diff --git a/content/media/encoder/TrackEncoder.cpp b/content/media/encoder/TrackEncoder.cpp
index d22ee7c9ccc..61076e490ff 100644
--- a/content/media/encoder/TrackEncoder.cpp
+++ b/content/media/encoder/TrackEncoder.cpp
@@ -199,14 +199,6 @@ VideoTrackEncoder::NotifyQueuedTrackChanges(MediaStreamGraph* aGraph,
       if (!chunk.IsNull()) {
         gfx::IntSize imgsize = chunk.mFrame.GetImage()->GetSize();
         gfxIntSize intrinsicSize = chunk.mFrame.GetIntrinsicSize();
-#ifdef MOZ_WIDGET_GONK
-        // Block the video frames come from video source.
-        if (chunk.mFrame.GetImage()->GetFormat() != ImageFormat::PLANAR_YCBCR) {
-          LOG("Can't encode this ImageFormat %x", chunk.mFrame.GetImage()->GetFormat());
-          NotifyCancel();
-          break;
-        }
-#endif
         nsresult rv = Init(imgsize.width, imgsize.height,
                            intrinsicSize.width, intrinsicSize.height,
                            aTrackRate);
diff --git a/content/media/omx/OMXCodecWrapper.cpp b/content/media/omx/OMXCodecWrapper.cpp
index aee268e01d7..cc918d3625d 100644
--- a/content/media/omx/OMXCodecWrapper.cpp
+++ b/content/media/omx/OMXCodecWrapper.cpp
@@ -299,9 +299,10 @@ ConvertPlanarYCbCrToNV12(const PlanarYCbCrData* aSource, uint8_t* aDestination)
 
 // Convert pixels in graphic buffer to NV12 format. aSource is the layer image
 // containing source graphic buffer, and aDestination is the destination of
-// conversion. Currently only 2 source format are supported:
+// conversion. Currently 3 source format are supported:
 // - NV21/HAL_PIXEL_FORMAT_YCrCb_420_SP (from camera preview window).
 // - YV12/HAL_PIXEL_FORMAT_YV12 (from video decoder).
+// - QCOM proprietary/HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS (from Flame HW video decoder)
 static void
 ConvertGrallocImageToNV12(GrallocImage* aSource, uint8_t* aDestination)
 {
@@ -309,9 +310,6 @@ ConvertGrallocImageToNV12(GrallocImage* aSource, uint8_t* aDestination)
   sp<GraphicBuffer> graphicBuffer = aSource->GetGraphicBuffer();
 
   int pixelFormat = graphicBuffer->getPixelFormat();
-  // Only support NV21 (from camera) or YV12 (from HW decoder output) for now.
-  NS_ENSURE_TRUE_VOID(pixelFormat == HAL_PIXEL_FORMAT_YCrCb_420_SP ||
-                      pixelFormat == HAL_PIXEL_FORMAT_YV12);
 
   void* imgPtr = nullptr;
   graphicBuffer->lock(GraphicBuffer::USAGE_SW_READ_MASK, &imgPtr);
@@ -353,6 +351,26 @@ ConvertGrallocImageToNV12(GrallocImage* aSource, uint8_t* aDestination)
       yuv.mCbSkip = 0;
       ConvertPlanarYCbCrToNV12(&yuv, aDestination);
       break;
+    // From QCOM video decoder on Flame. See bug 997593.
+    case GrallocImage::HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
+      // Venus formats are doucmented in kernel/include/media/msm_media_info.h:
+      yuv.mYChannel = static_cast<uint8_t*>(imgPtr);
+      yuv.mYSkip = 0;
+      yuv.mYSize.width = graphicBuffer->getWidth();
+      yuv.mYSize.height = graphicBuffer->getHeight();
+      // - Y & UV Width aligned to 128
+      yuv.mYStride = (yuv.mYSize.width + 127) & ~127;
+      yuv.mCbCrSize.width = yuv.mYSize.width / 2;
+      yuv.mCbCrSize.height = yuv.mYSize.height / 2;
+      // - Y height aligned to 32
+      yuv.mCbChannel = yuv.mYChannel + (yuv.mYStride * ((yuv.mYSize.height + 31) & ~31));
+      // Interleaved VU plane.
+      yuv.mCbSkip = 1;
+      yuv.mCrChannel = yuv.mCbChannel + 1;
+      yuv.mCrSkip = 1;
+      yuv.mCbCrStride = yuv.mYStride;
+      ConvertPlanarYCbCrToNV12(&yuv, aDestination);
+      break;
     default:
       NS_ERROR("Unsupported input gralloc image type. Should never be here.");
   }
@@ -369,6 +387,31 @@ OMXVideoEncoder::Encode(const Image* aImage, int aWidth, int aHeight,
   NS_ENSURE_TRUE(aWidth == mWidth && aHeight == mHeight && aTimestamp >= 0,
                  NS_ERROR_INVALID_ARG);
 
