gstreamer/docs/gst/tmpl/gstbuffer.sgml

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<!-- ##### SECTION Title ##### -->
GstBuffer
<!-- ##### SECTION Short_Description ##### -->
Data-passing buffer type, supporting sub-buffers and metadata
<!-- ##### SECTION Long_Description ##### -->
<para>
Buffers are the basic unit of data transfer in GST. The GstBuffer type
provides all the state necessary to define a region of memory as part of a
stream. Sub-buffer are also supported, allowing a smaller region of a
buffer to become its own buffer, with mechanisms in place to ensure that
nither memory space goes away. Metadata is supported as a list of
pointers to arbitrary metadata.
</para>
<!-- ##### SECTION See_Also ##### -->
<para>
</para>
<!-- ##### MACRO GST_BUFFER ##### -->
<para>
</para>
@buf:
<!-- ##### MACRO GST_BUFFER_FLAGS ##### -->
<para>
</para>
@buf:
<!-- ##### MACRO GST_BUFFER_FLAG_SET ##### -->
<para>
</para>
@buf:
@flag:
<!-- ##### MACRO GST_BUFFER_FLAG_UNSET ##### -->
<para>
</para>
@buf:
@flag:
<!-- ##### MACRO GST_BUFFER_TYPE ##### -->
<para>
</para>
@buf:
<!-- ##### MACRO GST_BUFFER_DATA ##### -->
<para>
</para>
@buf:
<!-- ##### MACRO GST_BUFFER_SIZE ##### -->
<para>
</para>
@buf:
<!-- ##### MACRO GST_BUFFER_OFFSET ##### -->
<para>
</para>
@buf:
<!-- ##### MACRO GST_BUFFER_MAXSIZE ##### -->
<para>
</para>
@buf:
<!-- ##### MACRO GST_BUFFER_TIMESTAMP ##### -->
<para>
</para>
@buf:
<!-- ##### MACRO GST_BUFFER_LOCK ##### -->
<para>
</para>
@buf:
<!-- ##### MACRO GST_BUFFER_TRYLOCK ##### -->
<para>
</para>
@buf:
<!-- ##### MACRO GST_BUFFER_UNLOCK ##### -->
<para>
</para>
@buf:
<!-- ##### ENUM GstBufferFlags ##### -->
<para>
</para>
@GST_BUFFER_READONLY:
@GST_BUFFER_EOS:
@GST_BUFFER_ORIGINAL:
@GST_BUFFER_DONTFREE:
<!-- ##### STRUCT GstBuffer ##### -->
<para>
</para>
@lock:
@flags:
@data:
@size:
@maxsize:
@offset:
@timestamp:
@maxage:
@metas:
@parent:
<!-- ##### FUNCTION gst_buffer_new ##### -->
<para>
</para>
@Returns:
<!-- ##### FUNCTION gst_buffer_create_sub ##### -->
<para>
</para>
@parent:
@offset:
@size:
@Returns:
<!-- ##### FUNCTION gst_buffer_ref ##### -->
<para>
</para>
@buffer:
<!-- ##### FUNCTION gst_buffer_ref_by_count ##### -->
<para>
</para>
@buffer:
@count:
<!-- ##### FUNCTION gst_buffer_unref ##### -->
<para>
</para>
@buffer:
<!-- ##### FUNCTION gst_buffer_destroy ##### -->
<para>
</para>
@buffer:
<!-- ##### FUNCTION gst_buffer_add_meta ##### -->
<para>
</para>
@buffer:
@meta:
<!-- ##### FUNCTION gst_buffer_get_first_meta ##### -->
<para>
</para>
@buffer:
@Returns:
<!-- ##### FUNCTION gst_buffer_get_metas ##### -->
<para>
</para>
@buffer:
@Returns:
<!-- ##### FUNCTION gst_buffer_remove_meta ##### -->
<para>
</para>
@buffer:
@meta: