 51.4.0 - av_get_bytes_per_sample()
 422   Add av_get_bytes_per_sample() in libavutil/samplefmt.h.
 423   Deprecate av_get_bits_per_sample_fmt().
 424
 425 2011-06-05 - b39b062 - lavu 51.3.0 - opt.h
 426   Add av_opt_free convenience function.
 427
 428 2011-05-28 - 0420bd7 - lavu 51.2.0 - pixdesc.h
 429   Add av_get_pix_fmt_name() in libavutil/pixdesc.h, and deprecate
 430   avcodec_get_pix_fmt_name() in libavcodec/avcodec.h in its favor.
 431
 432 2011-05-25 - 30315a8 - lavf 53.1.0 - avformat.h
 433   Add fps_probe_size to AVFormatContext.
 434
 435 2011-05-18 - 64150ff - lavc 53.4.0 - AVCodecContext.request_sample_fmt
 436   Add request_sample_fmt field to AVCodecContext.
 437
 438 2011-05-10 - 188dea1 - lavc 53.3.0 - avcodec.h
 439   Deprecate AVLPCType and the following fields in
 440   AVCodecContext: lpc_coeff_precision, prediction_order_method,
 441   min_partition_order, max_partition_order, lpc_type, lpc_passes.
 442   Corresponding FLAC encoder options should be used instead.
 443
 444 2011-04-26 - bebe72f - lavu 51.1.0 - avutil.h
 445   Add AVPictureType enum and av_get_picture_type_char(), deprecate
 446   FF_*_TYPE defines and av_get_pict_type_char() defined in
 447   libavcodec/avcodec.h.
 448
 449 2011-04-26 - 10d3940 - lavfi 2.3.0 - avfilter.h
 450   Add pict_type and key_frame fields to AVFilterBufferRefVideo.
 451
 452 2011-04-26 - 7a11c82 - lavfi 2.2.0 - vsrc_buffer
 453   Add sample_aspect_ratio fields to vsrc_buffer arguments
 454
 455 2011-04-21 - 94f7451 - lavc 53.1.0 - avcodec.h
 456   Add CODEC_CAP_SLICE_THREADS for codecs supporting sliced threading.
 457
 458 2011-04-15 - lavc 52.120.0 - avcodec.h
 459   AVPacket structure got additional members for passing side information:
 460     4de339e introduce side information for AVPacket
 461     2d8591c make containers pass palette change in AVPacket
 462
 463 2011-04-12 - lavf 52.107.0 - avio.h
 464   Avio cleanup, part II - deprecate the entire URLContext API:
 465     175389c add avio_check as a replacement for url_exist
 466     ff1ec0c add avio_pause and avio_seek_time as replacements
 467             for _av_url_read_fseek/fpause
 468     cdc6a87 deprecate av_protocol_next(), avio_enum_protocols
 469             should be used instead.
 470     80c6e23 rename url_set_interrupt_cb->avio_set_interrupt_cb.
 471     f87b1b3 rename open flags: URL_* -> AVIO_*
 472     f8270bb add avio_enum_protocols.
 473     5593f03 deprecate URLProtocol.
 474     c486dad deprecate URLContext.
 475     026e175 deprecate the typedef for URLInterruptCB
 476     8e76a19 deprecate av_register_protocol2.
 477     b840484 deprecate URL_PROTOCOL_FLAG_NESTED_SCHEME
 478     1305d93 deprecate av_url_read_seek
 479     fa104e1 deprecate av_url_read_pause
 480     727c7aa deprecate url_get_filename().
 481     5958df3 deprecate url_max_packet_size().
 482     1869ea0 deprecate url_get_file_handle().
 483     32a97d4 deprecate url_filesize().
 484     e52a914 deprecate url_close().
 485     58a48c6 deprecate url_seek().
 486     925e908 deprecate url_write().
 487     dce3756 deprecate url_read_complete().
 488     bc371ac deprecate url_read().
 489     0589da0 deprecate url_open().
 490     62eaaea deprecate url_connect.
 491     5652bb9 deprecate url_alloc.
