* modules/codec/ffmpeg/*: some chroma conversion routines require libavcodec to be initialised.

modules/codec/ffmpeg/chroma.c

@@ -2,7 +2,7 @@
  * chroma.c: chroma conversion using ffmpeg library
  *****************************************************************************
  * Copyright (C) 1999-2001 VideoLAN
- * $Id: chroma.c,v 1.1 2003/04/27 15:25:11 gbazin Exp $
+ * $Id: chroma.c,v 1.2 2003/09/26 16:10:24 gbazin Exp $
  *
  * Authors: Gildas Bazin <gbazin@netcourrier.com>
  *
@@ -38,7 +38,8 @@
 
 #include "ffmpeg.h"
 
-void ChromaConversion( vout_thread_t *, picture_t *, picture_t * );
+void E_(ffmpeg_InitLibavcodec) ( vlc_object_t *p_object );
+static void ChromaConversion( vout_thread_t *, picture_t *, picture_t * );
 
 /*****************************************************************************
  * chroma_sys_t: chroma method descriptor
@@ -146,13 +147,16 @@ int E_(OpenChroma)( vlc_object_t *p_this )
     p_vout->chroma.p_sys->i_src_ffmpeg_chroma = i_ffmpeg_chroma[0];
     p_vout->chroma.p_sys->i_dst_ffmpeg_chroma = i_ffmpeg_chroma[1];
 
+    /* libavcodec needs to be initialized for some chroma conversions */
+    E_(ffmpeg_InitLibavcodec)(p_this);
+
     return VLC_SUCCESS;
 }
 
 /*****************************************************************************
  * ChromaConversion: actual chroma conversion function
  *****************************************************************************/
-void ChromaConversion( vout_thread_t *p_vout,
+static void ChromaConversion( vout_thread_t *p_vout,
                               picture_t *p_src, picture_t *p_dest )
 {
     AVPicture src_pic;

modules/codec/ffmpeg/ffmpeg.c

@@ -2,7 +2,7 @@
  * ffmpeg.c: video decoder using ffmpeg library
  *****************************************************************************
  * Copyright (C) 1999-2001 VideoLAN
- * $Id: ffmpeg.c,v 1.50 2003/09/20 01:36:57 hartman Exp $
+ * $Id: ffmpeg.c,v 1.51 2003/09/26 16:10:24 gbazin Exp $
  *
  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
  *
@@ -67,13 +67,14 @@
  * Local prototypes
  */
 int             E_(OpenChroma)  ( vlc_object_t * );
+void            E_(ffmpeg_InitLibavcodec) ( vlc_object_t *p_object );
+
 static int      OpenDecoder     ( vlc_object_t * );
 static int      RunDecoder      ( decoder_fifo_t * );
 
 static int      InitThread      ( generic_thread_t * );
 static void     EndThread       ( generic_thread_t * );
 
-
 static int      b_ffmpeginit = 0;
 
 static int ffmpeg_GetFfmpegCodec( vlc_fourcc_t, int *, int *, char ** );
@@ -282,28 +283,8 @@ static int RunDecoder( decoder_fifo_t *p_fifo )
 static int InitThread( generic_thread_t *p_decoder )
 {
     int i_result;
-    vlc_value_t lockval;
 
-
-    var_Get( p_decoder->p_fifo->p_libvlc, "avcodec", &lockval );
-    vlc_mutex_lock( lockval.p_address );
-
-     /* *** init ffmpeg library (libavcodec) *** */
-    if( !b_ffmpeginit )
-    {
-
-        avcodec_init();
-        avcodec_register_all();
-        b_ffmpeginit = 1;
-
-        msg_Dbg( p_decoder->p_fifo, "libavcodec initialized (interface %d )",
-                                                           LIBAVCODEC_BUILD );
-    }
-    else
-    {
-        msg_Dbg( p_decoder->p_fifo, "libavcodec already initialized" );
-    }
-    vlc_mutex_unlock( lockval.p_address );
+    E_(ffmpeg_InitLibavcodec)(VLC_OBJECT(p_decoder->p_fifo));
 
     /* *** determine codec type *** */
     ffmpeg_GetFfmpegCodec( p_decoder->p_fifo->i_fourcc,
@@ -645,3 +626,28 @@ static int ffmpeg_GetFfmpegCodec( vlc_fourcc_t i_fourcc,
 
     return( VLC_FALSE );
 }
+
+void E_ (ffmpeg_InitLibavcodec) ( vlc_object_t *p_object )
+{
+    vlc_value_t lockval;
+
+    var_Get( p_object->p_libvlc, "avcodec", &lockval );
+    vlc_mutex_lock( lockval.p_address );
+
+     /* *** init ffmpeg library (libavcodec) *** */
+    if( !b_ffmpeginit )
+    {
+        avcodec_init();
+        avcodec_register_all();
+        b_ffmpeginit = 1;
+
+        msg_Dbg( p_object, "libavcodec initialized (interface %d )",
+                 LIBAVCODEC_BUILD );
+    }
+    else
+    {
+        msg_Dbg( p_object, "libavcodec already initialized" );
+    }
+
+    vlc_mutex_unlock( lockval.p_address );
+}