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Original commit message from CVS: * docs/libs/gst-plugins-base-libs-sections.txt: * gst-libs/gst/rtp/gstrtcpbuffer.c: (gst_rtcp_packet_get_rb), (gst_rtcp_packet_sdes_copy_entry), (gst_rtcp_ntp_to_unix), (gst_rtcp_unix_to_ntp): * gst-libs/gst/rtp/gstrtcpbuffer.h: Fix parsing of RB blocks. Fix docs. Added helper functions to convert to/from UNIX and NTP time. API: gst_rtcp_ntp_to_unix() API: gst_rtcp_unix_to_ntp() * gst-libs/gst/rtp/gstrtpbuffer.c: (gst_rtp_buffer_validate_data), (gst_rtp_buffer_get_header_len), (gst_rtp_buffer_get_extension_data), (gst_rtp_buffer_get_payload_subbuffer), (gst_rtp_buffer_get_payload_len), (gst_rtp_buffer_get_payload), (gst_rtp_buffer_ext_timestamp): * gst-libs/gst/rtp/gstrtpbuffer.h: Fix some more docs. Implement handling of packets with extensions. Fix padding check in _validate(). Added function to get extension data. API: gst_rtp_buffer_get_header_len() API: gst_rtp_buffer_get_extension_data()
228 lines
8.9 KiB
C
228 lines
8.9 KiB
C
/* GStreamer
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* Copyright (C) <2005> Philippe Khalaf <burger@speedy.org>
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* <2005> Wim Taymans <wim@fluendo.com>
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*
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* gstrtpbuffer.h: various helper functions to manipulate buffers
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* with RTP payload.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_RTPBUFFER_H__
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#define __GST_RTPBUFFER_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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/**
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* GST_RTP_VERSION:
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*
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* The supported RTP version 2.
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*/
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#define GST_RTP_VERSION 2
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/**
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* GstRTPPayload:
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* @GST_RTP_PAYLOAD_PCMU: ITU-T G.711. mu-law audio (RFC 3551)
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* @GST_RTP_PAYLOAD_1016: RFC 3551 says reserved
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* @GST_RTP_PAYLOAD_G721: RFC 3551 says reserved
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* @GST_RTP_PAYLOAD_GSM: GSM audio
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* @GST_RTP_PAYLOAD_G723: ITU G.723.1 audio
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* @GST_RTP_PAYLOAD_DVI4_8000: IMA ADPCM wave type (RFC 3551)
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* @GST_RTP_PAYLOAD_DVI4_16000: IMA ADPCM wave type (RFC 3551)
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* @GST_RTP_PAYLOAD_LPC: experimental linear predictive encoding
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* @GST_RTP_PAYLOAD_PCMA: ITU-T G.711 A-law audio (RFC 3551)
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* @GST_RTP_PAYLOAD_G722: ITU-T G.722 (RFC 3551)
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* @GST_RTP_PAYLOAD_L16_STEREO: stereo PCM
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* @GST_RTP_PAYLOAD_L16_MONO: mono PCM
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* @GST_RTP_PAYLOAD_QCELP: EIA & TIA standard IS-733
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* @GST_RTP_PAYLOAD_CN: Comfort Noise (RFC 3389)
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* @GST_RTP_PAYLOAD_MPA: Audio MPEG 1-3.
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* @GST_RTP_PAYLOAD_G728: ITU-T G.728 Speech coder (RFC 3551)
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* @GST_RTP_PAYLOAD_DVI4_11025: IMA ADPCM wave type (RFC 3551)
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* @GST_RTP_PAYLOAD_DVI4_22050: IMA ADPCM wave type (RFC 3551)
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* @GST_RTP_PAYLOAD_G729: ITU-T G.729 Speech coder (RFC 3551)
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* @GST_RTP_PAYLOAD_CELLB: See RFC 2029
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* @GST_RTP_PAYLOAD_JPEG: ISO Standards 10918-1 and 10918-2 (RFC 2435)
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* @GST_RTP_PAYLOAD_NV: nv encoding by Ron Frederick
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* @GST_RTP_PAYLOAD_H261: ITU-T Recommendation H.261 (RFC 2032)
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* @GST_RTP_PAYLOAD_MPV: Video MPEG 1 & 2 (RFC 2250)
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* @GST_RTP_PAYLOAD_MP2T: MPEG-2 transport stream (RFC 2250)
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* @GST_RTP_PAYLOAD_H263: Video H263 (RFC 2190)
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*
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*
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* Standard predefined fixed payload types.
