IPhone – App Rejected again, HTTP Live Streaming 64kbps baseline feed

appstore-approvalbaselineios4iphonestreaming

Thank you for submitting APPNAME_HERE.
We have reviewed your application and
have determined that it cannot be
posted to the App Store at this time
because it is not using a baseline
stream of 64 kbps for the HTTP Live
Streaming protocol to broadcast
streaming video. HTTP Live Streaming
is required when streaming video feeds
over the cellular network, in order to
have an optimal user experience and
utilize cellular best practices. This
protocol automatically determines
bandwidth available to users and
adjusts the bandwidth appropriately,
even as bandwidth streams change.
This allows you the flexibility to
have as many streams as you like, as
long as 64 kbps is set as the baseline
feed.

This is what I have gotten from Apple, eventhough I have a 48kbps, 64kbps, 128kbps AND 384kbps stream available.
How do I set the baseline feed? The way my app works now is it loads the lowest available first and then scales upwards with the bandwidth.
This is my index m3u8

#EXTM3U
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=48000
stream-soundonly.m3u8
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=64000
stream-64k.m3u8
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=128000
stream-128k.m3u8
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=384000
stream-384k.m3u8

Apple is really being nitpicky

Best Answer

We ran into the same issue. Apple doesn't only inspect your M3U8 file to ensure it complies. They also monitor your streams to make sure they are what you say they are. Our stream turned out to be higher-than-64K -- because we didn't factor in the audio bandwidth (a careless, but important oversight). Remember that 64K applies to the entire stream: Video + Audio <= 64000.

If you are in doubt, Apple also offers the same stream-monitoring software. If you ask them, they will provide you a link to it. At least they did to my group.

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As i have written in question ,i was using java .So i go with option of barcode images.Using Barbecue
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Iphone – HTTP live streaming with ios

I can only comment on pre-recorded video, not live streaming...

Do I have to convert mp4 video to M8U8?

I think you mean .m3u8. Basically, you need to take your .mp4 file and:

Encode it to a friendly bitrate for mobile bandwidths. You can use Apple's Compressor* app for this, it has presets for HTTP Live Streaming. Pick something around 1000kbps if you're playing around.
Slice it up the output using Apple's mediafilesegmenter. You'll end up with lots of small .ts files and a manifest (.m3u8) which lists them.
Hit the .m3u8 file in your player (initWithContentURL...) and you're off.
Repeat steps 1 and 2 above and specify differing bandwidths. We went for the presets in Compressor.
You'll end up with different versions of your video, 1 for each bandwidth, use the variantplaylistcreator tool from Apple to create a master playlist file which will point your player to each bandwidth so it can switch automatically.
Stick all your .ts files and .m3u8 files on the net and use the mediastreamvalidator tool to check your master playlist file is ok and points to each version correctly.

Make sure a decent quality bitrate is first in the master playlist file as this is the version that's played first. We went for something around the 1000kbps mark.

Do I have to use MPMoviePlayer?

I can't comment on other libraries, we used MPMoviePlayer.

Can I convert mp4 video to M8U8 format during run-time and how to implement live streaming

You can for live streams but for pre-recorded video do it all before. Put all your files online, validate your playlist (.m3u8) and play your videos using the master .m3u8 file.

Is there any example code available for HTTP live streaming?

In our implementation the client in iOS does all the work (e.g. switching streams depending on the available bandwidth). As such you just need to make sure all your files are in the right place before hand.

Compressor - https://www.apple.com/final-cut-pro/compressor/ The mediafilesegmenter and mediastreamvalidator tools command lines tools available to download from the Apple developer network site.

These articles have everything you need to know: https://developer.apple.com/library/archive/documentation/NetworkingInternet/Conceptual/StreamingMediaGuide/Introduction/Introduction.html https://developer.apple.com/library/archive/technotes/tn2288/_index.html#//apple_ref/doc/uid/DTS40012238

Open this up in Safari: https://developer.apple.com/streaming/examples/advanced-stream.html - Each 'Gear' is a different bitrate stream

Crack open this .m3u8 file in a text editor for an example master playlist file: https://devimages.apple.com.edgekey.net/resources/http-streaming/examples/bipbop_16x9/bipbop_16x9_variant.m3u8

Best Answer

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