/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2020, Google Inc.
*
* thumbnailer.h - Simple image thumbnailer
*/
#pragma once
#include <libcamera/framebuffer.h>
#include <libcamera/geometry.h>
#include "libcamera/internal/formats.h"
class Thumbnailer
{
public:
Thumbnailer();
void configure(const libcamera::Size &sourceSize,
libcamera::PixelFormat pixelFormat);
void createThumbnail(const libcamera::FrameBuffer &source,
const libcamera::Size &targetSize,
std::vector<unsigned char> *dest);
const libcamera::PixelFormat &pixelFormat() const { return pixelFormat_; }
private:
libcamera::PixelFormat pixelFormat_;
libcamera::Size sourceSize_;
bool valid_;
};
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<td class='lines'><pre><code><span class="hl com">/* SPDX-License-Identifier: GPL-2.0-or-later */</span>
<span class="hl com">/*</span>
<span class="hl com"> * Copyright (C) 2019, Google Inc.</span>
<span class="hl com"> *</span>
<span class="hl com"> * libcamera V4L2 API tests</span>
<span class="hl com"> *</span>
<span class="hl com"> * Validate the function of exporting buffers from a V4L2VideoDevice and</span>
<span class="hl com"> * the ability to import them to another V4L2VideoDevice instance.</span>
<span class="hl com"> * Ensure that the Buffers can successfully be queued and dequeued</span>
<span class="hl com"> * between both devices.</span>
<span class="hl com"> */</span>
<span class="hl ppc">#include <iostream></span>
<span class="hl ppc">#include <libcamera/buffer.h></span>
<span class="hl ppc">#include <libcamera/event_dispatcher.h></span>
<span class="hl ppc">#include <libcamera/timer.h></span>
<span class="hl ppc">#include</span> <span class="hl pps">"libcamera/internal/thread.h"</span><span class="hl ppc"></span>
<span class="hl ppc">#include</span> <span class="hl pps">"v4l2_videodevice_test.h"</span><span class="hl ppc"></span>
<span class="hl kwc">class</span> BufferSharingTest <span class="hl opt">:</span> <span class="hl kwc">public</span> V4L2VideoDeviceTest
<span class="hl opt">{</span>
<span class="hl kwc">public</span><span class="hl opt">:</span>
<span class="hl kwd">BufferSharingTest</span><span class="hl opt">()</span>
<span class="hl opt">:</span> <span class="hl kwd">V4L2VideoDeviceTest</span><span class="hl opt">(</span><span class="hl str">"vivid"</span><span class="hl opt">,</span> <span class="hl str">"vivid-000-vid-cap"</span><span class="hl opt">),</span>
<span class="hl kwd">output_</span><span class="hl opt">(</span><span class="hl kwc">nullptr</span><span class="hl opt">),</span> <span class="hl kwd">framesCaptured_</span><span class="hl opt">(</span><span class="hl num">0</span><span class="hl opt">),</span> <span class="hl kwd">framesOutput_</span><span class="hl opt">(</span><span class="hl num">0</span><span class="hl opt">) {}</span>
<span class="hl kwc">protected</span><span class="hl opt">:</span>
<span class="hl kwb">int</span> <span class="hl kwd">init</span><span class="hl opt">()</span>
<span class="hl opt">{</span>
<span class="hl kwb">int</span> ret <span class="hl opt">=</span> <span class="hl kwc">V4L2VideoDeviceTest</span><span class="hl opt">::</span><span class="hl kwd">init</span><span class="hl opt">();</span>
<span class="hl kwa">if</span> <span class="hl opt">(</span>ret<span class="hl opt">)</span>
<span class="hl kwa">return</span> ret<span class="hl opt">;</span>
<span class="hl com">/* media_ already represents VIVID */</span>
MediaEntity <span class="hl opt">*</span>entity <span class="hl opt">=</span> media_<span class="hl opt">-></span><span class="hl kwd">getEntityByName</span><span class="hl opt">(</span><span class="hl str">"vivid-000-vid-out"</span><span class="hl opt">);</span>
<span class="hl kwa">if</span> <span class="hl opt">(!</span>entity<span class="hl opt">)</span>
<span class="hl kwa">return</span> TestSkip<span class="hl opt">;</span>
output_ <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">V4L2VideoDevice</span><span class="hl opt">(</span>entity<span class="hl opt">);</span>
<span class="hl kwa">if</span> <span class="hl opt">(!</span>output_<span class="hl opt">) {</span>
