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version <next>

Paul B Mahol's avatar
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- aecho filter
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- perspective filter ported from libmpcodecs
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- ffprobe -show_programs option
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- compand filter
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- RTMP seek support
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- 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.
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- ffmpeg -t option can now be used for inputs, to limit the duration of
  data read from an input file
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- incomplete Voxware MetaSound decoder
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- read EXIF metadata from JPEG
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- DVB teletext decoder
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- phase filter ported from libmpcodecs
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- w3fdif filter
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version 2.0:

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- curves filter
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- reference-counting for AVFrame and AVPacket data
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- ffmpeg now fails when input options are used for output file
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  or vice versa
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- support for Monkey's Audio versions from 3.93
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- perms and aperms filters
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- audio filtering support in ffplay
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- 10% faster aac encoding on x86 and MIPS
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- sine audio filter source
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- WebP demuxing and decoding support
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- new ffmpeg options -filter_script and -filter_complex_script, which allow a
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  filtergraph description to be read from a file
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- OpenCL support
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- audio phaser filter
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- separatefields filter
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- libquvi demuxer
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- uniform options syntax across all filters
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- telecine filter
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- new interlace filter
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- smptehdbars source
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- inverse telecine filters (fieldmatch and decimate)
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- colorbalance filter
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- colorchannelmixer filter
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- The matroska demuxer can now output proper verbatim ASS packets. It will
  become the default at the next libavformat major bump.
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- decent native animated GIF encoding
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- asetrate filter
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- interleave filter
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- timeline editing with filters
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- vidstabdetect and vidstabtransform filters for video stabilization using
  the vid.stab library
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- astats filter
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- trim and atrim filters
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- ffmpeg -t and -ss (output-only) options are now sample-accurate when
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  transcoding audio
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- Matroska muxer can now put the index at the beginning of the file.
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- extractplanes filter
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- avectorscope filter
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- ADPCM DTK decoder
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- ADP demuxer
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- RSD demuxer
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- RedSpark demuxer
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- ADPCM IMA Radical decoder
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- zmq filters
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- DCT denoiser filter (dctdnoiz)
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- Wavelet denoiser filter ported from libmpcodecs as owdenoise (formerly "ow")
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- Apple Intermediate Codec decoder
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- Escape 130 video decoder
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- FTP protocol support
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- V4L2 output device
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- 3D LUT filter (lut3d)
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- SMPTE 302M audio encoder
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- support for slice multithreading in libavfilter
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- Hald CLUT support (generation and filtering)
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- VC-1 interlaced B-frame support
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- support for WavPack muxing (raw and in Matroska)
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- XVideo output device
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- vignette filter
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- True Audio (TTA) encoder
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- Go2Webinar decoder
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- mcdeint filter ported from libmpcodecs
- sab filter ported from libmpcodecs
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- ffprobe -show_chapters option
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- WavPack encoding through libwavpack
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- rotate filter
Clément Bœsch's avatar
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- spp filter ported from libmpcodecs
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- libgme support
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- psnr filter
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version 1.2:
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- VDPAU hardware acceleration through normal hwaccel
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- SRTP support
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- Error diffusion dither in Swscale
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- Chained Ogg support
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- Theora Midstream reconfiguration support
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- EVRC decoder
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- audio fade filter
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- filtering audio with unknown channel layout
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- allpass, bass, bandpass, bandreject, biquad, equalizer, highpass, lowpass
  and treble audio filter
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- improved showspectrum filter, with multichannel support and sox-like colors
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- histogram filter
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- tee muxer
Paul B Mahol's avatar
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- il filter ported from libmpcodecs
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- support ID3v2 tags in ASF files
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- encrypted TTA stream decoding support
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- RF64 support in WAV muxer
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- noise filter ported from libmpcodecs
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- Subtitles character encoding conversion
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- blend filter
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- stereo3d filter ported from libmpcodecs
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version 1.1:

