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).
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.
★ List of New Features
- 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
libavfilter
- 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.
libavutil
- Added clip() function in eval.
âš Behaviour changes
- 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