Hello everyone! I have noticed in a few posts/threads screenshots of a video analyzer that plots the I, P, and B frames in a columnar graph format with frame # on the x-axis and bytes/frame on the y-axis. The I, P, and B frames are coded blue, green, and red or some similar color scheme.
Can someone point me towards what program(s) is(are) capable of this? Sorry I am not posting a link to the various threads where I have seen these screenshots; they are hard to find and search for. I want to move past relying solely on mediainfo to understand various encoding strategies.
Thanks all![]()
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MediaInfo doesn't show the GOP structure of any files. GSpot can show the GOP structure of AVI and MEG files. Press the little VGS button after opening the file. For example:
https://forum.videohelp.com/threads/367112-Blockiness-pixellation-in-TMPGEnc-Authoring-...=1#post2345643 -
Use ffprobe:
Code:@ffprobe -threads %NUMBER_OF_PROCESSORS%*1.5 -v quiet -pretty -print_format csv -show_entries "frame=coded_picture_number,pict_type,pkt_size" -select_streams v:0 %1 > %1.csv
Last edited by pandy; 16th Sep 2014 at 06:47.
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Bitrate Viewer can show the bitrate in a graph like that but it doesn't show the frame type. But if you set it to frame mode you can easily tell the I, P, and B frame apart by their size.
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Did you try any of the programs in that thread at the Cow? It was done with gnuplot + ffprobe, both free. The problem on windows is no "grep", so you need another way to sort though the data . You might be able to do it with Windows powershell or some other utility .
Or did you try the one near the bottom ? plotbitrate ? looks like it uses ffprobe as well -
^^From the screenshot it looks similar to what I have seen posted in various threads on this forum.
^No I didn't because I am on windows and I was hoping for a simple utility before having to create my own hack. -
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Yes, it's frustrating because I didn't bookmark any of those threads and my searches are pointless. If I ever come across one of the threads again I will be sure to post back here with the link and pic.
EDIT: StreamEye may be what I saw before. But after googling wow! Clearly for the pros. $$$! -
This is for pros http://www.tek.com/datasheet/mpeg-software/mts4eav7-datasheet prices began somewhere around 40000$ -
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Don't judge professional equipment based on few screen shots and fact that they use WinXP (i use frequently XP as lightweight when compared to newer MS OS versions - frequently they use Embedded version of system - such as in mine R&S FSV worth around 70k E or MTS430 we have worth around 30k E) - one of the first things i change in new system is completely turning of some services like themes, shadow under pointer, translucency and reducing video depth to 16 bit - it helps magically with speed of interface especially when remote connection is used.
Trust me - quality of data is more important than how few screenshots look...