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RELEASE_NOTES: small grammar fixes and improvements
Signed-off-by: Reynaldo H. Verdejo Pinochet <reynaldo@osg.samsung.com>
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10-bit support in spp, but maybe it's more important to mention the addition
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10-bit support in spp, but maybe it's more important to mention the addition
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of colorlevels (yet another color handling filter), tblend (allowing you
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of colorlevels (yet another color handling filter), tblend (allowing you
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to for example run a diff between successive frames of a video stream), or
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to for example run a diff between successive frames of a video stream), or
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eventually the dcshift audio filter.
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the dcshift audio filter.
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There is also two other important filters landing in libavfilter: palettegen
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There are also two other important filters landing in libavfilter: palettegen
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and paletteuse, submitted by the Stupeflix company. These filters will be
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and paletteuse. Both submitted by the Stupeflix company. These filters will
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very useful in case you are looking for creating high quality GIF, a format
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be very useful in case you are looking for creating high quality GIFs, a
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that still bravely fights annihilation in 2015.
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format that still bravely fights annihilation in 2015.
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There are many other features, but let's follow-up on one big cleanup
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There are many other new features, but let's follow-up on one big cleanup
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achievement: the libmpcodecs (MPlayer filters) wrapper is finally dead. The
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achievement: the libmpcodecs (MPlayer filters) wrapper is finally dead. The
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last remaining filters (softpulldown/repeatfields, eq*, and various
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last remaining filters (softpulldown/repeatfields, eq*, and various
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postprocessing filters) were ported by Arwa Arif (OPW student) and Paul B
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postprocessing filters) were ported by Arwa Arif (OPW student) and Paul B
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Mahol.
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Mahol.
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Concerning API changes, not much things to mention. Though, the introduction
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Concerning API changes, there are not many things to mention. Though, the
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of devices inputs and outputs listing by Lukasz Marek is a notable addition
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introduction of device inputs and outputs listing by Lukasz Marek is a
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(try ffmpeg -sources or ffmpeg -sinks for an example of the usage). As
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notable addition (try ffmpeg -sources or ffmpeg -sinks for an example of
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usual, see doc/APIchanges for more information.
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the usage). As usual, see doc/APIchanges for more information.
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Now let's talk about optimizations. Ronald S. Bultje made the VP9 decoder
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Now let's talk about optimizations. Ronald S. Bultje made the VP9 decoder
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usable on x86 32-bit systems and pre-ssse3 CPUs like Phenom (even dual core
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usable on x86 32-bit systems and pre-ssse3 CPUs like Phenom (even dual core
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Athlons can play 1080p 30fps VP9 content now), so we now secretly hope for
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Athlons can play 1080p 30fps VP9 content now), so we now secretly hope for
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Google and Mozilla to use ffvp9 instead of libvpx.
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Google and Mozilla to use ffvp9 instead of libvpx. But VP9 is not the
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center of attention anymore, and HEVC/H.265 is also getting many
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But VP9 is not the center of attention anymore, and HEVC/H.265 is also
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improvements, which include C and x86 ASM optimizations, mainly from James
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getting many improvements, which includes optimizations, both in C and x86
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Almer, Christophe Gisquet and Pierre-Edouard Lepere.
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ASM, mainly from James Almer, Christophe Gisquet and Pierre-Edouard Lepere.
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Even though we had many x86 contributions, it is not the only architecture
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Even though we had many x86 contributions, it is not the only architecture
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getting some love, with Seppo Tomperi adding ARM NEON optimizations to the
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getting some love, with Seppo Tomperi adding ARM NEON optimizations to the
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@ -61,6 +60,6 @@
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complete Git history on http://source.ffmpeg.org.
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complete Git history on http://source.ffmpeg.org.
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We hope you will like this release as much as we enjoyed working on it, and
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We hope you will like this release as much as we enjoyed working on it, and
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as usual, if you have any question about it, or any FFmpeg related topic,
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as usual, if you have any questions about it, or any FFmpeg related topic,
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feel free to join us on the #ffmpeg IRC channel (on irc.freenode.net) or ask
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feel free to join us on the #ffmpeg IRC channel (on irc.freenode.net) or ask
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on the mailing-lists.
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on the mailing-lists.
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