26 septembre

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

• 20:51
  Why does ffmpeg not produce data in a NodeJS child_process? - Chris Newest 'ffmpeg' Questions - Stack Overflow
  I'm developing a suite of NodeJS-based tools that accepts a real-time audio pipeline from a Websocket connection (Webaudio API format), resamples the audio, and sends it along to downstream services. I built an in-house Transform that I'm hesitant to maintain long-term, so I'm exploring the use of ffmpeg (specifically the npm package ffmpeg-static to use in the process instead, given its long history and maintenance by way better engineers than myself. However, when I use ffmpeg in the context of child_process.spawn to directly convert the Float32 array into (...)

25 septembre

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

• 23:08
  Using ffmpeg to cut audio from/to position [closed] - Mike Newest 'ffmpeg' Questions - Stack Overflow
  I need to cut parts from an audio file from position to position. When I tried this command ffmpeg -ss 132 -t 139 -i original.mp3 new.mp3 it started at the second 132, and added the next 139 seconds to the new file. What I need is from second 132 to second 139. And when I tried ffmpeg -ss 132 -to 139 -i original.mp3 new.mp3 it gives me an error: Unrecognized option 'to' Failed to set value '139' for option 'to' (I don't want to tell how many seconds to take, (...)
• 06:47
  FFmpeg QuickTime to MP4 conversion drastically reduces video duration (6 seconds becomes 1 second) - Jaskaran Newest 'ffmpeg' Questions - Stack Overflow
  I'm recording screen content in Safari which generates QuickTime files. I convert these QuickTime files to MP4 format using FFmpeg in Node.js. However, the converted MP4 files have significantly shorter duration than the original QuickTime files. Original QuickTime file: 6 seconds Converted MP4 file: 1 second Environment Platform: Node.js with TypeScript FFmpeg library: fluent-ffmpeg Input format: QuickTime (.quicktime) Output format: MP4 Recording source: Safari screen recording FFmpeg Setup import ffmpeg from (...)

24 septembre

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

• 13:07
  FFmpeg cannot connect to Nginx RTMP server in my StreamHub project [closed] - Krishnam Biyani Newest 'ffmpeg' Questions - Stack Overflow
  I’m working on a small streaming project, where I use Nginx with the RTMP module to handle live streams. My Nginx config (simplified): rtmp server listen 1935; application live live on; record off; I start the server successfully. Then I try to push a stream using FFmpeg: ffmpeg -re -i test.mp4 -c copy -f flv rtmp://localhost/live/stream But I get this error: [rtmp ⓐ 0x563f...] Cannot connect to server rtmp://localhost/live/stream rtmp://localhost/live/stream: Operation not permitted What (...)

23 septembre

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

• 20:37
  Cut multiple parts of a video with ffmpeg - Mike Baum Newest 'ffmpeg' Questions - Stack Overflow
  In what I'm trying to do, I need to remove some parts of a video file, and create a new one from that. For example, from a video file like this: =================== I make two cuts ======||=====||||== and generate a new smaller video file: ============= And when I say 2, I mean an arbitrary number of separate cuts, depending on the video file. If I wanted to cut just one part I would do: ffmpeg -i video.mp4 -ss 00:00:03.500 -to 00:00:08.500 -async 1 cut.mp4 -y Which (...) -- https://github.com/kkroening/ffmpeg-python
• 11:52
  record video from website using puppeteer + ffmpeg - rudolfninja Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to record video from website using the way similar to puppeteer-recorder, but I want to stop recording by myself and then save it to file (after I stopped it). I wrote simple web service for this purpose: var express = require('express'); var app = express(); const spawn = require('child_process'); const puppeteer = require('puppeteer'); var record = true; app.get('/startRecord', function (req, res) const frun_record = async () => console.log("Start recording"); const browser = (...) -- puppeteer-recorder
• 07:03
  avcodec_find_encoder(AV_CODEC_ID_H264) returns null - Monjura Rumi Newest 'ffmpeg' Questions - Stack Overflow
  I am building an android application which will encode image captured from camera preview and later decode it. I am using ffmpeg library to encode and decode. To build static library with x264 I have used this tutorial. http://dl.dropbox.com/u/22605641/ffmpeg_android/main.html. As a source code of ffmpeg if I use the one downloaded from the link given in tutorial I can built it but can't build library if i use source code downloaded from here git clone git://source.ffmpeg.org/ffmpeg.git ffmpeg. I have built library in ubuntu and using it in windows 7 in Eclipse. As I need only h264 (...)
• 08:03
  Real time voice communication using raspberry pi: Error in decoding ffmpeg data at receiver side - Prakriti Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to develop a real time voice communication system using raspberry pi My 2 raspberry are connected to each other using UART link (its necessary for further development) so I am limited to baudrate 115200. I have 2 headsets connected to both the raspberry and the expected sample rate is 44100. Now since I am restricted in baudrate, I am trying to compress my voice using g.726 codec. Also since G.726 codec works only for 8000 sampling rate, at Tx side i downsample my voice to 8000 and at Rx side after decoding I upsample it back to 44100. I am trying to use ffmpeg (...)

