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Dec
4
comment How to add my logo for the first 30 seconds in a video with ffmpeg?
@iwocan: Sorry, add -shortest (or -t and the desired duration) before the output file name. Otherwise the png will be looped forever.
Dec
4
revised How to add my logo for the first 30 seconds in a video with ffmpeg?
Add -shortest
Dec
4
answered How to add my logo for the first 30 seconds in a video with ffmpeg?
Dec
4
comment Creating a movie from images using ffmpeg but getting only one frame
The second command should work. Are your files named input-00001.png, input-00002.png, etc.? What does the output from ffmpeg say?
Nov
4
comment dividing a video clip by 4 areas
@Saeid87: It's working for me. You can also specify numbers if you know the width and height.
Sep
16
awarded  Enlightened
Sep
16
awarded  Nice Answer
Sep
9
awarded  Nice Answer
Sep
9
comment Converted MP4 not playing in Chrome
MP4 is a container and can contain video and audio using various codecs. In VLC choose Media Information from the menu, click on Codec Details and expand the streams. Verify that the video codec is H.264.
Sep
3
answered How to display uncompressed gray video?
Aug
26
answered Output ffmpeg to certain format
Aug
16
comment dividing a video clip by 4 areas
See the documentation for the full crop syntax. ffmpeg.org/ffmpeg-filters.html#crop
Aug
16
answered dividing a video clip by 4 areas
Aug
15
comment Converting avi to mov (pro res format) using ffmpeg
Looks ok, although normally the frame rate (-r) is specified in the container and you shouldn't need to change it. You shouldn't need to set the number of samples per audio packet either. What is the issue that you are encountering?
Aug
13
comment Put loudness of many video files to the same level
Are you using a program to edit/encode the videos? If so then look for a normalize option (ideally EBU R128 loudness normalization) in that program. If you don't want to re-encode anything, many formats have a way to add a tag that asks the player to adjust the gain by a specified amount.
Aug
12
answered Appending MP4s loses sound from second file
Jul
16
awarded  Yearling
Jul
15
answered FFMPEG image sequence with various durations
Jul
11
comment FFmpeg: image intro
You can use ffprobe to get the dimensions and duration first if you don't already know them. Insert scale=1280x720, before the intro fade-out if you want to scale the intro to those dimensions. If you want to fade to an outro I suggest overlaying the outro over the main video and fade it in, so that you won't need an alpha channel on your main video. Use the duration to compute the time of the fade and its -itsoffset. Or use the concat filter if you don't care about fading and just want a jump cut.
Jul
6
comment Chrome and Safari show the same behavior on OS X
Have you disabled Javascript, Flash, or cookies? Those links work for me if Javascript is on, but do nothing if it is off.