From d38bc531cc7ce9c90b74145e2be2e24cb48e501a Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Tue, 9 Dec 2014 17:46:35 +0100
Subject: vo: include normal render-ahead time in flip_queue_offset

A small refactor; shouldn't change any behavior.

Do this so immediate display can be achieved.
---
 video/out/vo.c       |  5 +++--
 video/out/vo.h       |  2 ++
 video/out/vo_vdpau.c | 15 ++++++++-------
 3 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/video/out/vo.c b/video/out/vo.c
index 7e2bcfb83e..518841007f 100644
--- a/video/out/vo.c
+++ b/video/out/vo.c
@@ -228,6 +228,7 @@ static struct vo *vo_create(struct mpv_global *global,
     talloc_steal(vo, log);
     *vo->in = (struct vo_internal) {
         .dispatch = mp_dispatch_create(vo),
+        .flip_queue_offset = VO_DEFAULT_FLIP_QUEUE_OFFSET,
     };
     mp_make_wakeup_pipe(vo->in->wakeup_pipe);
     mp_dispatch_set_wakeup_fn(vo->in->dispatch, dispatch_wakeup_cb, vo);
@@ -481,8 +482,8 @@ bool vo_is_ready_for_frame(struct vo *vo, int64_t next_pts)
     if (r) {
         // Don't show the frame too early - it would basically freeze the
         // display by disallowing OSD redrawing or VO interaction.
-        // Actually render the frame at earliest 50ms before target time.
-        next_pts -= 0.050 * 1e6;
+        // Actually render the frame at earliest 50ms before target time
+        // (flip_queue_offset is usually VO_DEFAULT_FLIP_QUEUE_OFFSET, 50ms).
         next_pts -= in->flip_queue_offset;
         int64_t now = mp_time_us();
         if (next_pts > now)
diff --git a/video/out/vo.h b/video/out/vo.h
index a083437397..f54e2c1a55 100644
--- a/video/out/vo.h
+++ b/video/out/vo.h
@@ -158,6 +158,8 @@ struct voctrl_screenshot_args {
 // VO does framedrop itself (vo_vdpau). Untimed/encoding VOs never drop.
 #define VO_CAP_FRAMEDROP 2
 
+#define VO_DEFAULT_FLIP_QUEUE_OFFSET ((uint64_t)(0.050 * 1e6))
+
 struct vo;
 struct osd_state;
 struct mp_image;
diff --git a/video/out/vo_vdpau.c b/video/out/vo_vdpau.c
index aa2cd910a0..c1b63345f1 100644
--- a/video/out/vo_vdpau.c
+++ b/video/out/vo_vdpau.c
@@ -99,7 +99,7 @@ struct vdpctx {
     int                                chroma_deint;
     int                                flip_offset_window;
     int                                flip_offset_fs;
-    int                                flip_offset_ms;
+    int64_t                            flip_offset_us;
     bool                               flip;
 
     VdpRect                            src_rect_vid;
@@ -258,11 +258,12 @@ static void resize(struct vo *vo)
     vc->src_rect_vid.y0 = vc->flip ? src_rect.y1 : src_rect.y0;
     vc->src_rect_vid.y1 = vc->flip ? src_rect.y0 : src_rect.y1;
 
-    vc->flip_offset_ms = vo->opts->fullscreen ?
-                         vc->flip_offset_fs :
-                         vc->flip_offset_window;
+    vc->flip_offset_us = vo->opts->fullscreen ?
+                         1000LL * vc->flip_offset_fs :
+                         1000LL * vc->flip_offset_window;
+    vc->flip_offset_us += VO_DEFAULT_FLIP_QUEUE_OFFSET;
 
-    vo_set_flip_queue_offset(vo, vc->flip_offset_ms * 1000);
+    vo_set_flip_queue_offset(vo, vc->flip_offset_us);
 
     if (vc->output_surface_width < vo->dwidth
         || vc->output_surface_height < vo->dheight) {
@@ -752,11 +753,11 @@ static int flip_page_timed(struct vo *vo, int64_t pts_us, int duration)
     /* This should normally never happen.
      * - The last queued frame can't have a PTS that goes more than 50ms in the
      *   future. This is guaranteed by vo.c, which currently actually queues
-     *   ahead by roughly 50ms, plus the flip queue offset. Just to be sure
+     *   ahead by roughly the flip queue offset. Just to be sure
      *   give some additional room by doubling the time.
      * - The last vsync can never be in the future.
      */
-    int64_t max_pts_ahead = (vc->flip_offset_ms + 50) * 1000 * 1000 * 2;
+    int64_t max_pts_ahead = vc->flip_offset_us * 1000 * 2;
     if (vc->last_queue_time > now + max_pts_ahead ||
         vc->recent_vsync_time > now)
     {
-- 
cgit v1.2.3