medialibstagefrightwifi-displaysource
编码那一块
pizzaframeworksavmedialibstagefrightwifi-displaysourceConverter.h
// Utility class that receives media access units and converts them into
// media access unit of a different format.
// Right now this'll convert raw video into H.264 and raw audio into AAC.
struct Converter : public AHandler {
Converter(
const sp<AMessage> ¬ify,
const sp<ALooper> &codecLooper,
const sp<AMessage> &format,
bool usePCMAudio,
bool isRecordingScreen);bool mIsRecordingScreen;
pizzaframeworksavmedialibstagefrightwifi-displaysourceConverter.cpp
Converter::Converter(
const sp<AMessage> ¬ify,
const sp<ALooper> &codecLooper,
const sp<AMessage> &format,
bool usePCMAudio,
bool isRecordingScreen)
: mInitCheck(NO_INIT),
mNotify(notify),
mCodecLooper(codecLooper),
mInputFormat(format),
mIsVideo(false),
mIsPCMAudio(usePCMAudio),
mNeedToManuallyPrependSPSPPS(false),
mDoMoreWorkPending(false)
#if ENABLE_SILENCE_DETECTION
,mFirstSilentFrameUs(-1ll)
,mInSilentMode(false)
#endif
{
AString mime;
CHECK(mInputFormat->findString("mime", &mime));
mIsRecordingScreen = isRecordingScreen;
if (!strncasecmp("video/", mime.c_str(), 6)) {
mIsVideo = true;
}CHECK(!usePCMAudio || !mIsVideo);
mInitCheck = initEncoder();
if (mInitCheck != OK) {
if (mEncoder != NULL) {
mEncoder->release();
mEncoder.clear();
}
}
}void Converter::shutdownAsync() {
ALOGV("shutdown");
if(!mIsRecordingScreen)
{
(new AMessage(kWhatShutdown, id()))->post();
return;
}#if 1 //{
if (mEncoder != NULL) {
mEncoder->release();
mEncoder.clear();
}
#endif //}
}
pizzaframeworksavmedialibstagefrightwifi-displaysourceMediaPuller.cpp
这里是读取数据的源泉。
void MediaPuller::onMessageReceived(const sp<AMessage> &msg) {
switch (msg->what()) {
case kWhatStart:
{
status_t err;
if (mIsAudio) {
// This atrocity causes AudioSource to deliver absolute
// systemTime() based timestamps (off by 1 us).
sp<MetaData> params = new MetaData;
params->setInt64(kKeyTime, 1ll);
err = mSource->start(params.get());
} else {
sp<MetaData> params = new MetaData;// 是不是将关键帧设置了只有三个
params->setInt32(kKeyNumBuffers,3 );
err = mSource->start(params.get());
}case kWhatPull:
{
int32_t generation;
CHECK(msg->findInt32("generation", &generation));if (generation != mPullGeneration) {
break;
}MediaBuffer *mbuf;
status_t err = mSource->read(&mbuf);if (mPaused) {
if (err == OK) {
mbuf->release();
mbuf = NULL;
}schedulePull();
break;
}
pizzaframeworksavmedialibstagefrightwifi-displaysourcePlaybackSession.h
负责管理wifidisplay当中的RTP/RTCP的网络连接
PlaybackSession(
const sp<ANetworkSession> &netSession,
const sp<AMessage> ¬ify,
const struct in_addr &interfaceAddr,
const sp<IHDCP> &hdcp,
int width=0,
int height=0,
bool isRecordingScreen=false,
WifiDisplaySource *wifiDisplaySource=NULL);
PlaybackSession(
const sp<ANetworkSession> &netSession,
const sp<AMessage> ¬ify,
const struct in_addr &interfaceAddr,
const sp<IHDCP> &hdcp,
int width=0,
int height=0,
WifiDisplaySource *wifiDisplaySource=NULL);status_t initEx(
const char *clientIP, int32_t clientRtp, int32_t clientRtcp,
Sender::TransportMode transportMode,
bool usePCMAudio, char *outfile);bool mIsRecordingScreen;
WifiDisplaySource *mWifiDisplaySource;
pizzaframeworksavmedialibstagefrightwifi-displaysourceSender.h
#include "WifiDisplaySource.h"
struct WifiDisplaySource;
Sender(const sp<ANetworkSession> &netSession, const sp<AMessage> ¬ify, char *outfile, WifiDisplaySource *wifiDisplaySource);
bool mIsRecordingScreen;
WifiDisplaySource *mWifiDisplaySource;//#if LOG_TRANSPORT_STREAM
FILE *mLogFile;
//#endif
char mOutFile[1024];
char mRecBuf[1024 * 10];status_t sendTsPacket(int32_t sessionID, const void *data, size_t size);
pizzaframeworksavmedialibstagefrightwifi-displaysourceTSPacketizer.cpp
转换成TS数据流
pizzaframeworksavmedialibstagefrightwifi-displaysourceWifiDisplaySource.h
wifidisplay的总管理
status_t startRecord(const char *iface);
status_t record(char *data, int len);
enum {
kWhatStart,
kWhatRTSPNotify,
kWhatStop,
kWhatPause,
kWhatResume,
kWhatReapDeadClients,
kWhatPlaybackSessionNotify,
kWhatKeepAlive,
kWhatHDCPNotify,
kWhatFinishStop2,
kWhatTeardownTriggerTimedOut,
kWhatStartRecord,
kWhatSetupRecord,
kWhatRecord,
kWhatStopRecord,
};status_t onSetupRequestEx(char *outfile);
status_t onPlayRequest(
int32_t sessionID,
int32_t cseq,
const sp<ParsedMessage> &data);
status_t onPlayRequestEx();
status_t onPauseRequest(
int32_t sessionID,
int32_t cseq,
const sp<ParsedMessage> &data);
status_t onPauseRequestEx();
status_t onTeardownRequest(
int32_t sessionID,
int32_t cseq,
const sp<ParsedMessage> &data);status_t onTeardownRequestEx();
void setOutputFile(const char *filename);
pizzaframeworksavmedialibstagefrightwifi-displayANetworkSession.cpp
将转发到
status_t sendTsPacket(const void *data, ssize_t size);
void setRtpSink(RTPSink* rtpsink);
ANetworkSession *mNetworkSession;
sp<RTPSink> mRTPSink;