v4l2: remove unused function

diff --git a/sys/v4l2/v4l2src_calls.c b/sys/v4l2/v4l2src_calls.c
index 1104d70..e142989 100644 (file)
--- a/sys/v4l2/v4l2src_calls.c
+++ b/sys/v4l2/v4l2src_calls.c
@@ -87,122 +87,6 @@ queue_failed:
 }
 
 /******************************************************
- * gst_v4l2src_grab_frame ():
- *   grab a frame for capturing
- * return value: GST_FLOW_OK, GST_FLOW_WRONG_STATE or GST_FLOW_ERROR
- ******************************************************/
-GstFlowReturn
-gst_v4l2src_grab_frame (GstV4l2Src * v4l2src, GstBuffer ** buf)
-{
-#define NUM_TRIALS 50
-  GstV4l2Object *v4l2object;
-  GstV4l2BufferPool *pool;
-  gint32 trials = NUM_TRIALS;
-  GstBuffer *pool_buffer;
-  gboolean need_copy;
-  gint ret;
-
-  v4l2object = v4l2src->v4l2object;
-  pool = v4l2src->pool;
-  if (!pool)
-    goto no_buffer_pool;
-
-  GST_DEBUG_OBJECT (v4l2src, "grab frame");
-
-  for (;;) {
-    if (v4l2object->can_poll_device) {
-      ret = gst_poll_wait (v4l2object->poll, GST_CLOCK_TIME_NONE);
-      if (G_UNLIKELY (ret < 0)) {
-        if (errno == EBUSY)
-          goto stopped;
-        if (errno == ENXIO) {
-          GST_DEBUG_OBJECT (v4l2src,
-              "v4l2 device doesn't support polling. Disabling");
-          v4l2object->can_poll_device = FALSE;
-        } else {
-          if (errno != EAGAIN && errno != EINTR)
-            goto select_error;
-        }
-      }
-    }
-
-    pool_buffer = GST_BUFFER (gst_v4l2_buffer_pool_dqbuf (pool));
-    if (pool_buffer)
-      break;
-
-    GST_WARNING_OBJECT (pool->v4l2elem, "trials=%d", trials);
-
-    /* if the sync() got interrupted, we can retry */
-    switch (errno) {
-      case EINVAL:
-      case ENOMEM:
-        /* fatal */
-        return GST_FLOW_ERROR;
-
-      case EAGAIN:
-      case EIO:
-      case EINTR:
-      default:
-        /* try again, until too many trials */
-        break;
-    }
-
-    /* check nr. of attempts to capture */
-    if (--trials == -1) {
-      goto too_many_trials;
-    }
-  }
-
-  /* if we are handing out the last buffer in the pool, we need to make a
-   * copy and bring the buffer back in the pool. */
-  need_copy = v4l2src->always_copy
-      || !gst_v4l2_buffer_pool_available_buffers (pool);
-
-  if (G_UNLIKELY (need_copy)) {
-    if (!v4l2src->always_copy) {
-      GST_CAT_LOG_OBJECT (GST_CAT_PERFORMANCE, v4l2src,
-          "running out of buffers, making a copy to reuse current one");
-    }
-    *buf = gst_buffer_copy (pool_buffer);
-    GST_BUFFER_FLAG_UNSET (*buf, GST_BUFFER_FLAG_READONLY);
-    /* this will requeue */
-    gst_buffer_unref (pool_buffer);
-  } else {
-    *buf = pool_buffer;
-  }
-  /* we set the buffer metadata in gst_v4l2src_create() */
-
-  return GST_FLOW_OK;
-
-  /* ERRORS */
-no_buffer_pool:
-  {
-    GST_DEBUG ("no buffer pool");
-    return GST_FLOW_WRONG_STATE;
-  }
-select_error:
-  {
-    GST_ELEMENT_ERROR (pool->v4l2elem, RESOURCE, READ, (NULL),
-        ("select error %d: %s (%d)", ret, g_strerror (errno), errno));
-    return GST_FLOW_ERROR;
-  }
-stopped:
-  {
-    GST_DEBUG ("stop called");
-    return GST_FLOW_WRONG_STATE;
-  }
-too_many_trials:
-  {
-    GST_ELEMENT_ERROR (pool->v4l2elem, RESOURCE, FAILED,
-        (_("Failed trying to get video frames from device '%s'."),
-            v4l2object->videodev),
-        (_("Failed after %d tries. device %s. system error: %s"),
-            NUM_TRIALS, v4l2object->videodev, g_strerror (errno)));
-    return GST_FLOW_ERROR;
-  }
-}
-
-/******************************************************
  * gst_v4l2src_set_capture():
  *   set capture parameters
  * return value: TRUE on success, FALSE on error