Open Bug 1715283 Opened 3 years ago

Replace MEDIA_MP4_PARSE_SAMPLE_DESCRIPTION_ENTRIES_HAVE_MULTIPLE_CRYPTO telemetry probe with a probe that counts crypto data

Categories

(Core :: Audio/Video: Playback, task, P3)

Product:
Core
Component:
Audio/Video: Playback
Type:
task

Tracking

()

People

(Reporter: bryce, Unassigned)

References

(Depends on 1 open bug)

Details

MEDIA_MP4_PARSE_SAMPLE_DESCRIPTION_ENTRIES_HAVE_MULTIPLE_CRYPTO was introduced to test if we could encounter multiple sample description entries, each with crypto. It appears we can, though it is rare, per bug 1714125.

Bug 1714626 tracks implementing a more flexible and robust parsing to handle multiple sets of crypto information. Following (or as part of) that work we should update our telemetry to track not just if multiple crypto are present, but how many. It would also make sense to determine if when multiple crypto are present if

  • Those crypto are identical.
  • If they are not identical, what differs between them (scheme, key, etc.).
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