Lavanya_lave
Posts: 11
Joined: Tue May 27, 2014 5:56 pm

H264 Decoder

Thu May 29, 2014 10:39 am

Where can i find the feature list of H.264 decoder
a) Supported profile and level?
b) Supported resolution?

dom
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
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Joined: Wed Aug 17, 2011 7:41 pm
Location: Cambridge

Re: H264 Decoder

Thu May 29, 2014 11:15 am

Officially it is Blu-Ray level (High Profile 4.1 up to 1920x1080@30).

We'll do a "best effort" for streams above this, and with sufficient gpu_mem allocated will often play 5.1 streams (but no promises).

Lavanya_lave
Posts: 11
Joined: Tue May 27, 2014 5:56 pm

Re: H264 Decoder

Thu May 29, 2014 5:31 pm

@dom : Where can i get feature list of h264

jamesh
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
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Joined: Sat Jul 30, 2011 7:41 pm

Re: H264 Decoder

Thu May 29, 2014 10:03 pm

Lavanya_lave wrote:@dom : Where can i get feature list of h264
Wikipedia.
Principal Software Engineer at Raspberry Pi (Trading) Ltd.
Contrary to popular belief, humorous signatures are allowed.
I've been saying "Mucho" to my Spanish friend a lot more lately. It means a lot to him.

Lavanya_lave
Posts: 11
Joined: Tue May 27, 2014 5:56 pm

Re: H264 Decoder

Fri May 30, 2014 5:48 am

@dom : Thanks for the information

matias
Posts: 10
Joined: Mon Jun 11, 2012 1:08 pm

Re: H264 Decoder

Wed Sep 10, 2014 10:23 am

@dom, what about High422 profile? omxplayer seems to accept it, but the image is not displayed correctly.

jamesh
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
Posts: 27415
Joined: Sat Jul 30, 2011 7:41 pm

Re: H264 Decoder

Wed Sep 10, 2014 1:21 pm

Is that the 10bpp version of h264? If so that is not supported.
Principal Software Engineer at Raspberry Pi (Trading) Ltd.
Contrary to popular belief, humorous signatures are allowed.
I've been saying "Mucho" to my Spanish friend a lot more lately. It means a lot to him.

dom
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
Posts: 5660
Joined: Wed Aug 17, 2011 7:41 pm
Location: Cambridge

Re: H264 Decoder

Wed Sep 10, 2014 3:02 pm

No 422 refers to the chroma subsampling (i.e. not subsampled vertically).
But, like hi10 it is not supported by the hardware.

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