void OnDemandServerMediaSubsession::nullSeekStream(unsigned /*clientSessionId*/, void* streamToken,
double streamEndTime, u_int64_t& numBytes) {
numBytes = 0; // by default: unknown
StreamState* streamState = (StreamState*)streamToken;
if (streamState != NULL && streamState->mediaSource() != NULL) {
// Because we're not seeking here, get the current NPT, and remember it as the new 'start' NPT:
streamState->startNPT() = getCurrentNPT(streamToken);
double duration = streamEndTime - streamState->startNPT();
if (duration < 0.0) duration = 0.0;
setStreamSourceDuration(streamState->mediaSource(), duration, numBytes);
RTPSink* rtpSink = streamState->rtpSink(); // alias
if (rtpSink != NULL) rtpSink->resetPresentationTimes();
}
}
void OnDemandServerMediaSubsession::nullSeekStream(unsigned /*clientSessionId*/, void* streamToken) {
StreamState* streamState = (StreamState*)streamToken;
if (streamState != NULL && streamState->mediaSource() != NULL) {
// Because we're not seeking here, get the current NPT, and remember it as the new 'start' NPT:
streamState->startNPT() = getCurrentNPT(streamToken);
RTPSink* rtpSink = streamState->rtpSink(); // alias
if (rtpSink != NULL) rtpSink->resetPresentationTimes();
}
}
float OnDemandServerMediaSubsession::getCurrentNPT(void* streamToken) {
do {
if (streamToken == NULL) break;
StreamState* streamState = (StreamState*)streamToken;
RTPSink* rtpSink = streamState->rtpSink();
if (rtpSink == NULL) break;
return streamState->startNPT()
+ (rtpSink->mostRecentPresentationTime().tv_sec - rtpSink->initialPresentationTime().tv_sec)
+ (rtpSink->mostRecentPresentationTime().tv_sec - rtpSink->initialPresentationTime().tv_sec)/1000000.0f;
} while (0);
return 0.0;
}
void OnDemandServerMediaSubsession::seekStream(unsigned /*clientSessionId*/,
void* streamToken, double& seekNPT, double streamDuration, u_int64_t& numBytes) {
numBytes = 0; // by default: unknown
// Seeking isn't allowed if multiple clients are receiving data from the same source:
if (fReuseFirstSource) return;
StreamState* streamState = (StreamState*)streamToken;
if (streamState != NULL && streamState->mediaSource() != NULL) {
seekStreamSource(streamState->mediaSource(), seekNPT, streamDuration, numBytes);
streamState->startNPT() = (float)seekNPT;
RTPSink* rtpSink = streamState->rtpSink(); // alias
if (rtpSink != NULL) rtpSink->resetPresentationTimes();
}
}
