#9999: Failure to create webm manifest for single key-frame video
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Reporter: jlenart | Type: defect
Status: new | Priority: normal
Component: ffmpeg | Version: unspecified
Keywords: webm | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Summary of the bug:
I have encountered a possible bug in ffmpeg 5.1.2 (also tested on 5.1). In
the event an output video has only a single key-frame, attempting to
generate the DASH manifest will fail, resulting in the error message:
Error parsing Cues
output.webm: Invalid data found when processing input
If multiple key-frames are present, (in the reproduction steps replace -to
5 with -to 6, given an input video longer than 6), the manifest is created
without issue.
How to reproduce:
{{{
$ ffmpeg -y -i <input_video> -c:v libvpx-vp9 -an -to 5 -f webm -dash 1
output.webm
$ ffmpeg -y -f webm_dash_manifest -i output.webm -c copy -map 0 -f
webm_dash_manifest -adaptation_sets "id=0,streams=0" result.mpd
ffmpeg version: 5.1.2 (and 5.1)
libvpx version: 1.12
}}}
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Ticket URL: <https://trac.ffmpeg.org/ticket/9999>
FFmpeg <https://ffmpeg.org>
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