[Webkit-unassigned] [Bug 165342] New: [MSE] SourceBuffer abort() before appending segment causes partial segment
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Fri Dec 2 14:54:55 PST 2016
https://bugs.webkit.org/show_bug.cgi?id=165342
Bug ID: 165342
Summary: [MSE] SourceBuffer abort() before appending segment
causes partial segment
Classification: Unclassified
Product: WebKit
Version: Safari 10
Hardware: Unspecified
OS: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: Media Elements
Assignee: webkit-unassigned at lists.webkit.org
Reporter: joeyparrish at google.com
Shaka Player (https://github.com/google/shaka-player) discovered that calling abort() on Safari's SourceBuffer before appending a segment sometimes results in only part of the segment showing up in buffer.
In our test, we append the init segment, then call abort(), then append the first media segment. Only 6.9 seconds of the 10-second segment show up.
This is similar in many ways to this bug on Safari 9: https://bugs.webkit.org/show_bug.cgi?id=160316
However, the content from that bug does not trigger this one. It is unclear to me why this bug on Safari 10 is content-specific.
To reproduce:
1. Visit http://storage.googleapis.com/shaka-demo-assets/_bugs/safari-10-mse-abort/index.html in Safari
2. Open the JavaScript console
3. Observe the error message showing that only part of the segment is in buffer.
Reproducible on macOS Sierra, Safari 10.0.1 (12602.2.14.0.7) and WebKit nightly r209234.
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