<span class="hl kwc">std</span><span class="hl opt">::</span>cout <span class="hl opt"><<</span> <span class="hl str">"Failed to create output device"</span> <span class="hl opt"><<</span> <span class="hl kwc">std</span><span class="hl opt">::</span>endl<span class="hl opt">;</span>
<span class="hl kwa">return</span> TestFail<span class="hl opt">;</span>
<span class="hl opt">}</span>
ret <span class="hl opt">=</span> output_<span class="hl opt">-></span><span class="hl kwd">open</span><span class="hl opt">();</span>
<span class="hl kwa">if</span> <span class="hl opt">(</span>ret<span class="hl opt">) {</span>
<span class="hl kwc">std</span><span class="hl opt">::</span>cout <span class="hl opt"><<</span> <span class="hl str">"Failed to open output device"</span> <span class="hl opt"><<</span> <span class="hl kwc">std</span><span class="hl opt">::</span>endl<span class="hl opt">;</span>
<span class="hl kwa">return</span> TestFail<span class="hl opt">;</span>
<span class="hl opt">}</span>
V4L2DeviceFormat format <span class="hl opt">= {};</span>
ret <span class="hl opt">=</span> capture_<span class="hl opt">-></span><span class="hl kwd">getFormat</span><span class="hl opt">(&</span>format<span class="hl opt">);</span>
<span class="hl kwa">if</span> <span class="hl opt">(</span>ret<span class="hl opt">) {</span>
<span class="hl kwc">std</span><span class="hl opt">::</span>cout <span class="hl opt"><<</span> <span class="hl str">"Failed to get capture format"</span> <span class="hl opt"><<</span> <span class="hl kwc">std</span><span class="hl opt">::</span>endl<span class="hl opt">;</span>
<span class="hl kwa">return</span> TestFail<span class="hl opt">;</span>
<span class="hl opt">}</span>
format<span class="hl opt">.</span>size<span class="hl opt">.</span>width <span class="hl opt">=</span> <span class="hl num">320</span><span class="hl opt">;</span>
format<span class="hl opt">.</span>size<span class="hl opt">.</span>height <span class="hl opt">=</span> <span class="hl num">180</span><span class="hl opt">;</span>
ret <span class="hl opt">=</span> capture_<span class="hl opt">-></span><span class="hl kwd">setFormat</span><span class="hl opt">(&</span>format<span class="hl opt">);</span>
<span class="hl kwa">if</span> <span class="hl opt">(</span>ret<span class="hl opt">) {</span>
<span class="hl kwc">std</span><span class="hl opt">::</span>cout <span class="hl opt"><<</span> <span class="hl str">"Failed to set capture format"</span> <span class="hl opt"><<</span> <span class="hl kwc">std</span><span class="hl opt">::</span>endl<span class="hl opt">;</span>
<span class="hl kwa">return</span> TestFail<span class="hl opt">;</span>
<span class="hl opt">}</span>
ret <span class="hl opt">=</span> output_<span class="hl opt">-></span><span class="hl kwd">setFormat</span><span class="hl opt">(&</span>format<span class="hl opt">);</span>
<span class="hl kwa">if</span> <span class="hl opt">(</span>ret<span class="hl opt">) {</span>
<span class="hl kwc">std</span><span class="hl opt">::</span>cout <span class="hl opt"><<</span> <span class="hl str">"Failed to set output format"</span> <span class="hl opt"><<</span> <span class="hl kwc">std</span><span class="hl opt">::</span>endl<span class="hl opt">;</span>
<span class="hl kwa">return</span> TestFail<span class="hl opt">;</span>
<span class="hl opt">}</span>
ret <span class="hl opt">=</span> capture_<span class="hl opt">-></span><span class="hl kwd">allocateBuffers</span><span class="hl opt">(</span>bufferCount<span class="hl opt">, &</span>buffers_<span class="hl opt">);</span>
<span class="hl kwa">if</span> <span class="hl opt">(</span>ret <span class="hl opt"><</span> <span class="hl num">0</span><span class="hl opt">) {</span>
<span class="hl kwc">std</span><span class="hl opt">::</span>cout <span class="hl opt"><<</span> <span class="hl str">"Failed to allocate buffers"</span> <span class="hl opt"><<</span> <span class="hl kwc">std</span><span class="hl opt">::</span>endl<span class="hl opt">;</span>
<span class="hl kwa">return</span> TestFail<span class="hl opt">;</span>
