chapters¶Watch on youtube.com
To set chapters to your video, prepare FFMETADATA file like this:
;FFMETADATA1 [CHAPTER] ; TIMEBASE=1/1: start/end times are considered to be seconds. TIMEBASE=1/1 START=0 END=30 ; Metadata keys or values containing special characters ; ('=’, ';’, '#’, '\’ and a newline) must be escaped with a backslash '\'. title=example \#1 [CHAPTER] ; TIMEBASE=1/1000: start/end times are considered to be milliseconds. TIMEBASE=1/1000 START=30000 END=60000 title=example \#2 [CHAPTER] TIMEBASE=1/1 START=60 END=90 title=example \#3 [CHAPTER] TIMEBASE=1/1 START=90 END=120 title=example \#4 [CHAPTER] TIMEBASE=1/1 START=120 END=150 title=example \#5 [CHAPTER] TIMEBASE=1/1 START=150 END=180 title=example \#6 [CHAPTER] TIMEBASE=1/1 START=180 END=210 title=example \#7 [CHAPTER] TIMEBASE=1/1 START=210 END=240 title=example \#8
[me@host: Videos]$ ffmpeg -y -i input.mp4 -i chaps.txt -map_metadata 1 -c copy output.mp4
(In this example, the index of
input.mp4 is 0, and of
chaps.txt is 1, so you have to specify 1 to
Some players such as MPC-HC (Media Player Classic - Home Cinema) can deal with the chapters, and when you use MPC-HC, you can jump next chapter by PGUP, and previous by PGDN.
Chapters are embedded in the uploaded video. However, unfortunately, Youtube doesn’t seem to have a special interface for this. As such, it is up to the player to decide whether a chapter is useful. That is, chapters are not well suited for distribution videos. However, I personally think that it is particularly useful for editing tasks that involve combining multiple videos.
- see also
remove all chapters¶
Editing a video containing chapters, such as cutting it with -to or -ss, may produce strange videos. Clearing all chapters is easy:
[me@host: Videos]$ ffmpeg -y -i input.mp4 -c copy -map_chapters -1 output.mp4