Opened 12 years ago
Closed 8 years ago
#2324 closed defect (fixed)
Duplicate First Frame
| Reported by: | BChap | Owned by: | |
|---|---|---|---|
| Priority: | normal | Component: | avformat |
| Version: | git-master | Keywords: | mov edts |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | yes | |
| Analyzed by developer: | no |
Description
Summary of the bug:
When using ffmpeg to convert an h264 video stream from an mp4 to prores or mjpeg Quicktime, the first frame of video is duplicated in the result.
How to reproduce:
% ffmpeg -i test100.mp4 -c:v prores -an test100_ffmpeg.mov ffmpeg version 1.1.git git revision: faa0068 built on Mar 4 2013 11:40:27
Attachments (1)
Change History (6)
by , 12 years ago
| Attachment: | test100.mp4 added |
|---|
comment:1 by , 12 years ago
| Keywords: | mov added; mp4 removed |
|---|---|
| Resolution: | → duplicate |
| Status: | new → closed |
comment:2 by , 12 years ago
It might help to start answering to people with "Thank you for your time spent to report this issue to us", rather then to just close it, not even mentioning what is it the duplicate of...
comment:3 by , 12 years ago
| Resolution: | duplicate |
|---|---|
| Status: | closed → reopened |
There may actually be an issue, possibly the same as in ticket #2337
comment:4 by , 9 years ago
| Reproduced by developer: | set |
|---|---|
| Status: | reopened → open |
comment:5 by , 8 years ago
| Component: | undetermined → avformat |
|---|---|
| Keywords: | edts added |
| Resolution: | → fixed |
| Status: | open → closed |
Fixed by Sasi Inguva in ca6cae73db207f17a0d5507609de12842d8f0ca3
Note:
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FFmpeg's mov muxer does not support variable frame rate output, it therefore has to duplicate frames to produce a constant frame rate.
Several tickets are open that contain references to this limitation, in any case it is known.