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