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:    2013-03-xx
   6 libavdevice:   2013-03-xx
   7 libavfilter:   2013-12-xx
   8 libavformat:   2013-03-xx
   9 libavresample: 2012-10-05
  10 libswscale:    2011-06-20
  11 libavutil:     2013-12-xx
  12
  13
  14 API changes, most recent first:
  15
  16 2014-02-xx - xxxxxxx - lavc 55.35.0 - avcodec.h
  17   Give the name AVPacketSideData to the previously anonymous struct used for
  18   AVPacket.side_data.
  19
  20 2014-xx-xx - xxxxxxx - lavu 53.06.0 - pixfmt.h
  21   Add RGBA64 pixel format and variants.
  22
  23 2014-xx-xx - xxxxxxx - lavu 53.05.0 - frame.h
  24   Add av_frame_copy() for copying the frame data.
  25
  26 2014-02-xx - xxxxxxx - lavr 1.2.0 - avresample.h
  27   Add avresample_is_open() for checking whether a resample context is open.
  28
  29 2014-xx-xx - xxxxxxx - lavu 53.04.0  - opt.h
  30   Add AV_OPT_FLAG_EXPORT and AV_OPT_FLAG_READONLY to mark options meant (only)
  31   for reading.
  32
  33 2014-xx-xx - xxxxxxx - lavu 53.03.01 - opt.h
  34   Deprecate unused AV_OPT_FLAG_METADATA.
  35
  36 2014-02-xx - xxxxxxx - lavu 53.3.0 - frame.h
  37   Add AV_FRAME_DATA_DOWNMIX_INFO value to the AVFrameSideDataType enum and
  38   downmix_info.h API, which identify downmix-related metadata.
  39
  40 2014-02-04 - d9ae103 - lavf 55.11.0 - avformat.h
  41   Add AVFormatContext.max_interleave_delta for controlling amount of buffering
  42   when interleaving.
  43
  44 2014-01-20 - 93c553c - lavc 55.32.1 - avcodec.h
  45   Edges are not required anymore on video buffers allocated by get_buffer2()
  46   (i.e. as if the CODEC_FLAG_EMU_EDGE flag was always on). Deprecate
  47   CODEC_FLAG_EMU_EDGE and avcodec_get_edge_width().
  48
  49 2014-01-05 - 5b4797a - lavu 53.2.0 - frame.h
  50   Add AV_FRAME_DATA_MATRIXENCODING value to the AVFrameSideDataType enum, which
  51   identifies AVMatrixEncoding data.
  52
  53 2014-01-05 - 5c437fb - lavu 53.1.0 - channel_layout.h
  54   Add values for various Dolby flags to the AVMatrixEncoding enum.
  55
  56 2013-12-20 - 2a41826 - lavc 55.30.0 - avcodec.h
  57   Add HEVC profiles
  58
  59 2013-12-11 - b9fb59d,9431356,d7b3ee9 - lavc 55.28.1 - avcodec.h
  60   av_frame_alloc(), av_frame_unref() and av_frame_free() now can and should be
  61   used instead of avcodec_alloc_frame(), avcodec_get_frame_defaults() and
  62   avcodec_free_frame() respectively. The latter three functions are deprecated.
  63
  64 2013-12-09 - 7e244c6- - lavu 52.20.0 - frame.h
  65   Add AV_FRAME_DATA_STEREO3D value to the AVFrameSideDataType enum and
  66   stereo3d.h API, that identify codec-independent stereo3d information.
  67
  68 2013-11-26 - 1eaac1d- - lavu 52.19.0 - frame.h
  69   Add AV_FRAME_DATA_A53_CC value to the AVFrameSideDataType enum, which
  70   identifies ATSC A53 Part 4 Closed Captions data.
  71
  72 2013-11-14 - cce3e0a - lavu 52.18.0 - mem.h
  73   Move av_fast_malloc() and av_fast_realloc() for libavcodec to libavutil.
  74
  75 2013-11-14 - 8941971 - lavc 55.27.0 - avcodec.h
  76   Deprecate AVCodecContext.error_rate, it is replaced by the 'error_rate'
  77   private option of the mpegvideo encoder family.
  78
  79 2013-11-14 - 728c465 - lavc 55.26.0 - vdpau.h
  80   Add av_vdpau_get_profile().
  81   Add av_vdpau_alloc_context(). This function must from now on be
  82   used for allocating AVVDPAUContext.
  83
  84 2013-11-04 - cd8f772 - lavc 55.25.0 - avcodec.h
  85   Add ITU-R BT.2020 and other not yet included values to color primaries,
  86   transfer characteristics and colorspaces.
  87
  88 2013-10-31 - 28096e0 - lavu 52.17.0 - frame.h
  89   Add AVFrame.flags and AV_FRAME_FLAG_CORRUPT.
  90
  91 2013-09-28 - 0767bfd - lavfi 3.11.0 - avfilter.h
  92   Add AVFilterGraph.execute and AVFilterGraph.opaque for custom slice threading
  93   implementations.
  94
  95 2013-09-21 - e208e6d - lavu 52.16.0 - pixfmt.h
  96   Add interleaved 4:2:2 8/10-bit formats AV_PIX_FMT_NV16 and
  97   AV_PIX_FMT_NV20.
  98
  99 2013-09-16 - 3feb3d6 - lavu 52.15.0 - mem.h
 100   Add av_reallocp.
 101
 102 2013-08-10 - 5a9a9d4 - lavc 55.16.0 - avcodec.h
 103   Extend AVPacket API with av_packet_unref, av_packet_ref,
 104   av_packet_move_ref, av_packet_copy_props, av_packet_free_side_data.
 105
 106 2013-08-05 - f824535 - lavc 55.13.0 - avcodec.h
 107   Deprecate the bitstream-related members from struct AVVDPAUContext.
 108   The bistream buffers no longer need to be explicitly freed.
 109
 110 2013-08-05 - 549294f - lavc 55.12.0 - avcodec.h
 111   Deprecate the CODEC_CAP_HWACCEL_VDPAU codec capability. Use CODEC_CAP_HWACCEL
 112   and select the AV_PIX_FMT_VDPAU format with get_format() instead.
 113
 114 2013-08-05 - a0ad5d0 - lavu 52.14.0 - pixfmt.h
 115   Deprecate AV_PIX_FMT_VDPAU_*. Use AV_PIX_FMT_VDPAU instead.
 116
 117 2013-08-02 - a8b1927 - lavc 55.11.0 - avcodec.h
 118   Add output_picture_number to AVCodecParserContext.
 119
 120 2013-06-24 - 95d5246 - lavc 55.10.0 - avcodec.h
 121   Add MPEG-2 AAC profiles
 122
 123 2013-06-04 - fc962d4 - lavu 52.13.0 - mem.h
 124   Add av_realloc_array and av_reallocp_array
 125
 126 2013-05-24 - 129bb23 - lavfi 3.10.0 - avfilter.h
 127   Add support for slice multithreading to lavfi. Filters supporting threading
 128   are marked with AVFILTER_FLAG_SLICE_THREADS.
 129   New fields AVFilterContext.thread_type, AVFilterGraph.thread_type and
 130   AVFilterGraph.nb_threads (accessible directly or through AVOptions) may be
 131   used to configure multithreading.
 132
 133 2013-05-24 - 2a6eaea - lavu 52.12.0 - cpu.h
 134   Add av_cpu_count() function for getting the number of logical CPUs.
 135
 136 2013-05-24 - b493847 - lavc 55.7.0 - avcodec.h
 137   Add picture_structure to AVCodecParserContext.
 138
 139 2013-05-15 - e6c4ac7 - lavu 52.11.0 - pixdesc.h
 140   Replace PIX_FMT_* flags with AV_PIX_FMT_FLAG_*.
 141
 142 2013-04-03 - 507b1e4 - lavc 55.4.0 - avcodec.h
 143   Add field_order to AVCodecParserContext.
 144
 145 2013-04-19 - 5e83d9a - lavc 55.2.0 - avcodec.h
 146   Add CODEC_FLAG_UNALIGNED to allow decoders to produce unaligned output.
 147
 148 2013-04-11 - lavfi 3.8.0
 149   38f0c07 - Move all content from avfiltergraph.h to avfilter.h. Deprecate
 150             avfilterhraph.h, user applications should include just avfilter.h
 151   bc1a985 - Add avfilter_graph_alloc_filter(), deprecate avfilter_open() and
 152             avfilter_graph_add_filter().
 153   1113672 - Add AVFilterContext.graph pointing to the AVFilterGraph that contains the
 154             filter.
 155   48a5ada - Add avfilter_init_str(), deprecate avfilter_init_filter().
 156   1ba95a9 - Add avfilter_init_dict().
 157   7cdd737 - Add AVFilter.flags field and AVFILTER_FLAG_DYNAMIC_{INPUTS,OUTPUTS} flags.
 158   7e8fe4b - Add avfilter_pad_count() for counting filter inputs/outputs.
 159   fa2a34c - Add avfilter_next(), deprecate av_filter_next().
 160             Deprecate avfilter_uninit().
 161
 162 2013-04-09 - lavfi 3.7.0 - avfilter.h
 163   b439c99 - Add AVFilter.priv_class for exporting filter options through the
 164             AVOptions API in the similar way private options work in lavc and lavf.
 165   8114c10 - Add avfilter_get_class().
