how set gop size ？h264 encoder intel sdk of linux

[andya]

Hi,

in ffmpeg have number：

    /**
     * the number of pictures in a group of pictures, or 0 for intra_only
     * - encoding: Set by user.
     * - decoding: unused
     */
    int gop_size;

how set gop size in intel sdk for linux，and similar number about encoder h264 stream. thanks

[Sravanthi_K_Intel]

Hello Andya,

You access the GOP size from the mfxVideoParam class. In the sample_encoder function, you can set this parameter in the InitMfxEncParams() function. You can find more information on p125 and p129 of mediasdk-man.pdf in the <MEDIASDK>/docs.

Please let me know if I am misunderstanding your question.

Thanks.

Sravanthi

[andya]

i see ：

Number of pictures within the current GOP (Group of Pictures); if
GopPicSize=0, then the GOP size is unspecified. If GopPicSize=1,
only I-frames are used. See Example 14 for pseudo-code that
demonstrates how SDK uses this parameter

but i don‘t know Example 14，where ‘s it，i not found in <MEDIASDK>/samples，can u provides detailed information？

[Sravanthi_K_Intel]

Hello Andya,

You can find Example 14 on p123 of the same document (mediasdk-man.pdf in the <MEDIASDK>/docs).

Let me know if you have more questions.