Apple TV 3 Preset?

[willwinuk]

Hi,
For the 3rd gen Apple TV would I just select the Apple TV (720p) preset and change the resolution to 1920x1080 when needed or does MediaCoder still really need a dedicated preset for the 3rd Apple TV?

[HuggiL]

Looking at the technical specifications for the Apple TV 3rd gen, it requires this:

• H.264 video up to 1080p, 30 frames per second, High or Main Profile level 4.0 or lower, Baseline profile level 3.0 or lower with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
• MPEG-4 video up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
• Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format

I'm not sure what settings the 720p preset uses but you can use it as a base, just check the settings it loads against the specifications provided by Apple. Or, it might be better to just create a new preset:

Code: Select all

<?xml version="1.0" encoding="UTF-8"?>
<MediaCoderPrefs><node key="overall.subtitle.mode">Disabled</node><node key="overall.audio.bitDepth">Original</node><node key="overall.video.mode">2-Pass</node><node key="overall.video.bitrate">8000</node><node key="overall.video.ar">Keep PAR</node><node key="audioenc.nero.mode">CBR</node><node key="audioenc.nero.bitrate">160</node><node key="videoenc.x264.profile">High</node><node key="videoenc.x264.level">40</node><node key="videofilter.scale.enabled">true</node><node key="videofilter.scale.width">1920</node><node key="videofilter.scale.height">1080</node><node key="videofilter.frame.enabled">true</node><node key="videofilter.frame.fps">30</node></MediaCoderPrefs>

Just copy all that into Notepad and save as an .xml file. Then load it as a preset into MediaCoder. It's set for H.264 1080p/30fps @ High 4.0 using 2-pass encoding with 8Mbps bitrate (you'll want to change the bitrate and maybe rate mode depending on your preferences) and LC-AAC 160kbps stereo audio.

[willwinuk]

Thanks

[watson45]

For the 3rd gen Apple TV would I just select the Apple TV (720p) preset and change the resolution to 1920x1080 when needed or does MediaCoder still really need a dedicated preset for the 3rd Apple TV?

[HuggiL]

For the 3rd gen Apple TV would I just select the Apple TV (720p) preset and change the resolution to 1920x1080 when needed or does MediaCoder still really need a dedicated preset for the 3rd Apple TV?

I suppose you could but you also need to change the bitrate as well at minimum. Maybe some of the more advanced stuff like profiles and levels as well.