10 mai

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 13:02
  Using chunks of MP4 file for thumbnails - Moritz Mahringer Newest 'ffmpeg' Questions - Stack Overflow
  I want to extract single frames (as thumbs) from videos, without having to download the full video file. I would like to just read the mp4 header (the info should be in the moov atom) and then download the required byte ranges. Afaik thats what browsers (HTML5 video) do when you skip to an unbuffered part I already looked at: How can HTML5 video's byte-range requests (pseudo-streaming) work? but i can't figure out how to use it with ffmpeg for example. Thanks a (...)
• 13:25
  File conversion to mp3 returning failure everytime using flutter package ffmpeg_kit_flutter - Sanath balthar Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to convert a .wav audio file generated from a flutter's text to speech package - "flutter_tts" to mp3 file but it is failing everytime. I have written the below code for file conversion. I have imported the package ffmpeg_kit_flutter. It doesnt even show why the conversion is failing. I have looked up in stackoverflow and other sites but could not find any relevant solutions. I am using vscode as editor. I have attached flutter doctor output below as well. Could anyone please guide me? Let me know if you need more information. List command = [  (...)
• 09:35
  FFmpeg not downloading m3u8 live streams - user24970826 Newest 'ffmpeg' Questions - Stack Overflow
  maybe someone can help me. I just installed ffmpeg on my Windows 10 system. I downloaded the latest release from the gyan.dev website, and i already tried different builds too, but every time I try to download an m3u8 live stream, it gives me these errors: [tls ⓐ 00000237a151f580] Error in the pull function. [tls ⓐ 00000237a151f580] IO error: End of file [in#0 ⓐ 00000237a151ed00] Error opening input: End of file Error opening input file (...)
• 08:52
  Why doesn't the ffmpeg output display the stream in the browser? - Tebyy Newest 'ffmpeg' Questions - Stack Overflow
  Why is it that when I create a livestream in Python using ffmpeg, and then I open the browser and visit the page, the page keeps loading continuously, and in PyCharm logs, I see binary data? There are no errors displayed, and the code seems correct to me. I even tried saving to a file for testing purposes, and when I play the video, everything works fine. Does anyone know what might be wrong here? Code: def generate_frames(): cap = cv2.VideoCapture(os.path.normpath(app_root_dir().joinpath("data/temp", "video-979257305707693982.mp4"))) while cap.isOpened(): ret, (...)
• 07:05
  How to set min, max and avg bitrate or vbv delay using FFMPEG for livestream in Python? - Tebyy Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to set the minimum, maximum, and average bitrate or vbv delay for a WebM livestream in Python using FFMPEG, but it still shows "0" or "N/A". I've checked the documentation, and everything seems correct. I've also searched for solutions online, but none of them have solved my problem. Does anyone know what I might be doing wrong and how it should be done correctly? FFMPEG Command: ffmpeg_command = [ 'ffmpeg', '-f', 'rawvideo', '-pix_fmt', 'bgr24', '-s:v', '1920x1080', (...)
• 06:48
  How to find the loudness of an audio buffer in Node.js? - Parshant Khichi Newest 'ffmpeg' Questions - Stack Overflow
  I have a buffer containing audio data representing a voice recording, and I need to determine its loudness in Node.js. I tried using the fluent-ffmpeg library, as it seemed to offer functionality for audio analysis. However, my attempts to use it to analyze the loudness of the audio buffers were unsuccessful. Could someone please suggest a reliable approach or provide a code example to help me analyze the loudness of the audio buffers accurately in Node.js? Any guidance or assistance would be greatly (...)
• 04:15
  ffmpeg h264_amf on Windows 10 fails with CreateComponent(AMFVideoEncoderVCE_AVC) failed - wallllaw100 Newest 'ffmpeg' Questions - Stack Overflow
  Trying to use hardware encoding with ffmpeg (version 7.0-essentials_build-www.gyan.dev) on Windows 10 Command ffmpeg -i -v verbose -c:v h264_amf -acodec copy -y Error [h264_amf ⓐ 0000014dc3388580] AMF initialisation succeeded via D3D11. [h264_amf ⓐ 0000014dc3388900] CreateComponent(AMFVideoEncoderVCE_AVC) failed with error 36 [vost#0:0/h264_amf ⓐ 0000014dc3bf7c80] Error while opening encoder - maybe incorrect parameters such as bit_rate, rate, width or height. How to resolve this (...)
• 03:01
  ffmpeg, stretch audio to x seconds - Max Doumit Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to make an audio file be exactly x second. So far i tried using the atempo filter by doing the following calculation Audio length / desired length = atempo. But this is not accurate, and I am having to tweak the tempo manually to get it to an exact fit. Are there any other solutions to get this work ? Or am I doing this incorrectly? My original file is a wav file, and my output in an mp3 Here is a sample command ffmpeg -i input.wav -codec:a libmp3lame -filter:a "atempo=0.9992323" -b:a 320K output.mp3 UPDATE: I was able to (...)
• 00:04
  ffmpeg input stream's fps detection bug [closed] - I have 10 fingers Newest 'ffmpeg' Questions - Stack Overflow
  I have ffmpeg setup which produces rtmp stream from remote rtsp stream. The rtsp stream comes from ip camera which support multiple profiles. Each profile has 1080p 30 fps, 1080p 15 fps. The weird thing is that when ffmpeg analyze its input stream, one profile is recognized as 1 fps as below Input #0, rtsp, from 'rtsp://...': Metadata: title : Media Presentation comment : samsung Duration: N/A, start: 0.064144, bitrate: N/A Stream #0:0: Video: h264 (High), yuvj420p(pc, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 1 fps, 1 tbr, 90k tbn, 2 (...)

