add: video processing tool

Author: king04aman

Video Processor/README.md

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+# Video Processing Tool
+
+In this Python tool processes a video file by extracting short clips, applying filters and effects, and generating subtitles for each clip. The processed clips are saved as new video files along with corresponding subtitle files.
+
+## Features
+
+- Extracts clips of a specified duration from the input video.
+- Applies image processing effects including brightness, contrast, saturation adjustments, and blurring.
+- Generates simple subtitle files for each clip.
+
+## Requirements
+
+To run this script, you'll need the following Python packages:
+
+- `opencv-python`
+- `pysrt`
+
+You can install these using pip:
+
+```bash
+pip install opencv-python pysrt
+```
+
+## Usage
+
+1. **Input Video**: The script prompts you to enter the link to a YouTube video. Make sure to use a video URL that is accessible and can be downloaded.
+   
+2. **Clip Duration**: The default duration for each extracted clip is set to 10 seconds. You can modify this value in the script as needed.
+
+3. **Run the Script**: Execute the script using Python:
+
+   ```bash
+   python video_processor.py
+   ```
+
+4. **Output**: 
+   - The processed clips will be saved as `clip0_out.mp4`, `clip1_out.mp4`, etc.
+   - Corresponding subtitle files will be saved as `clip0_subtitle.srt`, `clip1_subtitle.srt`, etc.
+
+## Code Explanation
+
+- **Video Capture**: The script uses OpenCV to read frames from the video.
+- **Image Processing**: Each frame within the clip duration is processed using filters and effects:
+  - **Brightness and Contrast**: Adjusts the brightness and contrast of the frame.
+  - **Saturation**: Modifies the saturation of the frame.
+  - **Blurring**: Applies Gaussian blur and combines with a weighted blend for a smoother look.
+  
+- **Subtitle Generation**: For each clip, a simple subtitle text ("This is a sample subtitle") is generated and saved in a `.srt` file format.
+
+## Limitations
+
+- The script assumes the video file can be read directly via OpenCV, which may not be applicable for all YouTube links without prior downloading.
+- Subtitle text is static; you may want to customize it based on the content of each clip.
+

Video Processor/requirements.txt

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+opencv-python==4.8.0.76
+pysrt==1.1.2

Video Processor/video_processor.py

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+import cv2
+import pysrt
+
+# Load the input video
+input_file = input("Enter the YouTube video link: ")
+cap = cv2.VideoCapture(input_file)
+
+# Set the start and end times for each short video clip
+clip_duration = 10.0
+clip_start_time = 0.0
+clip_end_time = clip_start_time + clip_duration
+
+# Set up OpenCV for video processing
+kernel = cv2.getStructuringElement(cv2.MORPH_RECT, (3,3))
+brightness = 30
+contrast = 1.5
+saturation = 1.5
+
+# Process each short video clip
+i = 0
+while cap.isOpened():
+    # Read the next frame from the input video
+    ret, frame = cap.read()
+    if not ret:
+        break
+    
+    # Get the current time in seconds
+    current_time = cap.get(cv2.CAP_PROP_POS_MSEC) / 1000.0
+    
+    # If the current time is within the current clip, process the frame
+    if current_time >= clip_start_time and current_time <= clip_end_time:
+        # Apply the filters and effects
+        frame = cv2.filter2D(frame, -1, kernel)
+        frame = cv2.convertScaleAbs(frame, alpha=contrast, beta=brightness)
+        frame = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)
+        h, s, v = cv2.split(frame)
+        s = cv2.convertScaleAbs(s, alpha=saturation, beta=0)
+        frame = cv2.merge((h, s, v))
+        frame = cv2.cvtColor(frame, cv2.COLOR_HSV2BGR)
+        frame = cv2.GaussianBlur(frame, (5,5), 0)
+        frame = cv2.addWeighted(frame, 1.5, cv2.blur(frame, (10,10)), -0.5, 0)
+        
+        # Write the modified frame to a new video file
+        out = cv2.VideoWriter('clip' + str(i) + '_out.mp4', cv2.VideoWriter_fourcc(*'mp4v'), cap.get(cv2.CAP_PROP_FPS), (int(cap.get(cv2.CAP_PROP_FRAME_WIDTH)), int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))))
+        out.write(frame)
+        out.release()
+        
+        # Generate subtitles for the clip
+        subtitle_text = "This is a sample subtitle"
+        subtitle_duration = clip_duration
+        subtitle_file = pysrt.SubRipFile()
+        subtitle = pysrt.SubRipItem(index=1, start=0, end=subtitle_duration, text=subtitle_text)
+        subtitle_file.append(subtitle)
+        subtitle_file.save('clip' + str(i) + '_subtitle.srt')
+        
+        # Move to the next clip
+        i += 1
+        clip_start_time += clip_duration
+        clip_end_time += clip_duration
+    
+    # If the current time is past the end of the current clip, move to the next clip
+    elif current_time > clip_end_time:
+        clip_start_time += clip_duration
+        clip_end_time += clip_duration
+
+# Release the resources
+cap.release()
+cv2.destroyAllWindows()