50
votes
1answer
60k views

How can I crop a video with ffmpeg?

I have an MP4 file of a screen recording that I need to crop down. How can I accomplish this without using expensive tools like Adobe Premier or Final Cut? I prefer ffmpeg because I have used it ...
41
votes
11answers
2k views

Good open source Video Editors?

Sure, I could Google and find random software. But I rather have the opinion of users that have had hands-on with any open source video editors. So if you've used one that you like or know of any, ...
27
votes
7answers
4k views

Create a DIY Green Screen / Chroma Key

What are some good resources for people attempting to setup their own green/blue screen, light, record and pull a quality key from it? Particularly on a low budget, or with materials that aren't ...
21
votes
3answers
17k views

Repeat/loop Input Video with ffmpeg?

I just want to loop a mp4 video with ffmpeg and keep the current settings and codec. For example if input.mp4 is 0:10 long, and I would want to loop it 4 times so output.mp4 is 0:40 long, how could I ...
20
votes
4answers
4k views

What factors are important for DSLR lenses for shooting video?

I'm about to upgrade my DSLR camera from a Canon XSi (450D) to either a Canon 7D or T3i (600D). I'm largely interested in the video features of the camera. I have several mid/high-end lenses that I ...
17
votes
6answers
1k views

Are there any mathematical advantages for higher sampling rates?

Given that most people can't hear so many frequencies above 20kHz anyways, I've never understood the exact arguments for using sampling rates above 48kHz. At 48kHz, I understand that it is easier to ...
17
votes
4answers
2k views

Why do weathermen and amateurs use green screens when professional movie makers use blue screens?

I've seen a lot of "low budget" green screen setups. However, when I watch things about professional filmmaking, it seems everyone is using blue screens instead. (e.g. I've seen Industrial Light and ...
16
votes
2answers
8k views

How does YouTube encode my uploads and what codec should I use to upload?

Related to What codecs/formats are appropriate for full motion video recording for youtube? I'm wondering exactly how I can expect Youtube to handle my videos. I know they have a rather zealous ...
14
votes
1answer
330 views

What is this strange second camera?

I don't know is this is the correct place to ask this but ... I've watched several "making of" of current movies and noticed a thing i cannot explain. What is this strange "secondary" camera you ...
13
votes
1answer
384 views

Why filmmaking with DSLR?

Adding video feature to digital camera was for their popular applications, as unprofessional users wanted to have both photography and videography at the same time. Professional cameras were ...
13
votes
4answers
1k views

What Beginner Video Editing Software Should I Use?

I need to edit a HD video file. I will need to zoom, pan and insert text. Also, I will need to insert small video clips into the main file (eg. zoom to a black TV screen and insert video to that TV ...
12
votes
5answers
12k views

Render srt subtitles to video?

I have subtitles in .srt file format, and I need to render them on top of video file (prefereably mp4). I have tried handbrake and mediacoder so far, with no luck. What should I do?
12
votes
5answers
810 views

Does version control have a part in the video production workflow?

I'm a software developer and I'm also interested in photography (for four years) and video production (for a few months only). ■ In software development, there is an important rule every developer ...
11
votes
6answers
8k views

How do I turn audio into video (that is, show the waveforms in a video)?

I have to create a video. Part of it involves "showing" a radio interview. Rather than just having a black screen and listening to the audio, I'd like to have a varying waveform on the screen and a ...
11
votes
4answers
26k views

How to losslessly encode a jpg image sequence to a video in ffmpeg?

I have a large set of jpgs that I want to convert to a video losslessly (or, at the very least, very close to losslessly as long as the encoding time isn't much higher than otherwise). Naively, I ...
11
votes
4answers
15k views

Stabilizing GoPro videos

When I watched videos on GoPro's youtube profile, they seem to me almost perfectly stable. And when I attached my action cam to helmet and tried to record during skiing, the video was very shaky. I ...
11
votes
4answers
17k views

How can I convert .MTS file (AVCHD) to .mp4 by ffmpeg without re-encoding H264 video stream?