9 mai

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 20:08
  Can't remove console.logs from ffmpeg-kit - effendi Newest 'ffmpeg' Questions - Stack Overflow
  I need to remove all kind of logs from my android app which uses ffmpeg-kit. I commented out all the Log.xx calls in the java files and they are no longer showing up. However, I still get those: ffmpeg-kit usap64 I Loading ffmpeg-kit. ffmpeg-kit usap64 I Loaded ffmpeg-kit-video-arm64-v8a-6.0-lts-20230913. ffmpeg-kit usap64 D Async callback block started. I can see the first two are console.logs in index.js which I commented out. But they still show in the logs. Here's what I tried: remove node_modules npm install comment out all Log.xx calls in (...) -- ffmpeg-kit, index.js
• 19:45
  FFMpeg Logo Different Sepration [closed] - unkp Newest 'ffmpeg' Questions - Stack Overflow
  Simple: 1.Want a logo to be only for specific times on a video, motivation : reduce length of the process if possible. the code used for logo is this one: ffmpeg -i output0.mp4 -vf "movie=logo.png [watermark]; [watermark]scale=220x220 [watermark2];[in][watermark2] overlay=main_w-overlay_w-10:main_h-overlay_h-10 [out]" output0logo0done.mp4 Would Want like something like this if possible: keep the logo for 1 minute then 4 minutes later keep the logo again for 1 minute. Tried searching about this request, the answers found were related to -> split (...)
• 19:34
  FFMpeg Logo Different Sepration [Beginner] - unkp Newest 'ffmpeg' Questions - Stack Overflow
  Simple: 1.Want a logo to be only for specific times on a video, motivation : reduce length of the process if possible. the code used for logo is this one: ffmpeg -i output0.mp4 -vf "movie=logo.png [watermark]; [watermark]scale=220x220 [watermark2];[in][watermark2] overlay=main_w-overlay_w-10:main_h-overlay_h-10 [out]" output0logo0done.mp4 Would Want like something like this if possible: keep the logo for 1 minute then 4 minutes later keep the logo again for 1 minute. Tried searching about this request, the answers found were related to -> split (...)
• 19:19
  OpenGL to FFMpeg encode - Ian A McElhenny Newest 'ffmpeg' Questions - Stack Overflow
  I have a opengl buffer that I need to forward directly to ffmpeg to do the nvenc based h264 encoding. My current way of doing this is glReadPixels to get the pixels out of the frame buffer and then passing that pointer into ffmpeg such that it can encode the frame into H264 packets for RTSP. However, this is bad because I have to copy bytes out of the GPU ram into CPU ram, to only copy them back into the GPU for encoding.
• 16:50
  Using libav libraries directly in c++ project instead of using Ffmpeg command external process [closed] - dhatchina Newest 'ffmpeg' Questions - Stack Overflow
  i'm receiving input as raw H264 NAL units contiguously from one port and mp2 audio from the another port .i need to multiplex this both and encode as a mpeg2 transport stream. To achieve this now i'm executing required ffmpeg command as a process inside my c++ project and i get the output perfectly. but, the problem is i can't install ffmpeg in client system manually and i felt just for this single purpose using ffmpeg takes more cpu utilization also and handling external process also bit not reliable. so , i need to add required libav (ex: libavcodec (...)
• 15:52
  ffmpeg's invalid input stream fps causes low latency [closed] - I have 10 fingers Newest 'ffmpeg' Questions - Stack Overflow
  I have ffmpeg setup which produces rtmp stream from remote rtsp stream. The rtsp stream comes from ip camera which support multiple profiles. Each profile has 1080p 30 fps, 1080p 15 fps. The weird thing is that when ffmpeg analyze its input stream, one profile is recognized as 1 fps as below Input #0, rtsp, from 'rtsp://...': Metadata: title : Media Presentation comment : samsung Duration: N/A, start: 0.064144, bitrate: N/A Stream #0:0: Video: h264 (High), yuvj420p(pc, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 1 fps, 1 tbr, 90k tbn, 2 (...)
• 15:34
  FFMPEG not working as intended in a bash script - rcp Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to get the mean volume of a recording and the echo the expected value. When I do it line by line, everything works fine, but as soon as I execute it in a bash script, I have a problem with the FFMPEG line. I identified the problem, which is that &> analysis is not doing anything for some reason and instead of saving the output in a file it prints it in the shell. I don't know how to fix it since it works fine when not in a script. #!/bin/bash # Record sound sh aud2.sh # Run ff.sh in the background to analyze volume and save (...) -- Expected output when line by line, Actual output in bash script
• 11:46
  Combining an audio file with video file in python - Fahadkalis Newest 'ffmpeg' Questions - Stack Overflow
  I am writing a program in Python on RaspberryPi(Raspbian), to combine / merge an audio file with video file. Format of Audio file is WAVE Format of Video file is h264 Audio and video already recorded and created at same time successfully, I just need to merge them now. Can you please guide me on how do I do that?
• 11:20
  Concat video and image with ffmpeg [closed] - Remi_la Newest 'ffmpeg' Questions - Stack Overflow
  I encouter an issue when I try to concat image and video with FFMPEG. When I concat a video at the beginning it works well. However when the video is not at the beginning it throws an error : "ffmpeg exited with code 234" To illustrate this, here is a command that works : ffmpeg -loop 1 -t 7 -framerate 60 -i file2.jpg -loop 1 -t 7 -framerate 60 -i file2.jpg -loop 1 -t 7 -framerate 60 -i file3.jpg -i file4.mp4 -i file5.mp3 -y -filter_complex (...)
• 11:31
  Reducing the Quality Loss experienced on Videos when applying Bicubic Interpolation when Upscaling? - Solomon Williams Newest 'ffmpeg' Questions - Stack Overflow
  VMAF Quality Loss when applying bicubic interpolation to a video when upscaling with ffmpeg First of all, I'm a bit of a beginner to this specific topic therefore any advice would be greatly appreciated! For a project that I've currently been working on, I've been essentially trying to simulate the requirement to downscale/upscale resolution when transmitting video files using ffmpeg. During this process, I have found that whenever I've needed to upscale resolution on a transcoded file via bicubic interpolation, the resultant video will have lost more VMAF (...) -- enter image description here
• 05:57
  how to make less encryption keys for FFMPEG - vinod Newest 'ffmpeg' Questions - Stack Overflow
  I am using FFMPEG to encrypt my uploaded videos. I am using laravel. I've used a ffmpeg laravel package. $highBitrate = (new X264)->setKiloBitrate(25); //start encrypting fulllength files FFMpeg::fromDisk('public') ->open($filePath) // Provide the path relative to the 'local' disk ->exportForHLS() ->withRotatingEncryptionKey(function ($filename, $contents) use ($folderName,$uniquen_number) Storage::disk('public')->put('uploads/Videos_to_Revise/'.$folderName.'/'.$uniquen_number . (...)
• 00:57
  Edge of text clipped a few pixels in ffmpeg - THEMOUNTAINSANDTHESKIES Newest 'ffmpeg' Questions - Stack Overflow
  Trying to make a short video of a background image with text and some background audio. It's functional, but the right side of each line of my text is always clipped a few pixels. What am I missing? Here's my python code (which includes the ffmpeg command): font_size = 100 text='Example Text Example Text \\n Example Text' font_path = 'Bangers-Regular.ttf' image_path = 'background.jpg' audio_path = 'audio.wav' duration = 15 #or whatever the audio's length is output_path = (...) --

