Bug 58462 – Media engine fallback doesn't always work

• Component: Media
• Status: RESOLVED FIXED

[Eric Carlson]

When a media engine fails to open a url before readyState reaches HAVE_METADATA, MediaPlayer::networkStateChanged is supposed to try to open it with the next media engine. This doesn't work when the file doesn't have a MIME type and doesn't have an extension, eg. opening https://bug-52552-attachments.webkit.org/attachment.cgi?id=79249 in a media document.

[Eric Carlson]

Created attachment 89424 [details]
Proposed patch.

[Eric Carlson]

<rdar://problem/9278261>

[WebKit Review Bot]

Attachment 89424 [details] did not pass style-queue:

Failed to run "['Tools/Scripts/check-webkit-style', '--diff-files', u'Source/WebCore/ChangeLog', u'Source/WebCor..." exit_code: 1

Source/WebCore/platform/graphics/MediaPlayer.cpp:791:  Extra space after ( in if  [whitespace/parens] [5]
Total errors found: 1 in 2 files


If any of these errors are false positives, please file a bug against check-webkit-style.

[Eric Carlson]

(In reply to comment #3)
> Attachment 89424 [details] did not pass style-queue:
> 
> Failed to run "['Tools/Scripts/check-webkit-style', '--diff-files', u'Source/WebCore/ChangeLog', u'Source/WebCor..." exit_code: 1
> 
> Source/WebCore/platform/graphics/MediaPlayer.cpp:791:  Extra space after ( in if  [whitespace/parens] [5]

Oh dear, I have been shamed by the pedantic-bot!

[Alexey Proskuryakov]

Comment on attachment 89424 [details]
Proposed patch.

View in context: https://bugs.webkit.org/attachment.cgi?id=89424&action=review

As discussed in person, it is wrong that we don't have a MIME type here - WebKit knew it when it decided to create a media document. Passing the MIME type down would be another way to fix this particular bug.

There are other ways to reach this code without a known MIME type, so the fix is still useful.

> Source/WebCore/ChangeLog:8
> +        No new tests, this was verified manually with the url noted in the bug.

This doesn't really explain why there is no regression test.

[Eric Carlson]

http://trac.webkit.org/changeset/83763