Fix loading of existing frames with -d.

[nageru] / main.cpp

diff --git a/main.cpp b/main.cpp
index da2340bdfd81c34862bd075648395adaf1e8554b..6cd4741225b95c18b94764782147dfa00adcae8b 100644 (file)
--- a/main.cpp
+++ b/main.cpp
@@ -3,11 +3,13 @@
 #include <chrono>
 #include <condition_variable>
 #include <dirent.h>
+#include <getopt.h>
 #include <memory>
 #include <mutex>
 #include <stdint.h>
 #include <stdio.h>
 #include <string>
+#include <sys/stat.h>
 #include <sys/types.h>
 #include <thread>
 #include <vector>
@@ -21,6 +23,7 @@ extern "C" {
 #include "defs.h"
 #include "disk_space_estimator.h"
 #include "ffmpeg_raii.h"
+#include "flags.h"
 #include "httpd.h"
 #include "mainwindow.h"
 #include "player.h"
@@ -48,7 +51,8 @@ int64_t current_pts = 0;
 string filename_for_frame(unsigned stream_idx, int64_t pts)
 {
        char filename[256];
-       snprintf(filename, sizeof(filename), "frames/cam%d-pts%09ld.jpeg", stream_idx, pts);
+       snprintf(filename, sizeof(filename), "%s/frames/cam%d-pts%09ld.jpeg",
+               global_flags.working_directory.c_str(), stream_idx, pts);
        return filename;
 }
 
@@ -61,9 +65,30 @@ int record_thread_func();
 
 int main(int argc, char **argv)
 {
+       parse_flags(argc, argv);
+       if (optind == argc) {
+               global_flags.stream_source = "multiangle.mp4";
+               global_flags.slow_down_input = true;
+       } else if (optind + 1 == argc) {
+               global_flags.stream_source = argv[optind];
+       } else {
+               usage();
+               exit(1);
+       }
+
+       string frame_dir = global_flags.working_directory + "/frames";
+
+       struct stat st;
+       if (stat(frame_dir.c_str(), &st) == -1) {
+               fprintf(stderr, "%s does not exist, creating it.\n", frame_dir.c_str());
+               if (mkdir(frame_dir.c_str(), 0777) == -1) {
+                       perror(global_flags.working_directory.c_str());
+                       exit(1);
+               }
+       }
+
        avformat_network_init();
        global_httpd = new HTTPD;
-       global_httpd->start(DEFAULT_HTTPD_PORT);
 
        QCoreApplication::setAttribute(Qt::AA_ShareOpenGLContexts, true);
 
@@ -99,8 +124,11 @@ int main(int argc, char **argv)
                // TODO: Delete the surface, too.
        }
 
-       MainWindow mainWindow;
-       mainWindow.show();
+       MainWindow main_window;
+       main_window.show();
+
+       global_httpd->add_endpoint("/queue_status", bind(&MainWindow::get_queue_status, &main_window), HTTPD::NO_CORS_POLICY);
+       global_httpd->start(DEFAULT_HTTPD_PORT);
 
        init_jpeg_vaapi();
 
@@ -118,7 +146,8 @@ int main(int argc, char **argv)
 
 void load_existing_frames()
 {
-       DIR *dir = opendir("frames/");
+       string frame_dir = global_flags.working_directory + "/frames";
+       DIR *dir = opendir(frame_dir.c_str());
        if (dir == nullptr) {
                perror("frames/");
                start_pts = 0;
@@ -161,9 +190,9 @@ void load_existing_frames()
 
 int record_thread_func()
 {
-       auto format_ctx = avformat_open_input_unique("multiangle.mp4", nullptr, nullptr);
+       auto format_ctx = avformat_open_input_unique(global_flags.stream_source.c_str(), nullptr, nullptr);
        if (format_ctx == nullptr) {
-               fprintf(stderr, "%s: Error opening file\n", "example.mp4");
+               fprintf(stderr, "%s: Error opening file\n", global_flags.stream_source.c_str());
                return 1;
        }
 
@@ -222,8 +251,7 @@ int record_thread_func()
                assert(pkt.stream_index < MAX_STREAMS);
                frames[pkt.stream_index].push_back(pts);
 
-               // Hack. Remove when we're dealing with live streams.
-               if (last_pts != -1) {
+               if (last_pts != -1 && global_flags.slow_down_input) {
                        this_thread::sleep_for(microseconds((pts - last_pts) * 1000000 / TIMEBASE));
                }
                last_pts = pts;