8 mai

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 12:20
  React JS video compressor - Muhammad Ali Newest 'ffmpeg' Questions - Stack Overflow
  I tried it and sure enough I'm not typing the correct command in exec. Please let me know if you have a video resizing command for exec. const compress = async () => const videoURL = "../public/videos/20240508_095425.mp4"; const ffmpeg = ffmpegRef.current; await ffmpeg.writeFile("input.mp4", await fetchFile(videoURL)); await ffmpeg.exec([ "-i", "input.mp4", "-c:v", "copy", "-c:a", "aac", "-b:a", "128k", "output.mp4", ]); const fileData = await ffmpeg.readFile("output.mp4"); const data = new (...)
• 16:30
  How do I correctly pause and resume recording with ffmpeg without messing with the fps? [closed] - 10typesofpeople Newest 'ffmpeg' Questions - Stack Overflow
  I am recording desktop video and audio with ffmpeg. I am controlling the process with c#. Simplified, my ffmpeg arguments are "ffmpeg -f gdigrab -framerate 30 -i desktop -preset ultrafast -pix_fmt yuv420p output.mp4" I have some functionality to pause and resume the recording, essentially just suspending and resuming the process. This works, however, it leaves the paused section in the video, just one frame for the entire duration. To fix this, I added "-vf setpts=N/FR/TB" yo the arguments. This resolved that issue, but while recording my framerate was 1.3 fps rather than 30 and the (...)
• 23:25
  Embed custom meta-data (bounding boxes) into HLS video stream - Alexender Iotko Newest 'ffmpeg' Questions - Stack Overflow
  I'd like to embed bounding boxes, labels, etc. into live video stream to optionally draw them thereafter on the client-side in web-browser and looking for a way how to do. Could you please give me a hint how to insert the meta-data "on fly" and which player might be used for it?
• 17:29
  PyQt QGraphicsScene Render Scene As Video Format - Alex Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to allow the user to export the scene as an mp4 (video format), the items of the scene consists of QGraphicsVideoItem and multiple QGraphicsTextItem, I need to export the scene as it will allow the user to save the video with the text items. I've found one of the ways to do this but the issue is that it will take hours for a simple 5 seconds videos as it saves every image to a byte to create a video, every image is a millisecond. If I change from millisecond to seconds it could speed up but the video will not look as smooth, is there a more efficient way of doing (...)
• 17:17
  ffmpeg filters inserting escape characters in python [duplicate] - jdauthre Newest 'ffmpeg' Questions - Stack Overflow
  I am running ffmpeg in python as a subprocess. I want to burn the subtitles into a video. Just using ffmpeg (commandline without python in windows) the following works: ffmpeg.exe" -y -i "input_file" -vf "subtitles= \\'input_file_path\\' :si=0" -acodec copy "output_file_path" the \\ escape characters are required by ffmpeg for special characters within a filter, However trying to replicate this within a python subprocess has proved problematic, here is one of many failed attempts: command = (...)
• 15:22
  How can I convert a video raw frame to image using ffmpeg [closed] - Sean Newest 'ffmpeg' Questions - Stack Overflow
  I have a video stream (from a DJI Drone) coming to a websocket server.The websocket server saves the data using the technique described in this answer. Technical Details The frame is : From a H265 video generated by the drone has size: height 1080 , width 1440 FPS : 30 Size: 45235 This is the raw video data as we receive from the getData() function of the video frame returned by the addStreamDataListener method Goal I want that the saved frame (I have noted the peculiar size) to be converted to ffpmeg. Attempt(s) to (...) -- getData() function, addStreamDataListener method, github
• 14:58
  pylwdrone and ffmpeg-python: pipe:0: Invalid data found when processing input - Saail Chavan Newest 'ffmpeg' Questions - Stack Overflow
  I am using a lewei camera on my drone and i have managed to get the stream using https://github.com/meekworth/pylwdrone, i want to do basic image processing like face or object detection or qr code scan which i am unable to do when i use this command in terminal: $ pylwdrone stream start --out-file - | ffplay -i -fflags nobuffer -flags low_delay -probesize 32 -sync ext - i get a clear feed with no errors enter image description here When i am using the script in python i am getting errors and the feed is bit lagged and skips frames pipe:0: Invalid data (...) -- https://github.com/meekworth/pylwdrone, enter image description here
• 15:07
  I use ffmpeg to format videos according to tik-toke standards - John Red Newest 'ffmpeg' Questions - Stack Overflow