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- stream disposition information printing in ffprobe
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- filter for loudness analysis following EBU R128
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- Opus encoder using libopus
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- ffprobe -select_streams option
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- Pinnacle TARGA CineWave YUV16 decoder
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- TAK demuxer, decoder and parser
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- DTS-HD demuxer
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- remove -same_quant, it hasn't worked for years
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- FFM2 support
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- X-Face image encoder and decoder
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- 24-bit FLAC encoding
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- multi-channel ALAC encoding up to 7.1
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- metadata (INFO tag) support in WAV muxer
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- subtitles raw text decoder
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- support for building DLLs using MSVC
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- LVF demuxer
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- ffescape tool
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- metadata (info chunk) support in CAF muxer
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- field filter ported from libmpcodecs
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- AVR demuxer
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- geq filter ported from libmpcodecs
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- remove ffserver daemon mode
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- AST muxer/demuxer
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- new expansion syntax for drawtext
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- BRender PIX image decoder
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- ffprobe -show_entries option
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- ffprobe -sections option
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- ADPCM IMA Dialogic decoder
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- BRSTM demuxer
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- animated GIF decoder and demuxer
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- PVF demuxer
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- subtitles filter
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- IRCAM muxer/demuxer
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- Paris Audio File demuxer
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- Virtual concatenation demuxer
Clément Bœsch's avatar
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- VobSub demuxer
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- JSON captions for TED talks decoding support
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- SOX Resampler support in libswresample
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- aselect filter
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- SGI RLE 8-bit decoder
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- Silicon Graphics Motion Video Compressor 1 & 2 decoder
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- Silicon Graphics Movie demuxer
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- apad filter
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- Resolution & pixel format change support with multithreading for H.264
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- documentation split into per-component manuals
Clément Bœsch's avatar
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- pp (postproc) filter ported from MPlayer
Paul B Mahol's avatar
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- NIST Sphere demuxer
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- MPL2, VPlayer, MPlayer, AQTitle, PJS and SubViewer v1 subtitles demuxers and decoders
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- Sony Wave64 muxer
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- adobe and limelight publisher authentication in RTMP
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- data: URI scheme
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- support building on the Plan 9 operating system
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- kerndeint filter ported from MPlayer
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- histeq filter ported from VirtualDub
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- Megalux Frame demuxer
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- 012v decoder
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- Improved AVC Intra decoding support
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version 1.0:
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- INI and flat output in ffprobe
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- Scene detection in libavfilter
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- Indeo Audio decoder
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- channelsplit audio filter
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- setnsamples audio filter
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- atempo filter
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- ffprobe -show_data option
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- RTMPT protocol support
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- iLBC encoding/decoding via libilbc
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- Microsoft Screen 1 decoder
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- join audio filter
- audio channel mapping filter
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- Microsoft ATC Screen decoder
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- RTSP listen mode
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- TechSmith Screen Codec 2 decoder
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- AAC encoding via libfdk-aac
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- Microsoft Expression Encoder Screen decoder
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- RTMPS protocol support
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- RTMPTS protocol support
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- RTMPE protocol support
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- RTMPTE protocol support
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- showwaves and showspectrum filter
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- LucasArts SMUSH playback support
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- SAMI, RealText and SubViewer demuxers and decoders
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- Heart Of Darkness PAF playback support
- iec61883 device
- asettb filter
- new option: -progress
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- 3GPP Timed Text encoder/decoder
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- GeoTIFF decoder support
- ffmpeg -(no)stdin option
- Opus decoder using libopus
- caca output device using libcaca
- alphaextract and alphamerge filters
- concat filter
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- flite filter
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- Canopus Lossless Codec decoder
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- bitmap subtitles in filters (experimental and temporary)
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- MP2 encoding via TwoLAME
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- bmp parser
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- smptebars source
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- asetpts filter
Jérémy Tran's avatar
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- hue filter
Michael Bradshaw's avatar
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- ICO muxer
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- SubRip encoder and decoder without embedded timing
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- edge detection filter
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- framestep filter
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- ffmpeg -shortest option is now per-output file
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  -pass and -passlogfile are now per-output stream
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- volume measurement filter
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- Ut Video encoder
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- Microsoft Screen 2 decoder
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- smartblur filter ported from MPlayer
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- CPiA decoder
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- decimate filter ported from MPlayer
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- RTP depacketization of JPEG
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- Smooth Streaming live segmenter muxer
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- F4V muxer
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- sendcmd and asendcmd filters
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- WebVTT demuxer and decoder (simple tags supported)
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- RTP packetization of JPEG
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- faststart option in the MOV/MP4 muxer
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- support for building with MSVC
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version 0.11:
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- Fixes: CVE-2012-2772, CVE-2012-2774, CVE-2012-2775, CVE-2012-2776, CVE-2012-2777,
         CVE-2012-2779, CVE-2012-2782, CVE-2012-2783, CVE-2012-2784, CVE-2012-2785,
         CVE-2012-2786, CVE-2012-2787, CVE-2012-2788, CVE-2012-2789, CVE-2012-2790,
         CVE-2012-2791, CVE-2012-2792, CVE-2012-2793, CVE-2012-2794, CVE-2012-2795,
         CVE-2012-2796, CVE-2012-2797, CVE-2012-2798, CVE-2012-2799, CVE-2012-2800,
         CVE-2012-2801, CVE-2012-2802, CVE-2012-2803, CVE-2012-2804,
Paul B Mahol's avatar
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- v408 Quicktime and Microsoft AYUV Uncompressed 4:4:4:4 encoder and decoder
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- setfield filter
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- CDXL demuxer and decoder
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- Apple ProRes encoder
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- ffprobe -count_packets and -count_frames options
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- Sun Rasterfile Encoder
