/* GStreamer * Copyright (C) <2005> Philippe Khalaf * <2005> Wim Taymans * * 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 G_BEGIN_DECLS /** * GST_RTP_VERSION: * * The supported RTP version 2. */ #define GST_RTP_VERSION 2 /** * GstRTPPayload: * @GST_RTP_PAYLOAD_PCMU: ITU-T G.711. mu-law audio (RFC 3551) * @GST_RTP_PAYLOAD_1016: RFC 3551 says reserved * @GST_RTP_PAYLOAD_G721: RFC 3551 says reserved * @GST_RTP_PAYLOAD_GSM: GSM audio * @GST_RTP_PAYLOAD_G723: ITU G.723.1 audio * @GST_RTP_PAYLOAD_DVI4_8000: IMA ADPCM wave type (RFC 3551) * @GST_RTP_PAYLOAD_DVI4_16000: IMA ADPCM wave type (RFC 3551) * @GST_RTP_PAYLOAD_LPC: experimental linear predictive encoding * @GST_RTP_PAYLOAD_PCMA: ITU-T G.711 A-law audio (RFC 3551) * @GST_RTP_PAYLOAD_G722: ITU-T G.722 (RFC 3551) * @GST_RTP_PAYLOAD_L16_STEREO: stereo PCM * @GST_RTP_PAYLOAD_L16_MONO: mono PCM * @GST_RTP_PAYLOAD_QCELP: EIA & TIA standard IS-733 * @GST_RTP_PAYLOAD_CN: Comfort Noise (RFC 3389) * @GST_RTP_PAYLOAD_MPA: Audio MPEG 1-3. * @GST_RTP_PAYLOAD_G728: ITU-T G.728 Speech coder (RFC 3551) * @GST_RTP_PAYLOAD_DVI4_11025: IMA ADPCM wave type (RFC 3551) * @GST_RTP_PAYLOAD_DVI4_22050: IMA ADPCM wave type (RFC 3551) * @GST_RTP_PAYLOAD_G729: ITU-T G.729 Speech coder (RFC 3551) * @GST_RTP_PAYLOAD_CELLB: See RFC 2029 * @GST_RTP_PAYLOAD_JPEG: ISO Standards 10918-1 and 10918-2 (RFC 2435) * @GST_RTP_PAYLOAD_NV: nv encoding by Ron Frederick * @GST_RTP_PAYLOAD_H261: ITU-T Recommendation H.261 (RFC 2032) * @GST_RTP_PAYLOAD_MPV: Video MPEG 1 & 2 (RFC 2250) * @GST_RTP_PAYLOAD_MP2T: MPEG-2 transport stream (RFC 2250) * @GST_RTP_PAYLOAD_H263: Video H263 (RFC 2190) * * * Standard predefined fixed payload types. * * The official list is at: * http://www.iana.org/assignments/rtp-parameters * * Audio: * reserved: 19 * unassigned: 20-23, * * Video: * unassigned: 24, 27, 29, 30, 35-71, 77-95 * Reserved for RTCP conflict avoidance: 72-76 */ typedef enum { /* Audio: */ GST_RTP_PAYLOAD_PCMU = 0, GST_RTP_PAYLOAD_1016 = 1, /* RFC 3551 says reserved */ GST_RTP_PAYLOAD_G721 = 2, /* RFC 3551 says reserved */ GST_RTP_PAYLOAD_GSM = 3, GST_RTP_PAYLOAD_G723 = 4, GST_RTP_PAYLOAD_DVI4_8000 = 5, GST_RTP_PAYLOAD_DVI4_16000 = 6, GST_RTP_PAYLOAD_LPC = 7, GST_RTP_PAYLOAD_PCMA = 8, GST_RTP_PAYLOAD_G722 = 9, GST_RTP_PAYLOAD_L16_STEREO = 10, GST_RTP_PAYLOAD_L16_MONO = 11, GST_RTP_PAYLOAD_QCELP = 12, GST_RTP_PAYLOAD_CN = 13, GST_RTP_PAYLOAD_MPA = 14, GST_RTP_PAYLOAD_G728 = 15, GST_RTP_PAYLOAD_DVI4_11025 = 16, GST_RTP_PAYLOAD_DVI4_22050 = 17, GST_RTP_PAYLOAD_G729 = 18, /* Video: */ GST_RTP_PAYLOAD_CELLB = 25, GST_RTP_PAYLOAD_JPEG = 26, GST_RTP_PAYLOAD_NV = 28, GST_RTP_PAYLOAD_H261 = 31, GST_RTP_PAYLOAD_MPV = 32, GST_RTP_PAYLOAD_MP2T = 33, GST_RTP_PAYLOAD_H263 = 34, /* BOTH */ } GstRTPPayload; /* backward compatibility */ #define GST_RTP_PAYLOAD_G723_63 16 #define GST_RTP_PAYLOAD_G723_53 17 #define GST_RTP_PAYLOAD_TS48 18 #define GST_RTP_PAYLOAD_TS41 19 #define GST_RTP_PAYLOAD_G723_63_STRING "16" #define GST_RTP_PAYLOAD_G723_53_STRING "17" #define GST_RTP_PAYLOAD_TS48_STRING "18" #define GST_RTP_PAYLOAD_TS41_STRING "19" /* Defining the above as strings, to make the declaration of pad_templates * easier. So if please keep these synchronized with the above. */ #define GST_RTP_PAYLOAD_PCMU_STRING "0" #define GST_RTP_PAYLOAD_1016_STRING "1" #define GST_RTP_PAYLOAD_G721_STRING "2" #define GST_RTP_PAYLOAD_GSM_STRING "3" #define GST_RTP_PAYLOAD_G723_STRING "4" #define GST_RTP_PAYLOAD_DVI4_8000_STRING "5" #define GST_RTP_PAYLOAD_DVI4_16000_STRING "6" #define GST_RTP_PAYLOAD_LPC_STRING "7" #define GST_RTP_PAYLOAD_PCMA_STRING "8" #define GST_RTP_PAYLOAD_G722_STRING "9" #define GST_RTP_PAYLOAD_L16_STEREO_STRING "10" #define GST_RTP_PAYLOAD_L16_MONO_STRING "11" #define GST_RTP_PAYLOAD_QCELP_STRING "12" #define GST_RTP_PAYLOAD_CN_STRING "13" #define GST_RTP_PAYLOAD_MPA_STRING "14" #define GST_RTP_PAYLOAD_G728_STRING "15" #define GST_RTP_PAYLOAD_DVI4_11025_STRING "16" #define GST_RTP_PAYLOAD_DVI4_22050_STRING "17" #define GST_RTP_PAYLOAD_G729_STRING "18" #define GST_RTP_PAYLOAD_CELLB_STRING "25" #define GST_RTP_PAYLOAD_JPEG_STRING "26" #define GST_RTP_PAYLOAD_NV_STRING "28" #define GST_RTP_PAYLOAD_H261_STRING "31" #define GST_RTP_PAYLOAD_MPV_STRING "32" #define GST_RTP_PAYLOAD_MP2T_STRING "33" #define GST_RTP_PAYLOAD_H263_STRING "34" #define GST_RTP_PAYLOAD_DYNAMIC_STRING "[96, 127]" /* 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); 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); 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); guint32 gst_rtp_buffer_get_ssrc (GstBuffer *buffer); void gst_rtp_buffer_set_ssrc (GstBuffer *buffer, 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); void gst_rtp_buffer_set_payload_type (GstBuffer *buffer, guint8 payload_type); guint16 gst_rtp_buffer_get_seq (GstBuffer *buffer); void gst_rtp_buffer_set_seq (GstBuffer *buffer, guint16 seq); guint32 gst_rtp_buffer_get_timestamp (GstBuffer *buffer); void gst_rtp_buffer_set_timestamp (GstBuffer *buffer, 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); 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); G_END_DECLS #endif /* __GST_RTPBUFFER_H__ */