Summary of the bug: How to reproduce: ffmpeg -i 2024-04-25_18-33-07.mkv -vcodec dnxhd -profile:v dnxhr_lb -vf scale=-1:540 tmp.mov ffmpeg version 7.0-full_build-www.gyan.dev Copyri...
More practical example of "-sws_flags": "full_chroma_inp" hardly makes sense. See also: https://trac.ffmpeg.org/wiki/colorspace#Hintaboutfull_chroma_inp (diff )
Optimize 1 linking. (diff )
Fix preview. (diff )
1 missing example. (diff )
Optimize image delivery. (diff )
Clarification. (diff )
Optimized intro. Everything "swscale" related. (diff )
Hint. Minor. (diff )
͏ E.g. ("-lavfi" vs. "-vf") ͏ ffmpeg -v debug -hide_banner -nostdin -nostats -i "W020170309545700291313.jpg" -lavfi "scale=iw/2:-2" -sws_flags gauss+accurate_rnd+print_info -compre...
"testing" -> "image comparison". (diff )
Reduce 1 unnecessary hyperlinking. (diff )
Hint To-do. (diff )
Warn about Unicode special characters. (diff )
There's no practical difference between YUV and YCbCr: sort of more like "RGB" and "BGR". (diff )
fixed: Fixed in c3ca90a92e7211aef8ad1d044518a34f6ba137d7 . Thanks to you two.
Hint about "full_chroma_inp. (diff )
Optimize commands display of Examples. (diff )
Disable direct embedding of the images: hardly visible differences here (and significant bandwidth killer: ~ 18 MiB). (diff )
While the WebVTT spec denotes that the hour field is optional on timestamps whose duration is less than one hour, it would be helpful to be able to forcibly include the field, even if the va...
Early release: "color_primaries". Complete rewrite planned later. (diff )
Summary of the bug: Transcoding video to x265 results in a few frozen frames in the output video. How to reproduce: Download the input video: https://github.com/yurigorokhov/ffmpeg_bug/ra...
fixed
Summary of the bug: If resampler is invoked at the start of the filtergraph to upsample, an error will be thrown at the very end despite the output file being successfully written. Assertion be...
worksforme: Can't reproduce; works with git master.
͏ ffmpeg -y -nostdin -nostats -v debug -f lavfi -i "color=#ff0000:1x1; color=#0000ff:1x1; vstack,split; vflip,hstack" -vframes 1 -compression_level 10 -pred none "0.png" ͏ ffmpeg -y...
fixed: Fixed in 7f3e38bda8c39308dea9d9eb023f4cbe7ed2c671 .
Setup: Windows 7 x64, FFMPEG g08781ebe1-2024-04-29 x64 Source: song.dsf https://fastupload.io/en/8hp1Dg1K3KNY3Zc/file Command: ffmpeg -i song.dsf -af "volume=6dB,aresample=96000:resample...
For example make a local gradient over normalized height 0.2 starting at 0.5, which will be used to transition between 2 input videos. E.G. the inputs could be Big Buck Bunny variations, the fir...
Here are the steps to reproduce from scratch: Generate video with the PC color range: ffmpeg -f lavfi -i mandelbrot=end_pts=50:size=1920x1080 -pix_fmt yuv420p10le -vf scale=out_range=pc -t 5...
Summary of the bug: How to reproduce: % ffmpeg -i "fail.mkv" -y -pix_fmt yuv420p10le -c:V libsvtav1 -dolbyvision 1 "av1_fail.mkv" libsvtav1 Cmake flags -DCMAKE_BUILD_TYPE...
Summary of the bug: When trying to use a filter graph with a crop & scale filter, where I update the crop values every frame, the filter stops providing frames anymore if the crop size changes...
currently, ffmpeg does not accept expressions for the itsscale parameter $ ffmpeg -itsscale '25/(24000/1001)' -i src.mkv dst.mkv Expected number for itsscale but found: 25/(24000/10...
Created .flac files that ffmpeg refuse to decode, and managed to construct such one inside subset: https://hydrogenaud.io/index.php/topic,125848 Using a noisy signal I could create a CDDA ...
Our c++ application (xlights.org) is now failing with unable to open mp3 files when given a filename with unicode characters. eg. Everybody Want (From “The Hunger Games_ Catching Fire” Soun...
Summary of the bug: If you apply the "sharpen_npp" filter to a 1080p video, the resolution will be output at 1088p (a green bar will appear at the bottom of the video). I tested it with multip...
Summary of the bug: Built ffmpeg-7.0 from source using clang-1500.3.9.4 (XCode 15.3) on macOS Sonoma 14.4.1. The build succeeds but then ffmpeg crashes due to unsatisfied dynamic library load: ...
Summary of the bug: How to reproduce: % ffmpeg -f gdigrab -framerate 30 -i hwnd=984566 test_hwnd.mp4 ffmpeg -version ffmpeg version 7.0-full_build-www.gyan.dev Copyright (c) 2000...
Summary of the bug: using more than one output pipe leads to missing and corrupt output How to reproduce: #!/bin/bash input=video.mkv runtest () { echo echo case ${tc} �...
Summary of the bug: Flagging this as both ffmpeg CLI as well as avfilter, as I am not sure which is the part that is the larger cause of this (ffmpeg CLI's API usage or the internals of avfilt...
Summary of the bug: I'm encountering a problem with the cuCtxDestroy function that seems to be causing my system to freeze and result in a black screen. I'm running Windows 11 on my computer, a...
I would like to request support for Gain Map for HDR images. Ref: https://helpx.adobe.com/camera-raw/using/gain-map.html Ref: https://developer.android.com/media/platform/hdr-image-for...
This filter: -vf 'scale=min(640,iw):trunc(ow/a/2)*2,format=rgba;movie=image.png;scale2ref;overlay=x=0:y=0,format=rgba' Used to work for all frames but in FFmpeg version 7 produces a video of...
I'm using Windows 10 22H2 and I recently encoded a video I recorded on my cell phone using x265 with the following encoding parameters: ... x265.exe --ctu 32 --min-cu-size 16 --tu-intra-d...
ffmpeg.exe -i "5_2-2.1.ac3" -acodec ac3 -ab 384k "5_2-2.1.ac3_.ac3" ffmpeg version n7.0-3-g607fca80b7-20240405 Copyright (c) 2000-2024 the FFmpeg developers Input #0, ac3, from '5_2-2.1.ac3': ...