Feature Request: Implement appendBuffer(blob)

[beaufortfrancois]

Is there's a technical reason why blob is not a valid source for appendBuffer()?
The immediate benefit I see to use blob is to not fetch the whole content at once into renderer memory like arrayBuffer does. It would be especially true in responses from the Cache API.

[jyavenard]

Wouldn't that concern "not fetch the whole content at once into renderer memory like arrayBuffer does." a Blink only thing?

So far down the line, may be too late to add support for blob...

[calvaris]

IIRC at some point there was the intention of having appendBuffer taking a ReadableStream which would allow not loading the whole buffer in memory. I just checked the status of this and could not find it anywhere.

[jyavenard]

I believe you mean appendStream... it was removed in #139

[paulbrucecotton]

Can we close this issue as a duplicate of ISSUE-14?

/paulc
HME WG Chair

[beaufortfrancois]

@paulbrucecotton Do we have a rough ETA when to expect the next version of MSE (including appendStream())?

[paulbrucecotton]

The HME WG's charter currently only permits the WG to do maintenance on MSE. In Philippe's announcement it clearly states:

"As such, the Working Group is only allowed to make corrections that do not add new features [4] to its Recommendation(s) under this charter extension."

My suggestion is that those interested in the appendStream feature should "incubate" such a feature in a Community Group.

/paulc
HME WG Chair

[beaufortfrancois]

Thank you @paulbrucecotton
@wolenetz Is that something you would be interested in?

[mayeaux]

+1

[jakearchibald]

@calvaris

IIRC at some point there was the intention of having appendBuffer taking a ReadableStream which would allow not loading the whole buffer in memory

Rather than take a readable stream, it should expose a writable endpoint that you could pipe to.

I threw together a little demo of this at https://media-source-writable.glitch.me/, based on an example from @beaufortfrancois.

[wolenetz]

See also #14, probably a duplicate if the approach is to add a writable endpoint to a SourceBuffer to which a stream/sequence of chunks could be piped.