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diff --git a/doc/RELEASE_NOTES b/doc/RELEASE_NOTES deleted file mode 100644 index a440a3a43c..0000000000 --- a/doc/RELEASE_NOTES +++ /dev/null @@ -1,74 +0,0 @@ -Release Notes -============= - -* 12 "Not Enough Trocadero" - -General notes -------------- - -This release once again bumps the major versions of all the libraries, removing -some long-deprecated APIs. This means that it is neither API nor ABI-compatible -with the previous release. The users who still did not update their code are -advised to look at the next section of these release notes, the doc/APIchanges -file and the API migration guide on our wiki. If those are not sufficient, do -not hesitate to contact us on IRC or through the user mailing list. - -Among the main highlights of this release are several additions related to -hardware acceleration. There is a new API for managing hardware devices and -frame pools, which allows to add new features such as zero-copy -hardware-accelerated filtering with libavfilter and should reduce the -boilerplate code required for existing hardware-accelerated decoders. We have -added QuickSync decoding and encoding, NVENC encoding and CUDA image scaling, -VAAPI encoding and image scaling, OpenMAX encoding, MMAL decoding and Direct3D11 -decoding. - -Other significant additions not related to hardware acceleration include -decoders for Canopus HQ/HQA and HQX, Go2Meeting, AAC ELD, TDSC, Hap, DXV, SPV1, -and a new ASF demuxer written according to the specification. There were also -countless smaller changes and bug fixes. - -See the Changelog file for a more extensive list of significant changes. - -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] -+ Added an object for storing codec parameters (AVCodecParameters) and its - related API. It will now replace AVCodecContext everywhere except the actual - encoders/decoders. -+- Added a new API for handling refcounted AVPackets, mirroring the AVFrame API. - Deprecated certain old ill-defined AVPacket functions. -+- Added a new API for audio/video encoding and decoding, with decoupled input - and output. This will e.g. allow a decoder to produce multiple output frames - for a single input packet, which was not possible with the previous API. All - users are strongly encouraged to switch to this new API as soon as possible, - since certain decoders and encoders might start requiring the new API to be - used. -+- Added a new API for bitstream filtering, which works with refcounted - AVPackets and is more clearly defined and documented. The old bitstream - filtering API is now deprecated. - -[libavformat] -+ Added new IO callbacks to AVFormatContext, allowing the caller to provide - custom IO for certain special muxers and demuxers. -+- Replaced AVStream.codec (AVCodecContext) with AVStream.codecpar - (AVCodecParameters) as the means of signalling codec parameters between the - muxers/demuxers and the caller. - -[libavutil] -+ Added a new API (hwcontext.h) for handling hardware acceleration devices and - hardware frame pools. - -[libavfilter] -+ Added a new struct, AVBufferSrcParameters, for passing the stream parameters - to the buffer source. It is now the recommended way of configuring the buffer - source. -+ Added AVFilterContext.hw_device_ctx and AVFilterLink.hw_frames_ctx that allow - hardware frames to be used in filter graphs. - -Please see the file doc/APIchanges for details along with similar -programmer-centric information. |