269915 - No way to play audio in SVG on Mac

Status: RESOLVED WORKSFORME

(Core :: SVG, defect)

Description

[jonathan chetwynd]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8a5) Gecko/20041103 Firefox/0.9.1+
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8a5) Gecko/20041103 Firefox/0.9.1+

is SMIL 1.0 or 2.0 supported?
http://w3.org/AudioVideo/#SMIL  mozilla nor firefox listed

son et lumiere: that is sound and light, not light and sound.
sound is critical to the use of the web by many people with disabilities.
it has the potential to enhance many web experiences.


Reproducible: Always
Steps to Reproduce:
1.
2.
3.

Actual Results:  
doesn't currently seem possible to play sounds

Expected Results:  
it should be possible, in html it is.

Comment 1

[Josh Birnbaum]

This is probably a dupe, but I'm not sure to which existing SMIL bug.  Jonathan,
which bug applies, or are you asking for something different?

bug 93321 - Native SMIL support (wontfixed)
bug 216462 - SVG SMIL Animation (for SVG-specific SMIL)
bug 231729 - XHTML+SMIL support

Comment 2

[Hixie (not reading bugmail)]

*** This bug has been marked as a duplicate of 93321 ***

Comment 3

[jonathan chetwynd]

sorry Ian, have removed the SMIL aspect as this seems to be out of scope.

Comment 4

[Hixie (not reading bugmail)]

So er, what's the request, exactly?

Comment 5

[jonathan chetwynd]

people who are pre-literate like most of us enjoy and benefit from sound.
SVG is a good vehicle, because many also use symbols to communicate.

specific examples of how sound is used for this client group include:
http://www.peepo.co.uk/launch/index.svg uses adobe extension :-(
http://www.mencap.org.uk/Test/mnis/accessible/html/health/general_health.html flash
http://www.advocacyproject.org.uk/ flash

please note these are all sound on event, and just represent a few of the
hundreds of sites we link to.

would it be possible to use an extension?

until SVG1.2 is adopted: http://www.w3.org/TR/SVG12/media.html#audio-element

I do realise this is asking a lot, but mozilla/firefox HTML does already support
sound.

Comment 6

[Hixie (not reading bugmail)]

Once an audio API (declarative or imperative, as it may be) is specced out and
considered appropriate for Gecko to support (which apparently SMIL was not) then
I'm sure this will happen.

However, a vague request with no specification cannot be implemented, so I shall
mark this INVALID.


You may be interested in seeing the simple Sound API being proposed by WHATWG:

   http://whatwg.org/specs/web-apps/current-work/#sound

Your comments on this API would be most welcome:

   http://whatwg.org/mailing-list


You may also be interested in (and indeed are aware of) the SVG 1.2 proposal:

   http://www.w3.org/TR/SVG12/media.html#audio-element

Notwithstanding the concept that a vector graphics language should include
elements for synchronised audio, Gecko may (if SVG1.2 is deemed more appropriate
for Web browsers than SMIL) implement this once it a candidate recommendation.

Comment 7

[jonathan chetwynd]

ian,

it's a little known fact that the deaf are more disabled than the blind.
I've listed quite a number of bugs, but this is easily the most significant.

my concern is that SVG1.2 wont be fully supported by mozilla for some years.
Could you please explain further what it is that you feel hasn't been supplied.

mozilla already has a 'sound spec' and api as used in html (assuming my
terminology isn't wrong ;-)

SVG supports extensions, so why isn't it reasonable to use an extension that
relies on the html sound?

many of our users rely on sound, that is why flash is so popular with them.
many specialist websites don't use animation at all, just flash for sound.
without some indication that work on sound is going to be implemented in the
near future there is very little point in me continuing to create bug reports.

is there a workaround with foreignObject and flash? anything is worth considering.

cheers

ps I'm not really in a position to comment on the whatWG API

Comment 8

[Hixie (not reading bugmail)]

If the HTML sound API that is currently provided is satisfactory, then you can
just use that in an SVG context, that should work fine (if it doesn't, please
file a separate bug, with a testcase showing the exact problem).

Beyond that I really don't understand exactly what you want.

Comment 9

[jonathan chetwynd]

ian,

I don't understand what you mean by "you can just use [the HTML sound API] in an
SVG context"

I could use it in an html file, but for various reasons that isnt appropriate.

how would I use it in an SVG file?

Comment 10

[jonathan chetwynd]

jwatt suggests trying foreignObject... if you just include an html doc that only
plays the sound.... and just script across the FO if necessary?

giving this some consideration, as Jim and I already discussed similar

Comment 11

[Hixie (not reading bugmail)]

You can use any HTML elements you want in an XML context (such as an SVG
context) by using the XHTML namespace:

   <svg xmlns="http://www.w3.org/2000/svg">
    ...
    <script xmlns="http://www.w3.org/1999/xhtml">
     ...
    </script>
   ...

...or whatever elements you want to use.

Comment 12

[jonathan chetwynd]

Attachment: requires games.mp3 in same directory

Comment 13

[jonathan chetwynd]

ian, is your suggestion #11 theoretical, or practical?

in the meantime attachment tested and working on mac/firefox native but does not
work for me pc/mozilla native

Comment 14

[Hixie (not reading bugmail)]

Practical.

Comment 15

[Hixie (not reading bugmail)]

If there is a bug with a specific testcase, please file a new bug; morphing a
bug to cover a different issue than was originally filed causes confusion and
rarely results in the bug being fixed.

The original bug here was, as far as I can tell, "provide an API for sound that
can be used in SVG, like the HTML API can be used in HTML". There is no reason
who the HTML API can't be used from SVG, so I am marking this WONTFIX: there is
no reason to provide a new API here.

If you have a specific problem with using the existing API, please file a new bug.

Comment 16

[jonathan chetwynd]

sorry Ian,

thanks

Comment 17

[jonathan chetwynd]

http://peepo.co.uk/temp/fo-sound.svg
this file plays a sound onloading svg file

cant get scripting to work, have moved to seperate bug:
https://bugzilla.mozilla.org/show_bug.cgi?id=270470

ian, I cant get your proposed method to work, would appreciate a further hint if
possible

Comment 18

[Hixie (not reading bugmail)]

This isn't a help system, it's a bug database.

Sound support as far as I am concerned will come with the Web Apps proposal I
mentioned in comment 6; I merely pointed to the fact that you can use HTML's
sound support because you mentioned it earlier.

Comment 20

[jonathan chetwynd]

jwatt,

are you using os x?
because I checked once again tonight, this works in html, but not in the svg file attachement as above.

if not please re-opne bug

regards

Comment 21

[jonathan chetwynd]

jwatt, checked with latest mozilla trunk nightly this remains broken.

if this is working using a different branch on os x, please advise.

the svg attachment is known to work in safari
the html attachment works in minefield

Comment 22

[Jonathan Watt [:jwatt]]

Please test using the testcase I've attached to bug 270422.

  https://bugzilla.mozilla.org/attachment.cgi?id=284963

If it doesn't work, please check that the page about:plugins has a handler for the audio/x-wav type.

Comment 23

[Jonathan Watt [:jwatt]]

For some reason we ended up having a conversation about the Mac support on this bug's Windows counterpart (start bug 269915 comment 3). Anyway, the conclusion is that this works for peepo.

Comment 24

[Jonathan Watt [:jwatt]]

I meant bug 270422 comment 3.