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- ID3v2 attached pictures reading and writing
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- WMA Lossless decoder
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- bluray protocol
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- blackdetect filter
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- libutvideo encoder wrapper (--enable-libutvideo)
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- swapuv filter
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- bbox filter
Paul B Mahol's avatar
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- XBM encoder and decoder
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- RealAudio Lossless decoder
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- ZeroCodec decoder
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- tile video filter
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- Metal Gear Solid: The Twin Snakes demuxer
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- OpenEXR image decoder
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- removelogo filter
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- drop support for ffmpeg without libavfilter
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- drawtext video filter: fontconfig support
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- ffmpeg -benchmark_all option
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- super2xsai filter ported from libmpcodecs
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- add libavresample audio conversion library for compatibility
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- MicroDVD decoder
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- Avid Meridien (AVUI) encoder and decoder
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- accept + prefix to -pix_fmt option to disable automatic conversions.
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- complete audio filtering in libavfilter and ffmpeg
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- add fps filter
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- vorbis parser
- png parser
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- audio mix filter
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- ffv1: support (draft) version 1.3
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version 0.10:
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- Fixes: CVE-2011-3929, CVE-2011-3934, CVE-2011-3935, CVE-2011-3936,
         CVE-2011-3937, CVE-2011-3940, CVE-2011-3941, CVE-2011-3944,
         CVE-2011-3945, CVE-2011-3946, CVE-2011-3947, CVE-2011-3949,
         CVE-2011-3950, CVE-2011-3951, CVE-2011-3952
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- v410 Quicktime Uncompressed 4:4:4 10-bit encoder and decoder
- SBaGen (SBG) binaural beats script demuxer
- OpenMG Audio muxer
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- Timecode extraction in DV and MOV
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- thumbnail video filter
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- XML output in ffprobe
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- asplit audio filter
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- tinterlace video filter
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- astreamsync audio filter
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- amerge audio filter
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- ISMV (Smooth Streaming) muxer
Justin Ruggles's avatar
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- GSM audio parser
Paul B Mahol's avatar
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- SMJPEG muxer
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- XWD encoder and decoder
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- Automatic thread count based on detection number of (available) CPU cores
Paul B Mahol's avatar
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- y41p Brooktree Uncompressed 4:1:1 12-bit encoder and decoder
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- ffprobe -show_error option
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- Avid 1:1 10-bit RGB Packer codec
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- v308 Quicktime Uncompressed 4:4:4 encoder and decoder
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- yuv4 libquicktime packed 4:2:0 encoder and decoder
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- ffprobe -show_frames option
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- silencedetect audio filter
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- ffprobe -show_program_version, -show_library_versions, -show_versions options
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- rv34: frame-level multi-threading
- optimized iMDCT transform on x86 using SSE for for mpegaudiodec
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- Improved PGS subtitle decoder
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- dumpgraph option to lavfi device
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- r210 and r10k encoders
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- ffwavesynth decoder
- aviocat tool
- ffeval tool
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version 0.9:
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- openal input device added
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- boxblur filter added
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- BWF muxer
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- Flash Screen Video 2 decoder
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- lavfi input device added
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- added avconv, which is almost the same for now, except
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for a few incompatible changes in the options, which will hopefully make them
easier to use. The changes are:
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    * The options placement is now strictly enforced! While in theory the
      options for ffmpeg should be given in [input options] -i INPUT [output
      options] OUTPUT order, in practice it was possible to give output options
      before the -i and it mostly worked. Except when it didn't - the behavior was
      a bit inconsistent. In avconv, it is not possible to mix input and output
      options. All non-global options are reset after an input or output filename.
    * All per-file options are now truly per-file - they apply only to the next
      input or output file and specifying different values for different files
      will now work properly (notably -ss and -t options).
    * All per-stream options are now truly per-stream - it is possible to
      specify which stream(s) should a given option apply to. See the Stream
      specifiers section in the avconv manual for details.
    * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
      sense that they're specified after the output filename instead of before,
      like all other options. In avconv this irregularity is removed, all options
      apply to the next input or output file.
    * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
      irregular and highly confusing, they were also redundant. In avconv the -map
      option will create new streams in the output file and map input streams to
      them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
      each stream in the first input file.
    * The -map option now has slightly different and more powerful syntax:
        + Colons (':') are used to separate file index/stream type/stream index
          instead of dots. Comma (',') is used to separate the sync stream instead
          of colon.. This is done for consistency with other options.
        + It's possible to specify stream type. E.g. -map 0:a:2 creates an
          output stream from the third input audio stream.
        + Omitting the stream index now maps all the streams of the given type,
          not just the first. E.g. -map 0:s creates output streams for all the
          subtitle streams in the first input file.
        + Since -map can now match multiple streams, negative mappings were
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          introduced. Negative mappings disable some streams from an already
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          defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
          all the stream in the first input file, except for the second audio
          stream'.
    * There is a new option -c (or -codec) for choosing the decoder/encoder to
      use, which allows to precisely specify target stream(s) consistently with
      other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
      libvorbis sets the codec for the first audio stream and -c copy copies all
      the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
      aliases to -c:v/a/s
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    * It is now possible to precisely specify which stream should an AVOption
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      apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
      -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
      syntax is deprecated and will stop working soon.
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    * -map_chapters now takes only an input file index and applies to the next
      output file. This is consistent with how all the other options work.
    * -map_metadata now takes only an input metadata specifier and applies to
      the next output file. Output metadata specifier is now part of the option
      name, similarly to the AVOptions/map/codec feature above.
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    * -metadata can now be used to set metadata on streams and chapters, e.g.
      -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
      This made -vlang/-alang/-slang options redundant, so they were removed.
    * -qscale option now uses stream specifiers and applies to all streams, not
      just video. I.e. plain -qscale number would now apply to all streams. To get
      the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
      and -aq is now an alias for -q:a.
    * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
      uses stream specifiers. Use -bsf:v/a/s instead of the old options.
    * -itsscale option now uses stream specifiers, so its argument is only the
      scale parameter.
    * -intra option was removed, use -g 0 for the same effect.
    * -psnr option was removed, use -flags +psnr for the same effect.
    * -vf option is now an alias to the new -filter option, which uses stream specifiers.
    * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
    * -vtag/-atag/-stag options are now aliases to the new -tag option.
