note that if original gif is < 512KB, convert as mp4 is less efficient. Compression ratio typically 10:1, pretty awesome."-movflags +faststart" flags are optimized for online view in browser.yuv420p only support even width/height, so crop filter is required.Format as "yuv420p" for Firefox compatibility, the downside is color becomes less-saturate than original gif.One mp4 file for all platforms, there is no need to encode an extra "webm" movie, which encoding speed is pretty slow.Output mp4 is encoded with h264, support Firefox/Chrome/Safari in Windows, Mac OSX, Android, and iOS. So if you want 10 sec movie with frame rate 30/sec, you make GIF animation that has total 300 frames, then use it. NoteĪdd "-r 30" to specify the frame rate 30 frames/sec. Vf – MP4 videos using H.264 need to have a dimensions that are divisible by 2. We include this option to specify a specific format which has maximum compatibility across all browsers. Pix_fmt – MP4 videos store pixels in different formats. Movflags – This option optimizes the structure of the MP4 file so the browser can load it as quickly as possible. Im using FFmpeg to convert a GIF into an. To convert animation GIF to MP4 by ffmpeg, use the following command ffmpeg -i animated.gif -movflags faststart -pix_fmt yuv420p -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" video.mp4 Summary of the bug: Converting GIF to MP4 using FFmpeg produces a video that doesnt follow the GIF frame timings.
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