FFmpeg 7.1 "Péter", a new major release, is now available! A full list of changes can be found in the release changelog.

The more important highlights of the release are that the VVC decoder, merged as experimental in version 7.0, has had enough time to mature and be optimized enough to be declared as stable. The codec is starting to gain traction with broadcast standardization bodies.
Support has been added for a native AAC USAC (part of the xHE-AAC coding system) decoder, with the format starting to be adopted by streaming websites, due to its extensive volume normalization metadata.
MV-HEVC decoding is now supported. This is a stereoscopic coding tool that begun to be shipped and generated by recent phones and VR headsets.
LC-EVC decoding, an enhancement metadata layer to attempt to improve the quality of codecs, is now supported via an external library.

Support for Vulkan encoding, with H264 and HEVC was merged. This finally allows fully Vulkan-based decode-filter-encode pipelines, by having a sink for Vulkan frames, other than downloading or displaying them. The encoders have feature-parity with their VAAPI implementation counterparts. Khronos has announced that support for AV1 encoding is also coming soon to Vulkan, and FFmpeg is aiming to have day-one support.

In addition to the above, this release has had a lot of important internal work done. By far, the standout internally are the improvements made for full-range images. Previously, color range data had two paths, no negotiation, and was unreliably forwarded to filters, encoders, muxers. Work on cleaning the system up started more than 10 years ago, however this stalled due to how fragile the system was, and that breaking behaviour would be unacceptable. The new system fixes this, so now color range is forwarded correctly and consistently everywhere needed, and also laid the path for more advanced forms of negotiation.
Cropping metadata is now supported with Matroska and MP4 formats. This metadata is important not only for archival, but also with AV1, as hardware encoders require its signalling due to the codec not natively supporting one.

As usual, we recommend that users, distributors, and system integrators to upgrade unless they use current git master.

The number of issues FFmpeg has in Coverity (a static analyzer) is now lower than it has been since 2016. Our defect density is less than one 30th of the average in OSS with over a million code lines. All this was possible thanks to a grant from the Sovereign Tech Fund.

FFmpeg now implements a native xHE-AAC decoder. Currently, streams without (e)SBR, USAC or MPEG-H Surround are supported, which means the majority of xHE-AAC streams in use should work. Support for USAC and (e)SBR is coming soon. Work is also ongoing to improve its stability and compatibility. During the process we found several specification issues, which were then submitted back to the authors for discussion and potential inclusion in a future errata.

The FFmpeg community is excited to announce that Germany's Sovereign Tech Fund has become its first governmental sponsor. Their support will help sustain the maintainance of the FFmpeg project, a critical open-source software multimedia component essential to bringing audio and video to billions around the world everyday.

A new major release, FFmpeg 7.0 "Dijkstra", is now available for download. The most noteworthy changes for most users are a native VVC decoder (currently experimental, until more fuzzing is done), IAMF support, or a multi-threaded ffmpeg CLI tool.

This release is not backwards compatible, removing APIs deprecated before 6.0. The biggest change for most library callers will be the removal of the old bitmask-based channel layout API, replaced by the AVChannelLayout API allowing such features as custom channel ordering, or Ambisonics. Certain deprecated ffmpeg CLI options were also removed, and a C11-compliant compiler is now required to build the code.

As usual, there is also a number of new supported formats and codecs, new filters, APIs, and countless smaller features and bugfixes. Compared to 6.1, the git repository contains almost ∼2000 new commits by ∼100 authors, touching >100000 lines in ∼2000 files — thanks to everyone who contributed. See the Changelog, APIchanges, and the git log for more comprehensive lists of changes.

The libavcodec library now contains a native VVC (Versatile Video Coding) decoder, supporting a large subset of the codec's features. Further optimizations and support for more features are coming soon. The code was written by Nuo Mi, Xu Mu, Frank Plowman, Shaun Loo, and Wu Jianhua.

The libavformat library can now read and write IAMF (Immersive Audio) files. The ffmpeg CLI tool can configure IAMF structure with the new -stream_group option. IAMF support was written by James Almer.

