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:    2017-03-23
   6 libavdevice:   2017-03-23
   7 libavfilter:   2017-03-23
   8 libavformat:   2017-03-23
   9 libavresample: 2017-03-23
  10 libswscale:    2017-03-23
  11 libavutil:     2017-03-23
  12
  13
  14 API changes, most recent first:
  15
  16 2017-04-26 - xxxxxxx - lavc 58.3.1 - avcodec.h
  17   Add AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH.
  18
  19 2017-03-xx - xxxxxxx - lavc 57.37.0 - avcodec.h
  20   Add AVCodecContext.hwaccel_flags field. This will control some hwaccels at
  21   a later point.
  22
  23 2017-03-xx - xxxxxxx - lavu 55.35.0 - hwcontext.h
  24   Add AV_HWDEVICE_TYPE_NONE, av_hwdevice_find_type_by_name(),
  25   av_hwdevice_get_type_name() and av_hwdevice_iterate_types().
  26
  27 2017-03-xx - xxxxxxx - lavu 55.34.0 - hwcontext.h
  28   Add av_hwdevice_ctx_create_derived().
  29
  30 2017-02-10 - xxxxxxx - lavu 55.33.0 - spherical.h
  31   Add AV_SPHERICAL_EQUIRECTANGULAR_TILE, av_spherical_tile_bounds(),
  32   and projection-specific properties (bound_left, bound_top, bound_right,
  33   bound_bottom, padding) to AVSphericalMapping.
  34
  35 2017-xx-xx - xxxxxxx - lavc 57.34.0 - avcodec.h
  36   Add AVCodecContext.hw_device_ctx.
  37
  38 2017-02-11 - xxxxxxx - lavu 55.32.0 - frame.h
  39   Add AVFrame.opaque_ref.
  40
  41 2017-02-xx - xxxxxxx - lavu 55.31.1 - frame.h
  42   Allow passing the value of 0 (meaning "automatic") as the required alignment
  43   to av_frame_get_buffer().
  44
  45 2017-02-xx - xxxxxxx - lavu 55.31.0 - cpu.h
  46   Add av_cpu_max_align() for querying maximum required data alignment.
  47
  48 2016-xx-xx - xxxxxxx - lavf 57.11.0 - avio.h
  49   Add avio_context_free(). From now on it must be used for freeing AVIOContext.
  50
  51 2017-02-01 - xxxxxxx - lavc - avcodec.h
  52   Deprecate AVCodecContext.refcounted_frames. This was useful for deprecated
  53   API only (avcodec_decode_video2/avcodec_decode_audio4). The new decode APIs
  54   (avcodec_send_packet/avcodec_receive_frame) always work with reference
  55   counted frames.
  56
  57 2016-xx-xx - xxxxxxx - lavc 57.31.0 - avcodec.h
  58   Add AVCodecContext.apply_cropping to control whether cropping
  59   is handled by libavcodec or the caller.
  60
  61 2016-xx-xx - xxxxxxx - lavu 55.30.0 - frame.h
  62   Add AVFrame.crop_left/right/top/bottom fields for attaching cropping
  63   information to video frames.
  64
  65 2016-xx-xx - xxxxxxx
  66   Change av_sha_update() and av_md5_sum()/av_md5_update() length
  67   parameter type to size_t at next major bump.
  68
  69 2016-xx-xx - xxxxxxx - lavc 57.29.0 - avcodec.h
  70   Add AV_PKT_DATA_SPHERICAL packet side data to export AVSphericalMapping
  71   information from containers.
  72
  73 2016-xx-xx - xxxxxxx - lavu 55.30.0 - spherical.h
  74   Add AV_FRAME_DATA_SPHERICAL value, av_spherical_alloc() API and
  75   AVSphericalMapping type to export and describe spherical video properties.
  76
  77 2016-xx-xx - xxxxxxx - lavf 57.10.0 - avformat.h
  78   Add av_stream_add_side_data().
  79
  80 2016-xx-xx - xxxxxxx - lavu 55.28.0 - pixfmt.h
  81   Add AV_PIX_FMT_GRAY12(LE/BE).
  82
  83 2016-xx-xx - xxxxxxx - lavu 55.27.0 - hwcontext.h
  84   Add av_hwframe_map() and associated AV_HWFRAME_MAP_* flags.
  85   Add av_hwframe_ctx_create_derived().
  86
  87 2016-xx-xx - xxxxxxx - lavu 55.25.0 - pixfmt.h
  88   Add AV_PIX_FMT_GBRAP12(LE/BE).
  89
  90 2016-xx-xx - xxxxxxx - lavu 55.24.0 - pixfmt.h
  91   Add AV_PIX_FMT_GBRP12(LE/BE).
  92
  93 2016-xx-xx - xxxxxxx - lavu 55.23.0 - hwcontext_vaapi.h
  94   Add AV_VAAPI_DRIVER_QUIRK_ATTRIB_MEMTYPE.
  95
  96 2016-xx-xx - xxxxxxx - lavf 57.08.0 - avio.h
  97   Add AVIO_SEEKABLE_TIME flag.
  98
  99 2016-xx-xx - xxxxxxx - lavu 55.22.0 - pixfmt.h
 100   Add AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, and AV_PIX_FMT_YUV444P12.
 101
 102 2016-xx-xx - xxxxxxx - lavc 57.27.0 - avcodec.h
 103   Add FF_PROFILE_HEVC_REXT, the extended pixel format profile for HEVC.
 104
 105 2016-08-24 - xxxxxxx - lavu 55.21.0 - imgutils.h
 106   Add av_image_copy_uc_from(), a version of av_image_copy() for copying
 107   from GPU mapped memory.
 108
 109 2016-xx-xx - xxxxxxx - lavc 59.26.0 - vaapi.h
 110   Deprecate struct vaapi_context and the vaapi.h installed header.
 111   Callers should set AVCodecContext.hw_frames_ctx instead.
 112
 113 ------------------------------8<-------------------------------------
 114                    12 branch was cut here
 115 ----------------------------->8--------------------------------------
 116
 117 2016-07-20 - xxxxxxx - lavu 55.20.0 - cpu.h
 118   Add AV_CPU_FLAG_SSSE3SLOW.
 119
 120 2016-07-02 - 4926fa9 - lavu 55.19.0 - hwcontext_vaapi.h
 121   Add driver quirks field to VAAPI-specific hwdevice and enum with
 122   members AV_VAAPI_DRIVER_QUIRK_* to represent its values.
 123
 124 2016-07-02 - b7c5f88 - lavu 55.18.0 - pixfmt.h
 125   Add AV_PIX_FMT_P010(LE/BE).
 126
 127 2016-06-21 - 32c8359 - lavc 57.24.0 - avcodec.h
 128   Decoders now export the frame timestamp as AVFrame.pts. It was
 129   previously exported as AVFrame.pkt_pts, which is now deprecated.
 130
 131 2016-06-21 - 59e7361 - lavu 55.16.0 - hwcontext.h hwcontext_qsv.h
 132   Add AV_HWDEVICE_TYPE_QSV and a new installed header with QSV-specific
 133   hwcontext definitions.
 134
 135 2016-06-21 - e85f6f7 - lavc 57.23.0 - avcodec.h
 136   AVCodecContext.hw_frames_ctx now may be used by decoders.
 137
 138 2016-06-12 - 90f469a - lavc 57.20.0 - avcodec.h
 139   Add FF_PROFILE_H264_MULTIVIEW_HIGH and FF_PROFILE_H264_STEREO_HIGH.
 140
 141 2016-05-26 - 1c9e861 - lavu 55.13.0 - hwcontext.h
 142   Add av_hwdevice_ctx_create().
 143
 144 2016-05-24 - ad61da05 - lavc 57.19.1 - avcodec.h
 145   Adjust values for JPEG 2000 profiles.
 146
 147 2016-05-18 - db7968b - lavf 57.7.0 - avio.h
 148   Add AVIODataMarkerType, write_data_type, ignore_boundary_point and
 149   avio_write_marker.
 150
 151 2016-05-17 - 0c4468d - lavu 55.12.0 - opt.h
 152   Add av_stereo3d_type_name() and av_stereo3d_from_name().
 153
 154 2016-05-17 - c46db38 - lavu 55.11.0 - hwcontext_dxva2.h
 155   Add new installed header with DXVA2-specific hwcontext definitions.
 156
 157 2016-03-24 - 564b459 - lavu 55.10.0 - opt.h
 158   Add av_opt_copy().
 159
 160 2016-03-23 - 05f6670 - lavc 57.16.0 - avcodec.h
 161   Add a new audio/video encoding and decoding API with decoupled input
 162   and output -- avcodec_send_packet(), avcodec_receive_frame(),
 163   avcodec_send_frame() and avcodec_receive_packet().
 164
 165 2016-03-20 - 33d1898 - lavc 57.15.0 - avcodec.h
 166   Add a new bitstream filtering API working with AVPackets.
 167   Deprecate the old bitstream filtering API.
 168
 169 2016-03-19 - 07a844f - lavfi 6.3.0 - avfilter.h
 170   Add AVFilterContext.hw_device_ctx.
 171
 172 2016-03-19 - 551c677 - lavu 55.9.0 - hwcontext_vaapi.h
 173   Add new installed header with VAAPI-specific hwcontext definitions.
 174
 175 2016-03-19 - d264c72 - lavu 55.8.0 - pixfmt.h
 176   Deprecate all AV_PIX_FMT_VAAPI_* formats.
 177   Replaced by AV_PIX_FMT_VAAPI.
 178
 179 2016-03-19 - b1f01e8 - lavu 55.7.0 - hwcontext.h
 180   Add AVHWFramesConstraints and associated API.
 181
 182 2016-02-23 - 9200514 - lavf 57.5.0 - avformat.h
 183   Add AVStream.codecpar, deprecate AVStream.codec.
 184
 185 2016-02-23 - lavc 57.14.0 - avcodec.h
 186   998e1b8 - Add AVCodecParameters and its related API.
 187   a806834 - Add av_get_audio_frame_duration2().
 188
 189 2016-02-22 - ec4c483 - lavf 57.4.0 - avformat.h
 190   Add AVFormatContext.protocol_whitelist and protocol_blacklist.
 191   Add 'protocol_whitelist' and 'protocol_blacklist' private options for
 192   avio_open2().
 193
 194 2016-02-14 - 7b3214d0 - lavc 57.13.0 - avcodec.h
 195   Add AVCodecContext.hw_frames_ctx.
 196
 197 2016-02-14 - lavfi 6.2.0 - avfilter.h
 198   b3dd30d avfilter.h - Add AVFilterLink.hw_frames_ctx.
 199           buffersrc.h - Add AVBufferSrcParameters and functions for handling it.
 200
 201 2016-02-14 - lavu 55.6.0
 202   721a4ef buffer.h - Add av_buffer_pool_init2().
 203   89923e4 hwcontext.h - Add a new installed header hwcontext.h with a new API
 204                         for handling hwaccel frames.
 205   ad884d1 hwcontext_cuda.h - Add a new installed header hwcontext_cuda.h with
 206                              CUDA-specific hwcontext definitions.
 207   a001ce3 hwcontext_vdpau.h - Add a new installed header hwcontext_vdpau.h with
 208                               VDPAU-specific hwcontext definitions.
 209   7bc780c pixfmt.h - Add AV_PIX_FMT_CUDA.
 210
 211 2016-01-24 - 9f61abc - lavf 57.3.0 - avformat.h
 212   Add AVFormatContext.opaque, io_open and io_close, allowing custom IO
 213   for muxers and demuxers that open additional files.
 214
 215 2015-12-12 - 2c68113 - lavc 57.12.0 - avcodec.h
 216   Add AVCodecDescriptor.profiles and avcodec_profile_name().
 217
 218 2015-12-06 - lavc 57.11.0 - avcodec.h dirac.h
 219   31c51f7 - Add av_packet_add_side_data().
 220   84adab3 - Add AVCodecContext.coded_side_data.
 221   f0b769c - Add AVCPBProperties API.
 222   e02de9d - Add a new public header dirac.h containing
 223             av_dirac_parse_sequence_header()
 224
 225 2015-11-20 - 462a54e - lavc 57.9.1 - avcodec.h
 226   Deprecate rtp_callback without replacement, i.e. it won't be possible to
 227   get image slices before the full frame is encoded any more. The libavformat
 228   rtpenc muxer can still be used for RFC-2190 packetization.
 229
 230 2015-11-18 - 79ae1e6 - lavc 57.9.0 - avcodec.h
 231   Add AV_PKT_DATA_FALLBACK_TRACK for making fallback associations between
 232   streams.
 233
 234 2015-11-18 - 7f4ec43 - lavf 57.1.0 - avformat.h
 235   Add av_stream_new_side_data().
 236
 237 2015-11-13 - 92d107a - lavu 55.3.0 - xtea.h
 238     Add av_xtea_le_init and av_xtea_le_crypt
 239
 240 2015-11-09 - 48ff668 - lavfi 6.1.0 - avfilter.h
 241     Add a frame_rate field to AVFilterLink
 242
 243 2015-10-26 - lavc 57.7.0 - avcodec.h
 244   ce70f28 - Deprecate av_free_packet(). Use av_packet_unref() as replacement,
 245             it resets the packet in a more consistent way.
