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diff --git a/doc/RELEASE_NOTES b/doc/RELEASE_NOTES index 62207c6af4..2faf40d656 100644 --- a/doc/RELEASE_NOTES +++ b/doc/RELEASE_NOTES @@ -1,101 +1,16 @@ Release Notes ============= -* 9 "Plain Nine" +* 1.2 "Magic" March, 2013 + General notes ------------- +See the Changelog file for a list of significant changes. Note, there +are many more new features and bugfixes than whats listed there. -From this release onwards, we have decided to drop the leading zero from our -release numbers. There were no plans of ever changing it, so it carried no -information. Thus this release is just a plain 9, the next will be 10 etc. - -A new library arrived in Libav during this development cycle -- its name is -libavresample and it handles audio conversion and mixing. All users are -encouraged to use it instead of the old, now deprecated, audio conversion -API in libavcodec. - -The libpostproc library now resides in a separate tree. It was fully independent -of the other Libav libraries, not used by any of the tools and saw very little -development. For these reasons we decided that it has no place in Libav. A -standalone Git tree is available at http://git.videolan.org/?p=libpostproc.git -for people wishing to use libpostproc. - -The major versions of the libavcodec, libavformat and libavfilter libraries have -been bumped, so they are not API or ABI compatible with the 0.8 release. The -ffmpeg transcoding tool, kept for compatibility in 0.8, has also been dropped. - -This release brings a number of significant changes in the libavfilter library. -Firstly, all the API dealing with filter internals is no longer public. The -result is that creating user-side filters will not be supported until -libavfilter is more mature. -Secondly, full audio filtering support is now available along with a set of -basic audio filters. We hope that their number will soon grow significantly. -The avconv transcoding tool has of course been extended to handle audio -filtering as well. -There were a number of other API changes, most importantly the addition of -the buffer sink public API. - -In the libavcodec library, one of the most notable changes is added support for -planar audio (i.e. not interleaved). Many decoders and encoders, that previously -did inefficient (de)interleaving internally, now only work with planar audio -formats. Libavresample can be used for optimized conversion between interleaved -and planar formats. - -Of big interest to our Windows users, Libav now supports building with the MSVC -compiler. Since MSVC does not support C99 features used extensively by Libav, -this has been accomplished using a converter that turns C99 code to C89. See the -platform-specific documentation for more detailed documentation on building -Libav with MSVC. - -As usual, this release also contains support for some new formats, many smaller -new features and countless bug fixes. We can highlight Opus decoding / encoding -through libopus, encoders for Apple ProRes and Ut Video, WMA Lossless and -RealAudio Lossless decoders, fragmented MOV/MP4 and ISMV (Smooth Streaming) -muxers, 24-bit FLAC encoding, a large number of RTMP improvements and support -for cover art in ID3v2, WMA, MP4 and FLAC. - -See the Changelog file for a list of significant changes. - -Please note that our policy on bug reports has not changed. We still only accept -bug reports against HEAD of the Libav trunk repository. If you are experiencing -issues with any formally released version of Libav, please try a current version -of the development code to check if the issue still exists. If it does, make -your report against the development code following the usual bug reporting +Bugreports against FFmpeg git master or the most recent FFmpeg release are +accepted. If you are experiencing issues with any formally released version of +FFmpeg, please try git master to check if the issue still exists. If it does, +make your report against the development code following the usual bug reporting guidelines. - - -API changes ------------ - -A number of additional APIs have been introduced and some existing functions -have been deprecated and are scheduled for removal in the next release. -Significant API changes include: - -[libavcodec]: -* New video encoding API, similar to the previously introduced audio encoding - API, which encodes from an AVFrame to an AVPacket, thus allowing it to - properly output timing information and side data. - -* All CODEC_ID_* symbols now carry AV_ prefixes. Non-prefixed codec IDs are - deprecated. - -* New codec descriptor API, which allows getting the properties of a given codec - (identified by its ID), without referring to a specific decoder or encoder. - -* An AVFrame must now be freed with a dedicated function, avcodec_free_frame(). - -[libavutil]: -* New audio FIFO API, which simplifies managing/merging/splitting audio buffers. - -* new int/float type punning API - -[libavfilter]: -* All filter internals were hidden. - -* audio filtering. - -* new buffer sink API for getting frames out of libavfilter. - -Please see the file doc/APIchanges for details along with similar -programmer-centric information. |