lavf: Use av_codec_get_tag2() in avformat_query_codec().

av_codec_get_tag() can return 0 both in case of error and success.
10 years ago · 57eecd9e4f
parent bcd7bf7eeb
commit 57eecd9e4f
1 changed files with 2 additions and 1 deletions
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@ -4107,10 +4107,11 @@ int avformat_query_codec(const AVOutputFormat *ofmt, enum AVCodecID codec_id,
                         int std_compliance)
 {
    if (ofmt) {
+        unsigned int codec_tag;
        if (ofmt->query_codec)
            return ofmt->query_codec(codec_id, std_compliance);
        else if (ofmt->codec_tag)
-            return !!av_codec_get_tag(ofmt->codec_tag, codec_id);
+            return !!av_codec_get_tag2(ofmt->codec_tag, codec_id, &codec_tag);
        else if (codec_id == ofmt->video_codec ||
                 codec_id == ofmt->audio_codec ||
                 codec_id == ofmt->subtitle_codec)