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(FFmpeg)




Changelog for 3.1.7 version



Entries are sorted chronologically from oldest to youngest within each release,
releases are sorted from youngest to oldest.

version 3.1.7:
- avcodec/h264_slice: Clear ref_counts on redundant slices
- lavf/mov.c: Avoid heap allocation wrap in mov_read_uuid
- lavf/mov.c: Avoid heap allocation wrap in mov_read_hdlr
- avcodec/pictordec: Fix logic error
- ffserver_config: Setup codecpar in add_codec()
- avcodec/movtextdec: Fix decode_styl() cleanup
- lavf/matroskadec: fix is_keyframe for early Blocks
- configure: bump year
- avcodec/pngdec: Check trns more completely
- avcodec/interplayvideo: Move parameter change check up
- avcodec/dca_lbr: Fix off by 1 error in freq check
- avcodec/mjpegdec: Check for for the bitstream end in mjpeg_decode_scan_progressive_ac()
- avformat/flacdec: Check avio_read result when reading flac block header.
- avcodec/utils: correct align value for interplay
- avcodec/vp56: Check for the bitstream end, pass error codes on
- avcodec/mjpegdec: Check remaining bitstream in ljpeg_decode_yuv_scan()
- avcodec/pngdec: Fix off by 1 size in decode_zbuf()
- avcodec/omx: Do not pass negative value into av_malloc()
- avformat/avidec: skip odml master index chunks in avi_sync
- avcodec/mjpegdec: Check for rgb before flipping
- avutil/random_seed: Reduce the time needed on systems with very low precision clock()
- avutil/random_seed: Improve get_generic_seed() with higher precision clock()
- avformat/mp3dec: fix msan warning when verifying mpa header
- avformat/utils: Print verbose error message if stream count exceeds max_streams
- avformat/options_table: Set the default maximum number of streams to 1000
- pgssubdec: reset rle_data_len/rle_remaining_len on allocation error
- avutil: Add av_image_check_size2()
- avformat: Add max_streams option
- avcodec/ffv1enc: Allocate smaller packet if the worst case size cannot be allocated
- avcodec/mpeg4videodec: Fix undefined shifts in mpeg4_decode_sprite_trajectory()
- avformat/oggdec: Skip streams in duration correction that did not had their duration set.
- avcodec/ffv1enc: Fix size of first slice
- avfilter/vf_hwupload_cuda: Add min/max limits for the 'device' option
- configure: check for strtoull on msvc

