APIchanges

Never assume the API of libav* to be stable unless at least 1 month has passed
since the last major version increase or the API was added.

The last version increases were:
libavcodec:    2015-08-28
libavdevice:   2015-08-28
libavfilter:   2015-08-28
libavformat:   2015-08-28
libavresample: 2015-08-28
libpostproc:   2015-08-28
libswresample: 2015-08-28
libswscale:    2015-08-28
libavutil:     2015-08-28


API changes, most recent first:

2015-10-15 - xxxxxxx - lavf 57.4.100
  Remove the latm demuxer that was a duplicate of the loas demuxer.

2015-10-14 - xxxxxxx - lavu 55.4.100 / lavu 55.2.0 - dict.h
  Change return type of av_dict_copy() from void to int, so that a proper
  error code can be reported.

2015-09-29 - xxxxxxx - lavc 57.3.100 / lavc 57.2.0 - avcodec.h
  Change type of AVPacket.duration from int to int64_t.

2015-09-17 - xxxxxxx - lavc 57.3.100 / lavc 57.2.0 - d3d11va.h
  Add av_d3d11va_alloc_context(). This function must from now on be used for
  allocating AVD3D11VAContext.

2015-09-15 - lavf 57.2.100 - avformat.h
  probesize and max_analyze_duration switched to 64bit, both
  are only accessible through AVOptions

2015-09-15 - lavf 57.1.100 - avformat.h
  bit_rate was changed to 64bit, make sure you update any
  printf() or other type sensitive code

2015-09-15 - lavc 57.2.100 - avcodec.h
  bit_rate/rc_max_rate/rc_min_rate were changed to 64bit, make sure you update
  any printf() or other type sensitive code

2015-xx-xx - lavu 55.0.100 / lavu 55.0.0
  xxxxxxx - Change type of AVPixFmtDescriptor.flags from uint8_t to uint64_t.
  xxxxxxx - Change type of AVComponentDescriptor fields from uint16_t to int
            and drop bit packing.
  xxxxxxx - Add step, offset, and depth to AVComponentDescriptor to replace
            the deprecated step_minus1, offset_plus1, and depth_minus1.

-------- 8< --------- FFmpeg 2.8 was cut here -------- 8< ---------

2015-08-27 - 1dd854e1 - lavc 56.58.100 - vaapi.h
  Deprecate old VA-API context (vaapi_context) fields that were only
  set and used by libavcodec. They are all managed internally now.

2015-08-19 - 9f8e57ef - lavu 54.31.100 - pixfmt.h
  Add a unique pixel format for VA-API (AV_PIX_FMT_VAAPI) that
  indicates the nature of the underlying storage: a VA surface. This
  yields the same value as AV_PIX_FMT_VAAPI_VLD.
  Deprecate old VA-API related pixel formats: AV_PIX_FMT_VAAPI_MOCO,
  AV_PIX_FMT_VAAPI_IDCT, AV_PIX_FMT_VAAPI_VLD.

2015-08-02 - lavu 54.30.100 / 54.17.0
  9ed59f1 / 7a7df34c -  Add av_blowfish_alloc().
  a130ec9 / ae365453 -  Add av_rc4_alloc().
  9ca1997 / 5d8bea3b -  Add av_xtea_alloc().
  3cf08e9 / d9e8b47e -  Add av_des_alloc().

2015-07-27 - lavc 56.56.100 / 56.35.0 - avcodec.h
  94d68a4 / 7c6eb0a1 - Rename CODEC_FLAG* defines to AV_CODEC_FLAG*.
  444e987 / def97856 - Rename CODEC_CAP_* defines to AV_CODEC_CAP_*.
  29d147c / 059a9348 - Rename FF_INPUT_BUFFER_PADDING_SIZE and FF_MIN_BUFFER_SIZE
              to AV_INPUT_BUFFER_PADDING_SIZE and AV_INPUT_BUFFER_MIN_SIZE.

2015-07-22 - c40ecff - lavc 56.51.100 - avcodec.h
  Add AV_PKT_DATA_QUALITY_STATS to export the quality value, PSNR, and pict_type
  of an AVPacket.

2015-07-16 - 8dad213 - lavc 56.49.100
  Add av_codec_get_codec_properties(), FF_CODEC_PROPERTY_LOSSLESS
  and FF_CODEC_PROPERTY_CLOSED_CAPTIONS

2015-07-03 - d563e13 / 83212943 - lavu 54.28.100 / 56.15.0
  Add av_version_info().

-------- 8< --------- FFmpeg 2.7 was cut here -------- 8< ---------

2015-06-04 - cc17b43 - lswr  1.2.100
  Add swr_get_out_samples()

2015-05-27 - c312bfa - lavu 54.26.100 - cpu.h
  Add AV_CPU_FLAG_AVXSLOW.

2015-05-26 - 1fb9b2a - lavu 54.25.100 - rational.h
  Add av_q2intfloat().

2015-05-13 - cc48409 / e7c5e17 - lavc 56.39.100 / 56.23.0
  Add av_vda_default_init2.

