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Thema: LAV Filters – DirectShow-Source/Splitter+Decoder, Alternative zu ffdshow

  1. #11
    Erklär-Bär Avatar von LigH
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    Standard AW: LAV Filters – DirectShow-Source/Splitter+Decoder, Alternative zu ffdshow

    Wieder eine "stable"-Version:

    Zitat Zitat von nevcairiel
    LAV Filters 0.68
    Code:
    LAV Splitter
    - NEW: H.264 MVC 3D demuxing from MKV 3D, Blu-ray discs and Blu-ray SSIF files
    - Fixed: The bitdepth of DTS-HD MA streams is reported properly in the stream information
    
    LAV Video
    - NEW: H.264 MVC 3D decoding (requires madVR 0.90 or newer)
    - NEW: HEVC HDR streams export the HDR metadata to the video renderer (requires madVR 0.89.18 or newer)
    - NEW: VP9 DXVA2 Hardware Acceleration
    - NEW: Weston Three Field Deinterlacing filter (w3fdif)
    - NEW: Ability to choose which GPU is used for DXVA2-CopyBack decoding
    - Changed: Removed the CUVID HQ processing option, it is now automatically used when appropriate
    - Fixed: CUVID would crash when playing certain HEVC files
    - Fixed: Some pixel format conversions were much slower than expected
    - Fixed: Pixel Format changes mid-stream were not re-negotiated with the renderer in all cases
    - Fixed: Changes in the framerate due to software deinterlacing are properly reflected in the media type
    
    LAV Audio
    - Fixed: Increased PCM buffering to avoid stuttering with TrueHD on some audio devices
    Download: Installer (both x86/x64) -- Zips: 32-bit & 64-bit
    Download 3D Plugin: 32-bit & 64-bit

    H.264 MVC 3D Support

    This version introduces support for decoding H.264 MVC 3D streams, as found on 3D Blu-rays (or in MKVs created from those Blu-rays with MakeMKV).
    LAV Splitter supports reading H.264 MVC from Blu-rays directly, when opening a Blu-ray SSIF file, or from MKVs. Note that MVC in MPEG-TS which is not created Blu-ray compliant is not supported at this time.

    To enable decoding of the H.264 MVC extensions, an external decoder plugin is required, which the Installer will automatically download if the appropriate option is set, or which you can download manually from the links above (place in the same folder as LAVVideo.ax)
    LAV Video currently does not allow "processing" the 3D video in any way, it can only output it to a 3D aware video renderer - madVR 0.90 or later. In the future it might be possible to have LAV Video render the video as Side-by-Side, but not in this release.

    The interface to receive 3D video and accompanying metadata is documented in the developer info package, if other renderer developers want to support this.

    HEVC HDR support

    Also new in this release is the ability to export the HDR metadata from HEVC HDR streams. This metadata is automatically send to the video renderer, so it can render the video properly. This is available with madVR 0.89.18 or newer.
    LAV Video does not process the HDR information in any way, and any video renderer unaware of HDR will still render the typical "washed out" image.

    The interface for the HDR metadata is also documented in the developer information.

    DXVA2 VP9 Hardware Acceleration

    Late last year Microsoft published a specification on VP9 DXVA2 hardware acceleration. Shortly after, both Intel and NVIDIA started to support this in their hardware.
    This version of LAV Video enables using the hardware acceleration in the latest NVIDIA GPUs (GTX950/960), and recent Intel GPUs (Braswell and Skylake)

    Please note that only VP9 Profile 0 is supported, 4:2:0 8-bit.

    There is more!

    On top of all these features, LAV Video also added a new deinterlacer, Weston Three Field Deinterlacing Filter (w3fdif), which can achieve quality similar to YADIF at much higher speeds (simple on 32-bit, complex on 64-bit)
    For multi-GPU systems, you can now choose which GPU DXVA2-CopyBack should use for decoding. Please note that only GPUs with a connected display are available (Direct3D9 limitation)
    And of course there is also a list of stability and bug fixes that may not even have made the changelog.

    Enjoy one of the bigger LAV releases of the recent past, and have fun!

    PS:
    The download links have switched to HTTPS, if you're having trouble with access due to an old browser and/or OS (I'm looking at you, XP users), you can manually switch the URL back to HTTP if you must.

