9/7/2023 0 Comments Ffmpeg map chapters![]() Save a video as GIF, scaling the height to 1000px and setting framerate to 15: ffmpeg -i video.mp4 -vf 'scale= -1: 1000' -r 15 output.gif.Extract the sound from a video and save it as MP3: ffmpeg -i video.mp4 -vn sound.mp3.6min720p.mp4 -i metadata.txt -map_metadata 1 -codec copy. Finally we use FFMPEG to read the video in along with the metadata we created in the previous step ( metadata.txt) to create a brand new outfile file complete with new chapters:įfmpeg -i.This is to ensure no overlapping boundaries. It's worth noting that the START and END times are based on milliseconds in this case so you must multiply seconds * 1000.Īlso the END of a chapter must be one millisecond less than the START of the next. FFMETADATA1 title=Adding Chapters using FFMPEG artist=Terry Butler TIMEBASE=1/1000 # Chapter 1 starts at 00:00 START=0 # Chapter 1 ends at 02:30 (minus 1 millisecond) END=149999 title=Chapter 1 TIMEBASE=1/1000 # Chapter 2 starts at 02:30 START=150000 # Chapter 2 ends at 04:45 (minus 1 millisecond) END=284999 title=Chapter 2 TIMEBASE=1/1000 # Chapter 3 starts at 04:45 START=285000 # Chapter 3 / end of file ends at 06:00 (minus 1 millisecond) END=360000 title=Chapter 3 Next, create a file called metadata.txt and add the following contents to it:.First of all, let's use FFMPEG itself create a 6 minute long test video:įfmpeg -f lavfi -i 360 :s=1280x720:r= 10 6min720p.mp4.Part 2 - How to Add Chapters to a Video using FFMPEG - Part Two - C# Script.Part 1 - How to Add Chapters to a Video using FFMPEG - Part One - The Basics.This is the first post in the series involving the creation of chapters using FFMPEG.
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