8 juin

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

• 22:48
  Can I use HTTP/2.0 for downloading HLS streams using FFmpeg? - SpongeBed Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to download an HLS stream using FFmpeg. However, FFmpeg defaults to HTTP/1.1 for downloading content, and the video source's firewall blocks HTTP/1.1 connections. Consequently, FFmpeg cannot download the video. I used the same headers as my browser to access the content and replicated the request using Insomnia. And again, my request was blocked when using HTTP/1.1. I've searched everywhere but haven't found any information on how to change the HTTP version FFmpeg uses for requests. Is there a way to configure FFmpeg to use HTTP/2.0 instead of (...)
• 22:30
  Looking for a better cutting command in FFmpeg - Mohammad Mansour Newest 'ffmpeg' Questions - Stack Overflow
  This is the original command, it removes the part between the start and end which will be specified in command ffmpeg -i input.ext -vf "select='not(between(t,start,end))', setpts=N/FRAME_RATE/TB" -af "aselect='not(between(t,start,end))', asetpts=N/SR/TB" output.ext is there better options that doesn't re-encode? or atleast is faster?. keep in mind I am want the command to remove the part between the start and end not return it so this for example ins't what I am looking for: ffmpeg -ss start -i input.mp4 -c copy -t end (...)
• 18:13
  FFMpeg in C# with streams - oLaDushek Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to crop mp3 using FFMpeg. I need to use streams for both input and output data. At the moment, I'm trying to use the stream at least only for input data. var inputFile = ⓐ"D:\\TestInput.mp3"; var process = new Process StartInfo = new ProcessStartInfo FileName = ⓐ"path\\to\\ffmpeg.exe", Arguments = "-i - -vn -acodec copy -ss 00:00:00 -t 00:00:30 -y D:\\\\TestFFMpeg.mp3", RedirectStandardInput = true, UseShellExecute = false , EnableRaisingEvents = true ; process.Start(); using (var (...)
• 17:54
  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
• 11:57
  Unable to stream video file from MediaMTX media server to browser via WebRTC - thegreatjedi Newest 'ffmpeg' Questions - Stack Overflow
  I took over a repository at work. It's a working demo comprising a web server which receives video and camera feeds from a media server (built from the rtsp-simple-server Docker image) via a RTSP relay server and streams the feeds to the client, all deployed via Docker Compose. I'm trying to switch over to use WebRTC instead. rtsp-simple-server has upgraded into MediaMTX since the time the demo was created 2 years ago. This is the relevant section of the updated Docker Compose configuration: media-server: image: bluenviron/mediamtx:latest-ffmpeg expose:  (...) -- MediaMTX
• 09:05
  Issue with executing ffprobe command in exec() - Tauseed Zaman Newest 'ffmpeg' Questions - Stack Overflow
  I'm encountering an issue while trying to execute ffprobe commands within a Laravel command. Here's a brief overview of the problem and the relevant code snippets: I'm developing a Laravel application where I need to process video files using ffprobe . The application has a console command named app:process-videos that should extract the duration of video files using ffprobe, and update the database. However, I'm facing difficulties in executing these commands within the Laravel command. Here's the relevant portion of the code from the handle() method of (...)
• 06:10
  Issue with Executing ffprobe Command in Laravel Command - Tauseed Zaman Newest 'ffmpeg' Questions - Stack Overflow
  I'm encountering an issue while trying to execute ffprobe commands within a Laravel command. Here's a brief overview of the problem and the relevant code snippets: I'm developing a Laravel application where I need to process video files using ffprobe . The application has a console command named app:process-videos that should extract the duration of video files using ffprobe, and update the database. However, I'm facing difficulties in executing these commands within the Laravel command. Here's the relevant portion of the code from the handle() method of (...)

