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deinterlace: Adds some docs to the new tests

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Adds some docs explaining the utility functions of the check
tests of deinterlace
This commit is contained in:
Thiago Santos 2010-01-05 18:22:49 -03:00
parent 80e66a5db4
commit 096c759427
1 changed files with 30 additions and 0 deletions
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30
tests/check/elements/deinterlace.c
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@ -77,6 +77,7 @@ static GstPad *sinkpad;
static GstElement *pipeline;
/* sets up deinterlace and shortcut pointers to its pads */
static void
setup_deinterlace ()
{
@ -89,6 +90,16 @@ setup_deinterlace ()
fail_unless (srcpad != NULL);
}
/* sets up a basic test pipeline containing:
*
* videotestsrc ! capsfilter ! deinterlace ! fakesink
*
* The parameters set the capsfilter caps and the num-buffers
* property of videotestsrc
*
* It is useful for adding buffer probes to deinterlace pads
* and validating inputs/outputs
*/
static void
setup_test_pipeline (GstCaps * filtercaps, gint numbuffers)
{
@ -119,6 +130,11 @@ setup_test_pipeline (GstCaps * filtercaps, gint numbuffers)
gst_caps_unref (filtercaps);
}
/*
* Checks if 2 buffers are equal
*
* Equals means same caps and same data
*/
static gboolean
test_buffer_equals (GstBuffer * buf_a, GstBuffer * buf_b)
{
@ -152,6 +168,10 @@ sinkpad_enqueue_buffer (GstPad * pad, GstBuffer * buf, gpointer data)
return TRUE;
}
/*
* pad buffer probe that compares the buffer with the top one
* in the GQueue passed as the user data
*/
static gboolean
srcpad_dequeue_and_compare_buffer (GstPad * pad, GstBuffer * buf, gpointer data)
{
@ -168,6 +188,12 @@ srcpad_dequeue_and_compare_buffer (GstPad * pad, GstBuffer * buf, gpointer data)
return TRUE;
}
/*
* Utility function that sets up a pipeline with deinterlace for
* validanting that it operates in passthrough mode when receiving
* data with 'filtercaps' as the input caps and operating in 'mode'
* mode
*/
static void
deinterlace_check_passthrough (gint mode, const gchar * filtercaps)
{
@ -199,6 +225,10 @@ deinterlace_check_passthrough (gint mode, const gchar * filtercaps)
g_queue_free (queue);
}
/*
* Sets the caps on deinterlace sinkpad and validates the
* caps that is set on the srcpad
*/
static void
deinterlace_set_caps_and_check (GstCaps * input, gboolean must_deinterlace)
{