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stream_loop generate a big size video [FFMPEG]
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-y -stream_loop 190 -i input.mp4 -c copy output.mp4


The command above works, but it generates video with huge size for video with 3min the size is 885 MB


2021-03-25 23:52:30.445 5687-6253/maa.abc.music_maker D/XXX: LOOPING VIDEO SIZE ===> 885.845MB


Or there's any way I can loop the video to match the audio length without using
-stream_loop

-
Unable to properly save video in android ffmpeg app
22 mars 2021, par connor449I am trying to record and save a video with an ffmpeg app on android 10. I'm very new to android/mobile development.


Here is my manifest file :


<?xml version="1.0" encoding="utf-8"?>
<manifest package="com.example.camera">
 
 
 

 


 
 <activity>
 
 
 </activity> <activity>
 
 <action></action>

 <category></category>
 
 </activity>
 


</manifest>


As you can see, I am specifying permission to read/write data.


Here is my mainActivity :


package com.example.camera

//import android.R
import android.content.DialogInterface
import android.content.pm.PackageManager
import android.os.Build
import android.os.Bundle
import android.widget.Toast
import androidx.appcompat.app.AlertDialog
import androidx.appcompat.app.AppCompatActivity
import androidx.core.app.ActivityCompat
import androidx.core.content.ContextCompat
import com.arthenica.mobileffmpeg.FFmpeg


const val EXTRA_MESSAGE = "com.example.myfirstapp.MESSAGE"

class MainActivity : AppCompatActivity() {
 override fun onCreate(savedInstanceState: Bundle?) {
 super.onCreate(savedInstanceState)
 setContentView(R.layout.activity_main)
 if (checkPermission()) {
 //main logic or main code
 FFmpeg.execute("-f android_camera -i 0:0 -r 30 -crf 0 -pixel_format yuv420p -t 00:00:05 test.mp4")

 // . write your main code to execute, It will execute if the permission is already given.
 } else {
 requestPermission()
 }
 }

 fun sendMessage(view:android.view.View){


 }

 private fun checkPermission(): Boolean {
 return if (ContextCompat.checkSelfPermission(this, android.Manifest.permission.CAMERA)
 != PackageManager.PERMISSION_GRANTED
 ) {
 // Permission is not granted
 false
 } else true
 }

 private fun requestPermission() {
 ActivityCompat.requestPermissions(
 this, arrayOf(android.Manifest.permission.CAMERA),
 PERMISSION_REQUEST_CODE
 )
 }

 override fun onRequestPermissionsResult(
 requestCode: Int,
 permissions: Array<string>,
 grantResults: IntArray
 ) {
 when (requestCode) {
 PERMISSION_REQUEST_CODE -> if (grantResults.size > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED
 ) {
 Toast.makeText(applicationContext, "Permission Granted", Toast.LENGTH_SHORT)
 .show()

 // main logic
 } else {
 Toast.makeText(applicationContext, "Permission Denied", Toast.LENGTH_SHORT)
 .show()
 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 if (ContextCompat.checkSelfPermission(this, android.Manifest.permission.CAMERA)
 != PackageManager.PERMISSION_GRANTED
 ) {
 showMessageOKCancel("You need to allow access permissions",
 DialogInterface.OnClickListener { dialog, which ->
 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 requestPermission()
 }
 })
 }
 }
 }
 }
 }

 private fun showMessageOKCancel(
 message: String,
 okListener: DialogInterface.OnClickListener
 ) {
 AlertDialog.Builder(this@MainActivity)
 .setMessage(message)
 .setPositiveButton("OK", okListener)
 .setNegativeButton("Cancel", null)
 .create()
 .show()
 }

 companion object {
 private const val PERMISSION_REQUEST_CODE = 200
 }
}

</string>

Here is my error message in the logs :


