Video h26x bitrate management

Media Technologies Video
ftristani OP
Created May ’23
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Hi, I'm using VideoToolBox for h264 or HEVC video encoding. Thanks proper algorithm I used to change dynamically the video bitrate (by adjusting AverageBitrate and DataRateLimits)

When running application on iOS 16.4 and further, video bitrate is no more respected by video encoder. Obtained bitrate is generally 70% percent lower than expected value.

Is there a new setting to retrieve previous video encoder behaviour? Best regards

Replies  1
Boosts  0
Views  911
Participants  2
yel OP
May ’23

I encountered the same problem and tried the parameter kVTCompressionPropertyKey_ ConstantBitRate, but the system returned kVTPropertyNotSupportedErr. If you have any progress, please let me know.

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Video h26x bitrate management
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