Determine Sync metadata for samples from libavformat / libavcodec without decoding

vade / FFMPEGMediaExtension

Use macOS Sequia's new Media Extensions to allow playback of FFMPEG supported media via AVFoundation

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Determine Sync metadata for samples from libavformat / libavcodec without decoding #2

Open vade opened 1 month ago

vade commented 1 month ago

It seems like our Media Format Extension is super close, but we need to understand how to provide the MESampleCursor implementation with some metadata about key frame, sync and dependencies

[x] AVSampleCursorSyncInfo
[x] AVSampleCursorDependencyInfo
[ ] MEHEVCDependencyInfo
[ ] decodeTimeOfLastSampleReachableByForwardSteppingThatIsAlreadyLoadedByByteSource
[ ] samplesWithEarlierDTSsMayHaveLaterPTSsThanCursor
[ ] samplesWithLaterDTSsMayHaveEarlierPTSsThanCursor

vade commented 1 month ago

We may also need to implement all of the cursor delivery methods too - eep

See MESampleCursors Obj-C header for inline docs