 492     333e894 deprecate url_open_protocol
 493     e230705 deprecate url_poll and URLPollEntry
 494
 495 2011-04-10 - lavu  50.40.0 - pixfmt.h
 496   Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
 497
 498 2011-04-08 - lavf 52.106.0 - avformat.h
 499   Minor avformat.h cleanup:
 500     a9bf9d8 deprecate av_guess_image2_codec
 501     c3675df rename avf_sdp_create->av_sdp_create
 502
 503 2011-04-03 - lavf 52.105.0 - avio.h
 504   Large-scale renaming/deprecating of AVIOContext-related functions:
 505     724f6a0 deprecate url_fdopen
 506     403ee83 deprecate url_open_dyn_packet_buf
 507     6dc7d80 rename url_close_dyn_buf       -> avio_close_dyn_buf
 508     b92c545 rename url_open_dyn_buf        -> avio_open_dyn_buf
 509     8978fed introduce an AVIOContext.seekable field as a replacement for
 510             AVIOContext.is_streamed and url_is_streamed()
 511     b64030f deprecate get_checksum()
 512     4c4427a deprecate init_checksum()
 513     4ec153b deprecate udp_set_remote_url/get_local_port
 514     933e90a deprecate av_url_read_fseek/fpause
 515     8d9769a deprecate url_fileno
 516     b7f2fdd rename put_flush_packet -> avio_flush
 517     35f1023 deprecate url_close_buf
 518     83fddae deprecate url_open_buf
 519     d9d86e0 rename url_fprintf -> avio_printf
 520     59f65d9 deprecate url_setbufsize
 521     3e68b3b deprecate url_ferror
 522     66e5b1d deprecate url_feof
 523     e8bb2e2 deprecate url_fget_max_packet_size
 524     76aa876 rename url_fsize -> avio_size
 525     e519753 deprecate url_fgetc
 526     655e45e deprecate url_fgets
 527     a2704c9 rename url_ftell -> avio_tell
 528     e16ead0 deprecate get_strz() in favor of avio_get_str
 529     0300db8,2af07d3 rename url_fskip -> avio_skip
 530     6b4aa5d rename url_fseek -> avio_seek
 531     61840b4 deprecate put_tag
 532     22a3212 rename url_fopen/fclose -> avio_open/close.
 533     0ac8e2b deprecate put_nbyte
 534     77eb550 rename put_byte          -> avio_w8
 535                    put_[b/l]e<type>  -> avio_w[b/l]<type>
 536                    put_buffer        -> avio_write
 537     b7effd4 rename get_byte          -> avio_r8,
 538                    get_[b/l]e<type>  -> avio_r[b/l]<type>
 539                    get_buffer        -> avio_read
 540     b3db9ce deprecate get_partial_buffer
 541     8d9ac96 rename av_alloc_put_byte -> avio_alloc_context
 542
 543 2011-03-25 - 34b47d7 - lavc 52.115.0 - AVCodecContext.audio_service_type
 544   Add audio_service_type field to AVCodecContext.
 545
 546 2011-03-02 - 863c471 - lavf  52.103.0 - av_pkt_dump2, av_pkt_dump_log2
 547   Add new functions av_pkt_dump2, av_pkt_dump_log2 that uses the
 548   source stream timebase for outputting timestamps. Deprecate
 549   av_pkt_dump and av_pkt_dump_log.
 550
 551 2011-02-20 - e731b8d - lavf  52.102.0 - avio.h
 552   * e731b8d - rename init_put_byte() to ffio_init_context(), deprecating the
 553               original, and move it to a private header so it is no longer
 554               part of our public API. Instead, use av_alloc_put_byte().
 555   * ae628ec - rename ByteIOContext to AVIOContext.
 556
 557 2011-02-16 - 09d171b - lavf  52.101.0 - avformat.h
 558                        lavu  52.39.0  - parseutils.h
 559   * 610219a - Add av_ prefix to dump_format().
 560   * f6c7375 - Replace parse_date() in lavf with av_parse_time() in lavu.
 561   * ab0287f - Move find_info_tag from lavf to lavu and add av_prefix to it.
 562
 563 2011-02-15 - lavu 52.38.0 - merge libavcore
 564   libavcore is merged back completely into libavutil
 565
 566 2011-02-10 - 55bad0c - lavc 52.113.0 - vbv_delay
 567   Add vbv_delay field to AVCodecContext
 568
 569 2011-02-14 - 24a83bd - lavf 52.100.0 - AV_DISPOSITION_CLEAN_EFFECTS
 570   Add AV_DISPOSITION_CLEAN_EFFECTS disposition flag.
 571
 572 2011-02-14 - 910b5b8 - lavfi 1.76.0 - AVFilterLink sample_aspect_ratio
 573   Add sample_aspect_ratio field to AVFilterLink.
 574
 575 2011-02-10 - 12c14cd - lavf 52.99.0 - AVStream.disposition
 576   Add AV_DISPOSITION_HEARING_IMPAIRED and AV_DISPOSITION_VISUAL_IMPAIRED.
 577
 578 2011-02-09 - 5592734 - lavc 52.112.0 - avcodec_thread_init()
 579   Deprecate avcodec_thread_init()/avcodec_thread_free() use; instead
 580   set thread_count before calling avcodec_open.
 581
 582 2011-02-09 - 778b08a - lavc 52.111.0 - threading API
 583   Add CODEC_CAP_FRAME_THREADS with new restrictions on get_buffer()/
 584   release_buffer()/draw_horiz_band() callbacks for appropriate codecs.
 585   Add thread_type and active_thread_type fields to AVCodecContext.
 586
 587 2011-02-08 - 3940caa - lavf 52.98.0 - av_probe_input_buffer
 588   Add av_probe_input_buffer() to avformat.h for probing format from a
 589   ByteIOContext.
 590
 591 2011-02-06 - fe174fc - lavf 52.97.0 - avio.h
 592   Add flag for non-blocking protocols: URL_FLAG_NONBLOCK
 593
 594 2011-02-04 - f124b08 - lavf 52.96.0 - avformat_free_context()
 595   Add avformat_free_context() in avformat.h.
 596
 597 2011-02-03 - f5b82f4 - lavc 52.109.0 - add CODEC_ID_PRORES
 598   Add CODEC_ID_PRORES to avcodec.h.
 599
 600 2011-02-03 - fe9a3fb - lavc 52.109.0 - H.264 profile defines
 601   Add defines for H.264 * Constrained Baseline and Intra profiles
 602
 603 2011-02-02 - lavf 52.95.0
 604   * 50196a9 - add a new installed header version.h.