version 3.1.6:
- configure: check for strtoull on msvc
- http: move chunk handling from http_read_stream() to http_buf_read().
- http: make length/offset-related variables unsigned.
- ffserver: Check chunk size
- Avoid using the term "file" and prefer "url" in some docs and comments
- avformat/rtmppkt: Check for packet size mismatches
- zmqsend: Initialize ret to 0
- avcodec/rawdec: check for side data before checking its size
- avcodec/flacdec: Fix undefined shift in decode_subframe()
- avcodec/get_bits: Fix get_sbits_long(0)
- avformat/ffmdec: Check media type for chunks
- avcodec/flacdec: Fix signed integer overflow in decode_subframe_fixed()
- avcodec/flacdsp_template: Fix undefined shift in flac_decorrelate_indep_c
- avformat/oggparsespeex: Check frames_per_packet and packet_size
- avformat/utils: Check start/end before computing duration in update_stream_timings()
- avcodec/flac_parser: Update nb_headers_buffered
- avformat/idroqdec: Check chunk_size for being too large
- avformat/utils: Fix type mismatch
- avformat/mpeg: Adjust vid probe threshold to correct mis-detection
- avcodec/rv40: Test remaining space in loop of get_dimension()
- avcodec/ituh263dec: Avoid spending a long time in slice sync
- avcodec/movtextdec: Add error message for tsmb_size check
- avcodec/movtextdec: Fix tsmb_size check==0 check
- avcodec/movtextdec: Fix potential integer overflow
- avcodec/sunrast: Fix input buffer pointer check
- avcodec/tscc:  Check side data size before use
- avcodec/rawdec: Check side data size before use
- avcodec/msvideo1: Check side data size before use
- avcodec/qpeg:  Check side data size before use
- avcodec/qtrle:  Check side data size before use
- avcodec/msrle:  Check side data size before use
- avcodec/kmvc:  Check side data size before use
- avcodec/idcinvideo: Check side data size before use
- avcodec/cinepak: Check side data size before use
- avcodec/8bps: Check side data size before use
- avformat/flvdec: Fix regression losing streams
- avcodec/dvdsubdec: Fix off by 1 error
- avformat/isom: Fix old API regression with exporting max bitrate
- avcodec/dvdsubdec: Fix buf_size check
- vp9: change order of operations in adapt_prob().
- avcodec/interplayvideo: Check side data size before use
- mss2: only use error correction for matching block counts
- softfloat: decrease MIN_EXP to cover full float range
- libopusdec: default to stereo for invalid number of channels
- flvdec: require need_context_update when changing codec id
- pgssubdec: only set w/h/linesize when allocating data
- sbgdec: prevent NULL pointer access
- rmdec: validate block alignment
- smacker: limit recursion depth of smacker_decode_bigtree
- mxfdec: fix NULL pointer dereference in mxf_read_packet_old
- ffmdec: validate codec parameters
- exr: reindent after previous commit
- exr: fix out-of-bounds read
- libschroedingerdec: fix leaking of framewithpts
- libschroedingerdec: don't produce empty frames
- softfloat: handle -INT_MAX correctly
- filmstripdec: correctly check image dimensions
- pnmdec: make sure v is capped by maxval
- smvjpegdec: make sure cur_frame is not negative
- icodec: correctly check avio_read return value
- dvbsubdec: fix division by zero in compute_default_clut
- proresdec_lgpl: explicitly check coff[3] against slice_data_size
- escape124: reject codebook size 0
- icodec: add ico_read_close to fix leaking ico->images
- icodec: fix leaking pkt on error
- mpegts: prevent division by zero
- matroskadec: fix NULL pointer dereference in webm_dash_manifest_read_header
- mpegaudio_parser: don't return AVERROR_PATCHWELCOME
- mxfdec: fix NULL pointer dereference
- lzf: update pointer p after realloc
- diracdec: check return code of get_buffer_with_edge
- ppc: pixblockdsp: do unaligned block accesses correctly again
- interplayacm: increase bitstream buffer size by AV_INPUT_BUFFER_PADDING_SIZE
- interplayacm: validate number of channels
- interplayacm: check for too large b
- mpeg12dec: unref discarded picture from extradata
- cavsdec: unref frame before referencing again
- dcstr: fix division by zero
- aiff: check block_align in aiff_read_packet
- rsd: limit number of channels
- avformat: prevent triggering request_probe assert in ff_read_packet
- westwood_aud: prevent division by zero
- astdec: fix division by zero
- aiffdec: fix division by zero
- avcodec/avpacket: fix leak on realloc in av_packet_add_side_data()

version 3.1.5:
- avformat/mxfdec: Check size to avoid integer overflow in mxf_read_utf16_string()
- avcodec/mpegvideo_enc: Clear mmx state in ff_mpv_reallocate_putbitbuffer()
- avcodec/utils: Clear MMX state before returning from avcodec_default_execute*()
- doc/examples/demuxing_decoding: Drop AVFrame->pts use
- libopenjpegenc: fix out-of-bounds reads when filling the edges
- libopenjpegenc: stop reusing image data buffer for openjpeg 2
- configure: fix detection of libopenjpeg
- doc: fix various typos and grammar errors
- avformat/utils: Update codec_id before using it in the parser init
- cmdutils: fix typos
- lavfi: fix typos
- lavc: fix typos
- tools: fix grammar error
- ffmpeg: remove unused and errorneous AVFrame timestamp check
- Support for MIPS cpu P6600
- avutil/mips/generic_macros_msa: rename macro variable which causes segfault for mips r6

