HEVC Quality in AVFoundation is poorBitrate limitation on AVFoundation screen capture on OSX LionChange the bitrate of recordings made with AVFoundation on MacHow to encode picture to H264 use AVFoundation on Mac, not use x264AVFoundation Vs VideoToolbox - Hardware EncodingAVFoundation - Export and multi-pass encoding not very optimized?Output Video Size Huge Using HEVC Encoder on iOSGet Safari to prefer HEVC in HTML 5 video tagoptimize hevc_toolbox encoding to look like x265 encoding in ffmegMediaFoundation HEVC H265 encodingUsing ffmpeg to pipe Logitech C920 video to two outputs: re-encoded to RTMP stream and hardware-encoded to file
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HEVC Quality in AVFoundation is poor
Bitrate limitation on AVFoundation screen capture on OSX LionChange the bitrate of recordings made with AVFoundation on MacHow to encode picture to H264 use AVFoundation on Mac, not use x264AVFoundation Vs VideoToolbox - Hardware EncodingAVFoundation - Export and multi-pass encoding not very optimized?Output Video Size Huge Using HEVC Encoder on iOSGet Safari to prefer HEVC in HTML 5 video tagoptimize hevc_toolbox encoding to look like x265 encoding in ffmegMediaFoundation HEVC H265 encodingUsing ffmpeg to pipe Logitech C920 video to two outputs: re-encoded to RTMP stream and hardware-encoded to file
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;
I'm using AVFoundation with AVAssetWriter to create an HEVC using custom settings (as opposed to using AVAssetExportSession). I'm on an iMac without hardware acceleration.
I specify a bitrate using AVVideoAverageBitRateKey to be 60% of the bitrate of the H264 original video and turned on multiple passes. While the quality is acceptable, if I use ffmpeg to obtain a file of similar size and bitrate, the file encoded by ffmpeg is superior in detail to that encoded by AVFoundation.
I have tried various other settings but all appear to only be valid for H264, and there does not seem to be a way to vary the quality of HEVC with AVFoundation.
Does anyone have any suggestions on how to get AVFoundation to increase quality to match ffmpeg?
macos avfoundation hevc
asked Mar 25 at 2:40
Robert SalesasRobert Salesas
612
add a comment |
I'm using AVFoundation with AVAssetWriter to create an HEVC using custom settings (as opposed to using AVAssetExportSession). I'm on an iMac without hardware acceleration.
I specify a bitrate using AVVideoAverageBitRateKey to be 60% of the bitrate of the H264 original video and turned on multiple passes. While the quality is acceptable, if I use ffmpeg to obtain a file of similar size and bitrate, the file encoded by ffmpeg is superior in detail to that encoded by AVFoundation.
I have tried various other settings but all appear to only be valid for H264, and there does not seem to be a way to vary the quality of HEVC with AVFoundation.
Does anyone have any suggestions on how to get AVFoundation to increase quality to match ffmpeg?
macos avfoundation hevc
asked Mar 25 at 2:40
Robert SalesasRobert Salesas
612
add a comment |
I'm using AVFoundation with AVAssetWriter to create an HEVC using custom settings (as opposed to using AVAssetExportSession). I'm on an iMac without hardware acceleration.
I specify a bitrate using AVVideoAverageBitRateKey to be 60% of the bitrate of the H264 original video and turned on multiple passes. While the quality is acceptable, if I use ffmpeg to obtain a file of similar size and bitrate, the file encoded by ffmpeg is superior in detail to that encoded by AVFoundation.
I have tried various other settings but all appear to only be valid for H264, and there does not seem to be a way to vary the quality of HEVC with AVFoundation.
Does anyone have any suggestions on how to get AVFoundation to increase quality to match ffmpeg?
macos avfoundation hevc
asked Mar 25 at 2:40
Robert SalesasRobert Salesas
612
I'm using AVFoundation with AVAssetWriter to create an HEVC using custom settings (as opposed to using AVAssetExportSession). I'm on an iMac without hardware acceleration.
I specify a bitrate using AVVideoAverageBitRateKey to be 60% of the bitrate of the H264 original video and turned on multiple passes. While the quality is acceptable, if I use ffmpeg to obtain a file of similar size and bitrate, the file encoded by ffmpeg is superior in detail to that encoded by AVFoundation.
I have tried various other settings but all appear to only be valid for H264, and there does not seem to be a way to vary the quality of HEVC with AVFoundation.
Does anyone have any suggestions on how to get AVFoundation to increase quality to match ffmpeg?
macos avfoundation hevc
macos avfoundation hevc
asked Mar 25 at 2:40
Robert SalesasRobert Salesas
612
asked Mar 25 at 2:40
Robert SalesasRobert Salesas
612
asked Mar 25 at 2:40
Robert SalesasRobert Salesas
612
asked Mar 25 at 2:40
Robert SalesasRobert Salesas
612
asked Mar 25 at 2:40
Robert SalesasRobert Salesas
612
612
add a comment |
add a comment |
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