gst-libs/gst/rtp/gstrtppayloads.h - imx-gst-plugins-base - Git at Google

 /* GStreamer
  * Copyright (C) <2007> Wim Taymans <wim.taymans@gmail.com>
  *
  * gstrtppayloads.h: various helper functions to deal with RTP payload
  *     types.
  *
  * 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., 51 Franklin St, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */

 #ifndef __GST_RTPPAYLOADS_H__
 #define __GST_RTPPAYLOADS_H__

 #include <gst/gst.h>
 #include <gst/rtp/rtp-prelude.h>

 G_BEGIN_DECLS

 /**
  * 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]"

 /**
  * GST_RTP_PAYLOAD_IS_DYNAMIC:
  * @pt: a payload type
  *
  * Check if @pt is a dynamic payload type.
  */
 #define GST_RTP_PAYLOAD_IS_DYNAMIC(pt) ((pt) >= 96 && (pt) <= 127)

 typedef struct _GstRTPPayloadInfo GstRTPPayloadInfo;

 /**
  * GstRTPPayloadInfo:
  * @payload_type: payload type, -1 means dynamic
  * @media: the media type(s), usually "audio", "video", "application", "text",
  * "message".
  * @encoding_name: the encoding name of @pt
  * @clock_rate: default clock rate, 0 = unknown/variable
  * @encoding_parameters: encoding parameters. For audio this is the number of
  * channels. NULL = not applicable.
  * @bitrate: the bitrate of the media. 0 = unknown/variable.
  *
  * Structure holding default payload type information.
  */
 struct _GstRTPPayloadInfo
 {
   guint8       payload_type;
   const gchar *media;
   const gchar *encoding_name;
   guint        clock_rate;
   const gchar *encoding_parameters;
   guint        bitrate;

   /*< private >*/
   gpointer _gst_reserved[GST_PADDING];
 };

 GST_RTP_API
 const GstRTPPayloadInfo *  gst_rtp_payload_info_for_pt     (guint8 payload_type);

 GST_RTP_API
 const GstRTPPayloadInfo *  gst_rtp_payload_info_for_name   (const gchar *media, const gchar *encoding_name);

 G_END_DECLS

 #endif /* __GST_RTPPAYLOADS_H__ */
	/* GStreamer
	* Copyright (C) <2007> Wim Taymans <wim.taymans@gmail.com>
	*
	* gstrtppayloads.h: various helper functions to deal with RTP payload
	* types.
	*
	* 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., 51 Franklin St, Fifth Floor,
	* Boston, MA 02110-1301, USA.
	*/

	#ifndef __GST_RTPPAYLOADS_H__
	#define __GST_RTPPAYLOADS_H__

	#include <gst/gst.h>
	#include <gst/rtp/rtp-prelude.h>

	G_BEGIN_DECLS

	/**
	* 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]"

	/**
	* GST_RTP_PAYLOAD_IS_DYNAMIC:
	* @pt: a payload type
	*
	* Check if @pt is a dynamic payload type.
	*/
	#define GST_RTP_PAYLOAD_IS_DYNAMIC(pt) ((pt) >= 96 && (pt) <= 127)

	typedef struct _GstRTPPayloadInfo GstRTPPayloadInfo;

	/**
	* GstRTPPayloadInfo:
	* @payload_type: payload type, -1 means dynamic
	* @media: the media type(s), usually "audio", "video", "application", "text",
	* "message".
	* @encoding_name: the encoding name of @pt
	* @clock_rate: default clock rate, 0 = unknown/variable
	* @encoding_parameters: encoding parameters. For audio this is the number of
	* channels. NULL = not applicable.
	* @bitrate: the bitrate of the media. 0 = unknown/variable.
	*
	* Structure holding default payload type information.
	*/
	struct _GstRTPPayloadInfo
	{
	guint8 payload_type;
	const gchar *media;
	const gchar *encoding_name;
	guint clock_rate;
	const gchar *encoding_parameters;
	guint bitrate;

	/< private >/
	gpointer _gst_reserved[GST_PADDING];
	};

	GST_RTP_API
	const GstRTPPayloadInfo * gst_rtp_payload_info_for_pt (guint8 payload_type);

	GST_RTP_API
	const GstRTPPayloadInfo * gst_rtp_payload_info_for_name (const gchar media, const gchar encoding_name);

	G_END_DECLS

	#endif /* __GST_RTPPAYLOADS_H__ */