[Spice-devel] [PATCH 0/11] Add GStreamer and VP8 support

[Fabio Fantoni]

Il 29/05/2015 04:29, Francois Gouget ha scritto:
> On Thu, 28 May 2015, Fabio Fantoni wrote:
> [...]
>> Thanks for reply, I'm preparing spice-gtk with vp8 patches armhf for
>> test it on arm thin client (for example raspberry 2), I want try to use
>> gst-omx for hardware decoding of mjpeg and vp8, can I simply build and
>> install gst-omx instead of gst-ffmpeg or a change in spice-gtk is needed
>> for use gst-omx?
> I have patches that could probably be useful to you for this: a 
> simplification of the pipeline creation, optionally the use of 
> decoebin, and for the performance aspects zero-copy for both the input 
> buffer and the ouput frame. So I have created some github repositories 
> to make it easier to get these:
>
>
> https://github.com/fgouget/spice-gtk.git
>  * gst branch
>    All the above except for decodebin.
>
>  * decodebin branch
>    Uses decodebin instead of manually picking the decoders. However on 
>    my machine decodebin tries to use vaapi which, given my test 
>    configuration, immediately triggers an assert, thus killing the 
>    process. Uninstalling vaapi fixes that but it's annoying. So I don't 
>    really like the decodebin approach though it's probably more a vaapi 
>    bug than a decodebin issue.

Thanks, I'll try it.

>
>
> https://github.com/fgouget/spice.git
>  * gst branch
>    The patches adding GStreamer and VP8 support.
>
>  * gst-1.0 branch
>    Experimental branch with non-functional GStreamer 1.0 and h264 code. 
>    Note that GStreamer 1.0 support can be disabled using './configure 
>    --disable-gstreamer-1.0' so H264 support can be tested too.

I'm trying the gst1 support but build fails with this error:
gstreamer_encoder.c: In function 'construct_pipeline':
gstreamer_encoder.c:219:41: error: 'GstEncoder' has no member named 'frc'
                      "deadline", encoder->frc.period * 1000 / 2,

Why you tell that 1.0 is not functional? I suppose not only for the
build error I had.

>
>
> https://github.com/fgouget/xf86-video-qxl.git
>  * gst branch
>    Has the patch to make it possible to specify the encoder:codec 
>    pairs in either SpiceVideoCodecs or XSPICE_VIDEO_CODECS.
>
>
> There are also spice-common and spice-protocol repositories but these 
> should get pulled automatically.
>
>


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