msmpeg4: Add ff_ prefix to nonstatic symbols

[ffmpeg] / libavcodec / bitstream_filter.c

diff --git a/libavcodec/bitstream_filter.c b/libavcodec/bitstream_filter.c
index 97fbd776d148232d3476023ca5b31f06af918f98..ee56174b2c9f11a616bce6a330e6f9e6422cc3ae 100644 (file)
--- a/libavcodec/bitstream_filter.c
+++ b/libavcodec/bitstream_filter.c
@@ -1,26 +1,31 @@
 /*
  * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #include "avcodec.h"
 
-AVBitStreamFilter *first_bitstream_filter= NULL;
+static AVBitStreamFilter *first_bitstream_filter= NULL;
+
+AVBitStreamFilter *av_bitstream_filter_next(AVBitStreamFilter *f){
+    if(f) return f->next;
+    else  return first_bitstream_filter;
+}
 
 void av_register_bitstream_filter(AVBitStreamFilter *bsf){
     bsf->next = first_bitstream_filter;
@@ -34,7 +39,7 @@ AVBitStreamFilterContext *av_bitstream_filter_init(const char *name){
         if(!strcmp(name, bsf->name)){
             AVBitStreamFilterContext *bsfc= av_mallocz(sizeof(AVBitStreamFilterContext));
             bsfc->filter= bsf;
-            bsfc->priv_data= av_mallocz(bsf->priv_data_size);
+            bsfc->priv_data = bsf->priv_data_size ? av_mallocz(bsf->priv_data_size) : NULL;
             return bsfc;
         }
         bsf= bsf->next;