What different I,B,P in Gop and Frame rate and Slice video

[vfx3love]

Hi all,

Do your can help me know about this values :

I know I,B,P frames is H.264 compression frame and readed in wiki . But one guy ask me: " How many I, B,P frames in second with video have frame rate 25f/s ?How they different ? " . And GOP : IPP and IPPB , what way better ?

Do your can help me explain it ?

Why GOP miss I frames or B,P frames get error slice in streaming video ?

Sorry my english no good. Many thank for help .

[Lyris]

How many I, B,P frames in second with video have frame rate 25f/s ?How they different ?
How many depends on the encoding settings.

The differences are explained here:

http://en.wikipedia.org/wiki/Video_compression_picture_types#Intra_coded_frames.2Fslices_.28I.E2.80.91frames.2Fslices_or_Key_frames.29

And GOP : IPP and IPPB , what way better ? Which GOP layout is better depends on the content of the video, and also the encoder.

[Blue_MiSfit]

Why GOP miss I frames or B,P frames get error slice in streaming video ?


B and P frames refer to I frames. If the I frame is missing, the P and B frames have nothing to refer to, so the image gets corrupted.

This is a generalization, but is mostly true.

[vfx3love]

Many thanks Lyris and Blue_MiSfit