-enum AVCodecID av_guess_codec(ff_const59 AVOutputFormat *fmt, const char *short_name,
- const char *filename, const char *mime_type,
- enum AVMediaType type);
+enum AVCodecID av_guess_codec(const AVOutputFormat *fmt, const char *short_name,
+ const char *filename, const char *mime_type,
+ enum AVMediaType type);