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85 lines
2.6 KiB
Python
85 lines
2.6 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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Name: FFMPEG Class
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Author: K4YT3X
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Date Created: Feb 24, 2018
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Last Modified: October 22, 2018
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Description: This class handles all FFMPEG related
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operations.
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Version 2.0.3
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"""
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import subprocess
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class Ffmpeg:
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"""This class communicates with ffmpeg
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This class deals with ffmpeg. It handles extracitng
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frames, stripping audio, converting images into videos
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and inserting audio tracks to videos.
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"""
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def __init__(self, ffmpeg_path, outfile):
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self.ffmpeg_path = ffmpeg_path
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self.outfile = outfile
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def extract_frames(self, videoin, outpath):
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"""Extract every frame from original videos
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This method extracts every frame from videoin
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using ffmpeg
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Arguments:
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videoin {string} -- input video path
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outpath {string} -- video output folder
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"""
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execute = "{} -i \"{}\" {}\\extracted_%0d.png -y".format(self.ffmpeg_path, videoin, outpath)
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print(execute)
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subprocess.call(execute)
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def extract_audio(self, videoin, outpath):
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"""Strips audio tracks from videos
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This method strips audio tracks from videos
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into the output folder in aac format.
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Arguments:
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videoin {string} -- input video path
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outpath {string} -- video output folder
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"""
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execute = "{} -i \"{}\" -vn -acodec copy {}\\output-audio.aac -y".format(self.ffmpeg_path, videoin, outpath)
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print(execute)
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subprocess.call(execute)
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def convert_video(self, framerate, resolution, upscaled, ):
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"""Converts images into videos
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This method converts a set of images into a
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video.
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Arguments:
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framerate {float} -- target video framerate
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resolution {string} -- target video resolution
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upscaled {string} -- source images folder
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"""
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execute = "{} -r {} -f image2 -s {} -i {}\\extracted_%d.png -vcodec libx264 -crf 25 -pix_fmt yuv420p {}\\no_audio.mp4 -y".format(
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self.ffmpeg_path, framerate, resolution, upscaled, upscaled)
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print(execute)
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subprocess.call(execute)
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def insert_audio_track(self, upscaled):
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"""Insert audio into video
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Inserts the WAV audio track stripped from
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the original video into final video.
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Arguments:
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upscaled {string} -- upscaled image folder
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"""
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execute = "{} -i {}\\no_audio.mp4 -i {}\\output-audio.aac -shortest -codec copy {} -y".format(self.ffmpeg_path, upscaled, upscaled, self.outfile)
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print(execute)
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subprocess.call(execute)
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