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195 lines
6.3 KiB
C
195 lines
6.3 KiB
C
/* GStreamer
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* Copyright (C) <2007> Wim Taymans <wim.taymans@gmail.com>
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*
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* gstrtppayloads.h: various helper functions to deal with RTP payload
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* types.
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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_RTPPAYLOADS_H__
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#define __GST_RTPPAYLOADS_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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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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/**
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* GST_RTP_PAYLOAD_IS_DYNAMIC:
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* @pt: a payload type
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*
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* Check if @pt is a dynamic payload type.
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*/
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#define GST_RTP_PAYLOAD_IS_DYNAMIC(pt) ((pt) >= 96 && (pt) <= 127)
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typedef struct _GstRTPPayloadInfo GstRTPPayloadInfo;
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/**
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* GstRTPPayloadInfo:
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* @payload_type: payload type, -1 means dynamic
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* @media: the media type(s), usually "audio", "video", "application", "text",
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* "message".
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* @encoding_name: the encoding name of @pt
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* @clock_rate: default clock rate, 0 = unknown/variable
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* @encoding_parameters: encoding parameters. For audio this is the number of
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* channels. NULL = not applicable.
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* @bitrate: the bitrate of the media. 0 = unknown/variable.
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*
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* Structure holding default payload type information.
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*/
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struct _GstRTPPayloadInfo
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{
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guint8 payload_type;
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const gchar *media;
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const gchar *encoding_name;
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guint clock_rate;
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const gchar *encoding_parameters;
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guint bitrate;
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gpointer _gst_reserved[GST_PADDING];
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};
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const GstRTPPayloadInfo * gst_rtp_payload_info_for_pt (guint8 payload_type);
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const GstRTPPayloadInfo * gst_rtp_payload_info_for_name (const gchar *media, const gchar *encoding_name);
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G_END_DECLS
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#endif /* __GST_RTPPAYLOADS_H__ */
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