13 mai

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

• 18:38
  Why every audio part is louder in FFmpeg when I join them in one audio? - Volodymyr Bilovus Newest 'ffmpeg' Questions - Stack Overflow
  I trying to make dubbing for audio. I have original audio track and I want to put translated audio parts on top of the original. translated audio 100% vol: --p1--- ---p2-- -----p3--- --p4-- original audio 5% vol: ----------------------------------------- Here is my FFmpeg command with filter_complex ffmpeg -i video_wpmXlZF4XiE.opus -i 989-audio.mp3 -i 989-audio.mp3 -i 989-audio.mp3 -i 989-audio.mp3 \\ -filter_complex "\\ [0:a]loudnorm=I=-14:TP=-2:LRA=7, volume=0.05[original]; \\ [1:a]loudnorm=I=-14:TP=-2:LRA=7, adelay=5000|5000, volume=1.0[sent1]; (...) --
• 20:04
  D3D11 hardware screen recording with ffmpeg using Intel H264 QSV hardware encoding - Cactus Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to screen record using ffmpeg and having it all done via hardware on my Intel integrated graphics. Specs For reference, here are my specs: Windows 11 Pro Version 10.0.22631 Build 22631 Model: Dell Inc. OptiPlex 3090 Processor: 11th Gen Intel(R) Core(TM) i3-1115G4 ⓐ 3.00GHz, 2995 Mhz, 2 Core(s), 4 Logical Processor(s) Terminal: Windows Terminal using Windows Powershell In this wiki, it looked like I could use the "Windows 8+ Desktop Duplication API" to be "directly encoded by a compatible hardware encoder" — so I thought that I (...) -- wiki, page
• 15:57
  Why every audio part louder in FFmpeg while I join them in one audio? - Volodymyr Bilovus Newest 'ffmpeg' Questions - Stack Overflow
  I trying to make dubbing for audio. I have original audio track and I want to put translated audio parts on top of the original. translated audio 100% vol: --p1--- ---p2-- -----p3--- --p4-- original audio 5% vol: ----------------------------------------- Here is my FFmpeg command with filter_complex ffmpeg -i video_wpmXlZF4XiE.opus -i 989-audio.mp3 -i 989-audio.mp3 -i 989-audio.mp3 -i 989-audio.mp3 \\ -filter_complex "\\ [0:a]loudnorm=I=-14:TP=-2:LRA=7, volume=0.05[original]; \\ [1:a]loudnorm=I=-14:TP=-2:LRA=7, adelay=5000|5000, volume=1.0[sent1]; (...) --
• 15:32
  ffmpeg python error when adding subtitles - Clara Ogalla Newest 'ffmpeg' Questions - Stack Overflow
  When I run it I think there is an error with the subtitle path, but I can't solve it. The error in terminal: [Parsed_subtitles_0 ⓐ 0000019bcc509780] Unable to parse option value "UsersclaraDocumentsProyectosSubtitulossubtitulosDoctor Who - 1x05 The Keys Of Marinus - Part 6 The Keys Of Marinus_track4_spa.srt" as image size Error applying option 'original_size' to filter 'subtitles': Invalid argument [vost#0:0/libx264 ⓐ 0000019bce220480] Error initializing a simple filtergraph Error opening output (...)
• 14:12
  sending video issue whatsapp-web.js - Shahar Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to send an mp4 video as a sticker but i get an error, here's my code client.on("message", (message) => const media = MessageMedia.fromFilePath("./vid.mp4"); client.sendMessage(message.from, media, sendMediaAsSticker: true ); but I get this error handleExit(new Error('ffmpeg exited with code ' + code)); ^ Error: ffmpeg exited with code 1: pipe:0: Invalid data found when processing input Cannot determine format of input stream 0:0 after EOF Error marking filters as finished Conversion (...)
• 12:47
