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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2020-12-26 23:45:04 +0200
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2021-03-03 00:59:06 +0200
commit973c12488c772e02ee9f027a49f25052cd991c20 (patch)
treeec5534117a967a66e2f54b96bf315fa9f2fc148f /utils/raspberrypi/ctt
parentbe50270b7dedd596d5cca34ca66dce82fc92fe73 (diff)
libcamera: pipeline: simple: converter: Add multi-stream support
While the M2M device backing the converter doesn't support multiple streams natively, it can be run once per stream to produce multiple outputs from the same input, with different output formats and sizes. To support this, create a class to model a stream and move control of the M2M device to the Stream class. The SimpleConverter class then creates stream instances and iterates over them. Each stream needs its own instance of the V4L2M2MDevice, to support different output configurations. The SimpleConverter class retains a device instance to support the query operations. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Phi-Bang Nguyen <pnguyen@baylibre.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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