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• Revision 71379b87df : Changes to assembler for NASM on mac. fixes non-Apple nasm part of issue #755

  21 novembre 2014, par John Stark

  Changed Paths :
   Modify /third_party/x86inc/x86inc.asm

  
   Modify /vp9/common/x86/vp9_subpixel_8t_ssse3.asm

  
   Modify /vp9/encoder/x86/vp9_quantize_ssse3_x86_64.asm

  
   Modify /vp9/encoder/x86/vp9_subpel_variance.asm

  
  
  Changes to assembler for NASM on mac.

  fixes non-Apple nasm part of issue #755

  Change-Id : I11955d270c4ee55e3c00e99f568de01b95e7ea9a

• FFMPEG - Apple 720p30 Surround MP4 H.264 AAC stereo ; Dolby Digital

  10 décembre 2020, par Dean Van Greunen

  i would like the FFmpeg cli settings which will match this (this is a handbrake preset)

  


  

  


  Here is the presetting file, I dont understand what these would be for ffmpeg.

  


  {
    "AlignAVStart": false,
    "AudioCopyMask": [
      "copy:aac",
      "copy:ac3",
      "copy:dtshd",
      "copy:dts",
      "copy:mp3",
      "copy:truehd",
      "copy:flac",
      "copy:eac3"
    ],
    "AudioEncoderFallback": "ac3",
    "AudioLanguageList": [],
    "AudioList": [
      {
        "AudioBitrate": 160,
        "AudioCompressionLevel": 0.0,
        "AudioDitherMethod": null,
        "AudioEncoder": "av_aac",
        "AudioMixdown": "stereo",
        "AudioNormalizeMixLevel": false,
        "AudioSamplerate": "auto",
        "AudioTrackQualityEnable": false,
        "AudioTrackQuality": -1.0,
        "AudioTrackGainSlider": 0.0,
        "AudioTrackDRCSlider": 0.0
      },
      {
        "AudioBitrate": 640,
        "AudioCompressionLevel": 0.0,
        "AudioDitherMethod": null,
        "AudioEncoder": "copy:ac3",
        "AudioMixdown": "none",
        "AudioNormalizeMixLevel": false,
        "AudioSamplerate": "auto",
        "AudioTrackQualityEnable": false,
        "AudioTrackQuality": -1.0,
        "AudioTrackGainSlider": 0.0,
        "AudioTrackDRCSlider": 0.0
      }
    ],
    "AudioSecondaryEncoderMode": true,
    "AudioTrackSelectionBehavior": "first",
    "ChapterMarkers": true,
    "ChildrenArray": [],
    "Default": false,
    "FileFormat": "av_mp4",
    "Folder": false,
    "FolderOpen": false,
    "Mp4HttpOptimize": false,
    "Mp4iPodCompatible": false,
    "PictureAutoCrop": true,
    "PictureBottomCrop": 0,
    "PictureLeftCrop": 0,
    "PictureRightCrop": 0,
    "PictureTopCrop": 0,
    "PictureDARWidth": 0,
    "PictureDeblockPreset": "off",
    "PictureDeblockTune": "medium",
    "PictureDeblockCustom": "strength=strong:thresh=20:blocksize=8",
    "PictureDeinterlaceFilter": "decomb",
    "PictureCombDetectPreset": "default",
    "PictureCombDetectCustom": "",
    "PictureDeinterlacePreset": "default",
    "PictureDeinterlaceCustom": "",
    "PictureDenoiseCustom": "",
    "PictureDenoiseFilter": "off",
    "PictureDenoisePreset": "light",
    "PictureDenoiseTune": "none",
    "PictureSharpenCustom": "",
    "PictureSharpenFilter": "off",
    "PictureSharpenPreset": "medium",
    "PictureSharpenTune": "none",
    "PictureDetelecine": "off",
    "PictureDetelecineCustom": "",
    "PictureItuPAR": false,
    "PictureKeepRatio": true,
    "PictureLooseCrop": false,
    "PictureModulus": 2,
    "PicturePAR": "auto",
    "PicturePARWidth": 0,
    "PicturePARHeight": 0,
    "PictureRotate": null,
    "PictureWidth": 1280,
    "PictureHeight": 720,
    "PictureForceHeight": 0,
    "PictureForceWidth": 0,
    "PresetDescription": "H.264 video (up to 720p30), AAC stereo audio, and Dolby Digital (AC-3) surround audio, in an MP4 container. Compatible with Apple iPhone 4, 4S, and later; iPod touch 4th, 5th Generation and later; iPad 1st Generation, iPad 2, and later; Apple TV 2nd Generation and later.",
    "PresetName": "Apple 720p30 Surround",
    "Type": 0,
    "UsesPictureFilters": true,
    "UsesPictureSettings": 1,
    "SubtitleAddCC": false,
    "SubtitleAddForeignAudioSearch": true,
    "SubtitleAddForeignAudioSubtitle": false,
    "SubtitleBurnBehavior": "foreign",
    "SubtitleBurnBDSub": false,
    "SubtitleBurnDVDSub": false,
    "SubtitleLanguageList": [],
    "SubtitleTrackSelectionBehavior": "none",
    "VideoAvgBitrate": 3000,
    "VideoColorMatrixCode": 0,
    "VideoEncoder": "x264",
    "VideoFramerate": "30",
    "VideoFramerateMode": "pfr",
    "VideoGrayScale": false,
    "VideoScaler": "swscale",
    "VideoPreset": "medium",
    "VideoTune": "",
    "VideoProfile": "high",
    "VideoLevel": "3.1",
    "VideoOptionExtra": "",
    "VideoQualityType": 2,
    "VideoQualitySlider": 21.0,
    "VideoQSVDecode": false,
    "VideoQSVAsyncDepth": 4,
    "VideoTwoPass": true,
    "VideoTurboTwoPass": false,
    "x264Option": null,
    "x264UseAdvancedOptions": false
  },


  


• Convert 10bit Apple pro res 422 HQ video mov to png without changing color format using ffmpeg only 2 png created [closed]

  15 janvier 2024, par Mark Brady

  I am looking to convert a 'Formats : 10-Bit ProRes 422 (2K)' .MOV to PNGs, I saw this post and got the following information / questiosn.

  


  This is form this post form awhile ago.
Convert 10bit Apple pro res 422 HQ video mov to png without changing color format using ffmpeg

  


  I ran this command
ffmpeg -i "Hyper.mov" -vf fps=1 -pix_fmt rgba -sws_flags +accurate_rnd+bitexact+full_chroma_int "out-%04d.png" on a short mov in the format of Formats : 10-Bit ProRes 422 (2K)

  


  From this site, it is a hyper warp mov (effect), I want to convert into either pngs or a gif or a flipbook of 8x8 (which is prob to small to do it all, but maybe a few 8x8x) end goal is getting the effect in Roblox

  


  The mov is from this site
https://www.actionvfx.com/collections/free-blasters-stock-footage/8798

  


  The hyper one.

  


  When I did the command it only generated 2 images, perhaps the start frame and the end.

  


  Does anyone know why it only did 2 images ?

  


  [enter image description here](https://i.stack.imgur.com/REDDx.jpg)

  


  In the post I saw this, it has 'without changing color format ', which I do not know if I need that... just trying to get the effect mov into png or a flipbook

  


  Thanks

  


  Tried the above syntax and expecting it to generate a bunch of pngs, not just 2.