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ffdshow DirectShow und Video Codec


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geschrieben 09. April 2012 - 13:21

ffdshow 1.2.4422
*Windows XP, Vista, 7 (32/64-Bit)*

ffdshow is an advanced DirectShow filter and VFW codec that supports many audio and video formats. For example: H.264, MPEG-4, MPEG-2, H.263, VP3, VP6, Theora, MJPEG, SVQ3, MP3, AC3, DTS, E-AC3, AAC, and Vorbis.

What is ffdshow tryouts?:

ffdshow tryouts is a DirectShow and Video for Windows codec with support for a wide range of audio and video formats, such as Xvid, DivX, and H.264. It includes a powerful filter set that can enhance the video quality - with filters for resizing, deinterlacing, and displaying subtitles - as well as audio quality through normalization, down-/upmixing, and resampling.

ffdshow + X = ffdshow tryouts:

The ffdshow tryouts project is a fork of the original ffdshow project. This fork was created by a group of members at Doom9.org. The last modification to the source code of the original project was done back in May 2006. The ffdshow tryouts project has continued where the original project stopped: Numerous bugs have been fixed, lots of code (that ffdshow borrows from the FFmpeg and Libav projects) has been updated, new features have been added as well as support for new formats.



Changelog:

Bugfixes:

  • 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.

Updates:

  • 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


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