7 juin

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

• 15:43
  ffmpeg - mpegts Multicast [closed] - Miguel Duarte Newest 'ffmpeg' Questions - Stack Overflow
  I'm generating a multicast stream with this command: ffmpeg -hwaccel_device 1 -format_code Hi50 -re -f decklink -i 'DeckLink Duo (1)' -pix_fmt yuv420p -c:v h264_nvenc -profile:v high -b:v 3500k -rc 2 -cbr true -maxrate 3500k -bufsize 7000k -c:a mp2 -b:a 192k -f mpegts "udp://239.1.1.2:5000?ttl=2&pkt_size=1316" My problem is that if I open this stream on a device with a 100Mb/s connection, it's heavily pixelated. The same stream on a 1Gb/s device displays fine. I have other multicast streams from our ISP and they display fine regardless of (...)
• 21:00
  How to send Ctrl+C to boost::process? - Mike Newest 'ffmpeg' Questions - Stack Overflow
  I launch FFmpeg in boost::process and get data from it every n seconds. If I terminate the app or FFmpeg in the console using Ctrl+C, FFmpeg flushes all data it has to stdout. But, if I terminate boost::process using the terminate() function, I don't get any data flushed. So I need to send Ctrl+C signal to the process before terminating it to get flushed data from FFmpeg. I tried: GenerateConsoleCtrlEvent(CTRL_C_EVENT, c.id()) But, it seems to have no (...)
• 16:46
  Reading RTCP packets from an IP camera using FFMPEG - Didac Perez Parera Newest 'ffmpeg' Questions - Stack Overflow
  I am using the ffmpeg C library. I need to intercept RTCP packets from the camera in order to get the timestamp from the Sender Report. Is there any method or structure in the ffmpeg that gives me this information? I am completely stuck but I am not able to solve that problem. Any help will be appreciated. Thanks in advance,
• 06:55
  How can I render frames decoded by FFmpeg using hardware decoding with D3D11? - mercuric taylor Newest 'ffmpeg' Questions - Stack Overflow
  I have completed the process of decoding a video frame using FFmpeg. The format of the decoded frame is AV_PIX_FMT_NV12. Now, I want to render this frame to the screen using D3D11. My questions are: What is the equivalent concept in D3D11 for a decoded frame? Is it a texture? I have seen many solutions that convert NV12 data to RGB, but it seems that DX11 does not require this conversion anymore. I just want to display this frame, and since my frame is on the GPU, is there a more convenient way to render directly on the GPU without copying? Please forgive my (...) -- https://github.com/balapradeepswork/D3D11NV12Rendering/tree/master/D3D11NV12Rendering
• 04:17
  Getting "TypeError: must be real number, not NoneType" whenever trying to run write_videofile to a clip in moviepy - Sato Newest 'ffmpeg' Questions - Stack Overflow
  Example code: from moviepy.editor import * clip = VideoFileClip('video.mp4') clip.write_videofile('video2.mp4', fps=30) After showing the following messages, showing that the video is being built and written, Moviepy - Building video video2.mp4. Moviepy - Writing video video2.mp4 The following error message occurs: Traceback (most recent call last): File "", line 1, in File "C:\\Users\\User\\Anaconda3\\lib\\site-packages\\decorator.py", line 232, in fun return caller(func, *(extras + args), **kw) File (...)

