extend to video and audio using Elastic Transcoder, call it Vokal Media Proxy? about vip

[scottferg]

What would Vmp outputs be if I upload swap.avi?

Serious question but bonus points for anybody brave enough to google that.

@nimzor

[foresmac]

How about a discussion if the relative merits of swap.avi on a bodybuilding forum? @nimzor

[scottferg]

How fast does the service work?

[foresmac]

http://forum.bodybuilding.com/showthread.php?t=5394243

[foresmac]

I haven't had a chance to test that out, but it would probably involve some kind of asynchronous calls for audio and video.

[foresmac]

It can also do HTTP Live Streaming, which I think Android supports, which needs just enough time to encode the first chunk I think before it could return a link to a manifest file. I'd have to re familiarize myself with the details of that format to be sure.

[scottferg]

I'm game for exploring it but we should understand more about the service
before committing.
On Jan 19, 2015 4:54 PM, "Chris Foresman" [email protected] wrote:

I haven't had a chance to test that out, but it would probably involve
some kind of asynchronous calls for audio and video.

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#72 (comment).

[scottferg]

That's what I had in mind. If it provides a fast transcoder then it's a
perfect match. Does it do things like webm?
On Jan 19, 2015 4:57 PM, "Chris Foresman" [email protected] wrote:

It can also do HTTP Live Streaming, which I think Android supports, which
needs

Just enough time to encode the first chunk I think before it could return
a link to a manifest file. I'd have to re familiarize myself with the
details of that format to be sure.

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#72 (comment).

[foresmac]

Ok, I'll leave this open as a starting point for brainstorming. Like I said, I'd imagine it would be useful for other projects at some point.

Maybe a smarter idea is to build support per file format as pluggable, with preview image retrieval basically as is. Then you could launch it with a yaml or JSON file to list the file types you want the current install to support, and new ones can be added as needed.

[foresmac]

I'll check on WebM support.

[scottferg]

Right now I'm thinking (in the spirit of doing one thing well) vmp is a
separate service but yeah let's leave discussion open here until we decide
to tackle it. Amazon's service may provide enough to not merit needing a
proxy.

[foresmac]

Formats: Amazon Elastic Transcoder supports transcoding to the following output formats:
MP4 container with H.264 video and AAC or MP3 audio
WebM container with VP8 video and Vorbis audio
HLS using an MPEG-2 TS container to house H.264 video and AAC or MP3 audio
Smooth Streaming using an fmp4 container to house H.264 video and AAC audio
MP3 container with MP3 audio
MP4 container with AAC audio
OGG container with Vorbis audio

[foresmac]

It can transcode any song file into 30 different formats, so we can specify what files it generates and then selectively serve the appropriate file. It also integrates with S3 and CloudFront pretty easily. It generates thumbs for video.

[foresmac]

s/song/video

[scottferg]

Alright, good info. I say we hit pause on this idea until you've
experimented further. Vip is a lot of things (groupcache, resizing, an HTTP
server, etc) that aren't available in AWS. We should build out Vmp if
Amazon's server creates a need for it, not just because we want to. Once we
know more about how Elastic Transcoder works we can decide if a proxy in
the same vein as Vip is necessary.

On Mon, Jan 19, 2015 at 5:17 PM, Chris Foresman [email protected]
wrote:

s/song/video

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Scott Ferguson
Director of Systems and Web Engineering
VOKAL INTERACTIVE

m: *+1.312.324.0829
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[email protected]
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