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*
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* The official list is at:
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* http://www.iana.org/assignments/rtp-parameters
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*
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* Audio:
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* reserved: 19
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* unassigned: 20-23,
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*
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* Video:
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* unassigned: 24, 27, 29, 30, 35-71, 77-95
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* Reserved for RTCP conflict avoidance: 72-76
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*/
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typedef enum
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{
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/* Audio: */
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GST_RTP_PAYLOAD_PCMU = 0,
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GST_RTP_PAYLOAD_1016 = 1, /* RFC 3551 says reserved */
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GST_RTP_PAYLOAD_G721 = 2, /* RFC 3551 says reserved */
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GST_RTP_PAYLOAD_GSM = 3,
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GST_RTP_PAYLOAD_G723 = 4,
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GST_RTP_PAYLOAD_DVI4_8000 = 5,
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GST_RTP_PAYLOAD_DVI4_16000 = 6,
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GST_RTP_PAYLOAD_LPC = 7,
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GST_RTP_PAYLOAD_PCMA = 8,
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GST_RTP_PAYLOAD_G722 = 9,
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GST_RTP_PAYLOAD_L16_STEREO = 10,
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GST_RTP_PAYLOAD_L16_MONO = 11,
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GST_RTP_PAYLOAD_QCELP = 12,
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GST_RTP_PAYLOAD_CN = 13,
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GST_RTP_PAYLOAD_MPA = 14,
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GST_RTP_PAYLOAD_G728 = 15,
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GST_RTP_PAYLOAD_DVI4_11025 = 16,
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GST_RTP_PAYLOAD_DVI4_22050 = 17,
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GST_RTP_PAYLOAD_G729 = 18,
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/* Video: */
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GST_RTP_PAYLOAD_CELLB = 25,
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GST_RTP_PAYLOAD_JPEG = 26,
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GST_RTP_PAYLOAD_NV = 28,
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GST_RTP_PAYLOAD_H261 = 31,
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GST_RTP_PAYLOAD_MPV = 32,
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GST_RTP_PAYLOAD_MP2T = 33,
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GST_RTP_PAYLOAD_H263 = 34,
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/* BOTH */
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} GstRTPPayload;
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/* backward compatibility */
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#define GST_RTP_PAYLOAD_G723_63 16
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#define GST_RTP_PAYLOAD_G723_53 17
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#define GST_RTP_PAYLOAD_TS48 18
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#define GST_RTP_PAYLOAD_TS41 19
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#define GST_RTP_PAYLOAD_G723_63_STRING "16"
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#define GST_RTP_PAYLOAD_G723_53_STRING "17"
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#define GST_RTP_PAYLOAD_TS48_STRING "18"
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#define GST_RTP_PAYLOAD_TS41_STRING "19"
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/* Defining the above as strings, to make the declaration of pad_templates
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* easier. So if please keep these synchronized with the above.
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*/
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#define GST_RTP_PAYLOAD_PCMU_STRING "0"
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#define GST_RTP_PAYLOAD_1016_STRING "1"
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#define GST_RTP_PAYLOAD_G721_STRING "2"
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#define GST_RTP_PAYLOAD_GSM_STRING "3"
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#define GST_RTP_PAYLOAD_G723_STRING "4"
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#define GST_RTP_PAYLOAD_DVI4_8000_STRING "5"
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#define GST_RTP_PAYLOAD_DVI4_16000_STRING "6"
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#define GST_RTP_PAYLOAD_LPC_STRING "7"
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#define GST_RTP_PAYLOAD_PCMA_STRING "8"
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#define GST_RTP_PAYLOAD_G722_STRING "9"
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#define GST_RTP_PAYLOAD_L16_STEREO_STRING "10"
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#define GST_RTP_PAYLOAD_L16_MONO_STRING "11"
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#define GST_RTP_PAYLOAD_QCELP_STRING "12"
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#define GST_RTP_PAYLOAD_CN_STRING "13"
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#define GST_RTP_PAYLOAD_MPA_STRING "14"
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#define GST_RTP_PAYLOAD_G728_STRING "15"
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#define GST_RTP_PAYLOAD_DVI4_11025_STRING "16"
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#define GST_RTP_PAYLOAD_DVI4_22050_STRING "17"
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#define GST_RTP_PAYLOAD_G729_STRING "18"
