From c655b2d499728a4871b4f68c4d0245fce322bdb5 Mon Sep 17 00:00:00 2001
From: ben <ben@b3059339-0415-0410-9bf9-f77b7e298cf2>
Date: Sat, 7 Jun 2008 12:42:00 +0000
Subject: Add routine to determine if SPU has changed in dvdnav stream.

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@27016 b3059339-0415-0410-9bf9-f77b7e298cf2
---
 stream/stream_dvdnav.c | 24 ++++++++++++++++++++++++
 stream/stream_dvdnav.h |  1 +
 2 files changed, 25 insertions(+)

(limited to 'stream')

diff --git a/stream/stream_dvdnav.c b/stream/stream_dvdnav.c
index 0d3eedacf5..6734a388ea 100644
--- a/stream/stream_dvdnav.c
+++ b/stream/stream_dvdnav.c
@@ -32,6 +32,7 @@ typedef enum {
   NAV_FLAG_SPU_SET              = 1 << 7,  /* spu_clut is valid */
   NAV_FLAG_STREAM_CHANGE        = 1 << 8,  /* title, chapter, audio or SPU */
   NAV_FLAG_AUDIO_CHANGE         = 1 << 9,  /* audio stream change event */
+  NAV_FLAG_SPU_CHANGE           = 1 << 10, /* spu stream change event */
 } dvdnav_state_t;
 
 typedef struct {
@@ -334,6 +335,7 @@ static int fill_buffer(stream_t *s, char *but, int len)
           mp_msg(MSGT_CPLAYER,MSGL_INFO, "DVDNAV, switched to title: %d\r\n", vts_event->new_vtsN);
           priv->state |= NAV_FLAG_CELL_CHANGED;
           priv->state |= NAV_FLAG_AUDIO_CHANGE;
+          priv->state |= NAV_FLAG_SPU_CHANGE;
           priv->state &= ~NAV_FLAG_WAIT_SKIP;
           priv->state &= ~NAV_FLAG_WAIT;
           s->end_pos = 0;
@@ -351,6 +353,7 @@ static int fill_buffer(stream_t *s, char *but, int len)
         case DVDNAV_CELL_CHANGE: {
           priv->state |= NAV_FLAG_CELL_CHANGED;
           priv->state |= NAV_FLAG_AUDIO_CHANGE;
+          priv->state |= NAV_FLAG_SPU_CHANGE;
           priv->state &= ~NAV_FLAG_WAIT_SKIP;
           priv->state &= ~NAV_FLAG_WAIT;
           if (priv->state & NAV_FLAG_WAIT_READ_AUTO)
@@ -366,6 +369,9 @@ static int fill_buffer(stream_t *s, char *but, int len)
         case DVDNAV_AUDIO_STREAM_CHANGE:
           priv->state |= NAV_FLAG_AUDIO_CHANGE;
         break;
+        case DVDNAV_SPU_STREAM_CHANGE:
+          priv->state |= NAV_FLAG_SPU_CHANGE;
+        break;
       }
   }
   mp_msg(MSGT_STREAM,MSGL_DBG2,"DVDNAV fill_buffer len: %d\n",len);
@@ -930,6 +936,24 @@ int mp_dvdnav_audio_has_changed (stream_t *stream, int clear) {
   return 1;
 }
 
+/**
+ * \brief Check if SPU has changed
+ * \param stream: - stream pointer
+ * \param clear : - if true, then clear spu change flag
+ * \return 1 if spu has changed
+ */
+int mp_dvdnav_spu_has_changed (stream_t *stream, int clear) {
+  dvdnav_priv_t *priv =  stream->priv;
+
+  if (!(priv->state & NAV_FLAG_SPU_CHANGE))
+    return 0;
+
+  if (clear)
+    priv->state &= ~NAV_FLAG_SPU_CHANGE;
+  
+  return 1;
+}
+
 /* Notify if something has changed in stream
  * Can be related to title, chapter, audio or SPU
  */
diff --git a/stream/stream_dvdnav.h b/stream/stream_dvdnav.h
index 7185acaa59..ff9c1796ef 100644
--- a/stream/stream_dvdnav.h
+++ b/stream/stream_dvdnav.h
@@ -32,6 +32,7 @@ int mp_dvdnav_skip_wait (stream_t *stream);
 void mp_dvdnav_read_wait (stream_t *stream, int mode, int automode);
 int mp_dvdnav_cell_has_changed (stream_t *stream, int clear);
 int mp_dvdnav_audio_has_changed (stream_t *stream, int clear);
+int mp_dvdnav_spu_has_changed (stream_t *stream, int clear);
 int mp_dvdnav_stream_has_changed (stream_t *stream);
 
 #endif /* MPLAYER_STREAM_DVDNAV_H */
-- 
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