Once the Custom Speed window appears on the screen you should drag the Speed slider to the right if you would like to make the motion in a video clip faster, or move the slider to the left to create a slow-motion video. Optionally, you can use the CTRL+R keyboard shortcut to bring up the Custom Speed window. Most digital cameras can record videos 24fps, but if you want to record slow-motion videos, you’ll have to change the frame rate to 120fps or 240fps.įilmora9 offers easy ways to increase or decrease a video’s playback speed during the post-production process and allows you to speed up or slow down each video clip you add to the timeline.Īfter placing a video clip whose playback speed you would like to change on the Filmora9’s timeline, you should right-click on it and select the Speed and Duration option from the menu. As you increase the number of frames a camera takes each second, the motion in the video becomes both slower and smoother. The rate at which camera captures frames determines how slow or fast they are going to be when you play them. >Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=6 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-2 / threads=18 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=0 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc=2pass / mbtree=0 / bitrate=2910 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / pb_ratio=1.30 / aq=1:1.00īeing new to ffmpeg, I'm not sure what the error means or how to correct it.In this tutorial, we are going to show you how to adjust a video clip’s playback speed in Filmora9 and create slow and fast motion videos or add freeze frames to the footage you’re editing.Ĭhanging a Video’s Speed and Duration in Filmora9 >Writing library : libebml v0.7.8 + libmatroska v0.8.1 >Writing application : mkvmerge v2.9.5 ('Tu es le seul') built on >16:28:30 The input file has the following characteristics: mediainfo input.mkv I used this command to convert the file: ffmpeg -i input.mkv -vcodec copy -acodec copy -absf aac_adtstoasc output.m4v Provided invalid, non monotonically increasing dts to muxer in streamĠ: -2 >= -2 av_interleaved_write_frame(): Invalid argument Press ctrl-c to stop encoding Application Stream #0.2(eng): Subtitle: / 0x0000 Output #0, ipod, to 'output.m4v': Metadata: Reached Estimating duration fromīitrate, this may be inaccurate Input #0, matroska,webm, from *** THIS PROGRAM IS DEPRECATED *** This program is only provided for compatibility and will be removed in a future release. When I try converting mkv to mp4 using ffmpeg, the following error occurs: version 0.8.3-4:0.8.3-0ubuntu0.12.04.1, Copyright (c) 2000-2012 the Libav developers built on 16:52:09 with gcc 4.6.3
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