diff options
| -rw-r--r-- | libavformat/mux.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavformat/mux.c b/libavformat/mux.c index 5d89458f82..a7517dae0a 100644 --- a/libavformat/mux.c +++ b/libavformat/mux.c @@ -148,6 +148,7 @@ static int validate_codec_tag(AVFormatContext *s, AVStream *st) { const AVCodecTag *avctag; enum AVCodecID id = AV_CODEC_ID_NONE; + unsigned uppercase_tag = ff_toupper4(st->codecpar->codec_tag); int64_t tag = -1; /** @@ -159,7 +160,7 @@ static int validate_codec_tag(AVFormatContext *s, AVStream *st) for (int n = 0; s->oformat->codec_tag[n]; n++) { avctag = s->oformat->codec_tag[n]; while (avctag->id != AV_CODEC_ID_NONE) { - if (ff_toupper4(avctag->tag) == ff_toupper4(st->codecpar->codec_tag)) { + if (ff_toupper4(avctag->tag) == uppercase_tag) { id = avctag->id; if (id == st->codecpar->codec_id) return 1; |