Questions tagged [ffmpeg]
Media tool with support for multiple codecs, filters, and containers. Include your actual command and the complete console output when asking questions involving FFmpeg tools. An easy way to do this is by adding `-report` to your command and pasting the contents of the logfile generated. For help with CLI use only of ff* binaries - ffmpeg, ffprobe, ffplay. For help with API usage, post on Stack Overflow.
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How do I convert a video to GIF using ffmpeg, with reasonable quality?
I'm converting a video to GIF file with ffmpeg:
ffmpeg \
-i input.flv \
-ss 00:00:00.000 \
-pix_fmt rgb24 \
-r 10 \
-s 320x240 \
-t 00:00:10.000 \
output.gif
It works great, but output ...
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votes
3
answers
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Resizing videos with ffmpeg/avconv to fit into static sized player
I have a html 5 video player which is 700px wide, 400px high. I'm trying to use avconv to use ffmpeg to resize (while retaining the aspect ratio) and making sure it fits into my player.
Input can be a ...
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votes
12
answers
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How to get video duration in seconds?
How can I get video duration in seconds?
What I've tried:
ffmpeg -i file.flv 2>&1 | grep "Duration"
Duration: 00:39:43.08, start: 0.040000, bitrate: 386 kb/s
mediainfo file.flv | grep ...
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votes
2
answers
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Create video with 5 images with fadeIn/out effect in ffmpeg
With 5 images I have to create a video of 60 seconds in ffmpeg, each image has to display for 15 seconds. after 15 seconds, first image has to fade out and 2nd image has to fade in, after that 2nd ...
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What is the "sameq" or "same_quant" option in FFmpeg? Does it mean "same quality"?
Often, I've seen FFmpeg commands using the sameq option, for example
ffmpeg -i input.mp4 -sameq output.avi
What does this mean? Does it mean "same quality"? If not, what should I use instead?
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votes
9
answers
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Using ffmpeg to cut up video
I am using ffmpeg to cut out a section of a large file like this:
ffmpeg -i input.wmv -ss 60 -t 60 -acodec copy -vcodec copy output.wmv
The -ss part works fine but the -t is ignored. It correctly ...
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answers
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How can I normalize audio using ffmpeg?
I want the loudest peak sound in a movie clip to be as loud as the codec allows, then have every other sound amplified accordingly.
What's a practical example in order to accomplish this using ffmpeg?...
- 2,251
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votes
4
answers
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Strip metadata from all formats with FFmpeg
How can I remove all metadata from all formats via FFmpeg?
I can just set special metadata for each format per man ffmpeg. Any option or method to clear all metadata and strip media from all metadata ...
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votes
8
answers
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How to merge audio and video file in ffmpeg
I want to merge an audio file (.wav or .au format) with a video file (.mp4 format).
Please suggest me how to achieve this. I want to merge these file to new .mp4 video file. An ffmpeg command would ...
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answers
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How can I remove multiple segments from a video using FFmpeg?
I am trying to delete a few sections of a video using FFmpeg.
For example, imagine if you recorded a show on television and wanted to cut out the commercials. This is simple with a GUI video-editor; ...
- 1,279
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votes
6
answers
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Cut part from video file from start position to end position with FFmpeg [duplicate]
I have a video file of 30 minutes, but I want to extract a video from 00:09:23 to 00:25:33.
I can define the startposition with -ss, but I couldn't find one for the end position. Any help please?
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Meaningful thumbnails for a Video using FFmpeg
FFmpeg can capture images from videos that can be used as thumbnails to represent the video. Most common ways of doing that are captured in the FFmpeg Wiki.
But, I don't want to pick random frames at ...
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How can I rotate a video 180° with FFmpeg?
I have a video that was rotated 180° when recorded. Is it possible to correct this with FFmpeg?
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crossfade between 2 videos using ffmpeg
I've been trying to achieve a crossfade transition between 2 video clips using ffmpeg but have failed so far. I'm new to ffmpeg and am mostly relying on tweaking what I can find in the documentation ...
user342545
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How to get time stamp of closest keyframe before a given timestamp with FFmpeg?
I want a FFmpeg seeking command that fast and accurate. I found this.
The solution is that we apply -ss for both input (fast seeking) and output (accurate seeking). But: If the input seeking is not ...
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