From a2e342caebbb96c2132d32e99bfa3335e86138cb Mon Sep 17 00:00:00 2001
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From: Jeffy Chen <jeffy.chen@rock-chips.com>
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Date: Mon, 8 Nov 2021 18:45:00 +0800
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Subject: [PATCH 32/40] waylandsink: Support frame-sync mode
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Set env "WAYLANDSINK_SYNC_FRAME" to enable frame syncing.
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Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
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---
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ext/wayland/gstwaylandsink.c | 9 +++++++++
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ext/wayland/gstwaylandsink.h | 1 +
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2 files changed, 10 insertions(+)
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diff --git a/ext/wayland/gstwaylandsink.c b/ext/wayland/gstwaylandsink.c
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index 4c69a80..3bb786a 100644
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--- a/ext/wayland/gstwaylandsink.c
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+++ b/ext/wayland/gstwaylandsink.c
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@@ -282,6 +282,7 @@ gst_wayland_sink_init (GstWaylandSink * sink)
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{
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g_mutex_init (&sink->display_lock);
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g_mutex_init (&sink->render_lock);
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+ g_cond_init (&sink->redraw_cond);
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sink->window_handle = 1;
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sink->layer = GST_WL_WINDOW_LAYER_NORMAL;
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@@ -437,6 +438,7 @@ gst_wayland_sink_finalize (GObject * object)
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g_mutex_clear (&sink->display_lock);
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g_mutex_clear (&sink->render_lock);
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+ g_cond_clear (&sink->redraw_cond);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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@@ -781,6 +783,7 @@ frame_redraw_callback (void *data, struct wl_callback *callback, uint32_t time)
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g_mutex_lock (&sink->render_lock);
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sink->redraw_pending = FALSE;
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+ g_cond_signal (&sink->redraw_cond);
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if (sink->callback) {
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wl_callback_destroy (callback);
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@@ -817,6 +820,11 @@ render_last_buffer (GstWaylandSink * sink, gboolean redraw)
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}
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sink->window->fill_mode = sink->fill_mode;
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gst_wl_window_render (sink->window, wlbuffer, info);
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+
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+ if (g_getenv ("WAYLANDSINK_SYNC_FRAME")) {
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+ while (sink->redraw_pending)
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+ g_cond_wait (&sink->redraw_cond, &sink->render_lock);
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+ }
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}
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static void
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@@ -1017,6 +1025,7 @@ render:
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if (buffer != to_render)
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gst_buffer_unref (to_render);
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+
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goto done;
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no_window_size:
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diff --git a/ext/wayland/gstwaylandsink.h b/ext/wayland/gstwaylandsink.h
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index dc3a1d1..376e3a4 100644
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--- a/ext/wayland/gstwaylandsink.h
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+++ b/ext/wayland/gstwaylandsink.h
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@@ -71,6 +71,7 @@ struct _GstWaylandSink
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gboolean resend_info;
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gboolean redraw_pending;
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GMutex render_lock;
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+ GCond redraw_cond;
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GstBuffer *last_buffer;
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GstVideoRectangle render_rectangle;
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--
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2.17.1
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