Implemented buffering manipulation at the es_out level.

It allows faster seek and start up time when the access pace can be controlled.

src/input/clock.c

@@ -361,6 +361,42 @@ int input_clock_GetRate( input_clock_t *cl )
     return i_rate;
 }
 
+int input_clock_GetState( input_clock_t *cl,
+                          mtime_t *pi_stream_start, mtime_t *pi_system_start,
+                          mtime_t *pi_stream_duration, mtime_t *pi_system_duration )
+{
+    vlc_mutex_lock( &cl->lock );
+
+    if( !cl->b_has_reference )
+    {
+        vlc_mutex_unlock( &cl->lock );
+        return VLC_EGENERIC;
+    }
+
+    *pi_stream_start = cl->ref.i_stream;
+    *pi_system_start = cl->ref.i_system;
+
+    *pi_stream_duration = cl->last.i_stream - cl->ref.i_stream;
+    *pi_system_duration = cl->last.i_system - cl->ref.i_system;
+
+    vlc_mutex_unlock( &cl->lock );
+
+    return VLC_SUCCESS;
+}
+
+void input_clock_ChangeSystemOrigin( input_clock_t *cl, mtime_t i_system )
+{
+    vlc_mutex_lock( &cl->lock );
+
+    assert( cl->b_has_reference );
+    const mtime_t i_offset = i_system - cl->ref.i_system;
+
+    cl->ref.i_system += i_offset;
+    cl->last.i_system += i_offset;
+
+    vlc_mutex_unlock( &cl->lock );
+}
+
 /*****************************************************************************
  * ClockStreamToSystem: converts a movie clock to system date
  *****************************************************************************/

src/input/input_clock.h

@@ -75,6 +75,13 @@ void    input_clock_ChangeRate( input_clock_t *, int i_rate );
  */
 void    input_clock_ChangePause( input_clock_t *, bool b_paused, mtime_t i_date );
 
+/**
+ * This function allows to rebase the original system value date.
+ * It can be called only imediatly after a input_clock_Update call.
+ * FIXME ugly
+ */
+void    input_clock_ChangeSystemOrigin( input_clock_t *, mtime_t i_system );
+
 /**
  * This function converts a timestamp from stream clock to system clock.
  *
@@ -88,5 +95,13 @@ mtime_t input_clock_GetTS( input_clock_t *, int *pi_rate, mtime_t i_pts_delay, m
  */
 int input_clock_GetRate( input_clock_t * );
 
+/**
+ * This function returns current clock state or VLC_EGENERIC if there is not a
+ * reference point.
+ */
+int input_clock_GetState( input_clock_t *,
+                          mtime_t *pi_stream_start, mtime_t *pi_system_start,
+                          mtime_t *pi_stream_duration, mtime_t *pi_system_duration );
+
 #endif
 

src/input/input_decoder.h

@@ -51,6 +51,11 @@ void input_DecoderChangeDelay( decoder_t *, mtime_t i_delay );
  */
 void input_DecoderStartBuffering( decoder_t * );
 
+/**
+ * This function waits for the decoder to have buffered sufficient data.
+ */
+void input_DecoderWaitBuffering( decoder_t * );
+
 /**
  * This function stops the buffering mode.
  */