Version history for FFDSHOW

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Changes for Beta 6 - rev. 3154 (20091209) Beta 7

Bugfixes
Various H.264 and MPEG-2 seeking issues fixed
Several memory leak fixes
Subtitle fixes:
Don't show closed caption if "Subtitles" is not checked
Non-DVD subtitles: check if "Subtitles" is checked before showing subtitles
Setting "Maintain outside text inside screen" was not always applied correctly
Subtitle file could not be disabled during DVD playback
Duration of SSA move tags was randomly applied
Various fixes to alignment, line spacing, movement and positioning of ASS, SSA and SRT subtitles
Several crash fixes
Fixes in the Audio mixer and LFE crossover filter:
Center and LFE were too loud when downmixing 5.1->2ch
If the original sound had LFE channel, it was overwritten
If the center channel existed, left and right channels were ignored
Several MLP/TrueHD/LPCM decoding fixes
Playing a CSS-protected DVD using MPC or MPC-HC caused a crash in certain scenarios
Fixed DVD menu positioning and freeze issue
Fixed several crashes in WMP11 and Media Center
ffdshow.ax failed to register when a registry key was missing
Removed black lines in Perspective Correction filter
ffdshow would crash when using the Grab filter and the Resize filter with aspect ratio correction
Many fixes across multiple ffdshow components including OSD, deinterlacing, remote API, DVD and MPEG-2 playback
New and improved features
New multi-threaded H.264 decoder: ffmpeg-mt
DTS-HD and Dolby TrueHD bitstreaming support for the ATI Radeon HD5000 series, ASUS Xonar sound cards and Intel Clarkdale CPUs
New color space converters:
Supported input color spaces: progressive YV12, progressive NV12, YV16, YUY2
Supported output color spaces: RGB24, RGB32
High quality chroma upscaling
Added dithering to reduce "banding"
Support for color primary parameters such as ITU-R BT.601/709, input and output levels
RGB conversion done in 11-bit or higher
Significant improvements in YV12 -> YUY2, YUY2 -> RGB, and YV12 -> RGB conversion performance
Requires SSE2-capable CPU; for better performance multi-core CPU recommended
New RGB conversion options:
Output levels ("Computer monitor" or "TV/Projector")
YCbCr specification "Auto" (uses H.264's VUI or width > 1024: BT.709, width <= 1024: BT.601)
Various improvements in the Subtitle filter:
Improved rendering quality, memory usage and performance
General code cleanup
SSA/ASS subtitles: better compatibility (support for position & move tags), better calculation of line wrapping, new dialog to configure ASS specific options. Also support added for ASS tags within SRT subtitles (SubViewer)
FFDShowAPI: .NET wrapper around FFDShowRemoteAPI allows integration of ffdshow with third-party applications
FFDShowRemoteAPI:
Improved subtitle/audio streams detection; now compatible with most filters handling the IAMStreamSelect interface
New command to disable FF/RW OSD
When using absolute positioning, x and y coordinates are now representing pixels instead of percentages
Added new parameter to determine the duration in which a message will be displayed
OSD settings are now based on the current ffdshow preset; this allows turning OSD on/off using the "Automatic preset loading" mechanism
Buffered video RAM access improves video memory access in certain scenarios
AviSynth filter now uses AviSynth's frames for buffering which improves performance and reduces the filter's memory usage
"Max. amplification" in the Normalization filter will only be applied after pressing "Apply"
Better handling of DVD menus
Improved autocrop algorithm
Added RealVideo 8 (RV30) support
Added soft telecine detection
Added several new preset autoload conditions
libavcodec is now used by default to decode Theora videos
libavcodec is now used as Dolby TrueHD decoder instead of MLP
Various updates to libavcodec