G_BEGIN_DECLS
-extern GType _gst_buffer_type;
+GST_EXPORT GType _gst_buffer_type;
typedef struct _GstBuffer GstBuffer;
typedef struct _GstBufferPool GstBufferPool;
-/**
- * GST_BUFFER_TRACE_NAME:
- *
- * The name used for tracing memory allocations.
- */
-#define GST_BUFFER_TRACE_NAME "GstBuffer"
-
#define GST_TYPE_BUFFER (_gst_buffer_type)
#define GST_IS_BUFFER(obj) (GST_IS_MINI_OBJECT_TYPE(obj, GST_TYPE_BUFFER))
#define GST_BUFFER_CAST(obj) ((GstBuffer *)(obj))
* video this is typically the end of a frame boundary, for audio
* this is usually the end of a talkspurt.
* @GST_BUFFER_FLAG_HEADER: the buffer contains header information that is
- * needed to decode the following data
+ * needed to decode the following data. The buffer
+ * is also part of the headers of the STREAM_CONFIG event.
* @GST_BUFFER_FLAG_GAP: the buffer has been created to fill a gap in the
* stream and contains media neutral data (elements can
* switch to optimized code path that ignores the buffer
* @GST_BUFFER_FLAG_DROPPABLE: the buffer can be dropped without breaking the
* stream, for example to reduce bandwidth.
* @GST_BUFFER_FLAG_DELTA_UNIT: this unit cannot be decoded independently.
- * @GST_BUFFER_FLAG_IN_CAPS: the buffer has been added as a field in a #GstCaps.
* @GST_BUFFER_FLAG_LAST: additional media specific flags can be added starting from
* this flag.
*
GST_BUFFER_FLAG_GAP = (GST_MINI_OBJECT_FLAG_LAST << 7),
GST_BUFFER_FLAG_DROPPABLE = (GST_MINI_OBJECT_FLAG_LAST << 8),
GST_BUFFER_FLAG_DELTA_UNIT = (GST_MINI_OBJECT_FLAG_LAST << 9),
- GST_BUFFER_FLAG_IN_CAPS = (GST_MINI_OBJECT_FLAG_LAST << 10),
- GST_BUFFER_FLAG_LAST = (GST_MINI_OBJECT_FLAG_LAST << 20)
+ GST_BUFFER_FLAG_LAST = (GST_MINI_OBJECT_FLAG_LAST << 16)
} GstBufferFlags;
/**
/* allocation */
GstBuffer * gst_buffer_new (void);
-GstBuffer * gst_buffer_new_allocate (const GstAllocator * allocator, gsize size, gsize align);
+GstBuffer * gst_buffer_new_allocate (GstAllocator * allocator, gsize size, gsize align);
GstBuffer * gst_buffer_new_wrapped_full (gpointer data, GFreeFunc free_func, gsize offset, gsize size);
GstBuffer * gst_buffer_new_wrapped (gpointer data, gsize size);
/* memory blocks */
guint gst_buffer_n_memory (GstBuffer *buffer);
void gst_buffer_take_memory (GstBuffer *buffer, gint idx, GstMemory *mem);
-GstMemory * gst_buffer_peek_memory (GstBuffer *buffer, guint idx, GstMapFlags flags);
-void gst_buffer_remove_memory_range (GstBuffer *buffer, guint idx, guint length);
+void gst_buffer_replace_memory (GstBuffer *buffer, gint idx, GstMemory *mem);
+GstMemory * gst_buffer_get_memory (GstBuffer *buffer, gint idx);
+void gst_buffer_remove_memory_range (GstBuffer *buffer, guint idx, gint length);
+#define gst_buffer_append_memory(b,m) gst_buffer_take_memory ((b), -1, (m))
+#define gst_buffer_replace_all_memory(b,m) gst_buffer_replace_memory ((b), -1, (m))
+#define gst_buffer_get_merged_memory(b) gst_buffer_get_memory ((b), -1)
/**
* gst_buffer_remove_memory:
* @b: a #GstBuffer.
*
* Remove the memory block in @b at @i.
*/
-#define gst_buffer_remove_memory(b,i) gst_buffer_remove_memory_range ((b), (i), 1)
+#define gst_buffer_remove_memory(b,i) gst_buffer_remove_memory_range ((b), (i), 1)
+#define gst_buffer_remove_all_memory(b) gst_buffer_remove_memory_range ((b), 0, -1)
gsize gst_buffer_fill (GstBuffer *buffer, gsize offset,
gconstpointer src, gsize size);
*/
#define gst_buffer_set_size(b,s) gst_buffer_resize ((b), 0, (s))
-/* getting memory */
-gpointer gst_buffer_map (GstBuffer *buffer, gsize *size, gsize *maxsize,
- GstMapFlags flags);
-gboolean gst_buffer_unmap (GstBuffer *buffer, gpointer data, gssize size);
+gboolean gst_buffer_map (GstBuffer *buffer, GstMapInfo *info, GstMapFlags flags);
+void gst_buffer_unmap (GstBuffer *buffer, GstMapInfo *info);
/* refcounting */
/**
/* metadata */
#include <gst/gstmeta.h>
-GstMeta * gst_buffer_get_meta (GstBuffer *buffer, const GstMetaInfo *info);
+/**
+ * GstBufferMetaFunc:
+ * @buffer: a #GstBuffer
+ * @meta: a pointer to a #GstMeta
+ * @user_data: user data passed to gst_buffer_foreach_meta()
+ *
+ * A function that will be called from gst_buffer_foreach_meta(). The @meta
+ * field will point to a the reference of the meta.
+ *
+ * @buffer should not be modified from this callback.
+ *
+ * When this function returns %TRUE, the next meta will be
+ * returned. When %FALSE is returned, gst_buffer_foreach_meta() will return.
+ *
+ * When @meta is set to NULL, the item will be removed from the buffer.
+ *
+ * Returns: %FALSE when gst_buffer_foreach_meta() should stop
+ */
+typedef gboolean (*GstBufferForeachMetaFunc) (GstBuffer *buffer, GstMeta **meta,
+ gpointer user_data);
+
+GstMeta * gst_buffer_get_meta (GstBuffer *buffer, GType api);
GstMeta * gst_buffer_add_meta (GstBuffer *buffer, const GstMetaInfo *info,
gpointer params);
gboolean gst_buffer_remove_meta (GstBuffer *buffer, GstMeta *meta);
GstMeta * gst_buffer_iterate_meta (GstBuffer *buffer, gpointer *state);
+void gst_buffer_foreach_meta (GstBuffer *buffer,
+ GstBufferForeachMetaFunc func,
+ gpointer user_data);
+
/**
* gst_value_set_buffer:
* @v: a #GValue to receive the data
projects / platform / upstream / gstreamer.git / blobdiff