577872 - Create WebM versions of Ogg reftests

Status: RESOLVED FIXED

(Core :: Audio/Video, defect)

Description

[Matthew Gregan [:kinetik]]

We have no reftest coverage for WebM right now, and we need it.

Comment 1

[Paul Adenot (:padenot)]

How these would be different from the ogg reftests ? Could this be achieved using a few sed and ffmpeg invocations ?

Comment 2

[Chris Pearce [:cpearce (Not reading bugmail)]]

WebM reftests would test the WebM decoder backend. You should be able to just convert the Ogg files used by the ogg reftests to WebM using ffmpeg, and create new tests for them identical to the existing Ogg reftests.

Comment 3

[Paul Adenot (:padenot)]

Attachment: Patch v0 - convertion from OGG testsuite

It appears that offset-1.xhtml fails with the webm backend. It is related to video cropping, and I don't know if this is supported in the webm format, since all my video players and browsers don't crop the video (as they do using the ogg version of the file).

I've consequently removed that test in this patch, which is basically a |sed -i 's/\(.*\)ogv/\1webm/g' *html| invocation followed by a couple of ffmpeg call.

Comment 4

[Timothy B. Terriberry (:derf)]

(In reply to comment #3)
> It appears that offset-1.xhtml fails with the webm backend. It is related to
> video cropping, and I don't know if this is supported in the webm format,

It is, but the crop rectangle must be specified at the container level, and not the codec level like it is with Theora. I would not be surprised if whatever you used to do the conversion didn't preserve it correctly.

Comment 5

[Paul Adenot (:padenot)]

Attachment: Patch v1 -- Added offset test back

I finally managed to get an offset reftest working, so the suite is now as complete as the ogg testsuite.

I used mkvmerge --cropping 1:29,4,6,31 --display-dimension 1:29x29 to get a correct video.

Comment 6

[Paul Adenot (:padenot)]

kinetik, several of these tests are failing on OSX 64bit. I've set up a mac today to try to reproduce the failure, but I haven't been successful so far. I plan to investigate tomorrow.

try push : http://tbpl.mozilla.org/?tree=Try&rev=01e26493cec8

Comment 7

[Matthew Gregan [:kinetik]]

Paul, can you please remove poster-14.html before you check in?  It's an invalid test; see bug 622059.

Comment 8

[Paul Adenot (:padenot)]

Attachment: Patch v2 - Removed invalid test poster-14

Here is the same patch without the test mentioned in the previous comment.

Comment 9

[Marco Bonardo [:mak] (Away Apr 25 - May 5)]

http://hg.mozilla.org/mozilla-central/rev/d108ca6c87fd