如何运行这个文件?
infile ="video.avi"
tmpfile="video_tmp.mp4"
outfile="video.mp4"
options="-vcodec libx264 -b 512k -flags +loop+mv4 -cmp 256 \
-partitions +parti4x4+parti8x8+partp4x4+partp8x8+partb8x8 \
-me_method hex -subq 7 -trellis 1 -refs 5 -bf 3 \
-flags2 +bpyramid+wpred+mixed_refs+dct8x8 -coder 1 -me_range 16 \
-g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -qmin 10\
-qmax 51 -qdiff 4"
ffmpeg -y -i "$infile" -an -pass 1 -threads 2 $options "$tmpfile"
ffmpeg -y -i "$infile" -acodec libfaac -ar 44100 -ab 96k -pass 2 -threads 2 $options "$tmpfile"
qt-faststart "$tmpfile" "$outfile"从这里拿来的https://gist.github.com/vadimii/4621929
Shell命令完全超出了我的范围,任何帮助都将不胜感激。
发布于 2013-10-11 12:55:47
根据评论中所写的内容:
infile =$1
tmpfile="video_tmp.mp4"
outfile=$2
options="-vcodec libx264 -b 512k -flags +loop+mv4 -cmp 256 \
-partitions +parti4x4+parti8x8+partp4x4+partp8x8+partb8x8 \
-me_method hex -subq 7 -trellis 1 -refs 5 -bf 3 \
-flags2 +bpyramid+wpred+mixed_refs+dct8x8 -coder 1 -me_range 16 \
-g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -qmin 10\
-qmax 51 -qdiff 4"
ffmpeg -y -i "$infile" -an -pass 1 -threads 2 $options "$tmpfile"
ffmpeg -y -i "$infile" -acodec libfaac -ar 44100 -ab 96k -pass 2 -threads 2 $options "$tmpfile"
qt-faststart "$tmpfile" "$outfile"要执行它:
my_script。chmod +x my_script。或
/bin/bash my_script input_file output_filehttps://stackoverflow.com/questions/19318212
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