Re: [Matterhorn-users] Antw: Re: Matterhorn with Epiphan VGA2PCIe Installation

Thu, 24 Mar 2011 08:48:18 -0700

On Mar 24, 2011, at 3:52 AM, Sebastian Pichelhofer wrote:

Unfortunately it does not start:

gst-launch-0.10 -e v4lsrc device=/dev/video0 ! ffenc_mpeg2video ! mpegpsmux ! filesink location=test.mpg
Setting pipeline to PAUSED ...
ERROR: Pipeline doesn't want to pause.
ERROR: from element /GstPipeline:pipeline0/GstV4lSrc:v4lsrc0: Could not read from resource.
Additional debug info:
v4lsrc_calls.c(183): gst_v4lsrc_capture_init (): /GstPipeline:pipeline0/GstV4lSrc:v4lsrc0:
Not enough buffers. We got 1, we want at least 2

Sebastian,

This is due to a misconfigured driver option. You need to supply v4l_num_buffers=2 while installing the kernel module.

If you use Epiphan's make file, you should edit the insmod line to have that kernel option. I have attached a modified make file for your convenience.

example: insmod vga2pci.ko v4l_num_buffers=2

Micah

Attachment: Makefile
Description: Binary data


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