21 lines
955 B
Python
21 lines
955 B
Python
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import av
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with av.open("TestClips/x264Source.mkv") as container:
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frame_num = 622
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time_base = container.streams.video[0].time_base
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framerate = container.streams.video[0].average_rate
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timestamp = frame_num/framerate
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rounded_pts = round((frame_num / framerate) / time_base)
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print(f"Variables:\n\
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frame_num: {frame_num} (type: {type(frame_num)}\n\
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time_base: {time_base} (type: {type(time_base)}\n\
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timestamp: {timestamp} (type: {type(timestamp)}\n\
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frame_num / framerate: {frame_num / framerate}\n\
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frame_num / time_base: {frame_num / time_base}\n\
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(frame_num / framerate) / time_base: {(frame_num / framerate) / time_base}\n\
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rounded_pts = {rounded_pts}\
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")
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container.seek(rounded_pts, backward=True, stream=container.streams.video[0])
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frame = next(container.decode(video=0))
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frame.to_image().save("TestClips/Thumbnail3.jpg".format(frame.pts), quality=80)
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