Hey Alex,

Thanks for the speedy review! I see you also handled the API Owners bit for
me, thanks for taking a look at it : )

Thanks,
Syed AbuTalib

On Wed, Aug 12, 2026 at 8:32 AM Alex Russell <[email protected]>
wrote:

> Hey Syed,
>
> Those are some big partners! Thanks for letting us know. LGTM1
>
> Best,
>
> Alex
>
> On Monday, August 10, 2026 at 1:05:12 PM UTC-7 [email protected] wrote:
>
>> Hey Alex,
>>
>> Thanks for taking the time to read my request! Apologies, I had forgotten
>> to link to the chromestatusentry page, it was on the last line of the draft
>> and I missed it.
>>
>> You are correct that this feature will not appear on iOS. I believed that
>> not including a milestone number for iOS would suffice, but I can see how
>> that is still confusing. I have now added a sentence to "Dev trials and
>> iterate on design" > "Platform support explanation". Please let me know if
>> there is a better place for this!
>>
>> I was initially hesitant about listing the interested partners (they did
>> not explicitly ask to be named), but currently LG and Samsung are
>> interested in IAMF decoding for their TVs. For content streaming providers
>> the main two are Netflix and YouTube.
>>
>> Also, I did NOT click the API Owners Draft Intent to Ship email as it did
>> not appear I could edit any of the prefilled sections (I wanted to include
>> more information and change the Subject line). I can click Post if that is
>> the only way to start the API Owners review process.
>>
>> Let me know if you have any more questions!
>>
>> Thanks,
>> Syed AbuTalib
>>
>> On Mon, Aug 10, 2026 at 11:59 AM Alex Russell <[email protected]>
>> wrote:
>>
>>> Hey Syed,
>>>
>>> Sorry for the slow reply. Dan noticed this Intent from the mailing list,
>>> but also that it wasn't flagged in the API OWNERS review queue in
>>> chromestatus; perhaps because it didn't link to the feature?:
>>>
>>> https://chromestatus.com/feature/5113656292540416?gate=6110241444986880
>>>
>>> Jason: do you happen to know why that might have happened in this
>>> instance?
>>>
>>> As for the content of the intent, I'm very excited to see IAMF coming to
>>> the web platform; thank you for making it happen.
>>>
>>> I'm a little confused that the Status entry doesn't flag that we won't
>>> be able to deliver this feature to Chrome for iOS, given that we're limited
>>> by Quicktime there, which doesn't have IAMF IIRC?
>>>
>>> Also, it's a bit surprising that we don't have any understanding of web
>>> developer interest noted. Presumably there are partners and publishers that
>>> are interested in this work. Are we able to either identify them, or have
>>> them weigh in here or in GitHub as potential adopters? Adding new formats
>>> to the web is an expensive thing to try to unwind, so it would be good to
>>> be sure this will be adopted if/when launched.
>>>
>>> Best,
>>>
>>> Alex
>>>
>>> On Wednesday, August 5, 2026 at 2:00:24 PM UTC-7 [email protected]
>>> wrote:
>>>
>>>> Contact emails
>>>>
>>>> [email protected], [email protected]
>>>>
>>>> Explainer
>>>>
>>>> https://github.com/SyedAbuTalib/iamf-explainer/blob/main/explainer.md
>>>>
>>>> Specification
>>>>
>>>> https://aomediacodec.github.io/iamf/latest-approved.html
>>>>
>>>> Design docs
>>>>
>>>>
>>>> https://docs.google.com/document/d/1G4Km3hxEnXonvgiZo7got_DWIatBrpYbyzk3yIpaV6A/edit?usp=sharing&resourcekey=0-rS2fUcQM7tcKNDoQmk7Tmg
>>>>
>>>> Summary
>>>>
>>>> Adds support for decoding and playing back the Immersive Audio Model
>>>> and Formats (IAMF) container within HTML media elements via Media Source
>>>> Extensions (MSE). IAMF is an open, royalty-free spatial audio format that
>>>> supports channel-based, scene-based, and object-based audio presentations.
>>>> Supporting this standard allows web developers to deliver consistent,
>>>> immersive 3D audio experiences across different devices without relying on
>>>> proprietary formats or managing complex discrete audio channel routing in
>>>> JavaScript.
>>>>
>>>> Blink component
>>>>
>>>> Blink>Media>Audio
>>>> <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EMedia%3EAudio%22>
>>>>
>>>> Web Feature ID
>>>>
>>>> Missing feature
>>>>
>>>> Motivation
>>>>
>>>> Currently, delivering high-quality, immersive 3D audio on the web
>>>> relies heavily on proprietary formats (like Dolby Atmos) or complex custom
>>>> JavaScript audio rendering. IAMF provides a standardized, royalty-free
>>>> container that allows web developers to deliver rich, consistent spatial
>>>> audio experiences across devices for use cases like gaming, AR/VR, and
>>>> streaming media. Adding IAMF support to Chromium's media pipeline aligns
>>>> with the open web ecosystem and ensures a baseline for spatial audio
>>>> interoperability.
>>>>
>>>> Risks
>>>>
>>>> Interoperability and Compatibility
>>>>
>>>> Low interoperability risk. IAMF is an open, royalty-free spatial audio
>>>> format maintained by AOMedia. Initial support in Chromium focuses on IAMF
>>>> streams backed by the Opus codec in MP4 containers delivered via Media
>>>> Source Extensions (MSE). Support can be detected by existing web APIs such
>>>> as canPlayType or media capabilities.
>>>>
>>>> Gecko: No signal,
>>>> https://github.com/mozilla/standards-positions/issues/1437
>>>>
>>>> WebKit: No signal,
>>>> https://github.com/WebKit/standards-positions/issues/700
>>>>
>>>> Web developers: No signals, N/A
>>>>
>>>> Other signals: Strong interest from external partners.
>>>>
>>>> Debuggability
>>>>
>>>> Exposed via chrome://media-internals and DevTools Media panel.
>>>>
>>>> Will this feature be supported on all six Blink platforms (Windows,
>>>> Mac, Linux, Chrome OS, Android, and Android WebView)?
>>>>
>>>> Yes
>>>>
>>>> Supported on all platforms where Chromium media audio decoding is
>>>> supported.
>>>>
>>>> Is this feature fully tested by web-platform-tests
>>>> <https://chromium.googlesource.com/chromium/src/+/master/docs/testing/web_platform_tests.md>
>>>> ?
>>>>
>>>>
>>>> https://github.com/web-platform-tests/wpt/blob/master/media-source/mediasource-iamf-playback.html
>>>>
>>>>
>>>> https://wpt.fyi/results/media-source/mediasource-iamf-playback.html?label=experimental&label=master&aligned
>>>>
>>>> Flag name on chrome://flags
>>>>
>>>> None
>>>>
>>>> Finch feature name
>>>>
>>>> IamfAudioDecoding
>>>>
>>>> Requires code in //chrome?
>>>>
>>>> False
>>>>
>>>> Tracking bug
>>>>
>>>> https://crbug.com/535279329
>>>>
>>>> Estimated milestones
>>>>
>>>> Shipping on desktop 153
>>>>
>>>> Shipping on Android 153
>>>>
>>>> Shipping on WebView 153
>>>>
>>>> Requesting approval to ship?
>>>>
>>>> Yes.
>>>>
>>>>

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