0
votes
1answer
39 views

Cut WMV file into segments based on frame numbers and reencode to x264

I've done a bit of work with FFMPEG in my days and I am somewhat familiar with VirtualDub as well as high-end products such as Sony Vegas. However, I still can't figure out a simple and ...
1
vote
1answer
167 views

Video concatenating, with overlay

I have a video recorded from a gopro which is split into 3 parts as the maximum filesize is reached after about 17 minutes and the gopro automatically splits it into multiple parts. I also have a ...
0
votes
1answer
83 views

delayed video overlay using ffmpeg

I am wanting to overlay one video onto another but with a delayed appearance. I have: source1.mp4 which is of duration 20 sec. source2.mp4 which is of duration 5 sec. I want to create a final ...
0
votes
0answers
333 views

FFMPEG fade between images

I need to do cross fade transition between two images and followed this link which works perfect for two images. ffmpeg -loop 1 -i input0.png -loop 1 -i input1.png -filter_complex ...
1
vote
0answers
81 views

Join AVI and WMV into an AVI

I have a WMV files and two AVI files I need to concatenate into one video file as an AVI file. What the quickest and easiest way to do this on OSX?
1
vote
1answer
1k views

ffmpeg - concatenating two MP4 files results in bad output file

I generated two MP4 files - a five-second intro file, which is created by the script below, and the main video (about one minute long) is created by screen-cast-omatic, both in MP4 format. When I ...
0
votes
1answer
150 views

Cropping video to different parts with same bitrate in ffmpeg

I am trying to crop a video clip (originally 960 by 540) in two 4 parts (top-left, top-right, etc..) and I use this command below (with of course corrext x/y positions): ffmpeg -i mov_a.m4v -vf ...
1
vote
0answers
306 views

FFmpeg x264 Encode Settings

My new Canon Vixia HF G30 video camera has an option to encode directly to 35 Mbit/sec Mp4 at 1080p60 and it does a nice job. I primarily use it to record my daughter's high school basketball games. ...
4
votes
3answers
104 views

dividing a video clip by 4 areas

I am working on a program that can playback a video clip in 4 phones. For this I need to supply each phone with a part of the video clip. Lets say I have a 1080p clip and I have 4 phones. Then I want ...
4
votes
1answer
38 views

When encoding a video, is there a way to know the resulting file size in advance?

Is there a way to know how large your resulting file size will be before your video is finished encoding? BTW: I am using Microsoft Expression Encoder.
0
votes
0answers
242 views

Allow multiple instances of Handbrake

Is it possible to run multiple instances of Handbrake on Windows 7 (video encoding application)? I have a 32 thread system and I think it would be more efficient to encode 2-3 movies at the same ...
3
votes
0answers
494 views

Accurate and reliable movie editing with avconv

I'm trying to perform movie editing in an automated way with avconv. It is made in two steps: extract some parts of an input movie: concatenate the parts to form an output movie: I tried some ...
3
votes
0answers
297 views

Ffmpeg sync error, first image showing really fast

I want to converting my images with mp3 to videos... but first slide is showing up really fast. I want to each slide duration 5-7 seconds or so RAW material MP3 Files My list Images FFmpeg ...
2
votes
1answer
2k views

Fix an m4v video that has lagging audio (audio and video out of sync)

Here's a similar question for windows: Tool to fix video that's out of sync with audio? I'm hoping to solve this problem on a Mac. I've tried Handbrake and Avidemux (the latter seems to have an ...
2
votes
1answer
1k views

Convert GTK RecordMyDesktop OGV video for OpenShot editing

I make some screencasts with my laptop. The software that I use in Ubuntu is GTK RecordMyDesktop which gives me an OGV file. The quality is perfect and I am happy with it. For publishing or giving ...
3
votes
1answer
8k views

How to cut at exact frames using ffmpeg?

I'm trying to use ffmpeg to cut video files at precise times. The ffmpeg help shows an option -timecode_frame_start to specify the starting frame but I am unable to get this command to work. The ...
1
vote
2answers
707 views

How can I merge AVI movies at 16:10 aspect ratio and maintain the aspect ratio in the output?

I recorded a bunch of 1680 x 1050 (16:10 aspect ratio) videos, and I want to merge them into a single video. I've been using Windows Live Movie Maker, but this only supports two aspect ratios: 16:9 ...
4
votes
3answers
222 views

Batch-split many AVIs in 2 parts?

how can I batch split many AVIs into 2 parts, with no conversion? NB: this didn't help much What is the best software to split and join avi files?
3
votes
2answers
2k views

ffmpeg to join videos

I previously learned that FFMpeg can join videos: However, I am attempting to join recorded over-the-air broadcasts (.ts files), and I believe that minor hiccups in signal quality are causing FFMpeg ...
1
vote
4answers
1k views

Is there a tool which can resume video conversion?

I'm using Handbrake for converting and resizing my video files, but other users come and close my video conversion process. There is no resume facility in the software. Because of this, I just have ...
-2
votes
3answers
7k views

1080p to 720p converter that converts very fast [closed]

Any ideas about a good 1080p to 720p converter that is able to convert a video of 90 minutes in less than several hours? (maybe like in 2, 3 or 4 hours ;-) The compression of a file is H.264/MPEG-4 ...
1
vote
1answer
266 views

Is there any better idea to reverse a video and save it with and without voice? [closed]

What kind of programming language we have to use for this process or any free softwares are available ?
0
votes
1answer
2k views

Sound out of sync after merging multiple mp4 files with Avidemux

I am trying to join (merge) two or more .mp4 files together, without re-encoding. Here is what I did: Started Avidemux 2.5.5. With File->Open, selected Input1.mp4. I received this message - "H.264 ...
4
votes
1answer
702 views

What tools should I use to edit H.264 MP4 GoPro videos?

I have recorded videos using a GoPro, which produces MP4 files containing H.264 encoded videos. I would like to do some simple editing tasks on these videos without losing quality:- Cut various ...
0
votes
1answer
299 views

Downloading latest stable release of Avidemux?

I would like to try some simple video editing (joining/cutting videos etc.) with Avidemux. Could you please advise what is the latest release (non-beta version), and where to download it? The reason ...
0
votes
2answers
3k views

How can I crop a 16:9 video to 4:3, cutting off the edges?

I've got a 720p video, that contains a picture that's only 4:3, so the edges left and right stay empty/black. I want to cut of the left and right so that video is 4:3. How do I do this in Windows? ...
3
votes
2answers
1k views

What is mencoder's -speed option doing?

I need to change the playback speed of a video, but can't use mencoder to do it. Changing the speed that a video plays at seems like the sort've thing that any video encoding software should be able ...
3
votes
1answer
2k views

change mp4 `ftyp` from `isom` to `mp42`

Will I be able to change the ftyp of an mp4 file? I have two mp4 files and placed it unto media info to see what is the difference. The other mp4 plays on my sansa fuze device while the other does ...
2
votes
1answer
112 views

How can a trimmed avi file be three times larger than the original

I opened up a avi file in virtualdub and trimmed the clip and clicked "Save as avi" and it saved the trimmed clip but it was 3 times the size of the original clip. How can that be?
1
vote
1answer
623 views

Properties!Details (run-time length)

When you take clips and turn them into computer playable files, whether .TS or .MOV or .MPG, .MP4, .VOB, etc., do you as the producer actually manually write into some field in a "Details" section of ...