Write some drop counters to stderr.

[nageru] / main.cpp

diff --git a/main.cpp b/main.cpp
index 17431aa46f127bb06fb33cd0dc9ec705bdcfc430..d916f44819841b105a80dfba6e3b5b2bf7d2d6e6 100644 (file)
--- a/main.cpp
+++ b/main.cpp
@@ -3,6 +3,7 @@
 #include <stdint.h>
 
 #include <chrono>
+#include <condition_variable>
 #include <memory>
 #include <mutex>
 #include <string>
@@ -15,14 +16,20 @@ extern "C" {
 
 #include <QApplication>
 
+#include "clip_list.h"
+#include "defs.h"
 #include "mainwindow.h"
 #include "ffmpeg_raii.h"
-
-#define MAX_STREAMS 16
+#include "player.h"
+#include "post_to_main_thread.h"
+#include "ui_mainwindow.h"
 
 using namespace std;
 using namespace std::chrono;
 
+// TODO: Replace by some sort of GUI control, I guess.
+int64_t current_pts = 0;
+
 string filename_for_frame(unsigned stream_idx, int64_t pts)
 {
        char filename[256];
@@ -33,7 +40,7 @@ string filename_for_frame(unsigned stream_idx, int64_t pts)
 mutex frame_mu;
 vector<int64_t> frames[MAX_STREAMS];
 
-int thread_func();
+int record_thread_func();
 
 int main(int argc, char **argv)
 {
@@ -44,19 +51,21 @@ int main(int argc, char **argv)
        MainWindow mainWindow;
        mainWindow.show();
 
-       thread(thread_func).detach();
+       thread(record_thread_func).detach();
 
        return app.exec();
 }
 
-int thread_func()
+int record_thread_func()
 {
-       auto format_ctx = avformat_open_input_unique("example.mp4", nullptr, nullptr);
+       auto format_ctx = avformat_open_input_unique("multiangle.mp4", nullptr, nullptr);
        if (format_ctx == nullptr) {
                fprintf(stderr, "%s: Error opening file\n", "example.mp4");
                return 1;
        }
 
+       int64_t last_pts = -1;
+
        for ( ;; ) {
                AVPacket pkt;
                unique_ptr<AVPacket, decltype(av_packet_unref)*> pkt_cleanup(
@@ -67,8 +76,8 @@ int thread_func()
                if (av_read_frame(format_ctx.get(), &pkt) != 0) {
                        break;
                }
-               fprintf(stderr, "Got a frame from camera %d, pts = %ld, size = %d\n",
-                       pkt.stream_index, pkt.pts, pkt.size);
+               //fprintf(stderr, "Got a frame from camera %d, pts = %ld, size = %d\n",
+               //      pkt.stream_index, pkt.pts, pkt.size);
                string filename = filename_for_frame(pkt.stream_index, pkt.pts);
                FILE *fp = fopen(filename.c_str(), "wb");
                if (fp == nullptr) {
@@ -78,10 +87,27 @@ int thread_func()
                fwrite(pkt.data, pkt.size, 1, fp);
                fclose(fp);
 
+               post_to_main_thread([pkt] {
+                       if (pkt.stream_index == 0) {
+                               global_mainwindow->ui->input1_display->setFrame(pkt.stream_index, pkt.pts);
+                       } else if (pkt.stream_index == 1) {
+                               global_mainwindow->ui->input2_display->setFrame(pkt.stream_index, pkt.pts);
+                       } else if (pkt.stream_index == 2) {
+                               global_mainwindow->ui->input3_display->setFrame(pkt.stream_index, pkt.pts);
+                       } else if (pkt.stream_index == 3) {
+                               global_mainwindow->ui->input4_display->setFrame(pkt.stream_index, pkt.pts);
+                       }
+               });
+
                assert(pkt.stream_index < MAX_STREAMS);
                frames[pkt.stream_index].push_back(pkt.pts);
 
-               this_thread::sleep_for(milliseconds(1000) / 120);
+               // Hack. Assumes a given timebase.
+               if (last_pts != -1) {
+                       this_thread::sleep_for(microseconds((pkt.pts - last_pts) * 1000000 / 12800));
+               }
+               last_pts = pkt.pts;
+               current_pts = pkt.pts;
        }
 
        return 0;