See: https://bugs.gentoo.org/show_bug.cgi?id=505196

Generated from: https://505196.bugs.gentoo.org/attachment.cgi?id=373958
- Split out the existing two patches already applied in the ebuild.
- Version check to keep compatibility with older ffmpeg.
diff -u k9copy-2.3.8-Source/src/import/k9avidecode.h k9copy-2.3.8-Source/src/import/k9avidecode.h
--- k9copy-2.3.8-Source/src/import/k9avidecode.h	2012-11-23 10:12:56.000000000 +0100
+++ k9copy-2.3.8-Source/src/import/k9avidecode.h	2014-03-31 07:47:35.119092120 +0100
@@ -40,7 +40,11 @@
 #else
 typedef int (*av_find_stream_info_t)(AVFormatContext *);
 #endif
+#if LIBAVCODEC_VERSION_MAJOR < 55
 typedef AVCodec* (*avcodec_find_decoder_t)(enum CodecID);
+#else
+typedef AVCodec* (*avcodec_find_decoder_t)(enum AVCodecID);
+#endif
 #if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(53, 8, 0)
 typedef int (*avcodec_open2_t)(AVCodecContext *, AVCodec *, AVDictionary **);
 #else