player: log track list when adding or removing external files

Should help with debugging, and might be slightly more userfriendly.

Note that this is called manually in multiple entry-points, instead of
the functions doing the actual work (like mp_remove_track()). This is
done so that exiting the player or calling the sub_reload command won't
print redundant in-between states.

3 files changed, 16 insertions, 5 deletions

diff --git a/player/command.c b/player/command.c
index 3556986473..4b1979b14d 100644
--- a/player/command.c
+++ b/player/command.c
@@ -4530,6 +4530,7 @@ int run_command(struct MPContext *mpctx, struct mp_cmd *cmd, struct mpv_node *re
         char *lang = cmd->args[3].v.s;
         if (lang && lang[0])
             t->lang = talloc_strdup(t, lang);
+        print_track_list(mpctx);
         break;
     }
 
@@ -4540,6 +4541,7 @@ int run_command(struct MPContext *mpctx, struct mp_cmd *cmd, struct mpv_node *re
         if (!t)
             return -1;
         mp_remove_track(mpctx, t);
+        print_track_list(mpctx);
         break;
     }
 
@@ -4553,6 +4555,7 @@ int run_command(struct MPContext *mpctx, struct mp_cmd *cmd, struct mpv_node *re
             if (nt) {
                 mp_remove_track(mpctx, t);
                 mp_switch_track(mpctx, nt->type, nt);
+                print_track_list(mpctx);
                 return 0;
             }
         }
@@ -4573,6 +4576,8 @@ int run_command(struct MPContext *mpctx, struct mp_cmd *cmd, struct mpv_node *re
                                            opts->sub_id_ff, opts->sub_lang);
             if (s && s->is_external)
                 mp_switch_track(mpctx, STREAM_SUB, s);
+
+            print_track_list(mpctx);
         }
         break;
     }
diff --git a/player/core.h b/player/core.h
index 714fd5d4bd..da9401be36 100644
--- a/player/core.h
+++ b/player/core.h
@@ -396,6 +396,7 @@ struct playlist_entry *mp_next_file(struct MPContext *mpctx, int direction,
 void mp_set_playlist_entry(struct MPContext *mpctx, struct playlist_entry *e);
 void mp_play_files(struct MPContext *mpctx);
 void update_demuxer_properties(struct MPContext *mpctx);
+void print_track_list(struct MPContext *mpctx);
 void reselect_demux_streams(struct MPContext *mpctx);
 void prepare_playlist(struct MPContext *mpctx, struct playlist *pl);
 void autoload_external_files(struct MPContext *mpctx);
diff --git a/player/loadfile.c b/player/loadfile.c
index c0888466e8..40ed71d5fd 100644
--- a/player/loadfile.c
+++ b/player/loadfile.c
@@ -143,6 +143,15 @@ static void print_stream(struct MPContext *mpctx, struct track *t)
     MP_INFO(mpctx, "%s\n", b);
 }
 
+void print_track_list(struct MPContext *mpctx)
+{
+    for (int t = 0; t < STREAM_TYPE_COUNT; t++) {
+        for (int n = 0; n < mpctx->num_tracks; n++)
+            if (mpctx->tracks[n]->type == t)
+                print_stream(mpctx, mpctx->tracks[n]);
+    }
+}
+
 void update_demuxer_properties(struct MPContext *mpctx)
 {
     struct demuxer *demuxer = mpctx->master_demuxer;
@@ -167,11 +176,7 @@ void update_demuxer_properties(struct MPContext *mpctx)
     struct demuxer *tracks = mpctx->track_layout;
     if (tracks->events & DEMUX_EVENT_STREAMS) {
         add_demuxer_tracks(mpctx, tracks);
-        for (int t = 0; t < STREAM_TYPE_COUNT; t++) {
-            for (int n = 0; n < mpctx->num_tracks; n++)
-                if (mpctx->tracks[n]->type == t)
-                    print_stream(mpctx, mpctx->tracks[n]);
-        }
+        print_track_list(mpctx);
         tracks->events &= ~DEMUX_EVENT_STREAMS;
     }
     if (events & DEMUX_EVENT_METADATA) {