 605   * 4efd5cf, dccbd97, 93b78d1 - add several variants of public
 606     avio_{put,get}_str* functions.  Deprecate corresponding semi-public
 607     {put,get}_str*.
 608
 609 2011-02-02 - dfd2a00 - lavu 50.37.0 - log.h
 610   Make av_dlog public.
 611
 612 2011-01-15 - a242ac3 - lavfi 1.74.0 - AVFilterBufferRefAudioProps
 613   Rename AVFilterBufferRefAudioProps.samples_nb to nb_samples.
 614
 615 2011-01-14 - 7f88a5b - lavf 52.93.0 - av_metadata_copy()
 616   Add av_metadata_copy() in avformat.h.
 617
 618 2011-01-07 - 81c623f - lavc 52.107.0 - deprecate reordered_opaque
 619   Deprecate reordered_opaque in favor of pkt_pts/dts.
 620
 621 2011-01-07 - 1919fea - lavc 52.106.0 - pkt_dts
 622   Add pkt_dts to AVFrame, this will in the future allow multithreading decoders
 623   to not mess up dts.
 624
 625 2011-01-07 - 393cbb9 - lavc 52.105.0 - pkt_pts
 626   Add pkt_pts to AVFrame.
 627
 628 2011-01-07 - 060ec0a - lavc 52.104.0 - av_get_profile_name()
 629   Add av_get_profile_name to libavcodec/avcodec.h.
 630
 631 2010-12-27 - 0ccabee - lavfi 1.71.0 - AV_PERM_NEG_LINESIZES
 632   Add AV_PERM_NEG_LINESIZES in avfilter.h.
 633
 634 2010-12-27 - 9128ae0 - lavf 52.91.0 - av_find_best_stream()
 635   Add av_find_best_stream to libavformat/avformat.h.
 636
 637 2010-12-27 - 107a7e3 - lavf 52.90.0
 638   Add AVFMT_NOSTREAMS flag for formats with no streams,
 639   like e.g. text metadata.
 640
 641 2010-12-22 - 0328b9e - lavu 50.36.0 - file.h
 642   Add functions av_file_map() and av_file_unmap() in file.h.
 643
 644 2010-12-19 - 0bc55f5 - lavu 50.35.0 - error.h
 645   Add "not found" error codes:
 646   AVERROR_DEMUXER_NOT_FOUND
 647   AVERROR_MUXER_NOT_FOUND
 648   AVERROR_DECODER_NOT_FOUND
 649   AVERROR_ENCODER_NOT_FOUND
 650   AVERROR_PROTOCOL_NOT_FOUND
 651   AVERROR_FILTER_NOT_FOUND
 652   AVERROR_BSF_NOT_FOUND
 653   AVERROR_STREAM_NOT_FOUND
 654
 655 2010-12-09 - c61cdd0 - lavcore 0.16.0 - avcore.h
 656   Move AV_NOPTS_VALUE, AV_TIME_BASE, AV_TIME_BASE_Q symbols from
 657   avcodec.h to avcore.h.
 658
 659 2010-12-04 - 16cfc96 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES
 660   Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h.
 661
 662 2010-12-04 - bb4afa1 - lavu 50.34.0 - av_get_pix_fmt_string()
 663   Deprecate avcodec_pix_fmt_string() in favor of
 664   pixdesc.h/av_get_pix_fmt_string().
 665
 666 2010-12-04 - 4da12e3 - lavcore 0.15.0 - av_image_alloc()
 667   Add av_image_alloc() to libavcore/imgutils.h.
 668
 669 2010-12-02 - 037be76 - lavfi 1.67.0 - avfilter_graph_create_filter()
 670   Add function avfilter_graph_create_filter() in avfiltergraph.h.
 671
 672 2010-11-25 - 4723bc2 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays()
 673   Add function avfilter_get_video_buffer_ref_from_arrays() in
 674   avfilter.h.
 675
 676 2010-11-21 - 176a615 - lavcore 0.14.0 - audioconvert.h
 677   Add a public audio channel API in audioconvert.h, and deprecate the
 678   corresponding functions in libavcodec:
 679   avcodec_get_channel_name()
 680   avcodec_get_channel_layout()
 681   avcodec_get_channel_layout_string()
 682   avcodec_channel_layout_num_channels()
 683   and the CH_* macros defined in libavcodec/avcodec.h.
 684
 685 2010-11-21 - 6bfc268 - lavf 52.85.0 - avformat.h
 686   Add av_append_packet().
 687
 688 2010-11-21 - a08d918 - lavc 52.97.0 - avcodec.h
 689   Add av_grow_packet().
 690
 691 2010-11-17 - 0985e1a - lavcore 0.13.0 - parseutils.h
 692   Add av_parse_color() declared in libavcore/parseutils.h.
 693
 694 2010-11-13 - cb2c971 - lavc 52.95.0 - AVCodecContext
 695   Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size
 696   fields.
