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@ -1,20 +1,12 @@ |
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Release Notes |
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Release Notes |
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============= |
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============= |
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* 0.9 "Harmony" December, 2011 |
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* 0.10 "Freedom" January, 2012 |
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General notes |
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General notes |
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------------- |
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------------- |
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This release is binary compatible with 0.8. The 'ffmpeg' command-line tool has |
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This release is binary compatible with 0.8 and 0.9. |
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been extended to also support the command line syntax and features of a tool |
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called avconv. |
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Additionally, this release introduces a number of new interesting codecs |
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such as the Apple Prores, Flash Screen Video 2 and Windows Media Image, |
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and muxers such as LATM or CELT in Ogg, among many others. Moreover, our |
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H.264 decoder has been improved to decode 4:2:2 material and our libx264 |
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wrapper now allows to produce 4:2:2 and 4:4:4 video. |
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See the Changelog file for a list of significant changes. Note, there |
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See the Changelog file for a list of significant changes. Note, there |
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are many more new features and bugfixes than whats listed there. |
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are many more new features and bugfixes than whats listed there. |
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@ -39,24 +31,7 @@ is able to use AVCodecContext.get_buffer() in the similar way as video decoding. |
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* new audio encoding API which encodes from an AVFrame to an AVPacket, thus |
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* new audio encoding API which encodes from an AVFrame to an AVPacket, thus |
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allowing it to properly output timing information and side data. |
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allowing it to properly output timing information and side data. |
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* rewritten AVOptions API with better built-in support for private options. |
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Please see the git history and the file doc/APIchanges for details. |
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* private options support for demuxers [avformat_open_input()], muxers |
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[avformat_write_header()], encoders and decoders [avcodec_open2()]. |
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As a result, many format- or codec-specific fields and flags in AVFormatContext |
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and AVCodecContext were deprecated -- notably most of CODEC_FLAG2_* and many |
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CODEC_FLAG_*. |
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* new API for custom IO interrupt callbacks. |
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* #include cleanup in libavutil -- libavutil/avutil.h no longer includes all |
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the other headers in libavutil, they must be included manually. One specific |
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result is that libavutil/mathematics.h is no longer included from |
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libavcodec/avcodec.h, which is a common source of errors. |
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Please see the file doc/APIchanges for details along with |
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similar programmer-centric information. |
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Other notable changes |
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Other notable changes |
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@ -67,8 +42,8 @@ symbols. This will break applications using those symbols. Possible solutions |
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are, in order of preference: |
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are, in order of preference: |
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1) Try finding a way of accomplishing the same with public API. |
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1) Try finding a way of accomplishing the same with public API. |
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2) If there is no corresponding public API, but you think there should be, |
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2) If there is no corresponding public API, but you think there should be, |
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post a request on the user mailing list or IRC channel. |
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post a request on the developer mailing list or IRC channel. |
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3) Finally if your program needs access to FFmpeg / libavcodec / libavformat |
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3) Finally if your program needs access to FFmpeg / libavcodec / libavformat |
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internals for some special reason then the best solution is to link statically. |
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internals for some special reason then the best solution is to link statically. |
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Please see the Changelog file for a more detailed list of changes. |
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Please see the Changelog file and git history for a more detailed list of changes. |
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