Thanks to a major refactoring of the ffmpeg command-line tool, all the major components of the transcoding pipeline (demuxers, decoders, filters, encodes, muxers) now run in parallel. This should improve throughput and CPU utilization, decrease latency, and open the way to other exciting new features.

Note that you should not expect significant performance improvements in cases where almost all computational time is spent in a single component (typically video encoding).

FFmpeg 6.1 "Heaviside", a new major release, is now available! Some of the highlights:

• libaribcaption decoder
• Playdate video decoder and demuxer
• Extend VAAPI support for libva-win32 on Windows
• afireqsrc audio source filter
• arls filter
• ffmpeg CLI new option: -readrate_initial_burst
• zoneplate video source filter
• command support in the setpts and asetpts filters
• Vulkan decode hwaccel, supporting H264, HEVC and AV1
• color_vulkan filter
• bwdif_vulkan filter
• nlmeans_vulkan filter
• RivaTuner video decoder
• xfade_vulkan filter
• vMix video decoder
• Essential Video Coding parser, muxer and demuxer
• Essential Video Coding frame merge bsf
• bwdif_cuda filter
• Microsoft RLE video encoder
• Raw AC-4 muxer and demuxer
• Raw VVC bitstream parser, muxer and demuxer
• Bitstream filter for editing metadata in VVC streams
• Bitstream filter for converting VVC from MP4 to Annex B
• scale_vt filter for videotoolbox
• transpose_vt filter for videotoolbox
• support for the P_SKIP hinting to speed up libx264 encoding
• Support HEVC,VP9,AV1 codec in enhanced flv format
• apsnr and asisdr audio filters
• OSQ demuxer and decoder
• Support HEVC,VP9,AV1 codec fourcclist in enhanced rtmp protocol
• CRI USM demuxer
• ffmpeg CLI '-top' option deprecated in favor of the setfield filter
• VAAPI AV1 encoder
• ffprobe XML output schema changed to account for multiple variable-fields elements within the same parent element
• ffprobe -output_format option added as an alias of -of

This release had been overdue for at least half a year, but due to constant activity in the repository, had to be delayed, and we were finally able to branch off the release recently, before some of the large changes scheduled for 7.0 were merged.

Internally, we have had a number of changes too. The FFT, MDCT, DCT and DST implementation used for codecs and filters has been fully replaced with the faster libavutil/tx (full article about it coming soon).
This also led to a reduction in the the size of the compiled binary, which can be noticeable in small builds.
There was a very large reduction in the total amount of allocations being done on each frame throughout video decoders, reducing overhead.
RISC-V optimizations for many parts of our DSP code have been merged, with mainly the large decoders being left.
There was an effort to improve the correctness of timestamps and frame durations of each packet, increasing the accurracy of variable frame rate video.

Next major release will be version 7.0, scheduled to be released in February. We will attempt to better stick to the new release schedule we announced at the start of this year.

We strongly recommend users, distributors, and system integrators to upgrade unless they use current git master.

A few days ago, Vulkan-powered decoding hardware acceleration code was merged into the codebase. This is the first vendor-generic and platform-generic decode acceleration API, enabling the same code to be used on multiple platforms, with very minimal overhead. This is also the first multi-threaded hardware decoding API, and our code makes full use of this, saturating all available decode engines the hardware exposes.

Those wishing to test the code can read our documentation page. For those who would like to integrate FFmpeg's Vulkan code to demux, parse, decode, and receive a VkImage to present or manipulate, documentation and examples are available in our source tree. Currently, using the latest available git checkout of our repository is required. The functionality will be included in stable branches with the release of version 6.1, due to be released soon.

As this is also the first practical implementation of the specifications, bugs may be present, particularly in drivers, and, although passing verification, the implementation itself. New codecs, and encoding support are also being worked on, by both the Khronos organization for standardizing, and us as implementing it, and giving feedback on improving.

A new major release, FFmpeg 6.0 "Von Neumann", is now available for download. This release has many new encoders and decoders, filters, ffmpeg CLI tool improvements, and also, changes the way releases are done. All major releases will now bump the version of the ABI. We plan to have a new major release each year. Another release-specific change is that deprecated APIs will be removed after 3 releases, upon the next major bump. This means that releases will be done more often and will be more organized.

