[Libva] codec parser issues between gst-plugins-bad and gstreamer-vaapi

[Gwenole Beauchesne]

Hi,

2012/12/18 Yuan, Feng <feng.yuan at intel.com>:
>> The sync=false issue is an independent problem. I have not investigated
>> this one yet. From what I see, at least on my side, is that with sync=false +
>> playbin2, some streams would not stop immediately at the end of the
>> stream. However, there is no issue with sync=false + explicit pipeline
>> (somedemux ! vaapidecode ! vaapisink sync=false).
> Cong has done some investigation on playbin2 with sync=false. And said pipeline stopped by GstVaapiSurface exhausted, we have 20 surfaces created in decoder, but playbin2 has some queues, so the pipeline would looks more like (somedemux ! vaapidecode ! *queue* ! vaapisink sync=false), the <queue> may use up all surfaces then after vaapidecode tried more than 100 times and return GST_FLOW_UNEXPECTED, finally pipeline got EOS message, this is reasonable. You can try add a queue. Since we didn't handle timestamp in h264decoder on raw stream, I think QA can test raw streams only on manual pipeline without <queue>.

We are discussing different problems then, because the issue I have
can be reproduced with MP4 containers. Though, the effects look the
same: someone is holding all output GstBuffers (and associated surface
proxies), that's why we run out of VA surfaces in the end and
eventually stop after the timeout you mentioned.

>> >> -----Original Message-----
>> >> From: libva-bounces+jocelyn.li=intel.com at lists.freedesktop.org
>> >> [mailto:libva-bounces+jocelyn.li=intel.com at lists.freedesktop.org] On
>> >> Behalf Of Zhang, Ouping
>> >> Sent: Tuesday, December 18, 2012 11:05 AM
>> >> To: Yuan, Feng; Gwenole Beauchesne
>> >> Cc: Beauchesne, Gwenole; libva at lists.freedesktop.org; Zhong, CongX
>> >> Subject: Re: [Libva] codec parser issues between gst-plugins-bad and
>> >> gstreamer-vaapi
>> >>
>> >> Git apply Gwenole's patch(gst.vaapi.hide.codecparsers.patch), it can
>> >> fix bug 55305 and bug 56652 on master branch and QA branch.
>> >>
>> >> But when configure --enable-encoders on master branch with the
>> patch,
>> >> decoding can't work well with the following error:
>> >> (gst-plugin-scanner:13863): GStreamer-WARNING **: Failed to load
>> >> plugin
>> >> '/usr/lib/x86_64-linux-gnu/gstreamer-0.10/libgstvaapi.so':
>> >> /usr/lib/x86_64-
>> >> linux-gnu/gstreamer-0.10/libgstvaapi.so: undefined symbol:
>> >> vaapi_encoder_dump_bytes
>> >>
>> >> (gst-plugin-scanner:13864): GStreamer-WARNING **: Failed to load
>> >> plugin
>> >> '/usr/lib/x86_64-linux-gnu/gstreamer-0.10/libgstvaapi.so':
>> >> /usr/lib/x86_64-
>> >> linux-gnu/gstreamer-0.10/libgstvaapi.so: undefined symbol:
>> >> vaapi_encoder_dump_bytes
>> >> WARNING: erroneous pipeline: could not set property "video-sink" in
>> >> element "playbin20" to "vaapisink sync=false"
>> >>
>> >> -----Original Message-----
>> >> From: Yuan, Feng
>> >> Sent: Tuesday, December 18, 2012 9:52 AM
>> >> To: Gwenole Beauchesne; Zhang, Ouping
>> >> Cc: Beauchesne, Gwenole; libva at lists.freedesktop.org; Zhong, CongX
>> >> Subject: RE: [Libva] codec parser issues between gst-plugins-bad and
>> >> gstreamer-vaapi
>> >>
>> >>
>> >> > -----Original Message-----
>> >> > From: Gwenole Beauchesne [mailto:gb.devel at gmail.com]
>> >> > Sent: Monday, December 17, 2012 9:40 PM
>> >> > To: Yuan, Feng
>> >> > Cc: Beauchesne, Gwenole; libva at lists.freedesktop.org; Zhong, CongX
>> >> > Subject: Re: [Libva] codec parser issues between gst-plugins-bad
>> >> > and gstreamer-vaapi
>> >> >
>> >> > Hi,
>> >> >
>> >> > 2012/12/10 Yuan, Feng <feng.yuan at intel.com>:
>> >> >
>> >> > >> If you tell me it works, yes. :) Otherwise, I didn't test the
>> >> > >> patch since I don't have the issue, but I understand the cause
>> >> > >> based on what you said.
>> >> > >
>> >> > > I just simply tried the patch on my machine and it works.
>> >> > > QA will test it tomorrow and let you know the result soon.
>> >> >
>> >> > Applied. No news from QA, though there is no reason this shouldn't
>> >> work.
>> >>
>> >> Good.
>> >> Sorry, I'm busy on Tizen these days so didn't tell you the result. QA
>> >> tried it but said it was failed. I didn't check their environment not sure
>> why failed.
>> >> But yours can work in my machine. Cong wrote a similar patch like
>> >> yours < -fvisibility=hidden> and said his can work, in my option,
>> >> your and his patch should have the same result.
>> >>
>> >> Ouping/Cong,
>> >>      Could you pull master branch and test it again? maybe you need
>> >> try $git clean -dxf first and reply the result.
>> >>
>> >> Thanks,
>> >> Wind
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