FFMpeg 0.5 Release

akiduki

It has been a very long time since we last made a release and many did not think we would make one again but, back by popular demand, we are proud to announce a new release: FFmpeg 0.5. Check out the release notes and changelog.

It is codenamed "half-way to world domination A.K.A. the belligerent blue bike shed" to give an idea where we stand in the grand scheme of things and to commemorate the many fruitful discussions we had during its development.

This release includes a very extensive number of changes, but some of the highlights are:

    * Significant work to support at least decoding of all widespread mainstream proprietary codecs, such as:
          o decoders and encoders
                + ALAC
                + Flash Screen Video
                + WMAv2 decoder fixed, WMAv1/v2 encoder
          o decoders
                + Atrac3
                + MLP/TrueHD
                + On2 VP3 improvements and VP5/VP6 support
                + RealAudio Cooker and fixes for 14.4 and 28.8
                + RealVideo RV30/40
                + WMV3/WMV9/VC-1 and IntraX8 frame support for WMV2/VC-1
    * Broad coverage of widespread non-proprietary codecs, including:
          o decoders and encoders
                + DNxHD
                + DVCPRO50 (a.k.a. DV50)
                + Floating point PCM
                + GSM-MS
                + Theora (and encoding via libtheora)
                + Vorbis
          o decoders
                + AAC with ADTS support and >2x the speed of FAAD! (no HE AAC support yet)
                + AC-3 that is faster than liba52 in 5.1, up to 2x faster in stereo and also supports E-AC-3! Hence liba52 is now obsolete.
                + DCA
                + DVCPRO HD (a.k.a. DV100)
                + H.264 PAFF and CQM support, plus slice-based multithreaded decoding
                + Monkey's Audio
                + MPEG-2 video support for intra VLC and 4:2:2
                + Musepack
                + QCELP
                + Shorten
                + True Audio (TTA)
                + Wavpack including hybrid mode support
    * Highlights among the newly supported container formats:
          o demuxers and muxers
                + GXF
                + MXF
          o demuxers
                + NullSoft Video (NSV)
          o muxers
                + iPhone/iPod compatibility for MP4/MOV
                + Matroska
                + NUT
                + Ogg (FLAC, Theora and Vorbis only)
                + ShockWave Flash (SWF)
    * libavdevice
    * ffserver is working again.
    * a shiny, new, completely revamped, non-recursive build system
    * cleaner, more consistent code
    * an all new metadata API
    * and so much more!
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刚svn checkout回来trunk，随便看了一眼，感觉代码可读性有很大改善。虽然ffmpeg的代码一向很好读懂...
另外，H264 CQM是什么东西？

akiduki

CQM=Custom Quantization Metricies
湿太了