version 3.1.4:
- avformat/avidec: Check nb_streams in read_gab2_sub()
- avformat/avidec: Remove ancient assert
- avfilter/vf_colorspace: fix range for output colorspace option
- lavc/mediacodecdec_h264: fix SODB escaping
- avcodec/nvenc: fix const options for hevc gpu setting
- avformat/avidec: Fix memleak with dv in avi
- lavc/movtextdec.c: Avoid infinite loop on invalid data.
- avcodec/ansi: Check dimensions
- avcodec/cavsdsp: use av_clip_uint8() for idct
- avformat/movenc: Check packet in mov_write_single_packet() too
- avformat/movenc: Factor check_pkt() out
- avformat/utils: fix timebase error in avformat_seek_file()
- avcodec/g726: Add missing ADDB output mask
- avcodec/avpacket: clear side_data_elems
- avformat/movenc: Check first DTS similar to dts difference
- avcodec/ccaption_dec: Use simple array instead of AVBuffer
- avcodec/svq3: Reintroduce slice_type
- avformat/mov: Fix potential integer overflow in mov_read_keys
- swscale/swscale_unscaled: Try to fix Rgb16ToPlanarRgb16Wrapper() with slices
- swscale/swscale_unscaled: Fix packed_16bpc_bswap() with slices
- avformat/avidec: Fix infinite loop in avi_read_nikon()
- lavf/utils: Avoid an overflow for huge negative durations.
- avformat/hls: Fix handling of EXT-X-BYTERANGE streams over 2GB
- lavc/avpacket: Fix undefined behaviour, do not pass a null pointer to memcpy().
- lavc/mjpegdec: Do not skip reading quantization tables.
- cmdutils: fix implicit declaration of SetDllDirectory function

version 3.1.3:
- examples/demuxing_decoding: convert to codecpar
- avcodec/exr: Check tile positions
- avcodec/aacenc: Tighter input checks
- avformat/wtvdec: Check pointer before use
- libavcodec/wmalosslessdec: Check the remaining bits
- avcodec/adpcm: Fix adpcm_ima_wav padding
- avcodec/svq3: fix slice size check
- avcodec/diracdec: Check numx/y
- avcodec/h2645_parse: fix nal size
- avcodec/h2645_parse: Use get_nalsize() in ff_h2645_packet_split()
- h2645_parse: only read avc length code at the correct position
- h2645_parse: don't overread AnnexB NALs within an avc stream
- avcodec/h264_parser: Factor get_avc_nalsize() out
- avcodec/cfhd: Increase minimum band dimension to 3
- avcodec/indeo2: check ctab
- avformat/swfdec: Fix inflate() error code check
- avcodec/rawdec: Fix bits_per_coded_sample checks
- vcodec/h2645_parse: Clear buffer padding
- avcodec/h2645: Fix NAL unit padding
- avfilter/drawutils: Fix single plane with alpha
- cmdutils: check for SetDllDirectory() availability

