Questions tagged [file-formats]

Refers to the "container" that that data is stored in and how that data is encoded.

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38
votes
3answers
71k views

How to downsample 4k to 1080p using ffmpeg while maintaining the quality?

I have some 4K 3840x2160 footage in MP4 format that I need to bring down to 1080p. I tried running ffmpeg -i orig.mp4 -vf scale=1920:1080 smaller.mp4 but the result is very poor quality, with the ...
14
votes
6answers
12k views

Is there a video type for vector animation?

Is there a vector-based video type, preferably open-source, so that an animated clip could be produced using "rules" instead of pixel-compression? This would mean lossless resolution-independent ...
9
votes
3answers
13k views

Corrupt MP4 [recording interrupted]

I was recording an MP4 file using PlaysTV, and my computer had a power fault half-way through the recording. I'm sure that the file contains valid data, it's just that no media player will recognize ...
9
votes
2answers
575 views

How to make sense of video file formats?

In digital video, there are all these different kinds of files: m4v, mov, mkv, mts, mp4, mpeg, and a host of others, and I can't seem to find a clear answer as to what each is good for. (By contrast, ...
9
votes
2answers
2k views

What exactly is AVCHD?

Is it a codec? I don't think so; I believe it uses MPEG4/H.264 for video and AC3 for audio. Is it a container format? Doesn't seem to make a huge amount of sense; there are enough out there already ...
8
votes
1answer
2k views

What codecs/formats are appropriate for full motion video recording for youtube?

I'm recording video game footage via lossless methods, after which I need to compress them and upload them to youtube. I'm not sure which format and/or codecs are best for this. I've been ...
6
votes
1answer
131 views

Motion capture and 3D model formats

I have a light background in CAD and modelling, and I want to use some virtual sets with motion capture. I'm trying to determine what program/platform my next 3D model should use if I want to work ...
5
votes
3answers
6k views

Need help to fix a broken MP4 which lacks a MOOV atom

Please be forgiving to a video file format newbie, who has travelled far and wide all over the Web in search of a relatively simple question and hoped to get an answer (even a fairly complicated one ...
5
votes
5answers
3k views

Is there a method (or tool) to convert video from a SWF container to another more portable format (e.g., H.264)

I have a client who has misplaced the original source video, only has an SWF, and would like to use it in a non-flash environment. Is there any way to do this? So far, I've tried ffmpeg but it's ...
4
votes
1answer
48k views

Big difference in the video file size after the conversion (.mov to .mp4)

After converting from .mov into .mp4, a video file is greatly reduced in size (.mov - 75,2mb .mp4 - 11,9mb) - does this mean that the converted video degraded (loss of color information, or the ...
4
votes
1answer
3k views

How are video and audio streams placed in 'container' files and what interrelations do they have?

So far I have been guessing my way through the types of audio/video streams and getting them mixed up with containers. For example, I have had a friend tell me that a video file which won't play on my ...
4
votes
1answer
147 views

Understanding containers and codecs

To my understanding, there is the container format (MP4, MOV, 3GP, AVI) and the codecs (Theora, VP8, H264, XVid, DivX). For what I understand, the container format and the codecs are independent and ...
4
votes
2answers
3k views

why is a video file with .mts extension so huge?

I just recorded a 2 minute long video clip with my Sony camera. The output is an .MTS file, which is ~450 MB. What is the reason for that? Could you please recommend a (preferably free) app that I ...
4
votes
2answers
5k views

converting to .MJP files

I would like to convert some short videos to .MJP format, and none of my preferred tools for video conversion can do this. Can anybody suggest free software that can achieve this? OSX preferred, but ...
4
votes
2answers
89 views

Best format for audio track with a single/few images

What would be the best (e.g. most compact) format for a "video" that is actually an audio track with a single static image the whole time? (example) And if it was not one static image, but a slow ...
3
votes
2answers
167 views

Adobe Premiere & Final Cut Pro project file standard?