6 juin

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

• 08:54
  how to encoded a 10bit .tif file into an HDR video by ffmpeg in command line [closed] - ziyuan Newest 'ffmpeg' Questions - Stack Overflow
  how can i encoded a RGB 10 bit tif file into a hdr video by ffmpeg? and one more question: should the input tiff must be 16bit big- or little- endian? i have try the method here: How can I encode RGB images into HDR10 videos in ffmpeg command-line? ,the same command and setting as the method. However i got this : code 1026: YUV color family cannot have RGB matrix coefficients here is the tiff file i have tried:https://drive.google.com/file/d/1G8oYf9-FQJJPNUxwB0_FmlvBaMnUhCVL/view?usp=drive_link and i found that: the procedure information it seems like the (...) -- https://drive.google.com/file/d/1G8oYf9-FQJJPNUxwB0_FmlvBaMnUhCVL/view?usp=drive_link, the procedure information
• 23:45
  ffmpeg copies and restreams HLS/TS stream to RTP/Janus but fails on HLS/fMP4 stream - puterboy Newest 'ffmpeg' Questions - Stack Overflow
  I am using go2rtc to generate HLS streams to stream video from a PiCamera v3 running on an RPi5 for use in Octoprint. I also need to copy and restream the HLS stream to an RTP Janus server for Spaghetti detection. ffmpeg works fine on an HLS/TS (H264) stream but fails on a similar HLS/fMP4 (H264, H265, AAC) stream -- however, for quality reasons, I would prefer to use an HLS/fMP4 stream. Specifically, I am running the following: ffmpeg -re -i -an -c:v copy -an -f rtp rtp://127.0.0.1:17732?pkt_size=1300``` It streams properly forever when STREAM_URL is in (...)
• 13:49
  PyQt6 6.7.0 - How to fix error: No QtMultimedia backends found - Belleroph0N Newest 'ffmpeg' Questions - Stack Overflow
  Problem on Windows 10 and Windows 11 using Anaconda. Here is the full error message for PyQt6=6.7.0: No QtMultimedia backends found. Only QMediaDevices, QAudioDevice, QSoundEffect, QAudioSink, and QAudioSource are available. Failed to initialize QMediaPlayer "Not available" Failed to create QVideoSink "Not available" Installed PyQt6 using a requirements file: PyQt6 PyQt6-WebEngine requests pyserial pynput Here are a couple things I tried: Reroll version back to PyQt6=6.6.1. This results in an error as well: ImportError: DLL (...) -- issue
• 11:47
  how to prevent the hls video player dont refresh when m3u8 changes - Leo Newest 'ffmpeg' Questions - Stack Overflow
  here i am using ffmpeg to use camera and audio to make a hls stream on server as the stream continious old m3u8 components deletes and new ones gets added to main.m3u8. but as we insert the url of hls stream file main.m3u8. the player refreshes as soon as the file gets rewritten because of new and old ones. so i have tried to change the players like hls.js or videojs etc none were to solve this. how to solve this and make sure the stream runs smoothly. Server.js const startStreaming = (viddev,auddev) => if (ffmpegProcess) ffmpegProcess.kill(); const (...)
• 03:21
  FFMPEG get stuck when transcoding too many FLAC audios [closed] - user25436721 Newest 'ffmpeg' Questions - Stack Overflow
  I'm currently using Editly for create some videos from code, but there are some bugs with ffmpeg(latest). Nothing returns after hours processing(460 audios files during test), I already tried with flac, aac, libshine and libmp3lame encoders, already tried a different a ffmpeg version(static). From the editly code, I already changed the ffmpeg query, slicing in chunks(75), the results were: 0, 75 ok 0, 80 stuck 75, 150 ok 150, 225 ok 225, 300 stuck 300, 375 ok 375, 450 ok Stuck screen(directly from terminal): built with gcc 13 (...) -- Editly
• 07:59
  Broken pipe error when writing video file with moviepy in azure [closed] - Lydia Newest 'ffmpeg' Questions - Stack Overflow
  I have a program that retrieves images (png) and audio files from Azure Blob Storage to merge them into a video, which is then written to a temporary file and saved back to Blob Storage. I'm coding in Python and here is code i use to do that: def merge_image_audio(azure_connection_string): """Merge PNG with mp3 files.""" # get Azure Container Client container_client = get_container_client(azure_connection_string, AZURE_CONTAINER_NAME) # List blobs in the "temp" folder blob_list = container_client.list_blobs(name_starts_with="temp/") # (...)
• 00:12
  FFmpeg lavfutils.h seems to be missing - Collin Newest 'ffmpeg' Questions - Stack Overflow
  The lavfutils.h file is missing from the include folder where the ffmpeg library was put. I installed the ffmpeg library to load an image in c++. I installed it using ./vcpkg ffmpeg. The ff_load_image function is in lavfutils.h, but that file is missing from the ffmpeg_x64-windows folder where vcpkg put the rest of the library. Has the way you load images changed? Or have I installed ffmpeg incorrectly?