 246   9b56d5c - Deprecate av_dup_packet(), it is a no-op for most cases.
 247             Use av_packet_ref() to make a non-refcounted AVPacket refcounted.
 248   a9a6010 - Add av_packet_alloc(), av_packet_clone(), av_packet_free().
 249             They match the AVFrame functions with the same name.
 250
 251 2015-10-21 - a17a766 - lavc 57.5.0 - avcodec.h
 252   Add data and linesize array to AVSubtitleRect, to be used instead of
 253   the ones from the embedded AVPicture.
 254
 255 2015-10-16 - dc923bc - lavc 57.0.0 - qsv.h
 256   Add an API for allocating opaque surfaces.
 257
 258 2015-10-12 - 11c5f43 - lavu 55.2.0 - dict.h
 259   Change return type of av_dict_copy() from void to int, so that a proper
 260   error code can be reported.
 261
 262 2015-09-29 - 948f3c1 - lavc 57.0.0 - avcodec.h
 263   Change type of AVPacket.duration from int to int64_t.
 264
 265 2015-09-18 - e3d4784 - lavc 57.2.0 - d3d11va.h
 266   Add av_d3d11va_alloc_context(). This function must from now on be used for
 267   allocating AVD3D11VAContext.
 268
 269 2015-09-07 - lavu 55.0.0
 270   b8b5d82 - Change type of AVPixFmtDescriptor.flags from uint8_t to uint64_t.
 271   6b3ef7f - Change type of AVComponentDescriptor fields from uint16_t to int
 272             and drop bit packing.
 273   2268db2 - Add step, offset, and depth to AVComponentDescriptor to replace
 274             the deprecated step_minus1, offset_plus1, and depth_minus1.
 275
 276 2015-07-31 - lavu 54.17.0
 277   7a7df34 - Add av_blowfish_alloc().
 278   ae36545 - Add av_rc4_alloc().
 279   5d8bea3 - Add av_xtea_alloc().
 280   d9e8b47 - Add av_des_alloc().
 281
 282 2015-07-29 - 7e38340 - lavu 54.16.0 - hmac.h
 283   Add AV_HMAC_SHA224 and AV_HMAC_SHA256.
 284
 285 2015-07-27 - lavc 56.35.0 - avcodec.h
 286   7c6eb0a - Rename CODEC_FLAG* defines to AV_CODEC_FLAG*.
 287   def9785 - Rename CODEC_CAP_* defines to AV_CODEC_CAP_*.
 288   059a934 - Rename FF_INPUT_BUFFER_PADDING_SIZE and FF_MIN_BUFFER_SIZE
 289             to AV_INPUT_BUFFER_PADDING_SIZE and AV_INPUT_BUFFER_MIN_SIZE.
 290
 291 2015-07-20 - 5d3addb - lavc 56.33.0 - avcodec.h
 292   Add AV_PKT_DATA_QUALITY_FACTOR to export the quality value of an AVPacket.
 293
 294 2015-07-02 - 1316df7 - lavu 56.15.0
 295   Add av_version_info().
 296
 297 2015-07-01 - 0d449c8 - lavfi 5.1.0 - version.h
 298              0f87f9b - lavd 55.2.0 - version.h
 299   Add library identification symbols, LIBAVFILTER_IDENT and LIBAVDEVICE_IDENT.
 300
 301 2015-06-07 - 252d620 - lavf 56.20.0 - avio.h
 302   Add avio_put_str16be.
 303
 304 2015-05-13 - f7cafb5 - lavu 54.14.0 - cpu.h
 305   Add AV_CPU_FLAG_AVXSLOW.
 306
 307 2015-05-13 - e7c5e17 - lavc 56.23.0
 308   Add av_vda_default_init2.
 309
 310 2015-04-19 - c253340 - lavu 54.12.0
 311   Add AV_LOG_TRACE for extremely verbose debugging.
 312
 313 2015-04-07 - 27f2746 - lavu 54.11.0
 314   Add av_small_strptime().
 315
 316 2015-03-29 - 6fe2641 - lavc 56.22.0
 317   Add FF_PROFILE_DTS_EXPRESS.
 318
 319 2015-03-29 - c484561 - lavu 54.10.0
 320   Add AV_PIX_FMT_MMAL for MMAL hardware acceleration.
 321
 322 2015-02-19 - 31d2039 - lavc 56.13
 323   Add width, height, coded_width, coded_height and format to
 324   AVCodecParserContext.
 325
 326 2015-02-19 - 5b1d9ce - lavu 54.9.0
 327   Add AV_PIX_FMT_QSV for QSV hardware acceleration.
 328
 329 2015-01-27 - 728685f - lavc 56.12.0, lavu 54.8.0 - avcodec.h, frame.h
 330   Add AV_PKT_DATA_AUDIO_SERVICE_TYPE and AV_FRAME_DATA_AUDIO_SERVICE_TYPE for
 331   storing the audio service type as side data.
 332
 333 2015-01-14 - e2ad0b6 - lavu 54.6.0 - imgutils.h
 334   Add utility functions for image manipulation: av_image_get_buffer_size()
 335   av_image_fill_arrays() and av_image_copy_to_buffer().
 336
 337 2014-12-25 - c220a60 - lavc 56.10.0 - vdpau.h
 338   Add av_vdpau_get_surface_parameters().
 339
 340 2014-12-25 - 6c99c92 - lavc 56.9.0 - avcodec.h
 341   Add AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH flag to av_vdpau_bind_context().
 342
 343 2014-12-25 - 57b6704 - lavc 56.8.0 - avcodec.h
 344   Add AVCodecContext.sw_pix_fmt.
 345
 346 2014-11-07 - 1384df6 - lavf 56.06.3 - avformat.h
 347   Add AVFormatContext.avoid_negative_ts.
 348
 349 2014-11-06 - 5e80fb7 - lavc 56.6.0 - vorbis_parser.h
 350   Add a public API for parsing vorbis packets.
 351
 352 2014-10-24 - 1bd0bdc - lavu 54.5.0 - time.h
 353   Add av_gettime_relative().
 354
 355 2014-10-15 - 7ea1b34 - lavc 56.5.0 - avcodec.h
 356   Replace AVCodecContext.time_base used for decoding
 357   with AVCodecContext.framerate.
 358
 359 2014-10-15 - d565fef1- lavc 56.4.0 - avcodec.h
 360   Add AV_HWACCEL_FLAG_IGNORE_LEVEL flag to av_vdpau_bind_context().
 361
 362 2014-10-13 - 2df0c32 - lavc 56.03.0 - avcodec.h
 363   Add AVCodecContext.initial_padding. Deprecate the use of AVCodecContext.delay
 364   for audio encoding.
 365
 366 2014-10-08 - 5a419b2 - lavu 54.04.0 - pixdesc.h
 367   Add API to return the name of frame and context color properties.
 368
 369 2014-10-06 - e3e158e - lavc 56.2.0 - vdpau.h
 370   Add av_vdpau_bind_context(). This function should now be used for creating
 371   (or resetting) a AVVDPAUContext instead of av_vdpau_alloc_context().
 372
 373 2014-08-25 - b263f8f - lavf 56.03.0 - avformat.h
 374   Add AVFormatContext.max_ts_probe.
 375
 376 ------------------------------8<-------------------------------------
 377                    11 branch was cut here
 378 ----------------------------->8--------------------------------------
 379
 380 2014-08-28 - 9301486 - lavc 56.1.0 - avcodec.h
 381   Add AV_PKT_DATA_STEREO3D to export container-level stereo3d information.
 382
 383 2014-08-13 - 8ddc326 - lavu 54.03.0 - mem.h
 384   Add av_strndup().
 385
 386 2014-08-13 - a8c104a - lavu 54.02.0 - opt.h
 387   Add av_opt_get_dict_val/set_dict_val with AV_OPT_TYPE_DICT to support
 388   dictionary types being set as options.
 389
 390 2014-08-13 - afbd4b8 - lavf 56.01.0 - avformat.h
 391   Add AVFormatContext.event_flags and AVStream.event_flags for signaling to
 392   the user when events happen in the file/stream.
 393
 394 2014-08-10 - fb1ddcd - lavr 2.1.0 - avresample.h
 395   Add avresample_convert_frame() and avresample_config().
 396
 397 2014-08-10 - fb1ddcd - lavu 54.1.0 - error.h
 398   Add AVERROR_INPUT_CHANGED and AVERROR_OUTPUT_CHANGED.
 399
 400 2014-08-08 - d35b94f - lavc 55.57.4 - avcodec.h
 401   Deprecate FF_IDCT_XVIDMMX define and xvidmmx idct option.
 402   Replaced by FF_IDCT_XVID and xvid respectively.
 403
 404 2014-08-07 - bb78903 - lsws 2.1.3 - swscale.h
 405   sws_getCachedContext is not going to be removed in the future.
 406
 407 2014-08-07 - ad1ee5f - lavc 55.57.3 - avcodec.h
 408   reordered_opaque is not going to be removed in the future.
 409
 410 2014-08-04 - e9abafc - lavu 53.22.0 - pixfmt.h
 411   Add AV_PIX_FMT_YA16 pixel format for 16 bit packed gray with alpha.
 412
 413 2014-08-04 - e96c3b8 - lavu 53.21.1 - avstring.h
 414   Rename AV_PIX_FMT_Y400A to AV_PIX_FMT_YA8 to better identify the format.
 415   An alias pixel format and color space name are provided for compatibility.
 416
 417 2014-08-04 - d2962e9 - lavu 53.21.0 - pixdesc.h
 418   Support name aliases for pixel formats.
 419
 420 2014-08-03 - 1ef9e83 - lavc 55.57.2 - avcodec.h
 421 2014-08-03 - 1ef9e83 - lavu 53.20.0 - frame.h
 422   Deprecate AVCodecContext.dtg_active_format and use side-data instead.
 423
 424 2014-08-03 - 9f17685 - lavc 55.57.1 - avcodec.h
 425   Deprecate unused FF_IDCT_IPP define and ipp avcodec option.
 426   Deprecate unused FF_DEBUG_PTS define and pts avcodec option.
 427   Deprecate unused FF_CODER_TYPE_DEFLATE define and deflate avcodec option.
 428   Deprecate unused FF_DCT_INT define and int avcodec option.
 429   Deprecate unused avcodec option scenechange_factor.
 430
 431 2014-07-29 - 69e7336 - lavu 53.19.0 - avstring.h
 432   Make name matching function from lavf public as av_match_name().
 433
 434 2014-07-28 - c5fca01 - lavc 55.57.0 - avcodec.h
 435   Add AV_CODEC_PROP_REORDER to mark codecs supporting frame reordering.
 436
 437 2014-07-09 - a54f03b - lavu 53.18.0 - display.h
 438   Add av_display_matrix_flip() to flip the transformation matrix.
 439
 440 2014-07-09 - f6ee61f - lavc 55.56.0 - dv_profile.h
 441   Add a public API for DV profile handling.
 442
 443 2014-06-20 - 9e500ef - lavu 53.17.0 - imgutils.h
 444   Add av_image_check_sar().
 445
 446 2014-06-20 - 874390e - lavc 55.55.0 - avcodec.h
 447   Add av_packet_rescale_ts() to simplify timestamp conversion.
 448
 449 2014-06-18 - 194be1f - lavf 55.20.0 - avformat.h
 450   The proper way for providing a hint about the desired timebase to the muxers
 451   is now setting AVStream.time_base, instead of AVStream.codec.time_base as was
 452   done previously. The old method is now deprecated.
 453
 454 2014-06-01 - 0957b27 - lavc 55.54.0 - avcodec.h
 455   Add AVCodecContext.side_data_only_packets to allow encoders to output packets
 456   with only side data. This option may become mandatory in the future, so all
 457   users are recommended to update their code and enable this option.
 458
 459 2014-06-01 - 8c02adc - lavu 53.16.0 - frame.h, pixfmt.h
 460   Move all color-related enums (AVColorPrimaries, AVColorSpace, AVColorRange,
 461   AVColorTransferCharacteristic, and AVChromaLocation) inside lavu.
 462   Add AVFrame fields for them on the next lavu major bump.
 463
 464 2014-05-28 - b2d4565 - lavr 1.3.0 - avresample.h
 465   Add avresample_max_output_samples
 466
 467 2014-05-28 - 6d21259 - lavf 55.19.0 - avformat.h
 468   Add strict_std_compliance and related AVOptions to support experimental
 469   muxing.
 470
 471 2014-05-20 - c23c96b - lavf 55.18.0 - avformat.h
 472   Add av_stream_get_side_data() to access stream-level side data
 473   in the same way as av_packet_get_side_data().
 474
 475 2014-05-19 - bddd8cb - lavu 53.15.0 - frame.h, display.h
 476   Add AV_FRAME_DATA_DISPLAYMATRIX for exporting frame-level
 477   spatial rendering on video frames for proper display.