Is there a standard for non-linear video project files? I want to create a slideshow of my life using jpg + mp3 files and want to be able to tweak it many years from now. My fear is that if I use ...
3
votes
2answers
27k views

poor quality export of still images from premiere

This is the actual source image to a video track in Premiere (a PNG): With no resizing whatsoever, and .flv output, this is a resultant frame from the exported video: How could I improve the output ...
3
votes
2answers
291 views

What it means "a royalty free alternative" to video/audio (WebM format)

The WebM format says: WebM is an audiovisual media file format. It is primarily intended to offer a royalty-free alternative to use in the HTML5 video and the HTML5 audio elements. I am not too ...
3
votes
2answers
133 views

Convert .WMV to .MOV

A client gave me a file in Windows Media Video format. I need to edit it in Final Cut Pro X. The problem is that Final Cut Pro X can't read it. Neither can Apple Compressor. It has a Quicktime logo, ...
3
votes
1answer
5k views

What ffmpeg/avconv format and container will Adobe Premiere Pro accept, out-of-box?

All of these converted, but Premiere Pro only loads the audio. I use Ctrl-I to import the videos, and they come up as waveforms, and can only be placed on audio tracks. These examples use avconv, ...
3
votes
1answer
859 views

Which different EDL types exist?

Edit decision lists are integrated in every pipeline nowadays. I've seen different types of it, but wikipedia only knows CMX 3600 EDL and a xml modification. Which other formats exist and what are ...
3
votes
2answers
10k views

exporting .mov vr to multiple still frames

Ive got a quicktime VR in .mov format i need to strip the all still frames (in total there are 250) out of it and have them in as individual images, preferably pngs or jpegs. I was looking at using ...
3
votes
2answers
852 views

jvc recorder .ced file

I recorded some videos using a JVC recorder. Now I am trying to upload those videos to my PC, but the format it .ced. How do I play/convert this file to a different format on my pc?
3
votes
3answers
134 views

Video (or audio, too) format that stores multiple languages in the same file, but only the parts that are different?

DVDs or similar often offer different dubs of the same movie, TV show, etc. on one disk. Storing a whole different video track (and audio track, too) for a movie seems a bit wasteful, given that the ...
3
votes
1answer
344 views

Video fails to play in QT browser plugin. Encoding problem?

I have a video that fails to play in the QuickTime plugin in Internet Explorer on Windows 7, but it plays fine in the standalone QuickTime player. I suspect that this may be an encoding problem, and I ...
3
votes
1answer
469 views

`Format profile` property in MediaInfo

I got two media files: the first is an application window capture, the second is desktop cature. The only difference between them is that one has format profile section with value OpenDML in MediaInfo,...
3
votes
1answer
7k views

Can't import some .mov files into Adobe Premiere, it says "Codec missing or unavailable"

I am trying to import some .mov files into Adobe Premiere project, but I keep getting the following error message "Codec missing or unavailable", this only happen for certain .mov videos which have ...
3
votes
2answers
2k views

How does MKV segment linking work?

I downloaded a file vid1 that is in C:\dir1\ which links to another file vid2 in a subdirectory C:\dir1\dir2\ and it works if I move that file to dir1 (so both files are in dir1). I figure that it'll ...
3
votes
1answer
175 views

How can I see each frame of a mpeg transport stream under windows?

I am looking for a tool, preferably free, that will allow me to see and save each frame from MPEG-2 Transport Stream (video/mp2t).
3
votes
1answer
430 views

What metadata can be stored in a .dv file?

I'd just like to know what information I can expect to extract from a dv file. A lot of file formats have provisions for embedded metadata of all sorts, so my question is what if any data could a .dv ...
2
votes
3answers
374 views

Video Encoding - Wasting Space

I am facing a common issue that I cannot find a term to describe: I have a few low quality VHS rips that were encoded with a certain Apple ProRes codec (irrelevant in the context of this particular ...
2
votes
5answers
677 views

Utility or method for joining MP4 files

I have two MP4 files that I generated with Camtasia Studio. I need to join them together post rendering with Camtasia (it can't be done during the Camtasia rendering process). Looking for a utility or ...
2
votes
3answers
3k views

What is the most basic standard raw video format?

