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re4ps2
n00b
Joined: 30 Jan 2010
Posts: 17
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 Posted: Mon May 10, 2010 11:34 am Post subject: Anyone good with H264 and Xvid? |
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I converted a video without sound to both H264 and Xvid using AVI as the container. The H264 is half the size of the Xvid, but uses twice the CPU!
The size should be smaller. No problem there. But twice the CPU consumption?! Is this right? I think I did something wrong.
The video codec options were the defaults in Avidemux. |
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boerKrelis
Apprentice
Joined: 01 Jul 2003
Posts: 241
Location: The Netherlands
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| Posted: Mon May 10, 2010 12:03 pm Post subject: |
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| No, this is how it's supposed to be. Store less, compute more. If you'd compare H264 with mpeg-1 the difference is even larger. |
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Jaglover
Watchman
Joined: 29 May 2005
Posts: 8291
Location: Saint Amant, Acadiana
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| Posted: Mon May 10, 2010 1:49 pm Post subject: |
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| Xvid and h264 are both MPEG-4. |
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Gusar
Advocate
Joined: 09 Apr 2005
Posts: 2665
Location: Slovenia
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| Posted: Mon May 10, 2010 4:54 pm Post subject: |
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| Jaglover wrote: | | Xvid and h264 are both MPEG-4. |
So? One is MPEG-4 Part 2, the other is MPEG-4 Part 10 AVC. Apart from both being created by the same standards body and both being DCT based, they are quite different. h264 has a lot more features, which makes it more efficient, but also more resource intensive. |
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