Expose when we started the current output file.

diff --git a/quicksync_encoder.cpp b/quicksync_encoder.cpp
index 7cdec58a796d460be37dd068511a4dfdc58ddbf5..a0b3876ae59098e85ec7847d785f143031580405 100644 (file)
--- a/quicksync_encoder.cpp
+++ b/quicksync_encoder.cpp
@@ -71,6 +71,7 @@ namespace {
 bool mux_metrics_inited = false;
 LatencyHistogram mixer_latency_histogram, qs_latency_histogram;
 MuxMetrics current_file_mux_metrics, total_mux_metrics;
+std::atomic<double> metric_current_file_start_time_seconds{0.0 / 0.0};
 
 }  // namespace
 
@@ -1576,6 +1577,7 @@ QuickSyncEncoderImpl::QuickSyncEncoderImpl(const std::string &filename, Resource
                qs_latency_histogram.init("quick_sync");
                current_file_mux_metrics.init({{ "destination", "current_file" }});
                total_mux_metrics.init({{ "destination", "files_total" }});
+               global_metrics.add("current_file_start_time_seconds", &metric_current_file_start_time_seconds, Metrics::TYPE_GAUGE);
                mux_metrics_inited = true;
        }
 
@@ -1808,6 +1810,7 @@ void QuickSyncEncoderImpl::shutdown()
 void QuickSyncEncoderImpl::close_file()
 {
        file_mux.reset();
+       metric_current_file_start_time_seconds = 0.0 / 0.0;
 }
 
 void QuickSyncEncoderImpl::open_output_file(const std::string &filename)
@@ -1836,6 +1839,7 @@ void QuickSyncEncoderImpl::open_output_file(const std::string &filename)
        file_mux.reset(new Mux(avctx, frame_width, frame_height, Mux::CODEC_H264, video_extradata, audio_codecpar.get(), TIMEBASE,
                std::bind(&DiskSpaceEstimator::report_write, disk_space_estimator, filename, _1),
                { &current_file_mux_metrics, &total_mux_metrics }));
+       metric_current_file_start_time_seconds = get_timestamp_for_metrics();
 
        if (global_flags.x264_video_to_disk) {
                x264_encoder->add_mux(file_mux.get());