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Some videos fail to chromecast with error MEDIA_UNKNOWN
1er juin 2020, par JonasVautherinUsing
mkchromecastto cast local mp4 files, some videos work, and some don't (as in : the screen hangs on the blue chromecast logo, suggesting that the initial connection worked). I can reproduce exactly the issue described here.


So I decided to go one level lower, with
pychromecast, and try to see what actually happens when it hangs on the blue logo. I converted two videos to HLS format, and exposed them through an http server. The video that works withmkchromecastalso works with my setup, but the one that fails, well... fails on both. Withpychromecast, I don't get much more information than :




ERROR, code 100 : MEDIA_UNKNOWN.





From the Cast documentation, this error means :





The media element encountered an unknown error fired from platform. The media element encountered an error that did not indicate it's one of MediaError.MEDIA_ERR_*. This should be rare.





It is not rare for me at all, though. I thought that maybe the failing video was in an unsupported format, as described in the documentation. So I tried to compare both videos with the following command :



ffprobe -v quiet -print_format json -show_streams 



Video that works :



{
 "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": "1001/48000",
 "codec_tag_string": "avc1",
 "codec_tag": "0x31637661",
 "width": 1920,
 "height": 1080,
 "coded_width": 1920,
 "coded_height": 1088,
 "has_b_frames": 2,
 "sample_aspect_ratio": "1:1",
 "display_aspect_ratio": "16:9",
 "pix_fmt": "yuv420p",
 "level": 50,
 "chroma_location": "left",
 "refs": 1,
 "is_avc": "true",
 "nal_length_size": "4",
 "r_frame_rate": "24000/1001",
 "avg_frame_rate": "24000/1001",
 "time_base": "1/24000",
 "start_pts": 0,
 "start_time": "0.000000",
 "duration_ts": 47127080,
 "duration": "1963.628333",
 "bit_rate": "5527977",
 "bits_per_raw_sample": "8",
 "nb_frames": "47080",
 "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": {
 "language": "und",
 "handler_name": "VideoHandler"
 }
 },
 {
 "index": 1,
 "codec_name": "aac",
 "codec_long_name": "AAC (Advanced Audio Coding)",
 "profile": "LC",
 "codec_type": "audio",
 "codec_time_base": "1/48000",
 "codec_tag_string": "mp4a",
 "codec_tag": "0x6134706d",
 "sample_fmt": "fltp",
 "sample_rate": "48000",
 "channels": 2,
 "channel_layout": "stereo",
 "bits_per_sample": 0,
 "r_frame_rate": "0/0",
 "avg_frame_rate": "0/0",
 "time_base": "1/48000",
 "start_pts": 0,
 "start_time": "0.000000",
 "duration_ts": 94254528,
 "duration": "1963.636000",
 "bit_rate": "125776",
 "max_bit_rate": "125776",
 "nb_frames": "92048",
 "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": {
 "language": "und",
 "handler_name": "SoundHandler"
 }
 }
 ]
}



Video that does NOT work :



{ 
 "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": "125/5994",
 "codec_tag_string": "avc1",
 "codec_tag": "0x31637661",
 "width": 1920,
 "height": 1040,
 "coded_width": 1920,
 "coded_height": 1040,
 "has_b_frames": 2,
 "sample_aspect_ratio": "1:1",
 "display_aspect_ratio": "24:13",
 "pix_fmt": "yuv420p",
 "level": 41,
 "chroma_location": "left",
 "refs": 1,
 "is_avc": "true",
 "nal_length_size": "4",
 "r_frame_rate": "2997/125",
 "avg_frame_rate": "2997/125",
 "time_base": "1/11988",
 "start_pts": 0,
 "start_time": "0.000000",
 "duration_ts": 97032000,
 "duration": "8094.094094",
 "bit_rate": "2499644",
 "bits_per_raw_sample": "8",
 "nb_frames": "194064",
 "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": "2020-03-27T09:56:39.000000Z",
 "language": "und",
 "handler_name": "L-SMASH Video Media Handler"
 }
 },
 {
 "index": 1,
 "codec_name": "aac",
 "codec_long_name": "AAC (Advanced Audio Coding)",
 "profile": "LC",
 "codec_type": "audio",
 "codec_time_base": "1/48000",
 "codec_tag_string": "mp4a",
 "codec_tag": "0x6134706d",
 "sample_fmt": "fltp",
 "sample_rate": "48000",
 "channels": 6,
 "channel_layout": "5.1",
 "bits_per_sample": 0,
 "r_frame_rate": "0/0",
 "avg_frame_rate": "0/0",
 "time_base": "1/48000",
 "start_pts": 0,
 "start_time": "0.000000",
 "duration_ts": 388516320,
 "duration": "8094.090000",
 "bit_rate": "224000",
 "max_bit_rate": "224000",
 "nb_frames": "379413",
 "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": "2020-03-27T09:56:39.000000Z",
 "language": "eng",
 "handler_name": "SoundHandler"
 }
 }
 ]
}