5 juin

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

• 08:18
  Converting .360 video (Go Pro Max) to 360 MP4 video? [closed] - Curious_Mate Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to create a script that will convert my .360 videos into 360 MP4 format, but it does not seem to work properly. When I scroll through the video, it looks like I am in a black hole or like I am moving with "warp speed" :) Can anyone help me with the parameters? The goal is to convert them using ffmpeg instead of the traditional export from GoPro Player. Here is the Python script so far: `import os import subprocess # Define the root directory to start from and the path to ffmpeg root_path = r"C:\\Videos" ffmpeg_path = (...)
• 15:29
  Broken pipe when writing video file with moviepy in azure [closed] - Lydia Newest 'ffmpeg' Questions - Stack Overflow
  I have a program that retrieves images (png) and audio files from Azure Blob Storage to merge them into a video, which is then written to a temporary file and saved back to Blob Storage. I'm coding in **Python **and here is the function I use from MoviePy: final_clip.write_videofile(temp_file_name, fps=24, codec='libx264', audio_codec='mp3') I have containerized my code, and the **Docker **image works perfectly on my machine. However, once deployed on Azure, I encounter this problem with writing the video: Failed: [Errno 32] Broken pipe MoviePy error: (...)
• 19:47
  Record linux screen (audio/video) and stream to an API - Joel Newest 'ffmpeg' Questions - Stack Overflow
  I'm running a browser on a Linux server, and I'm trying to figure out the best way to capture the audio/video of the screen, and stream that with as little latency as possible to an API on another server. Requirements: Stream the audio from server A to server B so that server B can pipe that forward to an online transcription service. Stream the audio and video from server A to server B so that server B can store the contents to some kind of blob storage. If the stream is killed for some reason before it's ended, the partial contents should be saved and (...)
• 19:17
  Execute "ffmpeg" command in a loop [duplicate] - Mohammad Torfehnezhad Newest 'ffmpeg' Questions - Stack Overflow
  I have three .wav files in my folder and I want to convert them into .mp3 with ffmpeg. I wrote this bash script, but when I execute it, only the first one is converted to mp3. What should I do to make script keep going through my files? This is the script: #!/bin/bash find . -name '*.wav' | while read f; do ffmpeg -i "$f" -ab 320k -ac 2 "$f%.*.mp3" done
• 17:19
  How do I merge video, audio and subtitles together in ffmpeg via python? - user14609171 Newest 'ffmpeg' Questions - Stack Overflow
  I have been trying to merge a video, audio and subtitle stream in ffmepg but, since it is my first time trying it out, I am having a bit of trouble figuring out how to do so. Goal: The output I am looking for a the video in the background with the subtitles overlayed in the center of the screen with the audio from the input stream, which in this case is an mp3 file. These are my input streams: video_input_stream = ffmpeg.input(background_video) audio_input_stream = ffmpeg.input(audio) subtitle_input_stream = ffmpeg.input(subtitle_file) and I have (...)
• 16:54
  Google Lato Font Display discrepancies between platforms/software [closed] - CRAIG Newest 'ffmpeg' Questions - Stack Overflow
  Using Google's Lato font with 400 weight, is giving me some inconsistent results between Photoshop/Web on MacOS and Linux Imagemagick & Linux ffmpeg. I have printed out some text on my linux server using the font using both imagemagick (v6.9.10-68) and ffmpeg's (v6.0) drawtext feature and in both cases, I get some extra space between the T and the e. (Image below) At first I was only testing ffmpeg and thought it was related to drawtext, but now that imagemagick is doing the same, I am thinking it may be somehow related to how the server is managing the font?  (...) --
• 16:15
  How can I encode RGB images into HDR10 videos in ffmpeg command-line? [closed] - F.X. Newest 'ffmpeg' Questions - Stack Overflow
  How can I encode HDR10 videos from RGB images using the ffmpeg command-line, with the proper color and luminance metadata? There are a lot of ffmpeg command-line examples floating around when searching information about how to encode HDR10 streams properly, but I didn't find any that has a comprehensive list of all the parameters you can tune when using RGB frames as inputs. For example: This article has a lot of information, but uses an existing video as input. Similarly, this article uses an existing video as (...) -- This article, this article
• 14:14
  FFMPEG Concatenating videos with same 25fps results in output file with 3.554fps - Kendra Broom Newest 'ffmpeg' Questions - Stack Overflow
  I created an AWS Lambda function in node.js 18 that is using a static, ver 7 build of FFmpeg located in a lambda layer. Unfortunately it's just the ffmpeg build and doesn't include ffprobe. I have an mp4 audio file in one S3 bucket and a wav audio file in a second S3 bucket. I'm uploading the output file to a third S3 bucket. Specs on the files (please let me know if any more info is needed) Audio: wav, 13kbps, aac (LC), 6:28 duration Video: mp4, 1280x720 resolution, 25 frame rate, h264 codec, 3:27 duration Goal: Create blank video to (...)
• 14:00
  Slow frame copy from d3d11va to CPU memory in LibAV - Igor Newest 'ffmpeg' Questions - Stack Overflow
  I'm using LibAV to decode video (H.264) using dxva2 or d3d11va hardware decoder. I then copy the decoded video frame from the GPU memory to system memory by calling av_hwframe_transfer_data(). I noticed that when using the modern d3d11va hardware decoder, the CPU load is twice as much as when using the old dxva2 hardware decoder. I checked with LibAV 6.1 and with the old version V4.4 - the same result.
• 03:23
  How to save last 30 seconds of video in py - Mateus Coelho Newest 'ffmpeg' Questions - Stack Overflow
  I want the last 30 seconds to be recorded every time I click enter and sent to the cloud. for example, if I click at 00:10:30, I want a video that records from 00:10:00 to 00:10:30 and if I click in sequence at 00:10:32, I need another different video that in its content is recorded from 00:10:02 to 00:10:32. I think I have a problem where I will always end up recovering from the same buffer in the last 30 seconds. Is there any approach so that whenever I click enter I retrieve a unique video? Is my current approach the best for the problem? Or should I use something else? import (...)

