ffmpeg 查询视频信息
以JSON格式输出视频信息
ffprobe -v error -show_entries format -of json -i input.mp4
结果：
{
"format": {
"filename": ".\\fragment_0.mp4",
"nb_streams": 1,
"nb_programs": 0,
"format_name": "mov,mp4,m4a,3gp,3g2,mj2",
"format_long_name": "QuickTime / MOV",
"start_time": "0.000000",
"duration": "5.000000",
"size": "1231302",
"bit_rate": "1970083",
"probe_score": 100,
"tags": {
"major_brand": "isom",
"minor_version": "512",
"compatible_brands": "isomiso2avc1mp41",
"encoder": "Lavf60.23.100"
}
}
}