Appsink Vs. Last-Sample

[Brendan Lockhart]

>>You're probably right that the major bottleneck is most likely copying the
>>data from the CPU to the GPU. I looked into it, and I think I can have
>>gstamcvideodec decode directly into GL memory.
>>Unfortunately when I try to do this gstamcvideodec logs:
>>"ERR amcvideodec
>>gstamcvideodec.c:1977:gst_amc_video_dec_set_format:<amcvideodec-omxexynosavcdec0>
>Codec only supports GL output but downstream does not">These caps don't
intersect with amcvideodec's caps as they have different texture-target
fields.  amcvideodec only ever does texture-target=external-oes.

I switched "fakesink" with "glimagesink". I no longer get the "GL Output
disabled" error, and performance is much better.

Thank you guys for taking the time to help.

On Wed, Mar 22, 2017 at 3:58 AM, Matthew Waters <ystreet00 at gmail.com> wrote:

>
>
> On 22/03/17 09:56, Brendan Lockhart wrote:
>
> >You're probably right that the major bottleneck is most likely copying the
> >data from the CPU to the GPU. I looked into it, and I think I can have
> >gstamcvideodec decode directly into GL memory.
> >Unfortunately when I try to do this gstamcvideodec logs:
> >"ERR amcvideodec
> >gstamcvideodec.c:1977:gst_amc_video_dec_set_format:<
> amcvideodec-omxexynosavcdec0>
> >Codec only supports GL output but downstream does not"
> >
> >This is despite that fact that, before that error, gstamcvideodec logs:
> >
> >"gstamcvideodec.c:1904:gst_amc_video_dec_set_format:<
> amcvideodec-omxexynosavcdec0>
> >Available downstream caps: video/x-raw(memory:GLMemory),
> >format=(string)RGBA, texture-target=(string)external-oes"
> >
> >Which I *believe *should intersect properly with amcvideodec's required GL
> >output sink caps.
> >Could this be a bug, or am I doing something wrong here?
> >This is with Gstreamer 1.10.4, and I'm setting playbin's videosink to
> >"video/x-raw(memory:GLMemory),texture-target=2D,format=RGBA ! fakesink
> >sync=1 qos=1 name=sink"
>
>
> These caps don't intersect with amcvideodec's caps as they have different
> texture-target fields.  amcvideodec only ever does
> texture-target=external-oes.
>
> Cheers
> -Matt
>
> Does anyone have any suggestions on how I can figure out if this is a bug
> in my application code, or a bug in gstamcvideodec?
> Any advice or feedback would be more than appreciated.
>
>
>
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