 478
 479 2014-05-19 - bddd8cb - lavc 55.53.0 - avcodec.h
 480   Add AV_PKT_DATA_DISPLAYMATRIX for exporting packet-level
 481   spatial rendering on video frames for proper display.
 482
 483 2014-05-19 - a312f71 - lavf 55.17.1 - avformat.h
 484   Deprecate AVStream.pts and the AVFrac struct, which was its only use case.
 485   Those fields were poorly defined and not meant to be public, so there is
 486   no replacement for them.
 487
 488 2014-05-18 - fd05602 - lavc 55.52.0 - avcodec.h
 489   Add avcodec_free_context(). From now on it should be used for freeing
 490   AVCodecContext.
 491
 492 2014-05-15 - 0c1959b - lavf 55.17.0 - avformat.h
 493   Add AVFMT_FLAG_BITEXACT flag. Muxers now use it instead of checking
 494   CODEC_FLAG_BITEXACT on the first stream.
 495
 496 2014-05-11 - 66e6c8a - lavu 53.14.0 - pixfmt.h
 497   Add AV_PIX_FMT_VDA for new-style VDA acceleration.
 498
 499 2014-05-01 - a2941c8 - lavc 55.50.3 - avcodec.h
 500   Deprecate CODEC_FLAG_MV0. It is replaced by the flag "mv0" in the
 501   "mpv_flags" private option of the mpegvideo encoders.
 502
 503 2014-05-01 - 6484149 - lavc 55.50.2 - avcodec.h
 504   Deprecate CODEC_FLAG_GMC. It is replaced by the "gmc" private option of the
 505   libxvid encoder.
 506
 507 2014-05-01 - b2c3171 - lavc 55.50.1 - avcodec.h
 508   Deprecate CODEC_FLAG_NORMALIZE_AQP. It is replaced by the flag "naq" in the
 509   "mpv_flags" private option of the mpegvideo encoders.
 510
 511 2014-05-01 - 5fcceda - avcodec.h
 512   Deprecate CODEC_FLAG_INPUT_PRESERVED. Its functionality is replaced by passing
 513   reference-counted frames to encoders.
 514
 515 2014-04-28 - ed4b757 - lavc 55.50.0 - dxva2.h
 516   Add FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO for old Intel GPUs.
 517
 518 2014-04-22 - 502512e - lavu 53.13.0 - avutil.h
 519   Add av_get_time_base_q().
 520
 521 2014-04-17 - 0983d48 - lavu 53.12.0 - crc.h
 522   Add AV_CRC_16_ANSI_LE crc variant.
 523
 524 2014-04-07 - 8b17243 - lavu 53.11.0 - pixfmt.h
 525   Add AV_PIX_FMT_YVYU422 pixel format.
 526
 527 2014-04-04 - 8542f9c - lavu 53.10.0 - replaygain.h
 528   Full scale for peak values is now 100000 (instead of UINT32_MAX) and values
 529   may overflow.
 530
 531 2014-04-03 - 7763118 - lavu 53.09.0 - log.h
 532   Add AV_LOG(c) macro to have 256 color debug messages.
 533
 534 2014-03-24 - d161ae0 - lavu 53.08.0 - frame.h
 535   Add av_frame_remove_side_data() for removing a single side data
 536   instance from a frame.
 537
 538 2014-03-24 - 5a7e35d - lavu 53.07.0 - frame.h, replaygain.h
 539   Add AV_FRAME_DATA_REPLAYGAIN for exporting replaygain tags.
 540   Add a new header replaygain.h with the AVReplayGain struct.
 541
 542 2014-03-24 - 5a7e35d - lavc 55.36.0 - avcodec.h
 543   Add AV_PKT_DATA_REPLAYGAIN for exporting replaygain tags.
 544
 545 2014-03-24 - 25b3258 - lavf 55.13.0 - avformat.h
 546   Add AVStream.side_data and AVStream.nb_side_data for exporting stream-global
 547   side data (e.g. replaygain tags, video rotation)
 548
 549 2014-03-24 - 0e2c3ee - lavc 55.35.0 - avcodec.h
 550   Give the name AVPacketSideData to the previously anonymous struct used for
 551   AVPacket.side_data.
 552
 553 2014-03-16 - 1481d24 - lavu 53.06.0 - pixfmt.h
 554   Add RGBA64 pixel format and variants.
 555
 556 2014-02-24 - 1155fd0 - lavu 53.05.0 - frame.h
 557   Add av_frame_copy() for copying the frame data.
 558
 559 2014-02-22 - 7e86c27 - lavr 1.2.0 - avresample.h
 560   Add avresample_is_open() for checking whether a resample context is open.
 561
 562 2014-02-19 - c3ecd96 - lavu 53.04.0  - opt.h
 563   Add AV_OPT_FLAG_EXPORT and AV_OPT_FLAG_READONLY to mark options meant (only)
 564   for reading.
 565
 566 2014-02-19 - 6bb8720 - lavu 53.03.01 - opt.h
 567   Deprecate unused AV_OPT_FLAG_METADATA.
 568
 569 ------------------------------8<-------------------------------------
 570                    10 branch was cut here
 571 ----------------------------->8--------------------------------------
 572
 573 2014-02-15 - c98f316 - lavu 53.3.0 - frame.h
 574   Add AV_FRAME_DATA_DOWNMIX_INFO value to the AVFrameSideDataType enum and
 575   downmix_info.h API, which identify downmix-related metadata.
 576
 577 2014-02-04 - d9ae103 - lavf 55.11.0 - avformat.h
 578   Add AVFormatContext.max_interleave_delta for controlling amount of buffering
 579   when interleaving.
 580
 581 2014-01-20 - 93c553c - lavc 55.32.1 - avcodec.h
 582   Edges are not required anymore on video buffers allocated by get_buffer2()
 583   (i.e. as if the CODEC_FLAG_EMU_EDGE flag was always on). Deprecate
 584   CODEC_FLAG_EMU_EDGE and avcodec_get_edge_width().
 585
 586 2014-01-05 - 5b4797a - lavu 53.2.0 - frame.h
 587   Add AV_FRAME_DATA_MATRIXENCODING value to the AVFrameSideDataType enum, which
 588   identifies AVMatrixEncoding data.
 589
 590 2014-01-05 - 5c437fb - lavu 53.1.0 - channel_layout.h
 591   Add values for various Dolby flags to the AVMatrixEncoding enum.
 592
 593 2013-12-20 - 2a41826 - lavc 55.30.0 - avcodec.h
 594   Add HEVC profiles
 595
 596 2013-12-11 - b9fb59d,9431356,d7b3ee9 - lavc 55.28.1 - avcodec.h
 597   av_frame_alloc(), av_frame_unref() and av_frame_free() now can and should be
 598   used instead of avcodec_alloc_frame(), avcodec_get_frame_defaults() and
 599   avcodec_free_frame() respectively. The latter three functions are deprecated.
 600
 601 2013-12-09 - 7e244c6- - lavu 52.20.0 - frame.h
 602   Add AV_FRAME_DATA_STEREO3D value to the AVFrameSideDataType enum and
 603   stereo3d.h API, that identify codec-independent stereo3d information.
 604
 605 2013-11-26 - 1eaac1d- - lavu 52.19.0 - frame.h
 606   Add AV_FRAME_DATA_A53_CC value to the AVFrameSideDataType enum, which
 607   identifies ATSC A53 Part 4 Closed Captions data.
 608
 609 2013-11-14 - cce3e0a - lavu 52.18.0 - mem.h
 610   Move av_fast_malloc() and av_fast_realloc() for libavcodec to libavutil.
 611
 612 2013-11-14 - 8941971 - lavc 55.27.0 - avcodec.h
 613   Deprecate AVCodecContext.error_rate, it is replaced by the 'error_rate'
 614   private option of the mpegvideo encoder family.
 615
 616 2013-11-14 - 728c465 - lavc 55.26.0 - vdpau.h
 617   Add av_vdpau_get_profile().
 618   Add av_vdpau_alloc_context(). This function must from now on be
 619   used for allocating AVVDPAUContext.
 620
 621 2013-11-04 - cd8f772 - lavc 55.25.0 - avcodec.h
 622   Add ITU-R BT.2020 and other not yet included values to color primaries,
 623   transfer characteristics and colorspaces.
 624
 625 2013-10-31 - 28096e0 - lavu 52.17.0 - frame.h
 626   Add AVFrame.flags and AV_FRAME_FLAG_CORRUPT.
 627
 628 2013-09-28 - 0767bfd - lavfi 3.11.0 - avfilter.h
 629   Add AVFilterGraph.execute and AVFilterGraph.opaque for custom slice threading
 630   implementations.
 631
 632 2013-09-21 - e208e6d - lavu 52.16.0 - pixfmt.h
 633   Add interleaved 4:2:2 8/10-bit formats AV_PIX_FMT_NV16 and
 634   AV_PIX_FMT_NV20.
 635
 636 2013-09-16 - 3feb3d6 - lavu 52.15.0 - mem.h
 637   Add av_reallocp.
 638
 639 2013-08-10 - 5a9a9d4 - lavc 55.16.0 - avcodec.h
 640   Extend AVPacket API with av_packet_unref, av_packet_ref,
 641   av_packet_move_ref, av_packet_copy_props, av_packet_free_side_data.
 642
 643 2013-08-05 - f824535 - lavc 55.13.0 - avcodec.h
 644   Deprecate the bitstream-related members from struct AVVDPAUContext.
 645   The bitstream buffers no longer need to be explicitly freed.
 646
 647 2013-08-05 - 549294f - lavc 55.12.0 - avcodec.h
 648   Deprecate the CODEC_CAP_HWACCEL_VDPAU codec capability. Use CODEC_CAP_HWACCEL
 649   and select the AV_PIX_FMT_VDPAU format with get_format() instead.
 650
 651 2013-08-05 - a0ad5d0 - lavu 52.14.0 - pixfmt.h
 652   Deprecate AV_PIX_FMT_VDPAU_*. Use AV_PIX_FMT_VDPAU instead.
 653
 654 2013-08-02 - a8b1927 - lavc 55.11.0 - avcodec.h
 655   Add output_picture_number to AVCodecParserContext.
 656
 657 2013-06-24 - 95d5246 - lavc 55.10.0 - avcodec.h
 658   Add MPEG-2 AAC profiles
 659
 660 2013-06-04 - fc962d4 - lavu 52.13.0 - mem.h
 661   Add av_realloc_array and av_reallocp_array
 662
 663 2013-05-24 - 129bb23 - lavfi 3.10.0 - avfilter.h
 664   Add support for slice multithreading to lavfi. Filters supporting threading
 665   are marked with AVFILTER_FLAG_SLICE_THREADS.
 666   New fields AVFilterContext.thread_type, AVFilterGraph.thread_type and
 667   AVFilterGraph.nb_threads (accessible directly or through AVOptions) may be
 668   used to configure multithreading.
 669
 670 2013-05-24 - 2a6eaea - lavu 52.12.0 - cpu.h
 671   Add av_cpu_count() function for getting the number of logical CPUs.
 672
 673 2013-05-24 - b493847 - lavc 55.7.0 - avcodec.h
 674   Add picture_structure to AVCodecParserContext.
 675
 676 2013-05-15 - e6c4ac7 - lavu 52.11.0 - pixdesc.h
 677   Replace PIX_FMT_* flags with AV_PIX_FMT_FLAG_*.
 678
 679 2013-04-03 - 507b1e4 - lavc 55.4.0 - avcodec.h
 680   Add field_order to AVCodecParserContext.
 681
 682 2013-04-19 - 5e83d9a - lavc 55.2.0 - avcodec.h
 683   Add CODEC_FLAG_UNALIGNED to allow decoders to produce unaligned output.
 684
 685 2013-04-11 - lavfi 3.8.0
 686   38f0c07 - Move all content from avfiltergraph.h to avfilter.h. Deprecate
 687             avfilterhraph.h, user applications should include just avfilter.h
 688   bc1a985 - Add avfilter_graph_alloc_filter(), deprecate avfilter_open() and
 689             avfilter_graph_add_filter().
 690   1113672 - Add AVFilterContext.graph pointing to the AVFilterGraph that contains the
 691             filter.
 692   48a5ada - Add avfilter_init_str(), deprecate avfilter_init_filter().
 693   1ba95a9 - Add avfilter_init_dict().
 694   7cdd737 - Add AVFilter.flags field and AVFILTER_FLAG_DYNAMIC_{INPUTS,OUTPUTS} flags.
 695   7e8fe4b - Add avfilter_pad_count() for counting filter inputs/outputs.
 696   fa2a34c - Add avfilter_next(), deprecate av_filter_next().
 697             Deprecate avfilter_uninit().
 698
 699 2013-04-09 - lavfi 3.7.0 - avfilter.h
 700   b439c99 - Add AVFilter.priv_class for exporting filter options through the
 701             AVOptions API in the similar way private options work in lavc and lavf.
 702   8114c10 - Add avfilter_get_class().
