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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_CAST_NET_RTP_RTP_DEFINES_H_
#define MEDIA_CAST_NET_RTP_RTP_DEFINES_H_
#include <stdint.h>
#include "media/cast/net/rtcp/rtcp_defines.h"
namespace media {
namespace cast {
static const uint16_t kRtpHeaderLength = 12;
static const uint16_t kCastHeaderLength = 7;
// RTP Header
static const uint8_t kRtpExtensionBitMask = 0x10;
static const uint8_t kRtpMarkerBitMask = 0x80;
static const uint8_t kRtpNumCsrcsMask = 0x0f;
// Cast Header
static const uint8_t kCastKeyFrameBitMask = 0x80;
static const uint8_t kCastReferenceFrameIdBitMask = 0x40;
static const uint8_t kCastExtensionCountmask = 0x3f;
// Cast RTP extensions.
static const uint8_t kCastRtpExtensionAdaptiveLatency = 1;
struct RtpCastHeader {
RtpCastHeader();
// Elements from RTP packet header.
bool marker;
uint8_t payload_type;
uint16_t sequence_number;
RtpTimeTicks rtp_timestamp;
uint32_t sender_ssrc;
uint8_t num_csrcs;
// Elements from Cast header (at beginning of RTP payload).
bool is_key_frame;
bool is_reference;
FrameId frame_id;
uint16_t packet_id;
uint16_t max_packet_id;
FrameId reference_frame_id;
uint16_t new_playout_delay_ms;
uint8_t num_extensions;
};
class RtpPayloadFeedback {
public:
virtual void CastFeedback(const RtcpCastMessage& cast_feedback) = 0;
protected:
virtual ~RtpPayloadFeedback();
};
} // namespace cast
} // namespace media
#endif // MEDIA_CAST_NET_RTP_RTP_DEFINES_H_
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