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/*
* libjingle
* Copyright 2012 Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef TALK_MEDIA_BASE_CONSTANTS_H_
#define TALK_MEDIA_BASE_CONSTANTS_H_
#include <string>
// This file contains constants related to media.
namespace cricket {
extern const int kVideoCodecClockrate;
extern const int kDataCodecClockrate;
extern const int kDataMaxBandwidth; // bps
// Default CPU thresholds.
extern const float kHighSystemCpuThreshold;
extern const float kLowSystemCpuThreshold;
extern const float kProcessCpuThreshold;
extern const char kRtxCodecName[];
extern const char kRedCodecName[];
extern const char kUlpfecCodecName[];
// Codec parameters
extern const int kWildcardPayloadType;
extern const char kCodecParamAssociatedPayloadType[];
extern const char kOpusCodecName[];
// Attribute parameters
extern const char kCodecParamPTime[];
extern const char kCodecParamMaxPTime[];
// fmtp parameters
extern const char kCodecParamMinPTime[];
extern const char kCodecParamSPropStereo[];
extern const char kCodecParamStereo[];
extern const char kCodecParamUseInbandFec[];
extern const char kCodecParamMaxAverageBitrate[];
extern const char kCodecParamSctpProtocol[];
extern const char kCodecParamSctpStreams[];
extern const char kParamValueTrue[];
// Parameters are stored as parameter/value pairs. For parameters who do not
// have a value, |kParamValueEmpty| should be used as value.
extern const char kParamValueEmpty[];
// opus parameters.
// Default value for maxptime according to
// http://tools.ietf.org/html/draft-spittka-payload-rtp-opus-03
extern const int kOpusDefaultMaxPTime;
extern const int kOpusDefaultPTime;
extern const int kOpusDefaultMinPTime;
extern const int kOpusDefaultSPropStereo;
extern const int kOpusDefaultStereo;
extern const int kOpusDefaultUseInbandFec;
// Prefered values in this code base. Note that they may differ from the default
// values in http://tools.ietf.org/html/draft-spittka-payload-rtp-opus-03
// Only frames larger or equal to 10 ms are currently supported in this code
// base.
extern const int kPreferredMaxPTime;
extern const int kPreferredMinPTime;
extern const int kPreferredSPropStereo;
extern const int kPreferredStereo;
extern const int kPreferredUseInbandFec;
// rtcp-fb messages according to RFC 4585
extern const char kRtcpFbParamNack[];
extern const char kRtcpFbNackParamPli[];
// rtcp-fb messages according to
// http://tools.ietf.org/html/draft-alvestrand-rmcat-remb-00
extern const char kRtcpFbParamRemb[];
// ccm submessages according to RFC 5104
extern const char kRtcpFbParamCcm[];
extern const char kRtcpFbCcmParamFir[];
// Google specific parameters
extern const char kCodecParamMaxBitrate[];
extern const char kCodecParamMinBitrate[];
extern const char kCodecParamStartBitrate[];
extern const char kCodecParamMaxQuantization[];
extern const char kCodecParamPort[];
// We put the data codec names here so callers of
// DataEngine::CreateChannel don't have to import rtpdataengine.h or
// sctpdataengine.h to get the codec names they want to pass in.
extern const int kGoogleRtpDataCodecId;
extern const char kGoogleRtpDataCodecName[];
// TODO(pthatcher): Find an id that won't conflict with anything. On
// the other hand, it really shouldn't matter since the id won't be
// used on the wire.
extern const int kGoogleSctpDataCodecId;
extern const char kGoogleSctpDataCodecName[];
extern const char kComfortNoiseCodecName[];
// Extension header for audio levels, as defined in
// http://tools.ietf.org/html/draft-ietf-avtext-client-to-mixer-audio-level-03
extern const int kRtpAudioLevelHeaderExtensionDefaultId;
extern const char kRtpAudioLevelHeaderExtension[];
// Extension header for RTP timestamp offset, see RFC 5450 for details:
// http://tools.ietf.org/html/rfc5450
extern const int kRtpTimestampOffsetHeaderExtensionDefaultId;
extern const char kRtpTimestampOffsetHeaderExtension[];
// Extension header for absolute send time, see url for details:
// http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time
extern const int kRtpAbsoluteSenderTimeHeaderExtensionDefaultId;
extern const char kRtpAbsoluteSenderTimeHeaderExtension[];
extern const int kNumDefaultUnsignalledVideoRecvStreams;
} // namespace cricket
#endif // TALK_MEDIA_BASE_CONSTANTS_H_
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