version 3.1.2:
- cmdutils: remove the current working directory from the DLL search path on win32
- avcodec/rawdec: Fix palette handling with changing palettes
- avcodec/raw: Fix decoding of ilacetest.mov
- avformat/mov: Enable mp3 parsing if a packet needs it
- avformat/hls: Use an array instead of stream offset for stream mapping
- avformat/hls: Sync starting segment across variants on live streams
- avformat/hls: Fix regression with ranged media segments
- avcodec/ffv1enc: Fix assertion failure with non zero bits per sample
- avfilter/af_hdcd: small fix in af_hdcd.c where gain was not being adjusted for "attenuate slowly"
- avformat/oggdec: Fix integer overflow with invalid pts
- ffplay: Fix invalid array index
- avcodec/alacenc: allocate bigger packets (cherry picked from commit 82b84c71b009884c8d041361027718b19922c76d)
- libavcodec/dnxhd: Enable 12-bit DNxHR support.
- lavc/vaapi_encode_h26x: Fix a crash if "." is not the decimal separator.
- jni: Return ENOSYS on unsupported platforms
- lavu/hwcontext_vaapi: Fix compilation if VA_FOURCC_ABGR is not defined.
- avcodec/vp9_parser: Check the input frame sizes for being consistent
- avformat/flvdec: parse keyframe before a\v stream was created add_keyframes_index() when stream created or keyframe parsed
- avformat/flvdec: splitting add_keyframes_index() out from parse_keyframes_index()
- libavformat/rtpdec_asf: zero initialize the AVIOContext struct
- libavutil/opt: Small bugfix in example.
- libx264: Increase x264 opts character limit to 4096
- avcodec/h264_parser: Set sps/pps_ref
- librtmp: Avoid an infiniloop setting connection arguments
- avformat/oggparsevp8: fix pts calculation on pages ending with an invisible frame
- lavc/Makefile: Fix standalone compilation of the svq3 decoder.
- lavf/vplayerdec: Improve auto-detection.
- lavc/mediacodecdec_h264: properly convert extradata to annex-b
- Revert "configure: Enable GCC vectorization on ≥4.9 on x86"

version 3.1.1:
- doc/APIchanges: document the lavu/lavf field moves
- avformat/avformat: Move new field to the end of AVStream
- avformat/utils: update deprecated AVStream->codec when the context is updated
- avutil/frame: Move new field to the end of AVFrame
- libavcodec/exr : fix decoding piz float file.
- avformat/mov: Check sample size
- lavfi: Move new field to the end of AVFilterContext
- lavfi: Move new field to the end of AVFilterLink
- ffplay: Fix usage of private lavfi API
- lavc/mediacodecdec_h264: add missing NAL headers to SPS/PPS buffers
- lavc/pnm_parser: disable parsing for text based PNMs


version 3.1:
- DXVA2-accelerated HEVC Main10 decoding
- fieldhint filter
- loop video filter and aloop audio filter
- Bob Weaver deinterlacing filter
- firequalizer filter
- datascope filter
- bench and abench filters
- ciescope filter
- protocol blacklisting API
- MediaCodec H264 decoding
- VC-2 HQ RTP payload format (draft v1) depacketizer and packetizer
- VP9 RTP payload format (draft v2) packetizer
- AudioToolbox audio decoders
- AudioToolbox audio encoders
- coreimage filter (GPU based image filtering on OSX)
- libdcadec removed
- bitstream filter for extracting DTS core
- ADPCM IMA DAT4 decoder
- musx demuxer
- aix demuxer
- remap filter
- hash and framehash muxers
- colorspace filter
- hdcd filter
- readvitc filter
- VAAPI-accelerated format conversion and scaling
- libnpp/CUDA-accelerated format conversion and scaling
- Duck TrueMotion 2.0 Real Time decoder
- Wideband Single-bit Data (WSD) demuxer
- VAAPI-accelerated H.264/HEVC/MJPEG encoding
- DTS Express (LBR) decoder
- Generic OpenMAX IL encoder with support for Raspberry Pi
- IFF ANIM demuxer & decoder
- Direct Stream Transfer (DST) decoder
- loudnorm filter
- MTAF demuxer and decoder
- MagicYUV decoder
- OpenExr improvements (tile data and B44/B44A support)
- BitJazz SheerVideo decoder
- CUDA CUVID H264/HEVC decoder
- 10-bit depth support in native utvideo decoder
- libutvideo wrapper removed
- YUY2 Lossless Codec decoder
- VideoToolbox H.264 encoder


