From b9e63830c69231c53dc23a5e29f5b58a1d9d3668 Mon Sep 17 00:00:00 2001
From: Andreas Huber <andih@google.com>
Date: Tue, 26 Jan 2010 16:20:10 -0800
Subject: Better support for HTTP streaming media content, fixes to the way
 HTTPDataSource streams the data, prefetcher implementation.

related-to-bug: 2295438
---
 include/media/stagefright/CachingDataSource.h | 2 ++
 include/media/stagefright/DataSource.h        | 8 ++++++++
 include/media/stagefright/HTTPDataSource.h    | 6 ++++++
 3 files changed, 16 insertions(+)

(limited to 'include/media')

diff --git a/include/media/stagefright/CachingDataSource.h b/include/media/stagefright/CachingDataSource.h
index b0fc4b2..30b7ad9 100644
--- a/include/media/stagefright/CachingDataSource.h
+++ b/include/media/stagefright/CachingDataSource.h
@@ -33,6 +33,8 @@ public:
 
     virtual ssize_t readAt(off_t offset, void *data, size_t size);
 
+    virtual uint32_t flags();
+
 protected:
     virtual ~CachingDataSource();
 
diff --git a/include/media/stagefright/DataSource.h b/include/media/stagefright/DataSource.h
index f88666a..0c0ace0 100644
--- a/include/media/stagefright/DataSource.h
+++ b/include/media/stagefright/DataSource.h
@@ -31,6 +31,10 @@ class String8;
 
 class DataSource : public RefBase {
 public:
+    enum Flags {
+        kWantsPrefetching = 1,
+    };
+
     static sp<DataSource> CreateFromURI(const char *uri);
 
     DataSource() {}
@@ -45,6 +49,10 @@ public:
     // May return ERROR_UNSUPPORTED.
     virtual status_t getSize(off_t *size);
 
+    virtual uint32_t flags() {
+        return 0;
+    }
+
     ////////////////////////////////////////////////////////////////////////////
 
     bool sniff(String8 *mimeType, float *confidence);
diff --git a/include/media/stagefright/HTTPDataSource.h b/include/media/stagefright/HTTPDataSource.h
index d5dc9e6..3075f1c 100644
--- a/include/media/stagefright/HTTPDataSource.h
+++ b/include/media/stagefright/HTTPDataSource.h
@@ -33,6 +33,10 @@ public:
 
     virtual ssize_t readAt(off_t offset, void *data, size_t size);
 
+    virtual uint32_t flags() {
+        return kWantsPrefetching;
+    }
+
 protected:
     virtual ~HTTPDataSource();
 
@@ -52,6 +56,8 @@ private:
 
     status_t mInitCheck;
 
+    ssize_t sendRangeRequest(size_t offset);
+
     HTTPDataSource(const HTTPDataSource &);
     HTTPDataSource &operator=(const HTTPDataSource &);
 };
-- 
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