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  2. #12
    Erklär-Bär Avatar von LigH
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    Standard AW: LAV Filters – DirectShow-Source/Splitter+Decoder, Alternative zu ffdshow

    Diesmal mit mehr Unterstützung für HDR und HBD:

    Zitat Zitat von nevcairiel
    LAV Filters 0.69
    Code:
    LAV Splitter
    - NEW: Support for extracting HDR metadata from YouTube HDR VP9 streams
    - Fixed: Reading MKV files could crash when encountering tags for unknown or disabled streams
    
    LAV Video
    - NEW: Support for 10-bit UtVideo
    - NEW: MagicYUV decoding support
    - NEW: Experimental support for CineformHD decoding
    - Fixed: Converting 12-bit 4:4:4 YCbCr to RGB32 would result in a garbled image
    - Fixed: Decoding certain H.264 streams could drop a few frames at the start of playback
    
    LAV Audio
    - NEW: DTS Express (LBR) decoding support
    Download: Installer (both x86/x64) -- Zips: 32-bit & 64-bit

    Its been a long time since the last release, and some of these features have been in the nightly builds for a long time. Nevertheless, LAV Filters are far from dead, even if slowing down a bit as the list of important features still in need of development shrinks.

    YouTube HDR
    This version introduces support for YouTube HDR streams, which utilize VP9 Profile2 10-bit streams, and HDR metadata in the container.
    For this metadata to be properly passed to the video renderer, you'll need LAV Splitter and LAV Video, as well as a video renderer that can understand it - at this time only madVR.

    DTS Express support
    DTS Express was the last missing piece of full DTS support, and eventhough its only typically used for commentary tracks on Blu-rays and not primary audio tracks, its still noteworthy for people trying to archive and potentially transcode all the available audio.

    More!
    In addition to the major points listed above, there is a whole list of small fixes and improvements mainly on the side of FFmpeg that this build makes available to LAV Filters users.

    As always, please report any regressions or bugs with the appropriate information to fully analyze it, even better with a sample file to reproduce it!
    Thanks, and have fun.

    PS:
    I'll be on vacation in Australia all through January, so don't be alarmed when there is no responses.

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  3. #13
    Erklär-Bär Avatar von LigH
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    Standard AW: LAV Filters – DirectShow-Source/Splitter+Decoder, Alternative zu ffdshow

    Lange hat es gedauert – entsprechend umfassende Neuigkeiten gibt es, inklusive D3D11-Decodierung:

    Zitat Zitat von nevcairiel
    LAV Filters 0.71
    Code:
    General
    - LAV Filters now requires Windows Vista or newer, Windows XP is no longer supported
    
    LAV Splitter
    - NEW: Preliminary support for UHD Blu-ray parsing
    
    LAV Video
    - NEW: D3D11 hardware accelerated decoding (native mode with madVR, Copy-Back otherwise)
    - Fixed: HDR metadata was not properly communicated to madVR in DXVA2-Native mode
    - Fixed: Anamorphic WMV9/VC-1 videos were not being played back with the correct aspect ratio in all cases
    - Fixed: Changing certain settings while playback was paused could result in a deadlock
    - Fixed: Playing severly corrupted HEVC streams with hardware decoding could result in playback failing entirely, instead of skipping over the corruption
    
    LAV Audio
    - NEW: Basic support for AAC 960 streams (common in DVB radio streams)
    Download: Installer (both x86/x64) -- Zips: 32-bit & 64-bit

    Its been long overdue to release this, so I can start working on some new things without breaking the release!

    D3D11 Decoding

    The main motivation behind offering D3D11 decoding is the ability to be able to process the resulting image on the GPU without any loss - something that was not always possible on DXVA2.
    To be able to actually leverage this, you'll need a renderer which also supports D3D11 input from a decoder - currently this is only madVR. This allows full performance on-GPU decoding and processing without any quality loss.

    D3D11 also offers a Copy-Back mode, however it should probably be quite similar in performance then DXVA2.

    Note that the way you select Native/Copy-Back for D3D11 is different than DXVA2. D3D11 will use Native-mode when its set to "Automatic" device choice, and the renderer supports Native mode. If you select a specific device, that forces Copy-Back mode (because for Native to work, the renderer basically selects the device).

