--- a/content/media/webrtc/MediaEngineWebRTCVideo.cpp
+++ b/content/media/webrtc/MediaEngineWebRTCVideo.cpp
@@ -969,16 +969,18 @@ MediaEngineWebRTCVideoSource::OnTakePict
       new GenerateBlobRunnable(mPhotoCallbacks, aData, aLength, aMimeType));
   }
 }
 
 uint32_t
 MediaEngineWebRTCVideoSource::ConvertPixelFormatToFOURCC(int aFormat)
 {
   switch (aFormat) {
+  case HAL_PIXEL_FORMAT_RGBA_8888:
+    return libyuv::FOURCC_BGRA;
   case HAL_PIXEL_FORMAT_YCrCb_420_SP:
     return libyuv::FOURCC_NV21;
   case HAL_PIXEL_FORMAT_YV12:
     return libyuv::FOURCC_YV12;
   default: {
     LOG((" xxxxx Unknown pixel format %d", aFormat));
     MOZ_ASSERT(false, "Unknown pixel format.");
     return libyuv::FOURCC_ANY;