  I use ffmpeg to format videos according to tik-toke standards, but I don't know why videos are not cropped and lose quality. const transcode = async () => const ffmpeg = ffmpegRef.current; await ffmpeg.writeFile('input.mp4', await fetchFile(file)); await ffmpeg.exec([ '-i', 'input.mp4', '-vf', 'scale=1080:1920,crop=ih*(9/16):ih', 'output.mp4' ]); const data = await ffmpeg.readFile('output.mp4'); videoRef.current.src = URL.createObjectURL(new Blob([data.buffer], (...)
• 13:21
  Can't reproduce a mp4 video in any of my browsers (Ubuntu 22.04.4) - user3303019 Newest 'ffmpeg' Questions - Stack Overflow
  This one is weird. I can't reproduce the following video in the browser (tried brave, chrome, firefox and edge). https://a-pop.stg.intuitivo.ai/assets/animations/wowMomentOpenDoor.mp4 I have installed all sorts of codecs I may need and the regular video player plays the file no problem. For some reason it was working on Brave up until last week and it wasn't on chrome. It only happens on Linux apparently. Windows, Mac, android and iOS have no problem with the browser playing the animation. I don't have a clue what could be (...) -- https://a-pop.stg.intuitivo.ai/assets/animations/wowMomentOpenDoor.mp4
• 11:54
  Is there a way to improve/ decode .h264 stream and use opencv for image processing - Saail Chavan Newest 'ffmpeg' Questions - Stack Overflow
  I am using a lewei camera on my drone and i have managed to get the stream using https://github.com/meekworth/pylwdrone, i want to do basic image processing like face or object detection or qr code scan which i am unable to do when i use this command in terminal: $ pylwdrone stream start --out-file - | ffplay -i -fflags nobuffer -flags low_delay -probesize 32 -sync ext - i get a clear feed with no errors enter image description here When i am using the script in python i am getting errors and the feed is bit lagged and skips frames import cv2 import (...) -- https://github.com/meekworth/pylwdrone, enter image description here, enter image description here
• 11:00
  Using ffmpeg to extract multiple images from video and get timestamp of extracted images - jogall Newest 'ffmpeg' Questions - Stack Overflow
  I'm using ffmpeg to extract one frame (as a jpeg) every five minutes from videos, and piping the output from the console to a text file in order to get the exact timestamps of the extracted frames. The command I'm using is: ffmpeg -i input.avi -ss 00:10:00 -vframes 10 -vf showinfo,fps=fps=1/300 %03d.jpg &> output.txt Where -ss 00:10:00 lets me skip ahead 10 mins in the video before starting, and -vframes 10 lets me capture only the first 10 frames (1 frame per 5 mins). This almost works fine except that the command outputs information for all frames, (...)
• 09:09
  Record D3.js whiteboard animation as mp4 audio and video - Jin Ng Newest 'ffmpeg' Questions - Stack Overflow
  I have a whiteboard/hand sketching app written with D3.js svg path elements. These elements are grouped into scenes with their own mp3 audio. Multiple scenes with their animated svg paths are played according to a timeline, with the audio running perfectly. So the end result is like a whiteboard animated movie. This works well within the app. How can i record the whole animation as a mp4 file? I would like to run this entirely on the client side. I have looked at ffmpeg but prefer not to do a desktop install for this web app. I looked into using (...)
• 03:58
  Check if a video file has subtitles - TRS Newest 'ffmpeg' Questions - Stack Overflow
  Is it possible to check if a video file has a subtitle using bash and get a simple answer like "yes" or "no". I don't need to know any details about the subtitles. Maybe using ffmpeg?
• 03:23
  seeking in a file that ffmpeg is processing from a live stream - Ken Mandelberg Newest 'ffmpeg' Questions - Stack Overflow
  I'm using ffmpeg to take input from a live stream and write an mkv file. The stream runs a few hours. I want to play the mkv file while this is in progress. I find that the players basically do "seeks" by playing through the file, which is ok for very short "seeks" but not for very long ones. When the ffmpeg ends it finalizes the mkv file, and seeks long or short work fine. What can I do to be able to have a more usable mkv while ffmpeg is in progress? I suppose I could force ffmpeg to create a new mkv file every hour, with a name including an index. (Is there any (...)
• 01:33
  FPS reduction for H264 - Александр А Newest 'ffmpeg' Questions - Stack Overflow
  There is a USB camera that sends H264 frames with a frequency of 30 fps in a resolution of 1920x1080, which requires throughput of about 6 mbit/s. It is necessary to reduce this to no more than 2 mbit/s. All this is done on a weak ARMv7, so the option of transcoding is extremely resource intensive, especially considering that I did not find how to do it as a GPU Mali. Given that the basic functionality is performed on the framework ffmpeg, is it possible to reduce the frame rate, ideally to 10 fps, WITHOUT loss of quality and (...)

