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cam: Allow specifying directories in the --file option

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The value of the --file option is the full name of the file to which
captured frames are written. To write files to a specific directory with
the default naming scheme, the "frame-#.bin" name has to appear at the
end of the file name. Simplify usage of the option by allowing --file to
specify a directory only. If the file name ends with a '/', the default
"frame-#.bin" file name is automatically appended.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Laurent Pinchart 2021-07-07 02:59:40 +03:00
parent caa6ffacb2
commit 5082fe7b5b
3 changed files with 11 additions and 3 deletions
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5
src/cam/main.cpp
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@ -118,7 +118,10 @@ int CamApp::parseOptions(int argc, char *argv[])
"capture", ArgumentOptional, "count");
parser.addOption(OptFile, OptionString,
"Write captured frames to disk\n"
"The first '#' character in the file name is expanded to the stream name and frame sequence number.\n"
"If the file name ends with a '/', it sets the directory in which\n"
"to write files, using the default file name. Otherwise it sets the\n"
"full file path and name. The first '#' character in the file name\n"
"is expanded to the stream name and frame sequence number.\n"
"The default file name is 'frame-#.bin'.",
"file", ArgumentOptional, "filename");
parser.addOption(OptStream, &streamKeyValue,