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pad: add a unchecked variant for pull

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Add internal _get_range_unchecked thats is called from _get_range and
_pull_range.
This commit is contained in:
Stefan Kost 2010-09-08 09:37:42 +03:00
parent 63667aa9b4
commit 770694f0f1
1 changed files with 34 additions and 28 deletions
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62
gst/gstpad.c
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@ -4630,29 +4630,8 @@ not_connected:
}
}
/**
* gst_pad_get_range:
* @pad: a src #GstPad, returns #GST_FLOW_ERROR if not.
* @offset: The start offset of the buffer
* @size: The length of the buffer
* @buffer: a pointer to hold the #GstBuffer, returns #GST_FLOW_ERROR if %NULL.
*
* When @pad is flushing this function returns #GST_FLOW_WRONG_STATE
* immediatly and @buffer is %NULL.
*
* Calls the getrange function of @pad, see #GstPadGetRangeFunction for a
* description of a getrange function. If @pad has no getrange function
* installed (see gst_pad_set_getrange_function()) this function returns
* #GST_FLOW_NOT_SUPPORTED.
*
* This is a lowlevel function. Usualy gst_pad_pull_range() is used.
*
* Returns: a #GstFlowReturn from the pad.
*
* MT safe.
*/
GstFlowReturn
gst_pad_get_range (GstPad * pad, guint64 offset, guint size,
static GstFlowReturn
gst_pad_get_range_unchecked (GstPad * pad, guint64 offset, guint size,
GstBuffer ** buffer)
{
GstFlowReturn ret;
@ -4661,10 +4640,6 @@ gst_pad_get_range (GstPad * pad, guint64 offset, guint size,
GstCaps *caps;
gboolean caps_changed;
g_return_val_if_fail (GST_IS_PAD (pad), GST_FLOW_ERROR);
g_return_val_if_fail (GST_PAD_IS_SRC (pad), GST_FLOW_ERROR);
g_return_val_if_fail (buffer != NULL, GST_FLOW_ERROR);
GST_PAD_STREAM_LOCK (pad);
GST_OBJECT_LOCK (pad);
@ -4754,6 +4729,37 @@ not_negotiated:
}
}
/**
* gst_pad_get_range:
* @pad: a src #GstPad, returns #GST_FLOW_ERROR if not.
* @offset: The start offset of the buffer
* @size: The length of the buffer
* @buffer: a pointer to hold the #GstBuffer, returns #GST_FLOW_ERROR if %NULL.
*
* When @pad is flushing this function returns #GST_FLOW_WRONG_STATE
* immediatly and @buffer is %NULL.
*
* Calls the getrange function of @pad, see #GstPadGetRangeFunction for a
* description of a getrange function. If @pad has no getrange function
* installed (see gst_pad_set_getrange_function()) this function returns
* #GST_FLOW_NOT_SUPPORTED.
*
* This is a lowlevel function. Usualy gst_pad_pull_range() is used.
*
* Returns: a #GstFlowReturn from the pad.
*
* MT safe.
*/
GstFlowReturn
gst_pad_get_range (GstPad * pad, guint64 offset, guint size,
GstBuffer ** buffer)
{
g_return_val_if_fail (GST_IS_PAD (pad), GST_FLOW_ERROR);
g_return_val_if_fail (GST_PAD_IS_SRC (pad), GST_FLOW_ERROR);
g_return_val_if_fail (buffer != NULL, GST_FLOW_ERROR);
return gst_pad_get_range_unchecked (pad, offset, size, buffer);
}
/**
* gst_pad_pull_range:
@ -4813,7 +4819,7 @@ gst_pad_pull_range (GstPad * pad, guint64 offset, guint size,
gst_object_ref (peer);
GST_OBJECT_UNLOCK (pad);
ret = gst_pad_get_range (peer, offset, size, buffer);
ret = gst_pad_get_range_unchecked (peer, offset, size, buffer);
gst_object_unref (peer);