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https://github.com/4as/screencapseeker

Application for pin-pointing timestamps of captured screenshots from any video, using FFMPEG.
https://github.com/4as/screencapseeker

analysis ffmpeg video

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Application for pin-pointing timestamps of captured screenshots from any video, using FFMPEG.

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# ScreenCapSeeker
Do you ever wanted to find the exact timestamp in a movie of that one meme image, but didn't want to spend few hours actually watching the movie? **ScreenCapSeeker** can do that for you. Pick a video file and a screenshot from it, and just press START to being the seeking process. Once completed **ScreenCapSeeker** will print out the location of the closest looking frame compared to the provided screenshot.

With my Ryzen 7 2700X **ScreenCapSeeker** processes around 100 frames per second on 720p videos.

# Installation
Simply download and extract *ScreenCapSeeker.zip* from the *Releases* page.
Note that 64bit Windows and .NET 4.8 are required (as is 64bit FFmpeg but it has been included in the `FFmpeg\bin\x64` directory).

# Usage
Open up *ScreenCapSeeker.exe* and you'll be prompted to browse for two media files. The first one will be the movie we'll be seeking through, and the second one is an image (or a video) to search for. Since **ScreenCapSeeker** uses *FFmpeg* behind the scenes, it can open all popular formats including mp4, mkv, avi, png, jpeg, bmp, and few others.
![Main menu preview](docs/intro.png)
If you select a video instead of a screenshot, an additional window will open prompting for a frame to extract. This a quality-of-life option in case you have a short clip from a full movie, and don't want to spend time extracting a proper screenshot.

When selecting a screenshot try to get as close as possible to the quality of the source video. Watermarks, subtitles or compression artifacts might not pose that big of a problem, but cropping will definitely will.

##### Results
As the video is being process **ScreenCapSeeker** will show the preview of the current results. Updated every 100 frames.
![Progress results](docs/progress.jpg)
1. Currently processed frame.
2. Last processed frame to best match the supplied screenshot.
3. Data used for the comparison operation. In 99% of cases this will be the same frame as #2.
4. Screenshot to look for.
5. You can always abort the search by pressing *CANCEL*.
6. Bottom panel shows the current progress.

# Credits
**ScreenCapSeeker** uses [Ruslan-B/FFmpeg.AutoGen](https://github.com/Ruslan-B/FFmpeg.AutoGen) to access the FFmpeg bindings.
Included FFmpeg binaries were downloaded from [BtbN/FFmpeg-Builds](https://github.com/BtbN/FFmpeg-Builds/releases).

# Disclaimer
I have minimal knowledge about FFmpeg inner workings so can't promise everything will work as expected. Feel free to create an issue if anything goes wrong, and I'll see what I can do.