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Questions tagged [mp4box]

108 questions
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How to make MPEG-DASH to stream different qualities based on time slices

i am exploring MPEG-DASH technique for video adaptation. As a test case, i have two versions of the same video with different resolutions 400x250(1.mp4) & 640x360(2.mp4) and want to stream it via MPEG DASH. Using GPAC - MP4Box i have generated the…
Muhammad Jawad
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Adding audio to multiple mp4 files using mp4box

I am trying to add the same audio file to a large number of mp4 files (that currently have NO audio stream). I am pretty sure I have used the following code (in a .bat file) successfully in the past: for %%a in (*.mp4) do mp4box %%a -add…
Brian Cameron
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Issue installing MP4Box: "image not found Abort trap: 6"

I installed GPAC on a mac running OSX 10.13, and then followed a tutorial to install MP4box by doing: sudo cp /Applications/GPAC.app/Contents/MacOS/MP4Box /usr/local/bin sudo cp -R /Applications/GPAC.app/Contents/MacOS/lib/* /usr/local/bin …
jcu
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VLC is unable to play mpd file: main decoder error: buffer deadlock prevented

I tried to implement HTTP adaptive stream over mininet. I have converted the video file into five different quality versions. MP4BOX generates the video files successfully. However, when I try to request the mpd file with vlc only audio plays with…
Kai
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MP4Box: Concatenating track ID 1 even though sample descriptions do not match

Essentially, I wish to concatenate a series of videos using MP4Box. When I attempt to do so, I receive the following error: No suitable destination track found - creating new one (type soun) 0.500 secs Interleaving I can circumvent the issue, at…
Lysander Cox
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ffmpeg or MP4box how to convert video to universal playable Mpeg-DASH or HLS

What is the "good" way to encode (from any format like webm, rtmp) to UNIVERSALLY PLAYABLE hls or dash format ??? I see tons of talks about HLS and MPEG-DASH with video tag that looks like this
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How to use output file in another powershell command?

I'm using auto-editor first to cut out motionless parts, then Mp4Box to add my intro. I can't figure out how to automatically use the output from auto-editor into Mp4Box. This is what I have so far. Get-ChildItem -Filter *.mp4 | ForEach -Process…
user2900905
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reencode non-fragmented mp4 into fragmented mp4

I'm using MediaSource extension to play videos. However,MediaSource only supports fragmented MP4 videos. How can I convert a non-fragmented MP4 video into a fragmented MP4 video in JavaScript so that I can use MediaSource to play the video? MP4Box's…
now_world
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Create different qaulities for my manifest with only mp4box

I asked a question on slack on why the quality and bitrate of my dash video wasn't changing and I got this response: You only have one quality in your manifest. there is no way for the player to choose a different one So how can I create different…
Ted Bed
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How to create fragemented file with mp4box.js

I know that you can do this to create a dash file: MP4Box -dash 10000 -frag 1000 -rap -single-segment test.mp4 But what would the equivalent (giving a filename, and converting it to a dash file) be in javascript where I link mp4box.js via cdn? I've…
Ted Bed
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Raspberry Pi 4 saving corrupt h264 files?

I've been able to record .h264 files without a problem, both using raspivid and through Python, but whatever I try, I can't convert them to a .mp4, .mkv or .avi file. I've tried converting using MP4box (suggested in several places) and mkvmerge, but…
wimg
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How to make file .mpd for adaptive streaming supported on iOS device

I would like to do DASH Adaptive Streaming in Ubuntu server. I used ffmpeg and MP4Box to convert video to .mpd file. Below is command that I use for convert and to generate a file ffmpeg -i myvideo.mp4 \ -vcodec libx264 \ -profile:v main -level 3.1…
thxbox
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Standardized "Skip Intro" in MP4 video files?

Is there a standardized way to mark up specific parts of a MP4-contained video as skippable, e.g. trailers, recaps, intros/outros, opening/closing credits, in the metadata in the file itself? If possible, I would like to set this with FFmpeg or…
Crissov
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How to add a Poster Frame to an MP4 video by timecode?

The mvhd atom or box of the original Quicktime MOV format supports a poster time variable for a timecode to use as a poster frame that can be used in preview scenarios as a thumbnail image or cover picture. As far as I can tell, the ISOBMFF-based…
Crissov
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Converting vídeo from vp8 to x264 outputs different video with different length

I have a webm file (vp8 codec) with 2m:39s of duration Using ffmpeg -i video.webm it says that the video have 15fps nput #0, matroska,webm, from 'video.webm': Metadata: encoder : Lavf54.17.3 Duration: 00:02:39.63, start:…
Thomas Anderson
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