c62f6c7121
This is needed in the general case, now that we aim to support codecs other than those built-in to WebRTC. BUG=webrtc:8159 Change-Id: I40a41252bf69ad5d4d0208e3c1e8918da7394706 Reviewed-on: https://webrtc-review.googlesource.com/5380 Commit-Queue: Karl Wiberg <kwiberg@webrtc.org> Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/master@{#20136}
131 lines
4.5 KiB
C++
131 lines
4.5 KiB
C++
/*
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* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_RTP_RTCP_INCLUDE_RTP_PAYLOAD_REGISTRY_H_
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#define MODULES_RTP_RTCP_INCLUDE_RTP_PAYLOAD_REGISTRY_H_
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#include <map>
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#include <set>
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#include "api/audio_codecs/audio_format.h"
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#include "api/optional.h"
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#include "modules/rtp_rtcp/source/rtp_utility.h"
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#include "rtc_base/criticalsection.h"
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namespace webrtc {
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class VideoCodec;
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class RTPPayloadRegistry {
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public:
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RTPPayloadRegistry();
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~RTPPayloadRegistry();
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// TODO(magjed): Split RTPPayloadRegistry into separate Audio and Video class
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// and simplify the code. http://crbug/webrtc/6743.
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// Replace all audio receive payload types with the given map.
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void SetAudioReceivePayloads(std::map<int, SdpAudioFormat> codecs);
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int32_t RegisterReceivePayload(int payload_type,
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const SdpAudioFormat& audio_format,
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bool* created_new_payload_type);
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int32_t RegisterReceivePayload(const VideoCodec& video_codec);
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int32_t DeRegisterReceivePayload(int8_t payload_type);
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int32_t ReceivePayloadType(const SdpAudioFormat& audio_format,
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int8_t* payload_type) const;
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int32_t ReceivePayloadType(const VideoCodec& video_codec,
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int8_t* payload_type) const;
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bool RtxEnabled() const;
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void SetRtxSsrc(uint32_t ssrc);
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bool GetRtxSsrc(uint32_t* ssrc) const;
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void SetRtxPayloadType(int payload_type, int associated_payload_type);
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bool IsRed(const RTPHeader& header) const;
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int GetPayloadTypeFrequency(uint8_t payload_type) const;
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rtc::Optional<RtpUtility::Payload> PayloadTypeToPayload(
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uint8_t payload_type) const;
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void ResetLastReceivedPayloadTypes() {
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rtc::CritScope cs(&crit_sect_);
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last_received_payload_type_ = -1;
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last_received_media_payload_type_ = -1;
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}
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// This sets the payload type of the packets being received from the network
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// on the media SSRC. For instance if packets are encapsulated with RED, this
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// payload type will be the RED payload type.
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void SetIncomingPayloadType(const RTPHeader& header);
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// Returns true if the new media payload type has not changed.
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bool ReportMediaPayloadType(uint8_t media_payload_type);
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int8_t red_payload_type() const { return GetPayloadTypeWithName("red"); }
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int8_t ulpfec_payload_type() const {
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return GetPayloadTypeWithName("ulpfec");
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}
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int8_t last_received_payload_type() const {
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rtc::CritScope cs(&crit_sect_);
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return last_received_payload_type_;
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}
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void set_last_received_payload_type(int8_t last_received_payload_type) {
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rtc::CritScope cs(&crit_sect_);
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last_received_payload_type_ = last_received_payload_type;
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}
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int8_t last_received_media_payload_type() const {
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rtc::CritScope cs(&crit_sect_);
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return last_received_media_payload_type_;
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}
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private:
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// Prunes the payload type map of the specific payload type, if it exists.
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void DeregisterAudioCodecOrRedTypeRegardlessOfPayloadType(
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const SdpAudioFormat& audio_format);
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bool IsRtxInternal(const RTPHeader& header) const;
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// Returns the payload type for the payload with name |payload_name|, or -1 if
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// no such payload is registered.
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int8_t GetPayloadTypeWithName(const char* payload_name) const;
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rtc::CriticalSection crit_sect_;
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std::map<int, RtpUtility::Payload> payload_type_map_;
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int8_t incoming_payload_type_;
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int8_t last_received_payload_type_;
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int8_t last_received_media_payload_type_;
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bool rtx_;
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// Mapping rtx_payload_type_map_[rtx] = associated.
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std::map<int, int> rtx_payload_type_map_;
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uint32_t ssrc_rtx_;
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// Only warn once per payload type, if an RTX packet is received but
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// no associated payload type found in |rtx_payload_type_map_|.
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std::set<int> payload_types_with_suppressed_warnings_
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RTC_GUARDED_BY(crit_sect_);
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// As a first step in splitting this class up in separate cases for audio and
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// video, DCHECK that no instance is used for both audio and video.
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#if RTC_DCHECK_IS_ON
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bool used_for_audio_ RTC_GUARDED_BY(crit_sect_) = false;
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bool used_for_video_ RTC_GUARDED_BY(crit_sect_) = false;
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#endif
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};
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} // namespace webrtc
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#endif // MODULES_RTP_RTCP_INCLUDE_RTP_PAYLOAD_REGISTRY_H_
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