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#define GST_RTP_PAYLOAD_CELLB_STRING "25"
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#define GST_RTP_PAYLOAD_JPEG_STRING "26"
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#define GST_RTP_PAYLOAD_NV_STRING "28"
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#define GST_RTP_PAYLOAD_H261_STRING "31"
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#define GST_RTP_PAYLOAD_MPV_STRING "32"
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#define GST_RTP_PAYLOAD_MP2T_STRING "33"
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#define GST_RTP_PAYLOAD_H263_STRING "34"
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#define GST_RTP_PAYLOAD_DYNAMIC_STRING "[96, 127]"
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/* creating buffers */
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void gst_rtp_buffer_allocate_data (GstBuffer *buffer, guint payload_len,
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guint8 pad_len, guint8 csrc_count);
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GstBuffer* gst_rtp_buffer_new_take_data (gpointer data, guint len);
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GstBuffer* gst_rtp_buffer_new_copy_data (gpointer data, guint len);
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GstBuffer* gst_rtp_buffer_new_allocate (guint payload_len, guint8 pad_len, guint8 csrc_count);
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GstBuffer* gst_rtp_buffer_new_allocate_len (guint packet_len, guint8 pad_len, guint8 csrc_count);
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guint gst_rtp_buffer_calc_header_len (guint8 csrc_count);
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guint gst_rtp_buffer_calc_packet_len (guint payload_len, guint8 pad_len, guint8 csrc_count);
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guint gst_rtp_buffer_calc_payload_len (guint packet_len, guint8 pad_len, guint8 csrc_count);
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gboolean gst_rtp_buffer_validate_data (guint8 *data, guint len);
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gboolean gst_rtp_buffer_validate (GstBuffer *buffer);
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void gst_rtp_buffer_set_packet_len (GstBuffer *buffer, guint len);
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guint gst_rtp_buffer_get_packet_len (GstBuffer *buffer);
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guint gst_rtp_buffer_get_header_len (GstBuffer *buffer);
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guint8 gst_rtp_buffer_get_version (GstBuffer *buffer);
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void gst_rtp_buffer_set_version (GstBuffer *buffer, guint8 version);
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gboolean gst_rtp_buffer_get_padding (GstBuffer *buffer);
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void gst_rtp_buffer_set_padding (GstBuffer *buffer, gboolean padding);
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void gst_rtp_buffer_pad_to (GstBuffer *buffer, guint len);
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gboolean gst_rtp_buffer_get_extension (GstBuffer *buffer);
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void gst_rtp_buffer_set_extension (GstBuffer *buffer, gboolean extension);
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gboolean gst_rtp_buffer_get_extension_data (GstBuffer *buffer, guint16 *bits,
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gpointer *data, guint *wordlen);
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guint32 gst_rtp_buffer_get_ssrc (GstBuffer *buffer);
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void gst_rtp_buffer_set_ssrc (GstBuffer *buffer, guint32 ssrc);
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guint8 gst_rtp_buffer_get_csrc_count (GstBuffer *buffer);
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guint32 gst_rtp_buffer_get_csrc (GstBuffer *buffer, guint8 idx);
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void gst_rtp_buffer_set_csrc (GstBuffer *buffer, guint8 idx, guint32 csrc);
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gboolean gst_rtp_buffer_get_marker (GstBuffer *buffer);
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void gst_rtp_buffer_set_marker (GstBuffer *buffer, gboolean marker);
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guint8 gst_rtp_buffer_get_payload_type (GstBuffer *buffer);
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void gst_rtp_buffer_set_payload_type (GstBuffer *buffer, guint8 payload_type);
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guint16 gst_rtp_buffer_get_seq (GstBuffer *buffer);
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void gst_rtp_buffer_set_seq (GstBuffer *buffer, guint16 seq);
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guint32 gst_rtp_buffer_get_timestamp (GstBuffer *buffer);
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void gst_rtp_buffer_set_timestamp (GstBuffer *buffer, guint32 timestamp);
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GstBuffer* gst_rtp_buffer_get_payload_buffer (GstBuffer *buffer);
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GstBuffer* gst_rtp_buffer_get_payload_subbuffer (GstBuffer *buffer, guint offset, guint len);
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guint gst_rtp_buffer_get_payload_len (GstBuffer *buffer);
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gpointer gst_rtp_buffer_get_payload (GstBuffer *buffer);
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/* some helpers */
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guint32 gst_rtp_buffer_default_clock_rate (guint8 payload_type);
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gint gst_rtp_buffer_compare_seqnum (guint16 seqnum1, guint16 seqnum2);
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guint64 gst_rtp_buffer_ext_timestamp (guint64 *exttimestamp, guint32 timestamp);
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G_END_DECLS
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#endif /* __GST_RTPBUFFER_H__ */
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