ffprobe

问题 After several hours I have narrowed down the issue with the garbled audio to be the 2-seconds silence audio mp3 I am appending (I think I had produced it once with Wavelab) However, I tried using ffmpeg according to a post to produce a similar 2 seconds audio but it too will corrupt/garble/chop voice in the final concatenation of audio files. ffmpeg -f lavfi -i anullsrc=r=44100:cl=mono -t 2 -q:a 9 -acodec libmp3lame SILENCE_2sec.MP3 I typically will have several audio files to concatenate

问题 My process is in 3 steps Step 1) Corresponding to each bitmap I have 00.JPG ... NN.JPG I combine a list of "SOURCE" mp3 audio into a single audio mp3 to produce matching 00.MP3 ... NN.MP3 I had glitch here where one my mp3 was not of the correct Sample Rate, however a kind soul in this forum helped me fix that. You can read the details here: When I append a silent audio (mp3) to an existing list of audio it garbles the final audio? Step 2) combine each mp3 from previous with a the filename

问题 I am trying to generate video thumbnail in my node project for that I tried thumbsupply and video-thumbnail npm both returns the same error called not found: ffprobe const thumbsupply = require('thumbsupply'); const ffprobe = require('@ffprobe-installer/ffprobe'); let aa = thumbsupply.generateThumbnail('videoplayback.mp4', { size: thumbsupply.ThumbSize.MEDIUM, // or ThumbSize.LARGE timestamp: "10%", // or `30` for 30 seconds forceCreate: true, cacheDir: "~/myapp/cache", mimetype: "video/mp4"

问题 I'm trying to make a simple function to wrap around FFProbe , and most of the data can be retrieved correctly. The problem is when actually printing the strings to the command line using both Windows Command Prompt and Git Bash for Windows, the output appears mangled and out of order. Some songs (specifically the file Imagine Dragons - Hit Parade_ Best of the Dance Music Charts\80 - Beazz - Lime (Extended Mix).flac ) are missing metadata. I don't know why, but the dictionary the function

问题 I'm trying to make a simple function to wrap around FFProbe , and most of the data can be retrieved correctly. The problem is when actually printing the strings to the command line using both Windows Command Prompt and Git Bash for Windows, the output appears mangled and out of order. Some songs (specifically the file Imagine Dragons - Hit Parade_ Best of the Dance Music Charts\80 - Beazz - Lime (Extended Mix).flac ) are missing metadata. I don't know why, but the dictionary the function

问题 I'm trying to make a simple function to wrap around FFProbe , and most of the data can be retrieved correctly. The problem is when actually printing the strings to the command line using both Windows Command Prompt and Git Bash for Windows, the output appears mangled and out of order. Some songs (specifically the file Imagine Dragons - Hit Parade_ Best of the Dance Music Charts\80 - Beazz - Lime (Extended Mix).flac ) are missing metadata. I don't know why, but the dictionary the function

问题 My goal is simple , I have several webm files need to be concated, but first I need to determine their durations. It seems webm file are played as streams, so there is no way to tell the length of each file. I have been using ffprobe to do the job ,but the duration returned is N/A.The command I use was: ffprobe -i input.file -show_format | grep duration thanks. The complete output of ffprobe list below: ffprobe version 2.6.2 Copyright (c) 2007-2015 the FFmpeg developers built with Apple LLVM

问题 I am using Zeranoes FFmpeg Builds for Windows and I can start the ff-prompt without installing anything. But how do I start ff-prompt.bat with Windows PowerShell? I have tried a few things like Invoke-Expression or changing the $env:Path but nothing seems to work, because all I get is the message "C:\Users\Administrator>ECHO OFF bin\ffmpeg.exe could not be found." Is it even possible to start ff-prompt with PowerShell? Every suggestion / solution is more than welcome. My goal is to have a

问题 I was recording something with vlc off v4l2 (in case that makes a difference), and I just selected the first format that worked, being mpeg2 using TS container. File resulted in .ts extension, as automatically selected by vlc. When I then tried to put the video file in my video editor, it said the video was 19,884 hours long, when it should be about 6 minutes (it is ~80mb in size). When I try to play it in xine, it correctly shows the duration (vlc doesn't), and when I use ffprobe : [mpegts @

问题 I want to extract audio from a video downloaded with youtube-dl on Windows. I got youtube-dl working, but am unable to extract the audio. This problem is caused due to not having the correct audio codes installed. When I try to extract audio it tells me the following: WARNING: unable to obtain file audio codes with ffprobe The youtube-dl manual says: -x -extract-audio convert video files to audio-only files (requires ffmpeg or avconv and ffprobe or avprobe) How do I install ffprobe or ffmpeg?