For what I can see, the codecs are the same, and the only difference I can make is in the aspect ratio.



What could be the reason for this "MEDIA_UNKNOWN" error on the chromecast side ? Is there something more I could compare between those two videos ? Could it be that the chromecast fails because of the aspect ratio ?


-
ffmpeg GPU use cuvid with hwdownload will never finished, Appeared only recently
28 mai 2020, par tags btffmpeg :



ffmpeg version N-97331-g10a68cc Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
 configuration: --pkg-config-flags=--static --prefix=/usr/local/ffmpeg --bindir=/usr/local/ffmpeg/bin --extra-cflags='-I /usr/local/ffmpeg/include -I /usr/local/cuda/include/' --extra-ldflags='-L /usr/local/ffmpeg/lib -L /usr/local/cuda/lib64/' --extra-libs=-lpthread --enable-cuda --enable-cuda-nvcc --enable-cuvid --enable-libnpp --enable-gpl --enable-libass --enable-libfdk-aac --enable-vaapi --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree --enable-libaom --enable-nvenc



nvidia-msi



+-----------------------------------------------------------------------------+
| NVIDIA-SMI 440.82 Driver Version: 440.82 CUDA Version: 10.2 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 GeForce GTX 1080 Off | 00000000:02:00.0 Off | N/A |
| 0% 51C P8 13W / 200W | 18MiB / 8119MiB | 0% Default |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Processes: GPU Memory |
| GPU PID Type Process name Usage |
|=============================================================================|
| 0 23224 C ffmpeg 8MiB |
+-----------------------------------------------------------------------------+




if i use this command :



ffmpeg -re -threads 0 -loglevel debug -hwaccel cuvid -hwaccel_output_format cuda -i 1.mp4 -c:v h264_nvenc -c:a aac -ac 2 -b:a 128k -strict -2 -filter_complex "[0:v]scale_npp=1280:-2" ouzz2t.mp4



it will very fast.



but if i use this command :



ffmpeg -re -threads 0 -loglevel debug -vsync 0 -hwaccel cuvid -hwaccel_output_format cuda -hwaccel_device intel -i 1.mp4 -c:v h264_nvenc -c:a aac -ac 2 -b:a 128k -strict -2 -filter_complex "[0:v]scale_npp=1280:-2:format=yuv420p[tmp],[tmp]hwdownload,format=yuv420" ouzz2t.mp4



it will never finished, one 40MB mp4 will transcode 44 minutes and not finished.



as you see



+-----------------------------------------------------------------------------+
| Processes: GPU Memory |
| GPU PID Type Process name Usage |
|=============================================================================|
| 0 23224 C ffmpeg 8MiB |
+-----------------------------------------------------------------------------+



it will only use GPU memory 8mib.



and top will show :
enter image description here



delug log :