version 3.0:
- Common Encryption (CENC) MP4 encoding and decoding support
- DXV decoding
- extrastereo filter
- ocr filter
- alimiter filter
- stereowiden filter
- stereotools filter
- rubberband filter
- tremolo filter
- agate filter
- chromakey filter
- maskedmerge filter
- Screenpresso SPV1 decoding
- chromaprint fingerprinting muxer
- ffplay dynamic volume control
- displace filter
- selectivecolor filter
- extensive native AAC encoder improvements and removal of experimental flag
- ADPCM PSX decoder
- 3dostr, dcstr, fsb, genh, vag, xvag, ads, msf, svag & vpk demuxer
- zscale filter
- wve demuxer
- zero-copy Intel QSV transcoding in ffmpeg
- shuffleframes filter
- SDX2 DPCM decoder
- vibrato filter
- innoHeim/Rsupport Screen Capture Codec decoder
- ADPCM AICA decoder
- Interplay ACM demuxer and audio decoder
- XMA1 & XMA2 decoder
- realtime filter
- anoisesrc audio filter source
- IVR demuxer
- compensationdelay filter
- acompressor filter
- support encoding 16-bit RLE SGI images
- apulsator filter
- sidechaingate audio filter
- mipsdspr1 option has been renamed to mipsdsp
- aemphasis filter
- mips32r5 option has been removed
- mips64r6 option has been removed
- DXVA2-accelerated VP9 decoding
- SOFAlizer: virtual binaural acoustics filter
- VAAPI VP9 hwaccel
- audio high-order multiband parametric equalizer
- automatic bitstream filtering
- showspectrumpic filter
- libstagefright support removed
- spectrumsynth filter
- ahistogram filter
- only seek with the right mouse button in ffplay
- toggle full screen when double-clicking with the left mouse button in ffplay
- afftfilt filter
- convolution filter
- libquvi support removed
- support for dvaudio in wav and avi
- libaacplus and libvo-aacenc support removed
- Cineform HD decoder
- new DCA decoder with full support for DTS-HD extensions
- significant performance improvements in Windows Television (WTV) demuxer
- nnedi deinterlacer
- streamselect video and astreamselect audio filter
- swaprect filter
- metadata video and ametadata audio filter
- SMPTE VC-2 HQ profile support for the Dirac decoder
- SMPTE VC-2 native encoder supporting the HQ profile


version 2.8:
- colorkey video filter
- BFSTM/BCSTM demuxer
- little-endian ADPCM_THP decoder
- Hap decoder and encoder
- DirectDraw Surface image/texture decoder
- ssim filter
- optional new ASF demuxer
- showvolume filter
- Many improvements to the JPEG 2000 decoder
- Go2Meeting decoding support
- adrawgraph audio and drawgraph video filter
- removegrain video filter
- Intel QSV-accelerated MPEG-2 video and HEVC encoding
- Intel QSV-accelerated MPEG-2 video and HEVC decoding
- Intel QSV-accelerated VC-1 video decoding
- libkvazaar HEVC encoder
- erosion, dilation, deflate and inflate video filters
- Dynamic Audio Normalizer as dynaudnorm filter
- Reverse video and areverse audio filter
- Random filter
- deband filter
- AAC fixed-point decoding
- sidechaincompress audio filter
- bitstream filter for converting HEVC from MP4 to Annex B
- acrossfade audio filter
- allyuv and allrgb video sources
- atadenoise video filter
- OS X VideoToolbox support
- aphasemeter filter
- showfreqs filter
- vectorscope filter
- waveform filter
- hstack and vstack filter
- Support DNx100 (1440x1080@8)
- VAAPI hevc hwaccel
- VDPAU hevc hwaccel
- framerate filter
- Switched default encoders for webm to VP9 and Opus
- Removed experimental flag from the JPEG 2000 encoder


