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author | Clément Bœsch <u@pkh.me> | 2015-03-05 22:26:14 +0100 |
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committer | Clément Bœsch <u@pkh.me> | 2015-03-06 22:32:18 +0100 |
commit | 3dc88e1fd6b863815249ad176cbeebdcfbb2ac30 (patch) | |
tree | 165a8c20b02b279efb3e65cde26b52c09a26086f | |
parent | 4e2cab5a79f47bc264effae96c2359329e91537f (diff) | |
download | ffmpeg-3dc88e1fd6b863815249ad176cbeebdcfbb2ac30.tar.gz |
Add release notesn2.6
-rw-r--r-- | RELEASE_NOTES | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/RELEASE_NOTES b/RELEASE_NOTES new file mode 100644 index 0000000000..a48c97db58 --- /dev/null +++ b/RELEASE_NOTES @@ -0,0 +1,66 @@ + + ┌─────────────────────────────────────────────┐ + │ RELEASE NOTES for FFmpeg 2.6 "Grothendieck" │ + └─────────────────────────────────────────────┘ + + The FFmpeg Project proudly presents FFmpeg 2.6 "Grothendieck", about 3 + months after the release of FFmpeg 2.5. + + A lot of important work got in this time, so let's start talking about what + we like to brag the most about: features. + + A lot of people will probably be happy to hear that we now have support for + NVENC — the Nvidia Video Encoder interface for H.264 encoding — thanks to + Timo Rothenpieler, with some little help from NVIDIA and Philip Langdale. + + People in the broadcasting industry might also be interested in the first + steps of closed captions support with the introduction of a decoder by + Anshul Maheswhwari. + + Regarding filters love, we improved and added many. We could talk about the + 10-bit support in spp, but maybe it's more important to mention the addition + of colorlevels (yet another color handling filter), tblend (allowing you + to for example run a diff between successive frames of a video stream), or + eventually the dcshift audio filter. + + There is also two other important filters landing in libavfilter: palettegen + and paletteuse, submitted by the Stupeflix company. These filters will be + very useful in case you are looking for creating high quality GIF, a format + that still bravely fights annihilation in 2015. + + There are many other features, but let's follow-up on one big cleanup + achievement: the libmpcodecs (MPlayer filters) wrapper is finally dead. The + last remaining filters (softpulldown/repeatfields, eq*, and various + postprocessing filters) were ported by Arwa Arif (OPW student) and Paul B + Mahol. + + Concerning API changes, not much things to mention. Though, the introduction + of devices inputs and outputs listing by Lukasz Marek is a notable addition + (try ffmpeg -sources or ffmpeg -sinks for an example of the usage). As + usual, see doc/APIchanges for more information. + + Now let's talk about optimizations. Ronald S. Bultje made the VP9 decoder + usable on x86 32-bit systems and pre-ssse3 CPUs like Phenom (even dual core + Athlons can play 1080p 30fps VP9 content now), so we now secretly hope for + Google and Mozilla to use ffvp9 instead of libvpx. + + But VP9 is not the center of attention anymore, and HEVC/H.265 is also + getting many improvements, which includes optimizations, both in C and x86 + ASM, mainly from James Almer, Christophe Gisquet and Pierre-Edouard Lepere. + + Even though we had many x86 contributions, it is not the only architecture + getting some love, with Seppo Tomperi adding ARM NEON optimizations to the + HEVC stack, and James Cowgill adding MIPS64 assembly for all kind of audio + processing code in libavcodec. + + And finally, Michael Niedermayer is still fixing many bugs, dealing with + most of the boring work such as making releases, applying tons of + contributors patches, and daily merging the changes from the Libav project. + + A more complete Changelog is available at the root of the project, and the + complete Git history on http://source.ffmpeg.org. + + We hope you will like this release as much as we enjoyed working on it, and + as usual, if you have any question about it, or any FFmpeg related topic, + feel free to join us on the #ffmpeg IRC channel (on irc.freenode.net) or ask + on the mailing-lists. |