What I mean by the question is, for audio we have the WAV file format which stores a representation of audio where each word stores the intensity of one sample of audio. In addition to this there is a ...
2
votes
2answers
2k views

Difference between 4K Edition and 4K Cineform

On this page I found this here: http://www.timescapes.org/products/ And I don't get it, because 4k Ediition is only 25gb and 4k cinema is 330gb. What is the difference if both are 4K (4096 x 2304) ?...
2
votes
2answers
3k views

Change output using a .jsx script for After Effects CS6

I've made a script that will loop through a (.txt) interchanging elements of a certain composition. Within the script, I add each changed composition to the render queue and output it. How can I ...
2
votes
3answers
3k views

Recreate basic AVCHD from MTS files

My dad has a Sony HXR-NX5E which writes its output to SDHC cards in AVCHD format. Wanting to back up his video and not understanding the AVCHD structure, I originally got him to copy the contents of ...
2
votes
1answer
2k views

What is the difference between VP9 and ​WebM?

The ffmpeg manual states that: libvpx-vp9 is the VP9 video encoder for ​WebM, an open, royalty-free media file format. What is the difference between the VP9 and WebM?
2
votes
2answers
25k views

What is the best universal video format / extension so that it can be viewed on iPad and PCs

So, someone asked me this question today, and I am very curious about the answer. This person wants to put up a video on a website, and wants it to be viewable on both the iPad and on PCs. They don't ...
2
votes
2answers
695 views

Lossless color compression

I need to reduce the file size of an mp4 video. I don't need color information at all but pixel brightness resolution must be preserved. Videos consist of white background with a few (important) black ...
2
votes
3answers
270 views

Is there a video container which is able to handle segments of different video quality (or even size)?

Let's assume I have a video of 10 minutes length. And I want to reduce its size by having some parts in high bitrate, while other less important parts can be low bitrate. For this I'd cut the original ...
2
votes
2answers
251 views

What video formats should I support (as of 2014)?

I run a website that has offered downloadable instructional videos for 7 years. We have traditionally supported both mp4 and wmv formats. I would like to simplify my life by just offering one format ...
2
votes
1answer
51 views

Format to view on iOS and PS3?

I have Apple Compressor and have been trying to determine the correct format for my videos to allow them to play on both the iPad and my PlayStation 3 via a Media Server. Can anyone help me to ...
2
votes
1answer
4k views

WMV vs MP4 Streaming & Download

I work for a company that outputs videos in many formats. We currently stream movies in FLV format, offer downloads in a WMV and MP4 format. However in the interest of saving server space and ...
2
votes
1answer
158 views

Recover mangled VirtualBox-generated WebM video

When being called by the Indian "Microsoft" department I let them join in on my VirtualBox virtual machine, and started a video capture to catch any details on them. Doing so, VirtualBox creates ....
2
votes
1answer
48 views

How should I understand audio levels in FCP7 xml?

I'm a software developer working on an application which takes a Final Cut Pro 7 xml file as input, and reads the audio in that XML file (for reporting purposes). For any given <clipitem> ...
2
votes
1answer
237 views

Ways to open a corrupted .avi?

I recorded some game footage using MSI afterburner and accidentally closed afterburner before stopping the recording and now I can't open the resulting file. MPC, VLC, Sony Vegas can't open it. MPC ...
2
votes
1answer
11k views

What is the size of 1 minute video at 1920 x 1080 (60 fps)?

I would like to know what is the size in MB for 1 minute video captured in the following format: 1920 x 1080 (60 fps) AVCHD and 1920 x 1080 (60 fps) MPEG-4 with peak data rate of 24Mbit/sec How ...
2
votes
2answers
2k views

I have a TS file. How do I render it?

(I decided to post this here because it doesn't fit very well into the Gaming category, but it is a gaming question.) I had the idea to try streaming video to Twitch one on computer and to record it ...
2
votes
1answer
6k views

Improving frame/image quality on Handbrake?

I created a .cdr file from a DVD and converted it to an .mp4 with Handbrake. My only issue is Handbrake's default settings create a somewhat grainy picture. The file size went from 1.24Gb to ~100Mb so ...
2
votes
1answer
1k views

Does the M4V file type have direct support for Audio?

I am working with a video vendor who just ripped a dvd and sent me BOTH m4v files AND aac files (audio and video separately),. When I asked him why he did not just send 1 m4v file with the audio and ...