0
votes
1answer
44 views

FFmpeg error when doing first pass of WebM encoding: Unrecognized option 'auto-alt-ref'

I'm using OS X Mavericks (10.9.4) and installed ffmpeg from homebrew. When executing this command (assuming input file exists): ffmpeg -i ololo.wmv -vf scale=500:-1 -auto-alt-ref 1 -lag-in-frames 20 ...
2
votes
1answer
81 views

Automated conversion of .dvdmedia(VOBs) to format Plex can handle on a Mac?

I'm super impressed by Plex, and I'd like to convert all my old dvdmedia files into a format that it can understand. I have quite a few of them (the product of a dvd library being ripped to work with ...
0
votes
0answers
20 views

How can the user-time be so much higher than my real-time when I run ffmpeg on my Mac OS X?

I recently installed ffmpeg on my Macbook Pro, which has 1 processor with 4 cores. I ran a command to convert a video (and timed it), roughly like: time ffmpeg -threads 2 -i blah.mp4 -c:v libx264 ...
0
votes
1answer
28 views

Visual FFMPEG Crop?

Is there a way to get a 'preview' of an ffmepg command to see how the current crop settings would look on an exported video? If not I'll use handbreak as it has a visual preview window when cropping ...
0
votes
3answers
43 views

Let user '_www' execute binary in /usr/local/bin

Total *nix n00b, so I apologize in advance. I installed ffmpeg through homebrew, now I want to call it from a PHP script with shell_exec(), e.g. ffmpeg -v. But nothing is happening. From Terminal it ...
0
votes
0answers
132 views

FFmpeg: Error when copying subtitle-streams using iFFmpeg

First of all: I'm new to this forum and not that much experienced with FFmpeg so I'm using the iFFmpeg GUI for Mac OSX. Also my native language is not English. So here's my problem: I got a MKV input ...
1
vote
1answer
106 views

Hauppauge HD PVR 2 to ffmpeg on OS X

How can I use ffmpeg to capture video and audio from a Hauppauge HD PVR 2 connected to my Mac via USB? I have seen a couple posts here and here about doing this on a Unix machine (not OS X) using ...
0
votes
0answers
100 views

OS X uploads .mp4 as quicktime? Changes metadata

I'm running into a rather peculiar issue uploading .mp4 from any browser on OS X. I'm using ffmpeg to convert files and .mp4's uploaded from OS X are causing issues. First off, the file I'm uploading ...
1
vote
1answer
204 views

Installing ffmpeg through Homebrew with options fails

Trying to install ffmpeg on osx 10.8.5 using homebrew. If I perform a default install without optional stuff it installs just fine. But if I want to add an optional component it fails with the ...
0
votes
0answers
103 views

How does one take an MPEG4/MP3 AVI and re-encapsulate it in MP4?

I've been trying to take an old AVI file I have that has an MPEG4 video with MP3 audio and re-encapsulate it in an MP4 container. The audio was easy enough to figure out (-acodec libfaac), but I don't ...
0
votes
1answer
101 views

How to resolve conflicts when two binaries have the same name

Running OS X (10.9), I have a program called 'HEAD' in /Applications/XAMPP/xamppfiles/bin/, which is related to libwww-perl. The OS also has an unrelated program called 'head' in /usr/bin/ Since the ...
1
vote
1answer
107 views

Get black picture when using frei0r filter with ffmpeg on Mac OS

When trying to add a perspective filter on a video using ffmpeg I get a black picture with sound when the resulting format is MP4. ffmpeg -i 2416593.flv -vf "frei0r=perspective:0.2/0.2:0.8/0.2" ...
3
votes
3answers
2k views

Convert video from .mp4 to .ogg

I am using ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers . I need to convert a file .mp4, to .ogg format. I am on Mac OS X, and I have tried this so far: ffmpeg -i ...
3
votes
1answer
912 views

Using ffmpeg with decimal wildcard

I have a folder with PNG images of the following naming scheme: IMG_0423.png IMG_0424.png ... IMG_0509.png I would like to make an MP4 movie from these images, but I get an error message that ...
1
vote
2answers
2k views

How to batch convert video files on OSX for AppleTV2 / iPhone4?

I'd like to have a solution to batch convert video files to a format suitable for the AppleTV2, iPad2, iPhone4, while at the same time preserving as much quality as possible; I want a single output ...
4
votes
1answer
9k 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 ...
0
votes
1answer
402 views

ffmpeg trimmed video does not support jumping to a time position

After a video is cut, the player (mplayer) cannot jump to a specific time position anymore. Clicking the timeline will usually end the playback. How can this be fixed?
2
votes
1answer
1k views

FFmpeg creates emtpy (black) frames

I have a set of images from a timelapse shot (172 JPG files) that I want to convert into a movie. I tried several parameters with FFmpeg, but all I get is a video with black frames (though it has the ...
2
votes
2answers
519 views

Can't get ffmpeg to use frei0r on OSX (through homebrew)

I am trying to get ffmpeg to use frei0r plugin and although I was able to get frei0r show up in filters list, I get the error: [frei0r @ 0x10331c1c0] Could not find module 'glow' Error initializing ...
9
votes
2answers
7k views

Convert audio file to FLAC with ffmpeg?

can I convert one of this format to compatible 16000.0 Sample Rate FLAC file? kAudioFormatLinearPCM = 'lpcm', kAudioFormatAppleIMA4 = 'ima4', kAudioFormatMPEG4AAC ...
2
votes
2answers
901 views

How can I extract stills from a movie?

I would like to make a flipbook from a movie I made on my Mac. Is there any software that will extract, say 100 representative frames from 2 minutes of motion, or do I need to make screenshots ...
0
votes
0answers
173 views

How to make ffmpeg installer for OS X

I have followed this tutorial to download, compile and install ffmpeg on Mac OS X. This worked fine but I want to make an universal installer from compiled source for all Mac machines. Please help me ...
1
vote
2answers
375 views

Video from Frames at the OS X Command Line or Python?

I am looking for a good way to turn a stack of images into a video on the command line or python. Here is my setup: OS X 10.6 Sequence of images either in png or pdf format. (i.e. 001.png, ...
2
votes
2answers
5k views

How to convert WMV to other formats (such as h.264) using ffmpeg on Mac OS X? [duplicate]

Possible Duplicates: How to convert wmv to mp4? Suggest ffmpeg tweaks for converting from WMV to FLV? I've installed ffmpeg through MacPorts using the following Terminal command: $ sudo ...
7
votes
2answers
8k views

FFmpeg extract clip - stream frame rate differs from container frame rate (x264, aac)

Summary H.264 video seems to have a really high frame rate that requires a scaling factor to the applied to the duration of video that I'm trying to extract (900x lower). Body I'm trying to extract a ...