Making a video web log is fairly simple in WordPress.
1 – Produce a Video
The preferred format is an mp4 container with the AVC/H.264 video codec (mpg with the mpeg2 codec is second choice) and MP3 or AAC (needed for surround sound) audio codec. This minimizes losses in the video conversions that will be done by either your video host or yourself. The preferred resolution is 1920×1080 (1080p) or 1280×720, but not greater than the resolution of the raw footage used to produce the video. Apple TV can display H.264 video, up to 5mbps, 1280×720, 24 fps, Progressive Main Profile. Apple TV supports AAC-LC audio up to 320 Kbps. The gating factors for video are bit rate and frame rate.
We’ll go into frame rates below, but minimize changes from the frame rate of your source video. There is no point (in fact there are losses) in increasing the fps from 15 to 30 if the original footage was at 15 fps. While the bitrate for audio can go as high as 48 kHz, YouTube prefers 44.1 kHz.
iTunes only accepts .m4a, .mp3, .mov, .mp4, .m4v, and .pdf so the fewer steps to mp4 the better. The iPod/iPhone/iTouch support 640×480 while the Apple TV supports 1280×720.
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