experimental support for fragmented mp4 playback in nuplayer

cherry picked from change 170999

Change-Id: I407775f0290154ad4961134839a15c9f296424c0

2 files changed, 33 insertions, 4 deletions

diff --git a/media/libstagefright/foundation/AMessage.cpp b/media/libstagefright/foundation/AMessage.cpp
index 8b01ac6..dc42f91 100644
--- a/media/libstagefright/foundation/AMessage.cpp
+++ b/media/libstagefright/foundation/AMessage.cpp
@@ -25,6 +25,7 @@
 #include "AString.h"
 
 #include <binder/Parcel.h>
+#include <media/stagefright/foundation/hexdump.h>
 
 namespace android {
 
@@ -399,9 +400,20 @@ AString AMessage::debugString(int32_t indent) const {
                         "RefBase *%s = %p", item.mName, item.u.refValue);
                 break;
             case kTypeBuffer:
-                tmp = StringPrintf(
-                        "ABuffer *%s = %p", item.mName, item.u.refValue);
+            {
+                sp<ABuffer> buffer = static_cast<ABuffer *>(item.u.refValue);
+
+                if (buffer != NULL && buffer->size() <= 64) {
+                    tmp = StringPrintf("Buffer %s = {\n", item.mName);
+                    hexdump(buffer->data(), buffer->size(), indent + 4, &tmp);
+                    appendIndent(&tmp, indent + 2);
+                    tmp.append("}");
+                } else {
+                    tmp = StringPrintf(
+                            "Buffer *%s = %p", item.mName, buffer.get());
+                }
                 break;
+            }
             case kTypeMessage:
                 tmp = StringPrintf(
                         "AMessage %s = %s",
diff --git a/media/libstagefright/foundation/hexdump.cpp b/media/libstagefright/foundation/hexdump.cpp
index 16c1ca5..a44d832 100644
--- a/media/libstagefright/foundation/hexdump.cpp
+++ b/media/libstagefright/foundation/hexdump.cpp
@@ -29,13 +29,25 @@
 
 namespace android {
 
-void hexdump(const void *_data, size_t size) {
+static void appendIndent(AString *s, int32_t indent) {
+    static const char kWhitespace[] =
+        "                                        "
+        "                                        ";
+
+    CHECK_LT((size_t)indent, sizeof(kWhitespace));
+
+    s->append(kWhitespace, indent);
+}
+
+void hexdump(const void *_data, size_t size, size_t indent, AString *appendTo) {
     const uint8_t *data = (const uint8_t *)_data;
 
     size_t offset = 0;
     while (offset < size) {
         AString line;
 
+        appendIndent(&line, indent);
+
         char tmp[32];
         sprintf(tmp, "%08lx:  ", (unsigned long)offset);
 
@@ -67,7 +79,12 @@ void hexdump(const void *_data, size_t size) {
             }
         }
 
-        ALOGI("%s", line.c_str());
+        if (appendTo != NULL) {
+            appendTo->append(line);
+            appendTo->append("\n");
+        } else {
+            ALOGI("%s", line.c_str());
+        }
 
         offset += 16;
     }