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info: flesh out GST_PTR_FORMAT docs a bit

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This commit is contained in:
Tim-Philipp Müller 2016-06-14 19:16:33 +01:00
parent b9a4a2a952
commit 09d5ff4097
1 changed files with 13 additions and 2 deletions
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15
gst/gstinfo.h
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@ -262,7 +262,15 @@ struct _GstDebugCategory {
/**
* GST_PTR_FORMAT:
*
* printf format type used to debug GStreamer types.
* printf format type used to debug GStreamer types. You can use this in
* combination with GStreamer's debug logging system as well as the functions
* gst_info_vasprintf(), gst_info_strdup_vprintf() and gst_info_strdup_printf()
* to pretty-print the following types: #GstCaps, #GstStructure,
* #GstCapsFeatures, #GstTagList, #GstDateTime, #GstBuffer, #GstBufferList,
* #GstMessage, #GstEvent, #GstQuery, #GstContext, #GstPad, #GstObject. All
* #GObject types will be printed as typename plus pointer, and everything
* else will simply be printed as pointer address.
*
* This can only be used on types whose size is >= sizeof(gpointer).
*/
#define GST_PTR_FORMAT "p\aA"
@ -270,7 +278,10 @@ struct _GstDebugCategory {
/**
* GST_SEGMENT_FORMAT:
*
* printf format type used to debug GStreamer segments.
* printf format type used to debug GStreamer segments. You can use this in
* combination with GStreamer's debug logging system as well as the functions
* gst_info_vasprintf(), gst_info_strdup_vprintf() and gst_info_strdup_printf()
* to pretty-print #GstSegment structures.
* This can only be used on pointers to GstSegment structures.
*/
#define GST_SEGMENT_FORMAT "p\aB"