From 7cb0d39016ff8061fe9fc2967870c145a6ffa2ac Mon Sep 17 00:00:00 2001
From: Rachad <rachad@google.com>
Date: Tue, 29 Jul 2014 17:53:53 -0700
Subject: [PATCH] Tunneled Video Playback support

 Added native_window_set_sideband_stream() method to Surface.[h|cpp]
 Added ConfigureVideoTunnelModeParams OMX configuration structure to
 HardwareAPI.h

Bug: 16132368
Change-Id: I28fa1b9dbe858d93e353e0991098cad45c626bd9
---
 include/gui/Surface.h                |  1 +
 include/media/hardware/HardwareAPI.h | 21 +++++++++++++++++++++
 libs/gui/Surface.cpp                 | 10 ++++++++++
 3 files changed, 32 insertions(+)

diff --git a/include/gui/Surface.h b/include/gui/Surface.h
index 35ab7f618..f2cf018a9 100644
--- a/include/gui/Surface.h
+++ b/include/gui/Surface.h
@@ -145,6 +145,7 @@ private:
     int dispatchSetUsage(va_list args);
     int dispatchLock(va_list args);
     int dispatchUnlockAndPost(va_list args);
+    int dispatchSetSidebandStream(va_list args);
 
 protected:
     virtual int dequeueBuffer(ANativeWindowBuffer** buffer, int* fenceFd);
diff --git a/include/media/hardware/HardwareAPI.h b/include/media/hardware/HardwareAPI.h
index 88e7ad33e..90150c63b 100644
--- a/include/media/hardware/HardwareAPI.h
+++ b/include/media/hardware/HardwareAPI.h
@@ -214,6 +214,27 @@ struct DescribeColorFormatParams {
     MediaImage sMediaImage;
 };
 
+// A pointer to this struct is passed to OMX_SetParameter or OMX_GetParameter
+// when the extension index for the
+// 'OMX.google.android.index.configureVideoTunnelMode' extension is  given.
+// If the extension is supported then tunneled playback mode should be supported
+// by the codec. If bTunneled is set to OMX_TRUE then the video decoder should
+// operate in "tunneled" mode and output its decoded frames directly to the
+// sink. In this case nAudioHwSync is the HW SYNC ID of the audio HAL Output
+// stream to sync the video with. If bTunneled is set to OMX_FALSE, "tunneled"
+// mode should be disabled and nAudioHwSync should be ignored.
+// OMX_GetParameter is used to query tunneling configuration. bTunneled should
+// return whether decoder is operating in tunneled mode, and if it is,
+// pSidebandWindow should contain the codec allocated sideband window handle.
+struct ConfigureVideoTunnelModeParams {
+    OMX_U32 nSize;              // IN
+    OMX_VERSIONTYPE nVersion;   // IN
+    OMX_U32 nPortIndex;         // IN
+    OMX_BOOL bTunneled;         // IN/OUT
+    OMX_U32 nAudioHwSync;       // IN
+    OMX_PTR pSidebandWindow;    // OUT
+};
+
 }  // namespace android
 
 extern android::OMXPluginBase *createOMXPlugin();
diff --git a/libs/gui/Surface.cpp b/libs/gui/Surface.cpp
index 86451bee7..b56030e9e 100644
--- a/libs/gui/Surface.cpp
+++ b/libs/gui/Surface.cpp
@@ -24,6 +24,7 @@
 
 #include <utils/Log.h>
 #include <utils/Trace.h>
+#include <utils/NativeHandle.h>
 
 #include <ui/Fence.h>
 
@@ -443,6 +444,9 @@ int Surface::perform(int operation, va_list args)
     case NATIVE_WINDOW_API_DISCONNECT:
         res = dispatchDisconnect(args);
         break;
+    case NATIVE_WINDOW_SET_SIDEBAND_STREAM:
+        res = dispatchSetSidebandStream(args);
+        break;
     default:
         res = NAME_NOT_FOUND;
         break;
@@ -533,6 +537,12 @@ int Surface::dispatchUnlockAndPost(va_list args __attribute__((unused))) {
     return unlockAndPost();
 }
 
+int Surface::dispatchSetSidebandStream(va_list args) {
+    native_handle_t* sH = va_arg(args, native_handle_t*);
+    sp<NativeHandle> sidebandHandle = NativeHandle::create(sH, false);
+    setSidebandStream(sidebandHandle);
+    return OK;
+}
 
 int Surface::connect(int api) {
     ATRACE_CALL();