[PATCH v2 2/5] gpu: ipu-v3: Add mem2mem image conversion support to IC

[Enrico Weigelt, metux IT consult]

Am 28.05.2015 um 12:44 schrieb Philipp Zabel:

Hi,

 >> Are these patches same as in your git branch tmp/imx-ipu-scaler ?
>
> No, that is an older version.

Where can I get the recent ones ?
Could you push it to your public repo ?

>> when using it w/ gst for video playback, can be directly pass buffers
>> between VPU, IPU and FB (or let them directly write into shared
>> buffers), so CPU doesn't need to act on each frame for each step
>> in the decoding pipeline ?
>
> Check out the (capture/output-)io-mode parameters, that's what the
> dmabuf/dmabuf-import option pairs are for.

Tried dmabuf, but load stays at the same (77..80% CPU, 1.2 loadavg).
dmabuf-import doesnt run at all:

root at KoMo:/usr/share/videos/komo gst-launch-1.0 filesrc
location=montage.mp4 \! qtdemux \! h264parse \! v4l2video4dec
output-io-mode=5 \! v4l2video0convert capture-io-mode=5 output-io-mode=4
\! fbdevsink

Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
ERROR: from element
/GstPipeline:pipeline0/v4l2video0convert:v4l2video0convert0: No
downstream pool to import from.
Additional debug info:
gstv4l2object.c(3441): gst_v4l2_object_decide_allocation ():
/GstPipeline:pipeline0/v4l2video0convert:v4l2video0convert0:
When importing DMABUF or USERPTR, we need a pool to import from
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
Freeing pipeline ...


Perhaps not implemented yet in the old version of the patches ?

By the way: do you have any idea whether the proprietary driver
(or the gpus itself) might talk to ipu and vpu ?


cu
--
Enrico Weigelt, metux IT consult
+49-151-27565287
MELAG Medizintechnik oHG Sitz Berlin Registergericht AG Charlottenburg HRA 21333 B

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