  Flutter: How to use "ffmpeg_kit_flutter" to merge videos? - Hani Kanakri Newest 'ffmpeg' Questions - Stack Overflow
  i am using "ffmpeg_kit_flutter" to merge two videos with code import 'dart:io'; import 'package:ffmpeg_kit_flutter/ffmpeg_kit.dart'; import 'package:ffmpeg_kit_flutter/abstract_session.dart'; import 'package:ffmpeg_kit_flutter/return_code.dart'; import 'package:flutter/material.dart'; import 'package:flutter_bloc/flutter_bloc.dart'; import 'package:wechat_assets_picker/wechat_assets_picker.dart'; import (...)
• 11:08
  "fixing" RTL texts from logical to visual, before embedding in video as subtitles with ffmpeg - Berry Tsakala Newest 'ffmpeg' Questions - Stack Overflow
  I'm searching for the correct way to pre-process my subtitles files before hard-coding them into video clips. Currently, ffmpeg does not process RTL (right-to-left) languges properly; I have detailed the problem here: https://superuser.com/questions/1679536/how-to-embed-rtl-subtitles-in-a-video-hebrew-arabic-with-the-correct-lan However, there could be 2 programmatic solutions: adding certain unicode control characters can fix (or partially fix) the text, which is then fed into ffmpeg, giving good results. character 0x200F at the end of a hebrew (...) -- unicode control characters
• 09:15
  How do I add environment variables to path in python? - JustThisWeeb Newest 'ffmpeg' Questions - Stack Overflow
  I made a python script to install FFmpeg and add it to path in Windows, but it seemed to have no effect at all. It doesn't give me any errors or anything. It literally just does nothing at all. This was the code I used: os.environ["Path"] += f"os.getcwd()/ffmpeg-7.0-essentials_build/bin" os.environ.update() and I tried several iterations of "path" including "PATH", "Path", "path" and none of them made a difference. I also tried making a new variable: new_environ = os.environ["Path"] + (...)
• 07:43
  Nix package: Pass build flag --extra-cflags to ffmpeg at compile time - catleeball Newest 'ffmpeg' Questions - Stack Overflow
  I'm a little inexperienced with Nix and NixOS and am struggling a bit with this ffmpeg source build. Any advice is appreciated! Goal Build ffmpeg from source with --extra-cflags="-pipe -O3 -march=znver3 -ffat-lto-objects", ideally using a flake or overlay or similar so that I can build off the existing ffmpeg nix package and maybe even reproducible builds. Attempts I've been trying to follow different advice I've seen online, but looking at ffmpeg in nixpkgs, I'm not sure what I could patch or override. Since configureFlags happens inside the (...) -- ffmpeg in nixpkgs, configureFlags, this github repo
• 06:11
  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 (...)
• 02:18
  How to encode mp4 so that Apple devices can stream VP9 encoded Videos via fmp4 HLS? - Leon S Newest 'ffmpeg' Questions - Stack Overflow
  The question is in the title... I have not figured it out, obviously Youtube has achieved that, but how could i do it in my own app so that i can effectively stream vp9 encoded content in my app. Would be great to get a solution, maybe some ffmpeg settings or something like that? I know that it is officially not supported, but everywhere i look they say that it is still possible, and even "quite easy", e.g. here: https://www.streamingmedia.com/Articles/ReadArticle.aspx?ArticleID=133907 Trief multiple fmp4 encodings so far for vp9 but neither my app player nor safari (...) -- https://www.streamingmedia.com/Articles/ReadArticle.aspx?ArticleID=133907

