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Merge branch 'master' of https://github.com/Kees-V/openalpr into Kees-V-master

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This commit is contained in:
Matt Hill
2014-10-26 20:26:29 -04:00
parent 752e9acc6f 77e308904c
commit 782c1e5ef1
1 changed files with 12 additions and 6 deletions
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14
src/video/videobuffer.cpp
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@@ -149,7 +149,10 @@ void imageCollectionThread(void* arg)
// it returns so that the video capture can be recreated. // it returns so that the video capture can be recreated.
void getALPRImages(cv::VideoCapture cap, VideoDispatcher* dispatcher) void getALPRImages(cv::VideoCapture cap, VideoDispatcher* dispatcher)
{ {
cv::Mat frame; cv::Mat frame1;
cv::Mat frame2;
cv::Mat* receiveframe;
bool receiveframeisframe1 = true;
while (dispatcher->active) while (dispatcher->active)
{ {
@@ -159,9 +162,11 @@ void getALPRImages(cv::VideoCapture cap, VideoDispatcher* dispatcher)
bool hasImage = false; bool hasImage = false;
try try
{ {
hasImage = cap.read(frame); if (receiveframeisframe1) receiveframe = &frame1;
else receiveframe = &frame2;
hasImage = cap.read(*receiveframe);
// Double check the image to make sure it's valid. // Double check the image to make sure it's valid.
if (!frame.data || frame.empty()) if (!(*receiveframe).data || (*receiveframe).empty())
{ {
std::stringstream ss; std::stringstream ss;
ss << "Stream " << dispatcher->mjpeg_url << " received invalid frame"; ss << "Stream " << dispatcher->mjpeg_url << " received invalid frame";
@@ -170,8 +175,9 @@ void getALPRImages(cv::VideoCapture cap, VideoDispatcher* dispatcher)
} }
dispatcher->mMutex.lock(); dispatcher->mMutex.lock();
dispatcher->setLatestFrame(&frame); dispatcher->setLatestFrame(receiveframe);
dispatcher->mMutex.unlock(); dispatcher->mMutex.unlock();
receiveframeisframe1 = !receiveframeisframe1;
} }
catch (const std::runtime_error& error) catch (const std::runtime_error& error)
{ {