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43 lines
1.6 KiB
Markdown
43 lines
1.6 KiB
Markdown
---
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Type: article
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Title: Apple VideoToolbox
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Project: HandBrake
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Project_URL: https://handbrake.fr/
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Project_Version: Latest
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Language: English
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Language_Code: en
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Authors: [ Bradley Sepos <bradley@bradleysepos.com> (BradleyS), Scott (s55) ]
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Copyright: 2019 HandBrake Team
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License: Creative Commons Attribution-ShareAlike 4.0 International
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License_Abbr: CC BY-SA 4.0
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License_URL: https://handbrake.fr/docs/license.html
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---
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Apple VideoToolbox
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==================
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## Supported hardware
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- Most 2015 and later Macs
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Please note, these are not hard limits. Hardware encoding via VideoToolbox *might* work on older series GPUs and older operating systems, but this is not officially supported.
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## Enabling support
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If your computer is supported you will see one or more of the following video encoders added to the encoder control on the `Video` tab.
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- H.264 (VideoToolbox)
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- H.265 (VideoToolbox)
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Choice of the underlying hardware encoder (AMD VCE or Intel QuickSync Video) is not available. The highest quality option will typically be chosen.
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## Performance
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Only video encoding is performed by the hardware encoder. Every stage prior to and after video encoding including decoding, filters, audio/video sync, audio encoding, muxing, etc., is performed by the CPU. As a result, it is normal to have high (even 100%) CPU utilisation during encodes.
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It is common, particularly on lower-end hardware, for the CPU to be a bottleneck for the hardware video encoder. To minimize this effect, disable any filters that you do not require.
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## Advanced options
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There are no advanced options available for VideoToolbox encoders.
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