12 mai

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

• 16:36
  Adding Dynamic Progress Bar to FFMpeg Video Output (Mac) [closed] - saurav tripathi Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to add a dynamic progress bar to the bottom of a video using ffmpeg on my Mac. Here's the command I'm currently using: ffmpeg -i "/Volumes/hard-drive/Auto-pilot-video/upload-ready-video/one-two-ka-four.mp4" -filter_complex \\ "[0:v]drawbox=y=ih-20:color=yellowⓐ0.5:width=iw*(t/606.15):height=20:t=fill[v]" \\ -map "[v]" -map 0:a -c:a copy -preset fast output.mp4 Question: As you can see in the image right now, it just a fixed yellow bar at the bottom of the screen. But instead of just fixed at bottom I want a dynamically moving bar at (...) --
• 14:32
  I am unable to decode the frames in python using ffmpeg [closed] - Saail Chavan Newest 'ffmpeg' Questions - Stack Overflow
  import pylwdrone import cv2 import numpy as np # Initialize the LWDrone object drone = pylwdrone.LWDrone() # Start the video stream for packet in drone.start_video_stream(): try: # Print the size of the frame data print("Packet frame bytes size:", len(packet.frame_bytes)) # Print a portion of the frame data (first 100 bytes) print("First 100 bytes of frame data:", packet.frame_bytes[:100]) # Convert the frame data to numpy array frame = np.frombuffer(packet.frame_bytes, dtype=np.uint8) # Get the (...)
• 19:11
  How to batch process with ffmpeg script, but do each step in a loop instead of two stages - Matt Newest 'ffmpeg' Questions - Stack Overflow
  I'm a novice script editor. I convert MOV/AVI video files to MP4 format using a script with ffmpeg and then move the files after processing: for f in *.mov; do ffmpeg -y -i "$f" "$f%.mp4"; done mv -f *.mov /Users/me/Videos/mov mv -f *.MOV /Users/me/Videos/mov mv -f *.avi /Users/me/Videos/avi mv -f *.AVI /Users/me/Videos/avi Currently the script converts all videos, then moves them all to the other folders. Please how can the script be adjusted so that each video is moved immediately after processing (instead of waiting until all are complete)? (...)
• 18:45
  piping data into an ffmpeg subprocess. Why does write() get stuck? [closed] - Tebyy Newest 'ffmpeg' Questions - Stack Overflow
  It displays the number of frames at the beginning and shows that there are over 300, but when I count all the frames in the loop, the last one I see is 53, and then it only displays the value of 'ret', which is always true. I'm wondering what could be causing this issue of not reading all the frames, resulting in the file not being closed after reading. From what I've read, 'ret' should return false when there are no more frames to read, but because it's not reading all the frames, this isn't happening. Does anyone have any idea what could be (...) -- Tested Video
• 11:28
  Pyzam gives an error, Pyzam does not work. [red]Error: ffmpeg file not found in $PATH[/red] [duplicate] - Да не знаю я Newest 'ffmpeg' Questions - Stack Overflow
  I wanted to make a program that defines music, well, like shazam. I came across Pyzam. I tried it, it doesn't work. Returns the error: [red]Fatal: ffmpeg not found on $PATH[/red] to the command: pyzam -- input mando.mp3. There is a mando.mp3 file in the folder where I run the program. I write the command on the command line. Windows 10. FFmpeg is available on disk C from the official website.
• 14:11
  How to apply --speed flag for ffmpeg-kit in React Native (Expo)? - Michota Newest 'ffmpeg' Questions - Stack Overflow
  Where do i place speed flag? Currently my plugins look like this "plugins": [ [ "ⓐconfig-plugins/ffmpeg-kit-react-native", "package": "min-gpl" ] ], I use expo sdk 51. I've tried placing it next to package name, but it didn't work. -- speed
• 14:26
  Convert m3u8 file to mp4 file in React Native Expo - DRx Newest 'ffmpeg' Questions - Stack Overflow
  How can I convert m3u8 file to mp4 file in React Native Expo? I have tried to convert m3u8 file to mp4 using FFmpegKit but I have this errors: 'Cannot read property 'getLogLevel' of null' and 'Cannot read property 'ffmpegSession' of null' Also building with this package failing (Could not determine the dependencies of task ':ffmpeg-kit-react-native:compileDebugAidl'.). Is there a simple and easy way to convert m3u8 file in React Native Expo? Code I have used: import FFmpegKit from (...)
• 12:08
  python ffmpeg configuration for command - RobyJ Newest 'ffmpeg' Questions - Stack Overflow
  I want to convert mp3 files to mp3 but with my settings. Could someone help me to create python code or a command for cmd to perform such action with ffmpeg? I have hundreds of mp3 files so I need to automate it. Settings are in below picture. I tried myself to configure it, but I had problems with finding in ffmpeg docs information about bit rate mode and quality settings. --
• 10:37
  FFmpeg image swipe animation - zetrabit Newest 'ffmpeg' Questions - Stack Overflow
  I want to animate with ffmpeg as in the picture. The animation must be 3 seconds long. Zoom in for 0.5 seconds at the beginning of the video Swipe left for 1 second Swipe right for 1 second Zoom out for 0.5 seconds. I have a 3 images. Is this possible? i'am tryging ffmpeg (python or php or msdos) >Example image -- Example image
• 09:47
  ffmpeg - I want to concat multiple videos (front / rear) with overlay and one second delay - Andrej Florjančič Newest 'ffmpeg' Questions - Stack Overflow
  I try to write bash script to concat front and rear video files with delay 1 second at start and overlay rear over front. I wrote the following bash script: # Define the output file output_file="$VIDEO/final_output_$choice.mp4" # Collect and sort the video files front_files=( $(ls *_F.MP4 | sort) ) rear_files=( $(ls *_R.MP4 | sort) ) # Create a file to hold ffmpeg input commands and filter scripts input_list="input_files.txt" filter_script="filter_complex.txt" inputs="" # Clear the input list and filter script files echo "" > (...)
• 00:27
  Error loading trimmed video produced by FFMPEG - Bryan Carty Newest 'ffmpeg' Questions - Stack Overflow
  I've been trying to trim a video using FFMPEG within some javascript code. The code executes without throwing any errors. try const command = `ffmpeg -i $ CROPPING_DIR + CROPPED_VIDEO_PREFIX + id + ".mp4" -ss 00:00:04 -to 00:00:06 -c copy $ CROPPING_DIR + TRIMMED_VIDEO_PREFIX + id + ".mp4" `; console.log(command); const stdout, stderr = await exec(command); return "NA"; catch (error) console.error("Error executing ffmpeg command:", error); In VsCode, I am unable to view the (...)

11 mai

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

• 23:17
  Losslessly Split Videos by Size [closed] - user1897354 Newest 'ffmpeg' Questions - Stack Overflow
  How do I losslessly split videos by file size? For example, I have a 1.92GB video and I want to split it into 200MB videos. I tried using ffmpeg and putting in -fs, -c copy, and 200000000 for 200MB, but I only got one file that's not even the correct file size. How do I properly use it?