/* 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., 59 Temple Place - Suite 330,

 * Boston, MA 02111-1307, USA.

 */

#ifndef __GST_RTPPAYLOADS_H__

#define __GST_RTPPAYLOADS_H__

#include <gst/gst.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;

};

#ifdef __SYMBIAN32__

IMPORT_C

#endif

const GstRTPPayloadInfo *  gst_rtp_payload_info_for_pt     (guint8 payload_type);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

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

G_END_DECLS

#endif /* __GST_RTPPAYLOADS_H__ */