7 mai

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 15:02
  Is there a way i can live stream in real time a canvas and send it to another web server [closed] - N0edL Newest 'ffmpeg' Questions - Stack Overflow
  I'm working on a project where I have a canvas displaying gameplay, which is currently being live-streamed to the client canvas. Now, I want to stream this gameplay canvas to a third-party web server in real time using HLS or RTMP, but I'm unsure where to start. Could anyone provide some guidance or tips on how to achieve this? Here's what I've tried so far: I experimented with FFmpeg for the streaming, but didn't make much progress. I have a system in place that streams the gameplay to the client canvas. Any advice on how to set up the (...)
• 01:59
  FFMPeg is not generating output video file [closed] - Rayam Tanta Newest 'ffmpeg' Questions - Stack Overflow
  Could you please help me on the below? Whats wrong in the below command, am not seeing output file ffmpeg -y -framerate 30 -start_number 1 -loop 1 -i "C:\\Intel\\images%d.jpg" -i "C:\\Intel\\audio\\synthesized_audio.wav" -analyzeduration 2500000 -probesize 5000000 -c:v libx264 -pix_fmt yuv420p -c:a aac -strict experimental -shortest -muxers -f mpg "C:\\Intel\\output.mpg" string imagesDirectory = ⓐ"C:\\Intel\\images"; string audioFile = ⓐ"C:\\Intel\\audio\\synthesized_audio.wav"; string outputVideo = ⓐ"C:\\Intel\\output.mpg"; string ffmpegCommand = $"ffmpeg -y (...)
• 19:18
  Copying GoPro metadata with ffmpeg - Could not find tag for codec none - TomMaier Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to use ffmpeg to copy the metadata of a gopro file. The most basic demonstration of the problem would be to copy everything to a new file: ffmpeg -y -i source.MP4 -c copy -copy_unknown -map 0:v -map 0:a -map 0:2 -map 0:3 -map 0:4 -map_metadata 0 result.MP4 This produces the error: Could not find tag for codec none in stream #2, codec not currently supported in container Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument Error initializing output stream 0:4 -- As I understand it this means that (...) -- GoPro file
• 18:21
  ffmpeg subtitles alignment and position - friendlygiraffe Newest 'ffmpeg' Questions - Stack Overflow
  I am adding subtitles to a video using: ffmpeg -i "imput.mp4" -lavfi "subtitles=subtitles.srt:force_style='OutlineColour=&H100000000,BorderStyle=3,Outline=1,Shadow=0,Fontsize=18'" -crf 1 -c:a copy "output.mp4" Which results in: I am repositioning this using Alignment : ffmpeg -i "imput.mp4" -lavfi "subtitles=subtitles.srt:force_style='Alignment=9,OutlineColour=&H100000000,BorderStyle=3,Outline=1,Shadow=0,Fontsize=18'" -crf 1 -c:a copy "output.mp4" But according to the Line-Alignment (...) -- Line-Alignment ASS Tags
• 16:44
  CMake configuration for ffmpeg in C++ project - pp492 Newest 'ffmpeg' Questions - Stack Overflow
  I have installed ffmpeg (version 4) with Homebrew and I am trying to use the various ffmpeg libraries in a C++ project, but I am getting multiple errors during linking. Undefined symbols for architecture x86_64: "_av_free", referenced from: _main in main.cpp.o "_av_packet_alloc", referenced from: _main in main.cpp.o "_av_parser_init", referenced from: And so on ... I have included the libraries as follow extern "C" #include #include #include But still, this doesn't work. (...)
• 16:33
  How set CMake to find a local package FFmpeg? - zerpico Newest 'ffmpeg' Questions - Stack Overflow
  I am trying write CMakeLists with FFmpeg package, with compile on Windows and Linux. First downloaded from FFmpeg-Builds shared releases I imagine the structure of the project like this: deps/ ffmpeg/ win-x64/ incluve/ lib/ bin/ linux-x64/ incluve/ lib/ bin/ src/ CMakeLists.txt How to help CMake find libraries: avcodec, avformat, avutil, etc? Maybe in the folder lib/pkgconfig using PkgConfig it is possible to specify the path. But I dont know (...) -- FFmpeg-Builds
• 07:30
  Run "scrcpy" Commands And Throws Error "libopenh264.so.7 is missing" / "openh264 disabled" - 息子運命 Newest 'ffmpeg' Questions - Stack Overflow
  I try to run scrcpy command like what I did before, and proved if it's worked not just once. scrcpy -m 540 -S but after re-installing my OS and use Fedora OS with dnf package manager, I got errors with output below. WARN: Demuxer 'audio': stream explicitly disabled by the device WARN: [FFmpeg] libopenh264.so.7: cannot open shared object file: No such file or directory: libopenh264.so.7 is missing, openh264 support will be disabled ERROR: Demuxer 'video': could not open codec ERROR: Demuxer error [server] INFO: Device screen turned (...)
• 04:49
  FFMpeg avformat_write_header always returns < 0 - gabe.roze Newest 'ffmpeg' Questions - Stack Overflow
  We've asked a freelancer to build a video encoder with FFMPeg for iOS but there is a bug and the freelancer is no longer available. I very inexperienced in FFMpeg and video encoding and am trying to debug this error. From what I understand, we're attempting to create an output file and create a header for it however, avformat_write_header is always less than zero. If I comment it out, it does not work - (BOOL) writeHeaderWithError:(NSError *__autoreleasing *)error AVDictionary *options = NULL; // Write header for output file int (...)