4 juin

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

• 15:39
  Python streamlit app (You have requested merging of multiple formats but ffmpeg is not installed. Aborting due to --abort-on-erro) error [closed] - Praveen Kumar Newest 'ffmpeg' Questions - Stack Overflow
  If you use a YT media downloading app then it downloads the YT media without asking for ffmpeg. I am making a python streamlit app using yt-dlp and when I click on download button then it shows that *ffmpeg *is not installed and the other YT media downloading websites don't ask for any software, they just want us to paste the YT link and then selection the resolution without any need of installing ffmpeg. How to make setreamlit apps like these websites? python version: 3.12.3 These libraries I have imported in my code: import os import streamlit as st import (...)
• 21:58
  How to change metadata with ffmpeg/avconv without creating a new file? - Stephan Kulla Newest 'ffmpeg' Questions - Stack Overflow
  I am writing a python script for producing audio and video podcasts. There are a bunch of recorded media files (audio and video) and text files containing the meta information. Now I want to program a function which shall add the information from the meta data text files to all media files (the original and the converted ones). Because I have to handle many different file formats (wav, flac, mp3, mp4, ogg, ogv...) it would be great to have a tool which add meta data to arbitrary formats. My Question: How can I change the metadata of a file with ffmpeg/avconv (...)
• 15:58
  Getting FFProbe Information With Python - jesse Newest 'ffmpeg' Questions - Stack Overflow
  I've been attempting to figure this out for forever now (I'm new to programming) and I can't figure it out. I'm attempting to build a script that will test the file, and give me output from which I can get information like "Audio Format" that I can then put into the filename. However, I can't even get the script to return any file info. I've hit a wall at inserting an input file... So at this point I just need help getting it to spit out info based on the argvs I've thrown in. Hopefully I'll be able to figure out how to parse the (...)
• 11:38
  Issues with Publishing and Subscribing Rates for H.264 Video Streaming over RabbitMQ - Luis Newest 'ffmpeg' Questions - Stack Overflow
  I am working on a project to stream an H.264 video file using RabbitMQ (AMQP protocol) and display it in a web application. The setup involves capturing video frames, encoding them, sending them to RabbitMQ, and then consuming and decoding them on the web application side using Flask and Flask-SocketIO. However, I am encountering performance issues with the publishing and subscribing rates in RabbitMQ. I cannot seem to achieve more than 10 messages per second. This is not sufficient for smooth video streaming. I need help to diagnose and resolve these performance (...)
• 11:15
  How to reduce the binary size for FFMPEG library for android application - Ashwin Khadgi Newest 'ffmpeg' Questions - Stack Overflow
  In my Androdi project I am using the FFmpeg library to extract a thumbnail from a particular video frame (HLS). I am able to generate the thumbnail successfully but the final APK size increase by 100+ MB, any suggestion on how to reduce the APK size? I only need the library for generating thumbnail from HLS videos. I have tried different Packages options mentioned in the FFmpeg library but no major decrease in APK size. Also any other lightweight library for generating thumbnail will also work. Any suggestion is (...) -- FFmpeg
• 11:05
  Convert pcm_s16le audio to mp3 (in php with ffmpeg/sox/...)? - Loïc Newest 'ffmpeg' Questions - Stack Overflow
  I have a bin and a cue file (CD image) and I am making a website to be able to listen to my music. I managed to split the tracks and make a (44 bytes) wav header so my browser can read the audio but the wav files are too big to be read on an unstable connection (it's 1411kbps where an mp3 would be 320kbps or lower!). At first, is there a way to convert the audio to mp3 without making a temporary file in php? Maybe ffmpeg or sox could help? Secondly, I would like to be able to satisfy partial content requests (so I can skip without loading the whole file). I have already (...)
• 08:33
  ffmpeg throwing "errorMessage": "spawn ffmpeg ENOENT" - ian Newest 'ffmpeg' Questions - Stack Overflow
  My ffmpeg function thats running as a shell command isnt working. I think its because 'ffmpeg' isnt really referring to anything. I have the ffmpeg node module in my bundle, but i dont know the execFile command is referring to it here. Im following aws-lambda-ffmpeg as an example of how to call this particular function. They are referring to 'ffmpeg' as a 64-bit linux build they created from John Vansickle's static FFMPEG builds in their gulp function. I want to know how to replace 'ffmpeg' with something that will just recognize it (...) -- aws-lambda-ffmpeg, John Vansickle's static FFMPEG builds