Note: I posted same question to stackoverflow a short time before, when I have not found this comunity yet. I repost this since the question is more suitable to this community. 1. What I tried I ...
10
votes
2answers
1k views

What's the difference between an Engineer and a Producer?

People seem to be making a point of the distinction of the role of Engineer and Producer. What's the difference?
10
votes
2answers
3k views

How can I stitch together several m2ts video files into one large file?

I have recorded several community theater productions with a Panasonic TM900 camera. The settings on the camera were to record at 1080p @ 60 FPS. However, I noticed that the camera produces several ...
10
votes
5answers
348 views

About film making techniques

I have developed a big interest in film making recently (I hope it isn't a fad). I am interested more in the technical side like cinematography, editing, lighting etc than acting, direction etc. I am ...
10
votes
3answers
8k views

Convert a 60 fps video to a 24 (film) video - is it possible?

This may not be as simple a problem as it may seem at first, so read carefully. When I set my (Canon 60D, but this doesn't really matter at all) camera to record at 24 fps (I think it's actually ...
9
votes
1answer
24k views

How do I change frame size, preserving width (using ffmpeg)?

I'm new to this StackExchange site, and to using the ffmpeg encoder. I have a video that is 720x480 (3:2) that I would like to change to 720x406 (16:9) to match the other videos I have for a site. I ...
9
votes
4answers
8k views

How to get FFMPEG to join non-sequential image files? (skip by 3s)

I have a bunch of images, that follow this pattern. 0001.png 0004.png 0007.png 0010.png 0013.png 0016.png 0019.png ... They're in the correct order, but FFMPEG ignores anything after the first ...
9
votes
4answers
7k views

Why does the color red always appear pixelated on TV and videos on the PC?

I hope this isn't off-topic. While technically about video production, it's not about a problem I am having. Have you ever noticed on TV how the color red is always noticeably pixelated? It's the ...
9
votes
4answers
814 views

How do I get a totally white background without the subject being too bright?

I would like to do a product demonstration similar to the White Room's demonstrations done by Apple, such as iPad 2 Product Demonstration What type of lighting is used to keep the whites extremely ...
8
votes
1answer
12k views

High quality ogv files - possible?

I'm converting mov (or flv or mp4) files into ogv. Unfortunately, the programs I've been using (Miro, FFMPEG's ogv plugin) have terrible encoding that appears extremely fuzzy. Does anyone have ...
8
votes
4answers
464 views

What are some good accessories for a DSLR video recording setup?

I have a DSLR that I've started using for video recording and I'd like to buy some accessories for shooting video. I know this could be subjective, but it doesn't have to be. I am looking for ...
8
votes
4answers
8k views

Correcting exposure flickering in time-lapse footage (in After Effects)

I have made some time-lapse footage of a flower blooming. It was taken inside, at night, with constant lighting. The pictures are great, but as footage, the exposure between frames is slightly ...
8
votes
2answers
323 views

how can I smoothly move a camera without a dolly?

I have a small camera and this is the first time I'm filming anything that is serious. I'm wonder if there is a cheap way I can smoothly shoot footage in a room while moving without a camera dolly.
8
votes
1answer
3k views

Can I use FFMPEG in a commercial product [closed]

Not sure if I am correct posting my question here and I will of course delete this question if appropriate. I have a c# desktop app using FFMPEG I have a web service using FFMPEG. I sell both ...
8
votes
2answers
6k views

The ProRes of Premiere Pro?

I'm going to be editing more and more DSLR videos, most notably music videos for my band as we start releasing singles and want to know if there is an intermediate format for both cutting and ...
8
votes
2answers
989 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
0answers
1k views

Copying h.264 video from TS into MP4 changes frame rate and time

I have large MPEG-TS file that I am converting to MP4 using the below command. If I seek to the same time in the video in both the MP4 and the TS file, the MP4 will be a few frames behind the TS ...
7
votes
9answers
160 views

Places to look for sound tracks for videos

I'm wondering what's a good place to look for background music for our video productions. I'm not asking for a free one, but for any good place with a good categorization of soundtracks and songs for ...
7
votes
4answers
880 views

What is the difference between an amateur and a professional camcorder?

