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Questions tagged [mp4box]

103 questions
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Generate mpeg-dash live content from transport stream UDP input using ffmpeg/mp4box

I'm receiving mpeg-2 transport stream UDP input. I want to serve this content using an HTTP server. I know that mp4box can be used to grab the udp and dump it in a file. mp4box -grab-ts udp://ip:port dump.ts mp4box can generate mpeg-dash content…
Ishaan Shringi
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Convert mp4 tracks to images WITHOUT ffmpeg

I'm developing an C# tool to extract mp4 frames to images. ( Without using ffmpeg ) I use a tool named ISO Viewer 2.0.2 and i see all my mp4 video frames (145 frames for 5 seconds, each frames is called as sample) in Tracks tab. ISO Viewer 2.0.2…
Giang Nguyễn
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Convert m3u8 (HLS) to mpd (MPEG-DASH)

I have Live stream of HLS [https://82-80-192-30.vidnt.com/ipbc_IPBCchannel11LVMRepeat/definst/IPBCchannel11LVM_3.stream/playlist.m3u8] and I want to convert it to MPEG-DASH. What is the best practice? The stream is already h264 aac therefore I…
Almog
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Shifting audio in MPEG4 content and manipulating atoms

1. Shift audio I use ffmpeg / avconv quite often ... and usually I hate it. Those tools do what they are instructed to do about 30% of the time. I could give you countless examples but I don't want to start flame war, so please help me with my…
LLL
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Live stream multi-bitrate video

Preface I have read this two part tutorial (Part-1 and Part-2) by Steamroot on MPEG-DASH, and below is my understanding (please correct me if I am wrong): The video needs to be encoded into multiple bit-rates using FFmpeg. The encoded videos need…
Rishabh
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GPAC MP4Box ZLIB Error

I've been trying to get MP4Box installed on my CentOS 7 box using the following instructions: ... cd extra_libs cp -r * /usr/local/src/gpac/extra_lib cd .. cd gpac chmod 755 configure ./configure make lib make apps make install lib make install cp…
Mike
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MPEG DASH: playing fragment as soon (and as many times) as it's appended to SourceBuffer

Is it possible to make HTML5 video tag playing fragments as soon and as many times as I append them to SourceBuffer? So that, for example, if I append fragment2 - I would like it to immediately play fragment2 even if there were no fragment1, and if…
vdudouyt
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minimum delay for mpeg-dash stream using ffmpeg

I am trying to stream my video files using MP4Box and ffmpeg and using mpeg-dash, I transcoded my video using this command for video: ffmpeg -i main720.MTS -movflags faststart -vcodec libx264 -r 24 -tune zerolatency -tune fastdecode -bf 0 -slices 0…
evan
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mpeg-dash combine multiple mpd files / dynamically generate mpd file

I continuously record video that is saved as single segment dash files named by the recording timestamp: MP4Box -dash 10000 -profile onDemand -single-file -single-segment -segment-name filename_…
Chris
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MPEG-DASH cannot decrypt mp4 with clearkey

i have an audio-only mp4 file encrypted with MP4Box, with command MP4BOx -crypt drm.xml audio-only.mp4 -out audio-only-enc.mp4 This is drm.xml:
pier92
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Problems with FFMPEG concat and/or MP4BOX

I've been searching for a reliable way to concat a large (>30) number of mp4 files. My methods so far have been trying the MP4BOX concat CLI, and FFMPEG's concat filter (such as ffmpeg -auto_convert 1 -y -f concat -i files.txt -c copy out.mp4).…
user3730954
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How to resolve the issue with Adaptive Bitrate Switching in Mpeg Dash?

I use the following MP4Box command to generate the manifest file(.mpd). The manifest file is common to different video representations. MP4Box -dash 5000 -frag 5000 -fps 25 -frag-rap -rap -bs-switching merge -profile dashavc264:live -mpd-title "Mpeg…
Tom Taylor
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Using subprocess in python with multiple values and same argument

This is my command subprocess.call(["wine","MP4Box.exe","-add",outputdir+"tmp.m4a","-itags",'name=a',"-itags", "artist=b","-itags", "album_artist=c","-itags", "album=d","-itags", "created=2034","-itags", "genre=e","-new", "tmp23.m4a"]) In the…
Karthik M
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MP4Box does not concatenate videos

I have problem with MP4Box, can't concatenate videos in one video. I get out.mp4 file (~103 MB) but omxplayer can not play it. I have 6 very simple .mp4 videos and I want them to merge in one video. Until now, I was able to do that with command,…
Teemo
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Segment duration variation is higher than the +/- 50% allowed by DASH-IF

I am implement a proof of concept page with video player that uses DASH. I am having a difficult time getting the video right and I am not sure whether this is an encoding issue or MP4Box issue. Since I am working on Ubuntu I had to change a few…
Tim Hysniu
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