mirror of https://git.ffmpeg.org/ffmpeg.git
82 lines
3.8 KiB
Plaintext
82 lines
3.8 KiB
Plaintext
┌────────────────────────────────────────┐
|
|
│ 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
|