This bug was filed from the Socorro interface and is report bp-e4fe81ff-eea1-4546-8ab0-1e02e0181012. ============================================================= Top 10 frames of crashing thread: 0 xul.dll mozilla::D3D11DXVA2Manager::CopyToImage dom/media/platforms/wmf/DXVA2Manager.cpp:973 1 xul.dll HRESULT mozilla::WMFVideoMFTManager::CreateD3DVideoFrame dom/media/platforms/wmf/WMFVideoMFTManager.cpp:1044 2 xul.dll mozilla::WMFVideoMFTManager::Output dom/media/platforms/wmf/WMFVideoMFTManager.cpp:1198 3 xul.dll HRESULT mozilla::WMFMediaDataDecoder::ProcessOutput dom/media/platforms/wmf/WMFMediaDataDecoder.cpp:161 4 xul.dll class RefPtr<mozilla::MozPromise<nsTArray<RefPtr<mozilla::MediaData> >, mozilla::MediaResult, 1> > mozilla::WMFMediaDataDecoder::ProcessDecode dom/media/platforms/wmf/WMFMediaDataDecoder.cpp:149 5 xul.dll nsresult mozilla::detail::ProxyRunnable<mozilla::MozPromise<nsTArray<RefPtr<mozilla::MediaData> >, mozilla::MediaResult, 1>, RefPtr<mozilla::MozPromise<nsTArray<RefPtr<mozilla::MediaData> >, mozilla::MediaResult, 1> > xpcom/threads/MozPromise.h:1401 6 xul.dll mozilla::TaskQueue::Runner::Run xpcom/threads/TaskQueue.cpp:235 7 xul.dll nsThreadPool::Run xpcom/threads/nsThreadPool.cpp:242 8 xul.dll nsThread::ProcessNextEvent xpcom/threads/nsThread.cpp:1252 9 xul.dll NS_ProcessNextEvent xpcom/threads/nsThreadUtils.cpp:530 ============================================================= There is 1 crash in nightly 64 with buildid 20181012103207. In analyzing the backtrace, the regression may have been introduced by patch [1] to fix bug 1497294. [1] https://hg.mozilla.org/mozilla-central/rev?node=e62671b3410d

Too bad they didn't provide a URL... I wonder how that can happen (hence the assert)... That would mean that the decoded image was actually shorter than what the H264 SPS indicates (assuming it's h264) I'll add code to handle that.

Why we would need this is unclear however. the destination texture should always be smaller than what comes out of the decoder.

Pushed by jyavenard@mozilla.com: https://hg.mozilla.org/integration/autoland/rev/8bf31628742d Adjust width and height so they are never bigger than source or destination. r=mattwoodrow