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Refers to the "container" that that data is stored in and how that data is encoded.
192 questions
57
votes
4
answers
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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 ...
- 695
20
votes
6
answers
16k
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 ...
- 741
16
votes
3
answers
25k
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 ...
- 263
9
votes
3
answers
15k
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
2
answers
646
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, ...
- 193
9
votes
1
answer
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 ...
- 723
9
votes
2
answers
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 ...
- 286
6
votes
1
answer
151
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 ...
- 307
5
votes
1
answer
374
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 ...
- 153
5
votes
5
answers
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 ...
- 151
4
votes
1
answer
53k
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 ...
- 165
4
votes
3
answers
11k
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 ...
- 145
4
votes
1
answer
4k
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 ...
- 153
4
votes
2
answers
30k
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 ...
- 195
4
votes
1
answer
6k
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, ...
- 537