 166   Switch all filters to use AVOptions.
 167
 168 2013-03-19 - 2c328a9 - lavu 52.9.0 - pixdesc.h
 169   Add av_pix_fmt_count_planes() function for counting planes in a pixel format.
 170
 171 2013-03-16 - 42c7c61 - lavfi 3.6.0
 172   Add AVFilterGraph.nb_filters, deprecate AVFilterGraph.filter_count.
 173
 174 2013-03-08 - Reference counted buffers - lavu 52.8.0, lavc 55.0.0, lavf 55.0.0,
 175 lavd 54.0.0, lavfi 3.5.0
 176   8e401db, 1cec062 - add a new API for reference counted buffers and buffer
 177                      pools (new header libavutil/buffer.h).
 178   1afddbe - add AVPacket.buf to allow reference counting for the AVPacket data.
 179             Add av_packet_from_data() function for constructing packets from
 180             av_malloc()ed data.
 181   7ecc2d4 - move AVFrame from lavc to lavu (new header libavutil/frame.h), add
 182             AVFrame.buf/extended_buf to allow reference counting for the AVFrame
 183             data. Add new API for working with reference-counted AVFrames.
 184   759001c - add the refcounted_frames field to AVCodecContext to make audio and
 185             video decoders return reference-counted frames. Add get_buffer2()
 186             callback to AVCodecContext which allocates reference-counted frames.
 187             Add avcodec_default_get_buffer2() as the default get_buffer2()
 188             implementation.
 189             Deprecate AVCodecContext.get_buffer() / release_buffer() /
 190             reget_buffer(), avcodec_default_get_buffer(),
 191             avcodec_default_reget_buffer(), avcodec_default_release_buffer().
 192             Remove avcodec_default_free_buffers(), which should not have ever
 193             been called from outside of lavc.
 194             Deprecate the following AVFrame fields:
 195                 * base -- is now stored in AVBufferRef
 196                 * reference, type, buffer_hints -- are unnecessary in the new API
 197                 * hwaccel_picture_private, owner, thread_opaque -- should not
 198                   have been acessed from outside of lavc
 199                 * qscale_table, qstride, qscale_type, mbskip_table, motion_val,
 200                   mb_type, dct_coeff, ref_index -- mpegvideo-specific tables,
 201                   which are not exported anymore.
 202   7e35037 - switch libavfilter to use AVFrame instead of AVFilterBufferRef. Add
 203             av_buffersrc_add_frame(), deprecate av_buffersrc_buffer().
 204             Add av_buffersink_get_frame() and av_buffersink_get_samples(),
 205             deprecate av_buffersink_read() and av_buffersink_read_samples().
 206             Deprecate AVFilterBufferRef and all functions for working with it.
 207
 208 2013-03-17 - 12c5c1d - lavu 52.8.0 - avstring.h
 209   Add av_isdigit, av_isgraph, av_isspace, av_isxdigit.
 210
 211 2013-02-23 - 9f12235 - lavfi 3.4.0 - avfiltergraph.h
 212   Add resample_lavr_opts to AVFilterGraph for setting libavresample options
 213   for auto-inserted resample filters.
 214
 215 2013-01-25 - 38c1466 - lavu 52.7.0 - dict.h
 216   Add av_dict_parse_string() to set multiple key/value pairs at once from a
 217   string.
 218
 219 2013-01-25 - b85a5e8 - lavu 52.6.0 - avstring.h
 220   Add av_strnstr()
 221
 222 2013-01-15 - 8ee288d - lavu 52.5.0 - hmac.h
 223   Add AVHMAC.
 224
 225 2013-01-13 - 44e065d - lavc 54.36.0 - vdpau.h
 226   Add AVVDPAUContext struct for VDPAU hardware-accelerated decoding.
 227
 228 2013-01-12 - 169fb94 - lavu 52.4.0 - pixdesc.h
 229   Add AV_PIX_FMT_VDPAU flag.
 230
 231 2013-01-07 - 074a00d - lavr 1.1.0
 232   Add avresample_set_channel_mapping() for input channel reordering,
 233   duplication, and silencing.
 234
 235 ------------------------------8<-------------------------------------
 236                    9 branch was cut here
 237 ----------------------------->8--------------------------------------
 238
 239 2012-12-29 - d8fd06c - lavu 52.3.0 - avstring.h
 240   Add av_basename() and av_dirname().
 241
 242 2012-11-11 - 5980f5d - lavu 52.2.0 - audioconvert.h
 243   Rename audioconvert.h to channel_layout.h. audioconvert.h is now deprecated.
 244
 245 2012-11-05 - dfde8a3 - lavu 52.1.0 - intmath.h
 246   Add av_ctz() for trailing zero bit count
 247
 248 2012-10-21 - a893655 - lavu 51.45.0 - error.h
 249   Add AVERROR_EXPERIMENTAL
 250
 251 2012-10-12 - d2fcb35 - lavu 51.44.0 - pixdesc.h
 252   Add functions for accessing pixel format descriptors.
 253   Accessing the av_pix_fmt_descriptors array directly is now
 254   deprecated.
 255
 256 2012-10-11 - 9a92aea - lavu 51.43.0 - aes.h, md5.h, sha.h, tree.h
 257   Add functions for allocating the opaque contexts for the algorithms,
 258   deprecate the context size variables.
 259
 260 2012-10-10 - b522000 - lavf 54.18.0 - avio.h
 261   Add avio_closep to complement avio_close.
 262
 263 2012-10-08 - 78071a1 - lavu 51.42.0 - pixfmt.h
 264   Rename PixelFormat to AVPixelFormat and all PIX_FMT_* to AV_PIX_FMT_*.
 265   To provide backwards compatibility, PixelFormat is now #defined as
 266   AVPixelFormat.
 267   Note that this can break user code that includes pixfmt.h and uses the
 268   'PixelFormat' identifier. Such code should either #undef PixelFormat
 269   or stop using the PixelFormat name.
 270
 271 2012-10-05 - e7ba5b1 - lavr 1.0.0 - avresample.h
 272   Data planes parameters to avresample_convert() and
 273   avresample_read() are now uint8_t** instead of void**.
 274   Libavresample is now stable.
 275
 276 2012-09-24 - a42aada - lavc 54.28.0 - avcodec.h
 277   Add avcodec_free_frame(). This function must now
 278   be used for freeing an AVFrame.
 279
 280 2012-09-12 - 8919fee - lavu 51.41.0 - audioconvert.h
 281   Added AV_CH_LOW_FREQUENCY_2 channel mask value.
 282
 283 2012-09-04 - 686a329 - lavu 51.40.0 - opt.h
 284   Reordered the fields in default_val in AVOption, changed which
 285   default_val field is used for which AVOptionType.
 286
 287 2012-08-30 - a231832 - lavc 54.26.1 - avcodec.h
 288   Add codec descriptor properties AV_CODEC_PROP_LOSSY and
 289   AV_CODEC_PROP_LOSSLESS.
 290
 291 2012-08-18 - lavc 54.26 - avcodec.h
 292   Add codec descriptors for accessing codec properties without having
 293   to refer to a specific decoder or encoder.
 294
 295   c223d79 - Add an AVCodecDescriptor struct and functions
 296             avcodec_descriptor_get() and avcodec_descriptor_next().
 297   51efed1 - Add AVCodecDescriptor.props and AV_CODEC_PROP_INTRA_ONLY.
 298   91e59fe - Add avcodec_descriptor_get_by_name().
 299
 300
 301 2012-08-08 - 1d9c2dc - lavu 51.39 - avutil.h
 302   Don't implicitly include libavutil/common.h in avutil.h
 303
 304 2012-08-08 - 987170c - lavu 51.38 - dict.h
 305   Add av_dict_count().
 306
 307 2012-08-07 - 104e10f - lavc 54.25 - avcodec.h
 308   Rename CodecID to AVCodecID and all CODEC_ID_* to AV_CODEC_ID_*.
 309   To provide backwards compatibility, CodecID is now #defined as AVCodecID.
 310   Note that this can break user code that includes avcodec.h and uses the
 311   'CodecID' identifier. Such code should either #undef CodecID or stop using the
 312   CodecID name.
 313
 314 2012-08-03 - 239fdf1 - lavu 51.37.1 - cpu.h
 315                        lsws 2.1.1   - swscale.h
 316   Rename AV_CPU_FLAG_MMX2  ---> AV_CPU_FLAG_MMXEXT.
 317   Rename SWS_CPU_CAPS_MMX2 ---> SWS_CPU_CAPS_MMXEXT.
 318
 319 2012-07-29 - 681ed00 - lavf 54.13.0 - avformat.h
 320   Add AVFMT_FLAG_NOBUFFER for low latency use cases.
 321
 322 2012-07-20 - b70d89a - lavfi 3.0.0 - avfilter.h
 323   Add avfilter_unref_bufferp().
 324
 325 2012-07-10 - 5fade8a - lavu 51.37.0
 326   Add av_malloc_array() and av_mallocz_array()
 327
 328 2012-06-22 - d3d3a32 - lavu 51.34.0
 329   Add av_usleep()
 330
 331 2012-06-20 - ae0a301 - lavu 51.33.0
 332   Move av_gettime() to libavutil, add libavutil/time.h
 333
 334 2012-06-09 - 3971be0 - lavr 0.0.3
 335   Add a parameter to avresample_build_matrix() for Dolby/DPLII downmixing.
 336
 337 2012-06-12 - 9baeff9 - lavfi 2.23.0 - avfilter.h
 338   Add AVFilterContext.nb_inputs/outputs. Deprecate
 339   AVFilterContext.input/output_count.
 340
 341 2012-06-12 - 84b9fbe - lavfi 2.22.0 - avfilter.h
 342   Add avfilter_pad_get_type() and avfilter_pad_get_name(). Those
 343   should now be used instead of accessing AVFilterPad members
 344   directly.
