use codec_tag for encoding too

Originally committed as revision 2125 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 12 insertions, 2 deletions

diff --git a/libavformat/asf.c b/libavformat/asf.c
index 1712f8f22d..c05f28e35e 100644
--- a/libavformat/asf.c
+++ b/libavformat/asf.c
@@ -411,13 +411,23 @@ static int asf_write_header1(AVFormatContext *s, int64_t file_size, int64_t data
         put_le16(pb, asf->streams[n].num);
         put_str16(pb, p ? p->name : enc->codec_name);
         put_le16(pb, 0); /* no parameters */
+        
+        
         /* id */
         if (enc->codec_type == CODEC_TYPE_AUDIO) {
             put_le16(pb, 2);
-            put_le16(pb, codec_get_tag(codec_wav_tags, enc->codec_id));
+            if(!enc->codec_tag)
+                enc->codec_tag = codec_get_tag(codec_wav_tags, enc->codec_id);
+            if(!enc->codec_tag)
+                return -1;
+            put_le16(pb, enc->codec_tag);
         } else {
             put_le16(pb, 4);
-            put_le32(pb, codec_get_tag(codec_bmp_tags, enc->codec_id));
+            if(!enc->codec_tag)
+                enc->codec_tag = codec_get_tag(codec_bmp_tags, enc->codec_id);
+            if(!enc->codec_tag)
+                return -1;
+            put_le32(pb, enc->codec_tag);
         }
     }
     end_header(pb, hpos);