<span class="hl opt">}</span>
ret <span class="hl opt">=</span> output_<span class="hl opt">-></span><span class="hl kwd">importBuffers</span><span class="hl opt">(</span>bufferCount<span class="hl opt">);</span>
<span class="hl kwa">if</span> <span class="hl opt">(</span>ret <span class="hl opt"><</span> <span class="hl num">0</span><span class="hl opt">) {</span>
<span class="hl kwc">std</span><span class="hl opt">::</span>cout <span class="hl opt"><<</span> <span class="hl str">"Failed to import buffers"</span> <span class="hl opt"><<</span> <span class="hl kwc">std</span><span class="hl opt">::</span>endl<span class="hl opt">;</span>
<span class="hl kwa">return</span> TestFail<span class="hl opt">;</span>
<span class="hl opt">}</span>
<span class="hl kwa">return</span> <span class="hl num">0</span><span class="hl opt">;</span>
<span class="hl opt">}</span>
<span class="hl kwb">void</span> <span class="hl kwd">captureBufferReady</span><span class="hl opt">(</span>FrameBuffer <span class="hl opt">*</span>buffer<span class="hl opt">)</span>
<span class="hl opt">{</span>
<span class="hl kwb">const</span> FrameMetadata <span class="hl opt">&</span>metadata <span class="hl opt">=</span> buffer<span class="hl opt">-></span><span class="hl kwd">metadata</span><span class="hl opt">();</span>
<span class="hl kwc">std</span><span class="hl opt">::</span>cout <span class="hl opt"><<</span> <span class="hl str">"Received capture buffer"</span> <span class="hl opt"><<</span> <span class="hl kwc">std</span><span class="hl opt">::</span>endl<span class="hl opt">;</span>
<span class="hl kwa">if</span> <span class="hl opt">(</span>metadata<span class="hl opt">.</span>status <span class="hl opt">!=</span> <span class="hl kwc">FrameMetadata</span><span class="hl opt">::</span>FrameSuccess<span class="hl opt">)</span>
<span class="hl kwa">return</span><span class="hl opt">;</span>
output_<span class="hl opt">-></span><span class="hl kwd">queueBuffer</span><span class="hl opt">(</span>buffer<span class="hl opt">);</span>
framesCaptured_<span class="hl opt">++;</span>
<span class="hl opt">}</span>
<span class="hl kwb">void</span> <span class="hl kwd">outputBufferReady</span><span class="hl opt">(</span>FrameBuffer <span class="hl opt">*</span>buffer<span class="hl opt">)</span>
<span class="hl opt">{</span>
<span class="hl kwb">const</span> FrameMetadata <span class="hl opt">&</span>metadata <span class="hl opt">=</span> buffer<span class="hl opt">-></span><span class="hl kwd">metadata</span><span class="hl opt">();</span>
<span class="hl kwc">std</span><span class="hl opt">::</span>cout <span class="hl opt"><<</span> <span class="hl str">"Received output buffer"</span> <span class="hl opt"><<</span> <span class="hl kwc">std</span><span class="hl opt">::</span>endl<span class="hl opt">;</span>
<span class="hl kwa">if</span> <span class="hl opt">(</span>metadata<span class="hl opt">.</span>status <span class="hl opt">!=</span> <span class="hl kwc">FrameMetadata</span><span class="hl opt">::</span>FrameSuccess<span class="hl opt">)</span>
<span class="hl kwa">return</span><span class="hl opt">;</span>
capture_<span class="hl opt">-></span><span class="hl kwd">queueBuffer</span><span class="hl opt">(</span>buffer<span class="hl opt">);</span>
framesOutput_<span class="hl opt">++;</span>
<span class="hl opt">}</span>
<span class="hl kwb">int</span> <span class="hl kwd">run</span><span class="hl opt">()</span>
<span class="hl opt">{</span>
EventDispatcher <span class="hl opt">*</span>dispatcher <span class="hl opt">=</span> <span class="hl kwc">Thread</span><span class="hl opt">::</span><span class="hl kwd">current</span><span class="hl opt">()-></span><span class="hl kwd">eventDispatcher</span><span class="hl opt">();</span>
Timer timeout<span class="hl opt">;</span>
<span class="hl kwb">int</span> ret<span class="hl opt">;</span>
capture_<span class="hl opt">-></span>bufferReady<span class="hl opt">.</span><span class="hl kwd">connect</span><span class="hl opt">(</span><span class="hl kwa">this</span><span class="hl opt">, &</span><span class="hl kwc">BufferSharingTest</span><span class="hl opt">::</span>captureBufferReady<span class="hl opt">);</span>
