vo: make swapchain-depth option generic for all VOs

In preparation for making vo_drm able to use swapchain-depth

2 files changed, 4 insertions, 0 deletions

diff --git a/options/options.c b/options/options.c
index 9e74821278..7f0fde6af5 100644
--- a/options/options.c
+++ b/options/options.c
@@ -160,6 +160,7 @@ static const m_option_t mp_vo_opt_list[] = {
 #if HAVE_DRM
     OPT_SUBSTRUCT("", drm_opts, drm_conf, 0),
 #endif
+    OPT_INTRANGE("swapchain-depth", swapchain_depth, 0, 1, 8),
     {0}
 };
 
@@ -186,6 +187,7 @@ const struct m_sub_options vo_sub_opts = {
         .mmcss_profile = "Playback",
         .ontop_level = -1,
         .timing_offset = 0.050,
+        .swapchain_depth = 3,
     },
 };
 
diff --git a/options/options.h b/options/options.h
index d979f11e19..be76364c89 100644
--- a/options/options.h
+++ b/options/options.h
@@ -59,6 +59,8 @@ typedef struct mp_vo_opts {
     struct sws_opts *sws_opts;
     // vo_drm
     struct drm_opts *drm_opts;
+
+    int swapchain_depth;  // max number of images to render ahead
 } mp_vo_opts;
 
 // Subtitle options needed by the subtitle decoders/renderers.