 345
 346 2012-06-12 - b0f0dfc - lavu 51.32.0 - audioconvert.h
 347   Add av_get_channel_layout_channel_index(), av_get_channel_name()
 348   and av_channel_layout_extract_channel().
 349
 350 2012-05-25 - 154486f - lavu 51.31.0 - opt.h
 351   Add av_opt_set_bin()
 352
 353 2012-05-26 - e9cef89 - lavf 54.3.0
 354   Add AVFMT_TS_NONSTRICT format flag to indicate that a muxer supports
 355   non-increasing monotone timestamps.
 356
 357 2012-05-15 - lavfi 2.17.0
 358   Add support for audio filters
 359   ac71230/a2cd9be - add video/audio buffer sink in a new installed
 360                     header buffersink.h
 361   720c6b7 - add av_buffersrc_write_frame(), deprecate
 362             av_vsrc_buffer_add_frame()
 363   ab16504 - add avfilter_copy_buf_props()
 364   9453c9e - add extended_data to AVFilterBuffer
 365   1b8c927 - add avfilter_get_audio_buffer_ref_from_arrays()
 366
 367 2012-05-09 - lavu 51.30.0 - samplefmt.h
 368   142e740 - add av_samples_copy()
 369   6d7f617 - add av_samples_set_silence()
 370
 371 2012-05-09 - a5117a2 - lavc 54.13.1
 372   For audio formats with fixed frame size, the last frame
 373   no longer needs to be padded with silence, libavcodec
 374   will handle this internally (effectively all encoders
 375   behave as if they had CODEC_CAP_SMALL_LAST_FRAME set).
 376
 377 2012-05-07 - 828bd08 - lavc 54.13.0 - avcodec.h
 378   Add sample_rate and channel_layout fields to AVFrame.
 379
 380 2012-05-01 - 4010d72 - lavr 0.0.1
 381   Change AV_MIX_COEFF_TYPE_Q6 to AV_MIX_COEFF_TYPE_Q8.
 382
 383 2012-04-25 - 3527a73 - lavu 51.29.0 - cpu.h
 384   Add av_parse_cpu_flags()
 385
 386 2012-04-24 - c8af852 - lavr 0.0.0
 387   Add libavresample audio conversion library
 388
 389 2012-04-20 - 0c0d1bc - lavu 51.28.0 - audio_fifo.h
 390   Add audio FIFO functions:
 391     av_audio_fifo_free()
 392     av_audio_fifo_alloc()
 393     av_audio_fifo_realloc()
 394     av_audio_fifo_write()
 395     av_audio_fifo_read()
 396     av_audio_fifo_drain()
 397     av_audio_fifo_reset()
 398     av_audio_fifo_size()
 399     av_audio_fifo_space()
 400
 401 2012-04-14 - lavfi 2.16.0 - avfiltergraph.h
 402   d7bcc71 Add avfilter_graph_parse2().
 403   91d3cbe Add avfilter_inout_alloc() and avfilter_inout_free().
 404
 405 2012-04-08 - 4d693b0 - lavu 51.27.0 - samplefmt.h
 406   Add av_get_packed_sample_fmt() and av_get_planar_sample_fmt()
 407
 408 2012-04-05 - 5cc51a5 - lavu 51.26.0 - audioconvert.h
 409   Add av_get_default_channel_layout()
 410
 411 2012-03-20 - 3c90cc2 - lavfo 54.2.0
 412   Deprecate av_read_packet(), use av_read_frame() with
 413   AVFMT_FLAG_NOPARSE | AVFMT_FLAG_NOFILLIN in AVFormatContext.flags
 414
 415 2012-03-06 - 4d851f8 - lavu 51.25.0 - cpu.h
 416   Add av_set_cpu_flags_mask().
 417
 418 2012-03-05 - lavc 54.8.0
 419   6699d07 Add av_get_exact_bits_per_sample()
 420   9524cf7 Add av_get_audio_frame_duration()
 421
 422 2012-03-04 - 44fe77b - lavc 54.7.0 - avcodec.h
 423   Add av_codec_is_encoder/decoder().
 424
 425 2012-03-01 - 442c132 - lavc 54.3.0 - avcodec.h
 426   Add av_packet_shrink_side_data.
 427
 428 2012-02-29 - dd2a4bc - lavf 54.2.0 - avformat.h
 429   Add AVStream.attached_pic and AV_DISPOSITION_ATTACHED_PIC,
 430   used for dealing with attached pictures/cover art.
 431
 432 2012-02-25 - c9bca80 - lavu 51.24.0 - error.h
 433   Add AVERROR_UNKNOWN
 434   NOTE: this was backported to 0.8
 435
 436 2012-02-20 - e9cda85 - lavc 54.2.0
 437   Add duration field to AVCodecParserContext
 438
 439 2012-02-20 - 0b42a93 - lavu 51.23.1 - mathematics.h
 440   Add av_rescale_q_rnd()
 441
 442 2012-02-08 - 38d5533 - lavu 51.22.1 - pixdesc.h
 443   Add PIX_FMT_PSEUDOPAL flag.
 444
 445 2012-02-08 - 52f82a1 - lavc 54.01.0
 446   Add avcodec_encode_video2() and deprecate avcodec_encode_video().
 447
 448 2012-02-01 - 316fc74 - lavc 54.01.0
 449   Add av_fast_padded_malloc() as alternative for av_realloc() when aligned
 450   memory is required. The buffer will always have FF_INPUT_BUFFER_PADDING_SIZE
 451   zero-padded bytes at the end.
 452
 453 2012-01-31 - dd6d3b0 - lavf 54.01.0
 454   Add avformat_get_riff_video_tags() and avformat_get_riff_audio_tags().
 455   NOTE: this was backported to 0.8
 456
 457 2012-01-31 - af08d9a - lavc 54.01.0
 458   Add avcodec_is_open() function.
 459   NOTE: this was backported to 0.8
 460
 461 2012-01-30 - 8b93312 - lavu 51.22.0 - intfloat.h
 462   Add a new installed header libavutil/intfloat.h with int/float punning
 463   functions.
 464   NOTE: this was backported to 0.8
 465
 466 2012-01-25 - lavf 53.22.0
 467   f1caf01 Allow doing av_write_frame(ctx, NULL) for flushing possible
 468           buffered data within a muxer. Added AVFMT_ALLOW_FLUSH for
 469           muxers supporting it (av_write_frame makes sure it is called
 470           only for muxers with this flag).
 471
 472 ------------------------------8<-------------------------------------
 473                    0.8 branch was cut here
 474 ----------------------------->8--------------------------------------
 475
 476 2012-01-15 - lavc 53.34.0
 477   New audio encoding API:
 478   b2c75b6 Add CODEC_CAP_VARIABLE_FRAME_SIZE capability for use by audio
 479           encoders.
 480   5ee5fa0 Add avcodec_fill_audio_frame() as a convenience function.
 481   b2c75b6 Add avcodec_encode_audio2() and deprecate avcodec_encode_audio().
 482           Add AVCodec.encode2().
 483
 484 2012-01-12 - 3167dc9 - lavfi 2.15.0
 485   Add a new installed header -- libavfilter/version.h -- with version macros.
 486
 487 2011-01-03 - b73ec05 - lavu 51.21.0
 488   Add av_popcount64
 489
 490 2011-12-25 - lavfi 2.14.0
 491   e1d9dbf Add a new installed header - buffersrc.h
 492   It contains a new function av_buffersrc_buffer() that allows passing
 493   frames to the 'buffer' filter, but unlike av_vsrc_buffer_add_frame()
 494   it allows for direct rendering.
 495   1c9e340 Add avfilter_copy_frame_props() for copying properties from
 496   AVFrame to AVFilterBufferRef.
 497
 498 2011-12-25 - lavc 53.31.0
 499   Add the following new fields to AVFrame:
 500     b58dbb5 sample_aspect_ratio
 501     3a2ddf7 width, height
 502     8a4a5f6 format
 503
 504 2011-12-18 - 8400b12 - lavc 53.28.1
 505   Deprecate AVFrame.age. The field is unused.
 506
 507 2011-12-12 - 5266045 - lavf 53.17.0
 508   Add avformat_close_input().
 509   Deprecate av_close_input_file() and av_close_input_stream().
 510
 511 2011-12-02 - 0eea212 - lavc 53.25.0
 512   Add nb_samples and extended_data fields to AVFrame.
 513   Deprecate AVCODEC_MAX_AUDIO_FRAME_SIZE.
 514   Deprecate avcodec_decode_audio3() in favor of avcodec_decode_audio4().
 515   avcodec_decode_audio4() writes output samples to an AVFrame, which allows
 516   audio decoders to use get_buffer().
