https://bugs.kde.org/show_bug.cgi?id=394087
Bug ID: 394087 Summary: Motion > Speed effect not working on videos without audio track Product: kdenlive Version: 18.04.0 Platform: Other OS: Linux Status: UNCONFIRMED Severity: normal Priority: NOR Component: Effects & Transitions Assignee: vpi...@kde.org Reporter: xav...@saima.info Target Milestone: --- When applying the Speed effect to certain videos, the video preview/render goes totally black. If I re-render the video using kdenlive and I apply the effect on the resulting video it works I've tried 17.12 and 18.04 versions and both are affected. Input video ----------- Input #0, matroska,webm, from 'Screencast_10-05-18_13:00:01.webm': Metadata: encoder : GStreamer matroskamux version 1.14.0 creation_time : 2018-05-10T11:00:03.000000Z Duration: 00:04:17.05, start: 0.019000, bitrate: 65 kb/s Stream #0:0(eng): Video: vp9 (Profile 0), yuv420p(tv), 831x757, SAR 1:1 DAR 831:757, 30 fps, 30 tbr, 1k tbn, 1k tbc (default) Metadata: title : Video Same input video re-rendered with an extra audio track ------------------------------------------------------ Input #0, matroska,webm, from '../Documents/untitled.webm': Metadata: ENCODER : Lavf57.83.100 Duration: 00:05:03.00, start: 0.000000, bitrate: 439 kb/s Stream #0:0: Video: vp8, yuv420p(bt709/unknown/bt709, progressive), 1920x1080, SAR 1:1 DAR 16:9, 1k fps, 25 tbr, 1k tbn, 1k tbc (default) Metadata: DURATION : 00:05:03,003000000 Stream #0:1: Audio: vorbis, 48000 Hz, stereo, fltp (default) Metadata: DURATION : 00:05:02,956000000 -- You are receiving this mail because: You are watching all bug changes.