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- XMV demuxer
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- LOAS demuxer
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- ashowinfo filter added
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- Windows Media Image decoder
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- amovie source added
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- LATM muxer/demuxer
Compn's avatar
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- Speex encoder via libspeex
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- JSON output in ffprobe
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- WTV muxer
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- Optional C++ Support (needed for libstagefright)
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- H.264 Decoding on Android via Stagefright
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- Prores decoder
Peter Ross's avatar
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- BIN/XBIN/ADF/IDF text file decoder
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- aconvert audio filter added
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- audio support to lavfi input device added
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- libcdio-paranoia input device for audio CD grabbing
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- Apple ProRes decoder
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- CELT in Ogg demuxing
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- G.723.1 demuxer and decoder
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- libmodplug support (--enable-libmodplug)
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- VC-1 interlaced decoding
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- libutvideo wrapper (--enable-libutvideo)
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- aevalsrc audio source added
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- Ut Video decoder
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- Speex encoding via libspeex
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- 4:2:2 H.264 decoding support
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- 4:2:2 and 4:4:4 H.264 encoding with libx264
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- Pulseaudio input device
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- Prores encoder
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- Video Decoder Acceleration (VDA) HWAccel module.
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- replacement Indeo 3 decoder
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- new ffmpeg option: -map_channel
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- volume audio filter added
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- earwax audio filter added
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- libv4l2 support (--enable-libv4l2)
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- TLS/SSL and HTTPS protocol support
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- AVOptions API rewritten and documented
- most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
  AVCodecContext deprecated. Codec private options should be used instead.
- Properly working defaults in libx264 wrapper, support for native presets.
- Encrypted OMA files support
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- Discworld II BMV decoding support
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- VBLE Decoder
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- OS X Video Decoder Acceleration (VDA) support
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- compact and csv output in ffprobe
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- pan audio filter
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- IFF Amiga Continuous Bitmap (ACBM) decoder
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- ass filter
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- CRI ADX audio format muxer and demuxer
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- Playstation Portable PMP format demuxer
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- Microsoft Windows ICO demuxer
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- life source
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- PCM format support in OMA demuxer
Paul B Mahol's avatar
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- CLJR encoder
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- new option: -report
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- Dxtory capture format decoder
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- cellauto source
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- Simple segmenting muxer
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- Indeo 4 decoder
- SMJPEG demuxer
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version 0.8:
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- many many things we forgot because we rather write code than changelogs
James Zern's avatar
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- WebM support in Matroska de/muxer
Diego Biurrun's avatar
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- low overhead Ogg muxing
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- MMS-TCP support
James Zern's avatar
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- VP8 de/encoding via libvpx
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- Demuxer for On2's IVF format
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- Pictor/PC Paint decoder
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- HE-AAC v2 decoder
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- HE-AAC v2 encoding with libaacplus
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- libfaad2 wrapper removed
481
- DTS-ES extension (XCh) decoding support
482
- native VP8 decoder
483
- RTSP tunneling over HTTP
484
- RTP depacketization of SVQ3
485
- -strict inofficial replaced by -strict unofficial
486
- ffplay -exitonkeydown and -exitonmousedown options added
487
- native GSM / GSM MS decoder
488
- RTP depacketization of QDM2
Peter Ross's avatar
Peter Ross committed
489
- ANSI/ASCII art playback system
490
- Lego Mindstorms RSO de/muxer
491
- libavcore added (and subsequently removed)
492
- SubRip subtitle file muxer and demuxer
493
- Chinese AVS encoding via libxavs
494
- ffprobe -show_packets option added
495
- RTP packetization of Theora and Vorbis
496
- RTP depacketization of MP4A-LATM
497
- RTP packetization and depacketization of VP8
Stefano Sabatini's avatar
Stefano Sabatini committed
498
- hflip filter
499
- Apple HTTP Live Streaming demuxer
500
- a64 codec
501
- MMS-HTTP support
Martin Storsjö's avatar
Martin Storsjö committed
502
- G.722 ADPCM audio encoder/decoder
Zhou Zongyi's avatar
Zhou Zongyi committed
503
- R10k video decoder
504
- ocv_smooth filter
Stefano Sabatini's avatar
Stefano Sabatini committed
505
- frei0r wrapper filter
506
- change crop filter syntax to width:height:x:y
507
- make the crop filter accept parametric expressions
508
- make ffprobe accept AVFormatContext options
509
- yadif filter
510
- blackframe filter
511
- Demuxer for Leitch/Harris' VR native stream format (LXF)
512
- RTP depacketization of the X-QT QuickTime format
Martin Storsjö's avatar
Martin Storsjö committed
513
- SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
514
- cropdetect filter
515
- ffmpeg -crop* options removed
Stefano Sabatini's avatar
Stefano Sabatini committed
516
- transpose filter added
517
- ffmpeg -force_key_frames option added
518
- demuxer for receiving raw rtp:// URLs without an SDP description
519
- single stream LATM/LOAS decoder
520
- setpts filter added
521
- Win64 support for optimized x86 assembly functions
522
- MJPEG/AVI1 to JPEG/JFIF bitstream filter
523
- ASS subtitle encoder and decoder
524
- IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
525
- overlay filter added
526
- rename aspect filter to setdar, and pixelaspect to setsar
Anssi Hannula's avatar
Anssi Hannula committed
527
- IEC 61937 demuxer
Anatoly Nenashev's avatar
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528
- Mobotix .mxg demuxer
529
- frei0r source added
530
- hqdn3d filter added
531
- RTP depacketization of QCELP
Michael Chinen's avatar
Michael Chinen committed
532
- FLAC parser added
533
- gradfun filter added
534
- AMR-WB decoder
535
- replace the ocv_smooth filter with a more generic ocv filter
536
- Windows Televison (WTV) demuxer
Anton Khirnov's avatar
Anton Khirnov committed
537
- FFmpeg metadata format muxer and demuxer
Aurelien Jacobs's avatar
Aurelien Jacobs committed
538
- SubRip (srt) subtitle encoder and decoder
539
- floating-point AC-3 encoder added
540
- Lagarith decoder
541
- ffmpeg -copytb option added
542
- IVF muxer added
Kostya Shishkov's avatar
Kostya Shishkov committed
543
- Wing Commander IV movies decoder added
544
- movie source added
545
- Bink version 'b' audio and video decoder
Peter Ross's avatar
Peter Ross committed
546
- Bitmap Brothers JV playback system
547
- Apple HTTP Live Streaming protocol handler
548
- sndio support for playback and record
549
- Linux framebuffer input device added
550
- Chronomaster DFA decoder
Peter Ross's avatar
Peter Ross committed
551
- DPX image encoder
552
- MicroDVD subtitle file muxer and demuxer
553
- Playstation Portable PMP format demuxer
554
- fieldorder video filter added
555
- AAC encoding via libvo-aacenc
556
- AMR-WB encoding via libvo-amrwbenc
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Max Horn committed
557
- xWMA demuxer
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anatoly committed
558
- Mobotix MxPEG decoder
559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584
- VP8 frame-multithreading
- NEON optimizations for VP8
- Lots of deprecated API cruft removed
- fft and imdct optimizations for AVX (Sandy Bridge) processors
- showinfo filter added
- SMPTE 302M AES3 audio decoder
- Apple Core Audio Format muxer
- 9bit and 10bit per sample support in the H.264 decoder
- 9bit and 10bit FFV1 encoding / decoding
- split filter added
- select filter added
- sdl output device added
- libmpcodecs video filter support (3 times as many filters than before)
- mpeg2 aspect ratio dection fixed
- libxvid aspect pickiness fixed
- Frame multithreaded decoding
- E-AC-3 audio encoder
- ac3enc: add channel coupling support
- floating-point sample format support to the ac3, eac3, dca, aac, and vorbis decoders.
- H264/MPEG frame-level multi-threading
- All av_metadata_* functions renamed to av_dict_* and moved to libavutil
- 4:4:4 H.264 decoding support
- 10-bit H.264 optimizations for x86
- lut, lutrgb, and lutyuv filters added
- buffersink libavfilter sink added
- Bump libswscale for recently reported ABI break
585
- New J2K encoder (via OpenJPEG)
586 587 588 589 590


