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Code Issues Releases Activity

avformat/mux: Don't call ff_toupper4() unnecessarily

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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2022-10-23 14:42:24 +02:00
parent 495d738b1b
commit 5da8b522c8
1 changed files with 2 additions and 1 deletions
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3
libavformat/mux.c
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@@ -148,6 +148,7 @@ static int validate_codec_tag(AVFormatContext *s, AVStream *st)
{ {
const AVCodecTag *avctag; const AVCodecTag *avctag;
enum AVCodecID id = AV_CODEC_ID_NONE; enum AVCodecID id = AV_CODEC_ID_NONE;
unsigned uppercase_tag = ff_toupper4(st->codecpar->codec_tag);
int64_t tag = -1; 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++) { for (int n = 0; s->oformat->codec_tag[n]; n++) {
avctag = s->oformat->codec_tag[n]; avctag = s->oformat->codec_tag[n];
while (avctag->id != AV_CODEC_ID_NONE) { 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; id = avctag->id;
if (id == st->codecpar->codec_id) if (id == st->codecpar->codec_id)
return 1; return 1;