New decoders featured are Bonk, RKA, Radiance, SC-4, APAC, VQC, WavArc and a few ADPCM formats. QSV and NVenc now support AV1 encoding. The FFmpeg CLI (we usually reffer to it as ffmpeg.c to avoid confusion) has speed-up improvements due to threading, as well as statistics options, and the ability to pass option values for filters from a file. There are quite a few new audio and video filters, such as adrc, showcwt, backgroundkey and ssim360, with a few hardware ones too. Finally, the release features many behind-the-scenes changes, including a new FFT and MDCT implementation used in codecs (expect a blog post about this soon), numerous bugfixes, better ICC profile handling and colorspace signalling improvement, introduction of a number of RISC-V vector and scalar assembly optimized routines, and a few new improved APIs, which can be viewed in the doc/APIchanges file in our tree. A few submitted features, such as the Vulkan improvements and more FFT optimizations will be in the next minor release, 6.1, which we plan to release soon, in line with our new release schedule. Some highlights are:

• Radiance HDR image support
• ddagrab (Desktop Duplication) video capture filter
• ffmpeg -shortest_buf_duration option
• ffmpeg now requires threading to be built
• ffmpeg now runs every muxer in a separate thread
• Add new mode to cropdetect filter to detect crop-area based on motion vectors and edges
• VAAPI decoding and encoding for 10/12bit 422, 10/12bit 444 HEVC and VP9
• WBMP (Wireless Application Protocol Bitmap) image format
• a3dscope filter
• bonk decoder and demuxer
• Micronas SC-4 audio decoder
• LAF demuxer
• APAC decoder and demuxer
• Media 100i decoders
• DTS to PTS reorder bsf
• ViewQuest VQC decoder
• backgroundkey filter
• nvenc AV1 encoding support
• MediaCodec decoder via NDKMediaCodec
• MediaCodec encoder
• oneVPL support for QSV
• QSV AV1 encoder
• QSV decoding and encoding for 10/12bit 422, 10/12bit 444 HEVC and VP9
• showcwt multimedia filter
• corr video filter
• adrc audio filter
• afdelaysrc audio filter
• WADY DPCM decoder and demuxer
• CBD2 DPCM decoder
• ssim360 video filter
• ffmpeg CLI new options: -stats_enc_pre[_fmt], -stats_enc_post[_fmt], -stats_mux_pre[_fmt]
• hstack_vaapi, vstack_vaapi and xstack_vaapi filters
• XMD ADPCM decoder and demuxer
• media100 to mjpegb bsf
• ffmpeg CLI new option: -fix_sub_duration_heartbeat
• WavArc decoder and demuxer
• CrystalHD decoders deprecated
• SDNS demuxer
• RKA decoder and demuxer
• filtergraph syntax in ffmpeg CLI now supports passing file contents as option values
• hstack_qsv, vstack_qsv and xstack_qsv filters

We strongly recommend users, distributors, and system integrators to upgrade unless they use current git master.

FFmpeg 5.1 "Riemann", a new major release, is now available! Some of the highlights:

• add ipfs/ipns protocol support
• dialogue enhance audio filter
• dropped obsolete XvMC hwaccel
• pcm-bluray encoder
• DFPWM audio encoder/decoder and raw muxer/demuxer
• SITI filter
• Vizrt Binary Image encoder/decoder
• avsynctest source filter
• feedback video filter
• pixelize video filter
• colormap video filter
• colorchart video source filter
• multiply video filter
• PGS subtitle frame merge bitstream filter
• blurdetect filter
• tiltshelf audio filter
• QOI image format support
• ffprobe -o option
• virtualbass audio filter
• VDPAU AV1 hwaccel
• PHM image format support
• remap_opencl filter
• added chromakey_cuda filter

We strongly recommend users, distributors, and system integrators to upgrade unless they use current git master.

