Chromaprint 1.6.1

• Fixed a heap buffer overflow when decoding a fingerprint that has extra data after the encoded values. Applications that decode fingerprints from untrusted sources should update.
• Fixed building against FFmpeg 4.x, which had not compiled since the channel layout API changed in 5.1
• Audio can now be fed in buffers that do not end on a frame boundary; previously a partial frame at the end of a call was dropped
• Fixed an implicit integer conversion warning on LLVM
• Fixed installing to absolute paths
• Build fpcalc against the system FFmpeg in CI