Opened 10 years ago
Closed 10 years ago
#4065 closed defect (duplicate)
support aspect-ratio changes in scale and pad filters
| Reported by: | Mika Raento | Owned by: | |
|---|---|---|---|
| Priority: | normal | Component: | undetermined |
| Version: | unspecified | Keywords: | |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | no |
Description
Currently it's reasonably easy to column (and letter) -box fixed-aspect-ratio input in ffmpeg, by using something like:
ffmpeg -filter_complex '[0:0]scale=iw*sar:ih,scale=-1:432,pad=768:432:(ow-iw)/2:(oh-ih)/2,setdar=16:9[outv]'
However, if the input has aspect-ratio changes (dimensions or sar) mid-stream, the above won't work.
It would be nice to have per-frame -evaluated versions of the variables for scale and pad. (and the required other changes in these filters that assume that they don't change)
Change History (1)
comment:1 by , 10 years ago
| Component: | avfilter → undetermined |
|---|---|
| Resolution: | → duplicate |
| Status: | new → closed |
| Type: | enhancement → defect |
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This sounds like a duplicate of ticket #3631 to me.