 697
 698 2010-11-13 - 5aaea02 - lavfi 1.62.0 - avfiltergraph.h
 699   Make avfiltergraph.h public.
 700
 701 2010-11-13 - 4fcbb2a - lavfi 1.61.0 - avfiltergraph.h
 702   Remove declarations from avfiltergraph.h for the functions:
 703   avfilter_graph_check_validity()
 704   avfilter_graph_config_links()
 705   avfilter_graph_config_formats()
 706   which are now internal.
 707   Use avfilter_graph_config() instead.
 708
 709 2010-11-08 - d2af720 - lavu 50.33.0 - eval.h
 710   Deprecate functions:
 711   av_parse_and_eval_expr(),
 712   av_parse_expr(),
 713   av_eval_expr(),
 714   av_free_expr(),
 715   in favor of the functions:
 716   av_expr_parse_and_eval(),
 717   av_expr_parse(),
 718   av_expr_eval(),
 719   av_expr_free().
 720
 721 2010-11-08 - 24de0ed - lavfi 1.59.0 - avfilter_free()
 722   Rename avfilter_destroy() to avfilter_free().
 723   This change breaks libavfilter API/ABI.
 724
 725 2010-11-07 - 1e80a0e - lavfi 1.58.0 - avfiltergraph.h
 726   Remove graphparser.h header, move AVFilterInOut and
 727   avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h.
 728
 729 2010-11-07 - 7313132 - lavfi 1.57.0 - AVFilterInOut
 730   Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx.
 731   This change breaks libavfilter API.
 732
 733 2010-11-04 - 97dd1e4 - lavfi 1.56.0 - avfilter_graph_free()
 734   Rename avfilter_graph_destroy() to avfilter_graph_free().
 735   This change breaks libavfilter API/ABI.
 736
 737 2010-11-04 - e15aeea - lavfi 1.55.0 - avfilter_graph_alloc()
 738   Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h.
 739
 740 2010-11-02 - 6f84cd1 - lavcore 0.12.0 - av_get_bits_per_sample_fmt()
 741   Add av_get_bits_per_sample_fmt() to libavcore/samplefmt.h and
 742   deprecate av_get_bits_per_sample_format().
 743
 744 2010-11-02 - d63e456 - lavcore 0.11.0 - samplefmt.h
 745   Add sample format functions in libavcore/samplefmt.h:
 746   av_get_sample_fmt_name(),
 747   av_get_sample_fmt(),
 748   av_get_sample_fmt_string(),
 749   and deprecate the corresponding libavcodec/audioconvert.h functions:
 750   avcodec_get_sample_fmt_name(),
 751   avcodec_get_sample_fmt(),
 752   avcodec_sample_fmt_string().
 753
 754 2010-11-02 - 262d1c5 - lavcore 0.10.0 - samplefmt.h
 755   Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum
 756   SampleFormat.
 757
 758 2010-10-16 - 2a24df9 - lavfi 1.52.0 - avfilter_graph_config()
 759   Add the function avfilter_graph_config() in avfiltergraph.h.
 760
 761 2010-10-15 - 03700d3 - lavf 52.83.0 - metadata API
 762   Change demuxers to export metadata in generic format and
 763   muxers to accept generic format. Deprecate the public
 764   conversion API.
 765
 766 2010-10-10 - 867ae7a - lavfi 1.49.0 - AVFilterLink.time_base
 767   Add time_base field to AVFilterLink.
 768
 769 2010-09-27 - c85eef4 - lavu 50.31.0 - av_set_options_string()
 770   Move av_set_options_string() from libavfilter/parseutils.h to
 771   libavutil/opt.h.
 772
 773 2010-09-27 - acc0490 - lavfi 1.47.0 - AVFilterLink
 774   Make the AVFilterLink fields srcpad and dstpad store the pointers to
 775   the source and destination pads, rather than their indexes.
 776
 777 2010-09-27 - 372e288 - lavu 50.30.0 - av_get_token()
 778   Move av_get_token() from libavfilter/parseutils.h to
 779   libavutil/avstring.h.
 780
 781 2010-09-26 - 635d4ae - lsws 0.12.0 - swscale.h
 782   Add the functions sws_alloc_context() and sws_init_context().
 783
 784 2010-09-26 - 6ed0404 - lavu 50.29.0 - opt.h
 785   Move libavcodec/opt.h to libavutil/opt.h.
 786
 787 2010-09-24 - 1c1c80f - lavu 50.28.0 - av_log_set_flags()
 788   Default of av_log() changed due to many problems to the old no repeat
 789   detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before
 790   enabling it for your app!.
