Mi sistema es centos8
Error informado por el sistema:
System.InvalidOperationException: Cannot start process because a file name has not been provided.
at System.Diagnostics.Process.Start() in /_/src/libraries/System.Diagnostics.Process/src/System/Diagnostics/Process.cs:line 1207
at WebNetCore5_Img_Storage.Model.Tool.GetVideoInfoByFFmpeg.GetVideoInfo(String videoPath)
at WebNetCore5_Img_Storage.Controllers.FileUploadController.<>c__DisplayClass5_0.<<UploadBigFile>b__0>d.MoveNext()
Este error suele ser el comando incorrecto
. Es mejor no tener comillas en el comando;
ffmpeg obtiene la información amplia y de alta resolución del video, y los datos de retorno son json
ffprobe -select_streams v -show_entries format=duration,size,bit_rate,filename -show_streams -v quiet -of json -i /upload/20210308_163751_259_a3f4.mp4
Devolver datos
{
"streams": [
{
"index": 0,
"codec_name": "h264",
"codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10",
"profile": "High",
"codec_type": "video",
"codec_time_base": "3157/187500",
"codec_tag_string": "avc1",
"codec_tag": "0x31637661",
"width": 1920,
"height": 1080,
"coded_width": 1920,
"coded_height": 1088,
"has_b_frames": 0,
"sample_aspect_ratio": "1:1",
"display_aspect_ratio": "16:9",
"pix_fmt": "yuv420p",
"level": 40,
"color_range": "tv",
"color_space": "bt709",
"color_transfer": "bt709",
"color_primaries": "bt709",
"chroma_location": "left",
"refs": 1,
"is_avc": "true",
"nal_length_size": "4",
"r_frame_rate": "179/6",
"avg_frame_rate": "93750/3157",
"time_base": "1/90000",
"start_pts": 0,
"start_time": "0.000000",
"duration_ts": 530376,
"duration": "5.893067",
"bit_rate": "14239766",
"bits_per_raw_sample": "8",
"nb_frames": "175",
"disposition": {
"default": 1,
"dub": 0,
"original": 0,
"comment": 0,
"lyrics": 0,
"karaoke": 0,
"forced": 0,
"hearing_impaired": 0,
"visual_impaired": 0,
"clean_effects": 0,
"attached_pic": 0,
"timed_thumbnails": 0
},
"tags": {
"creation_time": "2021-03-07T03:12:33.000000Z",
"language": "eng",
"handler_name": "VideoHandle"
}
}
],
"format": {
"filename": "/wzfgs_img_storage/tuku.img_linux/upload/20210308_173136_349_2ca0.mp4",
"duration": "5.893000",
"size": "11033567",
"bit_rate": "14978539"
}
}
var process = new Process
{
StartInfo = new ProcessStartInfo("ffprobe", "-select_streams v -show_entries format=duration,size,bit_rate,filename -show_streams -v quiet -of json -i /upload/20210308_163751_259_a3f4.mp4")
{
RedirectStandardOutput = true,
UseShellExecute = false
}
};
process.Start();
//视频信息json
string videoJson = process.StandardOutput.ReadToEnd();
Console.WriteLine(videoJson);
process.WaitForExit();
process.Dispose();