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363b790d38
We need different export decorators for the different libs. For now no actual change though, just rename before the release, and add prelude headers to define the new decorator to GST_EXPORT.
200 lines
6.4 KiB
C
200 lines
6.4 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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, 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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#include <gst/rtp/rtp-prelude.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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* 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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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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GST_RTP_API
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const GstRTPPayloadInfo * gst_rtp_payload_info_for_pt (guint8 payload_type);
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GST_RTP_API
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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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