Allow non-realtime mode

components/rgbd-sources/src/file_source.cpp

 #include "file_source.hpp"
 
+#include <ftl/timer.hpp>
+
 using ftl::rgbd::detail::FileSource;
 using ftl::codecs::codec_t;
 
@@ -23,6 +25,8 @@ FileSource::FileSource(ftl::rgbd::Source *s, ftl::codecs::Reader *r, int sid) :
 	decoders_[1] = nullptr;
 	cache_read_ = -1;
 	cache_write_ = 0;
+	realtime_ = host_->value("realtime", true);
+	timestamp_ = r->getStartTime();
 
     r->onPacket(sid, [this](const ftl::codecs::StreamPacket &spkt, ftl::codecs::Packet &pkt) {
 		if (pkt.codec == codec_t::POSE) {
@@ -66,7 +70,11 @@ void FileSource::_removeChannel(int channel) {
 }
 
 bool FileSource::capture(int64_t ts) {
-    timestamp_ = ts;
+	if (realtime_) {
+    	timestamp_ = ts;
+	} else {
+		timestamp_ += ftl::timer::getInterval();
+	}
     return true;
 }
 

components/rgbd-sources/src/file_source.hpp

@@ -41,6 +41,8 @@ class FileSource : public detail::Source {
 
 	ftl::codecs::Decoder *decoders_[2];
 
+	bool realtime_;
+
 	void _removeChannel(int channel);
 	void _createDecoder(int ix, const ftl::codecs::Packet &pkt);
 };