From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1MWu1d-0000a2-38 for qemu-devel@nongnu.org; Fri, 31 Jul 2009 11:28:05 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1MWu1Y-0000Xe-8n for qemu-devel@nongnu.org; Fri, 31 Jul 2009 11:28:04 -0400 Received: from [199.232.76.173] (port=57565 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MWu1Y-0000XY-3C for qemu-devel@nongnu.org; Fri, 31 Jul 2009 11:28:00 -0400 Received: from mail2.shareable.org ([80.68.89.115]:36463) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1MWu1X-0007JJ-Lg for qemu-devel@nongnu.org; Fri, 31 Jul 2009 11:27:59 -0400 Date: Fri, 31 Jul 2009 16:27:50 +0100 From: Jamie Lokier Subject: Re: [Qemu-devel] [PATCH] Add JPEG encoding to VNC server Message-ID: <20090731152750.GA31833@shareable.org> References: <1249024897-11100-1-git-send-email-agraf@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1249024897-11100-1-git-send-email-agraf@suse.de> List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Alexander Graf Cc: stefano.stabellini@eu.citrix.com, qemu-devel@nongnu.org, kraxel@redhat.com Alexander Graf wrote: > While this might sound like it renders the whole implementation useless, it > does make sense to implement it nevertheless. I have some ideas to implement > progressive encodings for video. > > So when we'd detect that one region is updated a lot in a short > about of time with content that zlib can't really handle well, we'd > just send a really low quality JPEG first and then send the update > after a timer if the region wasn't updated within that timeframe. Detecting video regions may also be possible if virtual video overlay hardware can be offered. It would probably require a special guest driver. virtio-video :-) Then again the trend, if you believe in the