FFmpeg 5.0 "Lorentz", a new major release, is now available! For this long-overdue release, a major effort underwent to remove the old encode/decode APIs and replace them with an N:M-based API, the entire libavresample library was removed, libswscale has a new, easier to use AVframe-based API, the Vulkan code was much improved, many new filters were added, including libplacebo integration, and finally, DoVi support was added, including tonemapping and remuxing. The default AAC encoder settings were also changed to improve quality. Some of the changelog highlights:

• ADPCM IMA Westwood encoder
• Westwood AUD muxer
• ADPCM IMA Acorn Replay decoder
• Argonaut Games CVG demuxer
• Argonaut Games CVG muxer
• Concatf protocol
• afwtdn audio filter
• audio and video segment filters
• Apple Graphics (SMC) encoder
• hsvkey and hsvhold video filters
• adecorrelate audio filter
• atilt audio filter
• grayworld video filter
• AV1 Low overhead bitstream format muxer
• swscale slice threading
• MSN Siren decoder
• scharr video filter
• apsyclip audio filter
• morpho video filter
• amr parser
• (a)latency filters
• GEM Raster image decoder
• asdr audio filter
• speex decoder
• limitdiff video filter
• xcorrelate video filter
• varblur video filter
• huesaturation video filter
• colorspectrum source video filter
• RTP packetizer for uncompressed video (RFC 4175)
• bitpacked encoder
• VideoToolbox VP9 hwaccel
• VideoToolbox ProRes hwaccel
• support loongarch.
• aspectralstats audio filter
• adynamicsmooth audio filter
• libplacebo filter
• vflip_vulkan, hflip_vulkan and flip_vulkan filters
• adynamicequalizer audio filter
• yadif_videotoolbox filter
• VideoToolbox ProRes encoder
• anlmf audio filter

We strongly recommend users, distributors, and system integrators to upgrade unless they use current git master.

We have a new IRC home at Libera Chat now! Feel free to join us at #ffmpeg and #ffmpeg-devel. More info at contact#IRCChannels

FFmpeg 4.4 "Rao", a new major release, is now available! Some of the highlights:

• AudioToolbox output device
• MacCaption demuxer
• PGX decoder
• chromanr video filter
• VDPAU accelerated HEVC 10/12bit decoding
• ADPCM IMA Ubisoft APM encoder
• Rayman 2 APM muxer
• AV1 encoding support SVT-AV1
• Cineform HD encoder
• ADPCM Argonaut Games encoder
• Argonaut Games ASF muxer
• AV1 Low overhead bitstream format demuxer
• RPZA video encoder
• ADPCM IMA MOFLEX decoder
• MobiClip FastAudio decoder
• MobiClip video decoder
• MOFLEX demuxer
• MODS demuxer
• PhotoCD decoder
• MCA demuxer
• AV1 decoder (Hardware acceleration used only)
• SVS demuxer
• Argonaut Games BRP demuxer
• DAT demuxer
• aax demuxer
• IPU decoder, parser and demuxer
• Intel QSV-accelerated AV1 decoding
• Argonaut Games Video decoder
• libwavpack encoder removed
• ACE demuxer
• AVS3 demuxer
• AVS3 video decoder via libuavs3d
• Cintel RAW decoder
• VDPAU accelerated VP9 10/12bit decoding
• afreqshift and aphaseshift filters
• High Voltage Software ADPCM encoder
• LEGO Racers ALP (.tun & .pcm) muxer
• AV1 VAAPI decoder
• adenorm filter
• ADPCM IMA AMV encoder
• AMV muxer
• NVDEC AV1 hwaccel
• DXVA2/D3D11VA hardware accelerated AV1 decoding
• speechnorm filter
• SpeedHQ encoder
• asupercut filter
• asubcut filter
• Microsoft Paint (MSP) version 2 decoder
• Microsoft Paint (MSP) demuxer
• AV1 monochrome encoding support via libaom >= 2.0.1
• asuperpass and asuperstop filter
• shufflepixels filter
• tmidequalizer filter
• estdif filter
• epx filter
• Dolby E parser
• shear filter
• kirsch filter
• colortemperature filter
• colorcontrast filter
• PFM encoder
• colorcorrect filter
• binka demuxer
• XBM parser
• xbm_pipe demuxer
• colorize filter
• CRI parser
• aexciter audio filter
• exposure video filter
• monochrome video filter
• setts bitstream filter
• vif video filter
• OpenEXR image encoder
• Simbiosis IMX decoder
• Simbiosis IMX demuxer
• Digital Pictures SGA demuxer and decoders
• TTML subtitle encoder and muxer
• identity video filter
• msad video filter
• gophers protocol
• RIST protocol via librist

We strongly recommend users, distributors, and system integrators to upgrade unless they use current git master.

