command: implement A-B loops

Probably needs to be polished a bit more. Also, might require a key
binding that can set/clear the loop points in a more intuitive way.

For now, something like this can be put into input.conf to use it:

ctrl+y set ab-loop-a ${time-pos}    # set A
ctrl+x set ab-loop-b ${time-pos}    # set B
ctrl+c set ab-loop-a no             # clear (mostly)

Fixes #1241.

1 files changed, 17 insertions, 7 deletions

diff --git a/player/osd.c b/player/osd.c
index 7e099e2d0c..b6a0c1b98d 100644
--- a/player/osd.c
+++ b/player/osd.c
@@ -333,19 +333,29 @@ static void update_osd_bar(struct MPContext *mpctx, int type,
 
 static void set_osd_bar_chapters(struct MPContext *mpctx, int type)
 {
+    struct MPOpts *opts = mpctx->opts;
     if (mpctx->osd_progbar.type != type)
         return;
 
     mpctx->osd_progbar.num_stops = 0;
     double len = get_time_length(mpctx);
     if (len > 0) {
-        int num = get_chapter_count(mpctx);
-        for (int n = 0; n < num; n++) {
-            double time = chapter_start_time(mpctx, n);
-            if (time >= 0) {
-                float pos = time / len;
-                MP_TARRAY_APPEND(mpctx, mpctx->osd_progbar.stops,
-                                    mpctx->osd_progbar.num_stops, pos);
+        if (opts->ab_loop[0] != MP_NOPTS_VALUE &&
+            opts->ab_loop[1] != MP_NOPTS_VALUE)
+        {
+            MP_TARRAY_APPEND(mpctx, mpctx->osd_progbar.stops,
+                        mpctx->osd_progbar.num_stops, opts->ab_loop[0] / len);
+            MP_TARRAY_APPEND(mpctx, mpctx->osd_progbar.stops,
+                        mpctx->osd_progbar.num_stops, opts->ab_loop[1] / len);
+        } else {
+            int num = get_chapter_count(mpctx);
+            for (int n = 0; n < num; n++) {
+                double time = chapter_start_time(mpctx, n);
+                if (time >= 0) {
+                    float pos = time / len;
+                    MP_TARRAY_APPEND(mpctx, mpctx->osd_progbar.stops,
+                                     mpctx->osd_progbar.num_stops, pos);
+                }
             }
         }
     }