FFMpeg

Contains all the code and description of video file conversions of different format

Convert Image Sequence to H264 using ffmpeg:

ffmpeg -framerate 30 -i DSC_%04d.JPG -c:v libx264 -crf 23 -pix_fmt yuv420p output.mp4

[Alternatively, you can use the following to convert a set of Images into Video:

import numpy as np import glob

img_array = [] for filename in glob.glob('C:/New folder/Images/*.jpg'): img = cv2.imread(filename) height, width, layers = img.shape size = (width,height) img_array.append(img)

out = cv2.VideoWriter('project.avi',cv2.VideoWriter_fourcc(*'DIVX'), 15, size)

for i in range(len(img_array)): out.write(img_array[i]) out.release()]

FFMPEG extracts intra-frames I, P,B frames: (in example we have B frames

ffmpeg -i -vf '[in]select=eq(pict_type,B)[out]' b.frames.mp4

On a related note, we can use colors to show each macroblock:

ffmpeg -debug vis_mb_type -i input.mp4 output.mp4

This will also show you the motion vectors:

ffplay -debug vis_mb_type -vismv 7 input.mp4