[gstreamer-bugs] [Bug 456040] New: v4l2src init bug

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-good | Ver: HEAD CVS
           Summary: v4l2src init bug
           Product: GStreamer
           Version: HEAD CVS
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: rkrikava at gmail.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


The v4l2src queue-size property is initialized to 0 causing:

Pipeline is live and does not need PREROLL ...
ERROR: from element /pipeline0/v4l2src0: Could not get buffers from device
'/dev/video0'.
Additional debug info:
v4l2src_calls.c(1025): gst_v4l2src_capture_init (): /pipeline0/v4l2src0:
error requesting 0 buffers: Cannot allocate memory
ERROR: pipeline doesn't want to preroll.
Setting pipeline to PAUSED ...

The fix is:

Index: sys/v4l2/gstv4l2src.c
===================================================================
RCS file: /cvs/gstreamer/gst-plugins-good/sys/v4l2/gstv4l2src.c,v
retrieving revision 1.83
diff -u -r1.83 gstv4l2src.c
--- sys/v4l2/gstv4l2src.c       12 Jun 2007 11:23:00 -0000      1.83
+++ sys/v4l2/gstv4l2src.c       11 Jul 2007 21:33:16 -0000
@@ -298,7 +298,7 @@
       gst_v4l2_get_input, gst_v4l2_set_input, NULL);

   /* number of buffers requested */
-  v4l2src->num_buffers = 0;
+  v4l2src->num_buffers = GST_V4L2_MIN_BUFFERS;

   v4l2src->formats = NULL;


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