Hello,
I am currently developing a live streaming application using AVPlayer to play LL-HLS (Low-Latency HLS) content.
During our testing phase, we consistently encountered the following error in the logs:
- CoreMediaErrorDomain Code=-15517
The challenge we are facing is that the error description is quite vague. It only provides cryptic messages such as "Key not found" or "No value information," which makes it extremely difficult to identify the root cause or perform a deep-dive analysis.
I have searched through the official Apple Developer documentation and technical notes, but I couldn’t find any specific reference to what Code -15517 signifies in the context of LL-HLS or CoreMedia.
Regarding this issue, I have the following questions:
-
What is the specific meaning of this error code (-15517)? Does it relate to missing tags in the HLS manifest, or is it an internal state issue within the AVPlayer stack?
-
Specifically, I would like to know if this is a critical error that disrupts playback, or if it is just a warning that can be safely ignored.
-
Is there any additional logging or debugging tool you would recommend to further investigate "Key not found" issues in LL-HLS?
Any insights or guidance from the community or Apple engineers would be greatly appreciated.
Thank you in advance for your help.