2021-03-22 16:31:34.509 9365-9448/com.example.camera I/AdrenoGLES: QUALCOMM build : 85037b7, I6e8b82193e
 Build Date : 12/19/19
 OpenGL ES Shader Compiler Version: EV031.27.05.03
 Local Branch : 
 Remote Branch : refs/tags/AU_LINUX_ANDROID_LA.UM.8.11.R1.10.00.00.576.016
 Remote Branch : NONE
 Reconstruct Branch : NOTHING
2021-03-22 16:31:34.509 9365-9448/com.example.camera I/AdrenoGLES: Build Config : S P 8.0.12 AArch64
2021-03-22 16:31:34.512 9365-9448/com.example.camera I/AdrenoGLES: PFP: 0x016ee187, ME: 0x00000000
2021-03-22 16:31:55.745 9365-9480/com.example.camera I/mobile-ffmpeg: ffmpeg version v4.4-dev-416
2021-03-22 16:31:55.745 9365-9480/com.example.camera I/mobile-ffmpeg: Copyright (c) 2000-2020 the FFmpeg developers
2021-03-22 16:31:55.746 9365-9480/com.example.camera I/mobile-ffmpeg: built with Android (6454773 based on r365631c2) clang version 9.0.8 (https://android.googlesource.com/toolchain/llvm-project 98c855489587874b2a325e7a516b99d838599c6f) (based on LLVM 9.0.8svn)
2021-03-22 16:31:55.746 9365-9480/com.example.camera I/mobile-ffmpeg: configuration: --cross-prefix=aarch64-linux-android- --sysroot=/files/android-sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot --prefix=/home/taner/Projects/mobile-ffmpeg/prebuilt/android-arm64/ffmpeg --pkg-config=/usr/bin/pkg-config --enable-version3 --arch=aarch64 --cpu=armv8-a --cc=aarch64-linux-android24-clang --cxx=aarch64-linux-android24-clang++ --extra-libs='-L/home/taner/Projects/mobile-ffmpeg/prebuilt/android-arm64/cpu-features/lib -lndk_compat' --target-os=android --enable-neon --enable-asm --enable-inline-asm --enable-cross-compile --enable-pic --enable-jni --enable-optimizations --enable-swscale --enable-shared --enable-v4l2-m2m --disable-outdev=fbdev --disable-indev=fbdev --enable-small --disable-openssl --disable-xmm-clobber-test --disable-debug --enable-lto --disable-neon-clobber-test --disable-programs --disable-postproc --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages --disable-static --disable-sndio --disable-schannel --disable-securetransport --disable-xlib --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --disable-videotoolbox --disable-audiotoolbox --disable-appkit --disable-alsa --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-gmp --enable-gnutls --enable-libmp3lame --enable-libass --enable-iconv --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libxml2 --enable-libopencore-amrnb --enable-libshine --enable-libspeex --enable-libwavpack --enable-libkvazaar --enable-libilbc --enable-libopus --enable-libsnappy --enable-libsoxr --enable-libaom --enable-libtwolame --disable-sdl2 --enable-libvo-amrwbenc --enable-zlib --enable-mediacodec
2021-03-22 16:31:55.746 9365-9480/com.example.camera I/mobile-ffmpeg: libavutil 56. 55.100 / 56. 55.100
2021-03-22 16:31:55.746 9365-9480/com.example.camera I/mobile-ffmpeg: libavcodec 58. 96.100 / 58. 96.100
2021-03-22 16:31:55.746 9365-9480/com.example.camera I/mobile-ffmpeg: libavformat 58. 48.100 / 58. 48.100
2021-03-22 16:31:55.746 9365-9480/com.example.camera I/mobile-ffmpeg: libavdevice 58. 11.101 / 58. 11.101
2021-03-22 16:31:55.746 9365-9480/com.example.camera I/mobile-ffmpeg: libavfilter 7. 87.100 / 7. 87.100
2021-03-22 16:31:55.746 9365-9480/com.example.camera I/mobile-ffmpeg: libswscale 5. 8.100 / 5. 8.100
2021-03-22 16:31:55.746 9365-9480/com.example.camera I/mobile-ffmpeg: libswresample 3. 8.100 / 3. 8.100
2021-03-22 16:31:55.750 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1638402! count 0, type 3
2021-03-22 16:31:55.750 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1638403! count 0, type 3
2021-03-22 16:31:55.750 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1835009! count 0, type 3
2021-03-22 16:31:55.750 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1835010! count 0, type 3
2021-03-22 16:31:55.750 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1638407! count 0, type 3
2021-03-22 16:31:55.750 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1638408! count 0, type 0
2021-03-22 16:31:55.751 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1638402! count 0, type 3