version 0.7:

- all the changes for 0.8, but keeping API/ABI compatibility with the 0.6 release
591 592 593 594


version 0.6:

595
- PB-frame decoding for H.263
596
- deprecated vhook subsystem removed
597
- deprecated old scaler removed
Vitor Sessak's avatar
Vitor Sessak committed
598
- VQF demuxer
599
- Alpha channel scaler
600
- PCX encoder
601
- RTP packetization of H.263
602
- RTP packetization of AMR
603
- RTP depacketization of Vorbis
604
- CorePNG decoding support
605
- Cook multichannel decoding support
606
- introduced avlanguage helpers in libavformat
607
- 8088flex TMV demuxer and decoder
608
- per-stream language-tags extraction in asfdec
609
- V210 decoder and encoder
610
- remaining GPL parts in AC-3 decoder converted to LGPL
Kenan Gillet's avatar
Kenan Gillet committed
611
- QCP demuxer
612
- SoX native format muxer and demuxer
613
- AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
614
- DPX image decoder
615
- Electronic Arts Madcow decoder
616
- DivX (XSUB) subtitle encoder
617
- nonfree libamr support for AMR-NB/WB decoding/encoding removed
Diego Biurrun's avatar
Diego Biurrun committed
618
- experimental AAC encoder
619
- RTP depacketization of ASF and RTSP from WMS servers
620
- RTMP support in libavformat
621
- noX handling for OPT_BOOL X options
Daniel Verkamp's avatar
Daniel Verkamp committed
622
- Wave64 demuxer
623
- IEC-61937 compatible Muxer
Vitor Sessak's avatar
Vitor Sessak committed
624
- TwinVQ decoder
625
- Bluray (PGS) subtitle decoder
626
- LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
Diego Biurrun's avatar
Diego Biurrun committed
627
- WMA Pro decoder
Peter Ross's avatar
Peter Ross committed
628
- Core Audio Format demuxer
629
- ATRAC1 decoder
630
- MD STUDIO audio demuxer
631
- RF64 support in WAV demuxer
632
- MPEG-4 Audio Lossless Coding (ALS) decoder
Daniel Verkamp's avatar
Daniel Verkamp committed
633
- -formats option split into -formats, -codecs, -bsfs, and -protocols
634
- IV8 demuxer
Michael Tison's avatar
Michael Tison committed
635
- CDG demuxer and decoder
636
- R210 decoder
637
- Auravision Aura 1 and 2 decoders
638
- Deluxe Paint Animation playback system
Vitor Sessak's avatar
Vitor Sessak committed
639
- SIPR decoder
640
- Adobe Filmstrip muxer and demuxer
641
- RTP depacketization of H.263
Kostya Shishkov's avatar
Kostya Shishkov committed
642
- Bink demuxer and audio/video decoders
643
- enable symbol versioning by default for linkers that support it
Peter Ross's avatar
Peter Ross committed
644
- IFF PBM/ILBM bitmap decoder
645
- concat protocol
Kostya Shishkov's avatar
Kostya Shishkov committed
646
- Indeo 5 decoder
647
- RTP depacketization of AMR
Diego Biurrun's avatar
Diego Biurrun committed
648 649
- WMA Voice decoder
- ffprobe tool
650
- AMR-NB decoder
Martin Storsjö's avatar
Martin Storsjö committed
651
- RTSP muxer
652
- HE-AAC v1 decoder
653
- Kega Game Video (KGV1) decoder
654
- VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
655
- RTP depacketization of Theora
656
- HTTP Digest authentication
657
- RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
658
- Psygnosis YOP demuxer and video decoder
659
- spectral extension support in the E-AC-3 decoder
660
- unsharp video filter
661
- RTP hinting in the mov/3gp/mp4 muxer
662 663 664 665 666 667
- Dirac in Ogg demuxing
- seek to keyframes in Ogg
- 4:2:2 and 4:4:4 Theora decoding
- 35% faster VP3/Theora decoding
- faster AAC decoding
- faster H.264 decoding
668
- RealAudio 1.0 (14.4K) encoder
669

670

671 672
version 0.5:

