David Lawrence
2
COW Coins
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[Jeremy Garchow] “Craig Seeman says encoding times are much higher for h265 than h264. “
The article implies that as well. Sounds like new chips will be needed to make it manageable.
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David Lawrence
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[Oliver Peters] “The obvious weak point is dissolving from a static, low texture logo to a fast-moving, highly-textured image.”
Yes. Even a fade to/from black to a complex image is enough to break some codecs.
Back in 2001, I produced a multi-channel DVD installation project for an artist I collaborate with. The imagery was complex high-resolution x-ray photography.
The ProRes masters looked pristine but when we encoded to mpeg2 using Apple’s then new DVD Studio Pro, the fades to and from black looked absolutely horrible. With days until our install, we took the files to an artist friend who is also an MIT engineer. He took one look and said “the codec is broken”.
Fortunately, I had a friend inside Apple and they were able to sneak me a beta of the new mpeg encoder that would be in the next version of DVD Studio Pro. It worked. We got a clean encode and the show went on. 🙂
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David Lawrence
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[Oliver Peters] “Thanks for posting. With all due respect, until someone posts some difference mattes and I-frame edit comparisons, this test of theirs is meaningless.”
Good point. Still frames are also pretty useless for judging motion artifacts.
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David Lawrence
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You’re welcome!
I have a Subsonic media server for my music collection. Last year, I built a custom transcoder that measures the bandwidth of my music player and transcodes a stream in realtime depending on bit rate.
If my iPhone is connected via wifi, it transcodes FLAC to 320K mp3. If I’m connected by 3G, it transcodes FLAC to 65kbps HE-AAC.
The thing that blew my mind is that the HE-AAC streams sound almost identical to the source FLAC files.
If H265 quality is as good as I’ve experienced with High Efficiency codecs on the audio side, this’ll be a *huge* game changer.
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David Lawrence
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[Franz Bieberkopf] “The role or responsibility of Apple (or any other corporation) in all of this certainly up for debate, however its hard to regard with enthusiasm those who make it more difficult, and certainly those looking to the long term and making things easier should be applauded.”
100% agreed. Excellent post, Franz. Thank you.
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David Lawrence
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[kevin louden] “At Testream we have been dealing with many of these issues ourselves from the software development side and are working on a new macosx multi format media player and inspection tool for professionals called Switch. “
Sounds great Kevin. Will it also have the ability to transcode and export like QT7 Player Pro?
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David Lawrence
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[Charlie Austin] “QT7 is fairly useless in this regard as well without unlocking the “Pro.” features. “
Yes. Good thing it happens automatically when you serialize Final Cut Pro Studio. 😉
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David Lawrence
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[Andrew Richards] “Have you tried Digital Heaven’s Pro Player? I haven’t, but it claims to pick up the flag for the old QuickTime Pro, and for the same stand-alone price that Apple used to charge back in the day. Oliver endorsed it!”
Thanks for the link. I’ve also seen it but never tried it. Looks interesting but from the feature list it seems like it’s playback only? One of the things I do a lot in QT7 Pro is quick and dirty export/transcoding. I really like Digital Heaven plug-ins — they’re one of the things I miss the most in Premiere Pro.
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David Lawrence
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[Oliver Peters] “With Mavericks, QTX player only supports H264 and ProRes. Other codecs in MOV containers are converted to these two codecs. Presumably this also includes uncompressed media, which FCP X can still export. Manufacturers are currently getting around this by recommending the continued use of QT7. What happens when Apple no longer supports or distributes QT7? Or when it quits working completely in another OS version or two?”
I just got a new Retina MacBook Pro and noticed this too. One of the first things I had to do was download the QT7 player to open files without them converting. QT& player is also an essential tool for file conversion since QTX’s file export options are severely limited.
I’ve never liked QTX to be honest. Just too limited for my needs. If QT7 player gets phased out, I’m not sure what I’d do but I’d be in trouble. I guess this is an opportunity for a third party…
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David Lawrence
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[Simon Ubsdell] “Instead of inventing something better, the drones at Adobe have done nothing but slavishly copy.”
Actually, it’s really quite good. The biggest problem is Adobe’s toxic business model.
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David Lawrence
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facebook.com/dlawrence
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