 703   Switch all filters to use AVOptions.
 704
 705 2013-03-19 - 2c328a9 - lavu 52.9.0 - pixdesc.h
 706   Add av_pix_fmt_count_planes() function for counting planes in a pixel format.
 707
 708 2013-03-16 - 42c7c61 - lavfi 3.6.0
 709   Add AVFilterGraph.nb_filters, deprecate AVFilterGraph.filter_count.
 710
 711 2013-03-08 - Reference counted buffers - lavu 52.8.0, lavc 55.0.0, lavf 55.0.0,
 712 lavd 54.0.0, lavfi 3.5.0
 713   8e401db, 1cec062 - add a new API for reference counted buffers and buffer
 714                      pools (new header libavutil/buffer.h).
 715   1afddbe - add AVPacket.buf to allow reference counting for the AVPacket data.
 716             Add av_packet_from_data() function for constructing packets from
 717             av_malloc()ed data.
 718   7ecc2d4 - move AVFrame from lavc to lavu (new header libavutil/frame.h), add
 719             AVFrame.buf/extended_buf to allow reference counting for the AVFrame
 720             data. Add new API for working with reference-counted AVFrames.
 721   759001c - add the refcounted_frames field to AVCodecContext to make audio and
 722             video decoders return reference-counted frames. Add get_buffer2()
 723             callback to AVCodecContext which allocates reference-counted frames.
 724             Add avcodec_default_get_buffer2() as the default get_buffer2()
 725             implementation.
 726             Deprecate AVCodecContext.get_buffer() / release_buffer() /
 727             reget_buffer(), avcodec_default_get_buffer(),
 728             avcodec_default_reget_buffer(), avcodec_default_release_buffer().
 729             Remove avcodec_default_free_buffers(), which should not have ever
 730             been called from outside of lavc.
 731             Deprecate the following AVFrame fields:
 732                 * base -- is now stored in AVBufferRef
 733                 * reference, type, buffer_hints -- are unnecessary in the new API
 734                 * hwaccel_picture_private, owner, thread_opaque -- should not
 735                   have been accessed from outside of lavc
 736                 * qscale_table, qstride, qscale_type, mbskip_table, motion_val,
 737                   mb_type, dct_coeff, ref_index -- mpegvideo-specific tables,
 738                   which are not exported anymore.
 739   7e35037 - switch libavfilter to use AVFrame instead of AVFilterBufferRef. Add
 740             av_buffersrc_add_frame(), deprecate av_buffersrc_buffer().
 741             Add av_buffersink_get_frame() and av_buffersink_get_samples(),
 742             deprecate av_buffersink_read() and av_buffersink_read_samples().
 743             Deprecate AVFilterBufferRef and all functions for working with it.
 744
 745 2013-03-17 - 12c5c1d - lavu 52.8.0 - avstring.h
 746   Add av_isdigit, av_isgraph, av_isspace, av_isxdigit.
 747
 748 2013-02-23 - 9f12235 - lavfi 3.4.0 - avfiltergraph.h
 749   Add resample_lavr_opts to AVFilterGraph for setting libavresample options
 750   for auto-inserted resample filters.
 751
 752 2013-01-25 - 38c1466 - lavu 52.7.0 - dict.h
 753   Add av_dict_parse_string() to set multiple key/value pairs at once from a
 754   string.
 755
 756 2013-01-25 - b85a5e8 - lavu 52.6.0 - avstring.h
 757   Add av_strnstr()
 758
 759 2013-01-15 - 8ee288d - lavu 52.5.0 - hmac.h
 760   Add AVHMAC.
 761
 762 2013-01-13 - 44e065d - lavc 54.36.0 - vdpau.h
 763   Add AVVDPAUContext struct for VDPAU hardware-accelerated decoding.
 764
 765 2013-01-12 - 169fb94 - lavu 52.4.0 - pixdesc.h
 766   Add AV_PIX_FMT_VDPAU flag.
 767
 768 2013-01-07 - 074a00d - lavr 1.1.0
 769   Add avresample_set_channel_mapping() for input channel reordering,
 770   duplication, and silencing.
 771
 772 ------------------------------8<-------------------------------------
 773                    9 branch was cut here
 774 ----------------------------->8--------------------------------------
 775
 776 2012-12-29 - lavu 52.3.0
 777   d8fd06c - Add av_basename() and av_dirname().
 778   c1a02e8 - Add av_pix_fmt_get_chroma_sub_sample and deprecate
 779             avcodec_get_chroma_sub_sample.
 780
 781 2012-11-11 - 5980f5d - lavu 52.2.0 - audioconvert.h
 782   Rename audioconvert.h to channel_layout.h. audioconvert.h is now deprecated.
 783
 784 2012-11-05 - dfde8a3 - lavu 52.1.0 - intmath.h
 785   Add av_ctz() for trailing zero bit count
 786
 787 2012-10-21 - a893655 - lavu 51.45.0 - error.h
 788   Add AVERROR_EXPERIMENTAL
 789
 790 2012-10-12 - d2fcb35 - lavu 51.44.0 - pixdesc.h
 791   Add functions for accessing pixel format descriptors.
 792   Accessing the av_pix_fmt_descriptors array directly is now
 793   deprecated.
 794
 795 2012-10-11 - 9a92aea - lavu 51.43.0 - aes.h, md5.h, sha.h, tree.h
 796   Add functions for allocating the opaque contexts for the algorithms,
 797   deprecate the context size variables.
 798
 799 2012-10-10 - b522000 - lavf 54.18.0 - avio.h
 800   Add avio_closep to complement avio_close.
 801
 802 2012-10-08 - 78071a1 - lavu 51.42.0 - pixfmt.h
 803   Rename PixelFormat to AVPixelFormat and all PIX_FMT_* to AV_PIX_FMT_*.
 804   To provide backwards compatibility, PixelFormat is now #defined as
 805   AVPixelFormat.
 806   Note that this can break user code that includes pixfmt.h and uses the
 807   'PixelFormat' identifier. Such code should either #undef PixelFormat
 808   or stop using the PixelFormat name.
 809
 810 2012-10-05 - e7ba5b1 - lavr 1.0.0 - avresample.h
 811   Data planes parameters to avresample_convert() and
 812   avresample_read() are now uint8_t** instead of void**.
 813   Libavresample is now stable.
 814
 815 2012-09-24 - a42aada - lavc 54.28.0 - avcodec.h
 816   Add avcodec_free_frame(). This function must now
 817   be used for freeing an AVFrame.
 818
 819 2012-09-12 - 8919fee - lavu 51.41.0 - audioconvert.h
 820   Added AV_CH_LOW_FREQUENCY_2 channel mask value.
 821
 822 2012-09-04 - 686a329 - lavu 51.40.0 - opt.h
 823   Reordered the fields in default_val in AVOption, changed which
 824   default_val field is used for which AVOptionType.
 825
 826 2012-08-30 - a231832 - lavc 54.26.1 - avcodec.h
 827   Add codec descriptor properties AV_CODEC_PROP_LOSSY and
 828   AV_CODEC_PROP_LOSSLESS.
 829
 830 2012-08-18 - lavc 54.26 - avcodec.h
 831   Add codec descriptors for accessing codec properties without having
 832   to refer to a specific decoder or encoder.
 833
 834   c223d79 - Add an AVCodecDescriptor struct and functions
 835             avcodec_descriptor_get() and avcodec_descriptor_next().
 836   51efed1 - Add AVCodecDescriptor.props and AV_CODEC_PROP_INTRA_ONLY.
 837   91e59fe - Add avcodec_descriptor_get_by_name().
 838
 839
 840 2012-08-08 - 1d9c2dc - lavu 51.39 - avutil.h
 841   Don't implicitly include libavutil/common.h in avutil.h
 842
 843 2012-08-08 - 987170c - lavu 51.38 - dict.h
 844   Add av_dict_count().
 845
 846 2012-08-07 - 104e10f - lavc 54.25 - avcodec.h
 847   Rename CodecID to AVCodecID and all CODEC_ID_* to AV_CODEC_ID_*.
 848   To provide backwards compatibility, CodecID is now #defined as AVCodecID.
 849   Note that this can break user code that includes avcodec.h and uses the
 850   'CodecID' identifier. Such code should either #undef CodecID or stop using the
 851   CodecID name.
 852
 853 2012-08-03 - 239fdf1 - lavu 51.37.1 - cpu.h
 854                        lsws 2.1.1   - swscale.h
 855   Rename AV_CPU_FLAG_MMX2  ---> AV_CPU_FLAG_MMXEXT.
 856   Rename SWS_CPU_CAPS_MMX2 ---> SWS_CPU_CAPS_MMXEXT.
 857
 858 2012-07-29 - 681ed00 - lavf 54.13.0 - avformat.h
 859   Add AVFMT_FLAG_NOBUFFER for low latency use cases.
 860
 861 2012-07-20 - b70d89a - lavfi 3.0.0 - avfilter.h
 862   Add avfilter_unref_bufferp().
 863
 864 2012-07-10 - 5fade8a - lavu 51.37.0
 865   Add av_malloc_array() and av_mallocz_array()
 866
 867 2012-06-22 - d3d3a32 - lavu 51.34.0
 868   Add av_usleep()
 869
 870 2012-06-20 - ae0a301 - lavu 51.33.0
 871   Move av_gettime() to libavutil, add libavutil/time.h
 872
 873 2012-06-09 - 3971be0 - lavr 0.0.3
 874   Add a parameter to avresample_build_matrix() for Dolby/DPLII downmixing.
 875
 876 2012-06-12 - 9baeff9 - lavfi 2.23.0 - avfilter.h
 877   Add AVFilterContext.nb_inputs/outputs. Deprecate
 878   AVFilterContext.input/output_count.
 879
 880 2012-06-12 - 84b9fbe - lavfi 2.22.0 - avfilter.h
 881   Add avfilter_pad_get_type() and avfilter_pad_get_name(). Those
 882   should now be used instead of accessing AVFilterPad members
 883   directly.
 884
 885 2012-06-12 - b0f0dfc - lavu 51.32.0 - audioconvert.h
 886   Add av_get_channel_layout_channel_index(), av_get_channel_name()
 887   and av_channel_layout_extract_channel().
 888
 889 2012-05-25 - 154486f - lavu 51.31.0 - opt.h
 890   Add av_opt_set_bin()
 891
 892 2012-05-26 - e9cef89 - lavf 54.3.0
 893   Add AVFMT_TS_NONSTRICT format flag to indicate that a muxer supports
 894   non-increasing monotone timestamps.
 895
 896 2012-05-15 - lavfi 2.17.0
 897   Add support for audio filters
 898   ac71230/a2cd9be - add video/audio buffer sink in a new installed
 899                     header buffersink.h
 900   720c6b7 - add av_buffersrc_write_frame(), deprecate
 901             av_vsrc_buffer_add_frame()
 902   ab16504 - add avfilter_copy_buf_props()
 903   9453c9e - add extended_data to AVFilterBuffer
 904   1b8c927 - add avfilter_get_audio_buffer_ref_from_arrays()
 905
 906 2012-05-09 - lavu 51.30.0 - samplefmt.h
 907   142e740 - add av_samples_copy()
 908   6d7f617 - add av_samples_set_silence()
 909
 910 2012-05-09 - a5117a2 - lavc 54.13.1
 911   For audio formats with fixed frame size, the last frame
 912   no longer needs to be padded with silence, libavcodec
 913   will handle this internally (effectively all encoders
 914   behave as if they had CODEC_CAP_SMALL_LAST_FRAME set).
 915
 916 2012-05-07 - 828bd08 - lavc 54.13.0 - avcodec.h
 917   Add sample_rate and channel_layout fields to AVFrame.
 918
 919 2012-05-01 - 4010d72 - lavr 0.0.1
 920   Change AV_MIX_COEFF_TYPE_Q6 to AV_MIX_COEFF_TYPE_Q8.
 921
 922 2012-04-25 - 3527a73 - lavu 51.29.0 - cpu.h
 923   Add av_parse_cpu_flags()
 924
 925 2012-04-24 - c8af852 - lavr 0.0.0
 926   Add libavresample audio conversion library
 927
 928 2012-04-20 - 0c0d1bc - lavu 51.28.0 - audio_fifo.h
 929   Add audio FIFO functions:
 930     av_audio_fifo_free()
 931     av_audio_fifo_alloc()
 932     av_audio_fifo_realloc()
 933     av_audio_fifo_write()
 934     av_audio_fifo_read()
 935     av_audio_fifo_drain()
 936     av_audio_fifo_reset()
 937     av_audio_fifo_size()
 938     av_audio_fifo_space()
 939
 940 2012-04-14 - lavfi 2.16.0 - avfiltergraph.h
 941   d7bcc71 Add avfilter_graph_parse2().
 942   91d3cbe Add avfilter_inout_alloc() and avfilter_inout_free().