6 mai

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 07:39
  How to clone last frame when using overlay in ffmpeg? [closed] - mikezang Newest 'ffmpeg' Questions - Stack Overflow
  I use this code to slide previous and next pages up, this is no problems, can I remove png file 1970～1979-last.png and use the last frame of video file 1970～1979.mp4 to instead it? script-01.txt color=white:864x504[c]; [0:v]scale=864:504:force_original_aspect_ratio=decrease,pad=864:504:-1:-1,setsar=1[s0]; [1:v]scale=864:504:force_original_aspect_ratio=decrease,pad=864:504:-1:-1,setsar=1[s1]; [c][s0]overlay=y=0-h*t[c]; [c][s1]overlay=y='if(between(t,0,18),max(H-h*t,0),max(0-h*(t-18),0-H))'[v], [v]tpad=stop_mode=clone:stop_duration=10[s2]; [s2]drawtext=fo
• 17:37
  FFMPEG transcoding as 59.979960 fps instead of 60 fps [closed] - RJQ Newest 'ffmpeg' Questions - Stack Overflow
  I am transcoding an image sequence to a 10 frame 60fps .mov files using the first command below. I am then concatenating the exported videos using the second command below. Transcode ffmpeg -y -r 60 -probesize 13M -start_number 1001 -i 'input_video.%04d.jpeg' -c:v libx265 -pix_fmt yuv420p10le -crf 28 -preset slower -tag:v hvc1 -vf lut3d='output_lut.cube' -r 60 -frames:v 10 -movflags faststart output_video_0001.mov Concatenate ffmpeg -y -f concat -safe 0 -i input_concat_list.txt -c copy output_concat.mov I expected the final file from the (...)
• 18:57
  How do I make libavformat reconnect when connection is reset by peer? - user24897675 Newest 'ffmpeg' Questions - Stack Overflow
  I am opening a network file via HTTPS like this: avformat_open_input(&m_format, "https://www.example.com/file.mp4", nullptr, nullptr); It works, however sometimes connection is closed and this is logged: [tls ⓐ 0x7f600ba690] Error in the pull function. [tls ⓐ 0x7f600ba690] IO error: Connection reset by peer [mov,mp4,m4a,3gp,3g2,mj2 ⓐ 0x7f6007e450] Packet corrupt (stream = 0, dts = 24188928). [aac ⓐ 0x7f60324800] Input buffer exhausted before END element found I found it possible to setup reconnection by logs from this post. Here are their (...)
• 18:18
  Multiple fadeIn/fadeOut effects in one audio file with ffmpeg - farw Newest 'ffmpeg' Questions - Stack Overflow
  I have some problem to add several fade effects to one audio file. When I try to use a command like this: ffmpeg -y -i /home/user/video/test/sound.mp3 -af "afade=t=in:ss=0:d=3,afade=t=out:st=7:d=3,afade=t=in:st=10:d=3,afade=t=out:st=17:d=3,afade=t=in:st=20:d=3,afade=t=out:st=27:d=3" /tmp/test.mp3 then my output audio file has a fadein and fadeout applied only once. All the next effects don't get applied. Is there any possible way to apply several fade effects to the same audio file? Also, what is the difference between ss and st parameter in this (...)
• 17:44
  How to set "ch_layout" in ffmpeg 6.1? - Steven porite Newest 'ffmpeg' Questions - Stack Overflow
  In 6.1 Ffmpeg, it use "ch_layout" to replace the "channel_layout" and "number". The "ch_layout" is "AVChannelLayout *" type. This type is defined in channel_layout.h, some kind of "ch_layout" is defined in this file too. If I want to use the "av_dict_set_int()" set the "ch_layout" to "AV_CHANNEL_LAYOUT_STEREO", what should I fill to the "value"? /** * Macro to define native channel layouts * * ⓐnote This doesn't use designated initializers for compatibility with C++ 17 and older. */ #define AV_CHANNEL_LAYOUT_MASK(nb, m) \\ /* .order */ (...)
• 11:21
  The maximum recursion level for setlocal has been reached [closed] - pengfei liu Newest 'ffmpeg' Questions - Stack Overflow
  ⓐecho off setlocal enabledelayedexpansion rem 设置源视频文件夹路径和目标视频文件夹路径 set source_folder=F:\\BaiduNetdiskDownload\\dhm\\uploaded set target_folder=C:\\Users\\SF-ZJ-442\\Desktop\\target_folder rem 确保目标文件夹存在，如果不存在则创建 if not exist "%target_folder%" mkdir "%target_folder%" rem 设置目标分辨率（例如：1280x720） set target_resolution=1080:1920 echo start....... echo "%source_folder%\\*.mp4" rem 遍历源文件夹中的所有视频文件 for %%i in ("%source_folder%\\*.mp4") do ( rem 提取文件名和扩展名 set "filename=%%~ni" set "extension=%%~xi" rem 构建目标文件路径 set (...)
• 13:13
  is it possible to read mp3 id3 tags in php using ffmpeg? if so then how? [closed] - Assassiŋ Shaɖow Newest 'ffmpeg' Questions - Stack Overflow
  Hi i have a few mp3 files in my server which constantly change and i need the mp3 id3 tags for people to know what song is being played at the moment preferably via php . I am a complete noob at this so any help is helpful.
• 14:05
  Error transcoding with FFmpeg: Error: Output format hls is not available - asif mohmd Newest 'ffmpeg' Questions - Stack Overflow
  I am using FFmpeg library to transcode a video file into multiple resolutions and create an HLS (HTTP Live Streaming) master playlist. It takes a video file as input but its does give me the output with HLS playlist.I got a error called "Output format hls is not available". Only the Output directory is creating I am using FFMpeg 7.0 full build version and also tried older versions and ffmpeg essentials and also tried chocolatey. if i remove the implementation of HLS from this code.it will create 4 different resolution videos in my output. Note:I just tried this same (...)
• 02:02
  How to customize the spectrograms generated with ffmpeg or SoX? [closed] - Mark I Newest 'ffmpeg' Questions - Stack Overflow
  I found code to batch generate spectrograms of music files I have with SoX and ffmpeg, and while they work I'd like to customize the spectrograms they generate to make them look "nicer", more like Spek's. Specifically, I want to change the x axis' time format from s to mm:ss, the font, the frequency format, and add some info about the file above the spectrogram. I can't find anything in their documentation, so what parameters would I have to add to the sox or ffmpeg commands to make their output look more like (...) -- like this?
• 08:35
  Convert png images to HEVC with alpha video via ffmpeg [closed] - foxhable Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to create a video from a sequence of png images in the HEVC with alpha codec via ffmpeg. After the command ffmpeg -i a%d.png -r 30 -c:v hevc_videotoolbox -allow_sw 1 -alpha_quality 1 -vtag hvc1 ffmpeg-hevc.mov I get a video with a transparent background that opens in QuickTime, but not Safari. Info about this video via ffprobe: ffprobe .\\ffmpeg-hevc.mov Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '.\\ffmpeg-hevc.mov': Metadata: major_brand : qt minor_version : 512 compatible_brands: qt encoder : Lavf61.3.103  (...) -- video
• 06:28
  How to use pyav or opencv to decode a live stream of raw H.264 data? - Dery Newest 'ffmpeg' Questions - Stack Overflow
  The data was received by socket ,with no more shell , they are pure I P B frames begin with NAL Header(something like 00 00 00 01). I am now using pyav to decode the frames ,but i can only decode the data after the second pps info(in key frame) was received(so the chunk of data I send to my decode thread can begin with pps and sps ), otherwise the decode() or demux() will return error "non-existing PPS 0 referenced decode_slice_header error" . I want to feed data to a sustaining decoder which can remember the previous P frame , so after feeding one B frame, the decoder return a (...)
• 00:16
  FFmpeg does not detect bitstream filter parameter - FFmpegEnthusiast Newest 'ffmpeg' Questions - Stack Overflow
  I have tried to make a bitstream filter for FFmpeg that drops the nth keyframe for positive numbers and allows the first n keyframes and drops the rest for nonpositive numbers, called "datamosh": ffmpeg -i input.webm -bsf:v datamosh=target=20 -c copy output.webm outputs the error: Option 'target' not found [vost#0:0/copy ⓐ 0x54edc40] Error parsing bitstream filter sequence 'datamosh=target=20': Option not found Here is the code for the "datamosh" bitstream filter: #include "bsf.h" #include "bsf_internal.h" #include (...)