673
- DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
674
- TechSmith Camtasia (TSCC) video decoder
675
- IBM Ultimotion (ULTI) video decoder
676 677
- Sierra Online audio file demuxer and decoder
- Apple QuickDraw (qdrw) video decoder
678
- Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
679
- Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
680
- Miro VideoXL (VIXL) video decoder
Mike Melanson's avatar
Mike Melanson committed
681
- H.261 video encoder
682
- QPEG video decoder
Mike Melanson's avatar
Mike Melanson committed
683
- Nullsoft Video (NSV) file demuxer
684
- Shorten audio decoder
685
- LOCO video decoder
686
- Apple Lossless Audio Codec (ALAC) decoder
687
- Winnov WNV1 video decoder
688
- Autodesk Animator Studio Codec (AASC) decoder
Diego Biurrun's avatar
Diego Biurrun committed
689
- Indeo 2 video decoder
690
- Fraps FPS1 video decoder
Diego Biurrun's avatar
Diego Biurrun committed
691
- Snow video encoder/decoder
692
- Sonic audio encoder/decoder
693
- Vorbis audio decoder
694
- Macromedia ADPCM decoder
Diego Biurrun's avatar
Diego Biurrun committed
695 696
- Duck TrueMotion 2 video decoder
- support for decoding FLX and DTA extensions in FLIC files
697
- H.264 custom quantization matrices support
Diego Biurrun's avatar
Diego Biurrun committed
698
- ffserver fixed, it should now be usable again
Diego Biurrun's avatar
Diego Biurrun committed
699
- QDM2 audio decoder
700
- Real Cooker audio decoder
701
- TrueSpeech audio decoder
702 703
- WMA2 audio decoder fixed, now all files should play correctly
- RealAudio 14.4 and 28.8 decoders fixed
704
- JPEG-LS decoder
Diego Biurrun's avatar
Diego Biurrun committed
705 706
- build system improvements
- tabs and trailing whitespace removed from the codebase
707
- CamStudio video decoder
708
- AIFF/AIFF-C audio format, encoding and decoding
709
- ADTS AAC file reading and writing
710
- Creative VOC file reading and writing
711
- American Laser Games multimedia (*.mm) playback system
712
- Zip Motion Blocks Video decoder
713
- improved Theora/VP3 decoder
714
- True Audio (TTA) decoder
715
- AVS demuxer and video decoder
716
- JPEG-LS encoder
717
- Smacker demuxer and decoder
718
- NuppelVideo/MythTV demuxer and RTjpeg decoder
719
- KMVC decoder
720
- MPEG-2 intra VLC support
721
- MPEG-2 4:2:2 encoder
722
- Flash Screen Video decoder
Reimar Döffinger's avatar
Reimar Döffinger committed
723
- GXF demuxer
Diego Biurrun's avatar
Diego Biurrun committed
724
- Chinese AVS decoder
725
- GXF muxer
Baptiste Coudurier's avatar
Baptiste Coudurier committed
726
- MXF demuxer
Diego Biurrun's avatar
Diego Biurrun committed
727
- VC-1/WMV3/WMV9 video decoder
728
- MacIntel support
Diego Biurrun's avatar
Diego Biurrun committed
729
- AviSynth support
730
- VMware video decoder
731 732
- VP5 video decoder
- VP6 video decoder
733
- WavPack lossless audio decoder
Kostya Shishkov's avatar
Kostya Shishkov committed
734
- Targa (.TGA) picture decoder
735
- Vorbis audio encoder
736
- Delphine Software .cin demuxer/audio and video decoder
737
- Tiertex .seq demuxer/video decoder
738
- MTV demuxer
739
- TIFF picture encoder and decoder
740
- GIF picture decoder
741
- Intel Music Coder decoder
742
- Zip Motion Blocks Video encoder
743
- Musepack decoder
744
- Flash Screen Video encoder
745
- Theora encoding via libtheora
746
- BMP encoder
Diego Biurrun's avatar
Diego Biurrun committed
747
- WMA encoder
748
- GSM-MS encoder and decoder
Kostya Shishkov's avatar
Kostya Shishkov committed
749
- DCA decoder
750
- DXA demuxer and decoder
Baptiste Coudurier's avatar
Baptiste Coudurier committed
751
- DNxHD decoder
752
- Gamecube movie (.THP) playback system
753
- Blackfin optimizations
754
- Interplay C93 demuxer and video decoder
755
- Bethsoft VID demuxer and video decoder
Anssi Hannula's avatar
Anssi Hannula committed
756
- CRYO APC demuxer
757
- ATRAC3 decoder
758
- V.Flash PTX decoder
759
- RoQ muxer, RoQ audio encoder
760
- Renderware TXD demuxer and decoder
761
- extern C declarations for C++ removed from headers
762
- sws_flags command line option
763
- codebook generator
Vitor Sessak's avatar
Vitor Sessak committed
764
- RoQ video encoder
Alexis Ballier's avatar
Alexis Ballier committed
765
- QTRLE encoder
766
- OS/2 support removed and restored again
767
- AC-3 decoder
768
- NUT muxer
769
- additional SPARC (VIS) optimizations
David Conrad's avatar
David Conrad committed
770
- Matroska muxer
771
- slice-based parallel H.264 decoding
Kostya Shishkov's avatar
Kostya Shishkov committed
772
- Monkey's Audio demuxer and decoder
Vladimir Voroshilov's avatar
Vladimir Voroshilov committed
773
- AMV audio and video decoder
774
- DNxHD encoder
Carl Eugen Hoyos's avatar
Carl Eugen Hoyos committed
775
- H.264 PAFF decoding
776
- Nellymoser ASAO decoder
777
- Beam Software SIFF demuxer and decoder
778
- libvorbis Vorbis decoding removed in favor of native decoder
Diego Biurrun's avatar
Diego Biurrun committed
779
- IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
780
- Ogg (Theora, Vorbis and FLAC) muxer
781
- The "device" muxers and demuxers are now in a new libavdevice library
782 783
- PC Paintbrush PCX decoder
- Sun Rasterfile decoder
784
- TechnoTrend PVA demuxer
Ivo van Poorten's avatar
Ivo van Poorten committed
785
- Linux Media Labs MPEG-4 (LMLM4) demuxer
786
- AVM2 (Flash 9) SWF muxer
787
- QT variant of IMA ADPCM encoder
Ramiro Polla's avatar
Ramiro Polla committed
788
- VFW grabber
789
- iPod/iPhone compatible mp4 muxer
Ramiro Polla's avatar
Ramiro Polla committed
790
- Mimic decoder
791
- MSN TCP Webcam stream demuxer
Sascha Sommer's avatar
Sascha Sommer committed
792
- RL2 demuxer / decoder
793 794
- IFF demuxer
- 8SVX audio decoder
795
- non-recursive Makefiles
Sisir Koppaka's avatar
Sisir Koppaka committed
796
- BFI demuxer
797
- MAXIS EA XA (.xa) demuxer / decoder
Sisir Koppaka's avatar
Sisir Koppaka committed
798
- BFI video decoder
799
- OMA demuxer
Ramiro Polla's avatar
Ramiro Polla committed
800
- MLP/TrueHD decoder
801
- Electronic Arts CMV decoder
802 803
- Motion Pixels Video decoder
- Motion Pixels MVI demuxer
804
- removed animated GIF decoder/demuxer
Peter Ross's avatar
Peter Ross committed
805
- D-Cinema audio muxer
Peter Ross's avatar
Peter Ross committed
806
- Electronic Arts TGV decoder
807
- Apple Lossless Audio Codec (ALAC) encoder
808
- AAC decoder
809
- floating point PCM encoder/decoder
810
- MXF muxer
811
- DV100 AKA DVCPRO HD decoder and demuxer
812
- E-AC-3 support added to AC-3 decoder
813
- Nellymoser ASAO encoder
814
- ASS and SSA demuxer and muxer
815
- liba52 wrapper removed
816
- SVQ3 watermark decoding support
817
- Speex decoding via libspeex
818
- Electronic Arts TGQ decoder
819
- RV40 decoder
820
- QCELP / PureVoice decoder
821
- RV30 decoder
Ben Littler's avatar
Ben Littler committed
822
- hybrid WavPack support
Baptiste Coudurier's avatar
Baptiste Coudurier committed
823
- R3D REDCODE demuxer
824
- ALSA support for playback and record
Peter Ross's avatar
Peter Ross committed
825
- Electronic Arts TQI decoder
826
- OpenJPEG based JPEG 2000 decoder
827
- NC (NC4600) camera file demuxer
828
- Gopher client support
Baptiste Coudurier's avatar
Baptiste Coudurier committed
829
- MXF D-10 muxer
830
- generic metadata API
831
- flash ScreenVideo2 encoder
832

833

Michael Niedermayer's avatar
Michael Niedermayer committed
834 835
version 0.4.9-pre1:

