Opened 7 months ago

#10509 new defect

`select` filter doesn't support `ih` and `iw` constants

Reported by: alexey.rodionov Owned by:
Priority: normal Component: undetermined
Version: unspecified Keywords: filter
Cc: Blocked By:
Blocking: Reproduced by developer: no
Analyzed by developer: no


Running e.g. the following command:

ffmpeg -i input.mp4 -vf select='gt(ih\,1080)',scale=-2:1080 output.mp4

causes the following error:

[Parsed_select_0 @ 00000196cee7f500] [Eval @ 00000087f25fe3d0]
Undefined constant or missing '(' in 'ih,1080)'
[Parsed_select_0 @ 00000196cee7f500] Error while parsing expression
[AVFilterGraph @ 00000196cee7f440] Error initializing filters
Invalid argument

Support for ih and iw constants in the select filter would allow interesting complex one-line filters.

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