Question regarding car-audio-1MB-trunc.mp4 about js_mse_eme HOT 8 CLOSED

Hi, where or which test specifically are you referring to?

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It wasn't really specific to a test, it looks like the content is used in a number of places.

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It's used in multiple places, so the expected behavior would depend on the test.

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Reverse engineering it... it looks like it's supposed to take the trun box, and determine how many full samples it has based on the mdat size and then modify the duration of the segment accordingly. Could you confirm that?

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The primary reason to truncate this audio file is to have it be ~1MB, so I don't think much work was done or considered besides truncating the file, but it's true that we could have modify the duration accordingly.

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Ah ok, interesting point about the ~1mb. In general is supporting truncated content like this part of any YouTube certification? Like if network drops prior to a segment completing the download, will the YouTube player append to the buffer whatever it has obtained?

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There's no specific requirement regarding supporting truncated content, but there are requirements on network stack, please check our technical requirement for more details. The YouTube player should append to the buffer whatever it has obtained.

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Thank you for your help @jiaqzhao

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