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Is there a way to process (for example by using raster calculator or r.null) a multi-band raster?

When I try to use raster calculator in QGIS 2.18.3 on multi-band raster the output is a raster that contains only the first band, and I would like to get a raster with the same number of bands as the input.

I would like to multiple every band by 5. When I use raster calculator the output is a single-band raster (just the first band) multiple by 5. Another thing I'm try to do is to change all "0" value to null for every band. SAGA mosaic tool is able to set null but it doesn't work on multiband raster, and GDAL mosaic doesn't have that option. When I use the "r.null" tool it only sets null values to the first band, which is the output.

It would be great if you can help me using python script.

closed as off-topic by PolyGeo Feb 12 '17 at 20:27

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions seeking help to debug/write/improve code must include the desired behavior, a specific problem or error and the shortest code necessary to reproduce it in the question itself. Providing a clear problem statement and evidence of a code attempt will help others to help you. See: How to create a Minimal, Complete, and Verifiable example." – PolyGeo
If this question can be reworded to fit the rules in the help center, please edit the question.

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    Please, can you edit your question with an example of what you inserted as expression into the raster calculator? – mgri Feb 12 '17 at 12:37