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/*
* Copyright 2013, The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <media/stagefright/foundation/AHandler.h>
#include "ATSParser.h"
#include "rtp/RTPReceiver.h"
namespace android {
struct ABuffer;
struct ANetworkSession;
struct AMessage;
struct ATSParser;
// This class facilitates receiving of media data for one or more tracks
// over RTP. Either a 1:1 track to RTP channel mapping is used or a single
// RTP channel provides the data for a transport stream that is consequently
// demuxed and its track's data provided to the observer.
struct MediaReceiver : public AHandler {
enum {
kWhatInitDone,
kWhatError,
kWhatAccessUnit,
kWhatPacketLost,
};
MediaReceiver(
const sp<ANetworkSession> &netSession,
const sp<AMessage> ¬ify);
ssize_t addTrack(
RTPReceiver::TransportMode transportMode,
int32_t *localRTPPort);
status_t connectTrack(
size_t trackIndex,
const char *remoteHost,
int32_t remoteRTPPort,
int32_t remoteRTCPPort);
enum Mode {
MODE_UNDEFINED,
MODE_TRANSPORT_STREAM,
MODE_TRANSPORT_STREAM_RAW,
MODE_ELEMENTARY_STREAMS,
};
status_t initAsync(Mode mode);
status_t notifyLateness(size_t trackIndex, int64_t latenessUs);
protected:
virtual void onMessageReceived(const sp<AMessage> &msg);
virtual ~MediaReceiver();
private:
enum {
kWhatInit,
kWhatReceiverNotify,
};
struct TrackInfo {
sp<RTPReceiver> mReceiver;
};
sp<ANetworkSession> mNetSession;
sp<AMessage> mNotify;
Mode mMode;
int32_t mGeneration;
Vector<TrackInfo> mTrackInfos;
status_t mInitStatus;
size_t mInitDoneCount;
sp<ATSParser> mTSParser;
uint32_t mFormatKnownMask;
void onReceiverNotify(const sp<AMessage> &msg);
void drainPackets(size_t trackIndex, ATSParser::SourceType type);
void notifyInitDone(status_t err);
void notifyError(status_t err);
void notifyPacketLost();
void postAccessUnit(
size_t trackIndex,
const sp<ABuffer> &accessUnit,
const sp<AMessage> &format);
DISALLOW_EVIL_CONSTRUCTORS(MediaReceiver);
};
} // namespace android
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