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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.
*/
#ifndef MEDIA_SENDER_H_
#define MEDIA_SENDER_H_
#include "rtp/RTPSender.h"
#include <media/stagefright/foundation/ABase.h>
#include <media/stagefright/foundation/AHandler.h>
#include <utils/Errors.h>
#include <utils/Vector.h>
namespace android {
struct ABuffer;
struct ANetworkSession;
struct AMessage;
struct IHDCP;
struct TSPacketizer;
// This class facilitates sending of data from one or more media tracks
// through one or more RTP channels, either providing a 1:1 mapping from
// track to RTP channel or muxing all tracks into a single RTP channel and
// using transport stream encapsulation.
// Optionally the (video) data is encrypted using the provided hdcp object.
struct MediaSender : public AHandler {
enum {
kWhatInitDone,
kWhatError,
kWhatNetworkStall,
kWhatInformSender,
};
MediaSender(
const sp<ANetworkSession> &netSession,
const sp<AMessage> ¬ify);
status_t setHDCP(const sp<IHDCP> &hdcp);
enum FlagBits {
FLAG_MANUALLY_PREPEND_SPS_PPS = 1,
};
ssize_t addTrack(const sp<AMessage> &format, uint32_t flags);
// If trackIndex == -1, initialize for transport stream muxing.
status_t initAsync(
ssize_t trackIndex,
const char *remoteHost,
int32_t remoteRTPPort,
RTPSender::TransportMode rtpMode,
int32_t remoteRTCPPort,
RTPSender::TransportMode rtcpMode,
int32_t *localRTPPort);
status_t queueAccessUnit(
size_t trackIndex, const sp<ABuffer> &accessUnit);
protected:
virtual void onMessageReceived(const sp<AMessage> &msg);
virtual ~MediaSender();
private:
enum {
kWhatSenderNotify,
};
enum Mode {
MODE_UNDEFINED,
MODE_TRANSPORT_STREAM,
MODE_ELEMENTARY_STREAMS,
};
struct TrackInfo {
sp<AMessage> mFormat;
uint32_t mFlags;
sp<RTPSender> mSender;
List<sp<ABuffer> > mAccessUnits;
ssize_t mPacketizerTrackIndex;
bool mIsAudio;
};
sp<ANetworkSession> mNetSession;
sp<AMessage> mNotify;
sp<IHDCP> mHDCP;
Mode mMode;
int32_t mGeneration;
Vector<TrackInfo> mTrackInfos;
sp<TSPacketizer> mTSPacketizer;
sp<RTPSender> mTSSender;
int64_t mPrevTimeUs;
size_t mInitDoneCount;
FILE *mLogFile;
void onSenderNotify(const sp<AMessage> &msg);
void notifyInitDone(status_t err);
void notifyError(status_t err);
void notifyNetworkStall(size_t numBytesQueued);
status_t packetizeAccessUnit(
size_t trackIndex,
sp<ABuffer> accessUnit,
sp<ABuffer> *tsPackets);
DISALLOW_EVIL_CONSTRUCTORS(MediaSender);
};
} // namespace android
#endif // MEDIA_SENDER_H_
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