Problem with MediaInfo is that it only reads metadata. Which may or may not be correct or complete. To get an accurate gop histogram, the entire clip needs to be read. The free ffmpeg utility ffprobe can skip through a clip and output a list of picture types easily enough... Here's a Windows script that emits a picture-type list.
Looks like Shutter Encoder displays the picture-type list but does not count the pictures in each group. Here's an online implementation that will list the picture-type list as well as each gop's length. But it requires uploading the clip to be analyzed:
This return only "pict_type=", but nothing about number pic. "pict_type=I pict_type=P pict_type=P pict_type=P pict_type=P pict_type=P pict_type=P pict_type=P pict_type=P pict_type=P pict_type=P pict_type=P..."
This return only "pict_type=", but nothing about number pic. "pict_type=I pict_type=P pict_type=P pict_type=P pict_type=P pict_type=P pict_type=P pict_type=P pict_type=P pict_type=P pict_type=P pict_type=P..."
How I can count GOP?
@gorGaram I think you just count picts from one pict type=I to the next. If the above was all of them, then it would be 12. The ffprobe script could be extended to do the counting. Here's a link to a Unix script that does it using grep instead of Findsdtr followed by piping the output to an awk script which does the counting:
@Howard-Vigorita Thanks, I get a bit confused about this, at first I thought the GOP were the pictures within 1 frame, I was told no the GOP is as you say is from one I-frame to the next I-frame & is across multiple frames. But is that not still the "count the pictures in each group", it might be 30GOP but across say 10frames 🤷♂️🙃😂
@gorGaram Yeah maybe, I can't add to this, I too would like an app that shows all GOP across the full clip so I can learn & understand this a bit better, 'The free ffmpeg utility ffprobe' is just numbers, I'd like something that shows a bit more detail/pics, frames etc. When I last looked all apps were paid-for only..
@gorGaram Yeah maybe, I can't add to this, I too would like an app that shows all GOP across the full clip so I can learn & understand this a bit better, 'The free ffmpeg utility ffprobe' is just numbers, I'd like something that shows a bit more detail/pics, frames etc. When I last looked all apps were paid-for only..
So far, for myself, I've been able to get this. The result of the bat file, using ffprobe. You can specify the desired time range where to analyze. For example, you can send a link to a video (for example, youtube), I will show the result.
@gorGaram If you want a 30-day trial version of Elecard StreamEye 2023, you will get the ultimate information. Great for learning. Not sure how much a permanent license is. You will need to fill out a form, then they will send you a link for downloading. https://www.elecard.com/products/video-analysis/streameye
If you want a 30-day trial version of Elecard StreamEye 2023, you will get the ultimate information. Great for learning. Not sure how much a permanent license is. You will need to fill out a form, then they will send you a link for downloading. https://www.elecard.com/products/video-analysis/streameye
I have reached out to this company, although I am uncertain about the ease of obtaining a product or service that meets my needs.
If you want a 30-day trial version of Elecard StreamEye 2023, you will get the ultimate information. Great for learning. Not sure how much a permanent license is. You will need to fill out a form, then they will send you a link for downloading. https://www.elecard.com/products/video-analysis/streameye
I have reached out to this company, although I am uncertain about the ease of obtaining a product or service that meets my needs.
It's too expensive and complicated to just get a GOP. I wrote a powershell script (picture above), it solves the problem. IMHO