Changelog for version 1.2.4422


  • Lots of updates for libavcodec that bring bug fixes, performance enhancements, and security fixes.
  • Disable “Detect soft telecine and average frame durations” if 3:2 pulldown is being applied in AviSynth filter.
  • IAMStreamSelect: fix duplicated subtitle list in case of multiple ffdshow instances
  • If a matroska container had hidden leading chapter and Haali's splitter was used and tray icon was right-clicked, ffdshow crashed.
  • Various fixes regarding input mediatype handling, strides, and pin re-connection.
  • Various fixes regarding H.264 SPS parsing
  • Fixed decoding of 96khz 32bit audio with libavcodec
  • Fixed decoding of AAC audio with libavcodec when extradata is missing
  • Better handling of non-mod4 resolutions
  • Workaround for freeze in Powerpoint 2010
  • AC3 encoder was producing improper bitstream when connected to file writer filter
  • Various fixes for audio bitstreaming

New and improved features

  • Support for H.264 10-bit 4:2:0/4:2:2/4:4:4/RGB
  • Support for H.264 8-bit 4:2:2/4:4:4/RGB, 4:2:0 was already supported
  • Support for various 10-bit and 16-bit colorspaces
  • Optimized YV12 to NV12 conversion
  • Enabled high quality RGB32 conversion by default
  • Added option to select a preferred output colorspace
  • Added Intel QuickSync decoder. This provides hardware acceleration decoding of H.264, VC-1 and MPEG-2. Requires the integrated GPU of Intel Sandy Bridge processors.
  • Added DXVA video filter for hardware accelerated decoding. Supports H.264 and VC-1 video. Also includes subtitle support.
  • Various additions to the application blacklist and whitelist
  • Added support for Blu-ray PGS subtitles
  • Removed support for USF subtitles
  • Various improvements for the handling of ASS/SSA subtitles. More tags are supported now, but not yet all of them.
  • Various improvements for the rendering of text-based subtitles
  • By default now only subtitle files are shown that match the video filename. This behavior can be adjusted through an option on the “Try, dialog & Paths” page in ffdshow settings.
  • Created new format option in ffdshow audio decoder for the QT PCM variants (such as TWOS). They were previously part if the Uncompressed audio option.
  • ffmpeg-mt has been merged into libavcodec
  • Multi-threaded decoding is now used by default for H.264, MPEG-1/2, FFV1, and DV video.
  • Added decoding support for Indeo 4 and Indeo 5 video
  • Floating point output for libavcodec AAC, AC3, E-AC3, DTS, Vorbis, and Nellymoser decoders.
  • Added option to disable jitter correction for audio decoder
  • Improved performance of Deband filter
  • Removed some encoders for which the interface that ffdshow provided was outdated and unmaintained, such as Xvid and H.264. You should use the official codecs instead.
  • Removed some encoders that were considered obsolete or unstable.


  • Updated Boost library to v1.49
  • Updated zlib library to v1.2.6
  • Updated minilzo library to v2.06
  • Updated unrar library to v4.10
  • Updated libsamplerate to v0.1.8
  • Removed mp3lib
  • Removed xvidcore

Changelogs of previous versions

changelog.txt · Last modified: 2012/04/09 09:39 by fastplayer
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