 791
 792 2010-09-24 - f66eb58 - lavc 52.90.0 - av_opt_show2()
 793   Deprecate av_opt_show() in favor or av_opt_show2().
 794
 795 2010-09-14 - bc6f0af - lavu 50.27.0 - av_popcount()
 796   Add av_popcount() to libavutil/common.h.
 797
 798 2010-09-08 - c6c98d0 - lavu 50.26.0 - av_get_cpu_flags()
 799   Add av_get_cpu_flags().
 800
 801 2010-09-07 - 34017fd - lavcore 0.9.0 - av_image_copy()
 802   Add av_image_copy().
 803
 804 2010-09-07 - 9686abb - lavcore 0.8.0 - av_image_copy_plane()
 805   Add av_image_copy_plane().
 806
 807 2010-09-07 - 9b7269e - lavcore 0.7.0 - imgutils.h
 808   Adopt hierarchical scheme for the imgutils.h function names,
 809   deprecate the old names.
 810
 811 2010-09-04 - 7160bb7 - lavu 50.25.0 - AV_CPU_FLAG_*
 812   Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
 813   of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
 814
 815 2010-08-26 - 5da19b5 - lavc 52.87.0 - avcodec_get_channel_layout()
 816   Add avcodec_get_channel_layout() in audioconvert.h.
 817
 818 2010-08-20 - e344336 - lavcore 0.6.0 - av_fill_image_max_pixsteps()
 819   Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().
 820
 821 2010-08-18 - a6ddf8b - lavcore 0.5.0 - av_fill_image_max_pixstep()
 822   Add av_fill_image_max_pixstep() in imgutils.h.
 823
 824 2010-08-17 - 4f2d2e4 - lavu 50.24.0 - AV_NE()
 825   Add the AV_NE macro.
 826
 827 2010-08-17 - ad2c950 - lavfi 1.36.0 - audio framework
 828   Implement AVFilterBufferRefAudioProps struct for audio properties,
 829   get_audio_buffer(), filter_samples() functions and related changes.
 830
 831 2010-08-12 - 81c1eca - lavcore 0.4.0 - av_get_image_linesize()
 832   Add av_get_image_linesize() in imgutils.h.
 833
 834 2010-08-11 - c1db7bf - lavfi 1.34.0 - AVFilterBufferRef
 835   Resize data and linesize arrays in AVFilterBufferRef to 8.
 836
 837   This change breaks libavfilter API/ABI.
 838
 839 2010-08-11 - 9f08d80 - lavc 52.85.0 - av_picture_data_copy()
 840   Add av_picture_data_copy in avcodec.h.
 841
 842 2010-08-11 - 84c0386 - lavfi 1.33.0 - avfilter_open()
 843   Change avfilter_open() signature:
 844   AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
 845   int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
 846
 847   This change breaks libavfilter API/ABI.
 848
 849 2010-08-11 - cc80caf - lavfi 1.32.0 - AVFilterBufferRef
 850   Add a type field to AVFilterBufferRef, and move video specific
 851   properties to AVFilterBufferRefVideoProps.
 852
 853   This change breaks libavfilter API/ABI.
 854
 855 2010-08-07 - 5d4890d - lavfi 1.31.0 - AVFilterLink
 856   Rename AVFilterLink fields:
 857   AVFilterLink.srcpic    ->  AVFilterLink.src_buf
 858   AVFilterLink.cur_pic   ->  AVFilterLink.cur_buf
 859   AVFilterLink.outpic    ->  AVFilterLink.out_buf
 860
 861 2010-08-07 - 7fce481 - lavfi 1.30.0
 862   Rename functions and fields:
 863   avfilter_(un)ref_pic       -> avfilter_(un)ref_buffer
 864   avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
 865   AVFilterBufferRef.pic      -> AVFilterBufferRef.buffer
 866
 867 2010-08-07 - ecc8dad - lavfi 1.29.0 - AVFilterBufferRef
 868   Rename AVFilterPicRef to AVFilterBufferRef.
 869
 870 2010-08-07 - d54e094 - lavfi 1.28.0 - AVFilterBuffer
 871   Move format field from AVFilterBuffer to AVFilterPicRef.
 872
 873 2010-08-06 - bf176f5 - lavcore 0.3.0 - av_check_image_size()
 874   Deprecate avcodec_check_dimensions() in favor of the function
 875   av_check_image_size() defined in libavcore/imgutils.h.
 876
 877 2010-07-30 - 56b5e9d - lavfi 1.27.0 - AVFilterBuffer
 878   Increase size of the arrays AVFilterBuffer.data and
 879   AVFilterBuffer.linesize from 4 to 8.
 880
 881   This change breaks libavfilter ABI.
 882
 883 2010-07-29 - e7bd48a - lavcore 0.2.0 - imgutils.h
 884   Add functions av_fill_image_linesizes() and
 885   av_fill_image_pointers(), declared in libavcore/imgutils.h.
 886
 887 2010-07-27 - 126b638 - lavcore 0.1.0 - parseutils.h
 888   Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()
 889   defined in libavcodec in favor of the newly added functions
 890   av_parse_video_size() and av_parse_video_rate() declared in
 891   libavcore/parseutils.h.