22 septembre

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

• 20:27
  How to concatenate two MP4 files using FFmpeg? [closed] - Mark L Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to concatenate two mp4 files using ffmpeg. I need this to be an automatic process hence why I chose ffmpeg. I'm converting the two files into .ts files and then concatenating them and then trying to encode that concatenated .ts file. The files are h264 and aac encoded and I'm hoping to keep the quality the same or as close to original as possible. ffmpeg -i part1.mp4 -vcodec copy -vbsf h264_mp4toannexb -acodec copy part1.ts ffmpeg -i part2.mp4 -vcodec copy -vbsf h264_mp4toannexb -acodec copy part2.ts cat part1.ts part2.ts > parts.ts ffmpeg -y -i (...)
• 20:27
  ffmpeg was not found. How do i fix this? - Ice Cr3aM Newest 'ffmpeg' Questions - Stack Overflow
  So im trying to make a simple discord music bot, which is halted right now due to this problem. The issue is that everytime i try to play a music through youtube_dl library, it pops up with the prompt: "ffmpeg was not found". This is the main.py import discord import os import asyncio import youtube_dl import ffmpeg token = 'NzY5NTUzNDcwNjAwMTE4Mjgz.G3Dzce.XYKNAyLfBPg0ug5XPKssV-9EvsFjBlCMeM43ag' client = discord.Client() block_words = ['foo', 'bar', 'baz', 'quux', (...)
• 18:28
  Can't get a "ffmpeg_g" file during making a "static" ffmpeg - pyzone Newest 'ffmpeg' Questions - Stack Overflow
  Currently I'm trying to get a static-linked ffmpeg from source rpi-ffmpeg git. It's a Raspberry Pi oriented fork of original ffmpeg. And my working environment is RaspiOS (port of Debian "bookworm") on RPi4B. I'm using a slightly modified "configure" command taken there. I want to enable support for libx264 and libx265 which is disabled by default. I already have compiled this source as "shared enabled" and even have made a .deb package that contains all ff-tools and related libraries but have encountered some dependencies conflict during "apt install ". (...) -- rpi-ffmpeg git, there
• 15:55
  Streaming server either with VLC or FFMPEG - hkottmann Newest 'ffmpeg' Questions - Stack Overflow
  I'm using my desktop computer to listen music either from my local collection or from my favorite radio using an mp3/128 kbps stream. Unfortunately every break in streaming (interrupting bored discussions or annoying music tracks) result in being bored with 20 to 30 seconds of ads. That's why i want to use a simple streaming server the keeps the connection to the radio station open at any time to avoid this. First I've tried to install a script for a VLC streaming server which is started as systemd service, works fine so far, but the id3 (mp3 meta information like (...)
• 12:04
  Problem in compiling c++ codes including FFmpeg libraries using em++ into WebAssembly - ali Newest 'ffmpeg' Questions - Stack Overflow
  When I try to compile FFmpeg to WebAssebly I got wasm-ld-13: error: unknown file type: demux.o, I configure and install FFmpeg (ffmpeg-8.0) using: emconfigure ./configure \\ --prefix=$(pwd)/installed \\ --enable-cross-compile \\ --target-os=none \\ --arch=x86 \\ --cpu=generic \\ --disable-x86asm \\ --disable-inline-asm \\ --disable-programs \\ --disable-doc \\ --disable-debug \\ --disable-network \\ --disable-autodetect emmake make -j$(nproc) emmake make install And I compile my c++ code (...)
• 09:15
  ffmpeg convert rtmp audio/video stream to icecast2 audio/video stream - Solomon Thatcher Newest 'ffmpeg' Questions - Stack Overflow
  I've been using this command to convert my public rtmp audio/video stream to a local mp3 audio icecast2 stream, but I have been unable to do the same for both video and audio. [Audio Only] (This works fine) ffmpeg -re -i rtmp://162.142.xx.xxx:xxx/stream -vn -codec:a libmp3lame -b:a 128k -f mp3 -content_type audio/mpeg icecast://source:passwordⓐ192.168.1.xxx:80/live I've tried to re-write in order to support video, but I keep hitting dead ends [Audio & Video Attempt] (this does not work) ffmpeg -re -i rtmp://162.142.xx.xxx:xxx/stream -codec:v -f mpeg4 (...)