version 2.7:
- FFT video filter
- TDSC decoder
- DTS lossless extension (XLL) decoding (not lossless, disabled by default)
- showwavespic filter
- DTS decoding through libdcadec
- Drop support for nvenc API before 5.0
- nvenc HEVC encoder
- Detelecine filter
- Intel QSV-accelerated H.264 encoding
- MMAL-accelerated H.264 decoding
- basic APNG encoder and muxer with default extension "apng"
- unpack DivX-style packed B-frames in MPEG-4 bitstream filter
- WebM Live Chunk Muxer
- nvenc level and tier options
- chorus filter
- Canopus HQ/HQA decoder
- Automatically rotate videos based on metadata in ffmpeg
- improved Quickdraw compatibility
- VP9 high bit-depth and extended colorspaces decoding support
- WebPAnimEncoder API when available for encoding and muxing WebP
- Direct3D11-accelerated decoding
- Support Secure Transport
- Multipart JPEG demuxer


version 2.6:
- nvenc encoder
- 10bit spp filter
- colorlevels filter
- RIFX format for *.wav files
- RTP/mpegts muxer
- non continuous cache protocol support
- tblend filter
- cropdetect support for non 8bpp, absolute (if limit >= 1) and relative (if limit < 1.0) threshold
- Camellia symmetric block cipher
- OpenH264 encoder wrapper
- VOC seeking support
- Closed caption Decoder
- fspp, uspp, pp7 MPlayer postprocessing filters ported to native filters
- showpalette filter
- Twofish symmetric block cipher
- Support DNx100 (960x720@8)
- eq2 filter ported from libmpcodecs as eq filter
- removed libmpcodecs
- Changed default DNxHD colour range in QuickTime .mov derivatives to mpeg range
- ported softpulldown filter from libmpcodecs as repeatfields filter
- dcshift filter
- RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
- RTP depacketizer for AC3 payload format (RFC 4184)
- palettegen and paletteuse filters
- VP9 RTP payload format (draft 0) experimental depacketizer
- RTP depacketizer for DV (RFC 6469)
- DXVA2-accelerated HEVC decoding
- AAC ELD 480 decoding
- Intel QSV-accelerated H.264 decoding
- DSS SP decoder and DSS demuxer
- Fix stsd atom corruption in DNxHD QuickTimes
- Canopus HQX decoder
- RTP depacketization of T.140 text (RFC 4103)
- Port MIPS optimizations to 64-bit


version 2.5:
- HEVC/H.265 RTP payload format (draft v6) packetizer
- SUP/PGS subtitle demuxer
- ffprobe -show_pixel_formats option
- CAST128 symmetric block cipher, ECB mode
- STL subtitle demuxer and decoder
- libutvideo YUV 4:2:2 10bit support
- XCB-based screen-grabber
- UDP-Lite support (RFC 3828)
- xBR scaling filter
- AVFoundation screen capturing support
- ffserver supports codec private options
- creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
- WebP muxer with animated WebP support
- zygoaudio decoding support
- APNG demuxer
- postproc visualization support


version 2.4:
- Icecast protocol
- ported lenscorrection filter from frei0r filter
- large optimizations in dctdnoiz to make it usable
- ICY metadata are now requested by default with the HTTP protocol
- support for using metadata in stream specifiers in fftools
- LZMA compression support in TIFF decoder
- H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
- HEVC/H.265 RTP payload format (draft v6) depacketizer
- added codecview filter to visualize information exported by some codecs
- Matroska 3D support thorugh side data
- HTML generation using texi2html is deprecated in favor of makeinfo/texi2any
- silenceremove filter


