| /* 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 |
| |
| |
| typedef struct _GstRTPBuffer GstRTPBuffer; |
| |
| /** |
| * GstRTPBuffer: |
| * @buffer: pointer to RTP buffer |
| * @state: internal state |
| * @n_map: number of mappings in @map |
| * @map: array of #GstMapInfo |
| * |
| * Data structure that points to an RTP packet. |
| * The size of the structure is made public to allow stack allocations. |
| */ |
| struct _GstRTPBuffer |
| { |
| GstBuffer *buffer; |
| guint state; |
| guint n_map; |
| GstMapInfo map[4]; |
| }; |
| |
| #define GST_RTP_BUFFER_INIT { NULL, 0, 0, { GST_MAP_INFO_INIT, GST_MAP_INFO_INIT, \ |
| GST_MAP_INFO_INIT, GST_MAP_INFO_INIT} } |
| |
| /* 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, gsize len); |
| GstBuffer* gst_rtp_buffer_new_copy_data (gpointer data, gsize 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); |
| |
| 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, gsize len); |
| gboolean gst_rtp_buffer_validate (GstBuffer *buffer); |
| |
| |
| gboolean gst_rtp_buffer_map (GstBuffer *buffer, GstMapFlags flags, GstRTPBuffer *rtp); |
| gboolean gst_rtp_buffer_unmap (GstRTPBuffer *rtp); |
| |
| void gst_rtp_buffer_set_packet_len (GstRTPBuffer *rtp, guint len); |
| guint gst_rtp_buffer_get_packet_len (GstRTPBuffer *rtp); |
| |
| guint gst_rtp_buffer_get_header_len (GstRTPBuffer *rtp); |
| |
| guint8 gst_rtp_buffer_get_version (GstRTPBuffer *rtp); |
| void gst_rtp_buffer_set_version (GstRTPBuffer *rtp, guint8 version); |
| |
| gboolean gst_rtp_buffer_get_padding (GstRTPBuffer *rtp); |
| void gst_rtp_buffer_set_padding (GstRTPBuffer *rtp, gboolean padding); |
| void gst_rtp_buffer_pad_to (GstRTPBuffer *rtp, guint len); |
| |
| gboolean gst_rtp_buffer_get_extension (GstRTPBuffer *rtp); |
| void gst_rtp_buffer_set_extension (GstRTPBuffer *rtp, gboolean extension); |
| gboolean gst_rtp_buffer_get_extension_data (GstRTPBuffer *rtp, guint16 *bits, |
| gpointer *data, guint *wordlen); |
| gboolean gst_rtp_buffer_set_extension_data (GstRTPBuffer *rtp, guint16 bits, guint16 length); |
| |
| guint32 gst_rtp_buffer_get_ssrc (GstRTPBuffer *rtp); |
| void gst_rtp_buffer_set_ssrc (GstRTPBuffer *rtp, guint32 ssrc); |
| |
| guint8 gst_rtp_buffer_get_csrc_count (GstRTPBuffer *rtp); |
| guint32 gst_rtp_buffer_get_csrc (GstRTPBuffer *rtp, guint8 idx); |
| void gst_rtp_buffer_set_csrc (GstRTPBuffer *rtp, guint8 idx, guint32 csrc); |
| |
| gboolean gst_rtp_buffer_get_marker (GstRTPBuffer *rtp); |
| void gst_rtp_buffer_set_marker (GstRTPBuffer *rtp, gboolean marker); |
| |
| guint8 gst_rtp_buffer_get_payload_type (GstRTPBuffer *rtp); |
| void gst_rtp_buffer_set_payload_type (GstRTPBuffer *rtp, guint8 payload_type); |
| |
| guint16 gst_rtp_buffer_get_seq (GstRTPBuffer *rtp); |
| void gst_rtp_buffer_set_seq (GstRTPBuffer *rtp, guint16 seq); |
| |
| guint32 gst_rtp_buffer_get_timestamp (GstRTPBuffer *rtp); |
| void gst_rtp_buffer_set_timestamp (GstRTPBuffer *rtp, guint32 timestamp); |
| |
| GstBuffer* gst_rtp_buffer_get_payload_buffer (GstRTPBuffer *rtp); |
| GstBuffer* gst_rtp_buffer_get_payload_subbuffer (GstRTPBuffer *rtp, guint offset, guint len); |
| |
| guint gst_rtp_buffer_get_payload_len (GstRTPBuffer *rtp); |
| gpointer gst_rtp_buffer_get_payload (GstRTPBuffer *rtp); |
| |
| /* 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 (GstRTPBuffer *rtp, |
| guint8 id, |
| guint nth, |
| gpointer * data, |
| guint * size); |
| gboolean gst_rtp_buffer_get_extension_twobytes_header (GstRTPBuffer *rtp, |
| guint8 * appbits, |
| guint8 id, |
| guint nth, |
| gpointer * data, |
| guint * size); |
| |
| gboolean gst_rtp_buffer_add_extension_onebyte_header (GstRTPBuffer *rtp, |
| guint8 id, |
| gpointer data, |
| guint size); |
| gboolean gst_rtp_buffer_add_extension_twobytes_header (GstRTPBuffer *rtp, |
| guint8 appbits, |
| guint8 id, |
| gpointer data, |
| guint size); |
| |
| |
| G_END_DECLS |
| |
| #endif /* __GST_RTPBUFFER_H__ */ |
| |