 892
 893 2010-07-23 - 4485247 - lavu 50.23.0 - mathematics.h
 894   Add the M_PHI constant definition.
 895
 896 2010-07-22 - bdab614 - lavfi 1.26.0 - media format generalization
 897   Add a type field to AVFilterLink.
 898
 899   Change the field types:
 900   enum PixelFormat format   -> int format   in AVFilterBuffer
 901   enum PixelFormat *formats -> int *formats in AVFilterFormats
 902   enum PixelFormat *format  -> int format   in AVFilterLink
 903
 904   Change the function signatures:
 905   AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
 906   AVFilterFormats *avfilter_make_format_list(const int *fmts);
 907
 908   int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
 909   int avfilter_add_format    (AVFilterFormats **avff, int fmt);
 910
 911   AVFilterFormats *avfilter_all_colorspaces(void); ->
 912   AVFilterFormats *avfilter_all_formats    (enum AVMediaType type);
 913
 914   This change breaks libavfilter API/ABI.
 915
 916 2010-07-21 - aac6ca6 - lavcore 0.0.0
 917   Add libavcore.
 918
 919 2010-07-17 - b5c582f - lavfi 1.25.0 - AVFilterBuffer
 920   Remove w and h fields from AVFilterBuffer.
 921
 922 2010-07-17 - f0d77b2 - lavfi 1.24.0 - AVFilterBuffer
 923   Rename AVFilterPic to AVFilterBuffer.
 924
 925 2010-07-17 - 57fe80f - lavf 52.74.0 - url_fskip()
 926   Make url_fskip() return an int error code instead of void.
 927
 928 2010-07-11 - 23940f1 - lavc 52.83.0
 929   Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.
 930   Add AVLPCType enum.
 931   Deprecate AVCodecContext.use_lpc.
 932
 933 2010-07-11 - e1d7c88 - lavc 52.82.0 - avsubtitle_free()
 934   Add a function for free the contents of a AVSubtitle generated by
 935   avcodec_decode_subtitle.
 936
 937 2010-07-11 - b91d08f - lavu 50.22.0 - bswap.h and intreadwrite.h
 938   Make the bswap.h and intreadwrite.h API public.
 939
 940 2010-07-08 - ce1cd1c - lavu 50.21.0 - pixdesc.h
 941   Rename read/write_line() to av_read/write_image_line().
 942
 943 2010-07-07 - 4d508e4 - lavfi 1.21.0 - avfilter_copy_picref_props()
 944   Add avfilter_copy_picref_props().
 945
 946 2010-07-03 - 2d525ef - lavc 52.79.0
 947   Add FF_COMPLIANCE_UNOFFICIAL and change all instances of
 948   FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.
 949
 950 2010-07-02 - 89eec74 - lavu 50.20.0 - lfg.h
 951   Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through
 952   lfg.h.
 953
 954 2010-06-28 - a52e2c3 - lavfi 1.20.1 - av_parse_color()
 955   Extend av_parse_color() syntax, make it accept an alpha value specifier and
 956   set the alpha value to 255 by default.
 957
 958 2010-06-22 - 735cf6b - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class
 959   Add priv_data_size and priv_data_class to URLProtocol.
 960
 961 2010-06-22 - ffbb289 - lavf 52.70.0 - url_alloc(), url_connect()
 962   Add url_alloc() and url_connect().
 963
 964 2010-06-22 - 9b07a2d - lavf 52.69.0 - av_register_protocol2()
 965   Add av_register_protocol2(), deprecating av_register_protocol().
 966
 967 2010-06-09 - 65db058 - lavu 50.19.0 - av_compare_mod()
 968   Add av_compare_mod() to libavutil/mathematics.h.
 969
 970 2010-06-05 - 0b99215 - lavu 50.18.0 - eval API
 971   Make the eval API public.
 972
 973 2010-06-04 - 31878fc - lavu 50.17.0 - AV_BASE64_SIZE
 974   Add AV_BASE64_SIZE() macro.
 975
 976 2010-06-02 - 7e566bb - lavc 52.73.0 - av_get_codec_tag_string()
 977   Add av_get_codec_tag_string().
 978
 979 2010-06-01 - 2b99142 - lsws 0.11.0 - convertPalette API
 980   Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
 981
 982 2010-05-26 - 93ebfee - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
 983   Add CODEC_CAP_EXPERIMENTAL flag.
 984   NOTE: this was backported to 0.6
 985
 986 2010-05-23 - 9977863 - lavu 50.16.0 - av_get_random_seed()
 987   Add av_get_random_seed().
 988
 989 2010-05-18 - 796ac23 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
 990   Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.
 991   NOTE: this was backported to 0.6
 992
 993 2010-05-09 - b6bc205 - lavfi 1.20.0 - AVFilterPicRef
 994   Add interlaced and top_field_first fields to AVFilterPicRef.
 995
 996 ------------------------------8<-------------------------------------
 997                    0.6 branch was cut here
 998 ----------------------------->8--------------------------------------
 999
1000 2010-05-01 - 8e2ee18 - lavf 52.62.0 - probe function
1001   Add av_probe_input_format2 to API, it allows ignoring probe
1002   results below given score and returns the actual probe score.
1003
1004 2010-04-01 - 3dd6180 - lavf 52.61.0 - metadata API
1005   Add a flag for av_metadata_set2() to disable overwriting of
1006   existing tags.