836
- DV encoder, DV muxer
837 838
- Microsoft RLE video decoder
- Microsoft Video-1 decoder
839
- Apple Animation (RLE) decoder
Mike Melanson's avatar
Mike Melanson committed
840
- Apple Graphics (SMC) decoder
841 842 843
- Apple Video (RPZA) decoder
- Cinepak decoder
- Sega FILM (CPK) file demuxer
Mike Melanson's avatar
Mike Melanson committed
844
- Westwood multimedia support (VQA & AUD files)
845
- Id Quake II CIN playback support
Mike Melanson's avatar
Mike Melanson committed
846 847
- 8BPS video decoder
- FLIC playback support
848 849
- RealVideo 2.0 (RV20) decoder
- Duck TrueMotion v1 (DUCK) video decoder
Mike Melanson's avatar
Mike Melanson committed
850
- Sierra VMD demuxer and video decoder
Michael Niedermayer's avatar
Michael Niedermayer committed
851
- MSZH and ZLIB decoder support
852
- SVQ1 video encoder
Michael Niedermayer's avatar
Michael Niedermayer committed
853
- AMR-WB support
Diego Biurrun's avatar
Diego Biurrun committed
854
- PPC optimizations
Michael Niedermayer's avatar
Michael Niedermayer committed
855
- rate distortion optimal cbp support
Diego Biurrun's avatar
Diego Biurrun committed
856
- rate distorted optimal ac prediction for MPEG-4
Michael Niedermayer's avatar
Michael Niedermayer committed
857 858 859
- rate distorted optimal lambda->qp support
- AAC encoding with libfaac
- Sunplus JPEG codec (SP5X) support
Diego Biurrun's avatar
Diego Biurrun committed
860 861
- use Lagrange multipler instead of QP for ratecontrol
- Theora/VP3 decoding support
Michael Niedermayer's avatar
Michael Niedermayer committed
862
- XA and ADX ADPCM codecs
Diego Biurrun's avatar
Diego Biurrun committed
863
- export MPEG-2 active display area / pan scan
Michael Niedermayer's avatar
Michael Niedermayer committed
864 865
- Add support for configuring with IBM XLC
- floating point AAN DCT
Diego Biurrun's avatar
Diego Biurrun committed
866 867
- initial support for zygo video (not complete)
- RGB ffv1 support
Michael Niedermayer's avatar
Michael Niedermayer committed
868 869 870 871 872
- new audio/video parser API
- av_log() system
- av_read_frame() and av_seek_frame() support
- missing last frame fixes
- seek by mouse in ffplay
Diego Biurrun's avatar
Diego Biurrun committed
873 874 875 876 877 878
- noise reduction of DCT coefficients
- H.263 OBMC & 4MV support
- H.263 alternative inter vlc support
- H.263 loop filter
- H.263 slice structured mode
- interlaced DCT support for MPEG-2 encoding
Michael Niedermayer's avatar
Michael Niedermayer committed
879
- stuffing to stay above min_bitrate
Diego Biurrun's avatar
Diego Biurrun committed
880
- MB type & QP visualization
Michael Niedermayer's avatar
Michael Niedermayer committed
881 882 883 884
- frame stepping for ffplay
- interlaced motion estimation
- alternate scantable support
- SVCD scan offset support
Diego Biurrun's avatar
Diego Biurrun committed
885 886
- closed GOP support
- SSE2 FDCT
Michael Niedermayer's avatar
Michael Niedermayer committed
887 888 889 890
- quantizer noise shaping
- G.726 ADPCM audio codec
- MS ADPCM encoding
- multithreaded/SMP motion estimation
Diego Biurrun's avatar
Diego Biurrun committed
891 892
- multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
- multithreaded/SMP decoding for MPEG-2
Michael Niedermayer's avatar
Michael Niedermayer committed
893 894
- FLAC decoder
- Metrowerks CodeWarrior suppport
Diego Biurrun's avatar
Diego Biurrun committed
895
- H.263+ custom pcf support
Michael Niedermayer's avatar
Michael Niedermayer committed
896
- nicer output for 'ffmpeg -formats'
Diego Biurrun's avatar
Diego Biurrun committed
897
- Matroska demuxer
Michael Niedermayer's avatar
Michael Niedermayer committed
898
- SGI image format, encoding and decoding
Diego Biurrun's avatar
Diego Biurrun committed
899 900
- H.264 loop filter support
- H.264 CABAC support
901
- nicer looking arrows for the motion vector visualization
Michael Niedermayer's avatar
Michael Niedermayer committed
902 903
- improved VCD support
- audio timestamp drift compensation
Diego Biurrun's avatar
Diego Biurrun committed
904
- MPEG-2 YUV 422/444 support
Michael Niedermayer's avatar
Michael Niedermayer committed
905 906
- polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
- better image scaling
Diego Biurrun's avatar
Diego Biurrun committed
907
- H.261 support
Michael Niedermayer's avatar
Michael Niedermayer committed
908 909
- correctly interleave packets during encoding
- VIS optimized motion compensation
Diego Biurrun's avatar
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910 911
- intra_dc_precision>0 encoding support
- support reuse of motion vectors/MB types/field select values of the source video
Michael Niedermayer's avatar
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912 913 914
- more accurate deblock filter
- padding support
- many optimizations and bugfixes
915
- FunCom ISS audio file demuxer and according ADPCM decoding
916

917

Fabrice Bellard's avatar
Fabrice Bellard committed
918 919
version 0.4.8:

Diego Biurrun's avatar
Diego Biurrun committed
920
- MPEG-2 video encoding (Michael)
Mike Melanson's avatar
Mike Melanson committed
921
- Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
Mike Melanson's avatar
Mike Melanson committed
922 923 924
- Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
  and Mario Brito)
- Xan DPCM audio decoder (Mario Brito)
925
- Interplay MVE playback subsystem (Mike Melanson)
Mike Melanson's avatar
Mike Melanson committed
926 927
- Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)

928

Mike Melanson's avatar
Mike Melanson committed
929
version 0.4.7:
Hetz Ben Hamo's avatar
Hetz Ben Hamo committed
930

Diego Biurrun's avatar
Diego Biurrun committed
931
- RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
Hetz Ben Hamo's avatar
Hetz Ben Hamo committed
932
  (originally from public domain player for Amiga at http://www.honeypot.net/audio)
Diego Biurrun's avatar
Diego Biurrun committed
933
- current version now also compiles with older GCC (Fabrice)
Hetz Ben Hamo's avatar
Hetz Ben Hamo committed
934 935 936 937
- 4X multimedia playback system including 4xm file demuxer (Mike
  Melanson), and 4X video and audio codecs (Michael)
- Creative YUV (CYUV) decoder (Mike Melanson)
- FFV1 codec (our very simple lossless intra only codec, compresses much better
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  than HuffYUV) (Michael)
- ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
- tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
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  alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
- ffplay has been replaced with a newer version which uses SDL (optionally)
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  for multiplatform support (Fabrice)
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- Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
  by anonymous
- AMR format has been added (Johannes Carlsson)
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- 3GP support has been added (Johannes Carlsson)
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- VP3 codec has been added (Mike Melanson)
- more MPEG-1/2 fixes
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- better multiplatform support, MS Visual Studio fixes (various)
- AltiVec optimizations (Magnus Damn and others)
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- SH4 processor support has been added (BERO)
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- new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
- VOB streaming support (Brian Foley)
- better MP3 autodetection (Andriy Rysin)
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- qpel encoding (Michael)
- 4mv+b frames encoding finally fixed (Michael)
- chroma ME (Michael)
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- 5 comparison functions for ME (Michael)
- B-frame encoding speedup (Michael)
- WMV2 codec (unfinished - Michael)
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- user specified diamond size for EPZS (Michael)
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- Playstation STR playback subsystem, still experimental (Mike and Michael)
- ASV2 codec (Michael)
- CLJR decoder (Alex)
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.. And lots more new enhancements and fixes.
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version 0.4.6:
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- completely new integer only MPEG audio layer 1/2/3 decoder rewritten
  from scratch
- Recoded DCT and motion vector search with gcc (no longer depends on nasm)
- fix quantization bug in AC3 encoder
- added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
- added prototype ffplay program
- added GOB header parsing on H.263/H.263+ decoder (Juanjo)
- bug fix on MCBPC tables of H.263 (Juanjo)
- bug fix on DC coefficients of H.263 (Juanjo)
- added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
- now we can decode H.263 streams found in QuickTime files (Juanjo)
- now we can decode H.263 streams found in VIVO v1 files(Juanjo)
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- preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
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- added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
- now H.263 picture size is returned on the first decoded frame (Juanjo)
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- added first regression tests
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- added MPEG-2 TS demuxer
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- new demux API for libav
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- more accurate and faster IDCT (Michael)
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- faster and entropy-controlled motion search (Michael)
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- two pass video encoding (Michael)
- new video rate control (Michael)
- added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
- great performance improvement of video encoders and decoders (Michael)
- new and faster bit readers and vlc parsers (Michael)
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- high quality encoding mode: tries all macroblock/VLC types (Michael)
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- added DV video decoder
- preliminary RTP/RTSP support in ffserver and libavformat
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- H.263+ AIC decoding/encoding support (Juanjo)
- VCD MPEG-PS mode (Juanjo)
- PSNR stuff (Juanjo)
- simple stats output (Juanjo)
- 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
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version 0.4.5:

