* src/video_output/vout_synchro.c: New --quiet-synchro config option.

include/vout_synchro.h

 /*****************************************************************************
  * vout_synchro.h: frame-dropping structures
  *****************************************************************************
- * Copyright (C) 1999-2003 VideoLAN
+ * Copyright (C) 1999-2005 VideoLAN
  * $Id$
  *
  * Authors: Christophe Massiot <massiot@via.ecp.fr>
@@ -37,6 +37,7 @@ struct vout_synchro_t
     int             i_frame_rate;
     int             i_current_rate;
     vlc_bool_t      b_no_skip;
+    vlc_bool_t      b_quiet;
 
     /* date of the beginning of the decoding of the current picture */
     mtime_t         decoding_start;

src/libvlc.h

 /*****************************************************************************
  * libvlc.h: main libvlc header
  *****************************************************************************
- * Copyright (C) 1998-2002 VideoLAN
+ * Copyright (C) 1998-2005 VideoLAN
  * $Id$
  *
  * Authors: Vincent Seguin <seguin@via.ecp.fr>
@@ -277,6 +277,11 @@ static char *ppsz_align_descriptions[] =
 #define SKIP_FRAMES_LONGTEXT N_( \
     "Disable this option to disable frame drops on MPEG-2 streams.")
 
+#define QUIET_SYNCHRO_TEXT N_("Quiet synchro")
+#define QUIET_SYNCHRO_LONGTEXT N_( \
+    "Enable this option to avoid flooding the message log with debug " \
+    "output from the video output synchro.")
+
 #define INPUT_CAT_LONGTEXT N_( \
     "These options allow you to modify the behavior of the input " \
     "subsystem, such as the DVD or VCD device, the network interface " \
@@ -925,6 +930,8 @@ vlc_module_begin();
         change_short('f');
     add_bool( "skip-frames", 1, NULL, SKIP_FRAMES_TEXT,
               SKIP_FRAMES_LONGTEXT, VLC_TRUE );
+    add_bool( "quiet-synchro", 0, NULL, QUIET_SYNCHRO_TEXT,
+              QUIET_SYNCHRO_LONGTEXT, VLC_TRUE );
 #ifndef SYS_DARWIN
     add_bool( "overlay", 1, NULL, OVERLAY_TEXT, OVERLAY_LONGTEXT, VLC_TRUE );
 #endif

src/video_output/vout_synchro.c

 /*****************************************************************************
  * vout_synchro.c : frame dropping routines
  *****************************************************************************
- * Copyright (C) 1999-2004 VideoLAN
+ * Copyright (C) 1999-2005 VideoLAN
  * $Id$
  *
  * Authors: Christophe Massiot <massiot@via.ecp.fr>
@@ -130,6 +130,7 @@ vout_synchro_t * __vout_SynchroInit( vlc_object_t * p_object,
     vlc_object_attach( p_synchro, p_object );
 
     p_synchro->b_no_skip = !config_GetInt( p_object, "skip-frames" );
+    p_synchro->b_quiet = config_GetInt( p_object, "quiet-synchro" );
 
     /* We use a fake stream pattern, which is often right. */
     p_synchro->i_n_p = p_synchro->i_eta_p = DEFAULT_NB_P;
@@ -216,7 +217,7 @@ vlc_bool_t vout_SynchroChoose( vout_synchro_t * p_synchro, int i_coding_type,
         {
             b_decode = (pts - now) > (TAU_PRIME(I_CODING_TYPE) + DELTA);
         }
-        if( !b_decode )
+        if( !b_decode && !p_synchro->b_quiet )
         {
             msg_Warn( p_synchro,
                       "synchro trashing I ("I64Fd")", pts - now );
@@ -366,6 +367,7 @@ void vout_SynchroNewPicture( vout_synchro_t * p_synchro, int i_coding_type,
         if( p_synchro->i_eta_p
              && p_synchro->i_eta_p != p_synchro->i_n_p )
         {
+            if( !p_synchro->b_quiet )
                 msg_Dbg( p_synchro,
                          "stream periodicity changed from P[%d] to P[%d]",
                          p_synchro->i_n_p, p_synchro->i_eta_p );
@@ -379,6 +381,7 @@ void vout_SynchroNewPicture( vout_synchro_t * p_synchro, int i_coding_type,
             p_synchro->i_dec_nb_ref = p_synchro->i_nb_ref;
 
