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AviSynth+ 3.6.0
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@qyot27 qyot27 released this 20 May 21:59
· 836 commits to master since this release
v3.6.0
e08d7c8
  • Added predefined macros for ARM processors. Tested on Raspberry Pi 4B.
  • Added support for disabling the Intel SIMD intrinsics. Gets automatically disabled on non-x86 targets.
  • Added submodule to allow macOS 10.13 and 10.14 to build AviSynth+ with the native Clang compiler
  • Fixed some warnings on GCC (wangqr)
  • Implemented GetNumPhysicalCPUs on Linux and macOS (wangqr)
  • New function:
  SetMaxCPU(string feature)

  string "feature"

  "" or "none" for zero SIMD support, no processor flags are reported
  "mmx", "sse", "sse2", "sse3", "ssse3", "sse4" or "sse4.1", "sse4.2", "avx, "avx2"

  parameter is case insensitive.
  Note: "avx2" triggers FMA3 flag as well.

  Processor options w/o any modifier will limit the CPU flag report to at most the processor level.
  When "feature" is ended by '+', relevant processor feature flag will be switched on
  When "feature" is ended by '-', relevant processor feature flag will be removed
  Multiple options can be put in a comma separated list. They will evaluated in that order.

  Examples:
      SetMaxCPU("SSE2") reports at most SSE2 processor (even if AVX2 is available)
      SetMaxCPU("avx,sse4.1-") limits to avx2 but explicitely removes reporting sse4.1 support
      SetMaxCPU("C,avx2+") limits to plain C, then switches on AVX2-only support
  • Script array for NEW_AVSVALUE define are working again. (default in Linux build - experimental)
  • Fix: Mix/Max Runtime function 32bit float chroma: return -0.5..0.5 range (was: 0..1 range)
  • AviSynth+ enhancements by Nekopanda (Neo fork)
  • Allow multiple prefetchers (MT) (mentioned earlier)
  • Multithreading and deadlock fixes for ScriptClip
    (originally I intended to pull only Neo changes which were fixing an old AVS+ bug,
    namely ScriptClip and multithreading. But I was not able to do that without pulling
    nearly everything from Neo)
  • Caching enhancements.
    SetCacheMode(0) or SetCacheMode(CACHE_FAST_START) start up time and size balanced mode
    SetCacheMode(1) or SetCacheMode(CACHE_OPTIMAL_SIZE) slow start up but optimal speed and cache size
    Latter can do wonders especially at really low memory environment
  • ScriptClip and variable stability in multithreading.
  • UseVar, special filter, opens a clean variable environment in which only the
    variables in the parameter list can be seen.
  • "escaped" string constants: with e prefix right before the quotation mask
    n"Hello \n" will store actual LF (10) control character into the string
    \n \r \t \0 \a \f \ and " are converted
  • Introduce function objects into scripts
    Functions can appear as standard Avisynth variables and parameters (AVSValue type='n')
    https://github.com/nekopanda/AviSynthPlus/wiki/Language-New-Features
    Even with variable capture [] (like in GRuntT args)
  • Filter graph. Switch it on by putting SetGraphAnalysis(true) at the beginning of the script.
    Dump to text file with DumpFilterGraph. E.g. DumpFilterGraph("graph.txt", mode=2)
  • Frame properties (still from Neo!)
    (experimental, we have planned it in Avs+, probably we'll try to follow the VapourSynth methods(?))
  • Fix: Multithreading enhancements and fixes (Nekopanda, from Neo fork)
  • Fix old ScriptClip (runtime filters) issue
    In this example "current_frame" variable was not seen by YDifferenceFromPrevious scripted within SubTitle
    resulting in "ERROR: Plane Difference: This filter can only be used within run-time filters" message
    • Now this script finally works:
  SetLogParams("log.txt", LOG_DEBUG)
  ColorBars(width=640, height=480, pixel_type="yv12")
  ScriptClip(last, "Subtitle(String(YDifferenceFromPrevious))")
  Prefetch(4)
  • Fix deadlock of ScriptClip on MT
  • MT improvement

    • Allow multiple Prefetchers

    • Add argument to Prefetch to change # of prefetch frames without changing # of threads
      ex. Prefetch (clip c, int threads, int "frames")

    • In the original Plus, you could use only one Prefetch, but you can use any number of CUDA versions.
      Also, an argument has been added to specify the number of frames to prefetch.
      Prefetch (1,4) # Make 1 thread stand and prefetch 4 frames
      By doing so, flexible parallelization configuration is possible, such as pipeline parallelization.

      threads
      Number of threads. If it is 0, it passes without doing anything.

      frames
      Number of frames to prefetch.
      Again, if it is 0, it passes without doing anything.

  • Fix: BuildPixelType: chroma subsampling of sample clip was ignored.
  • POSIX: better behaviour under non-Windows because of having multiple sized fixed fonts, not only a single size=20 one.
    e.g. MessageClip(), Info(), Version(), ColorYUV "show", internal ApplyMessage
  • Text filter:
    • font types with
    • "Terminus" fixed fonts added (12-14-16-18-20-22-24-28-32, regular + bold)
    • "Info_h" good old 10x20 fixed font kept under this name
    • much more international unicode characters (1354), use utf8=true under Windows
    • use fontname parameter (default "Terminus", other choice is "info_h")
    • use font_filename parameter (accepts BDF fonts at the moment - import is probably not too smart but worked for Terminus)
    • use size parameter (12 to 32, if no size is available, a smaller one is chosen but at least the smallest one)
    • new parameter: bold (default false)
  • Info() filter: when parameter "size" < 0, font is automatically enlarged over 640x480
    (POSIX limit: minimum size is 12, maximum size is 32 - limited by available fixed fonts)")
  • SIL OPEN FONT LICENSE added because of usage of Terminus fonts)
  • able to build w/o GDI and font rendering engine under Windows, so that text-overlay filters
    work like in POSIX version of AviSynth+ (mainly for my development test)
    Use with NO_WIN_GDI define.
  • Fix: ReplaceStr when the pattern string to be replaced is empty
  • New:
    Exist() to have bool utf8 parameter
    This is another function to have utf8 option:
    Usage: b = Exist("Здравствуй.mkv",utf8=true). Avs file is saved as utf8 w/o BOM
  • Fix: broken Exist for directories (regression appeared in 3.5.0)
  • Fix: ColorYUV: really disable variable search when parameter "conditional" is false
  • Development:
    ScriptEnvironment::VSprintf: parameter (void *) is changed back to va_list.
    May affect C interface (avs_vsprintf) and CPP interface (ScriptEnvironment::VSprintf)
  • Enhanced: Planar RGB to YUV 444 10-14 bits: more precision (32 bit float internally)
  • Enhanced: Planar RGB to YUV 444 10-16 bits: AVX2 (speed improvement)
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