Peter Robertson: Activity About
Peter Robertson

Mac OS 10.6.8
Member Since:
June 18th 2008
34 Posts
Peter Robertson 7 years ago
I have an ffmeg script that I was able to put together with the generous help of this forum but now it has stopped working.. I now get an error when I run the following:

#!/bin/sh

for (( i=0; i<97; i+=30 ))

do ffmpeg -ss $i -t 10 -acodec copy -vcodec copy -i movie.mp4 index_$i.mov

done

I get the error


./IndexVidBash.sh: line 1: {rtf1ansiansicpg1252cocoartf1187cocoasubrtf390: command not found
./IndexVidBash.sh: line 2: syntax error near unexpected token `}'
./IndexVidBash.sh: line 2: `cocoascreenfonts1{fonttblf0fmodernfcharset0 Courier;f1fnilfcharset0 LucidaGrande;}'

Any suggestions?

Thanks.

Peter
best .mov to mp4 conversion
by Peter Robertson 7 years ago
Does anyone have a good formula for converting a .mov file to and .mp4 at the same size and quality I've tried a number of different ways, too many to list here but none seems to work. I either end up
Re: best .mov to mp4 conversion
by Lou Logan 7 years ago
Peter Robertson " Does anyone have a good formula for converting a .mov file to and .mp4 at the same size and quality mov and mp4 are container formats and can contain various multimedia formats mean
combining video files
by Peter Robertson 7 years ago
I'm trying to combine some video clips. Using: cat index_0.mp4 index_30.mp4 index_60.mp4 ffmpeg -i - -vcodec copy -acodec copy -f mp4 comp.mp4 gives me Output file is empty, nothing was encoded (check
Re: combining video files
by Lou Logan 7 years ago
Chiq Garcia " ffmpeg -i concat:"file1 file2 file3" -c:v copy -c:a copy "combined.mp4" there are other approaches, but i think this one is easy on the eyes. plus, video specs have to be exactly the sa
script error
by Peter Robertson 7 years ago
I was able to make a script a few months ago with the generous help of this forum but now it has stopped working. When I try to run: #! bin sh for (( i=0; i<97; i+=30 )) do ffmpeg -ss $i -t 10 -aco
Re: script error
by Peter Robertson 7 years ago
My bad. The error appears to have been caused by the fact that I was using Text Edit to edit my .sh file--not a good idea. Saving the script with a different editor fixed the problem. FYI--the syntax
vob to prores conversion
by Peter Robertson 7 years ago
I'm trying to use the following: ffmpeg -i origingal.vob -c:v prores -profile:v 3 -c:a pcm_s16le ffmpegconv converted.mov but I am getting the error Unrecognized option 'c:v' I seem to remember having
Re: vob to prores conversion
by chris king 6 years ago
As we know VOB such a kind of video file usually contains one or several audio tracks and subtitle tracks that are multiplexed together into one stream form. It is not the ideal format for editing pur
conversion problem
by Peter Robertson 7 years ago
I have a clip that is about an hour long. It plays fine in the timeline but when I save it as a QuickTime file the audio goes out of sync about a third of the way in. It has done this after 4 attempts
Re: conversion problem
by Peter Robertson 7 years ago
This seems to have fixed the audio sync problem but when I export to a Quicktime movie from FCP my file size is HUGE, and thus gives me some extreme processing times in compressor. My original file th
ffmpeg to set metadata
by Peter Robertson 7 years ago
I use ffmpeg to set metadata on some of my video clips during conversion. Is there a way to set the metadata of a video without sending it to an output. Occasionally I don't want to convert a clip but
Re: ffmpeg to set metadata
by Peter Robertson 7 years ago
THANKS! I feel a little silly--I did not realize I forgot to change the extension of the tmp file from .mov to .mp4. Pedro
Cloud based video editing project
by Kim Gwydir 7 years ago
Hello- Let me preface this with the following - I am not an expert in the video and or programming field but I am project manager for a new feature my company wants to launch. We take video of softbal
Re: Cloud based video editing project
by Peter Robertson 7 years ago
FFMPEG for output conversion will work well in web server (cloud) environment and could also be used to convert to pro res for editing. But as far as an open source video editor that's a tough one. I'
encoder 'aac' not working
by Peter Robertson 7 years ago
What does this error message mean and how to fix it: The encoder 'aac' is experimental but experimental codecs are not enabled, add '-strict -2' if you want to use it. Peter Pedro
Re: Encoder 'aac' not working
by Peter Robertson 7 years ago
very nice! Works great. Thanks for the code. Pedro Pedro
Peter Robertson 7 years ago
I installed and configured ffmpeg but I failed to install libx264. Do I have to uninstall ffmpeg and install libx264 or can I just install libx264 without having to uninstall and re-install ffmpeg?

If so how do I uninstall ffmpeg?

Thanks.

Peter
Peter Robertson 8 years ago
Is it possible to extract say 900 frames every 5 minutes so that the jpegs could then be output to a new (shorter) sequence? I know how to do the second part and i know you can output a certain number of frames per second...

Thanks.

Pedro
snapping button in timeline dissapeared
by Peter Robertson 12 years ago
Help! My snapping button in the timeline has been deleted or disappeared. How can I get it back Thanks. Peter
Re: snapping button in timeline dissapeared
by Peter Robertson 12 years ago
Thanks. That did the trick. PeterPedro
jpg image size
by Tammy Jez 12 years ago
Hi, I have photographs larger than 720 x 640. I'd like to use them as their original size, so that I can zoom up and around without it scaling up more than 100%, but FCP automatically resized them to
Re: jpg image size
by Peter Robertson 12 years ago
I create slide shows from jpegs using FCP and I add motion paths (zoom, pan, etc.) to the jpegs with Motion. When I play the DVD on a flatscreen monitor the jpegs that have motion are 'pixelated' part
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