Does IMFExtendedDRMTypeSupport::IsTypeSupportedEx and IMFMediaEngine::CanPlayType supported on ARM64?

[cjw1115]

I use those two APIs to query H264 codec capability on ARM64 device, both of them report "not supported". But H264 video can be played by Media Player and Movie&TV on that device, looks API's results are not accurate.

• IMFExtendedDRMTypeSupport::IsTypeSupportedEx
• IMFMediaEngine::CanPlayType

Queried results:

IMFExtendedDRMTypeSupport::IsTypeSupportedEx:
PROBABLY        : video/mp4; codecs="hvc1";features="ext-profile=dvhe.05,decode-bpp=8,decode-res-x=1920,decode-res-y=1080,decode-bitrate=10000000,decode-fps=30"
NOT_SUPPORTED   : video/mp4; codecs="avc1.42E01E";features="decode-bpp=8,decode-res-x=1920,decode-res-y=1080,decode-bitrate=10000000,decode-fps=30"
NOT_SUPPORTED   : video/mp4; codecs="avc1.640033";features="decode-bpp=8,decode-res-x=1920,decode-res-y=1080,decode-bitrate=10000000,decode-fps=30"
================================================
IMFMediaEngine::CanPlayType:
PROBABLY        : video/mp4; codecs="hvc1";features="ext-profile=dvhe.05,decode-bpp=8,decode-res-x=1920,decode-res-y=1080,decode-bitrate=10000000,decode-fps=30"
NOT_SUPPORTED   : video/mp4; codecs="avc1.42E01E";features="decode-bpp=8,decode-res-x=1920,decode-res-y=1080,decode-bitrate=10000000,decode-fps=30"
NOT_SUPPORTED   : video/mp4; codecs="avc1.640033";features="decode-bpp=8,decode-res-x=1920,decode-res-y=1080,decode-bitrate=10000000,decode-fps=30" 

Query for HEVC has no such problem.

Test code https://github.com/cjw1115/windows-media-capability/blob/main/MediaCapability/main.cpp

Test device:

• Surface Pro 9 Microsoft SQ3
• Windows 11 Pro 22H2 22621.1992

[cjrog]

Closing this issue as we have an internal work item from Dolby tracking this investigation.