X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=RELEASE_NOTES;h=eb73e8890b137b055f143d974a130bd3b4844914;hb=ec33df60457d95e174c51666cb799e48c55facb0;hp=1e6289b58a6709d4dd005cbda1f8b909dc127c0c;hpb=2e2e6b1be5913f64830cae1538696601c61c80d0;p=ffmpeg diff --git a/RELEASE_NOTES b/RELEASE_NOTES index 1e6289b58a6..eb73e8890b1 100644 --- a/RELEASE_NOTES +++ b/RELEASE_NOTES @@ -1,175 +1,51 @@ ┌───────────────────────────────────────────┐ - │ RELEASE NOTES for FFmpeg 2.3 "Mandelbrot" │ + │ RELEASE NOTES for FFmpeg "FIXME" │ └───────────────────────────────────────────┘ - The FFmpeg Project proudly presents FFmpeg 2.3 "Mandelbrot", a major - release with all the great features committed during the three-month period - since the release of FFmpeg 2.2. - - In this release, there are lots of internal overhauls that make FFmpeg a - more accessible project for new developers. Many important new features - like QTKit and AVFoundation input devices are committed. Contributions done - by Libav such as a new native Opus decoder are also merged. - - Because of the increasing difficulty to maintain and lack of maintainers, - we are very sorry to say that we have removed all Blackfin and SPARC - architecture assembly optimizations with the cleanups done. If you are - interested in maintaining optimization for these two architecture, feel - free to contact us and we will restore the code! - - Since this release, the traditional Changelog file is upgraded to this - modern-looking release note. Old changelogs are moved to doc/Changelog.old. - - Enjoy! + The FFmpeg Project proudly presents FFmpeg "FIXME", ... ┌────────────────────────────┐ │ * API Information │ └────────────────────────────┘ - FFmpeg 2.3 is completely source-compatible to the FFmpeg 2.2 series. There - are however some API deprecations that you need to take care of. Use `git - diff n2.2 n2.3 doc/APIchanges` to show the list of added and deprecated - APIs. FFmpeg 2.3 includes the following library versions: + FFmpeg includes the following library versions: - • libavutil 52.92.100 - • libavcodec 55.69.100 - • libavformat 55.47.100 - • libavdevice 55.13.102 - • libavfilter 4.10.100 - • libswscale 2. 6.100 - • libswresample 0.19.100 - • libpostproc 52. 3.100 + • libavutil xx.yy.1zz + • libavcodec xx.yy.1zz + • libavformat xx.yy.1zz + • libavdevice xx.yy.1zz + • libavfilter xx.yy.1zz + • libswscale xx.yy.1zz + • libswresample xx.yy.1zz + • libpostproc xx.yy.1zz Please refer to the doc/APIChanges file for more information. - ┌────────────────────────────┐ - │ New Optimization │ - └────────────────────────────┘ - - We are excited to announce that we have committed new x86 assembly - optimization for HEVC, and FFmpeg's audio resampler libswresample. ARM - users will get a boost in MLP/TrueHD decoding thanks to new optimization. - Decoding Huffyuv also got a major boost from optimization on the C code. - - Of special interest for Microsoft Visual Studio users, we have also - converted some preexisting x86 assembly to NASM/Yasm format compatible - with MSVC setup, especially in the area of audio resampling. - - Another major feature in this release is the introduction of AArch64 - (ARMv8) assembly optimization. AArch64 is another name for the first - 64-bit ARM architecture, used by Apple A7 SoC inside iPhone 5S. Some - 32-bit ARM assembly has already been ported to AArch64, but more work is - underway. - - ┌────────────────────────────┐ - │ Native Opus decoder │ - └────────────────────────────┘ - - Opus is an open audio format jointly developed by Xiph.Org, Mozilla, - Skype/Microsoft, and Broadcom. It combines the features of the Skype Cilk - speech codec and the Xiph.Org CELT music codec into one low-latency - codec. Decoding Opus is already possible since FFmpeg 1.0 using the - libopus library, but the new Opus native decoder brings a higher level of - stability and speed. - - ┌────────────────────────────┐ - │ QTKit and AVFoundation │ - └────────────────────────────┘ - - For OS X users, the new QTKit and AVFoundation devices allow you to use - the integrated camera on Macs. AVFoundation is a newer API only available - on OS X 10.7 "Lion" or newer. For users with older OS X systems, the - QTKit device using the older OS X API is for you. - - ┌────────────────────────────┐ - │ API Additions │ - └────────────────────────────┘ - - In this release, stream side data are introduced as AVStream.side_data as - a way to store miscellaneous stream-wide information. The format is - similar to the previously anonymous structure AVPacket.side_data (now - named as AVPacketSideData). With this change, audio ReplayGain - information and video rotation matrix are now exported through this API, - if available in the demuxer. - - We also have improved libswresample's Doxygen API documentation, so new - developers wishing to use FFmpeg's excellent libraries can get started - more easily and faster. - - ┌────────────────────────────┐ - │ Last But Not Least │ - └────────────────────────────┘ - - Other interesting new features including hqx video filter, a pixel art - scaling filter; a fixed-point AC-3 decoder contributed by Imagination - Technologies; an On2 TrueMotion VP7 video decoder; an HTML5 WebVTT - subtitle encoder that allows creation of WebVTT from any text-based - subtitles; and an 1-bit Direct Stream Digital audio decoder. - ┌────────────────────────────┐ │ ★ List of New Features │ └────────────────────────────┘ ┌────────────────────────────┐ - │ Command line tools │ - └────────────────────────────┘ - - • Support for decoding through DXVA2 in ffmpeg - - ┌────────────────────────────┐ - │ libavcodec │ - └────────────────────────────┘ - - • AC3 fixed-point decoding - • VP7 video decoder - • Alias PIX image encoder and decoder - • Improvements to the BRender PIX image decoder - • Improvements to the XBM decoder - • Improvements to OpenEXR image decoder - • Support decoding 16-bit RLE SGI images - • Direct Stream Digital (DSD) decoder - • On2 AVC (Audio for Video) decoder - • Native Opus decoder - • WebVTT encoder - - ┌────────────────────────────┐ - │ libavdevice │ + │ libavformat │ └────────────────────────────┘ - • QTKit input device - • GDI screen grabbing for Windows - • AVFoundation input device + • Icecast protocol ┌────────────────────────────┐ - │ libavformat │ + │ libavfilter │ └────────────────────────────┘ - • subfile protocol - • Phantom Cine demuxer - • Alternative rendition support for HTTP Live Streaming - • Magic Lantern Video (MLV) demuxer - • Image format auto-detection - • LRC lyric file demuxer and muxer - • Samba protocol (via libsmbclient) - • WebM DASH Manifest muxer + • ported lenscorrection filter from frei0r filter + • large optimizations in dctdnoiz to make it usable ┌────────────────────────────┐ - │ libavfilter │ + │ libavutil │ └────────────────────────────┘ - • shuffleplanes filter - • libbs2b-based stereo-to-binaural audio filter - • showcqt multimedia filter - • zoompan filter - • signalstats filter - • hqx filter (hq2x, hq3x, hq4x) - • flanger filter - • libfribidi support in drawtext + • added clip() function in eval ┌────────────────────────────┐ │ ⚠ Behaviour changes │ └────────────────────────────┘ - • libx264 reference frames count is now limited depending on level chosen - • Because of the new image format auto-detection feature, you don't need to - specify image format when decoding an image with no extension. + • dctdnoiz filter now uses a block size of 8x8 instead of 16x16 by default