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AVContentKeySession reuse
Context We develop an iOS/Apple TV app that allows to play HLS+FP Live streams (custom playback UI), some of which use the same FairPlay content key id. All FairPlay content keys are requested to the same content key server. Implementation Despite Apple documentation warning to not reuse AVContentKeySessions, we use only one AVContentKeySession for all channels which allows the system to reuse the content key when a content key id is met again. As seen in another thread, people seems to think this is OK. Issue When reusing the AVContentKeySession and the user quickly tunes channels multiple times (up to 2 or 3 times per second using gestures), an inconsistency may occur where the content key request for a previous streams is asked to the delegate after a new stream is already being prepared and its AVURLAsset already assigned as the content key session AVContentKeyRecipient. Note that the previous content key recipient is removed before the new one is added. We also have been reported for crashes (though I haven't experienced it myself) when performing multiple channels tunings which makes us think that the AVContentKeySession should definitely not been reused. Note: On the other hand if a new AVContentKeySession is used for each stream, the system systematically requests a content key even if previous streams have used the same content key id. In this case, neither the crash nor the inconsistency issue are observed but it dramatically increases the number of calls to the content key server. Questions Should AVContentKeySessions definitely not be reused? Otherwise, how to handle the inconsistency issue described above?
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413
Feb ’25
Vibrancy effect not applied to context menu UIImages rendered in template mode
Our Apple TV provides UIImages with renderingMode forced to .alwaysTemplate (the images are also configured with "Render As" to "Template image" in the Asset catalog) to UIActions as UIMenuElement when building a UICollectionView UIContextMenuConfiguration. Problem: these images are not displayed with vibrancy effect by the system. The issue does not occur with system images (SVG from SF Catalog). Here is a screenshot showing the issue with custom images ("Trailer" and "Remove from favourites"): I don't know the underlying implementation of the context menu items image but UIImageView already implements the tintColorDidChange() method and the vibrancy should work if the UIImage is rendered as template. According to my tests, the vibrancy is correctly applied when using Symbols sets instead of Images sets but I understand that custom images rendered as template should support it as-well, shouldn't they?
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171
Mar ’25
AVPlayer periodic time observer stops notifying when switching back from AirPlay to local playback
The app registers a periodic time observer to the AVPlayer when the playback starts and it works fine. When switching to AirPlay during playback, the periodic time observation continues working as expected. However, when switching back to local playback, the periodic time observer does not fire anymore until a seek is performed. The app removes the periodic time observer only when the playback stops. I can see that when switching back to local playback, the timeControlStatus successively changes to .waitingToPlayAtSpecifiedRate (reason: .evaluatingBufferingRate) then to .waitingToPlayAtSpecifiedRate (reason: .toMinimizeStalls) and finally to .playing But the time observation does not work anymore. Also, the issue is systematic with Live and VOD streams providing a program date (with HLS property #EXT-X-PROGRAM-DATE-TIME), with or without any DRM, and is never reproduced with other VOD streams.
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107
Apr ’25
Server-to-server notification received 2 days after subscription
One of our customers subscribed to a monthly plan on August 16 but the server-to-server notification seems to have been sent on August 18. What could be the reasons for such a delay between the purchase and the server-to-server notification which are usually sent right after the purchase? The receipt sent along with the notification seems to confirm that the receipt has only been created 2 days after the purchase. Here is an extract: { "environment": "Production", "receipt": { "receipt_type": "Production", "bundle_id": "fr.gaumontvideo.gaumontclassique", "application_version": "613", "receipt_creation_date": "2025-08-18 13:00:16 Etc/GMT", "receipt_creation_date_ms": "1755522016000", "receipt_creation_date_pst": "2025-08-18 06:00:16 America/Los_Angeles", "request_date": "2025-08-25 13:08:27 Etc/GMT", "request_date_ms": "1756127307346", "request_date_pst": "2025-08-25 06:08:27 America/Los_Angeles", "original_purchase_date": "2022-05-11 06:14:37 Etc/GMT", "original_purchase_date_ms": "1652249677000", "original_purchase_date_pst": "2022-05-10 23:14:37 America/Los_Angeles", "original_application_version": "265", "in_app": [ { "quantity": "1", "product_id": "fr.gaumontvideo.gaumontclassique.subscription.monthly.apple", "transaction_id": "270002386706194", "original_transaction_id": "270002386706194", "purchase_date": "2025-08-16 08:02:06 Etc/GMT", "purchase_date_ms": "1755331326000", "purchase_date_pst": "2025-08-16 01:02:06 America/Los_Angeles", "original_purchase_date": "2025-08-16 08:02:08 Etc/GMT", "original_purchase_date_ms": "1755331328000", "original_purchase_date_pst": "2025-08-16 01:02:08 America/Los_Angeles", "expires_date": "2025-09-16 08:02:06 Etc/GMT", "expires_date_ms": "1758009726000", "expires_date_pst": "2025-09-16 01:02:06 America/Los_Angeles" } }
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124
Aug ’25