5 mai

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 22:43
  Adding a rotating effect on an image using ffmpeg? [closed] - Garry Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to overlay an image on a video, and add subtle rotating effects for that image, left, right, left right, and so on. (see pictures) The rotation works, however the edges are always very jagged and bad quality. Is there a way to improve my filters, or is there a better approach that I can use, without jagged edges? This works, overlays the image.png and applies to rotating effect: ffmpeg -loop 1 -i image.png -i video.mp4 -t 10 -filter_complex (...) -- , ,
• 15:42
  Can I only use video file to countdown at last frame? [closed] - mikezang Newest 'ffmpeg' Questions - Stack Overflow
  I save the last frame to image when I create a video, then I convert image to 10 seconds video and put countdown on it, at last, merge this two videos. I can also use video to countdown but that start from first frame, how can I countdown at last frame? countdown.bat ffmpeg -hide_banner ^ -i "C:\\myvideos\\video.mp4" ^ -filter_complex_script countdown.txt ^ -t 30 -y %2.mp4 countdown.txt [0:v]scale=864:504:force_original_aspect_ratio=decrease,pad=864:504:-1:-1,setsar=1[s0]; [s0]drawtext=fontfile='/WINDOWS/Fonts/Arial.ttf':text='%eif\\:10-t\\:
• 14:13
  The question about ffmpeg drawtext filter [closed] - B1GGersnow Newest 'ffmpeg' Questions - Stack Overflow
  I tried to use rockchip(aarch64) hardware acceleration and add a drawtext filter to add watermarks. However, squares appear when multiple Chinese fonts are added. This is my compilation parameter. ./configure --prefix=/usr --enable-gpl --enable-version3 --enable-libdrm --enable-rkmpp --enable-rkrga --enable-filter=drawtext --enable-libharfbuzz --enable-libfreetype --enable-libfontconfig --enable-libfreetype --enable-libfribidi ffmpeg -hwaccel rkmpp -hwaccel_output_format drm_prime -i 1.mp4 -vf (...) -- img1, img2
• 16:30
  FFMPEG Command to convert images to svg [closed] - themujahidkhan Newest 'ffmpeg' Questions - Stack Overflow
  Users are trying to convert images to SVG image on my website, Below I've given a link to the site, more detail on error and code that handles the conversion of media files. You can check out the live site Here. Steps to reproduce the error. Upload the png file, Select SVG as output file Click convert. It is throwing error. Below is the code for that converts users input and gives input based on user preference. // imports import createCanvas, loadImage from "canvas"; import Action from "ⓐ/types"; import FFmpeg (...)
• 20:24
  convert video to audio using ffmpeg - shakti goyal Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to convert a video to mp3 using ffmpeg library but ffmpeg command is not working, it is returning the code 1 Video conversion to MP3 failed with return code: 1 try final session = await FFmpegKit.execute('-i $videoFilePath -vn -ar 44100 -ac 2 -b:a 192k -f mp3 $audioFilePath'); final returnCode = await session.getReturnCode(); if (ReturnCode.isSuccess(returnCode)) print('Video conversion to MP3 successful!'); else print('Video conversion to MP3 failed with return code: $returnCode');  (...)
• 18:59
  Can you change decoded format with ffmpeg? [closed] - Gunter Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to play some videos from my external hard drive onto my TV. However, it seems Planar 4:2:0 YUV 10 bit LE is too demanding for my TV. The video codec for my videos are h264. I have some other videos that are h264 and are able to run on my TV. When I open them on VLC, their decoded format is blank. The problem just occurs when the decoded format is YUV 10-bit. I'm not too familiar with ffmpeg and I'm not sure what commands I need or if it's possible to change the decoded (...)
• 18:13
  How to change pitch and tempo together, reliably with ffmpeg - Ray C Newest 'ffmpeg' Questions - Stack Overflow
  I know how to change tempo with atempo, but the audio file becomes distorted a bit, and I can't find a reliable way to change pitch. (say, increase tempo and pitch together 140%) Sox has a speed option, but truncates the volume AND isn't as widely available as ffmpeg. mplayer has a speed option which works perfectly, but I can't output without additional libraries. I seem to understand ffmpeg doesn't have a way to change pitch (maybe it does recently?) but is there a way to change frequency or some other flags to emulate changing pitch? Looked quite (...)
• 18:08
  Is there a way to horizontal flip video captured from flutter front camera - JoyJoy Newest 'ffmpeg' Questions - Stack Overflow
  Basically, I'm trying to flip video horizontally after capturing it from flutter front camera. So I start recording, stop recording, flip the video and pass it to another page. I'm fairly new and would appreciate any assistance as my code isn't working I've tried doing so using the new ffmpeg_kit flutter Future flipVideo(String inputPath, String outputPath) async final ffmpegCommand = "-i $inputPath -vf hflip $outputPath"; final session = FFmpegKit.executeAsync(ffmpegCommand); await session.then((session) async final returnCode = await (...) -- ffmpeg_kit
• 16:45
  How to perform Video Trimming & Merging Performance in Mobile App? [closed] - Harpreet Singh.8052 Newest 'ffmpeg' Questions - Stack Overflow
  I am in the process of developing an app that will allow users to trim and merge recorded videos similar to Snapchat and Instagram stories. Currently, I am using FFmpeg for video processing, but it is taking too long to complete. I have come up with an idea to use ExoPlayer to minimize processing time. My plan is to store the trimmed duration of multiple videos and only play the trimmed part when the video is played. ExoPlayer allows playing multiple videos seamlessly, so it will appear as if the videos have been trimmed and merged. However, I am uncertain about how to handle video (...)
• 15:13
  How to apply the same FFMPEG slide transition for every slide in a sequence? - will Newest 'ffmpeg' Questions - Stack Overflow
  I have an ffmpeg command to create an MP4 video from a sequence of N x JPEG slides. That is, I do not know how many slides there are in the sequence, it is just a directory of JPEG-s. I'd like to apply a common slide transition for every slide in the sequence. All the examples I've read seem to need to know how many slides there are before the filter is written. The idea is to use one (simple) transition/filter for every slide. So far the script looks like this: play_duration="-framerate 1/10" # 10 seconds for testing ffmpeg \\ $play_duration \\  (...) -- How to Create a Slideshow from Images using FFmpeg
• 06:56
  How to improve Video Trimming & Merging Performance for Mobile App [closed] - Harpreet Singh.8052 Newest 'ffmpeg' Questions - Stack Overflow
  I am in the process of developing an app that will allow users to trim and merge recorded videos similar to Snapchat and Instagram stories. Currently, I am using FFmpeg for video processing, but it is taking too long to complete. I have come up with an idea to use ExoPlayer to minimize processing time. My plan is to store the trimmed duration of multiple videos and only play the trimmed part when the video is played. ExoPlayer allows playing multiple videos seamlessly, so it will appear as if the videos have been trimmed and merged. However, I am uncertain about how to handle video (...)
• 09:12
  Running ffmpeg in Docker environment on AWS EC2 [duplicate] - must Newest 'ffmpeg' Questions - Stack Overflow
  I want to use FFMPEG inside my Java application. I want to instal ffmpeg in environment where this app is running. My current Dockerfile: # Stage 1: Build the application FROM maven:3.8.4-openjdk-17 AS build WORKDIR /app COPY pom.xml . COPY src ./src RUN mvn clean install -Dmaven.test.skip=true # Stage 2: Run the application FROM openjdk:17 WORKDIR /app COPY --from=build /app/target/application.jar ./app.jar EXPOSE 8080 CMD ["java", "-jar", "-Dspring.profiles.active=pr", "app.jar"] I simply built a docker image by (...) -- https://hub.docker.com/r/jrottenberg/ffmpeg
• 05:16
  How can I found FFmpeg Error code's meaning? - Birds Newest 'ffmpeg' Questions - Stack Overflow
  I have an issue using FFMPEG. avcodec_send_packet() is returning error code -12. I am trying to find what the meaning of -12 is. I found this page but I can't understand the calculation for -12: How can I find out what this ffmpeg error code means? Can anyone help me? I'm using DXVA2 for decoding. and avcodec_send_packet() function is return -12 after the 20th frame. 20th frame return 21st frame return  (...) -- ,
• 00:43
  How to horizontal flip video captured from flutter front camera - JoyJoy Newest 'ffmpeg' Questions - Stack Overflow
  Basically, I'm trying to flip video horizontally after capturing it from flutter front camera. So I start recording, stop recording, flip the video and pass it to another page. I'm fairly new and would appreciate any assistance as my code isn't working I've tried doing so using the new ffmpeg_kit flutter -- ffmpeg_kit

