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ラジオ動画(静止画の動画化及び音声の合成)を作成するスクリプト
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| #!/bin/bash | |
| # 参考: ffmpegで静止画と音声をくっつけた映像を作る https://qiita.com/ottyajp/items/4cd5280b4b8e8ff331e1 | |
| CMDNAME=`basename $0` | |
| if [ $# -ne 6 ]; then | |
| echo "Usage: $CMDNAME [-i image] [-s sound] [-o output]" 1>&2 | |
| exit 1 | |
| fi | |
| while getopts i:s:o: OPT | |
| do | |
| case $OPT in | |
| "i" ) image="$OPTARG";; | |
| "s" ) sound="$OPTARG";; | |
| "o" ) output="$OPTARG";; | |
| * ) echo "Usage: $CMDNAME [-i image] [-s sound] [-o output]" 1>&2 | |
| exit 1;; | |
| esac | |
| done | |
| # 音声ファイルの長さ取得 | |
| dur=`avprobe $sound 2>&1 | grep Duration | sed -e s/Duration:\ // -e s/,.*//` | |
| # 静止動画生成 | |
| # H.265なmp4を生成 | |
| ffmpeg -f image2 -r 1 -loop 1 -t $dur -i $image temp.mp4 -s 1280x720 -c:v libx265 -tune ssim -y > /dev/null 2>&1 | |
| # 静止動画に音声追加 | |
| # TODO: 更新を標準出力で出せるようにする | |
| ffmpeg -i temp.mp4 -i $sound -s 1280x720 -c:a libmp3lame -c:v libx265 -tune ssim -y $output > /dev/null 2>&1 | |
| rm temp.mp4 | |
| # 動画出力結果 | |
| avprobe $output 2>&1 | grep -e Duration -e Stream | sed 's/^[ \t]*//' | sed -n 's/\(Duration: [^,]*\).*/\1/p; s/.*\(Video: [^(]*\).* \([0-9][0-9]*x[0-9][0-9]*\).*/\1\2/p; s/.*.*\(Audio: [^(]*\).*/\1/p;' | |
| exit | |
| # 結果例 | |
| # $ ./encode -i base.png -s radio.mp3 -o dest.mp4 | |
| # Duration: 00:18:04.40 | |
| # Video: hevc 1280x720 | |
| # Audio: mp3 (mp4a / 0x6134706D) |
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