generic-library/webrtc
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

webrtc crashes with virtual cameras on Windows.

Browse Source 
In the market, there are several Virtual Camera apps which could allow multi-apps share one camera at same time. We have several reports that at least two of them would cause Webrtc crash because of 0 maxFPS read from their drivers. Finally I can reproduce and verify with one of them, 'Asus Virtual Camera' as in feedback. So I submit the fix as we discussed before.

BUG = Issue 464 & 675
TEST = ViE_Win_Test with virtual camera app installed
Review URL: https://webrtc-codereview.appspot.com/698005

git-svn-id: http://webrtc.googlecode.com/svn/trunk@2526 4adac7df-926f-26a2-2b94-8c16560cd09d
This commit is contained in:
braveyao@webrtc.org 2012-07-25 03:02:15 +00:00
parent f5a91fdfab
commit ad69ca73d4
2 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/modules/video_capture/main/source/Windows/sink_filter_windows.cc
View File

@ -75,7 +75,9 @@ CaptureInputPin::GetMediaType (IN int iPosition, OUT CMediaType * pmt)
pvi->bmiHeader.biPlanes = 1;
pvi->bmiHeader.biClrImportant = 0;
pvi->bmiHeader.biClrUsed = 0;
if (_requestedCapability.maxFPS != 0) {
pvi->AvgTimePerFrame = 10000000/_requestedCapability.maxFPS;
}
SetRectEmpty(&(pvi->rcSource)); // we want the whole image area rendered.
SetRectEmpty(&(pvi->rcTarget)); // no particular destination rectangle

3
src/modules/video_capture/main/source/Windows/video_capture_windows.cc
View File

@ -229,6 +229,9 @@ WebRtc_Word32 VideoCaptureDS::SetCameraOutput(
if (capability.maxFPS > requestedCapability.maxFPS)
{
capability.maxFPS = requestedCapability.maxFPS;
} else if (capability.maxFPS <= 0)
{
capability.maxFPS = 30;
}
// Store the new expected capture delay
_captureDelay = capability.expectedCaptureDelay;