35 lines
938 B
Batchfile
35 lines
938 B
Batchfile
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@echo off
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if "%1"=="" (
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echo Please provide the input file as the first argument.
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goto :eof
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)
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if "%2"=="" (
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echo Please provide the scale as the third argument.
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goto :eof
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)
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set input_file=%1
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set scale_width=%2
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if "%scale_width%"=="0" (
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set scale_width=-1
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)
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set video_string="scale=%scale_width%:-1"
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if not "%3"=="" (
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set video_string=%video_string%,colorkey=%3:0.1:0.1
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)
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set output_folder=dumped_frames
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if exist %output_folder% (
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rmdir %output_folder% /Q/S
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)
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mkdir %output_folder%
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ffmpeg -i %input_file% -nostats -loglevel 0 -vf "%video_string%,split[a][b];[a]alphaextract[am];[b][am]alphamerge" "%output_folder%/frame_%%04d.png"
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ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of csv=s=x:p=0 "%output_folder%/frame_0001.png" > %output_folder%/frame_size.txt
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set /p frame_size=<%output_folder%/frame_size.txt
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echo Done, the images have been dumped to %output_folder% with frame size of %frame_size%.
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