 943
 944 2012-04-08 - 4d693b0 - lavu 51.27.0 - samplefmt.h
 945   Add av_get_packed_sample_fmt() and av_get_planar_sample_fmt()
 946
 947 2012-04-05 - 5cc51a5 - lavu 51.26.0 - audioconvert.h
 948   Add av_get_default_channel_layout()
 949
 950 2012-03-20 - 3c90cc2 - lavfo 54.2.0
 951   Deprecate av_read_packet(), use av_read_frame() with
 952   AVFMT_FLAG_NOPARSE | AVFMT_FLAG_NOFILLIN in AVFormatContext.flags
 953
 954 2012-03-06 - 4d851f8 - lavu 51.25.0 - cpu.h
 955   Add av_set_cpu_flags_mask().
 956
 957 2012-03-05 - lavc 54.8.0
 958   6699d07 Add av_get_exact_bits_per_sample()
 959   9524cf7 Add av_get_audio_frame_duration()
 960
 961 2012-03-04 - 44fe77b - lavc 54.7.0 - avcodec.h
 962   Add av_codec_is_encoder/decoder().
 963
 964 2012-03-01 - 442c132 - lavc 54.3.0 - avcodec.h
 965   Add av_packet_shrink_side_data.
 966
 967 2012-02-29 - dd2a4bc - lavf 54.2.0 - avformat.h
 968   Add AVStream.attached_pic and AV_DISPOSITION_ATTACHED_PIC,
 969   used for dealing with attached pictures/cover art.
 970
 971 2012-02-25 - c9bca80 - lavu 51.24.0 - error.h
 972   Add AVERROR_UNKNOWN
 973   NOTE: this was backported to 0.8
 974
 975 2012-02-20 - e9cda85 - lavc 54.2.0
 976   Add duration field to AVCodecParserContext
 977
 978 2012-02-20 - 0b42a93 - lavu 51.23.1 - mathematics.h
 979   Add av_rescale_q_rnd()
 980
 981 2012-02-08 - 38d5533 - lavu 51.22.1 - pixdesc.h
 982   Add PIX_FMT_PSEUDOPAL flag.
 983
 984 2012-02-08 - 52f82a1 - lavc 54.01.0
 985   Add avcodec_encode_video2() and deprecate avcodec_encode_video().
 986
 987 2012-02-01 - 316fc74 - lavc 54.01.0
 988   Add av_fast_padded_malloc() as alternative for av_realloc() when aligned
 989   memory is required. The buffer will always have FF_INPUT_BUFFER_PADDING_SIZE
 990   zero-padded bytes at the end.
 991
 992 2012-01-31 - dd6d3b0 - lavf 54.01.0
 993   Add avformat_get_riff_video_tags() and avformat_get_riff_audio_tags().
 994   NOTE: this was backported to 0.8
 995
 996 2012-01-31 - af08d9a - lavc 54.01.0
 997   Add avcodec_is_open() function.
 998   NOTE: this was backported to 0.8
 999
1000 2012-01-30 - 8b93312 - lavu 51.22.0 - intfloat.h
1001   Add a new installed header libavutil/intfloat.h with int/float punning
1002   functions.
1003   NOTE: this was backported to 0.8
1004
1005 2012-01-25 - lavf 53.22.0
1006   f1caf01 Allow doing av_write_frame(ctx, NULL) for flushing possible
1007           buffered data within a muxer. Added AVFMT_ALLOW_FLUSH for
1008           muxers supporting it (av_write_frame makes sure it is called
1009           only for muxers with this flag).
1010
1011 ------------------------------8<-------------------------------------
1012                    0.8 branch was cut here
1013 ----------------------------->8--------------------------------------
1014
1015 2012-01-15 - lavc 53.34.0
1016   New audio encoding API:
1017   b2c75b6 Add CODEC_CAP_VARIABLE_FRAME_SIZE capability for use by audio
1018           encoders.
1019   5ee5fa0 Add avcodec_fill_audio_frame() as a convenience function.
1020   b2c75b6 Add avcodec_encode_audio2() and deprecate avcodec_encode_audio().
1021           Add AVCodec.encode2().
1022
1023 2012-01-12 - 3167dc9 - lavfi 2.15.0
1024   Add a new installed header -- libavfilter/version.h -- with version macros.
1025
1026 2011-01-03 - b73ec05 - lavu 51.21.0
1027   Add av_popcount64
1028
1029 2011-12-25 - lavfi 2.14.0
1030   e1d9dbf Add a new installed header - buffersrc.h
1031   It contains a new function av_buffersrc_buffer() that allows passing
1032   frames to the 'buffer' filter, but unlike av_vsrc_buffer_add_frame()
1033   it allows for direct rendering.
1034   1c9e340 Add avfilter_copy_frame_props() for copying properties from
1035   AVFrame to AVFilterBufferRef.
1036
1037 2011-12-25 - lavc 53.31.0
1038   Add the following new fields to AVFrame:
1039     b58dbb5 sample_aspect_ratio
1040     3a2ddf7 width, height
1041     8a4a5f6 format
1042
1043 2011-12-18 - 8400b12 - lavc 53.28.1
1044   Deprecate AVFrame.age. The field is unused.
1045
1046 2011-12-12 - 5266045 - lavf 53.17.0
1047   Add avformat_close_input().
1048   Deprecate av_close_input_file() and av_close_input_stream().
1049
1050 2011-12-09 - b2890f5 - lavu 51.20.0 - audioconvert.h
1051   Expand the channel layout list.
1052
1053 2011-12-02 - 0eea212 - lavc 53.25.0
1054   Add nb_samples and extended_data fields to AVFrame.
1055   Deprecate AVCODEC_MAX_AUDIO_FRAME_SIZE.
1056   Deprecate avcodec_decode_audio3() in favor of avcodec_decode_audio4().
1057   avcodec_decode_audio4() writes output samples to an AVFrame, which allows
1058   audio decoders to use get_buffer().
1059
1060 2011-12-04 - 560f773 - lavc 53.24.0
1061   Change AVFrame.data[4]/base[4]/linesize[4]/error[4] to [8] at next major bump.
1062   Change AVPicture.data[4]/linesize[4] to [8] at next major bump.
1063   Change AVCodecContext.error[4] to [8] at next major bump.
1064   Add AV_NUM_DATA_POINTERS to simplify the bump transition.
1065
1066 2011-11-24 - lavu 51.19.0
1067   bd97b2e - add planar RGB pixel formats
1068   6b0768e - add PIX_FMT_PLANAR and PIX_FMT_RGB pixel descriptions
1069
1070 2011-11-23 - bbb46f3 - lavu 51.18.0
1071   Add av_samples_get_buffer_size(), av_samples_fill_arrays(), and
1072   av_samples_alloc(), to samplefmt.h.
1073
1074 2011-11-23 - 8889cc4 - lavu 51.17.0
1075   Add planar sample formats and av_sample_fmt_is_planar() to samplefmt.h.
1076
1077 2011-11-19 - f3a29b7 - lavc 53.21.0
1078   Move some AVCodecContext fields to a new private struct, AVCodecInternal,
1079   which is accessed from a new field, AVCodecContext.internal.
1080   - fields moved:
1081       AVCodecContext.internal_buffer       --> AVCodecInternal.buffer
1082       AVCodecContext.internal_buffer_count --> AVCodecInternal.buffer_count
1083       AVCodecContext.is_copy               --> AVCodecInternal.is_copy
1084
1085 2011-11-16 - 6270671 - lavu 51.16.0
1086   Add av_timegm()
1087
1088 2011-11-13 - lavf 53.15.0
1089   New interrupt callback API, allowing per-AVFormatContext/AVIOContext
1090   interrupt callbacks.
1091   6aa0b98 Add AVIOInterruptCB struct and the interrupt_callback field to
1092           AVFormatContext.
1093   1dee0ac Add avio_open2() with additional parameters. Those are
1094           an interrupt callback and an options AVDictionary.
1095           This will allow passing AVOptions to protocols after lavf
1096           54.0.
1097
1098 2011-11-06 - ba04ecf - lavu 51.14.0
1099   Add av_strcasecmp() and av_strncasecmp() to avstring.h.
1100
1101 2011-11-06 - 07b172f - lavu 51.13.0
1102   Add av_toupper()/av_tolower()
1103
1104 2011-11-05 - b6d08f4 - lavf 53.13.0
1105   Add avformat_network_init()/avformat_network_deinit()
1106
1107 2011-10-27 - 512557b - lavc 53.15.0
1108   Remove avcodec_parse_frame.
1109   Deprecate AVCodecContext.parse_only and CODEC_CAP_PARSE_ONLY.
1110
1111 2011-10-19 - 569129a - lavf 53.10.0
1112   Add avformat_new_stream(). Deprecate av_new_stream().
1113
1114 2011-10-13 - b631fba - lavf 53.9.0
1115   Add AVFMT_NO_BYTE_SEEK AVInputFormat flag.
1116
1117 2011-10-12 - lavu 51.12.0
1118   AVOptions API rewrite.
1119
1120   - 145f741 FF_OPT_TYPE* renamed to AV_OPT_TYPE_*
1121   - new setting/getting functions with slightly different semantics:
1122         dac66da av_set_string3 -> av_opt_set
1123                 av_set_double  -> av_opt_set_double
1124                 av_set_q       -> av_opt_set_q
1125                 av_set_int     -> av_opt_set_int
1126
1127         41d9d51 av_get_string  -> av_opt_get
1128                 av_get_double  -> av_opt_get_double
1129                 av_get_q       -> av_opt_get_q
1130                 av_get_int     -> av_opt_get_int
1131
1132   - 8c5dcaa trivial rename av_next_option -> av_opt_next
1133   - 641c7af new functions - av_opt_child_next, av_opt_child_class_next
1134     and av_opt_find2()
1135
1136 2011-09-03 - fb4ca26 - lavc 53.10.0
1137                        lavf 53.6.0
1138                        lsws  2.1.0
1139   Add {avcodec,avformat,sws}_get_class().
1140
1141 2011-09-03 - c11fb82 - lavu 51.10.0
1142   Add AV_OPT_SEARCH_FAKE_OBJ flag for av_opt_find() function.
1143
1144 2011-08-26 - lavu 51.9.0
1145   - f2011ed Add av_fifo_peek2(), deprecate av_fifo_peek().
1146   - add41de..abc78a5 Do not include intfloat_readwrite.h,
1147     mathematics.h, rational.h, pixfmt.h, or log.h from avutil.h.
1148
1149 2011-08-16 - 48f9e45 - lavf 53.4.0
1150   Add avformat_query_codec().
1151
1152 2011-08-16 - bca06e7 - lavc 53.8.0
1153   Add avcodec_get_type().
1154
1155 2011-08-06 - 2f63440 - lavf 53.4.0
1156   Add error_recognition to AVFormatContext.
1157
1158 2011-08-02 - 9d39cbf - lavc 53.7.1
1159   Add AV_PKT_FLAG_CORRUPT AVPacket flag.
1160
1161 2011-07-10 - a67c061 - lavf 53.3.0
1162   Add avformat_find_stream_info(), deprecate av_find_stream_info().
1163   NOTE: this was backported to 0.7
1164
1165 2011-07-10 - 0b950fe - lavc 53.6.0
1166   Add avcodec_open2(), deprecate avcodec_open().
1167   NOTE: this was backported to 0.7
1168
1169   Add avcodec_alloc_context3. Deprecate avcodec_alloc_context() and
1170   avcodec_alloc_context2().
1171
1172 2011-06-23 - 67e9ae1 - lavu 51.8.0 - attributes.h
1173   Add av_printf_format().
1174
1175 ------------------------------8<-------------------------------------
1176                    0.7 branch was cut here
1177 ----------------------------->8--------------------------------------
1178
1179 2011-06-16 - 05e84c9, 25de595 - lavf 53.2.0 - avformat.h
1180   Add avformat_open_input and avformat_write_header().
1181   Deprecate av_open_input_stream, av_open_input_file,
1182   AVFormatParameters and av_write_header.
1183
1184 2011-06-16 - 7e83e1c, dc59ec5 - lavu 51.7.0 - opt.h
1185   Add av_opt_set_dict() and av_opt_find().
1186   Deprecate av_find_opt().
1187   Add AV_DICT_APPEND flag.
1188
1189 2011-06-10 - cb7c11c - lavu 51.6.0 - opt.h
1190   Add av_opt_flag_is_set().
1191
1192 2011-06-08 - d9f80ea - lavu 51.5.0 - AVMetadata
1193   Move AVMetadata from lavf to lavu and rename it to
1194   AVDictionary -- new installed header dict.h.
1195   All av_metadata_* functions renamed to av_dict_*.
1196
1197 2011-06-07 - a6703fa - lavu 51.4.0 - av_get_bytes_per_sample()
1198   Add av_get_bytes_per_sample() in libavutil/samplefmt.h.
1199   Deprecate av_get_bits_per_sample_fmt().
1200
1201 2011-06-05 - b39b062 - lavu 51.3.0 - opt.h
1202   Add av_opt_free convenience function.
1203
1204 2011-05-28 - 0420bd7 - lavu 51.2.0 - pixdesc.h
1205   Add av_get_pix_fmt_name() in libavutil/pixdesc.h, and deprecate
1206   avcodec_get_pix_fmt_name() in libavcodec/avcodec.h in its favor.