 517
 518 2011-12-04 - 560f773 - lavc 53.24.0
 519   Change AVFrame.data[4]/base[4]/linesize[4]/error[4] to [8] at next major bump.
 520   Change AVPicture.data[4]/linesize[4] to [8] at next major bump.
 521   Change AVCodecContext.error[4] to [8] at next major bump.
 522   Add AV_NUM_DATA_POINTERS to simplify the bump transition.
 523
 524 2011-11-23 - bbb46f3 - lavu 51.18.0
 525   Add av_samples_get_buffer_size(), av_samples_fill_arrays(), and
 526   av_samples_alloc(), to samplefmt.h.
 527
 528 2011-11-23 - 8889cc4 - lavu 51.17.0
 529   Add planar sample formats and av_sample_fmt_is_planar() to samplefmt.h.
 530
 531 2011-11-19 - f3a29b7 - lavc 53.21.0
 532   Move some AVCodecContext fields to a new private struct, AVCodecInternal,
 533   which is accessed from a new field, AVCodecContext.internal.
 534   - fields moved:
 535       AVCodecContext.internal_buffer       --> AVCodecInternal.buffer
 536       AVCodecContext.internal_buffer_count --> AVCodecInternal.buffer_count
 537       AVCodecContext.is_copy               --> AVCodecInternal.is_copy
 538
 539 2011-11-16 - 6270671 - lavu 51.16.0
 540   Add av_timegm()
 541
 542 2011-11-13 - lavf 53.15.0
 543   New interrupt callback API, allowing per-AVFormatContext/AVIOContext
 544   interrupt callbacks.
 545   6aa0b98 Add AVIOInterruptCB struct and the interrupt_callback field to
 546           AVFormatContext.
 547   1dee0ac Add avio_open2() with additional parameters. Those are
 548           an interrupt callback and an options AVDictionary.
 549           This will allow passing AVOptions to protocols after lavf
 550           54.0.
 551
 552 2011-11-06 - ba04ecf - lavu 51.14.0
 553   Add av_strcasecmp() and av_strncasecmp() to avstring.h.
 554
 555 2011-11-06 - 07b172f - lavu 51.13.0
 556   Add av_toupper()/av_tolower()
 557
 558 2011-11-05 - b6d08f4 - lavf 53.13.0
 559   Add avformat_network_init()/avformat_network_deinit()
 560
 561 2011-10-27 - 512557b - lavc 53.15.0
 562   Remove avcodec_parse_frame.
 563   Deprecate AVCodecContext.parse_only and CODEC_CAP_PARSE_ONLY.
 564
 565 2011-10-19 - 569129a - lavf 53.10.0
 566   Add avformat_new_stream(). Deprecate av_new_stream().
 567
 568 2011-10-13 - b631fba - lavf 53.9.0
 569   Add AVFMT_NO_BYTE_SEEK AVInputFormat flag.
 570
 571 2011-10-12 - lavu 51.12.0
 572   AVOptions API rewrite.
 573
 574   - 145f741 FF_OPT_TYPE* renamed to AV_OPT_TYPE_*
 575   - new setting/getting functions with slightly different semantics:
 576         dac66da av_set_string3 -> av_opt_set
 577                 av_set_double  -> av_opt_set_double
 578                 av_set_q       -> av_opt_set_q
 579                 av_set_int     -> av_opt_set_int
 580
 581         41d9d51 av_get_string  -> av_opt_get
 582                 av_get_double  -> av_opt_get_double
 583                 av_get_q       -> av_opt_get_q
 584                 av_get_int     -> av_opt_get_int
 585
 586   - 8c5dcaa trivial rename av_next_option -> av_opt_next
 587   - 641c7af new functions - av_opt_child_next, av_opt_child_class_next
 588     and av_opt_find2()
 589
 590 2011-09-03 - fb4ca26 - lavc 53.10.0
 591                        lavf 53.6.0
 592                        lsws  2.1.0
 593   Add {avcodec,avformat,sws}_get_class().
 594
 595 2011-09-03 - c11fb82 - lavu 51.10.0
 596   Add AV_OPT_SEARCH_FAKE_OBJ flag for av_opt_find() function.
 597
 598 2011-08-26 - lavu 51.9.0
 599   - f2011ed Add av_fifo_peek2(), deprecate av_fifo_peek().
 600   - add41de..abc78a5 Do not include intfloat_readwrite.h,
 601     mathematics.h, rational.h, pixfmt.h, or log.h from avutil.h.
 602
 603 2011-08-16 - 48f9e45 - lavf 53.4.0
 604   Add avformat_query_codec().
 605
 606 2011-08-16 - bca06e7 - lavc 53.8.0
 607   Add avcodec_get_type().
 608
 609 2011-08-06 - 2f63440 - lavf 53.4.0
 610   Add error_recognition to AVFormatContext.
 611
 612 2011-08-02 - 9d39cbf - lavc 53.7.1
 613   Add AV_PKT_FLAG_CORRUPT AVPacket flag.
 614
 615 2011-07-10 - a67c061 - lavf 53.3.0
 616   Add avformat_find_stream_info(), deprecate av_find_stream_info().
 617   NOTE: this was backported to 0.7
 618
 619 2011-07-10 - 0b950fe - lavc 53.6.0
 620   Add avcodec_open2(), deprecate avcodec_open().
 621   NOTE: this was backported to 0.7
 622
 623   Add avcodec_alloc_context3. Deprecate avcodec_alloc_context() and
 624   avcodec_alloc_context2().
 625
 626 2011-06-23 - 67e9ae1 - lavu 51.8.0 - attributes.h
 627   Add av_printf_format().
 628
 629 ------------------------------8<-------------------------------------
 630                    0.7 branch was cut here
 631 ----------------------------->8--------------------------------------
 632
 633 2011-06-16 - 05e84c9, 25de595 - lavf 53.2.0 - avformat.h
 634   Add avformat_open_input and avformat_write_header().
 635   Deprecate av_open_input_stream, av_open_input_file,
 636   AVFormatParameters and av_write_header.
 637
 638 2011-06-16 - 7e83e1c, dc59ec5 - lavu 51.7.0 - opt.h
 639   Add av_opt_set_dict() and av_opt_find().
 640   Deprecate av_find_opt().
 641   Add AV_DICT_APPEND flag.
 642
 643 2011-06-10 - cb7c11c - lavu 51.6.0 - opt.h
 644   Add av_opt_flag_is_set().
 645
 646 2011-06-08 - d9f80ea - lavu 51.5.0 - AVMetadata
 647   Move AVMetadata from lavf to lavu and rename it to
 648   AVDictionary -- new installed header dict.h.
 649   All av_metadata_* functions renamed to av_dict_*.
 650
 651 2011-06-07 - a6703fa - lavu 51.4.0 - av_get_bytes_per_sample()
 652   Add av_get_bytes_per_sample() in libavutil/samplefmt.h.
 653   Deprecate av_get_bits_per_sample_fmt().
 654
 655 2011-06-05 - b39b062 - lavu 51.3.0 - opt.h
 656   Add av_opt_free convenience function.
 657
 658 2011-05-28 - 0420bd7 - lavu 51.2.0 - pixdesc.h
 659   Add av_get_pix_fmt_name() in libavutil/pixdesc.h, and deprecate
 660   avcodec_get_pix_fmt_name() in libavcodec/avcodec.h in its favor.
 661
 662 2011-05-25 - 30315a8 - lavf 53.1.0 - avformat.h
 663   Add fps_probe_size to AVFormatContext.
 664
 665 2011-05-18 - 64150ff - lavc 53.4.0 - AVCodecContext.request_sample_fmt
 666   Add request_sample_fmt field to AVCodecContext.
 667
 668 2011-05-10 - 188dea1 - lavc 53.3.0 - avcodec.h
 669   Deprecate AVLPCType and the following fields in
 670   AVCodecContext: lpc_coeff_precision, prediction_order_method,
 671   min_partition_order, max_partition_order, lpc_type, lpc_passes.
 672   Corresponding FLAC encoder options should be used instead.
 673
 674 2011-04-26 - bebe72f - lavu 51.1.0 - avutil.h
 675   Add AVPictureType enum and av_get_picture_type_char(), deprecate
 676   FF_*_TYPE defines and av_get_pict_type_char() defined in
 677   libavcodec/avcodec.h.
 678
 679 2011-04-26 - 10d3940 - lavfi 2.3.0 - avfilter.h
 680   Add pict_type and key_frame fields to AVFilterBufferRefVideo.
 681
 682 2011-04-26 - 7a11c82 - lavfi 2.2.0 - vsrc_buffer
 683   Add sample_aspect_ratio fields to vsrc_buffer arguments
 684
 685 2011-04-21 - 94f7451 - lavc 53.1.0 - avcodec.h
 686   Add CODEC_CAP_SLICE_THREADS for codecs supporting sliced threading.
 687
 688 2011-04-15 - lavc 52.120.0 - avcodec.h
 689   AVPacket structure got additional members for passing side information:
 690     4de339e introduce side information for AVPacket
 691     2d8591c make containers pass palette change in AVPacket
 692
 693 2011-04-12 - lavf 52.107.0 - avio.h
 694   Avio cleanup, part II - deprecate the entire URLContext API:
 695     175389c add avio_check as a replacement for url_exist
 696     ff1ec0c add avio_pause and avio_seek_time as replacements
 697             for _av_url_read_fseek/fpause
 698     cdc6a87 deprecate av_protocol_next(), avio_enum_protocols
 699             should be used instead.
 700     80c6e23 rename url_set_interrupt_cb->avio_set_interrupt_cb.
