Added a GOP setting to the MP4 output stream

divinus.yaml

@@ -57,6 +57,7 @@ mp4:
   width: 3840
   height: 2160
   fps: 20
+  gop: 40
   bitrate: 1024
   profile: 2
 

src/app_config.c

@@ -87,6 +87,7 @@ int save_app_config(void) {
     fprintf(file, "  width: %d\n", app_config.mp4_width);
     fprintf(file, "  height: %d\n", app_config.mp4_height);
     fprintf(file, "  fps: %d\n", app_config.mp4_fps);
+    fprintf(file, "  gop: %f\n", app_config.mp4_gop);
     fprintf(file, "  profile: %d\n", app_config.mp4_profile);
     fprintf(file, "  bitrate: %d\n", app_config.mp4_bitrate);
 
@@ -293,6 +294,8 @@ enum ConfigError parse_app_config(void) {
         err = parse_int(&ini, "mp4", "fps", 1, INT_MAX, &app_config.mp4_fps);
         if (err != CONFIG_OK)
             goto RET_ERR;
+        app_config.mp4_gop = app_config.mp4_fps;
+        parse_int(&ini, "mp4", "gop", 1, INT_MAX, &app_config.mp4_gop);
         {
             const char *possible_values[] = {"BP", "MP", "HP"};
             const int count = sizeof(possible_values) / sizeof(const char *);

src/app_config.h

@@ -51,6 +51,7 @@ struct AppConfig {
     bool mp4_codecH265;
     unsigned int mp4_mode;
     unsigned int mp4_fps;
+    unsigned int mp4_gop;
     unsigned int mp4_width;
     unsigned int mp4_height;
     unsigned int mp4_profile;

src/media.c

@@ -492,7 +492,7 @@ int enable_mp4(void) {
             HAL_VIDCODEC_H265 : HAL_VIDCODEC_H264;
         config.mode = app_config.mp4_mode;
         config.profile = app_config.mp4_profile;
-        config.gop = app_config.mp4_fps * 2;
+        config.gop = app_config.mp4_gop;
         config.framerate = app_config.mp4_fps;
         config.bitrate = app_config.mp4_bitrate;
         config.maxBitrate = app_config.mp4_bitrate * 5 / 4;