cosmetics, reindent, add empty lines

Originally committed as revision 18363 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/movenc.c

@@ -583,8 +583,10 @@ static const AVCodecTag codec_ipod_tags[] = {
 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
 {
     int tag = track->enc->codec_tag;
+
     if (!codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
         return 0;
+
     if      (track->enc->codec_id == CODEC_ID_H264)      tag = MKTAG('a','v','c','1');
     else if (track->enc->codec_id == CODEC_ID_AC3)       tag = MKTAG('a','c','-','3');
     else if (track->enc->codec_id == CODEC_ID_DIRAC)     tag = MKTAG('d','r','a','c');
@@ -630,6 +632,7 @@ static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
 {
     int tag = track->enc->codec_tag;
     int i;
+
     for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
         if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
             tag = mov_pix_fmt_tags[i].tag;
@@ -679,6 +682,7 @@ static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
             }
         }
     }
+
     return tag;
 }