Fix for bttv driver (which doesn't seem to follow the v4l2 spec 100%?

Original commit message from CVS:
Fix for bttv driver (which doesn't seem to follow the v4l2 spec 100%?

diff --git a/sys/v4l2/v4l2src_calls.c b/sys/v4l2/v4l2src_calls.c
index 576b6fb..9e2e93e 100644 (file)
--- a/sys/v4l2/v4l2src_calls.c
+++ b/sys/v4l2/v4l2src_calls.c
@@ -266,12 +266,17 @@ gst_v4l2src_capture_init (GstV4l2Src *v4l2src)
                        p.parm.capture.readbuffers = v4l2src->breq.count;
                        ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd,
                              VIDIOC_S_PARM, &p);
+                       v4l2src->breq.count = p.parm.capture.readbuffers;
                }
        }
+       if (v4l2src->breq.count < MIN_BUFFERS_QUEUED) {
+               v4l2src->breq.count = MIN_BUFFERS_QUEUED;
+       }
 
        /* request buffer info */
        v4l2src->breq.type = v4l2src->format.type;
-       if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_REQBUFS, &v4l2src->breq) < 0) {
+       if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd,
+                 VIDIOC_REQBUFS, &v4l2src->breq) < 0) {
                gst_element_error(GST_ELEMENT(v4l2src),
                        "Error requesting buffers (%d) for %s: %s",
                        v4l2src->breq.count, GST_V4L2ELEMENT(v4l2src)->device, g_strerror(errno));