View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0008279 | ardour | bugs | public | 2020-06-30 23:22 | 2021-03-27 22:38 |
| Reporter | TBL | Assigned To | |||
| Priority | normal | Severity | minor | Reproducibility | always |
| Status | new | Resolution | open | ||
| Platform | Debian GNU | OS | Linux | OS Version | (any) |
| Product Version | 6.0 | ||||
| Summary | 0008279: Duration of exported video with negative video position in timeline wrong | ||||
| Description | The duration flags given to ffmpeg when exporting a video with negative start position leads to premature end of the video. The reason seems to be the wrong usage of the -itsoffset <offset> and -t <duration> parameters for ffmpeg: the total duration of the exported video is truncated at <duration> + <offset> (note the sign of <offset>) Having a negative <offset> value prematurely truncates the resulting video by <offset>. The ffmpeg command line created by ardour would be: /usr/bin/ffmpeg_harvid -itsoffset -20 -i input_video.mp4 -i vtl_mysession.wav [...] -t 150 output.mp4 The result would be a output file where the video stream ends at 130s. | ||||
| Steps To Reproduce | 1. create project with audio 2. mmport video 3. move video to a negative starting position. 4. export video | ||||
| Additional Information | This bug happens with Ardour 6.0.0 and ffmpeg 4.2.3 | ||||
| Tags | 6.0, export, video | ||||