1207
1208 2011-05-25 - 30315a8 - lavf 53.1.0 - avformat.h
1209   Add fps_probe_size to AVFormatContext.
1210
1211 2011-05-18 - 64150ff - lavc 53.4.0 - AVCodecContext.request_sample_fmt
1212   Add request_sample_fmt field to AVCodecContext.
1213
1214 2011-05-10 - 188dea1 - lavc 53.3.0 - avcodec.h
1215   Deprecate AVLPCType and the following fields in
1216   AVCodecContext: lpc_coeff_precision, prediction_order_method,
1217   min_partition_order, max_partition_order, lpc_type, lpc_passes.
1218   Corresponding FLAC encoder options should be used instead.
1219
1220 2011-04-26 - bebe72f - lavu 51.1.0 - avutil.h
1221   Add AVPictureType enum and av_get_picture_type_char(), deprecate
1222   FF_*_TYPE defines and av_get_pict_type_char() defined in
1223   libavcodec/avcodec.h.
1224
1225 2011-04-26 - 10d3940 - lavfi 2.3.0 - avfilter.h
1226   Add pict_type and key_frame fields to AVFilterBufferRefVideo.
1227
1228 2011-04-26 - 7a11c82 - lavfi 2.2.0 - vsrc_buffer
1229   Add sample_aspect_ratio fields to vsrc_buffer arguments
1230
1231 2011-04-21 - 94f7451 - lavc 53.1.0 - avcodec.h
1232   Add CODEC_CAP_SLICE_THREADS for codecs supporting sliced threading.
1233
1234 2011-04-15 - lavc 52.120.0 - avcodec.h
1235   AVPacket structure got additional members for passing side information:
1236     4de339e introduce side information for AVPacket
1237     2d8591c make containers pass palette change in AVPacket
1238
1239 2011-04-12 - lavf 52.107.0 - avio.h
1240   Avio cleanup, part II - deprecate the entire URLContext API:
1241     175389c add avio_check as a replacement for url_exist
1242     ff1ec0c add avio_pause and avio_seek_time as replacements
1243             for _av_url_read_fseek/fpause
1244     cdc6a87 deprecate av_protocol_next(), avio_enum_protocols
1245             should be used instead.
1246     80c6e23 rename url_set_interrupt_cb->avio_set_interrupt_cb.
1247     f87b1b3 rename open flags: URL_* -> AVIO_*
1248     f8270bb add avio_enum_protocols.
1249     5593f03 deprecate URLProtocol.
1250     c486dad deprecate URLContext.
1251     026e175 deprecate the typedef for URLInterruptCB
1252     8e76a19 deprecate av_register_protocol2.
1253     b840484 deprecate URL_PROTOCOL_FLAG_NESTED_SCHEME
1254     1305d93 deprecate av_url_read_seek
1255     fa104e1 deprecate av_url_read_pause
1256     727c7aa deprecate url_get_filename().
1257     5958df3 deprecate url_max_packet_size().
1258     1869ea0 deprecate url_get_file_handle().
1259     32a97d4 deprecate url_filesize().
1260     e52a914 deprecate url_close().
1261     58a48c6 deprecate url_seek().
1262     925e908 deprecate url_write().
1263     dce3756 deprecate url_read_complete().
1264     bc371ac deprecate url_read().
1265     0589da0 deprecate url_open().
1266     62eaaea deprecate url_connect.
1267     5652bb9 deprecate url_alloc.
1268     333e894 deprecate url_open_protocol
1269     e230705 deprecate url_poll and URLPollEntry
1270
1271 2011-04-10 - lavu  50.40.0 - pixfmt.h
1272   Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
1273
1274 2011-04-08 - lavf 52.106.0 - avformat.h
1275   Minor avformat.h cleanup:
1276     a9bf9d8 deprecate av_guess_image2_codec
1277     c3675df rename avf_sdp_create->av_sdp_create
1278
1279 2011-04-03 - lavf 52.105.0 - avio.h
1280   Large-scale renaming/deprecating of AVIOContext-related functions:
1281     724f6a0 deprecate url_fdopen
1282     403ee83 deprecate url_open_dyn_packet_buf
1283     6dc7d80 rename url_close_dyn_buf       -> avio_close_dyn_buf
1284     b92c545 rename url_open_dyn_buf        -> avio_open_dyn_buf
1285     8978fed introduce an AVIOContext.seekable field as a replacement for
1286             AVIOContext.is_streamed and url_is_streamed()
1287     b64030f deprecate get_checksum()
1288     4c4427a deprecate init_checksum()
1289     4ec153b deprecate udp_set_remote_url/get_local_port
1290     933e90a deprecate av_url_read_fseek/fpause
1291     8d9769a deprecate url_fileno
1292     b7f2fdd rename put_flush_packet -> avio_flush
1293     35f1023 deprecate url_close_buf
1294     83fddae deprecate url_open_buf
1295     d9d86e0 rename url_fprintf -> avio_printf
1296     59f65d9 deprecate url_setbufsize
1297     3e68b3b deprecate url_ferror
1298     66e5b1d deprecate url_feof
1299     e8bb2e2 deprecate url_fget_max_packet_size
1300     76aa876 rename url_fsize -> avio_size
1301     e519753 deprecate url_fgetc
1302     655e45e deprecate url_fgets
1303     a2704c9 rename url_ftell -> avio_tell
1304     e16ead0 deprecate get_strz() in favor of avio_get_str
1305     0300db8,2af07d3 rename url_fskip -> avio_skip
1306     6b4aa5d rename url_fseek -> avio_seek
1307     61840b4 deprecate put_tag
1308     22a3212 rename url_fopen/fclose -> avio_open/close.
1309     0ac8e2b deprecate put_nbyte
1310     77eb550 rename put_byte          -> avio_w8
1311                    put_[b/l]e<type>  -> avio_w[b/l]<type>
1312                    put_buffer        -> avio_write
1313     b7effd4 rename get_byte          -> avio_r8,
1314                    get_[b/l]e<type>  -> avio_r[b/l]<type>
1315                    get_buffer        -> avio_read
1316     b3db9ce deprecate get_partial_buffer
1317     8d9ac96 rename av_alloc_put_byte -> avio_alloc_context
1318
1319 2011-03-25 - 34b47d7 - lavc 52.115.0 - AVCodecContext.audio_service_type
1320   Add audio_service_type field to AVCodecContext.
1321
1322 2011-03-02 - 863c471 - lavf  52.103.0 - av_pkt_dump2, av_pkt_dump_log2
1323   Add new functions av_pkt_dump2, av_pkt_dump_log2 that uses the
1324   source stream timebase for outputting timestamps. Deprecate
1325   av_pkt_dump and av_pkt_dump_log.
1326
1327 2011-02-20 - e731b8d - lavf  52.102.0 - avio.h
1328   * e731b8d - rename init_put_byte() to ffio_init_context(), deprecating the
1329               original, and move it to a private header so it is no longer
1330               part of our public API. Instead, use av_alloc_put_byte().
1331   * ae628ec - rename ByteIOContext to AVIOContext.
1332
1333 2011-02-16 - 09d171b - lavf  52.101.0 - avformat.h
1334                        lavu  52.39.0  - parseutils.h
1335   * 610219a - Add av_ prefix to dump_format().
1336   * f6c7375 - Replace parse_date() in lavf with av_parse_time() in lavu.
1337   * ab0287f - Move find_info_tag from lavf to lavu and add av_prefix to it.
1338
1339 2011-02-15 - lavu 52.38.0 - merge libavcore
1340   libavcore is merged back completely into libavutil
1341
1342 2011-02-10 - 55bad0c - lavc 52.113.0 - vbv_delay
1343   Add vbv_delay field to AVCodecContext
1344
1345 2011-02-14 - 24a83bd - lavf 52.100.0 - AV_DISPOSITION_CLEAN_EFFECTS
1346   Add AV_DISPOSITION_CLEAN_EFFECTS disposition flag.
1347
1348 2011-02-14 - 910b5b8 - lavfi 1.76.0 - AVFilterLink sample_aspect_ratio
1349   Add sample_aspect_ratio field to AVFilterLink.
1350
1351 2011-02-10 - 12c14cd - lavf 52.99.0 - AVStream.disposition
1352   Add AV_DISPOSITION_HEARING_IMPAIRED and AV_DISPOSITION_VISUAL_IMPAIRED.
1353
1354 2011-02-09 - 5592734 - lavc 52.112.0 - avcodec_thread_init()
1355   Deprecate avcodec_thread_init()/avcodec_thread_free() use; instead
1356   set thread_count before calling avcodec_open.
1357
1358 2011-02-09 - 778b08a - lavc 52.111.0 - threading API
1359   Add CODEC_CAP_FRAME_THREADS with new restrictions on get_buffer()/
1360   release_buffer()/draw_horiz_band() callbacks for appropriate codecs.
1361   Add thread_type and active_thread_type fields to AVCodecContext.
1362
1363 2011-02-08 - 3940caa - lavf 52.98.0 - av_probe_input_buffer
1364   Add av_probe_input_buffer() to avformat.h for probing format from a
1365   ByteIOContext.
1366
1367 2011-02-06 - fe174fc - lavf 52.97.0 - avio.h
1368   Add flag for non-blocking protocols: URL_FLAG_NONBLOCK
1369
1370 2011-02-04 - f124b08 - lavf 52.96.0 - avformat_free_context()
1371   Add avformat_free_context() in avformat.h.
1372
1373 2011-02-03 - f5b82f4 - lavc 52.109.0 - add CODEC_ID_PRORES
1374   Add CODEC_ID_PRORES to avcodec.h.
1375
1376 2011-02-03 - fe9a3fb - lavc 52.109.0 - H.264 profile defines
1377   Add defines for H.264 * Constrained Baseline and Intra profiles
1378
1379 2011-02-02 - lavf 52.95.0
1380   * 50196a9 - add a new installed header version.h.
1381   * 4efd5cf, dccbd97, 93b78d1 - add several variants of public
1382     avio_{put,get}_str* functions.  Deprecate corresponding semi-public
1383     {put,get}_str*.
1384
1385 2011-02-02 - dfd2a00 - lavu 50.37.0 - log.h
1386   Make av_dlog public.
1387
1388 2011-01-15 - a242ac3 - lavfi 1.74.0 - AVFilterBufferRefAudioProps
1389   Rename AVFilterBufferRefAudioProps.samples_nb to nb_samples.
1390
1391 2011-01-14 - 7f88a5b - lavf 52.93.0 - av_metadata_copy()
1392   Add av_metadata_copy() in avformat.h.
1393
1394 2011-01-07 - 81c623f - lavc 52.107.0 - deprecate reordered_opaque
1395   Deprecate reordered_opaque in favor of pkt_pts/dts.
1396
1397 2011-01-07 - 1919fea - lavc 52.106.0 - pkt_dts
1398   Add pkt_dts to AVFrame, this will in the future allow multithreading decoders
1399   to not mess up dts.
1400
1401 2011-01-07 - 393cbb9 - lavc 52.105.0 - pkt_pts
1402   Add pkt_pts to AVFrame.
1403
1404 2011-01-07 - 060ec0a - lavc 52.104.0 - av_get_profile_name()
1405   Add av_get_profile_name to libavcodec/avcodec.h.
1406
1407 2010-12-27 - 0ccabee - lavfi 1.71.0 - AV_PERM_NEG_LINESIZES
1408   Add AV_PERM_NEG_LINESIZES in avfilter.h.
1409
1410 2010-12-27 - 9128ae0 - lavf 52.91.0 - av_find_best_stream()
1411   Add av_find_best_stream to libavformat/avformat.h.
1412
1413 2010-12-27 - 107a7e3 - lavf 52.90.0
1414   Add AVFMT_NOSTREAMS flag for formats with no streams,
1415   like e.g. text metadata.
1416
1417 2010-12-22 - 0328b9e - lavu 50.36.0 - file.h
1418   Add functions av_file_map() and av_file_unmap() in file.h.
1419
1420 2010-12-19 - 0bc55f5 - lavu 50.35.0 - error.h
1421   Add "not found" error codes:
1422   AVERROR_DEMUXER_NOT_FOUND
1423   AVERROR_MUXER_NOT_FOUND
1424   AVERROR_DECODER_NOT_FOUND
1425   AVERROR_ENCODER_NOT_FOUND
1426   AVERROR_PROTOCOL_NOT_FOUND
1427   AVERROR_FILTER_NOT_FOUND
1428   AVERROR_BSF_NOT_FOUND
1429   AVERROR_STREAM_NOT_FOUND
1430
1431 2010-12-09 - c61cdd0 - lavcore 0.16.0 - avcore.h
1432   Move AV_NOPTS_VALUE, AV_TIME_BASE, AV_TIME_BASE_Q symbols from
1433   avcodec.h to avcore.h.
1434
1435 2010-12-04 - 16cfc96 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES
1436   Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h.
1437
1438 2010-12-04 - bb4afa1 - lavu 50.34.0 - av_get_pix_fmt_string()
1439   Deprecate avcodec_pix_fmt_string() in favor of
1440   pixdesc.h/av_get_pix_fmt_string().