3 juin

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

• 18:44
  How video editor show real time preview of videos? [closed] - SWIK Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to create a simple video editor that combine two video by layering one over another, i can easily do it with ffmpeg, but I am not sure how can I make a preview of it before making final video? How video editor display preview without building them? I am looking towards create a react application.
• 18:19
  ffmpeg use shell script to make video from multiple images and one audio with specific timestamps for each image [closed] - Trojosh Newest 'ffmpeg' Questions - Stack Overflow
  I have an audio file and I have 15 images. I would like to make a video from these 15 still images. Each image may appear for different number of seconds. E.g. Image 1,2,3 will take 3 seconds each but image 4 may take 40 seconds because it is more complex. How can I use a shell script that uses ffmpeg to specify timestamp for each image and add audio to the same. Also note that the sum of timestamps of all images = running time of the audio. I looked at this question and image2 filter option from the official documentation but no luck in producing such a (...) -- image2 filter option
• 14:54
  SharedArrayBuffer is not defined & SyntheticBaseEvent - Dain Park Newest 'ffmpeg' Questions - Stack Overflow
  thank you for your help with my problem. I am using FFmpeg.wasm on Next.js to compress videos when users upload them. I then send the videos to a server and save them on AWS S3. For the client side, I'm using Next.js. To solve the error "SharedArrayBuffer is not defined", I added the following code to next.config.mjs: /** ⓐtype import('next').NextConfig */ const nextConfig = reactStrictMode: false, async headers() return [ source: '/(.*)', headers: [ key: 'Cross-Origin-Opener-Policy',  (...)
• 06:46
  ffmpeg Command in Docker with Rust Tokio Closes Warp Server Connection (curl 52 Error) - user762345 Newest 'ffmpeg' Questions - Stack Overflow
  I’m encountering an issue where executing an ffmpeg concatenation command through Rust’s Tokio process in a Docker container causes subsequent HTTP requests to fail. The error occurs exclusively after running the ffmpeg command and making immediate requests, resulting in a “curl 52 empty response from server” error with the connection being closed. Notably, this issue does not occur when running the same setup outside of Docker. Additionally, if no HTTP requests are made after the ffmpeg command, the curl 52 error does not occur. Here is the verbose curl output of my minimum reproducible (...)
• 05:47
  ffmpeg drawtext on ubuntu : ffmpeg does not change text location [closed] - Wolf Wolf Newest 'ffmpeg' Questions - Stack Overflow
  I am designing a video editor bot for Telegram. I want to use ffmpeg and I need a text to be placed on the video and change the place of the text randomly every few seconds. [This has an example on the site itself.][1] used the following command: "/home/editor/downloads/video_2023-07-10_17-53-05_7375753324605210932.mp4" -filter:v drawtext="fontsize=30:fontfile=/usr/share/hellotext=hellotext/share/World': x=if(eq(mod(t\\,30)\\,0)\\,rand(0\\,(w-text_w))\\,x):y=if(eq(mod (t\\,30 )\\, 0)\\,rand(0\\,(h-text_h))\\,y)" -codec:v libx264 -codec:a copy -preset (...)

