[x264-devel] Generating H264 for iPad?

[Robert Reinhardt [theMAKERS]]

Hadmut, MP4/H.264 can support multiple audio programs. I built a custom 11 audio language encoding/playback solution for British Columbia's "Welcome BC" site. I didn't encode using ffmpeg, but using another tool like mp4box can remux audio programs for a final H.264 multi-audio track file. 

The site's here, playable with Flash on desktop, and HTML5 on iOS:

http://www.welcomebc.ca/wbc/immigration/settle/newcomersguide/bank_card.page?lang=en&id=LBEHF&cat=newcomersguide

All of it is H.264 video, served with Wowza Media Server.

I don't want to clutter the list with a side discussion, but feel free to ping me directly with any questions on what I did in that process.

Best,

Robert

--
Robert Reinhardt
videoRx.com

-----Original Message-----
From: x264-devel-bounces at videolan.org [mailto:x264-devel-bounces at videolan.org] On Behalf Of Hadmut Danisch
Sent: Thursday, February 23, 2012 11:46 AM
To: x264-devel at videolan.org
Subject: Re: [x264-devel] Generating H264 for iPad?

Hi Michael,

Am 23.02.2012 14:53, schrieb Michael Roitzsch:
>
> You're playing AVI on the iPad? 

Currently I am still using .mp4 for testing, but I plan to use avi
because I also want to support video files with several audio tracks
(german/english).

I have a 704x464 H.264 video in avi with two audio tracks that runs well
on iPad (with app goodplayer). But 704x464 is not 1280x720.







> Maybe that's the root cause for your problems. Since Apple's AVFoundation does not support AVI on iOS, I assume you use a third-party player app? This player may not use the hardware accelerated decoding then. (Which may be hard to do, since the acceleration is probably not exposed with an API, but only accessible through AVFoundation.)

Well, I'm using goodplayer app, and trying to figure out why this app
can play some 1280x720 H.264 videos I've downloaded from Internet (e.g.
youtube) very well, while it can display videos converted with ffmpeg
under ubuntu into 1280x720 H.264 only in lower resolutions.



Something is bad with what ffmpeg produces based on libx264, and I don't
know what it is yet.



regards
Hadmut


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