I'm not trying to edit the subtitle, so no, it doesn't really help me. I want to know if the player must use the Clock Timestamps or Frame Timestamps to know when to display the subtitle.
Le ven. 4 avr. 2025 à 14:10, Mark Filipak <markfilipak.tr...@gmail.com> a écrit : > On 04/04/2025 10.16, jeremie bergeron wrote: > > Hi, > > > > This is not strictly an FFmpeg question but rather a general video > > processing question regarding when subtitles should be rendered. > > > > In this discussion, we are debating whether subtitles should be displayed > > based on *clock timestamps* or *frame timestamps (PTS)*. > > Let's say I have a video with those timestamps: > > > > - > > > > Frame 0: 0 ms > > - > > > > Frame 1: 42 ms > > - > > > > Frame 2: 83 ms > > ... continues > > > Frame 9: 375 ms > > ... continues > > > Frame 20: 834 ms > > > Now, let's consider a subtitle that starts at *400 ms* and ends at *860 > ms*. > > Subtitle Edit (https://www.nikse.dk/subtitleedit) has a tool called > "Beautify time codes". The tool > snaps subtitle times to the elapsed-time equivalents of frame PTSes. So > your 0:0.400..0:0.860 > subtitle would snap to 0:0.375..0:0.834. > > Hope this helps. > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