2021-03-22 16:31:55.751 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1638403! count 0, type 3
2021-03-22 16:31:55.751 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1835009! count 0, type 3
2021-03-22 16:31:55.751 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1835010! count 0, type 3
2021-03-22 16:31:55.751 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1638407! count 0, type 3
2021-03-22 16:31:55.751 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1638408! count 0, type 0
2021-03-22 16:31:55.797 9365-9480/com.example.camera W/mobile-ffmpeg: [android_camera @ 0x726794b600] Requested video_size 0x0 not available, falling back to 4608x3456
2021-03-22 16:31:55.804 9365-9480/com.example.camera I/mobile-ffmpeg: [android_camera @ 0x726794b600] Android camera capture session is active.
2021-03-22 16:31:56.097 9365-9480/com.example.camera I/mobile-ffmpeg: Input #0, android_camera, from '0:0':
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: Duration: 
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: N/A
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: , start: 
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: 28486.157692
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: , bitrate: 
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: N/A
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: Stream #0:0
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: : Video: rawvideo (NV21 / 0x3132564E), nv21, 4608x3456
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: , 
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: 30 fps, 
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: 30 tbr, 
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: 1000000000.00 tbn, 
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: 1000000000.00 tbc
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: Side data:
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: 
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: displaymatrix: rotation of -90.00 degrees
2021-03-22 16:31:56.098 9365-9480/com.example.camera W/mobile-ffmpeg: Codec AVOption crf (Select the quality for constant quality mode) specified for output file #0 (test.mp4) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
2021-03-22 16:31:56.098 9365-9480/com.example.camera E/mobile-ffmpeg: test.mp4: Read-only file system
2021-03-22 16:31:56.259 9365-9392/com.example.camera D/ACameraDevice: Device error received, code 5, frame number 1, request ID 0, subseq ID 0
2021-03-22 16:31:56.260 9365-9666/com.example.camera D/ACameraDevice: Device error received, code 5, frame number 2, request ID 0, subseq ID 0
2021-03-22 16:31:56.260 9365-9666/com.example.camera D/ACameraDevice: Device error received, code 5, frame number 3, request ID 0, subseq ID 0
2021-03-22 16:31:56.260 9365-9666/com.example.camera D/ACameraDevice: Device error received, code 3, frame number 4, request ID 0, subseq ID 0
2021-03-22 16:31:56.260 9365-9666/com.example.camera D/ACameraDevice: Device error received, code 3, frame number 5, request ID 0, subseq ID 0
2021-03-22 16:31:56.261 9365-9666/com.example.camera D/ACameraDevice: Device error received, code 3, frame number 6, request ID 0, subseq ID 0
2021-03-22 16:31:56.607 9365-9365/com.example.camera W/ACameraCaptureSession: Device is closed but session 0 is not notified
2021-03-22 16:31:56.608 9365-9480/com.example.camera I/mobile-ffmpeg: [android_camera @ 0x726794b600] Android camera capture session was closed.
2021-03-22 16:31:56.637 9365-9365/com.example.camera I/Choreographer: Skipped 58 frames! The application may be doing too much work on its main thread.
2021-03-22 16:31:56.678 9365-9448/com.example.camera I/OpenGLRenderer: Davey! duration=1018ms; Flags=1, IntendedVsync=17591318171185, Vsync=17592284837813, OldestInputEvent=9223372036854775807, NewestInputEvent=0, HandleInputStart=17592296938401, AnimationStart=17592297214183, PerformTraversalsStart=17592304079965, DrawStart=17592327848144, SyncQueued=17592334185436, SyncStart=17592334982572, IssueDrawCommandsStart=17592335124343, SwapBuffers=17592336519968, FrameCompleted=17592337443926, DequeueBufferDuration=165000, QueueBufferDuration=255000, 


