[libcamera-devel] [PATCH v2 8/8] test: v4l2_device: Provide buffer sharing test

Kieran Bingham kieran.bingham at ideasonboard.com
Wed Feb 13 17:23:07 CET 2019


Hi Laurent,

On 13/02/2019 16:01, Laurent Pinchart wrote:
> Hi Kieran,
> 
> Thank you for the patch.
> 
> On Wed, Feb 13, 2019 at 03:10:27PM +0000, Kieran Bingham wrote:
>> Obtain two V4L2Devices and use one to obtain a BufferPool.
>>
>> Propagate the formats from the first to the second device and then commence
>> sending buffers between the two devices in a ping-pong fashion.
>>
>> Signed-off-by: Kieran Bingham <kieran.bingham at ideasonboard.com>
>> ---
>>  test/v4l2_device/buffer_sharing.cpp | 179 ++++++++++++++++++++++++++++
>>  test/v4l2_device/meson.build        |   1 +
>>  2 files changed, 180 insertions(+)
>>  create mode 100644 test/v4l2_device/buffer_sharing.cpp
>>
>> diff --git a/test/v4l2_device/buffer_sharing.cpp b/test/v4l2_device/buffer_sharing.cpp
>> new file mode 100644
>> index 000000000000..f03201e82084
>> --- /dev/null
>> +++ b/test/v4l2_device/buffer_sharing.cpp
>> @@ -0,0 +1,179 @@
>> +/* SPDX-License-Identifier: GPL-2.0-or-later */
>> +/*
>> + * Copyright (C) 2019, Google Inc.
>> + *
>> + * libcamera V4L2 API tests
>> + *
>> + * Validate the function of exporting buffers from a V4L2Device and
>> + * the ability to import them to another V4L2Device instance.
>> + * Ensure that the Buffers can successfully be queued and dequeued
>> + * between both devices.
>> + */
>> +
>> +#include <iostream>
>> +
>> +#include <libcamera/buffer.h>
>> +#include <libcamera/camera_manager.h>
>> +#include <libcamera/event_dispatcher.h>
>> +#include <libcamera/timer.h>
>> +
>> +#include "v4l2_device_test.h"
>> +
>> +#include "log.h"
>> +
>> +LOG_DEFINE_CATEGORY(Test)
> 
> Can you use std::cout until we implement a test logger ?
> 
>> +class BufferSharingTest : public V4L2DeviceTest
>> +{
>> +public:
>> +	BufferSharingTest()
>> +		: output_(nullptr), framesCapture(0), framesOutput(0){};
> 
> 	BufferSharingTest()
> 		: V4L2DeviceTest(), output_(nullptr), framesCapture(0),
> 		  framesOutput(0)
> 	{
> 	}


Checkstyle complains at this change, and prefers to have the {} inline.

--- test/v4l2_device/buffer_sharing.cpp
+++ test/v4l2_device/buffer_sharing.cpp
@@ -23,9 +23,7 @@
 {
 public:
        BufferSharingTest()
-               : output_(nullptr), framesCaptured_(0), framesOutput_(0)
-       {
-       };
+               : output_(nullptr), framesCaptured_(0), framesOutput_(0){};


Would you like to override checkstyle here?

<snip> ...

-- 
Regards
--
Kieran


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