Initial support for a true streaming player for mpeg2 transport streams.

Change-Id: I153eec439d260a5524b21270e16d36940ec3161a

3 files changed, 58 insertions, 5 deletions

diff --git a/include/media/stagefright/foundation/ADebug.h b/include/media/stagefright/foundation/ADebug.h
index 69021d8..eb5e494 100644
--- a/include/media/stagefright/foundation/ADebug.h
+++ b/include/media/stagefright/foundation/ADebug.h
@@ -32,6 +32,7 @@ namespace android {
 #define CHECK(condition)                                \
     LOG_ALWAYS_FATAL_IF(                                \
             !(condition),                               \
+            "%s",                                       \
             __FILE__ ":" LITERAL_TO_STRING(__LINE__)    \
             " CHECK(" #condition ") failed.")
 
@@ -58,10 +59,12 @@ MAKE_COMPARATOR(GT,>)
     do {                                                                \
         AString ___res = Compare_##suffix(x, y);                        \
         if (!___res.empty()) {                                          \
-            LOG_ALWAYS_FATAL(                                           \
-                    __FILE__ ":" LITERAL_TO_STRING(__LINE__)            \
-                    " CHECK_" #suffix "( " #x "," #y ") failed: %s",    \
-                    ___res.c_str());                                    \
+            AString ___full =                                           \
+                __FILE__ ":" LITERAL_TO_STRING(__LINE__)                \
+                    " CHECK_" #suffix "( " #x "," #y ") failed: ";      \
+            ___full.append(___res);                                     \
+                                                                        \
+            LOG_ALWAYS_FATAL("%s", ___full.c_str());                    \
         }                                                               \
     } while (false)
 
diff --git a/include/media/stagefright/foundation/AHierarchicalStateMachine.h b/include/media/stagefright/foundation/AHierarchicalStateMachine.h
new file mode 100644
index 0000000..b5786fb
--- /dev/null
+++ b/include/media/stagefright/foundation/AHierarchicalStateMachine.h
@@ -0,0 +1,49 @@
+#ifndef A_HIERARCHICAL_STATE_MACHINE_H_
+
+#define A_HIERARCHICAL_STATE_MACHINE_H_
+
+#include <media/stagefright/foundation/AHandler.h>
+
+namespace android {
+
+struct AState : public RefBase {
+    AState(const sp<AState> &parentState = NULL);
+
+    sp<AState> parentState();
+
+protected:
+    virtual ~AState();
+
+    virtual void stateEntered();
+    virtual void stateExited();
+
+    virtual bool onMessageReceived(const sp<AMessage> &msg) = 0;
+
+private:
+    friend struct AHierarchicalStateMachine;
+
+    sp<AState> mParentState;
+
+    DISALLOW_EVIL_CONSTRUCTORS(AState);
+};
+
+struct AHierarchicalStateMachine : public AHandler {
+    AHierarchicalStateMachine();
+
+protected:
+    virtual ~AHierarchicalStateMachine();
+
+    virtual void onMessageReceived(const sp<AMessage> &msg);
+
+    // Only to be called in response to a message.
+    void changeState(const sp<AState> &state);
+
+private:
+    sp<AState> mState;
+
+    DISALLOW_EVIL_CONSTRUCTORS(AHierarchicalStateMachine);
+};
+
+}  // namespace android
+
+#endif  // A_HIERARCHICAL_STATE_MACHINE_H_
diff --git a/include/media/stagefright/foundation/AMessage.h b/include/media/stagefright/foundation/AMessage.h
index 2fbdddc..941f6b9 100644
--- a/include/media/stagefright/foundation/AMessage.h
+++ b/include/media/stagefright/foundation/AMessage.h
@@ -40,6 +40,8 @@ struct AMessage : public RefBase {
     void setTarget(ALooper::handler_id target);
     ALooper::handler_id target() const;
 
+    void clear();
+
     void setInt32(const char *name, int32_t value);
     void setInt64(const char *name, int64_t value);
     void setSize(const char *name, size_t value);
@@ -106,7 +108,6 @@ private:
     Item mItems[kMaxNumItems];
     size_t mNumItems;
 
-    void clear();
     Item *allocateItem(const char *name);
     void freeItem(Item *item);
     const Item *findItem(const char *name, Type type) const;