The error I'm particularity confused about is :


2021-03-22 16:31:56.098 9365-9480/com.example.camera E/mobile-ffmpeg: test.mp4: Read-only file system


I thought I specified the appropriate permissions in the manifest file ? Please advise.


-
XABE : One or more errors occurred (FFmpeg)
22 mars 2021, par A FarmanbarI am trying to build video from images by below piece of code :


FFmpeg.SetExecutablesPath(dir);
FFmpeg.Conversions.New()
 .BuildVideoFromImages(files)
 .SetInputFrameRate(_video.Fps)
 .SetFrameRate(_video.Fps)
 .SetPixelFormat(PixelFormat.bgr24)
 .SetOutput(dir + "\\output.mp4").Start().Wait();


but I get below error


System.AggregateException: One or more errors occurred. (ffmpeg version n4.3.2-160-gfbb9368226 Copyright (c) 2000-2021 the FFmpeg developers
 built with gcc 9.3-win32 (GCC) 20200320
 configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --disable-w32threads --enable-pthreads --enable-iconv --enable-zlib --enable-libxml2 --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-opencl --enable-libvmaf --disable-vulkan --enable-libvorbis --enable-amf --enable-libaom --enable-avisynth --enable-libdav1d --enable-libdavs2 --enable-ffnvcodec --enable-cuda-llvm --disable-libglslang --enable-libgme --enable-libass --enable-libbluray --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvpx --enable-libwebp --enable-lv2 --enable-libmfx --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librav1e --enable-librubberband --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libtwolame --enable-libvidstab --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libzimg --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-libs=-lgomp
 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. 7.100
[mjpeg @ 0000018b7067a780] bits 217 is invalid
[mjpeg @ 0000018b7067a780] bits 253 is invalid
[mjpeg @ 0000018b7067a780] bits 159 is invalid
[mjpeg @ 0000018b7067a780] bits 234 is invalid
[mjpeg @ 0000018b7067a780] unable to decode APP fields: Invalid data found when processing input
 Last message repeated 2 times
[mjpeg @ 0000018b7067a780] Found EOI before any SOF, ignoring
[mjpeg @ 0000018b7067a780] unable to decode APP fields: Invalid data found when processing input
 Last message repeated 1 times
[mjpeg @ 0000018b7067a780] No JPEG data found in image
[mjpeg @ 0000018b7067a780] bits 95 is invalid
[mjpeg @ 0000018b7067a780] Found EOI before any SOF, ignoring
[mjpeg @ 0000018b7067a780] bits 133 is invalid
[mjpeg @ 0000018b7067a780] bits 31 is invalid
[mjpeg @ 0000018b7067a780] dqt: invalid precision
[mjpeg @ 0000018b7067a780] unable to decode APP fields: Invalid data found when processing input
 Last message repeated 8 times
[mjpeg @ 0000018b7067a780] No JPEG data found in image
[mjpeg @ 0000018b7067a780] Found EOI before any SOF, ignoring
[mjpeg @ 0000018b7067a780] bits 105 is invalid
[image2 @ 0000018b72294f80] decoding for stream 0 failed
[image2 @ 0000018b72294f80] Could not find codec parameters for stream 0 (Video: mjpeg (Progressive), none(bt470bg/unknown/unknown), lossless): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, image2, from 'C:\Users\a\AppData\Local\Temp\79b5fa99-f5a5-4788-b126-ef1549eb2086\img_%03d.jpg':
 Duration: 00:00:00.38, start: 0.000000, bitrate: N/A
 Stream #0:0: Video: mjpeg (Progressive), none(bt470bg/unknown/unknown), lossless, 29 fps, 29 tbr, 29 tbn, 29 tbc
File 'C:\Users\a\source\repos\ConsoleApp1\ConsoleApp1\bin\Debug\net5.0\output.mp4' already exists. Exiting.)
 ---> Xabe.FFmpeg.Exceptions.ConversionException: ffmpeg version n4.3.2-160-gfbb9368226 Copyright (c) 2000-2021 the FFmpeg developers
