core: add --heartbeat-interval option

This closely follows MPlayer commit 36099, with some changes.

Move a mutable static variable into MPContext.

5 files changed, 8 insertions, 3 deletions

diff --git a/core/cfg-mplayer.h b/core/cfg-mplayer.h
index 5bae70ab0e..17f39822fe 100644
--- a/core/cfg-mplayer.h
+++ b/core/cfg-mplayer.h
@@ -598,6 +598,7 @@ const m_option_t mplayer_opts[]={
     OPT_STRINGLIST("fstype", vo.fstype_list, 0),
 #endif
     OPT_STRING("heartbeat-cmd", heartbeat_cmd, 0),
+    OPT_FLOAT("heartbeat-interval", heartbeat_interval, CONF_MIN, 0),
     OPT_FLAG("mouseinput", vo.nomouse_input, 0),
 
     OPT_CHOICE_OR_INT("screen", vo.screen_id, 0, 0, 32,
diff --git a/core/defaultopts.c b/core/defaultopts.c
index 6c00af9a92..44ec8f1978 100644
--- a/core/defaultopts.c
+++ b/core/defaultopts.c
@@ -36,6 +36,7 @@ void set_default_mplayer_options(struct MPOpts *opts)
             .WinID = -1,
         },
         .wintitle = "mpv - ${media-title}",
+        .heartbeat_interval = 30.0,
         .gamma_gamma = 1000,
         .gamma_brightness = 1000,
         .gamma_contrast = 1000,
diff --git a/core/mp_core.h b/core/mp_core.h
index b8782f14e9..ea3d918b27 100644
--- a/core/mp_core.h
+++ b/core/mp_core.h
@@ -220,6 +220,7 @@ typedef struct MPContext {
 
     float audio_delay;
 
+    unsigned int last_heartbeat;
     // used to prevent hanging in some error cases
     unsigned int start_timestamp;
 
diff --git a/core/mplayer.c b/core/mplayer.c
index 460862f057..21af9ca57a 100644
--- a/core/mplayer.c
+++ b/core/mplayer.c
@@ -3243,10 +3243,11 @@ static void run_playloop(struct MPContext *mpctx)
         vo_check_events(vo);
 
         if (opts->heartbeat_cmd) {
-            static unsigned last_heartbeat;
             unsigned now = GetTimerMS();
-            if (now - last_heartbeat > 30000) {
-                last_heartbeat = now;
+            if (now - mpctx->last_heartbeat >
+                (unsigned)(opts->heartbeat_interval * 1000))
+            {
+                mpctx->last_heartbeat = now;
                 system(opts->heartbeat_cmd);
             }
         }
diff --git a/core/options.h b/core/options.h
index 999f3439e9..0f1df17ba5 100644
--- a/core/options.h
+++ b/core/options.h
@@ -109,6 +109,7 @@ typedef struct MPOpts {
     char *status_msg;
     char *osd_status_msg;
     char *heartbeat_cmd;
+    float heartbeat_interval;
     int player_idle_mode;
     int slave_mode;
     int consolecontrols;