clock: publicly expose clock's typedefs

This is needed to expose a clock subset to stream outputs. It also
reduce the amount of redundant typedefs to the clock in the core
codebase.

include/vlc_clock.h

@@ -0,0 +1,40 @@
+/*****************************************************************************
+ * vlc_clock.h: clock API
+ *****************************************************************************
+ * Copyright (C) 2023 VLC authors and VideoLAN
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#ifndef VLC_CLOCK_H
+#define VLC_CLOCK_H 1
+
+/**
+ * The VLC clock API.
+ *
+ * The publicly exposed clock API is for now very restraint. For now, only a
+ * subset of the clock is exposed and simplified for stream output modules.
+ *
+ * The actual clock implementation is mostly private for now as no other use
+ * case is found.
+ */
+
+/**
+ * Opaques VLC Clock types.
+ */
+typedef struct vlc_clock_main_t vlc_clock_main_t;
+typedef struct vlc_clock_t vlc_clock_t;
+
+#endif

src/Makefile.am

@@ -43,6 +43,7 @@ pluginsinclude_HEADERS = \
 	../include/vlc_configuration.h \
 	../include/vlc_cpu.h \
 	../include/vlc_cxx_helpers.hpp \
+	../include/vlc_clock.h \
 	../include/vlc_decoder.h \
 	../include/vlc_demux.h \
 	../include/vlc_dialog.h \

src/clock/clock.h

@@ -20,6 +20,8 @@
 #ifndef CLOCK_H
 #define CLOCK_H
 
+#include <vlc_clock.h>
+
 enum vlc_clock_master_source
 {
     VLC_CLOCK_MASTER_AUTO= 0,
@@ -28,9 +30,6 @@ enum vlc_clock_master_source
     VLC_CLOCK_MASTER_MONOTONIC,
 };
 
-typedef struct vlc_clock_main_t vlc_clock_main_t;
-typedef struct vlc_clock_t vlc_clock_t;
-
 /**
  * Callbacks for the owner of the main clock
  */

src/video_output/vout_internal.h

@@ -25,9 +25,9 @@
 #define LIBVLC_VOUT_INTERNAL_H 1
 
 #include <vlc_vout_display.h>
+#include <vlc_clock.h>
 
 typedef struct input_thread_t input_thread_t;
-typedef struct vlc_clock_t vlc_clock_t;
 
 /* It should be high enough to absorbe jitter due to difficult picture(s)
  * to decode but not too high as memory is not that cheap.