    There are still a few limitations on using D3D11-Native with madVR, most notably deinterlacing is not supported yet. This is a feature madVR will have to implement in the future.
    __

    Und letzten Juni gab es dies:

    Zitat Zitat von nevcairiel
    LAV Filters 0.70
    Code:
    General
    - Official LAV Filters builds require a SSE2 capable CPU
    
    LAV Splitter
    - Fixed: Certain MP4/MOV files didn't play or seek correctly in recent versions of LAV Splitter
    - Fixed: HEVC in MP4 without PTS timestamp is being signaled appropriately
    - Fixed: Closing RTSP streams did not properly call the TEARDOWN function
    
    LAV Video
    - NEW: CUVID support for VP9 8/10-bit and HEVC 10/12-bit decoding
    - NEW: DXVA2 support for VP9 10-bit decoding
    - Changed: Simplified the internal dataflow to reduce overhead and improve performance
    - Changed: Enabled P010 output to EVR on Windows 10 Creators Update
    - Fixed: Y416 output was incorrect (required by madVR 0.91.8 and newer)
    - Fixed: Parsing H.264 MVC SEI NALs could fail in some cases
    - Fixed: CUVID decoding could deinterlace progressive streams under certain circumstances, degrading the quality
    
    LAV Audio
    - Fixed: LATM AAC streams with Program Config Elements (PCE) (common in DVB-T2 broadcast) played with audible distortions
    - Fixed: Very short PCM audio streams didn't play properly
    Download: Installer (both x86/x64) -- Zips: 32-bit & 64-bit

    Its already been half a year again since the last release, so it was about time.

    NVIDIA finally released the updated NVDEC SDK (formerly CUVID), which allowed adding support for new codecs and proper 10/12-bit decoding without too much trouble, for those people that still cling to NVDEC/CUVID decoding.
    In addition to that, DXVA2 also supports VP9 10-bit decoding now - with the required hardware support of course.

    Overall I spend some time cleaning and optimizing LAV Video, which should lead to a small performance increase across the board - it does depend on the video and decoding mode however, so the improvements vary.

    Otherwise the same as every release, a bunch of fixes that didn't make the log, some in LAV and some inherited from FFmpeg.
    As always, please do report regressions, preferably with a sample file to reproduce them.
    Geändert von LigH (15. February 2018 um 19:46 Uhr)

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  4. #14
    Erklär-Bär Avatar von LigH
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    Standard AW: LAV Filters – DirectShow-Source/Splitter+Decoder, Alternative zu ffdshow

    Blu-ray-Besitzer aufgepasst:

    Zitat Zitat von nevcairiel
    LAV Filters 0.72
    Code:
    LAV Video
    - Changed: Enabled CineformHD decoding by default, since the decoder has much improved
    - Fixed: Decoding Matroska files with Linked Segments which used old x264 4:4:4 encodes could result in corruption
    
    LAV Audio
    - NEW: Blu-ray Dolby Digital Plus 7.1 decoding and bitstreaming support
    - NEW: LAV Audio will fallback to audio decoding if bitstreaming is not supported by the audio renderer/hardware
    - Fixed: DTS-HD HRA bitstreaming did not work properly with many A/V receivers
    - Fixed: TrueHD bitstreaming could result in drop-outs on high bitrate TrueHD+Atmos streams
    Download: Installer (both x86/x64) -- Zips: 32-bit & 64-bit

    Audio and Bitstreaming Improvements

    A lot of work went into this release for bitstreaming improvements, including doing a lot of research and reverse engineering to figure out how the TrueHD bitstreaming is really supposed to work, so that high bitrate streams (as found on UltraHD Blu-rays with Atmos) no longer cause drop-outs during playback.

    Some newer receivers also had trouble receiving DTS-HD HRA streams, which should hopefully be resolved as well - even though my own receiver accepted the previous format just fine, but testing by other users has yielded quite positive results.

    And last but not least, LAV Audio finally supports handling Dolby Digital Plus 7.1 as found on Blu-ray discs properly, both in decoding and bitstreaming. This format has not seen very wide use on Blu-ray discs, but the usage seems to be increasing lately.

    Outside of those improvements, LAV 0.72 of course comes with a newer version of FFmpeg.

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