movenc: change AV_LOG_INFO to AV_LOG_WARNING for some warnings

libavformat/movenc.c

@@ -711,7 +711,7 @@ static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
             if (!tag) { // if no mac fcc found, try with Microsoft tags
                 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
                 if (tag)
-                    av_log(s, AV_LOG_INFO, "Warning, using MS style video codec tag, "
+                    av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
                            "the file may be unplayable!\n");
             }
         } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
@@ -720,7 +720,7 @@ static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
                 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
                 if (ms_tag) {
                     tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
-                    av_log(s, AV_LOG_INFO, "Warning, using MS style audio codec tag, "
+                    av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
                            "the file may be unplayable!\n");
                 }
             }