1441
1442 2010-12-04 - 4da12e3 - lavcore 0.15.0 - av_image_alloc()
1443   Add av_image_alloc() to libavcore/imgutils.h.
1444
1445 2010-12-02 - 037be76 - lavfi 1.67.0 - avfilter_graph_create_filter()
1446   Add function avfilter_graph_create_filter() in avfiltergraph.h.
1447
1448 2010-11-25 - 4723bc2 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays()
1449   Add function avfilter_get_video_buffer_ref_from_arrays() in
1450   avfilter.h.
1451
1452 2010-11-21 - 176a615 - lavcore 0.14.0 - audioconvert.h
1453   Add a public audio channel API in audioconvert.h, and deprecate the
1454   corresponding functions in libavcodec:
1455   avcodec_get_channel_name()
1456   avcodec_get_channel_layout()
1457   avcodec_get_channel_layout_string()
1458   avcodec_channel_layout_num_channels()
1459   and the CH_* macros defined in libavcodec/avcodec.h.
1460
1461 2010-11-21 - 6bfc268 - lavf 52.85.0 - avformat.h
1462   Add av_append_packet().
1463
1464 2010-11-21 - a08d918 - lavc 52.97.0 - avcodec.h
1465   Add av_grow_packet().
1466
1467 2010-11-17 - 0985e1a - lavcore 0.13.0 - parseutils.h
1468   Add av_parse_color() declared in libavcore/parseutils.h.
1469
1470 2010-11-13 - cb2c971 - lavc 52.95.0 - AVCodecContext
1471   Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size
1472   fields.
1473
1474 2010-11-13 - 5aaea02 - lavfi 1.62.0 - avfiltergraph.h
1475   Make avfiltergraph.h public.
1476
1477 2010-11-13 - 4fcbb2a - lavfi 1.61.0 - avfiltergraph.h
1478   Remove declarations from avfiltergraph.h for the functions:
1479   avfilter_graph_check_validity()
1480   avfilter_graph_config_links()
1481   avfilter_graph_config_formats()
1482   which are now internal.
1483   Use avfilter_graph_config() instead.
1484
1485 2010-11-08 - d2af720 - lavu 50.33.0 - eval.h
1486   Deprecate functions:
1487   av_parse_and_eval_expr(),
1488   av_parse_expr(),
1489   av_eval_expr(),
1490   av_free_expr(),
1491   in favor of the functions:
1492   av_expr_parse_and_eval(),
1493   av_expr_parse(),
1494   av_expr_eval(),
1495   av_expr_free().
1496
1497 2010-11-08 - 24de0ed - lavfi 1.59.0 - avfilter_free()
1498   Rename avfilter_destroy() to avfilter_free().
1499   This change breaks libavfilter API/ABI.
1500
1501 2010-11-07 - 1e80a0e - lavfi 1.58.0 - avfiltergraph.h
1502   Remove graphparser.h header, move AVFilterInOut and
1503   avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h.
1504
1505 2010-11-07 - 7313132 - lavfi 1.57.0 - AVFilterInOut
1506   Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx.
1507   This change breaks libavfilter API.
1508
1509 2010-11-04 - 97dd1e4 - lavfi 1.56.0 - avfilter_graph_free()
1510   Rename avfilter_graph_destroy() to avfilter_graph_free().
1511   This change breaks libavfilter API/ABI.
1512
1513 2010-11-04 - e15aeea - lavfi 1.55.0 - avfilter_graph_alloc()
1514   Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h.
1515
1516 2010-11-02 - 6f84cd1 - lavcore 0.12.0 - av_get_bits_per_sample_fmt()
1517   Add av_get_bits_per_sample_fmt() to libavcore/samplefmt.h and
1518   deprecate av_get_bits_per_sample_format().
1519
1520 2010-11-02 - d63e456 - lavcore 0.11.0 - samplefmt.h
1521   Add sample format functions in libavcore/samplefmt.h:
1522   av_get_sample_fmt_name(),
1523   av_get_sample_fmt(),
1524   av_get_sample_fmt_string(),
1525   and deprecate the corresponding libavcodec/audioconvert.h functions:
1526   avcodec_get_sample_fmt_name(),
1527   avcodec_get_sample_fmt(),
1528   avcodec_sample_fmt_string().
1529
1530 2010-11-02 - 262d1c5 - lavcore 0.10.0 - samplefmt.h
1531   Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum
1532   SampleFormat.
1533
1534 2010-10-16 - 2a24df9 - lavfi 1.52.0 - avfilter_graph_config()
1535   Add the function avfilter_graph_config() in avfiltergraph.h.
1536
1537 2010-10-15 - 03700d3 - lavf 52.83.0 - metadata API
1538   Change demuxers to export metadata in generic format and
1539   muxers to accept generic format. Deprecate the public
1540   conversion API.
1541
1542 2010-10-10 - 867ae7a - lavfi 1.49.0 - AVFilterLink.time_base
1543   Add time_base field to AVFilterLink.
1544
1545 2010-09-27 - c85eef4 - lavu 50.31.0 - av_set_options_string()
1546   Move av_set_options_string() from libavfilter/parseutils.h to
1547   libavutil/opt.h.
1548
1549 2010-09-27 - acc0490 - lavfi 1.47.0 - AVFilterLink
1550   Make the AVFilterLink fields srcpad and dstpad store the pointers to
1551   the source and destination pads, rather than their indexes.
1552
1553 2010-09-27 - 372e288 - lavu 50.30.0 - av_get_token()
1554   Move av_get_token() from libavfilter/parseutils.h to
1555   libavutil/avstring.h.
1556
1557 2010-09-26 - 635d4ae - lsws 0.12.0 - swscale.h
1558   Add the functions sws_alloc_context() and sws_init_context().
1559
1560 2010-09-26 - 6ed0404 - lavu 50.29.0 - opt.h
1561   Move libavcodec/opt.h to libavutil/opt.h.
1562
1563 2010-09-24 - 1c1c80f - lavu 50.28.0 - av_log_set_flags()
1564   Default of av_log() changed due to many problems to the old no repeat
1565   detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before
1566   enabling it for your app!.
1567
1568 2010-09-24 - f66eb58 - lavc 52.90.0 - av_opt_show2()
1569   Deprecate av_opt_show() in favor or av_opt_show2().
1570
1571 2010-09-14 - bc6f0af - lavu 50.27.0 - av_popcount()
1572   Add av_popcount() to libavutil/common.h.
1573
1574 2010-09-08 - c6c98d0 - lavu 50.26.0 - av_get_cpu_flags()
1575   Add av_get_cpu_flags().
1576
1577 2010-09-07 - 34017fd - lavcore 0.9.0 - av_image_copy()
1578   Add av_image_copy().
1579
1580 2010-09-07 - 9686abb - lavcore 0.8.0 - av_image_copy_plane()
1581   Add av_image_copy_plane().
1582
1583 2010-09-07 - 9b7269e - lavcore 0.7.0 - imgutils.h
1584   Adopt hierarchical scheme for the imgutils.h function names,
1585   deprecate the old names.
1586
1587 2010-09-04 - 7160bb7 - lavu 50.25.0 - AV_CPU_FLAG_*
1588   Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
1589   of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
1590
1591 2010-08-26 - 5da19b5 - lavc 52.87.0 - avcodec_get_channel_layout()
1592   Add avcodec_get_channel_layout() in audioconvert.h.
1593
1594 2010-08-20 - e344336 - lavcore 0.6.0 - av_fill_image_max_pixsteps()
1595   Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().
1596
1597 2010-08-18 - a6ddf8b - lavcore 0.5.0 - av_fill_image_max_pixstep()
1598   Add av_fill_image_max_pixstep() in imgutils.h.
1599
1600 2010-08-17 - 4f2d2e4 - lavu 50.24.0 - AV_NE()
1601   Add the AV_NE macro.
1602
1603 2010-08-17 - ad2c950 - lavfi 1.36.0 - audio framework
1604   Implement AVFilterBufferRefAudioProps struct for audio properties,
1605   get_audio_buffer(), filter_samples() functions and related changes.
1606
1607 2010-08-12 - 81c1eca - lavcore 0.4.0 - av_get_image_linesize()
1608   Add av_get_image_linesize() in imgutils.h.
1609
1610 2010-08-11 - c1db7bf - lavfi 1.34.0 - AVFilterBufferRef
1611   Resize data and linesize arrays in AVFilterBufferRef to 8.
1612
1613   This change breaks libavfilter API/ABI.
1614
1615 2010-08-11 - 9f08d80 - lavc 52.85.0 - av_picture_data_copy()
1616   Add av_picture_data_copy in avcodec.h.
1617
1618 2010-08-11 - 84c0386 - lavfi 1.33.0 - avfilter_open()
1619   Change avfilter_open() signature:
1620   AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
1621   int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
1622
1623   This change breaks libavfilter API/ABI.
1624
1625 2010-08-11 - cc80caf - lavfi 1.32.0 - AVFilterBufferRef
1626   Add a type field to AVFilterBufferRef, and move video specific
1627   properties to AVFilterBufferRefVideoProps.
1628
1629   This change breaks libavfilter API/ABI.
1630
1631 2010-08-07 - 5d4890d - lavfi 1.31.0 - AVFilterLink
1632   Rename AVFilterLink fields:
1633   AVFilterLink.srcpic    ->  AVFilterLink.src_buf
1634   AVFilterLink.cur_pic   ->  AVFilterLink.cur_buf
1635   AVFilterLink.outpic    ->  AVFilterLink.out_buf
1636
1637 2010-08-07 - 7fce481 - lavfi 1.30.0
1638   Rename functions and fields:
1639   avfilter_(un)ref_pic       -> avfilter_(un)ref_buffer
1640   avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
1641   AVFilterBufferRef.pic      -> AVFilterBufferRef.buffer
1642
1643 2010-08-07 - ecc8dad - lavfi 1.29.0 - AVFilterBufferRef
1644   Rename AVFilterPicRef to AVFilterBufferRef.
1645
1646 2010-08-07 - d54e094 - lavfi 1.28.0 - AVFilterBuffer
1647   Move format field from AVFilterBuffer to AVFilterPicRef.
1648
1649 2010-08-06 - bf176f5 - lavcore 0.3.0 - av_check_image_size()
1650   Deprecate avcodec_check_dimensions() in favor of the function
1651   av_check_image_size() defined in libavcore/imgutils.h.
1652
1653 2010-07-30 - 56b5e9d - lavfi 1.27.0 - AVFilterBuffer
1654   Increase size of the arrays AVFilterBuffer.data and
1655   AVFilterBuffer.linesize from 4 to 8.
1656
1657   This change breaks libavfilter ABI.
1658
1659 2010-07-29 - e7bd48a - lavcore 0.2.0 - imgutils.h
1660   Add functions av_fill_image_linesizes() and
1661   av_fill_image_pointers(), declared in libavcore/imgutils.h.
1662
1663 2010-07-27 - 126b638 - lavcore 0.1.0 - parseutils.h
1664   Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()
1665   defined in libavcodec in favor of the newly added functions
1666   av_parse_video_size() and av_parse_video_rate() declared in
1667   libavcore/parseutils.h.
1668
1669 2010-07-23 - 4485247 - lavu 50.23.0 - mathematics.h
1670   Add the M_PHI constant definition.
1671
1672 2010-07-22 - bdab614 - lavfi 1.26.0 - media format generalization
1673   Add a type field to AVFilterLink.
1674
1675   Change the field types:
1676   enum PixelFormat format   -> int format   in AVFilterBuffer
1677   enum PixelFormat *formats -> int *formats in AVFilterFormats
1678   enum PixelFormat *format  -> int format   in AVFilterLink
1679
1680   Change the function signatures:
1681   AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
1682   AVFilterFormats *avfilter_make_format_list(const int *fmts);
1683
1684   int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
1685   int avfilter_add_format    (AVFilterFormats **avff, int fmt);
1686
1687   AVFilterFormats *avfilter_all_colorspaces(void); ->
1688   AVFilterFormats *avfilter_all_formats    (enum AVMediaType type);
1689
1690   This change breaks libavfilter API/ABI.
1691
1692 2010-07-21 - aac6ca6 - lavcore 0.0.0
1693   Add libavcore.
1694
1695 2010-07-17 - b5c582f - lavfi 1.25.0 - AVFilterBuffer
1696   Remove w and h fields from AVFilterBuffer.
1697
1698 2010-07-17 - f0d77b2 - lavfi 1.24.0 - AVFilterBuffer
1699   Rename AVFilterPic to AVFilterBuffer.
1700
1701 2010-07-17 - 57fe80f - lavf 52.74.0 - url_fskip()
1702   Make url_fskip() return an int error code instead of void.
1703
1704 2010-07-11 - 23940f1 - lavc 52.83.0
1705   Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.
1706   Add AVLPCType enum.
1707   Deprecate AVCodecContext.use_lpc.
1708
1709 2010-07-11 - e1d7c88 - lavc 52.82.0 - avsubtitle_free()
1710   Add a function for free the contents of a AVSubtitle generated by
1711   avcodec_decode_subtitle.