output_<span class="hl opt">-></span>bufferReady<span class="hl opt">.</span><span class="hl kwd">connect</span><span class="hl opt">(</span><span class="hl kwa">this</span><span class="hl opt">, &</span><span class="hl kwc">BufferSharingTest</span><span class="hl opt">::</span>outputBufferReady<span class="hl opt">);</span>
<span class="hl kwa">for</span> <span class="hl opt">(</span><span class="hl kwb">const</span> <span class="hl kwc">std</span><span class="hl opt">::</span>unique_ptr<span class="hl opt"><</span>FrameBuffer<span class="hl opt">> &</span>buffer <span class="hl opt">:</span> buffers_<span class="hl opt">) {</span>
<span class="hl kwa">if</span> <span class="hl opt">(</span>capture_<span class="hl opt">-></span><span class="hl kwd">queueBuffer</span><span class="hl opt">(</span>buffer<span class="hl opt">.</span><span class="hl kwd">get</span><span class="hl opt">())) {</span>
<span class="hl kwc">std</span><span class="hl opt">::</span>cout <span class="hl opt"><<</span> <span class="hl str">"Failed to queue buffer"</span> <span class="hl opt"><<</span> <span class="hl kwc">std</span><span class="hl opt">::</span>endl<span class="hl opt">;</span>
<span class="hl kwa">return</span> TestFail<span class="hl opt">;</span>
<span class="hl opt">}</span>
<span class="hl opt">}</span>
ret <span class="hl opt">=</span> capture_<span class="hl opt">-></span><span class="hl kwd">streamOn</span><span class="hl opt">();</span>
<span class="hl kwa">if</span> <span class="hl opt">(</span>ret<span class="hl opt">) {</span>
<span class="hl kwc">std</span><span class="hl opt">::</span>cout <span class="hl opt"><<</span> <span class="hl str">"Failed to start streaming on the capture device"</span> <span class="hl opt"><<</span> <span class="hl kwc">std</span><span class="hl opt">::</span>endl<span class="hl opt">;</span>
<span class="hl kwa">return</span> TestFail<span class="hl opt">;</span>
<span class="hl opt">}</span>
ret <span class="hl opt">=</span> output_<span class="hl opt">-></span><span class="hl kwd">streamOn</span><span class="hl opt">();</span>
<span class="hl kwa">if</span> <span class="hl opt">(</span>ret<span class="hl opt">) {</span>
<span class="hl kwc">std</span><span class="hl opt">::</span>cout <span class="hl opt"><<</span> <span class="hl str">"Failed to start streaming on the output device"</span> <span class="hl opt"><<</span> <span class="hl kwc">std</span><span class="hl opt">::</span>endl<span class="hl opt">;</span>
<span class="hl kwa">return</span> TestFail<span class="hl opt">;</span>
<span class="hl opt">}</span>
timeout<span class="hl opt">.</span><span class="hl kwd">start</span><span class="hl opt">(</span><span class="hl num">10000</span><span class="hl opt">);</span>
<span class="hl kwa">while</span> <span class="hl opt">(</span>timeout<span class="hl opt">.</span><span class="hl kwd">isRunning</span><span class="hl opt">()) {</span>
dispatcher<span class="hl opt">-></span><span class="hl kwd">processEvents</span><span class="hl opt">();</span>
<span class="hl kwa">if</span> <span class="hl opt">(</span>framesCaptured_ <span class="hl opt">></span> <span class="hl num">30</span> <span class="hl opt">&&</span> framesOutput_ <span class="hl opt">></span> <span class="hl num">30</span><span class="hl opt">)</span>
<span class="hl kwa">break</span><span class="hl opt">;</span>
<span class="hl opt">}</span>
<span class="hl kwa">if</span> <span class="hl opt">((</span>framesCaptured_ <span class="hl opt"><</span> <span class="hl num">1</span><span class="hl opt">) || (</span>framesOutput_ <span class="hl opt"><</span> <span class="hl num">1</span><span class="hl opt">)) {</span>
<span class="hl kwc">std</span><span class="hl opt">::</span>cout <span class="hl opt"><<</span> <span class="hl str">"Failed to process any frames within timeout."</span> <span class="hl opt"><<</span> <span class="hl kwc">std</span><span class="hl opt">::</span>endl<span class="hl opt">;</span>