FFmpeg 4.3 "4:3", a new major release, is now available! Some of the highlights:

• v360 filter
• Intel QSV-accelerated MJPEG decoding
• Intel QSV-accelerated VP9 decoding
• Support for TrueHD in mp4
• Support AMD AMF encoder on Linux (via Vulkan)
• IMM5 video decoder
• ZeroMQ protocol
• support Sipro ACELP.KELVIN decoding
• streamhash muxer
• sierpinski video source
• scroll video filter
• photosensitivity filter
• anlms filter
• arnndn filter
• bilateral filter
• maskedmin and maskedmax filters
• VDPAU VP9 hwaccel
• median filter
• QSV-accelerated VP9 encoding
• AV1 encoding support via librav1e
• AV1 frame merge bitstream filter
• AV1 Annex B demuxer
• axcorrelate filter
• mvdv decoder
• mvha decoder
• MPEG-H 3D Audio support in mp4
• thistogram filter
• freezeframes filter
• Argonaut Games ADPCM decoder
• Argonaut Games ASF demuxer
• xfade video filter
• xfade_opencl filter
• afirsrc audio filter source
• pad_opencl filter
• Simon & Schuster Interactive ADPCM decoder
• Real War KVAG demuxer
• CDToons video decoder
• siren audio decoder
• Rayman 2 ADPCM decoder
• Rayman 2 APM demuxer
• cas video filter
• High Voltage Software ADPCM decoder
• LEGO Racers ALP (.tun & .pcm) demuxer
• AMQP 0-9-1 protocol (RabbitMQ)
• Vulkan support
• avgblur_vulkan, overlay_vulkan, scale_vulkan and chromaber_vulkan filters
• ADPCM IMA MTF decoder
• FWSE demuxer
• DERF DPCM decoder
• DERF demuxer
• CRI HCA decoder
• CRI HCA demuxer
• overlay_cuda filter
• switch from AvxSynth to AviSynth+ on Linux
• mv30 decoder
• Expanded styling support for 3GPP Timed Text Subtitles (movtext)
• WebP parser
• tmedian filter
• maskedthreshold filter
• Support for muxing pcm and pgs in m2ts
• Cunning Developments ADPCM decoder
• asubboost filter
• Pro Pinball Series Soundbank demuxer
• pcm_rechunk bitstream filter
• scdet filter
• NotchLC decoder
• gradients source video filter
• MediaFoundation encoder wrapper
• untile filter
• Simon & Schuster Interactive ADPCM encoder
• PFM decoder
• dblur video filter
• Real War KVAG muxer

We strongly recommend users, distributors, and system integrators to upgrade unless they use current git master.

FFmpeg has added a realtime bright flash removal filter to libavfilter.

Note that this filter is not FDA approved, nor are we medical professionals. Nor has this filter been tested with anyone who has photosensitive epilepsy. FFmpeg and its photosensitivity filter are not making any medical claims.

That said, this is a new video filter that may help photosensitive people watch tv, play video games or even be used with a VR headset to block out epiletic triggers such as filtered sunlight when they are outside. Or you could use it against those annoying white flashes on your tv screen. The filter fails on some input, such as the Incredibles 2 Screen Slaver scene. It is not perfect. If you have other clips that you want this filter to work better on, please report them to us on our trac.

See for yourself. Example was made with -vf photosensitivity=20:0.8

We are not professionals. Please use this in your medical studies to advance epilepsy research. If you decide to use this in a medical setting, or make a hardware hdmi input output realtime tv filter, or find another use for this, please let me know. This filter was a feature request of mine since 2013.

