ââââââââââââââââââââââââââââââââââââââââââ â RELEASE NOTES for FFmpeg 2.4 "Fresnel" â ââââââââââââââââââââââââââââââââââââââââââ The FFmpeg Project proudly presents FFmpeg 2.4 "Fresnel", just 2 months after the release of 2.3. Since this wasn't a long time ago, the Changelog is a bit short this time. The most important thing in this release is the major version bump of the libraries. This means that this release is neither ABI-compatible nor fully API-compatible. But on the other hand it is aligned with the Libav 11 release series, and will as a result probably end up being maintained for a long time. As usual, if you have any question on this release or any FFmpeg related topic, feel free to join us on the #ffmpeg IRC channel (on irc.freenode.net). ââââââââââââââââââââââââââââââ â ð¨ API Information â ââââââââââââââââââââââââââââââ FFmpeg 2.4 includes the following library versions: ⢠libavutil 54.7.100 ⢠libavcodec 56.1.100 ⢠libavformat 56.4.101 ⢠libavdevice 56.0.100 ⢠libavfilter 5.1.100 ⢠libswscale 3.0.100 ⢠libswresample 1.1.100 ⢠libpostproc 53.0.100 Important API changes since 2.3: ⢠The new field mime_type was added to AVProbeData, which can cause crashes, if it is not initialized. ⢠Some deprecated functions were removed. ⢠The avfilter_graph_parse function was made compatible with Libav. ⢠The Matroska demuxer now outputs verbatim ASS packets. Please refer to the doc/APIchanges file for more information. ââââââââââââââââââââââââââââââ â â List of New Features â ââââââââââââââââââââââââââââââ ââââââââââââââââââââââââââââââ â libavformat â ââââââââââââââââââââââââââââââ ⢠Icecast protocol. ⢠API for live metadata updates through event flags. ⢠UTF-16 support in text subtitles formats. ⢠The ASS muxer now reorders the Dialogue events properly. ⢠support for H.261 RTP payload format (RFC 4587) ⢠HEVC/H.265 RTP payload format (draft v6) depacketizer ââââââââââââââââââââââââââââââ â libavfilter â ââââââââââââââââââââââââââââââ ⢠Ported lenscorrection filter from frei0r filter. ⢠Large optimizations in dctdnoiz to make it usable. ⢠Added codecview filter to visualize information exported by some codecs. ⢠Added silenceremove filter. ââââââââââââââââââââââââââââââ â libavutil â ââââââââââââââââââââââââââââââ ⢠Added clip() function in eval. ââââââââââââââââââââââââââââââ â â Behaviour changes â ââââââââââââââââââââââââââââââ ⢠dctdnoiz filter now uses a block size of 8x8 instead of 16x16 by default ⢠-vismv option is deprecated in favor of the codecview filter ⢠libmodplug is now detected through pkg-config ⢠HTML documentation generation through texi2html is deprecated in favor of makeinfo/texi2any ⢠ICY metadata are now requested by default with the HTTP protocol