<span class="hl kwa">return</span> TestFail<span class="hl opt">;</span>
<span class="hl opt">}</span>
<span class="hl kwa">if</span> <span class="hl opt">((</span>framesCaptured_ <span class="hl opt"><</span> <span class="hl num">30</span><span class="hl opt">) || (</span>framesOutput_ <span class="hl opt"><</span> <span class="hl num">30</span><span class="hl opt">)) {</span>
<span class="hl kwc">std</span><span class="hl opt">::</span>cout <span class="hl opt"><<</span> <span class="hl str">"Failed to process 30 frames within timeout."</span> <span class="hl opt"><<</span> <span class="hl kwc">std</span><span class="hl opt">::</span>endl<span class="hl opt">;</span>
<span class="hl kwa">return</span> TestFail<span class="hl opt">;</span>
<span class="hl opt">}</span>
ret <span class="hl opt">=</span> capture_<span class="hl opt">-></span><span class="hl kwd">streamOff</span><span class="hl opt">();</span>
<span class="hl kwa">if</span> <span class="hl opt">(</span>ret<span class="hl opt">) {</span>
<span class="hl kwc">std</span><span class="hl opt">::</span>cout <span class="hl opt"><<</span> <span class="hl str">"Failed to stop streaming on the capture device"</span> <span class="hl opt"><<</span> <span class="hl kwc">std</span><span class="hl opt">::</span>endl<span class="hl opt">;</span>
<span class="hl kwa">return</span> TestFail<span class="hl opt">;</span>
<span class="hl opt">}</span>
ret <span class="hl opt">=</span> output_<span class="hl opt">-></span><span class="hl kwd">streamOff</span><span class="hl opt">();</span>
<span class="hl kwa">if</span> <span class="hl opt">(</span>ret<span class="hl opt">) {</span>
<span class="hl kwc">std</span><span class="hl opt">::</span>cout <span class="hl opt"><<</span> <span class="hl str">"Failed to stop streaming on the output device"</span> <span class="hl opt"><<</span> <span class="hl kwc">std</span><span class="hl opt">::</span>endl<span class="hl opt">;</span>
<span class="hl kwa">return</span> TestFail<span class="hl opt">;</span>
<span class="hl opt">}</span>
<span class="hl kwa">return</span> TestPass<span class="hl opt">;</span>
<span class="hl opt">}</span>
<span class="hl kwb">void</span> <span class="hl kwd">cleanup</span><span class="hl opt">()</span>
<span class="hl opt">{</span>
<span class="hl kwc">std</span><span class="hl opt">::</span>cout
<span class="hl opt"><<</span> <span class="hl str">"Captured "</span> <span class="hl opt"><<</span> framesCaptured_ <span class="hl opt"><<</span> <span class="hl str">" frames and "</span>
<span class="hl opt"><<</span> <span class="hl str">"output "</span> <span class="hl opt"><<</span> framesOutput_ <span class="hl opt"><<</span> <span class="hl str">" frames"</span>
<span class="hl opt"><<</span> <span class="hl kwc">std</span><span class="hl opt">::</span>endl<span class="hl opt">;</span>
output_<span class="hl opt">-></span><span class="hl kwd">streamOff</span><span class="hl opt">();</span>
output_<span class="hl opt">-></span><span class="hl kwd">releaseBuffers</span><span class="hl opt">();</span>
output_<span class="hl opt">-></span><span class="hl kwd">close</span><span class="hl opt">();</span>
<span class="hl kwa">delete</span> output_<span class="hl opt">;</span>
<span class="hl kwc">V4L2VideoDeviceTest</span><span class="hl opt">::</span><span class="hl kwd">cleanup</span><span class="hl opt">();</span>
<span class="hl opt">}</span>
<span class="hl kwc">private</span><span class="hl opt">:</span>
<span class="hl kwb">const unsigned int</span> bufferCount <span class="hl opt">=</span> <span class="hl num">4</span><span class="hl opt">;</span>
V4L2VideoDevice <span class="hl opt">*</span>output_<span class="hl opt">;</span>
<span class="hl kwb">unsigned int</span> framesCaptured_<span class="hl opt">;</span>
<span class="hl kwb">unsigned int</span> framesOutput_<span class="hl opt">;</span>
<span class="hl opt">};</span>
<span class="hl kwd">TEST_REGISTER</span><span class="hl opt">(</span>BufferSharingTest<span class="hl opt">)</span>
</code></pre></td></tr></table>
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