FFmpeg 4.2 "Ada", a new major release, is now available! Some of the highlights:

• tpad filter
• AV1 decoding support through libdav1d
• dedot filter
• chromashift and rgbashift filters
• freezedetect filter
• truehd_core bitstream filter
• dhav demuxer
• PCM-DVD encoder
• GIF parser
• vividas demuxer
• hymt decoder
• anlmdn filter
• maskfun filter
• hcom demuxer and decoder
• ARBC decoder
• libaribb24 based ARIB STD-B24 caption support (profiles A and C)
• Support decoding of HEVC 4:4:4 content in nvdec and cuviddec
• removed libndi-newtek
• agm decoder
• KUX demuxer
• AV1 frame split bitstream filter
• lscr decoder
• lagfun filter
• asoftclip filter
• Support decoding of HEVC 4:4:4 content in vdpau
• colorhold filter
• xmedian filter
• asr filter
• showspatial multimedia filter
• VP4 video decoder
• IFV demuxer
• derain filter
• deesser filter
• mov muxer writes tracks with unspecified language instead of English by default
• added support for using clang to compile CUDA kernels

We strongly recommend users, distributors, and system integrators to upgrade unless they use current git master.

FFmpeg 4.1 "al-Khwarizmi", a new major release, is now available! Some of the highlights:

• deblock filter
• tmix filter
• amplify filter
• fftdnoiz filter
• aderivative and aintegral audio filters
• pal75bars and pal100bars video filter sources
• mbedTLS based TLS support
• adeclick and adeclip filters
• libtensorflow backend for DNN based filters like srcnn
• VC1 decoder is now bit-exact
• ATRAC9 decoder
• lensfun wrapper filter
• colorconstancy filter
• AVS2 video decoder via libdavs2
• IMM4 video decoder
• Brooktree ProSumer video decoder
• MatchWare Screen Capture Codec decoder
• WinCam Motion Video decoder
• 1D LUT filter (lut1d)
• RemotelyAnywhere Screen Capture decoder
• cue and acue filters
• Support for AV1 in MP4 and Matroska/WebM
• transpose_npp filter
• AVS2 video encoder via libxavs2
• amultiply filter
• Block-Matching 3d (bm3d) denoising filter
• acrossover filter
• ilbc decoder
• audio denoiser as afftdn filter
• AV1 parser
• sinc audio filter source
• chromahold filter
• setparams filter
• vibrance filter
• S12M timecode decoding in h264
• xstack filter
• (a)graphmonitor filter
• yadif_cuda filter

We strongly recommend users, distributors, and system integrators to upgrade unless they use current git master.

FFmpeg 4.0 "Wu", a new major release, is now available! Some of the highlights:

• Bitstream filters for editing metadata in H.264, HEVC and MPEG-2 streams
• Experimental MagicYUV encoder
• TiVo ty/ty+ demuxer
• Intel QSV-accelerated MJPEG encoding
• native aptX and aptX HD encoder and decoder
• NVIDIA NVDEC-accelerated H.264, HEVC, MJPEG, MPEG-1/2/4, VC1, VP8/9 hwaccel decoding
• Intel QSV-accelerated overlay filter
• mcompand audio filter
• acontrast audio filter
• OpenCL overlay filter
• video mix filter
• video normalize filter
• audio lv2 wrapper filter
• VAAPI MJPEG and VP8 decoding
• AMD AMF H.264 and HEVC encoders
• video fillborders filter
• video setrange filter
• support LibreSSL (via libtls)
• Dropped support for building for Windows XP. The minimum supported Windows version is Windows Vista.
• deconvolve video filter
• entropy video filter
• hilbert audio filter source
• aiir audio filter
• Removed the ffserver program
• Removed the ffmenc and ffmdec muxer and demuxer
• VideoToolbox HEVC encoder and hwaccel
• VAAPI-accelerated ProcAmp (color balance), denoise and sharpness filters
• Add android_camera indev
• codec2 en/decoding via libcodec2
• native SBC encoder and decoder
• drmeter audio filter
• hapqa_extract bitstream filter
• filter_units bitstream filter
• AV1 Support through libaom
• E-AC-3 dependent frames support
• bitstream filter for extracting E-AC-3 core
• Haivision SRT protocol via libsrt
• vfrdet filter

We strongly recommend users, distributors, and system integrators to upgrade unless they use current git master.

