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- ┌────────────────────────────────────────┐
- │ RELEASE NOTES for FFmpeg 2.4 "Fresnel" │
- └────────────────────────────────────────┘
-
- 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).
-
- ┌────────────────────────────┐
- │ 🔨 API Information │
- └────────────────────────────┘
-
- 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 │
- └────────────────────────────┘
-
- ┌────────────────────────────┐
- │ libavformat │
- └────────────────────────────┘
-
- • 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.
-
- ┌────────────────────────────┐
- │ 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.
-
- ┌────────────────────────────┐
- │ ⚠ 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
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