[Spice-devel] not clear how to use streaming agent

[孙得霖]

Hi,
Thanks for your response.it is first time to communicate in English,to be frank, my English is not very good and there may be points expressed poorly in my reply. I hope you will pardon me for this.





I want to capute guest video stream(encode it) and to client with spice protocol direct (like above figure ),at present, it is in the stage of technical pre-research.
So my question is, can i use streaming agent to capture guest video stream and encode it?

 
 
------------------ Original ------------------
From:  "Lukáš Hrázký"<lhrazky at redhat.com>;
Date:  Fri, Apr 13, 2018 07:24 PM
To:  "孙得霖"<kong.delin at embedway.com>; "spice-devel"<spice-devel at lists.freedesktop.org>; 

Subject:  Re: [Spice-devel] not clear how to use streaming agent

 
Hello Delin,

On Thu, 2018-04-12 at 10:37 +0800, 孙得霖 wrote:
> hi,
>     I use spice for remote view, I want to captures the guest video output, encodes it and send through, so I choose streaming agent, how to build and run it is not clear, can you help me?

Sure, first off, what exactly do you want to achieve? If you just want
to remotely access your VM (see the graphical desktop and interact with
it), you don't need the streaming agent for that, SPICE can do that for
a long time without it.

Streaming agent is designed for a very specific case of capturing and
encoding the desktop from within the guest, which only has an advantage
to the regular old SPICE approach if you have a physical GPU or a vGPU
assigned to the guest to accelerate the process.

If you still think streaming agent is what you need, please describe in
detail what is your use case.

> 1.host environment and Software version:
> centOS(Mini install)
> GVT-g kernel:      https://github.com/intel/gvt-linux/  (branch: topic/dmabuf)
> QEMU:              https://github.com/intel/igvtg-qemu  (branch: qa/dma_buf)
> streming agent:    https://gitlab.com/spice/spice-streaming-agent    
> spice-server       version:0.13.3
> spice-protocol     version:0.12.12
> 
> 
> 2.build info
> kernel:
> make -j 8
> make modules_install && make install
> reboot
> 
> 
> qemu:
> ./configure --prefix=/usr --enable-kvm --disable-xen --enable-debug-info --enable-debug --enable-sdl --enable-vhost-net --enable-spice --disable-debug-tcg --enable-numa --enable-libusb --enable-curl --enable-usb-redir --enable-linux-aio --target-list=x86_64-softmmu --enable-gtk --with-gtkabi=3.0
> make -j 8
> cd roms/seabios
> make -j 8
> cd -
> make install
> cp roms/seabios/out/bios.bin /usr/bin/bios.bin
> 
> 
> spice-protocol:
> ./configure --prefix=/usr
> make -j 8
> make install
> 
> 
> spice-service:
> ./configure  --prefix=/usr --enable-manual=no --disable-silent-rules --disable-smartcard --disable-celt051 --enable-client CFLAGS="-g -O0" CXXFLAGS="-g -O0"
> make -j 8
> make install
> 
> 
> streming agent
> ./autogen.sh
> make -j 8
> make install
> 
> 
> 3.run qemu
> /usr/bin/qemu-system-x86_64 \
> -m 8192 \
> -smp 4,sockets=1,cores=4,threads=1 \
> -M pc \
> -name win71 \
> -hda /Image/vm/win7_base.img \
> -bios /usr/bin/bios.bin -enable-kvm \
> -k en-us \
> -vga none \
> -display egl-headless \
> -spice disable-ticketing,port=6901,streaming-video=off \
> -machine kernel_irqchip=on,usb=on \
> -global PIIX4_PM.disable_s3=1 -global PIIX4_PM.disable_s4=1 \
> -cpu host -device usb-tablet \
> -device vfio-pci,sysfsdev=/sys/bus/pci/devices/0000:00:02.0/5b8d581a-2dc9-11e8-8238-000906258002,x-display=on,x-igd-opregion=on
> -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel1,id=channel1,name=org.spice-space.stream.0 -chardev spiceport,name=org.spice-space.stream.0,id=charchannel1

Are you running Windows 7 as the guest? The streaming agent is designed
to run in the guest and only supports Linux atm.

Cheers,
Lukas

> questions:
> I am not clear How to use streaming agent and validate it, can you help me?
> 
> thank you!
> _______________________________________________
> Spice-devel mailing list
> Spice-devel at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/spice-devel
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