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- some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
- many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
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- added configure system (actually a small shell script)
- added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
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  Michael Hipp (temporary solution - waiting for integer only
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  decoder)
- fixed VIDIOCSYNC interrupt
- added Intel H.263 decoding support ('I263' AVI fourCC)
- added Real Video 1.0 decoding (needs further testing)
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- simplified image formats again. Added PGM format (=grey
  pgm). Renamed old PGM to PGMYUV.
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- fixed msmpeg4 slice issues (tell me if you still find problems)
- fixed OpenDivX bugs with newer versions (added VOL header decoding)
- added support for MPlayer interface
- added macroblock skip optimization
- added MJPEG decoder
- added mmx/mmxext IDCT from libmpeg2
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- added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
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  <celer at shell.scrypt.net>)
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- added pixel format conversion layer (e.g. for MJPEG or PPM)
- added deinterlacing option
- MPEG-1/2 fixes
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- MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
- ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
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- Windows porting of file converter
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- added MJPEG raw format (input/output)
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- added JPEG image format support (input/output)
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version 0.4.4:

- fixed some std header definitions (Bjorn Lindgren
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  <bjorn.e.lindgren at telia.com>).
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- added MPEG demuxer (MPEG-1 and 2 compatible).
- added ASF demuxer
- added prototype RM demuxer
- added AC3 decoding (done with libac3 by Aaron Holtzman)
- added decoding codec parameter guessing (.e.g. for MPEG, because the
  header does not include them)
- fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
  play them (only tested video)
- fixed H.263 white bug
- fixed phase rounding in img resample filter
- add MMX code for polyphase img resample filter
- added CPU autodetection
- added generic title/author/copyright/comment string handling (ASF and RM
  use them)
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- added SWF demux to extract MP3 track (not usable yet because no MP3
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  decoder)
- added fractional frame rate support
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- codecs are no longer searched by read_header() (should fix ffserver
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  segfault)
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version 0.4.3:

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- BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
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- fixed raw yuv output
- added motion rounding support in MPEG-4
- fixed motion bug rounding in MSMPEG4
- added B-frame handling in video core
- added full MPEG-1 decoding support
- added partial (frame only) MPEG-2 support
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- changed the FOURCC code for H.263 to "U263" to be able to see the
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  +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
  this +codec ;) (JuanJo).
- Halfpel motion estimation after MB type selection (JuanJo)
- added pgm and .Y.U.V output format
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- suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
  output.
- added pgmpipe I/O format (original patch from Martin Aumueller
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  <lists at reserv.at>, but changed completely since we use a format
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  instead of a protocol)
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version 0.4.2:

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- added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
  (for OpenDivX) is almost complete: 8x8 MVs and rounding are
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  missing. MSMPEG4 support is complete.
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- added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
  can decode ffmpeg MPEGs :-)).
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- added libavcodec API documentation (see apiexample.c).
- fixed image polyphase bug (the bottom of some images could be
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  greenish)
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- added support for non clipped motion vectors (decoding only)
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  and image sizes non-multiple of 16
- added support for AC prediction (decoding only)
- added file overwrite confirmation (can be disabled with -y)
- added custom size picture to H.263 using H.263+ (Juanjo)
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version 0.4.1:

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- added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
  of AVI and ASF to DIV3.
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- added -me option to set motion estimation method
  (default=log). suppressed redundant -hq option.
- added options -acodec and -vcodec to force a given codec (useful for
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  AVI for example)
- fixed -an option
- improved dct_quantize speed
- factorized some motion estimation code
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version 0.4.0:

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- removing grab code from ffserver and moved it to ffmpeg. Added
  multistream support to ffmpeg.
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- added timeshifting support for live feeds (option ?date=xxx in the
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  URL)
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- added high quality image resize code with polyphase filter (need
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  mmx/see optimization). Enable multiple image size support in ffserver.
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- added multi live feed support in ffserver
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- suppressed master feature from ffserver (it should be done with an
  external program which opens the .ffm url and writes it to another
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  ffserver)
- added preliminary support for video stream parsing (WAV and AVI half
  done). Added proper support for audio/video file conversion in
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  ffmpeg.
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- added preliminary support for video file sending from ffserver
- redesigning I/O subsystem: now using URL based input and output
  (see avio.h)
- added WAV format support
- added "tty user interface" to ffmpeg to stop grabbing gracefully
- added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
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  (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
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- added MMX DCT from mpeg2_movie 1.5 (Juanjo)
- added new motion estimation algorithms, log and phods (Juanjo)
- changed directories: libav for format handling, libavcodec for
  codecs
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version 0.3.4:

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- added stereo in MPEG audio encoder
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version 0.3.3:

- added 'high quality' mode which use motion vectors. It can be used in
  real time at low resolution.
- fixed rounding problems which caused quality problems at high
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  bitrates and large GOP size
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version 0.3.2: small fixes

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- ASF fixes
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- put_seek bug fix

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version 0.3.1: added avi/divx support

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- added AVI support
- added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
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- added sound for flash format (not tested)

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version 0.3: initial public release