2 juin

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

• 20:33
  ffmpeg make video from multiple images and one audio with specific timestamps for each image [closed] - Trojosh Newest 'ffmpeg' Questions - Stack Overflow
  I have an audio file and I have 15 images. I would like to make a video from these 15 still images. Each image may appear for different number of seconds. E.g. Image 1,2,3 will take 3 seconds each but image 4 may take 40 seconds because it is more complex. How can I use ffmpeg to specify timestamp for each image and add audio to the same. Also note that the sum of timestamps of all images = running time of the audio. I looked at this question and image2 filter option from the official documentation but no luck in producing such a (...) -- image2 filter option
• 14:49
  How to use the actual frame numbers in filenames using ffmpeg when extracting frames? [closed] - Joan Venge Newest 'ffmpeg' Questions - Stack Overflow
  Basically I am using ffmpeg to extract every Nth frame from a video. But the filenames appear sequentially from 1 to X. I want to use the actual frame numbers so if it's every 30th frame, then the filenames should be 0, 30, 60, etc. Is this possible? I am doing this in Python using this function: def extract_and_compress_frames(directory, frame_interval=1, crop_width=192, crop_height=108, offset_x=0, offset_y=0): for filename in os.listdir(directory): if filename.endswith(".trec"): # Construct full file path trec_path = os.path.join(directory, (...)
• 09:28
  How can I overlay multiple images with fade-in using ffmpeg? [closed] - strangerD Newest 'ffmpeg' Questions - Stack Overflow
  In the working folder, there are text1.png text2.png video.mp4 (all sizes 400x400) I would like to overlay text1 and text2 on this video.mp4 while fading them in. If it was just one image, I could make it with the code below, so I am currently researching ways to improve the code below. ffmpeg -i video.mp4 -loop 1 -i text1.png -filter_complex "[1]fade=in:st=2:d=1:alpha=1[i];[0][i]overlay=x=0:y=0:shortest=1;" output.mp4 Below is the code I created based on the manual and information I found on Google. ffmpeg -i video.mp4 -loop -i text1.png (...)
• 21:45
  File concat error using ffmpeg - user1211499 Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to concat two files using ffmpeg. I have a file input.txt where I have written file "1.mpg" file "2.mpg" and the command i am using ffmpeg -f concat -i input.txt -codec copy output.mpg but i am keep getting this error impossible to open \\1.mpg and input.txt: Invalid argument. any help will be appreciated
• 09:07
  ffmpeg - converting webm videos generated by Chrome is slow - Nuthinking Newest 'ffmpeg' Questions - Stack Overflow
  I generate webm files in two different ways. One using Chrome WebRTC MediaRecorder, the other one is using a js library which generates the webm video frame by frame (webm-writer-js). The file size of the videos generated is not that different, the fast one is 60% of the slow one but the difference in speed is 1000% Using the basic ffmpeg syntax -i input.webm output.mp4 the files created with Chrome's media recorder take in fact almost 10x time to be converted. The conversion logs differ slightly but overall look very similar to my novice eyes. On the left the fast (...) -- webm-writer-js,