Download FLAC 1.3.4

After two years of silence, a new version of the Free Lossless Audio Codec, or FLAC, has appeared. This sound file format stores data without losing any information, as is the case with eg mp3, Ogg Vorbis and Opus. FLAC is available for various operating systems and usually requires an external program to serve as a user interface. In Windows, for example, this is possible with ExactAudioCopy and foobar2000. The changelog for this release shows the following changes and improvements:

FLAC 1.3.4

This releases mostly fixes (security related) bugs. When building with MSVC, using CMake is preferred, see the README under “Building with CMake” for more information. Building with MSVC using solution files is deprecated and these files will be removed in the future.

• General:
  • Fix 12 decoder bugs found by oss-fuzz, including CVE-2020-0499
  • Fix encoder bug CVE-2021-0561
  • Integrate oss fuzzers
  • Seeking fixes
  • Various fixes and improvements
• flac:
  • Various fixes and improvements
• build system:
  • CMake improvements
  • Fixes for MinGW and MSVC
  • Fix for clan
  • Fix for PowerPC
  • Fix for FreeBSD PowerPC
• testing/validation:
  • Add Windows target to CI, improve logging
  • CI improvements
• documentation:
  • Doxygen fixes
  • fix typos

FLAC 1.3.3

• General:
  • Fix CPU detection
  • Switch from unsigned types to uint32_t
  • CppCheck fixes
  • Improve SIMD decoding of 24 bit files
  • POWER* and POWER9 improvements
  • More tests.
• flac:
  • When converting to WAV, use WAVEFORMATEXTENSIBLE when bits per second is not 8 or 16
  • Fix –output-prefix with input-files in sub-directories
• build system:
  • Cmake support
  • Visual Studio updates
  • Fix for MSVC when UNICODE is enabled
  • Fix for OpenBSD/i386