+  Image* img = const_cast<Image*>(aImage);
+  ImageFormat format = ImageFormat::PLANAR_YCBCR;
+  if (img) {
+    format = img->GetFormat();
+    gfx::IntSize size = img->GetSize();
+    // Validate input image.
+    NS_ENSURE_TRUE(aWidth == size.width, NS_ERROR_INVALID_ARG);
+    NS_ENSURE_TRUE(aHeight == size.height, NS_ERROR_INVALID_ARG);
+    if (format == ImageFormat::PLANAR_YCBCR) {
+      NS_ENSURE_TRUE(static_cast<PlanarYCbCrImage*>(img)->IsValid(),
+                     NS_ERROR_INVALID_ARG);
+    } else if (format == ImageFormat::GRALLOC_PLANAR_YCBCR) {
+      // Reject unsupported gralloc-ed buffers.
+      int halFormat = static_cast<GrallocImage*>(img)->GetGraphicBuffer()->getPixelFormat();
+      NS_ENSURE_TRUE(halFormat == HAL_PIXEL_FORMAT_YCrCb_420_SP ||
+                     halFormat == HAL_PIXEL_FORMAT_YV12 ||
+                     halFormat == GrallocImage::HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS,
+                     NS_ERROR_INVALID_ARG);
+    } else {
+      // TODO: support RGB to YUV color conversion.
+      NS_ERROR("Unsupported input image type.");
+      return NS_ERROR_INVALID_ARG;
+    }
+  }
+
   status_t result;
 
   // Dequeue an input buffer.
@@ -385,30 +428,20 @@ OMXVideoEncoder::Encode(const Image* aImage, int aWidth, int aHeight,
   // Buffer should be large enough to hold input image data.
   MOZ_ASSERT(dstSize >= yLen + uvLen);
 
-  inBuf->setRange(0, yLen + uvLen);
-
-  if (!aImage) {
+  dstSize = yLen + uvLen;
+  inBuf->setRange(0, dstSize);
+  if (!img) {
     // Generate muted/black image directly in buffer.
-    dstSize = yLen + uvLen;
     // Fill Y plane.
     memset(dst, 0x10, yLen);
     // Fill UV plane.
     memset(dst + yLen, 0x80, uvLen);
   } else {
-    Image* img = const_cast<Image*>(aImage);
-    ImageFormat format = img->GetFormat();
-
-    MOZ_ASSERT(aWidth == img->GetSize().width &&
-               aHeight == img->GetSize().height);
-
     if (format == ImageFormat::GRALLOC_PLANAR_YCBCR) {
       ConvertGrallocImageToNV12(static_cast<GrallocImage*>(img), dst);
     } else if (format == ImageFormat::PLANAR_YCBCR) {
       ConvertPlanarYCbCrToNV12(static_cast<PlanarYCbCrImage*>(img)->GetData(),
-                             dst);
-    } else {
-      // TODO: support RGB to YUV color conversion.
-      NS_ERROR("Unsupported input image type.");
+                               dst);
     }
   }