1712
1713 2010-07-11 - b91d08f - lavu 50.22.0 - bswap.h and intreadwrite.h
1714   Make the bswap.h and intreadwrite.h API public.
1715
1716 2010-07-08 - ce1cd1c - lavu 50.21.0 - pixdesc.h
1717   Rename read/write_line() to av_read/write_image_line().
1718
1719 2010-07-07 - 4d508e4 - lavfi 1.21.0 - avfilter_copy_picref_props()
1720   Add avfilter_copy_picref_props().
1721
1722 2010-07-03 - 2d525ef - lavc 52.79.0
1723   Add FF_COMPLIANCE_UNOFFICIAL and change all instances of
1724   FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.
1725
1726 2010-07-02 - 89eec74 - lavu 50.20.0 - lfg.h
1727   Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through
1728   lfg.h.
1729
1730 2010-06-28 - a52e2c3 - lavfi 1.20.1 - av_parse_color()
1731   Extend av_parse_color() syntax, make it accept an alpha value specifier and
1732   set the alpha value to 255 by default.
1733
1734 2010-06-22 - 735cf6b - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class
1735   Add priv_data_size and priv_data_class to URLProtocol.
1736
1737 2010-06-22 - ffbb289 - lavf 52.70.0 - url_alloc(), url_connect()
1738   Add url_alloc() and url_connect().
1739
1740 2010-06-22 - 9b07a2d - lavf 52.69.0 - av_register_protocol2()
1741   Add av_register_protocol2(), deprecating av_register_protocol().
1742
1743 2010-06-09 - 65db058 - lavu 50.19.0 - av_compare_mod()
1744   Add av_compare_mod() to libavutil/mathematics.h.
1745
1746 2010-06-05 - 0b99215 - lavu 50.18.0 - eval API
1747   Make the eval API public.
1748
1749 2010-06-04 - 31878fc - lavu 50.17.0 - AV_BASE64_SIZE
1750   Add AV_BASE64_SIZE() macro.
1751
1752 2010-06-02 - 7e566bb - lavc 52.73.0 - av_get_codec_tag_string()
1753   Add av_get_codec_tag_string().
1754
1755 2010-06-01 - 2b99142 - lsws 0.11.0 - convertPalette API
1756   Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
1757
1758 2010-05-26 - 93ebfee - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
1759   Add CODEC_CAP_EXPERIMENTAL flag.
1760   NOTE: this was backported to 0.6
1761
1762 2010-05-23 - 9977863 - lavu 50.16.0 - av_get_random_seed()
1763   Add av_get_random_seed().
1764
1765 2010-05-18 - 796ac23 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
1766   Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.
1767   NOTE: this was backported to 0.6
1768
1769 2010-05-09 - b6bc205 - lavfi 1.20.0 - AVFilterPicRef
1770   Add interlaced and top_field_first fields to AVFilterPicRef.
1771
1772 ------------------------------8<-------------------------------------
1773                    0.6 branch was cut here
1774 ----------------------------->8--------------------------------------
1775
1776 2010-05-01 - 8e2ee18 - lavf 52.62.0 - probe function
1777   Add av_probe_input_format2 to API, it allows ignoring probe
1778   results below given score and returns the actual probe score.
1779
1780 2010-04-01 - 3dd6180 - lavf 52.61.0 - metadata API
1781   Add a flag for av_metadata_set2() to disable overwriting of
1782   existing tags.
1783
1784 2010-04-01 - 0fb49b5 - lavc 52.66.0
1785   Add avcodec_get_edge_width().
1786
1787 2010-03-31 - d103218 - lavc 52.65.0
1788   Add avcodec_copy_context().
1789
1790 2010-03-31 - 1a70d12 - lavf 52.60.0 - av_match_ext()
1791   Make av_match_ext() public.
1792
1793 2010-03-31 - 1149150 - lavu 50.14.0 - AVMediaType
1794   Move AVMediaType enum from libavcodec to libavutil.
1795
1796 2010-03-31 - 72415b2 - lavc 52.64.0 - AVMediaType
1797   Define AVMediaType enum, and use it instead of enum CodecType, which
1798   is deprecated and will be dropped at the next major bump.
1799
1800 2010-03-25 - 8795823 - lavu 50.13.0 - av_strerror()
1801   Implement av_strerror().
1802
1803 2010-03-23 - e1484eb - lavc 52.60.0 - av_dct_init()
1804   Support DCT-I and DST-I.
1805
1806 2010-03-15 - b8819c8 - lavf 52.56.0 - AVFormatContext.start_time_realtime
1807   Add AVFormatContext.start_time_realtime field.
1808
1809 2010-03-13 - 5bb5c1d - lavfi 1.18.0 - AVFilterPicRef.pos
1810   Add AVFilterPicRef.pos field.
1811
1812 2010-03-13 - 60c144f - lavu 50.12.0 - error.h
1813   Move error code definitions from libavcodec/avcodec.h to
1814   the new public header libavutil/error.h.
1815
1816 2010-03-07 - c709483 - lavc 52.56.0 - avfft.h
1817   Add public FFT interface.
1818
1819 2010-03-06 - ac6ef86 - lavu 50.11.0 - av_stristr()
1820   Add av_stristr().
1821
1822 2010-03-03 - 4b83fc0 - lavu 50.10.0 - av_tree_enumerate()
1823   Add av_tree_enumerate().
1824
1825 2010-02-07 - b687c1a - lavu 50.9.0 - av_compare_ts()
1826   Add av_compare_ts().
1827
1828 2010-02-05 - 3f3dc76 - lsws 0.10.0 - sws_getCoefficients()
1829   Add sws_getCoefficients().
1830
1831 2010-02-01 - ca76a11 - lavf 52.50.0 - metadata API
1832   Add a list of generic tag names, change 'author' -> 'artist',
1833   'year' -> 'date'.
1834
1835 2010-01-30 - 80a07f6 - lavu 50.8.0 - av_get_pix_fmt()
1836   Add av_get_pix_fmt().
1837
1838 2010-01-21 - 01cc47d - lsws 0.9.0 - sws_scale()
1839   Change constness attributes of sws_scale() parameters.
1840
1841 2010-01-10 - 3fb8e77 - lavfi 1.15.0 - avfilter_graph_config_links()
1842   Add a log_ctx parameter to avfilter_graph_config_links().
1843
1844 2010-01-07 - 8e9767f - lsws 0.8.0 - sws_isSupported{In,Out}put()
1845   Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
1846
1847 2010-01-06 - c1d662f - lavfi 1.14.0 - avfilter_add_colorspace()
1848   Change the avfilter_add_colorspace() signature, make it accept an
1849   (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
1850
1851 2010-01-03 - 4fd1f18 - lavfi 1.13.0 - avfilter_add_colorspace()
1852   Add avfilter_add_colorspace().
1853
1854 2010-01-02 - 8eb631f - lavf 52.46.0 - av_match_ext()
1855   Add av_match_ext(), it should be used in place of match_ext().
1856
1857 2010-01-01 - a1f547b - lavf 52.45.0 - av_guess_format()
1858   Add av_guess_format(), it should be used in place of guess_format().
1859
1860 2009-12-13 - a181981 - lavf 52.43.0 - metadata API
1861   Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and
1862   AV_METADATA_DONT_STRDUP_VAL.
1863
1864 2009-12-13 - 277c733 - lavu 50.7.0 - avstring.h API
1865   Add av_d2str().
1866
1867 2009-12-13 - 02b398e - lavc 52.42.0 - AVStream
1868   Add avg_frame_rate.
1869
1870 2009-12-12 - 3ba69a1 - lavu 50.6.0 - av_bmg_next()
1871   Introduce the av_bmg_next() function.
1872
1873 2009-12-05 - a13a543 - lavfi 1.12.0 - avfilter_draw_slice()
1874   Add a slice_dir parameter to avfilter_draw_slice().
1875
1876 2009-11-26 - 4cc3f6a - lavfi 1.11.0 - AVFilter
1877   Remove the next field from AVFilter, this is not anymore required.
1878
1879 2009-11-25 - 1433c4a - lavfi 1.10.0 - avfilter_next()
1880   Introduce the avfilter_next() function.
1881
1882 2009-11-25 - 86a60fa - lavfi 1.9.0 - avfilter_register()
1883   Change the signature of avfilter_register() to make it return an
1884   int. This is required since now the registration operation may fail.
1885
1886 2009-11-25 - 74a0059 - lavu 50.5.0 - pixdesc.h API
1887   Make the pixdesc.h API public.
1888
1889 2009-10-27 - 243110f - lavfi 1.5.0 - AVFilter.next
1890   Add a next field to AVFilter, this is used for simplifying the
1891   registration and management of the registered filters.
1892
1893 2009-10-23 - cccd292 - lavfi 1.4.1 - AVFilter.description
1894   Add a description field to AVFilter.
1895
1896 2009-10-19 - 6b5dc05 - lavfi 1.3.0 - avfilter_make_format_list()
1897   Change the interface of avfilter_make_format_list() from
1898   avfilter_make_format_list(int n, ...) to
1899   avfilter_make_format_list(enum PixelFormat *pix_fmts).
1900
1901 2009-10-18 - 0eb4ff9 - lavfi 1.0.0 - avfilter_get_video_buffer()
1902   Make avfilter_get_video_buffer() recursive and add the w and h
1903   parameters to it.
1904
1905 2009-10-07 - 46c40e4 - lavfi 0.5.1 - AVFilterPic
1906   Add w and h fields to AVFilterPic.
1907
1908 2009-06-22 - 92400be - lavf 52.34.1 - AVFormatContext.packet_size
1909   This is now an unsigned int instead of a signed int.
1910
1911 2009-06-19 - a4276ba - lavc 52.32.0 - AVSubtitle.pts
1912   Add a pts field to AVSubtitle which gives the subtitle packet pts
1913   in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
1914   not work right without this.
1915
1916 2009-06-03 - 8f3f2e0 - lavc 52.30.2 - AV_PKT_FLAG_KEY
1917   PKT_FLAG_KEY has been deprecated and will be dropped at the next
1918   major version. Use AV_PKT_FLAG_KEY instead.
1919
1920 2009-06-01 - f988ce6 - lavc 52.30.0 - av_lockmgr_register()
1921   av_lockmgr_register() can be used to register a callback function
1922   that lavc (and in the future, libraries that depend on lavc) can use
1923   to implement mutexes. The application should provide a callback function
1924   that implements the AV_LOCK_* operations described in avcodec.h.
1925   When the lock manager is registered, FFmpeg is guaranteed to behave
1926   correctly in a multi-threaded application.
1927
1928 2009-04-30 - ce1d9c8 - lavc 52.28.0 - av_free_packet()
1929   av_free_packet() is no longer an inline function. It is now exported.
1930
1931 2009-04-11 - 80d403f - lavc 52.25.0 - deprecate av_destruct_packet_nofree()
1932   Please use NULL instead. This has been supported since r16506
1933   (lavf > 52.23.1, lavc > 52.10.0).
1934
1935 2009-04-07 - 7a00bba - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
1936   The old decoding functions are deprecated, all new code should use the
1937   new functions avcodec_decode_video2(), avcodec_decode_audio3() and
1938   avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
1939   argument instead of a const uint8_t *buf / int buf_size pair.
1940
1941 2009-04-03 - 7b09db3 - lavu 50.3.0 - av_fifo_space()
1942   Introduce the av_fifo_space() function.
1943
1944 2009-04-02 - fabd246 - lavc 52.23.0 - AVPacket
1945   Move AVPacket declaration from libavformat/avformat.h to
1946   libavcodec/avcodec.h.
1947
1948 2009-03-22 - 6e08ca9 - lavu 50.2.0 - RGB32 pixel formats
1949   Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
1950   PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
1951   Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
1952   PIX_FMT_BGR32_1 are now macros.
1953   avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
1954   Re-sort the enum PixelFormat list accordingly.
1955   This change breaks API/ABI backward compatibility.
1956
1957 2009-03-22 - f82674e - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
1958   Add the enum PixelFormat values:
1959   PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
1960   PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
1961
1962 2009-03-21 - ee6624e - lavu 50.0.0  - av_random*
1963   The Mersenne Twister PRNG implemented through the av_random* functions
1964   was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
1965   instead.
1966
1967 2009-03-08 - 41dd680 - lavu 50.0.0  - AVFifoBuffer
1968   av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
1969   and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
1970   and av_fifo_realloc2.
1971   In addition, the order of the function arguments of av_fifo_generic_read
1972   was changed to match av_fifo_generic_write.
1973   The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
1974   applications, they may not use sizeof() or directly access members.
1975
1976 2009-03-01 - ec26457 - lavf 52.31.0 - Generic metadata API
1977   Introduce a new metadata API (see av_metadata_get() and friends).
1978   The old API is now deprecated and should not be used anymore. This especially
1979   includes the following structure fields:
1980     - AVFormatContext.title
1981     - AVFormatContext.author
1982     - AVFormatContext.copyright
1983     - AVFormatContext.comment
1984     - AVFormatContext.album
1985     - AVFormatContext.year
1986     - AVFormatContext.track
1987     - AVFormatContext.genre
1988     - AVStream.language
1989     - AVStream.filename
1990     - AVProgram.provider_name
1991     - AVProgram.name
1992     - AVChapter.title