mirror of
https://gitlab.uni-freiburg.de/opensourcevdi/spice
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4f04c9ac79
The GStreamer codecs don't follow the specified bit rate very closely: they can decide to exceed it for ten seconds or more if they consider the scene deserves it. Such long bursts are enough to cause network congestion, resulting in many lost frames which cause significant display corruption. So the GStreamer video encoder now uses a short 300ms virtual buffer to shape the compressed video output and ensure we don't exceed the target bit rate for any significant length of time. It could instead rely on the network feedback (when available) to lower the bit rate. However frequent GStreamer bit rate changes lower the overall compression level and also result in a lower average bit rate, both of which result in lower video quality. The GStreamer video encoder also keeps track of the encoded frame size so it can gather statistics and call update_client_playback_delay() with accurate information and also annotate the client report debug traces with the corresponding bit rate information. Signed-off-by: Francois Gouget <fgouget@codeweavers.com> |
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| m4 | ||
| server | ||
| spice-common@4284011bdc | ||
| tests | ||
| tools | ||
| uncrustify_cfg | ||
| .gitignore | ||
| .gitmodules | ||
| .mailmap | ||
| .travis.yml | ||
| AUTHORS | ||
| autogen.sh | ||
| cfg.mk | ||
| ChangeLog | ||
| configure.ac | ||
| COPYING | ||
| GNUmakefile | ||
| maint.mk | ||
| Makefile.am | ||
| NEWS | ||
| README | ||
| spice-server.pc.in | ||
| TODO.multiclient | ||
SPICE: Simple Protocol for Independent Computing Environments
=============================================================
SPICE is a remote display system built for virtual environments which
allows you to view a computing 'desktop' environment not only on the
machine where it is running, but from anywhere on the Internet and
from a wide variety of machine architectures.
Installation
------------
The SPICE package uses GNU autotools, so the build install process
follows the standard process documented in the INSTALL file. As a
quick start you can do
./configure --prefix=/usr --sysconfdir=/etc \
--localstatedir=/var --libdir=/usr/lib
make
sudo make install
Or to install into a private user specific location
./configure --prefix=$HOME/spice
make
make install
The following mandatory dependancies are required in order to
build SPICE
Spice protocol >= 0.9.0
Pixman >= 0.17.7
OpenSSL
libjpeg
zlib
Cyrus-SASL
The following optional dependancies increase the available
functionality
GE Gui >= 0.6.0, < 0.7.0 (GUI app support)
OpenGL (GUI app support)
Alsa (Linux support)
XRandR >= 1.2 (X11 support)
Xinerama >= 1.0 (X11 support)
libcacard >= 0.1.2 (Smartcard support)
Communication
-------------
To communicate with the development team, or to post patches
there is a technical mailing list:
http://lists.freedesktop.org/mailman/listinfo/spice-devel
There is also a mailing list for new release announcements:
http://lists.freedesktop.org/archives/spice-announce/
To view known bugs, or report new bugs, in SPICE visit
https://bugs.freedesktop.org/describecomponents.cgi?product=Spice
Bugs found when using an OS distribution's binary packages should
be reported to the OS vendors' own bug tracker first.
The latest SPICE code can be found in GIT at:
http://cgit.freedesktop.org/spice/
Licensing
---------
SPICE is provided under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
Please see the COPYING file for the complete LGPLv2+ license
terms, or visit <http://www.gnu.org/licenses/>.
Experimental Features
---------------------
To enable multiple client connections, set:
SPICE_DEBUG_ALLOW_MC=1
-- End of readme