1007
1008 2010-04-01 - 0fb49b5 - lavc 52.66.0
1009   Add avcodec_get_edge_width().
1010
1011 2010-03-31 - d103218 - lavc 52.65.0
1012   Add avcodec_copy_context().
1013
1014 2010-03-31 - 1a70d12 - lavf 52.60.0 - av_match_ext()
1015   Make av_match_ext() public.
1016
1017 2010-03-31 - 1149150 - lavu 50.14.0 - AVMediaType
1018   Move AVMediaType enum from libavcodec to libavutil.
1019
1020 2010-03-31 - 72415b2 - lavc 52.64.0 - AVMediaType
1021   Define AVMediaType enum, and use it instead of enum CodecType, which
1022   is deprecated and will be dropped at the next major bump.
1023
1024 2010-03-25 - 8795823 - lavu 50.13.0 - av_strerror()
1025   Implement av_strerror().
1026
1027 2010-03-23 - e1484eb - lavc 52.60.0 - av_dct_init()
1028   Support DCT-I and DST-I.
1029
1030 2010-03-15 - b8819c8 - lavf 52.56.0 - AVFormatContext.start_time_realtime
1031   Add AVFormatContext.start_time_realtime field.
1032
1033 2010-03-13 - 5bb5c1d - lavfi 1.18.0 - AVFilterPicRef.pos
1034   Add AVFilterPicRef.pos field.
1035
1036 2010-03-13 - 60c144f - lavu 50.12.0 - error.h
1037   Move error code definitions from libavcodec/avcodec.h to
1038   the new public header libavutil/error.h.
1039
1040 2010-03-07 - c709483 - lavc 52.56.0 - avfft.h
1041   Add public FFT interface.
1042
1043 2010-03-06 - ac6ef86 - lavu 50.11.0 - av_stristr()
1044   Add av_stristr().
1045
1046 2010-03-03 - 4b83fc0 - lavu 50.10.0 - av_tree_enumerate()
1047   Add av_tree_enumerate().
1048
1049 2010-02-07 - b687c1a - lavu 50.9.0 - av_compare_ts()
1050   Add av_compare_ts().
1051
1052 2010-02-05 - 3f3dc76 - lsws 0.10.0 - sws_getCoefficients()
1053   Add sws_getCoefficients().
1054
1055 2010-02-01 - ca76a11 - lavf 52.50.0 - metadata API
1056   Add a list of generic tag names, change 'author' -> 'artist',
1057   'year' -> 'date'.
1058
1059 2010-01-30 - 80a07f6 - lavu 50.8.0 - av_get_pix_fmt()
1060   Add av_get_pix_fmt().
1061
1062 2010-01-21 - 01cc47d - lsws 0.9.0 - sws_scale()
1063   Change constness attributes of sws_scale() parameters.
1064
1065 2010-01-10 - 3fb8e77 - lavfi 1.15.0 - avfilter_graph_config_links()
1066   Add a log_ctx parameter to avfilter_graph_config_links().
1067
1068 2010-01-07 - 8e9767f - lsws 0.8.0 - sws_isSupported{In,Out}put()
1069   Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
1070
1071 2010-01-06 - c1d662f - lavfi 1.14.0 - avfilter_add_colorspace()
1072   Change the avfilter_add_colorspace() signature, make it accept an
1073   (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
1074
1075 2010-01-03 - 4fd1f18 - lavfi 1.13.0 - avfilter_add_colorspace()
1076   Add avfilter_add_colorspace().
1077
1078 2010-01-02 - 8eb631f - lavf 52.46.0 - av_match_ext()
1079   Add av_match_ext(), it should be used in place of match_ext().
1080
1081 2010-01-01 - a1f547b - lavf 52.45.0 - av_guess_format()
1082   Add av_guess_format(), it should be used in place of guess_format().
1083
1084 2009-12-13 - a181981 - lavf 52.43.0 - metadata API
1085   Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and
1086   AV_METADATA_DONT_STRDUP_VAL.
1087
1088 2009-12-13 - 277c733 - lavu 50.7.0 - avstring.h API
1089   Add av_d2str().
1090
1091 2009-12-13 - 02b398e - lavc 52.42.0 - AVStream
1092   Add avg_frame_rate.
1093
1094 2009-12-12 - 3ba69a1 - lavu 50.6.0 - av_bmg_next()
1095   Introduce the av_bmg_next() function.
1096
1097 2009-12-05 - a13a543 - lavfi 1.12.0 - avfilter_draw_slice()
1098   Add a slice_dir parameter to avfilter_draw_slice().
1099
1100 2009-11-26 - 4cc3f6a - lavfi 1.11.0 - AVFilter
1101   Remove the next field from AVFilter, this is not anymore required.
1102
1103 2009-11-25 - 1433c4a - lavfi 1.10.0 - avfilter_next()
1104   Introduce the avfilter_next() function.
1105
1106 2009-11-25 - 86a60fa - lavfi 1.9.0 - avfilter_register()
1107   Change the signature of avfilter_register() to make it return an
1108   int. This is required since now the registration operation may fail.