 built with gcc 9.3-win32 (GCC) 20200320
 configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --disable-w32threads --enable-pthreads --enable-iconv --enable-zlib --enable-libxml2 --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-opencl --enable-libvmaf --disable-vulkan --enable-libvorbis --enable-amf --enable-libaom --enable-avisynth --enable-libdav1d --enable-libdavs2 --enable-ffnvcodec --enable-cuda-llvm --disable-libglslang --enable-libgme --enable-libass --enable-libbluray --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvpx --enable-libwebp --enable-lv2 --enable-libmfx --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librav1e --enable-librubberband --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libtwolame --enable-libvidstab --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libzimg --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-libs=-lgomp
 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. 7.100
[mjpeg @ 0000018b7067a780] bits 217 is invalid
[mjpeg @ 0000018b7067a780] bits 253 is invalid
[mjpeg @ 0000018b7067a780] bits 159 is invalid
[mjpeg @ 0000018b7067a780] bits 234 is invalid
[mjpeg @ 0000018b7067a780] unable to decode APP fields: Invalid data found when processing input
 Last message repeated 2 times
[mjpeg @ 0000018b7067a780] Found EOI before any SOF, ignoring
[mjpeg @ 0000018b7067a780] unable to decode APP fields: Invalid data found when processing input
 Last message repeated 1 times
[mjpeg @ 0000018b7067a780] No JPEG data found in image
[mjpeg @ 0000018b7067a780] bits 95 is invalid
[mjpeg @ 0000018b7067a780] Found EOI before any SOF, ignoring
[mjpeg @ 0000018b7067a780] bits 133 is invalid
[mjpeg @ 0000018b7067a780] bits 31 is invalid
[mjpeg @ 0000018b7067a780] dqt: invalid precision
[mjpeg @ 0000018b7067a780] unable to decode APP fields: Invalid data found when processing input
 Last message repeated 8 times
[mjpeg @ 0000018b7067a780] No JPEG data found in image
[mjpeg @ 0000018b7067a780] Found EOI before any SOF, ignoring
[mjpeg @ 0000018b7067a780] bits 105 is invalid
[image2 @ 0000018b72294f80] decoding for stream 0 failed
[image2 @ 0000018b72294f80] Could not find codec parameters for stream 0 (Video: mjpeg (Progressive), none(bt470bg/unknown/unknown), lossless): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, image2, from 'C:\Users\a\AppData\Local\Temp\79b5fa99-f5a5-4788-b126-ef1549eb2086\img_%03d.jpg':
 Duration: 00:00:00.38, start: 0.000000, bitrate: N/A
 Stream #0:0: Video: mjpeg (Progressive), none(bt470bg/unknown/unknown), lossless, 29 fps, 29 tbr, 29 tbn, 29 tbc
File 'C:\Users\a\source\repos\ConsoleApp1\ConsoleApp1\bin\Debug\net5.0\output.mp4' already exists. Exiting.
 at Xabe.FFmpeg.FFmpegWrapper.<>c__DisplayClass11_0.<runprocess>b__0()
 at System.Threading.Tasks.Task`1.InnerInvoke()
 at System.Threading.Tasks.Task.<>c.<.cctor>b__277_0(Object obj)
 at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location ---
 at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
 at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread)
--- End of stack trace from previous location ---
 at Xabe.FFmpeg.Conversion.Start(String parameters, CancellationToken cancellationToken)
 --- End of inner exception stack trace ---
 at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
 at System.Threading.Tasks.Task.Wait()
 at ConsoleApp1.Program.Main(String[] args) in C:\Users\a\source\repos\ConsoleApp1\ConsoleApp1\Program.cs:line 79
</runprocess>

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