On Fri, Oct 26, 2018 at 3:22 PM Ben <[email protected]> wrote:
> For video codec H.264 there are two parameters: > > Framerate (e.g. 25 or 30 or 29,97) > > and > > keyframe interval (I guess measured in seconds after the last keyframe > .e.g 50 or 200): > > What are the corresponding cmdline parameters for ffmpeg? > > How can I tell ffmpeg to use the same values as the input? > FFmpeg will use the same framerate as the input stream, unless the user overrides it, using `-r` or `fps` or a few other filters Usually there is no point in mimicking the source keyframe placement. The encoder will place keyframes as is optimal. But if you insist, add `-force_key_frames source`. You can also force a fixed keyframe interval using `-g N` where N is measured in frames (not seconds). Gyan _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