It is known that professional photographers use SLRs & regular users use point & shoot camera. What kind of cameras do professional videographers use & whats the difference?
7
votes
6answers
6k views

Screen refresh rate above 100 Hz noticeable?

Is a refresh rate higher than 100 Hz still noticeable for the human eye? Tv manufacturers are still taking these refresh rates to new heights, but is there really a noticeable difference between a ...
7
votes
3answers
10k views

Encode settings for HTML5 background video

I want to create a website with a HTML5 video background. I have a short 1080p mp4 clip that I want to use (20s). I intend to run the video in a letterbox format (5:2 ish), full screen behind the ...
7
votes
6answers
8k views

Adding a time stamp to a video

Anyone know of a program that will add a visible date and time stamp to a video file? Preferably, I can just put in the start time of the video and it will just keep incrementing the time as the video ...
7
votes
2answers
250 views

How much is a good framerate for slo-mo recording?

As per the title, how much fps count should I be considering on a camera if I am looking to do slo-mo shots without framerate lag taking effect on video settings? On a side note, I don't know if this ...
7
votes
2answers
3k views

MP4 / h.264 patent issues?

I know this is not a legal forum but I'm assuming this is a daily issue for most people on this site since h.264 video (AVC / MPEG4 part10) is so ubiquitous (and there is a legal tag here). I've read ...
7
votes
3answers
19k views

How can I use FFmpeg to lower the quality of H264 video but keep it in H264 format?

I'm a complete noob to video editing, so forgive me if I ask for something ridiculous. I'm getting video clips from a set top recorder box. The clips are AVI files: Resolution: 1920 x 1080 Frames ...
7
votes
2answers
2k views

Is there any format for videos like RAW format for photos?

Like the RAW format for photos which stores the exact image information that is of great use for post processing, are there any similar formats for video?
7
votes
3answers
272 views

I'm not happy with Final Cut Pro (X). What are my options?

I'm a editor who has been editing with Final Cut Pro for the last couple of years and I'm not impressed with the new Final Cut Pro X. I'm interested in looking for another NLE, such as Avid or ...
7
votes
3answers
1k views

Do video formats support colour profiles?

Recently, I was reading a wiki, dedicated to one popular cartoon show and stumbled upon an interesting problem: From left to right: frames from the US iTunes, Australian iTunes and US iTunes version ...
7
votes
3answers
39k views

What sequence presets I must use with a GoPro and Adobe Premiere Pro CS 5.5?

I use a GoPro which output is mp4 files. I want to edit these movies into Adobe Premiere Pro CS 5.5. I'm a little lost about sequence presets to use. I've got the choice between Digital SLR, AVCHD, ...
7
votes
2answers
289 views

Why doesn't an FFT pitch filter fully 'mute' the selected pitch range?

While editing a song, I tried to cut out the bass drum by applying a high-pass FFT filter, i.e. filtering out the low pitch of the bass drum. This resulted in the drum sound being severely quieted, ...
7
votes
3answers
3k views

Cheap solution for shooting with multiple (>2) cameras in sync (genlock or LANC?)

I'm doing research into natural phenomena in computer vision, and I'm looking for a method of shooting video from multiple camera angles. It's likely that the subject will move very erratically, ...
7
votes
1answer
433 views

Color correction workflow

I completed my first short film in December. One of the most time consuming aspects of the project was making the colors look nice. I used Adobe Premiere Pro CS5.5 and the free Magic Bullet plugin. I ...
7
votes
2answers
1k views

Matching a camera in a 3D scene based on a photo

I have a Sketchup scene with a 3D model and a geolocation, but I also have a photo for the scene. How cam I match/create a virtual camera in the 3D application to match the viewpoint of the physical ...
7
votes
3answers
238 views

Are there any good video editing apps for photographers?

Photo editing apps like Lightroom have very intuitive ways (my opinion, of course) of performing operations on pictures. I occasionally do small video projects that I edit either in Sony Vegas on ...

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