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Diffstat (limited to 'doc/RELEASE_NOTES')
| -rw-r--r-- | doc/RELEASE_NOTES | 84 |
1 files changed, 8 insertions, 76 deletions
diff --git a/doc/RELEASE_NOTES b/doc/RELEASE_NOTES index 478bc1d20e..b3338b9fee 100644 --- a/doc/RELEASE_NOTES +++ b/doc/RELEASE_NOTES @@ -1,84 +1,16 @@ Release Notes ============= -* 10 "Eks" +* 2.2 "Muybridge" March, 2014 + 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. -One of the main features of this release is the addition of reference-counted -data buffers to Libav and their use in various structures. Specifically, the -data buffers used by AVPacket and AVFrame can now be reference counted, which -should allow to significantly simplify many use cases. In addition, -reference-counted AVFrames can now be used in libavfilter, avoiding the need -for a separate libavfilter-specific frame structure. Frames can now be passed -straight from the decoders into filters or from filters to encoders. - -These additions made it necessary to bump the major versions of libavcodec, -libavformat, libavdevice, libavfilter, and libavutil, which was accompanied by -dropping some old deprecated APIs. These libraries are thus not ABI- or API- -compatible with the previous release. All the other libraries (libavresample -and libswscale) should be both ABI- and API-compatible. - -Another major point is the inclusion of the HEVC (AKA H.265, the successor of -H.264) decoder in the main codebase. It was started in 2012 as a Libav Google -Summer of Code project by Guillaume Martres and subsequently completed with -the assistance of the OpenHEVC project and several Libav developers. - -As usual, this release also contains support for other new formats, many smaller -new features and countless bug fixes. We can highlight a native VP9 decoder, -with encoding provided through libvpx, native decoders for WebP, JPEG 2000, and -AIC, as well as improved WavPack support with encoding through libwavpack, -support for more AAC flavors (LD - low delay, ELD - enhanced low delay), slice -multithreading in libavfilter, or muxing chapters in ASF. Furthermore a few new -filters have been introduced, namely compand, to change audio dynamics, framepack, -to create stereoscopic videos, asetpts, to set audio pts, and interlace, to convert -progressive video to interlaced. Finally there is more fine-grained detection of -host and target libc, which should allow better portability to various cross -compilation scenarios. - -See the Changelog file for a fuller 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: - -[libavutil] -+ added the reference-counted buffers API (buffers.h) -+ moved the AVFrame struct to libavutil and added a new API for working with - reference-counted AVFrames (frame.h) - -[libavcodec] -+ added an API for working with reference-counted AVPackets (av_packet_*) -+- converted VDPAU to the hwaccel framework; the old way of using VDPAU is no - longer supported -- old audio encoding and decoding APIs removed -- old video encoding API removed -- deprecated enum CodecID removed (enum AVCodecID should be used instead) -- deprecated audio resampling API removed (libavresample should be used - instead) - -[libavfilter] -+- replaced AVFilterBufferRef with AVFrame; AVFilterBufferRef and everything - related to it still exists, but is deprecated -+ converted all filters to use the AVOptions system for configuration, it is - now possible to query the supported options, their values and set them - directly with av_opt_* -+ added a slice multithreading framework -+- merged avfiltergraph.h to avfilter.h, using AVFilterGraph is now explicitly - mandatory (it was implicitly required even before); added new API for - allocating and initializing filters - -Please see the file doc/APIchanges for details along with similar -programmer-centric information. |