| Current File : //usr/include/gstreamer-0.10/gst/rtp/gstrtpbuffer.h |
/* GStreamer
* Copyright (C) <2005> Philippe Khalaf <burger@speedy.org>
* <2005> Wim Taymans <wim@fluendo.com>
*
* gstrtpbuffer.h: various helper functions to manipulate buffers
* with RTP payload.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_RTPBUFFER_H__
#define __GST_RTPBUFFER_H__
#include <gst/gst.h>
#include <gst/rtp/gstrtppayloads.h>
G_BEGIN_DECLS
/**
* GST_RTP_VERSION:
*
* The supported RTP version 2.
*/
#define GST_RTP_VERSION 2
/* creating buffers */
void gst_rtp_buffer_allocate_data (GstBuffer *buffer, guint payload_len,
guint8 pad_len, guint8 csrc_count);
GstBuffer* gst_rtp_buffer_new_take_data (gpointer data, guint len);
GstBuffer* gst_rtp_buffer_new_copy_data (gpointer data, guint len);
GstBuffer* gst_rtp_buffer_new_allocate (guint payload_len, guint8 pad_len, guint8 csrc_count);
GstBuffer* gst_rtp_buffer_new_allocate_len (guint packet_len, guint8 pad_len, guint8 csrc_count);
GstBufferList* gst_rtp_buffer_list_from_buffer (GstBuffer * buffer);
guint gst_rtp_buffer_calc_header_len (guint8 csrc_count);
guint gst_rtp_buffer_calc_packet_len (guint payload_len, guint8 pad_len, guint8 csrc_count);
guint gst_rtp_buffer_calc_payload_len (guint packet_len, guint8 pad_len, guint8 csrc_count);
gboolean gst_rtp_buffer_validate_data (guint8 *data, guint len);
gboolean gst_rtp_buffer_validate (GstBuffer *buffer);
gboolean gst_rtp_buffer_list_validate (GstBufferList *list);
void gst_rtp_buffer_set_packet_len (GstBuffer *buffer, guint len);
guint gst_rtp_buffer_get_packet_len (GstBuffer *buffer);
guint gst_rtp_buffer_get_header_len (GstBuffer *buffer);
guint8 gst_rtp_buffer_get_version (GstBuffer *buffer);
void gst_rtp_buffer_set_version (GstBuffer *buffer, guint8 version);
gboolean gst_rtp_buffer_get_padding (GstBuffer *buffer);
void gst_rtp_buffer_set_padding (GstBuffer *buffer, gboolean padding);
void gst_rtp_buffer_pad_to (GstBuffer *buffer, guint len);
gboolean gst_rtp_buffer_get_extension (GstBuffer *buffer);
void gst_rtp_buffer_set_extension (GstBuffer *buffer, gboolean extension);
gboolean gst_rtp_buffer_get_extension_data (GstBuffer *buffer, guint16 *bits,
gpointer *data, guint *wordlen);
gboolean gst_rtp_buffer_set_extension_data (GstBuffer *buffer, guint16 bits, guint16 length);
guint32 gst_rtp_buffer_get_ssrc (GstBuffer *buffer);
guint32 gst_rtp_buffer_list_get_ssrc (GstBufferList *list);
void gst_rtp_buffer_set_ssrc (GstBuffer *buffer, guint32 ssrc);
void gst_rtp_buffer_list_set_ssrc (GstBufferList *list, guint32 ssrc);
guint8 gst_rtp_buffer_get_csrc_count (GstBuffer *buffer);
guint32 gst_rtp_buffer_get_csrc (GstBuffer *buffer, guint8 idx);
void gst_rtp_buffer_set_csrc (GstBuffer *buffer, guint8 idx, guint32 csrc);
gboolean gst_rtp_buffer_get_marker (GstBuffer *buffer);
void gst_rtp_buffer_set_marker (GstBuffer *buffer, gboolean marker);
guint8 gst_rtp_buffer_get_payload_type (GstBuffer *buffer);
guint8 gst_rtp_buffer_list_get_payload_type (GstBufferList *list);
void gst_rtp_buffer_set_payload_type (GstBuffer *buffer, guint8 payload_type);
void gst_rtp_buffer_list_set_payload_type (GstBufferList *list, guint8 payload_type);
guint16 gst_rtp_buffer_get_seq (GstBuffer *buffer);
guint16 gst_rtp_buffer_list_get_seq (GstBufferList *list);
void gst_rtp_buffer_set_seq (GstBuffer *buffer, guint16 seq);
guint16 gst_rtp_buffer_list_set_seq (GstBufferList *list, guint16 seq);
guint32 gst_rtp_buffer_get_timestamp (GstBuffer *buffer);
guint32 gst_rtp_buffer_list_get_timestamp (GstBufferList *list);
void gst_rtp_buffer_set_timestamp (GstBuffer *buffer, guint32 timestamp);
void gst_rtp_buffer_list_set_timestamp (GstBufferList *list, guint32 timestamp);
GstBuffer* gst_rtp_buffer_get_payload_buffer (GstBuffer *buffer);
GstBuffer* gst_rtp_buffer_get_payload_subbuffer (GstBuffer *buffer, guint offset, guint len);
guint gst_rtp_buffer_get_payload_len (GstBuffer *buffer);
guint gst_rtp_buffer_list_get_payload_len (GstBufferList *list);
gpointer gst_rtp_buffer_get_payload (GstBuffer *buffer);
/* some helpers */
guint32 gst_rtp_buffer_default_clock_rate (guint8 payload_type);
gint gst_rtp_buffer_compare_seqnum (guint16 seqnum1, guint16 seqnum2);
guint64 gst_rtp_buffer_ext_timestamp (guint64 *exttimestamp, guint32 timestamp);
gboolean gst_rtp_buffer_get_extension_onebyte_header (GstBuffer * buffer,
guint8 id,
guint nth,
gpointer * data,
guint * size);
gboolean gst_rtp_buffer_get_extension_twobytes_header (GstBuffer * buffer,
guint8 * appbits,
guint8 id,
guint nth,
gpointer * data,
guint * size);
gboolean gst_rtp_buffer_add_extension_onebyte_header (GstBuffer * buffer,
guint8 id,
gpointer data,
guint size);
gboolean gst_rtp_buffer_add_extension_twobytes_header (GstBuffer * buffer,
guint8 appbits,
guint8 id,
gpointer data,
guint size);
gboolean gst_rtp_buffer_list_get_extension_onebyte_header (GstBufferList * bufferlist,
guint group_idx,
guint8 id,
guint nth,
gpointer * data,
guint * size);
gboolean gst_rtp_buffer_list_get_extension_twobytes_header (GstBufferList * bufferlist,
guint group_idx,
guint8 * appbits,
guint8 id,
guint nth,
gpointer * data,
guint * size);
gboolean gst_rtp_buffer_list_add_extension_onebyte_header (GstBufferListIterator * it,
guint8 id,
gpointer data,
guint size);
gboolean gst_rtp_buffer_list_add_extension_twobytes_header (GstBufferListIterator * it,
guint8 appbits,
guint8 id,
gpointer data,
guint size);
G_END_DECLS
#endif /* __GST_RTPBUFFER_H__ */