[AVHWDeviceContext @ 0x561cfaef92c0] Loaded lib: libcuda.so.1
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuInit
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuDeviceGetCount
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuDeviceGet
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuDeviceGetAttribute
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuDeviceGetName
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuDeviceComputeCapability
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuCtxCreate_v2
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuCtxSetLimit
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuCtxPushCurrent_v2
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuCtxPopCurrent_v2
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuCtxDestroy_v2
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuMemAlloc_v2
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuMemAllocPitch_v2
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuMemsetD8Async
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuMemFree_v2
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuMemcpy2D_v2
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuMemcpy2DAsync_v2
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuGetErrorName
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuGetErrorString
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuCtxGetDevice
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuDevicePrimaryCtxRetain
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuDevicePrimaryCtxRelease
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuDevicePrimaryCtxSetFlags
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuDevicePrimaryCtxGetState
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuDevicePrimaryCtxReset
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuStreamCreate
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuStreamQuery
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuStreamSynchronize
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuStreamDestroy_v2
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuStreamAddCallback
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuEventCreate
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuEventDestroy_v2
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuEventSynchronize
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuEventQuery
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuEventRecord
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuLaunchKernel
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuModuleLoadData
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuModuleUnload
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuModuleGetFunction
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuTexObjectCreate
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuTexObjectDestroy
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuGLGetDevices_v2
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuGraphicsGLRegisterImage
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuGraphicsUnregisterResource
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuGraphicsMapResources
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuGraphicsUnmapResources
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuGraphicsSubResourceGetMappedArray
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuDeviceGetUuid
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuImportExternalMemory
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuDestroyExternalMemory
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuExternalMemoryGetMappedBuffer
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuExternalMemoryGetMappedMipmappedArray
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuMipmappedArrayGetLevel
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuMipmappedArrayDestroy
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuImportExternalSemaphore
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuDestroyExternalSemaphore
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuSignalExternalSemaphoresAsync
[AVHWDeviceContext @ 0x561cfaef92c0] Loaded sym: cuWaitExternalSemaphoresAsync




Stop at Loaded sym : cuWaitExternalSemaphoresAsync, and ffmpeg will always 100% cpu and never finished.



Appeared only recently, last week it work fine, but today it work worse.



somebody know what happen to me ?


-
error when add arabic text to video ffmpeg c#
28 décembre 2020, par Fath Bakrii want to add Arabic annotation or text to video, i use ffmpeg version 4.3.1 in win 32 bit, here my code in c# :


private string AddVideo_Annotation(string text,int X,int Y)
 {
 try
 {

 string FFmpegPath = Utils.GetEXE_FFmpegPath();
 string path = Utils.GetProgramPath();
 //store outcome of process
 var errors = new StringBuilder();
 var output = new StringBuilder();
 var hadErrors = false;

 Process pdfprocess = new Process();

 
 //pdfprocess.StartInfo.LoadUserProfile = true;
 pdfprocess.StartInfo.RedirectStandardOutput = true;
 pdfprocess.StartInfo.RedirectStandardError = true;
 pdfprocess.StartInfo.UseShellExecute = false;
 
 pdfprocess.StartInfo.FileName = FFmpegPath;
 //text_shaping=1
 pdfprocess.StartInfo.Arguments = "-i \""+filePath+ "\" -vf -enable-libfribidi drawtext=\"text_shaping=1:text=\'" + text+ "\':x=" + X+":y="+Y+ ":fontsize=24:fontcolor=Red\" -c:a copy \"" + path + "\\out.mp4\"";
 
 //pdfprocess.StartInfo.WorkingDirectory = @"C:\Program Files\LibreOffice\program\";
 pdfprocess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;

 pdfprocess.EnableRaisingEvents = true;

 // capture normal output
 pdfprocess.OutputDataReceived += (s, d) => {
 output.Append(d.Data);
 };

 // Capture error output
 pdfprocess.ErrorDataReceived += (s, d) => {
 if (!hadErrors)
 {
 hadErrors = !String.IsNullOrEmpty(d.Data);
 }
 errors.Append(d.Data);
 };
 pdfprocess.Start();
 pdfprocess.BeginErrorReadLine();
 pdfprocess.BeginOutputReadLine();
 try
 {
 while (pdfprocess.MainWindowHandle == IntPtr.Zero)
 {
 // Discard cached information about the process
 // because MainWindowHandle might be cached.
 pdfprocess.Refresh();
 