2015-05-11 - 541d75f - lavf 56.33.100 - avformat.h
  Add AVOpenCallback AVFormatContext.open_cb

2015-05-07 - a7dd933 - 56.38.100 - avcodec.h
  Add av_packet_side_data_name().

2015-05-07 - 01e59d4 - 56.37.102 - avcodec.h
  Add FF_PROFILE_VP9_2 and FF_PROFILE_VP9_3.

2015-05-04 - 079b7f6 - 56.37.100 - avcodec.h
  Add FF_PROFILE_VP9_0 and FF_PROFILE_VP9_1.

2015-04-22 - 748d481 - lavf 56.31.100 - avformat.h
  Add AVFMT_FLAG_FAST_SEEK flag. Some formats (initially mp3) use it to enable
  fast, but inaccurate seeking.

2015-04-20 - 8e8219e / c253340 - lavu 54.23.100 / 54.12.0 - log.h
  Add AV_LOG_TRACE for extremely verbose debugging.

2015-04-02 - 26e0e393 - lavf 56.29.100 - avio.h
  Add AVIODirEntryType.AVIO_ENTRY_SERVER.
  Add AVIODirEntryType.AVIO_ENTRY_SHARE.
  Add AVIODirEntryType.AVIO_ENTRY_WORKGROUP.

2015-03-31 - 3188696 - lavu 54.22.100 - avstring.h
  Add av_append_path_component()

2015-03-27 - 184084c - lavf 56.27.100 - avio.h url.h
  New directory listing API.

  Add AVIODirEntryType enum.
  Add AVIODirEntry, AVIODirContext structures.
  Add avio_open_dir(), avio_read_dir(), avio_close_dir(), avio_free_directory_entry().
  Add ff_alloc_dir_entry().
  Extend URLProtocol with url_open_dir(), url_read_dir(), url_close_dir().

2015-03-29 - 268ff17 / c484561 - lavu 54.21.100 / 54.10.0 - pixfmt.h
  Add AV_PIX_FMT_MMAL for MMAL hardware acceleration.

2015-03-19 - 11fe56c - 56.29.100 / lavc 56.22.0
  Add FF_PROFILE_DTS_EXPRESS.

-------- 8< --------- FFmpeg 2.6 was cut here -------- 8< ---------

2015-03-04 - cca4476 - lavf 56.25.100
  Add avformat_flush()

2015-03-03 - 81a9126 - lavf 56.24.100
  Add avio_put_str16be()

2015-02-19 - 560eb71 / 31d2039 - lavc 56.23.100 / 56.13.0
  Add width, height, coded_width, coded_height and format to
  AVCodecParserContext.

2015-02-19 - e375511 / 5b1d9ce - lavu 54.19.100 / 54.9.0
  Add AV_PIX_FMT_QSV for QSV hardware acceleration.

2015-02-14 - ba22295 - lavc 56.21.102
  Deprecate VIMA decoder.

2015-01-27 - 62a82c6 / 728685f - lavc 56.21.100 / 56.12.0, lavu 54.18.100 / 54.8.0 - avcodec.h, frame.h
  Add AV_PKT_DATA_AUDIO_SERVICE_TYPE and AV_FRAME_DATA_AUDIO_SERVICE_TYPE for
  storing the audio service type as side data.

2015-01-16 - a47c933 - lavf 56.19.100 - avformat.h
  Add data_codec and data_codec_id for storing codec of data stream

2015-01-11 - 007c33d - lavd 56.4.100 - avdevice.h
  Add avdevice_list_input_sources().
  Add avdevice_list_output_sinks().

2014-12-25 - d7aaeea / c220a60 - lavc 56.19.100 / 56.10.0 - vdpau.h
  Add av_vdpau_get_surface_parameters().

2014-12-25 - ddb9a24 / 6c99c92 - lavc 56.18.100 / 56.9.0 - avcodec.h
  Add AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH flag to av_vdpau_bind_context().

2014-12-25 - d16079a / 57b6704 - lavc 56.17.100 / 56.8.0 - avcodec.h
  Add AVCodecContext.sw_pix_fmt.

2014-12-04 - 6e9ac02 - lavc 56.14.100 - dv_profile.h
  Add av_dv_codec_profile2().

-------- 8< --------- FFmpeg 2.5 was cut here -------- 8< ---------

2014-11-21 - ab922f9 - lavu 54.15.100 - dict.h
   Add av_dict_get_string().

2014-11-18 - a54a51c - lavu 54.14.100 - float_dsp.h
  Add avpriv_float_dsp_alloc().

2014-11-16 - 6690d4c3 - lavf 56.13.100 - avformat.h
  Add AVStream.recommended_encoder_configuration with accessors.

2014-11-16 - bee5844d - lavu 54.13.100 - opt.h
  Add av_opt_serialize().

2014-11-16 - eec69332 - lavu 54.12.100 - opt.h
  Add av_opt_is_set_to_default().