1109
1110 2009-11-25 - 74a0059 - lavu 50.5.0 - pixdesc.h API
1111   Make the pixdesc.h API public.
1112
1113 2009-10-27 - 243110f - lavfi 1.5.0 - AVFilter.next
1114   Add a next field to AVFilter, this is used for simplifying the
1115   registration and management of the registered filters.
1116
1117 2009-10-23 - cccd292 - lavfi 1.4.1 - AVFilter.description
1118   Add a description field to AVFilter.
1119
1120 2009-10-19 - 6b5dc05 - lavfi 1.3.0 - avfilter_make_format_list()
1121   Change the interface of avfilter_make_format_list() from
1122   avfilter_make_format_list(int n, ...) to
1123   avfilter_make_format_list(enum PixelFormat *pix_fmts).
1124
1125 2009-10-18 - 0eb4ff9 - lavfi 1.0.0 - avfilter_get_video_buffer()
1126   Make avfilter_get_video_buffer() recursive and add the w and h
1127   parameters to it.
1128
1129 2009-10-07 - 46c40e4 - lavfi 0.5.1 - AVFilterPic
1130   Add w and h fields to AVFilterPic.
1131
1132 2009-06-22 - 92400be - lavf 52.34.1 - AVFormatContext.packet_size
1133   This is now an unsigned int instead of a signed int.
1134
1135 2009-06-19 - a4276ba - lavc 52.32.0 - AVSubtitle.pts
1136   Add a pts field to AVSubtitle which gives the subtitle packet pts
1137   in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
1138   not work right without this.
1139
1140 2009-06-03 - 8f3f2e0 - lavc 52.30.2 - AV_PKT_FLAG_KEY
1141   PKT_FLAG_KEY has been deprecated and will be dropped at the next
1142   major version. Use AV_PKT_FLAG_KEY instead.
1143
1144 2009-06-01 - f988ce6 - lavc 52.30.0 - av_lockmgr_register()
1145   av_lockmgr_register() can be used to register a callback function
1146   that lavc (and in the future, libraries that depend on lavc) can use
1147   to implement mutexes. The application should provide a callback function
1148   that implements the AV_LOCK_* operations described in avcodec.h.
1149   When the lock manager is registered, FFmpeg is guaranteed to behave
1150   correctly in a multi-threaded application.
1151
1152 2009-04-30 - ce1d9c8 - lavc 52.28.0 - av_free_packet()
1153   av_free_packet() is no longer an inline function. It is now exported.
1154
1155 2009-04-11 - 80d403f - lavc 52.25.0 - deprecate av_destruct_packet_nofree()
1156   Please use NULL instead. This has been supported since r16506
1157   (lavf > 52.23.1, lavc > 52.10.0).
1158
1159 2009-04-07 - 7a00bba - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
1160   The old decoding functions are deprecated, all new code should use the
1161   new functions avcodec_decode_video2(), avcodec_decode_audio3() and
1162   avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
1163   argument instead of a const uint8_t *buf / int buf_size pair.
1164
1165 2009-04-03 - 7b09db3 - lavu 50.3.0 - av_fifo_space()
1166   Introduce the av_fifo_space() function.
1167
1168 2009-04-02 - fabd246 - lavc 52.23.0 - AVPacket
1169   Move AVPacket declaration from libavformat/avformat.h to
1170   libavcodec/avcodec.h.
1171
1172 2009-03-22 - 6e08ca9 - lavu 50.2.0 - RGB32 pixel formats
1173   Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
1174   PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
1175   Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
1176   PIX_FMT_BGR32_1 are now macros.
1177   avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
1178   Re-sort the enum PixelFormat list accordingly.
1179   This change breaks API/ABI backward compatibility.
1180
1181 2009-03-22 - f82674e - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
1182   Add the enum PixelFormat values:
1183   PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
1184   PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
1185
1186 2009-03-21 - ee6624e - lavu 50.0.0  - av_random*
1187   The Mersenne Twister PRNG implemented through the av_random* functions
1188   was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
1189   instead.
1190
1191 2009-03-08 - 41dd680 - lavu 50.0.0  - AVFifoBuffer
1192   av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
1193   and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
1194   and av_fifo_realloc2.
1195   In addition, the order of the function arguments of av_fifo_generic_read
1196   was changed to match av_fifo_generic_write.
1197   The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
1198   applications, they may not use sizeof() or directly access members.
1199
1200 2009-03-01 - ec26457 - lavf 52.31.0 - Generic metadata API
1201   Introduce a new metadata API (see av_metadata_get() and friends).
1202   The old API is now deprecated and should not be used anymore. This especially
1203   includes the following structure fields:
1204     - AVFormatContext.title
1205     - AVFormatContext.author
1206     - AVFormatContext.copyright
1207     - AVFormatContext.comment
1208     - AVFormatContext.album
1209     - AVFormatContext.year
1210     - AVFormatContext.track
1211     - AVFormatContext.genre
1212     - AVStream.language
1213     - AVStream.filename
1214     - AVProgram.provider_name
1215     - AVProgram.name
1216     - AVChapter.title