avformat/rsd: make tag_buf string larger
av_get_codec_tag_string() uses more that 1 char for unprintable characters. (cherry picked from commit edbbb11488e1fce9b9703535936d2e1731e2e318)
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@ -70,7 +70,7 @@ static int rsd_read_header(AVFormatContext *s)
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codec->codec_tag = avio_rl32(pb);
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codec->codec_id = ff_codec_get_id(rsd_tags, codec->codec_tag);
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if (!codec->codec_id) {
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char tag_buf[5];
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char tag_buf[32];
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av_get_codec_tag_string(tag_buf, sizeof(tag_buf), codec->codec_tag);
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for (i=0; i < FF_ARRAY_ELEMS(rsd_unsupported_tags); i++) {
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