4 mai

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:52
  how to set subtitles quality in ffmpeg - Exorcismus Newest 'ffmpeg' Questions - Stack Overflow
  am trying to burn captions on a video using ffmpeg, for some videos the subtitles quality looks bad similar to the image below... currently the configurations am using are ... .withVideoCodec("libx264") .withAudioCodec("copy") .withOutputFormat("mp4") .outputOptions("-preset veryfast") .outputOptions('-max_muxing_queue_size 1024') how can I differentiate captions quality from video quality ? --
• 13:49
  python 3 using ffmpeg in a subprocess getting stderr decoding error - jdauthre Newest 'ffmpeg' Questions - Stack Overflow
  I am running ffmpeg as a subprocess and using the stderr to get various bits of data like the subtitles stream Id's. It works fine for most videos, but one with japanese subtitles results in an error: 'charmap' codec can't decode byte in position xxx : character maps to Much googling suggests the problem is that the japanese requires unicode, whereas English does not. Solutions offered refer to problems with files, and I cannot find a way of doing the same with the stderr. Relevent Code is below: command = (...)
• 13:31
  Audio file could not be read as PCM WAV, AIFF/AIFF-C, or Native FLAC; check if file is corrupted or in another format - 陳昱廷 Newest 'ffmpeg' Questions - Stack Overflow
  import os import speech_recognition as sr command = "ffmpeg -i videototext.mp4 videototext.mp3" os.system(command) commandwav = "ffmpeg -i videototext.mp3 videototext.wav" os.system(commandwav) AUDIO_FILE = "videototext.wav" r = sr.Recognizer() videototext = sr.AudioFile(AUDIO_FILE) with videototext as source: audio = r.record(source, duration=100) print(type(audio)) print(r.recognize_google(audio)) above is my code,then the error is: Audio file could not be read as PCM WAV, AIFF/AIFF-C, or (...)
• 06:29
  Batch generating spectrograms with ffmpeg or SoX: how to customize their appearance, and is my code so far correct? - Mark I Newest 'ffmpeg' Questions - Stack Overflow
  I have a .flac music library, and for organizational and quality assessment reasons I want to have spectrograms of every song in it. After finding out that the program I usually use to view them, Spek, doesn't offer a batch export option, I have found ways to batch generate spectrograms with both SoX and fmpeg. Below you can find the two scripts I've got, which take as an input a folder which contains flac files or subfolders containing flac files, and output their spectrograms (with the same names as their corresponding flacs) to an output folder with the same structure as the (...) -- this is what the output looks like:, this is what it outputs: , Spek outputs
• 05:55
  Ffplay dual monitor setup - Alexandr Zarubkin Newest 'ffmpeg' Questions - Stack Overflow
  How can I launch ffplay on the second monitor in full screen mode? I need to play a video file while analyzing video player output to get current position in the file being played.
• 02:11
  How to split one overlay script to multiple part scripts? - mikezang Newest 'ffmpeg' Questions - Stack Overflow
  I can slide 30 images from left to center and countdown 10 seconds, then keep slide to left..., but run this script more than hours... script.txt [0:v]scale=864:504:force_original_aspect_ratio=decrease,pad=864:504:-1:-1,setsar=1[s0]; [1:v]scale=864:504:force_original_aspect_ratio=decrease,pad=864:504:-1:-1,setsar=1[s1]; ... [29:v]scale=864:504:force_original_aspect_ratio=decrease,pad=864:504:-1:-1,setsar=1[s29]; [s0]split=2[bg][v]; [bg]drawbox=c=white:t=fill[bg]; [bg][v]overlay=x='if(between(t,0,10),max(W-w*(t-0),0),max(0-w*(t-10),0-W))', dra -- , ,

3 mai

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 22:51
  Xvfb records a black screen - Vivek Newest 'ffmpeg' Questions - Stack Overflow
  I am trying a record a video by running xvfb inside a docker image. No matter what I do it gives me black screen. Screen size same in xvfb and ffmpeg and puppeteer. It will would really great if someone can help. start-xvfb.sh --------------------------------------------------------------------- # Start Xvfb Xvfb :99 -screen 0 1280x720x24 & # Set the display environment variable export DISPLAY=:99 # Run the application (assuming it starts with npm start) npm run dev Dockerfile FROM node:lts-alpine3.19 # (...) --