#endif
#if LIBAVUTIL_VERSION_MAJOR < 51
+#define AVERROR_INVALIDDATA AVERROR(EINVAL) /**< Invalid data found when processing input */
#define AVERROR_IO AVERROR(EIO) /**< I/O error */
#define AVERROR_NOENT AVERROR(ENOENT) /**< No such file or directory. */
#define AVERROR_NOMEM AVERROR(ENOMEM) /**< not enough memory */
#endif
#define AVERROR_EOF AVERROR(EPIPE) /**< End of file. */
-#define AVERROR_INVALIDDATA AVERROR(EINVAL) /**< Invalid data found when processing input */
#define AVERROR_NOFMT AVERROR(EILSEQ) /**< unknown format */
#define AVERROR_NOTSUPP AVERROR(ENOSYS) /**< Operation not supported. */
#define AVERROR_PATCHWELCOME (-MKTAG('P','A','W','E')) /**< Not yet implemented in FFmpeg. Patches welcome. */
#if LIBAVUTIL_VERSION_MAJOR > 50
+#define AVERROR_INVALIDDATA (-MKTAG('I','N','D','A')) /**< Invalid data found when processing input */
#define AVERROR_NUMEXPECTED (-MKTAG('N','U','E','X')) /**< Number syntax expected in filename. */
#endif