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fixed memory leak in cap_libv4l.cpp (ticket #1518; thanks to gorgen for the patch)

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This commit is contained in:
Vadim Pisarevsky 2012-01-26 08:37:24 +00:00
parent 951a3d6c7a
commit 403a7ff391
1 changed files with 18 additions and 3 deletions
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17
modules/highgui/src/cap_libv4l.cpp
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@ -821,6 +821,11 @@ static int _capture_V4L2 (CvCaptureCAM_V4L *capture, char *deviceName)
#ifdef USE_TEMP_BUFFER #ifdef USE_TEMP_BUFFER
if (n_buffers == 0) { if (n_buffers == 0) {
if (capture->buffers[MAX_V4L_BUFFERS].start) {
free(capture->buffers[MAX_V4L_BUFFERS].start);
capture->buffers[MAX_V4L_BUFFERS].start = NULL;
}
capture->buffers[MAX_V4L_BUFFERS].start = malloc(buf.length); capture->buffers[MAX_V4L_BUFFERS].start = malloc(buf.length);
capture->buffers[MAX_V4L_BUFFERS].length = buf.length; capture->buffers[MAX_V4L_BUFFERS].length = buf.length;
}; };
@ -1006,6 +1011,10 @@ static CvCaptureCAM_V4L * icvCaptureFromCAM_V4L (int index)
capture->width = DEFAULT_V4L_WIDTH; capture->width = DEFAULT_V4L_WIDTH;
capture->height = DEFAULT_V4L_HEIGHT; capture->height = DEFAULT_V4L_HEIGHT;
#ifdef USE_TEMP_BUFFER
capture->buffers[MAX_V4L_BUFFERS].start = NULL;
#endif
/* Select camera, or rather, V4L video source */ /* Select camera, or rather, V4L video source */
if (index<0) { // Asking for the first device available if (index<0) { // Asking for the first device available
for (; autoindex<MAX_CAMERAS;autoindex++) for (; autoindex<MAX_CAMERAS;autoindex++)
@ -1184,7 +1193,6 @@ static int icvGrabFrameCAM_V4L(CvCaptureCAM_V4L* capture) {
} }
/* preparation is ok */ /* preparation is ok */
capture->FirstCapture = 0; capture->FirstCapture = 0;
} }
@ -1694,6 +1702,13 @@ static void icvCloseCAM_V4L( CvCaptureCAM_V4L* capture ){
if (capture->frame.imageData) if (capture->frame.imageData)
cvFree(&capture->frame.imageData); cvFree(&capture->frame.imageData);
#ifdef USE_TEMP_BUFFER
if (capture->buffers[MAX_V4L_BUFFERS].start) {
free(capture->buffers[MAX_V4L_BUFFERS].start);
capture->buffers[MAX_V4L_BUFFERS].start = NULL;
}
#endif
//v4l2_free_ranges(capture); //v4l2_free_ranges(capture);
//cvFree((void **)capture); //cvFree((void **)capture);
} }