version 2.3:
- AC3 fixed-point decoding
- shuffleplanes filter
- subfile protocol
- Phantom Cine demuxer
- replaygain data export
- VP7 video decoder
- Alias PIX image encoder and decoder
- Improvements to the BRender PIX image decoder
- Improvements to the XBM decoder
- QTKit input device
- improvements to OpenEXR image decoder
- support decoding 16-bit RLE SGI images
- GDI screen grabbing for Windows
- alternative rendition support for HTTP Live Streaming
- AVFoundation input device
- Direct Stream Digital (DSD) decoder
- Magic Lantern Video (MLV) demuxer
- On2 AVC (Audio for Video) decoder
- support for decoding through DXVA2 in ffmpeg
- libbs2b-based stereo-to-binaural audio filter
- libx264 reference frames count limiting depending on level
- native Opus decoder
- display matrix export and rotation API
- WebVTT encoder
- showcqt multimedia filter
- zoompan filter
- signalstats filter
- hqx filter (hq2x, hq3x, hq4x)
- flanger filter
- Image format auto-detection
- LRC demuxer and muxer
- Samba protocol (via libsmbclient)
- WebM DASH Manifest muxer
- libfribidi support in drawtext


version 2.2:

- HNM version 4 demuxer and video decoder
- Live HDS muxer
- setsar/setdar filters now support variables in ratio expressions
- elbg filter
- string validation in ffprobe
- support for decoding through VDPAU in ffmpeg (the -hwaccel option)
- complete Voxware MetaSound decoder
- remove mp3_header_compress bitstream filter
- Windows resource files for shared libraries
- aeval filter
- stereoscopic 3d metadata handling
- WebP encoding via libwebp
- ATRAC3+ decoder
- VP8 in Ogg demuxing
- side & metadata support in NUT
- framepack filter
- XYZ12 rawvideo support in NUT
- Exif metadata support in WebP decoder
- OpenGL device
- Use metadata_header_padding to control padding in ID3 tags (currently used in
  MP3, AIFF, and OMA files), FLAC header, and the AVI "junk" block.
- Mirillis FIC video decoder
- Support DNx444
- libx265 encoder
- dejudder filter
- Autodetect VDA like all other hardware accelerations
- aliases and defaults for Ogg subtypes (opus, spx)


version 2.1:

- aecho filter
- perspective filter ported from libmpcodecs
- ffprobe -show_programs option
- compand filter
- RTMP seek support
- when transcoding with ffmpeg (i.e. not streamcopying), -ss is now accurate
  even when used as an input option. Previous behavior can be restored with
  the -noaccurate_seek option.
- ffmpeg -t option can now be used for inputs, to limit the duration of
  data read from an input file
- incomplete Voxware MetaSound decoder
- read EXIF metadata from JPEG
- DVB teletext decoder
- phase filter ported from libmpcodecs
- w3fdif filter
- Opus support in Matroska
- FFV1 version 1.3 is stable and no longer experimental
- FFV1: YUVA(444,422,420) 9, 10 and 16 bit support
- changed DTS stream id in lavf mpeg ps muxer from 0x8a to 0x88, to be
  more consistent with other muxers.
- adelay filter
- pullup filter ported from libmpcodecs
- ffprobe -read_intervals option
- Lossless and alpha support for WebP decoder
- Error Resilient AAC syntax (ER AAC LC) decoding
- Low Delay AAC (ER AAC LD) decoding
- mux chapters in ASF files
- SFTP protocol (via libssh)
- libx264: add ability to encode in YUVJ422P and YUVJ444P
- Fraps: use BT.709 colorspace by default for yuv, as reference fraps decoder does
- make decoding alpha optional for prores, ffv1 and vp6 by setting
  the skip_alpha flag.
- ladspa wrapper filter
- native VP9 decoder
- dpx parser
- max_error_rate parameter in ffmpeg
- PulseAudio output device
- ReplayGain scanner
- Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
- Linux framebuffer output device
- HEVC decoder
- raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
- mergeplanes filter


version 2.0:

- curves filter
- reference-counting for AVFrame and AVPacket data
- ffmpeg now fails when input options are used for output file
  or vice versa
- support for Monkey's Audio versions from 3.93
- perms and aperms filters
- audio filtering support in ffplay
- 10% faster aac encoding on x86 and MIPS
- sine audio filter source
- WebP demuxing and decoding support
- ffmpeg options -filter_script and -filter_complex_script, which allo
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