 Thread.Sleep(200);

 }
 }
 catch { }
 Thread.Sleep(2000);
 pdfprocess.WaitForExit();
 while ((Process.GetProcessesByName("ffmpeg").Length > 0))
 {
 Thread.Sleep(200);
 }


 string stderr = errors.ToString();

 if (pdfprocess.ExitCode != 0)
 {
 //MessageBox.Show("error:" + stderr);

 throw new Exception("FFmpeg.exe has exit wit code " + pdfprocess.ExitCode+"\n"+ stderr);
 }
 return path + "\\out"+new FileInfo( filePath).Extension;
 }
 catch(Exception ex)
 {
 TXT_AnnotationText.Text = ex.Message + "\n" + ex.StackTrace.ToString();
 MessageBox.Show(ex.Message + "\n" + ex.StackTrace.ToString());
 throw ex;
 }
 }



i get this error message :


FFmpeg.exe has exit wit code 1
ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 10.2.1 (GCC) 20200726 configuration : —enable-gpl —enable-version3 —enable-sdl2 —enable-fontconfig —enable-gnutls —enable-iconv —enable-libass —enable-libdav1d —enable-libbluray —enable-libfreetype —enable-libmp3lame —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libopenjpeg —enable-libopus —enable-libshine —enable-libsnappy —enable-libsoxr —enable-libsrt —enable-libtheora —enable-libtwolame —enable-libvpx —enable-libwavpack —enable-libwebp —enable-libx264 —enable-libx265 —enable-libxml2 —enable-libzimg —enable-lzma —enable-zlib —enable-gmp —enable-libvidstab —enable-libvmaf —enable-libvorbis —enable-libvo-amrwbenc —enable-libmysofa —enable-libspeex —enable-libxvid —enable-libaom —enable-libgsm —disable-w32threads —enable-libmfx —enable-ffnvcodec —enable-cuda-llvm —enable-cuvid —enable-d3d11va —enable-nvenc —enable-nvdec —enable-dxva2 —enable-avisynth —enable-libopenmpt —enable-amf libavutil 56. 51.100 / 56. 51.100 libavcodec 58. 91.100 / 58. 91.100 libavformat 58. 45.100 / 58. 45.100 libavdevice 58. 10.100 / 58. 10.100 libavfilter 7. 85.100 / 7. 85.100 libswscale 5. 7.100 / 5. 7.100 libswresample 3. 7.100 / 3. 7.100 libpostproc 55. 7.100 / 55. 7.100Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'D :\a.mp4' : Metadata : major_brand : mp42 minor_version : 0 compatible_brands : isommp42 creation_time : 2020-12-02T01:57:02.000000Z Duration : 00:01:37.70, start : 0.000000, bitrate : 125 kb/s Stream #0:0(eng) : Video : h264 (Main) (avc1 / 0x31637661), yuv420p(tv), 1280x662 [SAR 1:1 DAR 640:331], 124 kb/s, 30 fps, 30 tbr, 30k tbn, 60 tbc (default) Metadata : creation_time : 2020-12-02T01:57:03.000000Z handler_name : Mainconcept MP4 Video Media Handler encoder : AVC Coding[NULL @ 05d306c0] Unable to find a suitable output format for 'drawtext=text_shaping=1:text='ظٹظ„ظٹظٹظ„ ظٹظ„ظٹط¨ظ„':x=200:y=200:fontsize=24:fontcolor=Red'drawtext=text_shaping=1:text='ظٹظ„ظٹظٹظ„ ظٹظ„ظٹط¨ظ„':x=200:y=200:fontsize=24:fontcolor=Red : Invalid argument
at EasyWhatsappSender.UserControls.UControl_VideoAudioPreview_Annotation.AddVideo_Annotation(String text, Int32 X, Int32 Y) in C :\Users\FathBakri\Documents\Visual Studio 2017\Projects\MediaViewer\UserControls\UControl_VideoAudioPreview_Annotation.cs:line 239


the error happen when i use text_shaping=1 , if i omit it and use Arabic text it display in symbols and not correct
how to fix it. Thanks for help

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