Take the 2-minute tour ×
Ask Different is a question and answer site for power users of Apple hardware and software. It's 100% free, no registration required.

What video formats are usable within iTunes, specifically for syncability/playability on iOS devices?

I understand that we're talking about a number of different things here:

  1. Container format
  2. Video codec
  3. Audio codec
  4. Subtitle format

I have a fairly extensive library of many different kinds of videos, and the prevailing formats are MKV and AVI. I don't really know what codecs are most common in my library, but they pretty much fall under the generic MPEG4 banner, I suppose.

Whenever I research this question on my own, Google results are saturated with transcoding utilities (both paid and free). Sure, transcoding makes for a simple "one click and it magically makes my home video play on my iPad" solution, but for my library it presents a few problems:

  1. Loss of quality
  2. Significant investment in time and computing resources

Is it possible that most of what I have is close enough and just needs to be re-muxed into a different container format? Is there a utility (even command-line) which I could try for this? How would I use that utility to remux and not transcode?

share|improve this question

1 Answer 1

up vote 3 down vote accepted

I have been fighting this issue myself, with some success - but mostly, I have reverted to getting more of my collection in MP4 in the first place.

Subler is a must have to begin. It effortlessly does remuxing of MKV to MP4, including soft subtitles and iTunes Metadata. So for most MKVs, it is a breeze to get them into iTunes in a tidy manner.

When it comes to AVI and other formats, it's a bit trickier. AVI tend to be used with video codecs such as DivX or XviD, and although they could be remuxed into an MP4 container, it seems iTunes will not read it.

If you wanna play around with remuxing, your best bet is ffmpeg. You will need to compile it yourself or Google for binaries.

I'd advice you to convert your MKVs using Subler, and to re-rip/re-download the AVIs in a newer format where possible. What is left you can transcode using Handbrake.

share|improve this answer
3  
@david: If you want a one-stop solution to this and are willing to spend money on it, you might want to investigate iFlicks – it will both re-mux MP4 video and transcode other formats (using Perian). It will also add the metadata needed by iTunes for correct handling, integrate subtitles and is scriptable via AppleScript if you are after an automated workflow (I know this reads a bit like a marketing blurb, but I’m not affiliated … just a happy user). –  kopischke May 18 '12 at 10:14

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.