Questions tagged [video-encoding]
Specific issues with encoding video to a certain format, also related to [video-conversion]
415 questions
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FFMPEG 2 pass vs single pass output seems to be idential. Is my 2 pass command missing something?
I'm trying to use 2 passes when encoding a file since I have a target bit rate and 2 passes should produce a better result in this case.
For context I'm running these commands via cmd on windows 11. ...
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FFmpeg batch processing - Is it possible to read properties from each input file, and then use those values as parameters on a per-file basis?
My specific case is that I want to batch render video files targetting a specific filesize, without having to manually input a bitrate for each file. I want FFmpeg to read the video duration from the ...
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How do you encode multiple audio tracks so that they play simultaneously with FFmpeg?
I want to import two different audio tracks and have them play at the same time in the output file. I do not want separate audio tracks on the file.
How do I write the encoding script so that the ...
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What is the default GOP for HEVC with FFmpeg?
When no group of pictures is specified during encoding, what GOP does HEVC default to? And, are the values different between libx265, hevc_nvenc, and other codecs?
If so, which GOP does HEVC default ...
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Why does HandBrake fail to detect videos during batch scan (“No valid source or titles found”)?
I’m trying to use HandBrake’s “Batch Scan” feature to add multiple video folders at once, but it consistently returns “No valid source or titles found.” I’ve verified:
Files are in supported formats (...
- 121
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340
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What might be the encoding of this GW192A thermal imaging USB cam?
I have a GW192A thermal camera that connects to mobile phones through OTG USB and provides the image through a proprietary mobile app. I'm trying to make a custom app to interface this camera.
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concat ffmpeg filter outputs wrong timebase, xfade cannot be used
I'm trying to join several videos (removed for testing purposes) and images using xfade. In some cases, I don't want to use any transition, so instead of using xfade filter I'm using concat filter.
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How do I configure QVBR in ffmpeg?
I failed to find any documentation or examples on how to use QVBR.
I'm trying to use it with hevc_vaapi, according to web searches QVBR is supposed to be better than CQP, almost on par with CRF even; ...
- 2,166
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Param0 values for Spline
When setting scaler parameters in ffmpeg, different variants of the scaling filters can be called using the param0 flag.
I know the param0 values for lanczos (3 equals lanczos3, 4 equals lanczos4, and ...
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How to properly tag “color_range” in FFmpeg?
I have DV video files that, when remuxed into a MOV directly (no transcoding), display as clipped in DaVinci Resolve. However, when I manually set “Clip Attributes -> Data Levels” to “Full,” the ...
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Encoding a video to AV1 for compression
I wrote a code to encode a 1080p video to AV1 codec to reduce the file size. At the same time, I encoded the same video to x265. As they say, AV1 should reduce the size around 40-50% more than x265. ...
- 1,116
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How to Record High-Quality 4K Upscale Video from Flourish Studio Bar Chart Race?
I have a YouTube channel where I create bar chart race videos using the Flourish Studio website.
Here is an example of a bar chart race I made on Flourish Studio:
https://flo.uri.sh/visualisation/...
- 155
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How to add a source tag to a video? [closed]
Is there a setting in FFmpeg that would allow me to set the source tag of a video so I can keep track of the videos I have (or have not) encoded in the past? Maybe add text to current tag and/or ...
- 161
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How to harmonize the audio of multiple video segments concatenated via ffmpeg
After several searches I was unable to find the exact problem explained therefore I am now posting this.
I am trying to "remix" a 90 minutes long video using ffmpeg.
From a linear ...
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Extracting frames from videos using ffmpeg, unpredictable behaviour
I am using this ffmpeg command to generate a bunch of images captures from a video:
ffmpegCommand([
"-i",
inputPath,
"-vf",
`select='not(mod(n,${frame_interval}))'...
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