VideoHelp Forum. Remember Me? Download free trial! Results 1 to 4 of 4. I've mashed up the above to make small key frame rich mp4 files. There probably is a more elegant solution of converting from MOD to the final mp4 files but I didn't make much headway there so I've been trying a brute force method of first converting the MOD to AVI then put it back in the original process. I've tried among hours of other things : ffmpeg -i infile. MOD -f avi -r Obviously I'm not gifted things ffmpeg.
As an editorial I'm happy that it could be worth what they are asking its just disingenuous to bait on a 'free' download as frankly all downloads are free but I digress Also my guess is that the avsvc folks have ffmpeg buried in there someplace anyway.
Any suggestions? I'll take a look but I do need something that I can run in batch mode. Similar Threads ffmpeg vs mp4box By leandro in forum Editing. Replies: 7 Last Post: 21st Apr Replies: 8 Last Post: 20th Aug Replies: 7 Last Post: 6th Jun Replies: 4 Last Post: 8th May Having Problems converting h.
Replies: 3 Last Post: 8th May Contact Us VideoHelp Top. All times are GMT The time now is All rights reserved. Latest tool updates. ProgDVB 7. Video Repair Tool 4. VLC media player 3. Plex Media Server 1. Prism Video Converter 6. TS-Doctor 3. Recent DVD Hacks.How to use FFMPEG
Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Anyway, I learned how to create an aac file and then i found out that an aac is not just an m4a file with a different file extension.
In fact, I need to somehow wrap the aac into an m4a container. Ideally I'd be able to simply make a call to the command line. Right now it seems wiser to use MP4Box because it rights the moov atom at the beginning of the file, which is important for streaming and ipod playing. In my case, without the explicit flag to copyit re-encodes the audio for some odd reason.
Just use any mp4-Muxer like Yamb to create an mp4 -file with only the aac audio track in it, then change the file extension to m4a. How are we doing?
Please help us improve Stack Overflow. Take our short survey. Learn more. What is the easiest way to wrap a raw. Asked 11 years, 6 months ago. Active 2 years, 4 months ago.
Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. There is no such an option to specify that. How are we doing? Please help us improve Stack Overflow. Take our short survey. Learn more. Convert isom to mp42 Ask Question. Asked 4 years, 11 months ago. Active 4 years, 3 months ago. Viewed 10k times.
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It only takes a minute to sign up. My system is made up by a server a windows laptopthat capture the scene and stream the acquired video, untill now I tried to use ffmpeg, MP4Box and DashCast obviously without results, and by a client some device that should be able to read the video flow by using a simple html5 page equipped with dash.
At the very beginning, in order to understand how dash works, I tried to stream some "static" video and all work perfectly thanks to this tutorial.
The issues arise when I tried to stream live video and I followed this tutorialbecause ffmpeg failed when it was trying to create. When I try to handle audio and video together the system say that audio channel doesn't contain any stream. Following I list the inserted command:. This last command failed to attach audio stream in the.
So I try only with video using essentially the same options, but when I tried to create the manifest an error of this type "Could not write header for output file 0 incorrect codec parameters?
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At this point I change completely my strategy, so I create a fragmeted version of the live stream and I tried to use MP4Box to create. And finally I used Dashcast and I able to see some frame from my client page, but simply it doesn't work. The last command I inserted is the following:. Actually I played a little with the parameters etc How I can use MP4Box for live purpose with examples because I don't find a sigle example in the whole net? Obviously every suggestions about alternative methods to perform a live stream with some other tool are accepted.
I'm in a similar position to you and I suspect part of the problem is that my CPU can't transcode the stream fast enough, especially when running a player on the same machine. Apparently mp4box can be used to stream live DASH it has a -dash-live option but I haven't managed to get this working yet either.
This link is quite old, but seems to have a working example:. Sign up to join this community.
Open Source Video Processing Tools - MPlayer, FFMpeg, AviSynth, MKVToolnix, MP4Box
The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Dash live streaming Ask Question. Asked 4 years ago. Active 3 years, 4 months ago.This is going to be short and sweet. I learnt this alternative way of wrapping an. And you can do it all right there on your Raspberry Pi. Nice one Matt. Check out the full video here…. I met Matt at the Cambridge Jam last week.
We had a bit of a chat, but not enough. I find Jams a bit hectic particularly when I have three demos and although good for initial meet-ups, perhaps not the best places for lengthy discussion. We must meet again soon and have a proper chat! Ah, missed that! One of my friends said something about MP4s being containers? Je ne sais pas! It takes the stream and puts it in an MP4 container or wrapper — just like your friend said.
Seems to be needed for video editing programs to handle it. A ja, nie wiem duzo wiecej. Ah, Thanks! French and Spanish are my limits! Is the vid 25 FPS? My main video camera is 25 fps. After sudo apt-get install gpac. Not all files can be authenticated but I download anyways. A lot of errors about things I cannot get.
Raspberry pi says MP4Box is not a valid command. How do I convert the.VideoHelp Forum. Remember Me? Download free trial! Results 1 to 4 of 4. I wrote this guide after I sent someone these instructions via email, I figured I might as well post it somewhere to help other people new to this as well, hopefully this guide will help people who have not used MP4Box before.
The formatting on this Forum adds a space here or there, and some times I have had to use a new line to get it to display properly for Command Line instructions. Then click the Extract command button. You should have separate files now for the video and audio, also if selected the subtitles and chapters as well. SRT format. In the following example you can see the areas in red where you can cut and paste the time codes into a previously created template, optionally you can replace the chapter numbers with names as well.
Box - User Interface. Its old but once installed you can replace the pre-installed MP4Box. To do this replace the MP4Box. Typically the MP4Box instruction for each file is placed at the beginning of the file 2.
For each and every file used in the command line, it starts and ends with a speech mark "" 3. Every instruction within each speech mark for that file is separated by a colon : 4. In MP4Box locate and add the following file, select only track one from that file, and set its frame-rate to In MP4Box locate and add the following file, select only track two from that file, set it's listed language as English, add the following data to the file about it's creation.
Create a new file in the following location with the following name from all previous files and instructions. Summary: This takes a video and audio track from a file and creates a new one with those, setting the frame-rate and labeling the audio track as English, then adding data about it's creation Yamb 2.Sample files are available in GPAC's test suite. Just like any XML file, the file must begin with the usual xml header. IsEncrypted : is the flag which indicates the encryption state of the samples in this track.
Default is 1. It should be 0 if track is not encrypted i. When set, this must describe an 8 or 16 byte key. The possible values are:. When not set and the scheme type uses pattern cens, cbcsa value of 9 is assumed for NAL-based tracks and 0 for other tracks. When not set and the scheme type uses pattern cens, cbcsa value of 1 is assumed.
Only used in cbcs mode. The Key element is used to specify key s applying to the parent track. This element must be a child of a CrypTrack Element. The key ID and value must be specified as a 32 bytes hex string, using an improper length will result in an error. At least one key shall be defined. Key selection policy and key rolling are defined by keyRoll attribute.
Such a key should be placed after all other key declarations. In this example, the PSSH block contains:. In this example, metadata is a string used by the DRM client to retrieve decryption key.
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