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How do I use AVAssetWriter to encode 4:4:4 HEVC video?


AvFoundation - How to connect AVCaptureSession and AVAssetWriter?Grey squared artifacts after HEVC 10-bit encoding using FFmpeg's NVENC encoderOutput Video Size Huge Using HEVC Encoder on iOSHow do I specify the HEVC codec in the HTML5 video source type attribute?Encode HEVC/H.265/HDR Video for YouTube from 10bit Pro-Res using FFmpegHow to convert HEVC videos from Photos to h264 on iOS?ffmpeg command x265 param option for android deviceAVAssetWriter codec type hevcMediaFoundation HEVC H265 encodingHEVC Quality in AVFoundation is poor






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0















I'm using AVAssetWriter to encode a HEVC video, but I don't want chroma subsampling. Is this supported?



This video will not need to play in real-time; it will be used only for transcoding.



iOS has a way of specifying the profile and level, AVVideoProfileLevelKey, but the only option in the documentation for HEVC is auto level.










share|improve this question






























    0















    I'm using AVAssetWriter to encode a HEVC video, but I don't want chroma subsampling. Is this supported?



    This video will not need to play in real-time; it will be used only for transcoding.



    iOS has a way of specifying the profile and level, AVVideoProfileLevelKey, but the only option in the documentation for HEVC is auto level.










    share|improve this question


























      0












      0








      0








      I'm using AVAssetWriter to encode a HEVC video, but I don't want chroma subsampling. Is this supported?



      This video will not need to play in real-time; it will be used only for transcoding.



      iOS has a way of specifying the profile and level, AVVideoProfileLevelKey, but the only option in the documentation for HEVC is auto level.










      share|improve this question














      I'm using AVAssetWriter to encode a HEVC video, but I don't want chroma subsampling. Is this supported?



      This video will not need to play in real-time; it will be used only for transcoding.



      iOS has a way of specifying the profile and level, AVVideoProfileLevelKey, but the only option in the documentation for HEVC is auto level.







      iphone resolution video-encoding avassetwriter hevc






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Mar 28 at 4:40









      Vaddadi KartickVaddadi Kartick

      1,6855 gold badges25 silver badges37 bronze badges




      1,6855 gold badges25 silver badges37 bronze badges

























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