FFmpeg 3.4 "Cantor", a new major release, is now available! Some of the highlights:

• deflicker video filter
• doubleweave video filter
• lumakey video filter
• pixscope video filter
• oscilloscope video filter
• update cuvid/nvenc headers to Video Codec SDK 8.0.14
• afir audio filter
• scale_cuda CUDA based video scale filter
• librsvg support for svg rasterization
• crossfeed audio filter
• spec compliant VP9 muxing support in MP4
• surround audio filter
• sofalizer filter switched to libmysofa
• Gremlin Digital Video demuxer and decoder
• headphone audio filter
• superequalizer audio filter
• roberts video filter
• additional frame format support for Interplay MVE movies
• support for decoding through D3D11VA in ffmpeg
• limiter video filter
• libvmaf video filter
• Dolby E decoder and SMPTE 337M demuxer
• unpremultiply video filter
• tlut2 video filter
• floodfill video filter
• pseudocolor video filter
• raw G.726 muxer and demuxer, left- and right-justified
• NewTek NDI input/output device
• FITS demuxer and decoder
• FITS muxer and encoder
• despill video filter
• haas audio filter
• SUP/PGS subtitle muxer
• convolve video filter
• VP9 tile threading support
• KMS screen grabber
• CUDA thumbnail filter
• V4L2 mem2mem HW assisted codecs
• Rockchip MPP hardware decoding
• vmafmotion video filter

We strongly recommend users, distributors, and system integrators to upgrade unless they use current git master.

FFmpeg 3.3 "Hilbert", a new major release, is now available! Some of the highlights:

• Apple Pixlet decoder
• NewTek SpeedHQ decoder
• QDMC audio decoder
• PSD (Photoshop Document) decoder
• FM Screen Capture decoder
• ScreenPressor decoder
• XPM decoder
• DNxHR decoder fixes for HQX and high resolution videos
• ClearVideo decoder (partial)
• 16.8 and 24.0 floating point PCM decoder
• Intel QSV-accelerated VP8 video decoding
• native Opus encoder
• DNxHR 444 and HQX encoding
• Quality improvements for the (M)JPEG encoder
• VAAPI-accelerated MPEG-2 and VP8 encoding
• premultiply video filter
• abitscope multimedia filter
• readeia608 filter
• threshold filter
• midequalizer filter
• MPEG-7 Video Signature filter
• add internal ebur128 library, remove external libebur128 dependency
• Intel QSV video scaling and deinterlacing filters
• Sample Dump eXchange demuxer
• MIDI Sample Dump Standard demuxer
• Scenarist Closed Captions demuxer and muxer
• Support MOV with multiple sample description tables
• Pro-MPEG CoP #3-R2 FEC protocol
• Support for spherical videos
• CrystalHD decoder moved to new decode API
• configure now fails if autodetect-libraries are requested but not found

We strongly recommend users, distributors, and system integrators to upgrade unless they use current git master.

This has been a long time coming but we wanted to give a proper closure to our participation in this run of the program and it takes time. Sometimes it's just to get the final report for each project trimmed down, others, is finalizing whatever was still in progress when the program finished: final patches need to be merged, TODO lists stabilized, future plans agreed; you name it.

Without further ado, here's the silver-lining for each one of the projects we sought to complete during this Summer of Code season:

FFv1 (Mentor: Michael Niedermayer)

Stanislav Dolganov designed and implemented experimental support for motion estimation and compensation in the lossless FFV1 codec. The design and implementation is based on the snow video codec, which uses OBMC. Stanislav's work proved that significant compression gains can be achieved with inter frame compression. FFmpeg welcomes Stanislav to continue working beyond this proof of concept and bring its advances into the official FFV1 specification within the IETF.

Self test coverage (Mentor: Michael Niedermayer)

Petru Rares Sincraian added several self-tests to FFmpeg and successfully went through the in-some-cases tedious process of fine tuning tests parameters to avoid known and hard to avoid problems, like checksum mismatches due to rounding errors on the myriad of platforms we support. His work has improved the code coverage of our self tests considerably.

MPEG-4 ALS encoder implementation (Mentor: Thilo Borgmann)

Umair Khan updated and integrated the ALS encoder to fit in the current FFmpeg codebase. He also implemented a missing feature for the ALS decoder that enables floating-point sample decoding. FFmpeg support for MPEG-4 ALS has been improved significantly by Umair's work. We welcome him to keep maintaining his improvements and hope for great contributions to come.

