Remove code from module descriptor.

That's very naughty.

modules/codec/ffmpeg/audio.c

@@ -91,6 +91,7 @@ int E_(InitAudioDec)( decoder_t *p_dec, AVCodecContext *p_context,
     decoder_sys_t *p_sys;
     vlc_value_t lockval;
 
+    var_Create( p_object->p_libvlc_global, "avcodec", VLC_VAR_MUTEX );
     var_Get( p_dec->p_libvlc_global, "avcodec", &lockval );
 
     /* Allocate the memory needed to store the decoder's structure */

modules/codec/ffmpeg/encoder.c

@@ -197,6 +197,7 @@ int E_(OpenEncoder)( vlc_object_t *p_this )
     vlc_value_t val;
     vlc_value_t lockval;
 
+    var_Create( p_object->p_libvlc_global, "avcodec", VLC_VAR_MUTEX );
     var_Get( p_enc->p_libvlc_global, "avcodec", &lockval );
 
     if( !E_(GetFfmpegCodec)( p_enc->fmt_out.i_codec, &i_cat, &i_codec_id,

modules/codec/ffmpeg/ffmpeg.c

@@ -235,8 +235,6 @@ vlc_module_begin();
     add_shortcut( "ffmpeg-deinterlace" );
 #endif
 
-    var_Create( p_module->p_libvlc_global, "avcodec", VLC_VAR_MUTEX );
-
 vlc_module_end();
 
 /*****************************************************************************
@@ -428,6 +426,7 @@ void E_(InitLibavcodec)( vlc_object_t *p_object )
     static int b_ffmpeginit = 0;
     vlc_value_t lockval;
 
+    var_Create( p_object->p_libvlc_global, "avcodec", VLC_VAR_MUTEX );
     var_Get( p_object->p_libvlc_global, "avcodec", &lockval );
     vlc_mutex_lock( lockval.p_address );
 

modules/codec/ffmpeg/video.c

@@ -217,6 +217,7 @@ int E_(InitVideoDec)( decoder_t *p_dec, AVCodecContext *p_context,
     vlc_value_t lockval;
     vlc_value_t val;
 
+    var_Create( p_object->p_libvlc_global, "avcodec", VLC_VAR_MUTEX );
     var_Get( p_dec->p_libvlc_global, "avcodec", &lockval );
 
     /* Allocate the memory needed to store the decoder's structure */