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1 | ┌────────────────────────────────────────┐ |
2 | │ RELEASE NOTES for FFmpeg 2.4 "Fresnel" │ | |
3 | └────────────────────────────────────────┘ | |
4 | ||
5 | The FFmpeg Project proudly presents FFmpeg 2.4 "Fresnel", just 2 months | |
6 | after the release of 2.3. Since this wasn't a long time ago, the Changelog | |
7 | is a bit short this time. | |
8 | ||
9 | The most important thing in this release is the major version bump of the | |
10 | libraries. This means that this release is neither ABI-compatible nor | |
11 | fully API-compatible. But on the other hand it is aligned with the Libav | |
12 | 11 release series, and will as a result probably end up being maintained for | |
13 | a long time. | |
14 | ||
15 | As usual, if you have any question on this release or any FFmpeg related | |
16 | topic, feel free to join us on the #ffmpeg IRC channel (on | |
17 | irc.freenode.net). | |
18 | ||
19 | ┌────────────────────────────┐ | |
20 | │ 🔨 API Information │ | |
21 | └────────────────────────────┘ | |
22 | ||
23 | FFmpeg 2.4 includes the following library versions: | |
24 | ||
25 | • libavutil 54.7.100 | |
26 | • libavcodec 56.1.100 | |
27 | • libavformat 56.4.101 | |
28 | • libavdevice 56.0.100 | |
29 | • libavfilter 5.1.100 | |
30 | • libswscale 3.0.100 | |
31 | • libswresample 1.1.100 | |
32 | • libpostproc 53.0.100 | |
33 | ||
34 | Important API changes since 2.3: | |
35 | ||
36 | • The new field mime_type was added to AVProbeData, which can | |
37 | cause crashes, if it is not initialized. | |
38 | • Some deprecated functions were removed. | |
39 | • The avfilter_graph_parse function was made compatible with Libav. | |
40 | • The Matroska demuxer now outputs verbatim ASS packets. | |
41 | ||
42 | Please refer to the doc/APIchanges file for more information. | |
43 | ||
44 | ┌────────────────────────────┐ | |
45 | │ ★ List of New Features │ | |
46 | └────────────────────────────┘ | |
47 | ||
48 | ┌────────────────────────────┐ | |
49 | │ libavformat │ | |
50 | └────────────────────────────┘ | |
51 | ||
52 | • Icecast protocol. | |
53 | • API for live metadata updates through event flags. | |
54 | • UTF-16 support in text subtitles formats. | |
55 | • The ASS muxer now reorders the Dialogue events properly. | |
56 | • support for H.261 RTP payload format (RFC 4587) | |
57 | • HEVC/H.265 RTP payload format (draft v6) depacketizer | |
58 | ||
59 | ┌────────────────────────────┐ | |
60 | │ libavfilter │ | |
61 | └────────────────────────────┘ | |
62 | ||
63 | • Ported lenscorrection filter from frei0r filter. | |
64 | • Large optimizations in dctdnoiz to make it usable. | |
65 | • Added codecview filter to visualize information exported by some codecs. | |
66 | • Added silenceremove filter. | |
67 | ||
68 | ┌────────────────────────────┐ | |
69 | │ libavutil │ | |
70 | └────────────────────────────┘ | |
71 | ||
72 | • Added clip() function in eval. | |
73 | ||
74 | ┌────────────────────────────┐ | |
75 | │ ⚠ Behaviour changes │ | |
76 | └────────────────────────────┘ | |
77 | ||
78 | • dctdnoiz filter now uses a block size of 8x8 instead of 16x16 by default | |
79 | • -vismv option is deprecated in favor of the codecview filter | |
80 | • libmodplug is now detected through pkg-config | |
81 | • HTML documentation generation through texi2html is deprecated in | |
82 | favor of makeinfo/texi2any | |
83 | • ICY metadata are now requested by default with the HTTP protocol |