Add a Futatabi metric for number of received frames.

diff --git a/futatabi/main.cpp b/futatabi/main.cpp
index 3efefd5e94a1a279c751e970fa8b27be69485f16..486bcfff213654bf409691ac4212bd4acdaaa44c 100644 (file)
--- a/futatabi/main.cpp
+++ b/futatabi/main.cpp
@@ -34,6 +34,7 @@ extern "C" {
 #include "shared/post_to_main_thread.h"
 #include "shared/ref_counted_gl_sync.h"
 #include "shared/timebase.h"
+#include "shared/metrics.h"
 #include "ui_mainwindow.h"
 #include "vaapi_jpeg_decoder.h"
 
@@ -69,6 +70,8 @@ mutex frame_mu;
 vector<FrameOnDisk> frames[MAX_STREAMS];  // Under frame_mu.
 vector<string> frame_filenames;  // Under frame_mu.
 
+atomic<int64_t> metric_received_frames[MAX_STREAMS]{{0}};
+
 namespace {
 
 FrameOnDisk write_frame(int stream_idx, int64_t pts, const uint8_t *data, size_t size, DB *db)
@@ -453,6 +456,10 @@ void load_existing_frames()
 
 void record_thread_func()
 {
+       for (unsigned i = 0; i < MAX_STREAMS; ++i) {
+               global_metrics.add("received_frames", {{ "stream", to_string(i) }}, &metric_received_frames[i]);
+       }
+
        if (global_flags.stream_source.empty() || global_flags.stream_source == "/dev/null") {
                // Save the user from some repetitive messages.
                return;
@@ -460,7 +467,7 @@ void record_thread_func()
 
        pthread_setname_np(pthread_self(), "ReceiveFrames");
 
-       int64_t pts_offset;
+       int64_t pts_offset = 0;  // Needs to be initialized due to a spurious GCC warning.
        DB db(global_flags.working_directory + "/futatabi.db");
 
        while (!should_quit.load()) {
@@ -486,6 +493,11 @@ void record_thread_func()
                        if (av_read_frame(format_ctx.get(), &pkt) != 0) {
                                break;
                        }
+                       if (pkt.stream_index >= MAX_STREAMS) {
+                               continue;
+                       }
+
+                       ++metric_received_frames[pkt.stream_index];
 
                        // Convert pts to our own timebase.
                        AVRational stream_timebase = format_ctx->streams[pkt.stream_index]->time_base;