Tee muxer improvements (Mentor: Marton Balint)

Ján Sebechlebský's generic goal was to improve the tee muxer so it tolerated blocking IO and allowed transparent error recovery. During the design phase it turned out that this functionality called for a separate muxer, so Ján spent his summer working on the so-called FIFO muxer, gradually fixing issues all over the codebase. He succeeded in his task, and the FIFO muxer is now part of the main repository, alongside several other improvements he made in the process.

TrueHD encoder (Mentor: Rostislav Pehlivanov)

Jai Luthra's objective was to update the out-of-tree and pretty much abandoned MLP (Meridian Lossless Packing) encoder for libavcodec and improve it to enable encoding to the TrueHD format. For the qualification period the encoder was updated such that it was usable and throughout the summer, successfully improved adding support for multi-channel audio and TrueHD encoding. Jai's code has been merged into the main repository now. While a few problems remain with respect to LFE channel and 32 bit sample handling, these are in the process of being fixed such that effort can be finally put in improving the encoder's speed and efficiency.

Motion interpolation filter (Mentor: Paul B Mahol)

Davinder Singh investigated existing motion estimation and interpolation approaches from the available literature and previous work by our own: Michael Niedermayer, and implemented filters based on this research. These filters allow motion interpolating frame rate conversion to be applied to a video, for example, to create a slow motion effect or change the frame rate while smoothly interpolating the video along the motion vectors. There's still work to be done to call these filters 'finished', which is rather hard all things considered, but we are looking optimistically at their future.

And that's it. We are happy with the results of the program and immensely thankful for the opportunity of working with such an amazing set of students. We can be a tough crowd but our mentors did an amazing job at hand holding our interns through their journey. Thanks also to Google for this wonderful program and to everyone that made room in their busy lives to help making GSoC2016 a success. See you in 2017!

Support for the SDL1 library has been dropped, due to it no longer being maintained (as of January, 2012) and it being superseded by the SDL2 library. As a result, the SDL1 output device has also been removed and replaced by an SDL2 implementation. Both the ffplay and opengl output devices have been updated to support SDL2.

FFmpeg 3.1.2, a new point release from the 3.1 release branch, is now available! It fixes several bugs.

We recommend users, distributors, and system integrators, to upgrade unless they use current git master.

After thorough deliberation, we're announcing that we're about to drop the ffserver program from the project starting with the next release. ffserver has been a problematic program to maintain due to its use of internal APIs, which complicated the recent cleanups to the libavformat library, and block further cleanups and improvements which are desired by API users and will be easier to maintain. Furthermore the program has been hard for users to deploy and run due to reliability issues, lack of knowledgable people to help and confusing configuration file syntax. Current users and members of the community are invited to write a replacement program to fill the same niche that ffserver did using the new APIs and to contact us so we may point users to test and contribute to its development.

FFmpeg 3.1.1, a new point release from the 3.1 release branch, is now available! It mainly deals with a few ABI issues introduced in the previous release.

We strongly recommend users, distributors, and system integrators, especially those who experienced issues upgrading from 3.0, to upgrade unless they use current git master.

FFmpeg 3.1 "Laplace", a new major release, is now available! Some of the highlights:

• 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

We strongly recommend users, distributors, and system integrators to upgrade unless they use current git master.

FFmpeg has been accepted as a Google Summer of Code open source organization. If you wish to participate as a student see our project ideas page. You can already get in contact with mentors and start working on qualification tasks as well as register at google and submit your project proposal draft. Good luck!

FFmpeg 3.0 "Einstein", a new major release, is now available! Some of the highlights:

• The native FFmpeg AAC encoder has seen extensive improvements and is no longer considered experimental
• Removed support for libvo-aacenc and libaacplus
• Over 30 new filters have been added
• Many ASM optimizations
• VP9 Hardware Acceleration (DXVA2 and VA-API)
• Cineform HD decoder
• New DCA decoder based on libdcadec with full support for DTS-HD extensions
• As with all major releases expect major backward incompatible API/ABI changes
• See the Changelog for a list of more updates

We strongly recommend users, distributors, and system integrators to upgrade unless they use current git master.