![]() Your best bet (if the length match is crucial) is to just convert the output video again and use -t to cut to the proper length. Squeezes maximum possible quality from the awful GIF format. Share your clips in their full quality, not a bland dithered mess. There are some workarounds (listed in the ticket) but they don't eliminate the issue entirely. gifski - GIF encoder based on libimagequant (pngquant). Gifski makes smooth GIF animations using advanced techniques that work around the GIF formats limitations. "-shortest" argument has a long-standing bug ( ) that is the output video would be longer than your input audio (by quite a few seconds, worse if using -r 1). `-tune stillimage` should also be used for (default) x264 encoder.įfmpeg -loop 1 -r 1 -i image.png -i audio.wav -r 1 -shortest -vf zscale=matrix=709,format=yuv420p -c:v libx264 -tune stillimage output_video.mp4Įven if we ignore all the image/video troubles above, `ffmpeg -loop 1 -i image.png -i sound.mp3 -shortest video.mp4` still doesn't work well. You can set framerate with `-r` to a small number for both input (reading the same image X times per second) and output (since it's a still image, you can get away with very low framerate. However, it has a notorious bug that would cause the color to shift on its own (becomes yellow) if the input is in BGR (all the `.bmp`s). The most famous being good ol' `scale` (based on libswscale). Note: there are some other video filters can do the same. This causes color to shift in playback(255,0,0 would become 255,24,0). If you have ffmpeginstalled, you can run in terminal: ffmpeg -i video.webm frame04d.png and then make the GIF from the frames: gifski -o anim.gif frame. The recommended way is to first export video as PNG frames. Almost all video players (including browsers) would assume BT.709 for anything >=720P. There is no GUI for Windows or Linux (there is one for macOS). This is an issue if your image / output video is in HD resolution. To fix: add `pix_fmt yuv420p`, or chain a `format=yuv420p` vf at the end to your other vf(s).įFMPEG by default uses BT.601 when converting your RGB images into YUV. Which has very limited support (for example, Firefox doesn't support it.) sudo snap install gifski mkdir -p frames ffmpeg -i opengl-rotating-triangle.mp4 -r 15 -vf scale512:-1 -ss 00:00:03 -to 00:00:06 frames/04d.png. Without any `pix_fmt` argument, FFMPEG defaults to 4:4:4 instead of typical 4:2:0. If you want to reduce the video dimensions, add a scaling filter: ffmpeg -i video.mp4 -vf scale400:240 frame04d. Just leave a few notes here if anyone want to use that. ffmpeg -i video.mp4 frame04d.png gifski -o clip.gif frame.png It generates good per-frame palettes, but also combines palettes across frames, achieving even thousands of colors per frame. If you have ffmpeg installed, you can run in terminal: ffmpeg -i video.webm frame04d.png and then make the GIF from the frames: gifski -o anim.gif frame. This seemingly easy task is actually pretty hard to get right with FFMPEG. There is no GUI for Windows or Linux (there is one for macOS ). I just noticed you have one for "Create single-image video with audio".
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