i.MX ProcessorsのトピックRe: About imx6q VPU encoding

About imx6q VPU encoding

397028133 — Mon, 12 Dec 2016 09:40:42 GMT

Hi,All

I refer to "took imx - test - 5.3" code, for video coding.Before calling a function, I value assigned to EncOpenParam the following figure:

The gopSize value set to 10, usually the H264 frame structure should be IPPPPPPPPP, but I found the video encoding only at the start of the first frame of the data for the I frame.I call a vpu_EncGetOutputInfo after vpu_EncStartOneFrame encoding a frame data access code data, when sEncOutInfo. PicType = 0, or P frame.

I use the kernel version is L3.14.52

Is there anyone who faced the same problem?Thank you very much!

Re: About imx6q VPU encoding

joanxie — Tue, 27 Dec 2016 07:44:43 GMT

did you try to use imx test? the same issue? like command "./mxc_vpu_test.out -E" the option "-g 10" for gopsize

Re: About imx6q VPU encoding

397028133 — Thu, 29 Dec 2016 01:51:07 GMT

Yes.

Re: About imx6q VPU encoding

397028133 — Thu, 29 Dec 2016 02:46:12 GMT

The test code is 'imx-test-5.3'.

Re: About imx6q VPU encoding

397028133 — Thu, 29 Dec 2016 02:48:25 GMT

BSP is L3.14.52

Re: About imx6q VPU encoding

juzichen — Thu, 27 Jul 2017 01:15:49 GMT

HI!

Your problem solved?I met the same problem.

Re: About imx6q VPU encoding

397028133 — Thu, 27 Jul 2017 02:31:36 GMT

你好，I帧的数量是自己控制的，在编码结束后出数据流出的结构体中有相应的标志位，比如你需要一个I帧，后面紧跟9个P帧，这个时候可以每10帧改变这个标志位，就可以了，我是这样做的，希望能帮到你。

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Re: About imx6q VPU encoding

juzichen — Thu, 27 Jul 2017 02:57:35 GMT

你好，非常感谢你的回复，您是修改哪个标志位的呢？调用哪个接口来修改呢？

Re: About imx6q VPU encoding

397028133 — Thu, 27 Jul 2017 06:56:10 GMT

你好，这个我记得不是很清楚，需要你自己去看看结构图参数了。

Re: About imx6q VPU encoding

juzichen — Thu, 27 Jul 2017 07:42:15 GMT

谢谢，你还记得你是直接对这个参数赋值呢，还是需要调用VPU的接口来通知VPU？

是这个标志位么？还有印象？

Re: About imx6q VPU encoding

397028133 — Thu, 27 Jul 2017 08:10:44 GMT

重点关注vpu的相关的结构体参数

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