 701     f87b1b3 rename open flags: URL_* -> AVIO_*
 702     f8270bb add avio_enum_protocols.
 703     5593f03 deprecate URLProtocol.
 704     c486dad deprecate URLContext.
 705     026e175 deprecate the typedef for URLInterruptCB
 706     8e76a19 deprecate av_register_protocol2.
 707     b840484 deprecate URL_PROTOCOL_FLAG_NESTED_SCHEME
 708     1305d93 deprecate av_url_read_seek
 709     fa104e1 deprecate av_url_read_pause
 710     727c7aa deprecate url_get_filename().
 711     5958df3 deprecate url_max_packet_size().
 712     1869ea0 deprecate url_get_file_handle().
 713     32a97d4 deprecate url_filesize().
 714     e52a914 deprecate url_close().
 715     58a48c6 deprecate url_seek().
 716     925e908 deprecate url_write().
 717     dce3756 deprecate url_read_complete().
 718     bc371ac deprecate url_read().
 719     0589da0 deprecate url_open().
 720     62eaaea deprecate url_connect.
 721     5652bb9 deprecate url_alloc.
 722     333e894 deprecate url_open_protocol
 723     e230705 deprecate url_poll and URLPollEntry
 724
 725 2011-04-10 - lavu  50.40.0 - pixfmt.h
 726   Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
 727
 728 2011-04-08 - lavf 52.106.0 - avformat.h
 729   Minor avformat.h cleanup:
 730     a9bf9d8 deprecate av_guess_image2_codec
 731     c3675df rename avf_sdp_create->av_sdp_create
 732
 733 2011-04-03 - lavf 52.105.0 - avio.h
 734   Large-scale renaming/deprecating of AVIOContext-related functions:
 735     724f6a0 deprecate url_fdopen
 736     403ee83 deprecate url_open_dyn_packet_buf
 737     6dc7d80 rename url_close_dyn_buf       -> avio_close_dyn_buf
 738     b92c545 rename url_open_dyn_buf        -> avio_open_dyn_buf
 739     8978fed introduce an AVIOContext.seekable field as a replacement for
 740             AVIOContext.is_streamed and url_is_streamed()
 741     b64030f deprecate get_checksum()
 742     4c4427a deprecate init_checksum()
 743     4ec153b deprecate udp_set_remote_url/get_local_port
 744     933e90a deprecate av_url_read_fseek/fpause
 745     8d9769a deprecate url_fileno
 746     b7f2fdd rename put_flush_packet -> avio_flush
 747     35f1023 deprecate url_close_buf
 748     83fddae deprecate url_open_buf
 749     d9d86e0 rename url_fprintf -> avio_printf
 750     59f65d9 deprecate url_setbufsize
 751     3e68b3b deprecate url_ferror
 752     66e5b1d deprecate url_feof
 753     e8bb2e2 deprecate url_fget_max_packet_size
 754     76aa876 rename url_fsize -> avio_size
 755     e519753 deprecate url_fgetc
 756     655e45e deprecate url_fgets
 757     a2704c9 rename url_ftell -> avio_tell
 758     e16ead0 deprecate get_strz() in favor of avio_get_str
 759     0300db8,2af07d3 rename url_fskip -> avio_skip
 760     6b4aa5d rename url_fseek -> avio_seek
 761     61840b4 deprecate put_tag
 762     22a3212 rename url_fopen/fclose -> avio_open/close.
 763     0ac8e2b deprecate put_nbyte
 764     77eb550 rename put_byte          -> avio_w8
 765                    put_[b/l]e<type>  -> avio_w[b/l]<type>
 766                    put_buffer        -> avio_write
 767     b7effd4 rename get_byte          -> avio_r8,
 768                    get_[b/l]e<type>  -> avio_r[b/l]<type>
 769                    get_buffer        -> avio_read
 770     b3db9ce deprecate get_partial_buffer
 771     8d9ac96 rename av_alloc_put_byte -> avio_alloc_context
 772
 773 2011-03-25 - 34b47d7 - lavc 52.115.0 - AVCodecContext.audio_service_type
 774   Add audio_service_type field to AVCodecContext.
 775
 776 2011-03-02 - 863c471 - lavf  52.103.0 - av_pkt_dump2, av_pkt_dump_log2
 777   Add new functions av_pkt_dump2, av_pkt_dump_log2 that uses the
 778   source stream timebase for outputting timestamps. Deprecate
 779   av_pkt_dump and av_pkt_dump_log.
 780
 781 2011-02-20 - e731b8d - lavf  52.102.0 - avio.h
 782   * e731b8d - rename init_put_byte() to ffio_init_context(), deprecating the
 783               original, and move it to a private header so it is no longer
 784               part of our public API. Instead, use av_alloc_put_byte().
 785   * ae628ec - rename ByteIOContext to AVIOContext.
 786
 787 2011-02-16 - 09d171b - lavf  52.101.0 - avformat.h
 788                        lavu  52.39.0  - parseutils.h
 789   * 610219a - Add av_ prefix to dump_format().
 790   * f6c7375 - Replace parse_date() in lavf with av_parse_time() in lavu.
 791   * ab0287f - Move find_info_tag from lavf to lavu and add av_prefix to it.
 792
 793 2011-02-15 - lavu 52.38.0 - merge libavcore
 794   libavcore is merged back completely into libavutil
 795
 796 2011-02-10 - 55bad0c - lavc 52.113.0 - vbv_delay
 797   Add vbv_delay field to AVCodecContext
 798
 799 2011-02-14 - 24a83bd - lavf 52.100.0 - AV_DISPOSITION_CLEAN_EFFECTS
 800   Add AV_DISPOSITION_CLEAN_EFFECTS disposition flag.
 801
 802 2011-02-14 - 910b5b8 - lavfi 1.76.0 - AVFilterLink sample_aspect_ratio
 803   Add sample_aspect_ratio field to AVFilterLink.
 804
 805 2011-02-10 - 12c14cd - lavf 52.99.0 - AVStream.disposition
 806   Add AV_DISPOSITION_HEARING_IMPAIRED and AV_DISPOSITION_VISUAL_IMPAIRED.
 807
 808 2011-02-09 - 5592734 - lavc 52.112.0 - avcodec_thread_init()
 809   Deprecate avcodec_thread_init()/avcodec_thread_free() use; instead
 810   set thread_count before calling avcodec_open.
 811
 812 2011-02-09 - 778b08a - lavc 52.111.0 - threading API
 813   Add CODEC_CAP_FRAME_THREADS with new restrictions on get_buffer()/
 814   release_buffer()/draw_horiz_band() callbacks for appropriate codecs.
 815   Add thread_type and active_thread_type fields to AVCodecContext.
 816
 817 2011-02-08 - 3940caa - lavf 52.98.0 - av_probe_input_buffer
 818   Add av_probe_input_buffer() to avformat.h for probing format from a
 819   ByteIOContext.
 820
 821 2011-02-06 - fe174fc - lavf 52.97.0 - avio.h
 822   Add flag for non-blocking protocols: URL_FLAG_NONBLOCK
 823
 824 2011-02-04 - f124b08 - lavf 52.96.0 - avformat_free_context()
 825   Add avformat_free_context() in avformat.h.
 826
 827 2011-02-03 - f5b82f4 - lavc 52.109.0 - add CODEC_ID_PRORES
 828   Add CODEC_ID_PRORES to avcodec.h.
 829
 830 2011-02-03 - fe9a3fb - lavc 52.109.0 - H.264 profile defines
 831   Add defines for H.264 * Constrained Baseline and Intra profiles
 832
 833 2011-02-02 - lavf 52.95.0
 834   * 50196a9 - add a new installed header version.h.
 835   * 4efd5cf, dccbd97, 93b78d1 - add several variants of public
 836     avio_{put,get}_str* functions.  Deprecate corresponding semi-public
 837     {put,get}_str*.
 838
 839 2011-02-02 - dfd2a00 - lavu 50.37.0 - log.h
 840   Make av_dlog public.
 841
 842 2011-01-15 - a242ac3 - lavfi 1.74.0 - AVFilterBufferRefAudioProps
 843   Rename AVFilterBufferRefAudioProps.samples_nb to nb_samples.
 844
 845 2011-01-14 - 7f88a5b - lavf 52.93.0 - av_metadata_copy()
 846   Add av_metadata_copy() in avformat.h.
 847
 848 2011-01-07 - 81c623f - lavc 52.107.0 - deprecate reordered_opaque
 849   Deprecate reordered_opaque in favor of pkt_pts/dts.
 850
 851 2011-01-07 - 1919fea - lavc 52.106.0 - pkt_dts
 852   Add pkt_dts to AVFrame, this will in the future allow multithreading decoders
 853   to not mess up dts.
 854
 855 2011-01-07 - 393cbb9 - lavc 52.105.0 - pkt_pts
 856   Add pkt_pts to AVFrame.
 857
 858 2011-01-07 - 060ec0a - lavc 52.104.0 - av_get_profile_name()
 859   Add av_get_profile_name to libavcodec/avcodec.h.
 860
 861 2010-12-27 - 0ccabee - lavfi 1.71.0 - AV_PERM_NEG_LINESIZES
 862   Add AV_PERM_NEG_LINESIZES in avfilter.h.
 863
 864 2010-12-27 - 9128ae0 - lavf 52.91.0 - av_find_best_stream()
 865   Add av_find_best_stream to libavformat/avformat.h.
 866
 867 2010-12-27 - 107a7e3 - lavf 52.90.0
 868   Add AVFMT_NOSTREAMS flag for formats with no streams,
 869   like e.g. text metadata.
