improve frame extraction, #849
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1 changed files with 6 additions and 1 deletions
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@ -60,7 +60,12 @@ def frame(video, target, position):
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return r == 0
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'''
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#ffmpeg
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cmd = [command('ffmpeg'), '-y', '-ss', str(position), '-i', video, '-an', '-vframes', '1', target]
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pre = position - 2
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if pre < 0:
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pre = 0
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else:
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position = 2
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cmd = [command('ffmpeg'), '-y', '-ss', str(pre), '-i', video, '-ss', str(position), '-an', '-vframes', '1', target]
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r = run_command(cmd)
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return r == 0
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