21 septembre

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

• 12:34
  JPG to MP4 using FFmpeg? [closed] - Mike Newest 'ffmpeg' Questions - Stack Overflow
  I have an application that generates JPG files at a fixed FPS (currently 40). Every 1 minute I run a shell script (via Cron) that runs the following command (there are some others, but this is the main command): ffmpeg -framerate 40 -i $i'/img%04d.jpg' -r 40 -c:a aac -vcodec libx264 -vf format=yuv420p $mp4file Where $i is the directory and $mp4file is the output mp4 file. This combines all of the JPG files into the single MP4 container and works really well. However, I've done this just for testing, to prove a concept, and I'd like to perform the (...)

20 septembre

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

• 16:05
  Combine images into video (with audio in background) in ffmpeg [closed] - Mayank Thapliyal Newest 'ffmpeg' Questions - Stack Overflow
  I have a folder with 15 images and 1 audio file: image_1.jpg, image_2.jpg, image_3.jpg ..... and music.webm (Also resolution of images is 1440x720) I want to combine these images into a video with audio in background.And framerate I require is 0.2 (5 second for each frame).I gave a search on Stackoverflow and I found the nearest example and tried.But it failed. ffmpeg -f image2 -i image%03d.jpg -i music.webm output.mp4 (Actually I have very little knowledge of ffmpeg so please excuse my foolishness) Please help me with my issue.(Also I didn't understood (...)
• 10:03
  Create an HD video with ffmpeg with multiple non-HD images [closed] - Mathieu Newest 'ffmpeg' Questions - Stack Overflow
  I would like to create an HD video with ffmpeg, with an audio, the length of the audio is the length of the video n images of different sizes, and these images appear audio_length/n of the times the images are not necessarily HD, so they should be centered at the video I get this version, but images are stretched, not centered: ffmpeg -i result.wav -framerate 1/5 -start_number 1 -reinit_filter 0 -i img%d.png -vf "scale=1920:1080:force_original_aspect_ratio=decrease:eval=frame,pad=1920:1080:-1:-1:eval=frame" -r 25 -c:v libx264 (...)

19 septembre

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

• 23:49
  FFMPEG Dual-GPU broke hw_init_device etc [closed] - Brach Newest 'ffmpeg' Questions - Stack Overflow
  Hi i just added a second GPU to my PC and ill make it short I used to use: init_hw_device opencl=gpu:0.0 -filter_hw_device gpu The first GPU is the Radeon one as always so this makes no sense. now its broke, i found how to check nvenc so i assume ill leave that question aside, but nothing about openCL or radeon GPU's, i did some testing and took some answers on the web but few examples... so i guess 2h searching for this is enough and i have to ask. i need to use my OpenCL filters if possible, jej. Any idea? or maybe where can i find all (...) -- https://github.com/jellyfin/jellyfin/issues/10129