 870
 871 2010-12-22 - 0328b9e - lavu 50.36.0 - file.h
 872   Add functions av_file_map() and av_file_unmap() in file.h.
 873
 874 2010-12-19 - 0bc55f5 - lavu 50.35.0 - error.h
 875   Add "not found" error codes:
 876   AVERROR_DEMUXER_NOT_FOUND
 877   AVERROR_MUXER_NOT_FOUND
 878   AVERROR_DECODER_NOT_FOUND
 879   AVERROR_ENCODER_NOT_FOUND
 880   AVERROR_PROTOCOL_NOT_FOUND
 881   AVERROR_FILTER_NOT_FOUND
 882   AVERROR_BSF_NOT_FOUND
 883   AVERROR_STREAM_NOT_FOUND
 884
 885 2010-12-09 - c61cdd0 - lavcore 0.16.0 - avcore.h
 886   Move AV_NOPTS_VALUE, AV_TIME_BASE, AV_TIME_BASE_Q symbols from
 887   avcodec.h to avcore.h.
 888
 889 2010-12-04 - 16cfc96 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES
 890   Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h.
 891
 892 2010-12-04 - bb4afa1 - lavu 50.34.0 - av_get_pix_fmt_string()
 893   Deprecate avcodec_pix_fmt_string() in favor of
 894   pixdesc.h/av_get_pix_fmt_string().
 895
 896 2010-12-04 - 4da12e3 - lavcore 0.15.0 - av_image_alloc()
 897   Add av_image_alloc() to libavcore/imgutils.h.
 898
 899 2010-12-02 - 037be76 - lavfi 1.67.0 - avfilter_graph_create_filter()
 900   Add function avfilter_graph_create_filter() in avfiltergraph.h.
 901
 902 2010-11-25 - 4723bc2 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays()
 903   Add function avfilter_get_video_buffer_ref_from_arrays() in
 904   avfilter.h.
 905
 906 2010-11-21 - 176a615 - lavcore 0.14.0 - audioconvert.h
 907   Add a public audio channel API in audioconvert.h, and deprecate the
 908   corresponding functions in libavcodec:
 909   avcodec_get_channel_name()
 910   avcodec_get_channel_layout()
 911   avcodec_get_channel_layout_string()
 912   avcodec_channel_layout_num_channels()
 913   and the CH_* macros defined in libavcodec/avcodec.h.
 914
 915 2010-11-21 - 6bfc268 - lavf 52.85.0 - avformat.h
 916   Add av_append_packet().
 917
 918 2010-11-21 - a08d918 - lavc 52.97.0 - avcodec.h
 919   Add av_grow_packet().
 920
 921 2010-11-17 - 0985e1a - lavcore 0.13.0 - parseutils.h
 922   Add av_parse_color() declared in libavcore/parseutils.h.
 923
 924 2010-11-13 - cb2c971 - lavc 52.95.0 - AVCodecContext
 925   Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size
 926   fields.
 927
 928 2010-11-13 - 5aaea02 - lavfi 1.62.0 - avfiltergraph.h
 929   Make avfiltergraph.h public.
 930
 931 2010-11-13 - 4fcbb2a - lavfi 1.61.0 - avfiltergraph.h
 932   Remove declarations from avfiltergraph.h for the functions:
 933   avfilter_graph_check_validity()
 934   avfilter_graph_config_links()
 935   avfilter_graph_config_formats()
 936   which are now internal.
 937   Use avfilter_graph_config() instead.
 938
 939 2010-11-08 - d2af720 - lavu 50.33.0 - eval.h
 940   Deprecate functions:
 941   av_parse_and_eval_expr(),
 942   av_parse_expr(),
 943   av_eval_expr(),
 944   av_free_expr(),
 945   in favor of the functions:
 946   av_expr_parse_and_eval(),
 947   av_expr_parse(),
 948   av_expr_eval(),
 949   av_expr_free().
 950
 951 2010-11-08 - 24de0ed - lavfi 1.59.0 - avfilter_free()
 952   Rename avfilter_destroy() to avfilter_free().
 953   This change breaks libavfilter API/ABI.
 954
 955 2010-11-07 - 1e80a0e - lavfi 1.58.0 - avfiltergraph.h
 956   Remove graphparser.h header, move AVFilterInOut and
 957   avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h.
 958
 959 2010-11-07 - 7313132 - lavfi 1.57.0 - AVFilterInOut
 960   Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx.
 961   This change breaks libavfilter API.
 962
 963 2010-11-04 - 97dd1e4 - lavfi 1.56.0 - avfilter_graph_free()
 964   Rename avfilter_graph_destroy() to avfilter_graph_free().
 965   This change breaks libavfilter API/ABI.
 966
 967 2010-11-04 - e15aeea - lavfi 1.55.0 - avfilter_graph_alloc()
 968   Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h.
 969
 970 2010-11-02 - 6f84cd1 - lavcore 0.12.0 - av_get_bits_per_sample_fmt()
 971   Add av_get_bits_per_sample_fmt() to libavcore/samplefmt.h and
 972   deprecate av_get_bits_per_sample_format().
 973
 974 2010-11-02 - d63e456 - lavcore 0.11.0 - samplefmt.h
 975   Add sample format functions in libavcore/samplefmt.h:
 976   av_get_sample_fmt_name(),
 977   av_get_sample_fmt(),
 978   av_get_sample_fmt_string(),
 979   and deprecate the corresponding libavcodec/audioconvert.h functions:
 980   avcodec_get_sample_fmt_name(),
 981   avcodec_get_sample_fmt(),
 982   avcodec_sample_fmt_string().
 983
 984 2010-11-02 - 262d1c5 - lavcore 0.10.0 - samplefmt.h
 985   Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum
 986   SampleFormat.
 987
 988 2010-10-16 - 2a24df9 - lavfi 1.52.0 - avfilter_graph_config()
 989   Add the function avfilter_graph_config() in avfiltergraph.h.
 990
 991 2010-10-15 - 03700d3 - lavf 52.83.0 - metadata API
 992   Change demuxers to export metadata in generic format and
 993   muxers to accept generic format. Deprecate the public
 994   conversion API.
 995
 996 2010-10-10 - 867ae7a - lavfi 1.49.0 - AVFilterLink.time_base
 997   Add time_base field to AVFilterLink.
 998
 999 2010-09-27 - c85eef4 - lavu 50.31.0 - av_set_options_string()
1000   Move av_set_options_string() from libavfilter/parseutils.h to
1001   libavutil/opt.h.
1002
1003 2010-09-27 - acc0490 - lavfi 1.47.0 - AVFilterLink
1004   Make the AVFilterLink fields srcpad and dstpad store the pointers to
1005   the source and destination pads, rather than their indexes.
1006
1007 2010-09-27 - 372e288 - lavu 50.30.0 - av_get_token()
1008   Move av_get_token() from libavfilter/parseutils.h to
1009   libavutil/avstring.h.
1010
1011 2010-09-26 - 635d4ae - lsws 0.12.0 - swscale.h
1012   Add the functions sws_alloc_context() and sws_init_context().
1013
1014 2010-09-26 - 6ed0404 - lavu 50.29.0 - opt.h
1015   Move libavcodec/opt.h to libavutil/opt.h.
1016
1017 2010-09-24 - 1c1c80f - lavu 50.28.0 - av_log_set_flags()
1018   Default of av_log() changed due to many problems to the old no repeat
1019   detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before
1020   enabling it for your app!.
1021
1022 2010-09-24 - f66eb58 - lavc 52.90.0 - av_opt_show2()
1023   Deprecate av_opt_show() in favor or av_opt_show2().
1024
1025 2010-09-14 - bc6f0af - lavu 50.27.0 - av_popcount()
1026   Add av_popcount() to libavutil/common.h.
1027
1028 2010-09-08 - c6c98d0 - lavu 50.26.0 - av_get_cpu_flags()
1029   Add av_get_cpu_flags().
1030
1031 2010-09-07 - 34017fd - lavcore 0.9.0 - av_image_copy()
1032   Add av_image_copy().
1033
1034 2010-09-07 - 9686abb - lavcore 0.8.0 - av_image_copy_plane()
1035   Add av_image_copy_plane().
1036
1037 2010-09-07 - 9b7269e - lavcore 0.7.0 - imgutils.h
1038   Adopt hierarchical scheme for the imgutils.h function names,
1039   deprecate the old names.
1040
1041 2010-09-04 - 7160bb7 - lavu 50.25.0 - AV_CPU_FLAG_*
1042   Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
1043   of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
1044
1045 2010-08-26 - 5da19b5 - lavc 52.87.0 - avcodec_get_channel_layout()
1046   Add avcodec_get_channel_layout() in audioconvert.h.
1047
1048 2010-08-20 - e344336 - lavcore 0.6.0 - av_fill_image_max_pixsteps()
1049   Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().
1050
1051 2010-08-18 - a6ddf8b - lavcore 0.5.0 - av_fill_image_max_pixstep()
1052   Add av_fill_image_max_pixstep() in imgutils.h.
1053
1054 2010-08-17 - 4f2d2e4 - lavu 50.24.0 - AV_NE()
1055   Add the AV_NE macro.
1056
1057 2010-08-17 - ad2c950 - lavfi 1.36.0 - audio framework
1058   Implement AVFilterBufferRefAudioProps struct for audio properties,
1059   get_audio_buffer(), filter_samples() functions and related changes.
