mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-27 20:21:24 +00:00
ad1970eae2
Original commit message from CVS: 2005-07-15 Andy Wingo <wingo@pobox.com> * tools/gst-typefind.c: Update, add copyright block. * gst/base/gstbasesrc.c (gst_base_src_default_negotiate): Normalize and truncate caps before fixation. * gst/gstcaps.h: * gst/gstcaps.c (gst_caps_truncate): New function, destructively discards all but the first structure from its argument.
172 lines
2.5 KiB
Text
172 lines
2.5 KiB
Text
<!-- ##### SECTION Title ##### -->
|
|
gstdataprotocol
|
|
|
|
<!-- ##### SECTION Short_Description ##### -->
|
|
implements GStreamer Data Protocol to serialize buffers, caps and events.
|
|
|
|
<!-- ##### SECTION Long_Description ##### -->
|
|
<para>
|
|
This helper library provides serialization of GstBuffer, GstCaps and
|
|
GstEvent structures.
|
|
</para>
|
|
|
|
<para>
|
|
This serialization can be useful when GStreamer needs to interface with
|
|
the outside world to transport data between different GStreamer pipelines.
|
|
The connections with the outside world generally don't have mechanisms
|
|
to transport properties of these structures.
|
|
</para>
|
|
<para>
|
|
For example, transporting buffers across named pipes doesn't keep the
|
|
buffer size. Network elements that transport GStreamer data across
|
|
network connections also need a protocol to do this.
|
|
</para>
|
|
|
|
<!-- ##### SECTION See_Also ##### -->
|
|
<para>
|
|
#GstBuffer, #GstCaps, #GstEvent
|
|
</para>
|
|
|
|
<!-- ##### SECTION Stability_Level ##### -->
|
|
|
|
|
|
<!-- ##### ENUM GstDPHeaderFlag ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@GST_DP_HEADER_FLAG_NONE:
|
|
@GST_DP_HEADER_FLAG_CRC_HEADER:
|
|
@GST_DP_HEADER_FLAG_CRC_PAYLOAD:
|
|
@GST_DP_HEADER_FLAG_CRC:
|
|
|
|
<!-- ##### ENUM GstDPPayloadType ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@GST_DP_PAYLOAD_NONE:
|
|
@GST_DP_PAYLOAD_BUFFER:
|
|
@GST_DP_PAYLOAD_CAPS:
|
|
@GST_DP_PAYLOAD_EVENT_NONE:
|
|
|
|
<!-- ##### FUNCTION gst_dp_header_payload_length ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@header:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_dp_header_payload_type ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@header:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_dp_header_from_buffer ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@buffer:
|
|
@flags:
|
|
@length:
|
|
@header:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_dp_packet_from_caps ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@caps:
|
|
@flags:
|
|
@length:
|
|
@header:
|
|
@payload:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_dp_packet_from_event ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@event:
|
|
@flags:
|
|
@length:
|
|
@header:
|
|
@payload:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_dp_buffer_from_header ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@header_length:
|
|
@header:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_dp_caps_from_packet ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@header_length:
|
|
@header:
|
|
@payload:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_dp_event_from_packet ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@header_length:
|
|
@header:
|
|
@payload:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_dp_validate_header ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@header_length:
|
|
@header:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_dp_validate_payload ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@header_length:
|
|
@header:
|
|
@payload:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_dp_validate_packet ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@header_length:
|
|
@header:
|
|
@payload:
|
|
@Returns:
|
|
|
|
|