 #if 0
+        if( !p_synchro->b_quiet )
             msg_Dbg( p_synchro, "I("I64Fd") P("I64Fd")[%d] B("I64Fd")"
                   "[%d] YUV("I64Fd") : trashed %d:%d/%d",
                   p_synchro->p_tau[I_CODING_TYPE],
@@ -394,8 +397,9 @@ void vout_SynchroNewPicture( vout_synchro_t * p_synchro, int i_coding_type,
         p_synchro->i_trashed_pic = p_synchro->i_not_chosen_pic
             = p_synchro->i_pic = 0;
 #else
-        if ( p_synchro->i_pic >= 100 )
+        if( p_synchro->i_pic >= 100 )
         {
+            if( !p_synchro->b_quiet )
                 msg_Dbg( p_synchro, "decoded %d/%d pictures",
                          p_synchro->i_pic
                            - p_synchro->i_trashed_pic,
@@ -411,6 +415,7 @@ void vout_SynchroNewPicture( vout_synchro_t * p_synchro, int i_coding_type,
         if( p_synchro->i_eta_b
              && p_synchro->i_eta_b != p_synchro->i_n_b )
         {
+            if( !p_synchro->b_quiet )
                 msg_Dbg( p_synchro,
                          "stream periodicity changed from B[%d] to B[%d]",
                          p_synchro->i_n_b, p_synchro->i_eta_b );
@@ -441,10 +446,10 @@ void vout_SynchroNewPicture( vout_synchro_t * p_synchro, int i_coding_type,
 
         if( next_pts )
         {
-            if( next_pts - p_synchro->current_pts
+            if( (next_pts - p_synchro->current_pts
                     > PTS_THRESHOLD
                   || p_synchro->current_pts - next_pts
-                    > PTS_THRESHOLD )
+                    > PTS_THRESHOLD) && !p_synchro->b_quiet )
             {
                 msg_Warn( p_synchro, "vout synchro warning: pts != "
                           "current_date ("I64Fd")",
@@ -465,16 +470,16 @@ void vout_SynchroNewPicture( vout_synchro_t * p_synchro, int i_coding_type,
                 (next_dts - p_synchro->backward_pts
                     > PTS_THRESHOLD
                   || p_synchro->backward_pts - next_dts
-                    > PTS_THRESHOLD) )
+                    > PTS_THRESHOLD) && !p_synchro->b_quiet )
             {
                 msg_Warn( p_synchro, "backward_pts != dts ("I64Fd")",
                            next_dts
                                - p_synchro->backward_pts );
             }
-            if( p_synchro->backward_pts - p_synchro->current_pts
+            if( (p_synchro->backward_pts - p_synchro->current_pts
                     > PTS_THRESHOLD
                   || p_synchro->current_pts - p_synchro->backward_pts
-                    > PTS_THRESHOLD )
+                    > PTS_THRESHOLD) && !p_synchro->b_quiet )
             {
                 msg_Warn( p_synchro,
                           "backward_pts != current_pts ("I64Fd")",
@@ -486,10 +491,10 @@ void vout_SynchroNewPicture( vout_synchro_t * p_synchro, int i_coding_type,
         }
         else if( next_dts )
         {
-            if( next_dts - p_synchro->current_pts
+            if( (next_dts - p_synchro->current_pts
                     > PTS_THRESHOLD
                   || p_synchro->current_pts - next_dts
-                    > PTS_THRESHOLD )
+                    > PTS_THRESHOLD) && !p_synchro->b_quiet )
             {
                 msg_Warn( p_synchro, "dts != current_pts ("I64Fd")",
                           p_synchro->current_pts
@@ -515,6 +520,7 @@ void vout_SynchroNewPicture( vout_synchro_t * p_synchro, int i_coding_type,
     {
         /* We cannot be _that_ late, something must have happened, reinit
          * the dates. */
+        if( !p_synchro->b_quiet )
             msg_Warn( p_synchro, "PTS << now ("I64Fd"), resetting",
                       now - p_synchro->current_pts - DEFAULT_PTS_DELAY );
         p_synchro->current_pts = now + DEFAULT_PTS_DELAY;