1060
1061 2010-08-12 - 81c1eca - lavcore 0.4.0 - av_get_image_linesize()
1062   Add av_get_image_linesize() in imgutils.h.
1063
1064 2010-08-11 - c1db7bf - lavfi 1.34.0 - AVFilterBufferRef
1065   Resize data and linesize arrays in AVFilterBufferRef to 8.
1066
1067   This change breaks libavfilter API/ABI.
1068
1069 2010-08-11 - 9f08d80 - lavc 52.85.0 - av_picture_data_copy()
1070   Add av_picture_data_copy in avcodec.h.
1071
1072 2010-08-11 - 84c0386 - lavfi 1.33.0 - avfilter_open()
1073   Change avfilter_open() signature:
1074   AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
1075   int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
1076
1077   This change breaks libavfilter API/ABI.
1078
1079 2010-08-11 - cc80caf - lavfi 1.32.0 - AVFilterBufferRef
1080   Add a type field to AVFilterBufferRef, and move video specific
1081   properties to AVFilterBufferRefVideoProps.
1082
1083   This change breaks libavfilter API/ABI.
1084
1085 2010-08-07 - 5d4890d - lavfi 1.31.0 - AVFilterLink
1086   Rename AVFilterLink fields:
1087   AVFilterLink.srcpic    ->  AVFilterLink.src_buf
1088   AVFilterLink.cur_pic   ->  AVFilterLink.cur_buf
1089   AVFilterLink.outpic    ->  AVFilterLink.out_buf
1090
1091 2010-08-07 - 7fce481 - lavfi 1.30.0
1092   Rename functions and fields:
1093   avfilter_(un)ref_pic       -> avfilter_(un)ref_buffer
1094   avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
1095   AVFilterBufferRef.pic      -> AVFilterBufferRef.buffer
1096
1097 2010-08-07 - ecc8dad - lavfi 1.29.0 - AVFilterBufferRef
1098   Rename AVFilterPicRef to AVFilterBufferRef.
1099
1100 2010-08-07 - d54e094 - lavfi 1.28.0 - AVFilterBuffer
1101   Move format field from AVFilterBuffer to AVFilterPicRef.
1102
1103 2010-08-06 - bf176f5 - lavcore 0.3.0 - av_check_image_size()
1104   Deprecate avcodec_check_dimensions() in favor of the function
1105   av_check_image_size() defined in libavcore/imgutils.h.
1106
1107 2010-07-30 - 56b5e9d - lavfi 1.27.0 - AVFilterBuffer
1108   Increase size of the arrays AVFilterBuffer.data and
1109   AVFilterBuffer.linesize from 4 to 8.
1110
1111   This change breaks libavfilter ABI.
1112
1113 2010-07-29 - e7bd48a - lavcore 0.2.0 - imgutils.h
1114   Add functions av_fill_image_linesizes() and
1115   av_fill_image_pointers(), declared in libavcore/imgutils.h.
1116
1117 2010-07-27 - 126b638 - lavcore 0.1.0 - parseutils.h
1118   Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()
1119   defined in libavcodec in favor of the newly added functions
1120   av_parse_video_size() and av_parse_video_rate() declared in
1121   libavcore/parseutils.h.
1122
1123 2010-07-23 - 4485247 - lavu 50.23.0 - mathematics.h
1124   Add the M_PHI constant definition.
1125
1126 2010-07-22 - bdab614 - lavfi 1.26.0 - media format generalization
1127   Add a type field to AVFilterLink.
1128
1129   Change the field types:
1130   enum PixelFormat format   -> int format   in AVFilterBuffer
1131   enum PixelFormat *formats -> int *formats in AVFilterFormats
1132   enum PixelFormat *format  -> int format   in AVFilterLink
1133
1134   Change the function signatures:
1135   AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
1136   AVFilterFormats *avfilter_make_format_list(const int *fmts);
1137
1138   int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
1139   int avfilter_add_format    (AVFilterFormats **avff, int fmt);
1140
1141   AVFilterFormats *avfilter_all_colorspaces(void); ->
1142   AVFilterFormats *avfilter_all_formats    (enum AVMediaType type);
1143
1144   This change breaks libavfilter API/ABI.
1145
1146 2010-07-21 - aac6ca6 - lavcore 0.0.0
1147   Add libavcore.
1148
1149 2010-07-17 - b5c582f - lavfi 1.25.0 - AVFilterBuffer
1150   Remove w and h fields from AVFilterBuffer.
1151
1152 2010-07-17 - f0d77b2 - lavfi 1.24.0 - AVFilterBuffer
1153   Rename AVFilterPic to AVFilterBuffer.
1154
1155 2010-07-17 - 57fe80f - lavf 52.74.0 - url_fskip()
1156   Make url_fskip() return an int error code instead of void.
1157
1158 2010-07-11 - 23940f1 - lavc 52.83.0
1159   Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.
1160   Add AVLPCType enum.
1161   Deprecate AVCodecContext.use_lpc.
1162
1163 2010-07-11 - e1d7c88 - lavc 52.82.0 - avsubtitle_free()
1164   Add a function for free the contents of a AVSubtitle generated by
1165   avcodec_decode_subtitle.
1166
1167 2010-07-11 - b91d08f - lavu 50.22.0 - bswap.h and intreadwrite.h
1168   Make the bswap.h and intreadwrite.h API public.
1169
1170 2010-07-08 - ce1cd1c - lavu 50.21.0 - pixdesc.h
1171   Rename read/write_line() to av_read/write_image_line().
1172
1173 2010-07-07 - 4d508e4 - lavfi 1.21.0 - avfilter_copy_picref_props()
1174   Add avfilter_copy_picref_props().
1175
1176 2010-07-03 - 2d525ef - lavc 52.79.0
1177   Add FF_COMPLIANCE_UNOFFICIAL and change all instances of
1178   FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.
1179
1180 2010-07-02 - 89eec74 - lavu 50.20.0 - lfg.h
1181   Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through
1182   lfg.h.
1183
1184 2010-06-28 - a52e2c3 - lavfi 1.20.1 - av_parse_color()
1185   Extend av_parse_color() syntax, make it accept an alpha value specifier and
1186   set the alpha value to 255 by default.
1187
1188 2010-06-22 - 735cf6b - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class
1189   Add priv_data_size and priv_data_class to URLProtocol.
1190
1191 2010-06-22 - ffbb289 - lavf 52.70.0 - url_alloc(), url_connect()
1192   Add url_alloc() and url_connect().
1193
1194 2010-06-22 - 9b07a2d - lavf 52.69.0 - av_register_protocol2()
1195   Add av_register_protocol2(), deprecating av_register_protocol().
1196
1197 2010-06-09 - 65db058 - lavu 50.19.0 - av_compare_mod()
1198   Add av_compare_mod() to libavutil/mathematics.h.
1199
1200 2010-06-05 - 0b99215 - lavu 50.18.0 - eval API
1201   Make the eval API public.
1202
1203 2010-06-04 - 31878fc - lavu 50.17.0 - AV_BASE64_SIZE
1204   Add AV_BASE64_SIZE() macro.
1205
1206 2010-06-02 - 7e566bb - lavc 52.73.0 - av_get_codec_tag_string()
1207   Add av_get_codec_tag_string().
1208
1209 2010-06-01 - 2b99142 - lsws 0.11.0 - convertPalette API
1210   Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
1211
1212 2010-05-26 - 93ebfee - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
1213   Add CODEC_CAP_EXPERIMENTAL flag.
1214   NOTE: this was backported to 0.6
1215
1216 2010-05-23 - 9977863 - lavu 50.16.0 - av_get_random_seed()
1217   Add av_get_random_seed().
1218
1219 2010-05-18 - 796ac23 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
1220   Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.
1221   NOTE: this was backported to 0.6
1222
1223 2010-05-09 - b6bc205 - lavfi 1.20.0 - AVFilterPicRef
1224   Add interlaced and top_field_first fields to AVFilterPicRef.
1225
1226 ------------------------------8<-------------------------------------
1227                    0.6 branch was cut here
1228 ----------------------------->8--------------------------------------
1229
1230 2010-05-01 - 8e2ee18 - lavf 52.62.0 - probe function
1231   Add av_probe_input_format2 to API, it allows ignoring probe
1232   results below given score and returns the actual probe score.
1233
1234 2010-04-01 - 3dd6180 - lavf 52.61.0 - metadata API
1235   Add a flag for av_metadata_set2() to disable overwriting of
1236   existing tags.
1237
1238 2010-04-01 - 0fb49b5 - lavc 52.66.0
1239   Add avcodec_get_edge_width().
1240
1241 2010-03-31 - d103218 - lavc 52.65.0
1242   Add avcodec_copy_context().
1243
1244 2010-03-31 - 1a70d12 - lavf 52.60.0 - av_match_ext()
1245   Make av_match_ext() public.
1246
1247 2010-03-31 - 1149150 - lavu 50.14.0 - AVMediaType
1248   Move AVMediaType enum from libavcodec to libavutil.
1249
1250 2010-03-31 - 72415b2 - lavc 52.64.0 - AVMediaType
1251   Define AVMediaType enum, and use it instead of enum CodecType, which
1252   is deprecated and will be dropped at the next major bump.
