Open
Bug 1262851
Opened 9 years ago
Updated 2 years ago
MediaRecorder records wrong duration when frames are far apart
Categories
(Core :: Audio/Video: MediaStreamGraph, defect, P3)
Tracking
()
NEW
| Tracking | Status | |
|---|---|---|
| firefox47 | --- | unaffected |
| firefox48 | --- | affected |
People
(Reporter: pehrsons, Unassigned)
References
Details
Attachments
(2 files)
Hook a stream with only a video track up to a MediaRecorder.
Push a frame through.
Wait two seconds.
Push another frame through.
Wait two seconds.
Stop the MediaRecorder.
Expected: The resulting file should have a duration of at least 4 seconds.
Actual: The resulting file has a tiny duration.
This is because we now use direct listeners in MediaRecorder, but we still pass on the frames with the duration they initially had to the encoder. The encoder is not updated with the time between frames or after the last frame on recording end.
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Reporter | |
Comment 1•9 years ago
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It's not as bad as it sounds. Passing on an extra frame 1 second before stopping in the STR above, it works as expected.
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Reporter | |
Updated•9 years ago
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Attachment #8739052 -
Attachment description: Simple mochitest test case (modified from the changing_video_resolution test) → Failing mochitest test case (modified from the changing_video_resolution test)
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Updated•9 years ago
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Rank: 23
Priority: -- → P2
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Comment 2•7 years ago
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Mass change P2->P3 to align with new Mozilla triage process.
Priority: P2 → P3
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Updated•2 years ago
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Severity: normal → S3
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Description
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