1253
1254 2010-03-25 - 8795823 - lavu 50.13.0 - av_strerror()
1255   Implement av_strerror().
1256
1257 2010-03-23 - e1484eb - lavc 52.60.0 - av_dct_init()
1258   Support DCT-I and DST-I.
1259
1260 2010-03-15 - b8819c8 - lavf 52.56.0 - AVFormatContext.start_time_realtime
1261   Add AVFormatContext.start_time_realtime field.
1262
1263 2010-03-13 - 5bb5c1d - lavfi 1.18.0 - AVFilterPicRef.pos
1264   Add AVFilterPicRef.pos field.
1265
1266 2010-03-13 - 60c144f - lavu 50.12.0 - error.h
1267   Move error code definitions from libavcodec/avcodec.h to
1268   the new public header libavutil/error.h.
1269
1270 2010-03-07 - c709483 - lavc 52.56.0 - avfft.h
1271   Add public FFT interface.
1272
1273 2010-03-06 - ac6ef86 - lavu 50.11.0 - av_stristr()
1274   Add av_stristr().
1275
1276 2010-03-03 - 4b83fc0 - lavu 50.10.0 - av_tree_enumerate()
1277   Add av_tree_enumerate().
1278
1279 2010-02-07 - b687c1a - lavu 50.9.0 - av_compare_ts()
1280   Add av_compare_ts().
1281
1282 2010-02-05 - 3f3dc76 - lsws 0.10.0 - sws_getCoefficients()
1283   Add sws_getCoefficients().
1284
1285 2010-02-01 - ca76a11 - lavf 52.50.0 - metadata API
1286   Add a list of generic tag names, change 'author' -> 'artist',
1287   'year' -> 'date'.
1288
1289 2010-01-30 - 80a07f6 - lavu 50.8.0 - av_get_pix_fmt()
1290   Add av_get_pix_fmt().
1291
1292 2010-01-21 - 01cc47d - lsws 0.9.0 - sws_scale()
1293   Change constness attributes of sws_scale() parameters.
1294
1295 2010-01-10 - 3fb8e77 - lavfi 1.15.0 - avfilter_graph_config_links()
1296   Add a log_ctx parameter to avfilter_graph_config_links().
1297
1298 2010-01-07 - 8e9767f - lsws 0.8.0 - sws_isSupported{In,Out}put()
1299   Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
1300
1301 2010-01-06 - c1d662f - lavfi 1.14.0 - avfilter_add_colorspace()
1302   Change the avfilter_add_colorspace() signature, make it accept an
1303   (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
1304
1305 2010-01-03 - 4fd1f18 - lavfi 1.13.0 - avfilter_add_colorspace()
1306   Add avfilter_add_colorspace().
1307
1308 2010-01-02 - 8eb631f - lavf 52.46.0 - av_match_ext()
1309   Add av_match_ext(), it should be used in place of match_ext().
1310
1311 2010-01-01 - a1f547b - lavf 52.45.0 - av_guess_format()
1312   Add av_guess_format(), it should be used in place of guess_format().
1313
1314 2009-12-13 - a181981 - lavf 52.43.0 - metadata API
1315   Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and
1316   AV_METADATA_DONT_STRDUP_VAL.
1317
1318 2009-12-13 - 277c733 - lavu 50.7.0 - avstring.h API
1319   Add av_d2str().
1320
1321 2009-12-13 - 02b398e - lavc 52.42.0 - AVStream
1322   Add avg_frame_rate.
1323
1324 2009-12-12 - 3ba69a1 - lavu 50.6.0 - av_bmg_next()
1325   Introduce the av_bmg_next() function.
1326
1327 2009-12-05 - a13a543 - lavfi 1.12.0 - avfilter_draw_slice()
1328   Add a slice_dir parameter to avfilter_draw_slice().
1329
1330 2009-11-26 - 4cc3f6a - lavfi 1.11.0 - AVFilter
1331   Remove the next field from AVFilter, this is not anymore required.
1332
1333 2009-11-25 - 1433c4a - lavfi 1.10.0 - avfilter_next()
1334   Introduce the avfilter_next() function.
1335
1336 2009-11-25 - 86a60fa - lavfi 1.9.0 - avfilter_register()
1337   Change the signature of avfilter_register() to make it return an
1338   int. This is required since now the registration operation may fail.
1339
1340 2009-11-25 - 74a0059 - lavu 50.5.0 - pixdesc.h API
1341   Make the pixdesc.h API public.
1342
1343 2009-10-27 - 243110f - lavfi 1.5.0 - AVFilter.next
1344   Add a next field to AVFilter, this is used for simplifying the
1345   registration and management of the registered filters.
1346
1347 2009-10-23 - cccd292 - lavfi 1.4.1 - AVFilter.description
1348   Add a description field to AVFilter.
1349
1350 2009-10-19 - 6b5dc05 - lavfi 1.3.0 - avfilter_make_format_list()
1351   Change the interface of avfilter_make_format_list() from
1352   avfilter_make_format_list(int n, ...) to
1353   avfilter_make_format_list(enum PixelFormat *pix_fmts).
1354
1355 2009-10-18 - 0eb4ff9 - lavfi 1.0.0 - avfilter_get_video_buffer()
1356   Make avfilter_get_video_buffer() recursive and add the w and h
1357   parameters to it.
1358
1359 2009-10-07 - 46c40e4 - lavfi 0.5.1 - AVFilterPic
1360   Add w and h fields to AVFilterPic.
1361
1362 2009-06-22 - 92400be - lavf 52.34.1 - AVFormatContext.packet_size
1363   This is now an unsigned int instead of a signed int.
1364
1365 2009-06-19 - a4276ba - lavc 52.32.0 - AVSubtitle.pts
1366   Add a pts field to AVSubtitle which gives the subtitle packet pts
1367   in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
1368   not work right without this.
1369
1370 2009-06-03 - 8f3f2e0 - lavc 52.30.2 - AV_PKT_FLAG_KEY
1371   PKT_FLAG_KEY has been deprecated and will be dropped at the next
1372   major version. Use AV_PKT_FLAG_KEY instead.
1373
1374 2009-06-01 - f988ce6 - lavc 52.30.0 - av_lockmgr_register()
1375   av_lockmgr_register() can be used to register a callback function
1376   that lavc (and in the future, libraries that depend on lavc) can use
1377   to implement mutexes. The application should provide a callback function
1378   that implements the AV_LOCK_* operations described in avcodec.h.
1379   When the lock manager is registered, FFmpeg is guaranteed to behave
1380   correctly in a multi-threaded application.
1381
1382 2009-04-30 - ce1d9c8 - lavc 52.28.0 - av_free_packet()
1383   av_free_packet() is no longer an inline function. It is now exported.
1384
1385 2009-04-11 - 80d403f - lavc 52.25.0 - deprecate av_destruct_packet_nofree()
1386   Please use NULL instead. This has been supported since r16506
1387   (lavf > 52.23.1, lavc > 52.10.0).
1388
1389 2009-04-07 - 7a00bba - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
1390   The old decoding functions are deprecated, all new code should use the
1391   new functions avcodec_decode_video2(), avcodec_decode_audio3() and
1392   avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
1393   argument instead of a const uint8_t *buf / int buf_size pair.
1394
1395 2009-04-03 - 7b09db3 - lavu 50.3.0 - av_fifo_space()
1396   Introduce the av_fifo_space() function.
1397
1398 2009-04-02 - fabd246 - lavc 52.23.0 - AVPacket
1399   Move AVPacket declaration from libavformat/avformat.h to
1400   libavcodec/avcodec.h.
1401
1402 2009-03-22 - 6e08ca9 - lavu 50.2.0 - RGB32 pixel formats
1403   Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
1404   PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
1405   Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
1406   PIX_FMT_BGR32_1 are now macros.
1407   avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
1408   Re-sort the enum PixelFormat list accordingly.
1409   This change breaks API/ABI backward compatibility.
1410
1411 2009-03-22 - f82674e - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
1412   Add the enum PixelFormat values:
1413   PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
1414   PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
1415
1416 2009-03-21 - ee6624e - lavu 50.0.0  - av_random*
1417   The Mersenne Twister PRNG implemented through the av_random* functions
1418   was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
1419   instead.
1420
1421 2009-03-08 - 41dd680 - lavu 50.0.0  - AVFifoBuffer
1422   av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
1423   and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
1424   and av_fifo_realloc2.
1425   In addition, the order of the function arguments of av_fifo_generic_read
1426   was changed to match av_fifo_generic_write.
1427   The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
1428   applications, they may not use sizeof() or directly access members.
1429
1430 2009-03-01 - ec26457 - lavf 52.31.0 - Generic metadata API
1431   Introduce a new metadata API (see av_metadata_get() and friends).
1432   The old API is now deprecated and should not be used anymore. This especially
1433   includes the following structure fields:
1434     - AVFormatContext.title
1435     - AVFormatContext.author
1436     - AVFormatContext.copyright
1437     - AVFormatContext.comment
1438     - AVFormatContext.album
1439     - AVFormatContext.year
1440     - AVFormatContext.track
1441     - AVFormatContext.genre
1442     - AVStream.language
1443     - AVStream.filename
1444     - AVProgram.provider_name
1445     - AVProgram.name
1446     - AVChapter.title