From 0a15431888e843c81888760052e7446bbd386030 Mon Sep 17 00:00:00 2001
From: Chong Zhang <chz@google.com>
Date: Thu, 19 Feb 2015 16:39:59 -0800
Subject: nuplayer: do not use cached source for wvm content -- DO NOT MERGE

bug: 18730095
Change-Id: Ibd4f54907949daae1d095fa0922050310d16698f
---
 .../nuplayer/GenericSource.cpp                     | 55 +++++++++++++---------
 1 file changed, 32 insertions(+), 23 deletions(-)

diff --git a/media/libmediaplayerservice/nuplayer/GenericSource.cpp b/media/libmediaplayerservice/nuplayer/GenericSource.cpp
index 9b446b8..cbc5e0d 100644
--- a/media/libmediaplayerservice/nuplayer/GenericSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/GenericSource.cpp
@@ -130,23 +130,37 @@ sp<MetaData> NuPlayer::GenericSource::getFileFormatMeta() const {
 
 status_t NuPlayer::GenericSource::initFromDataSource() {
     sp<MediaExtractor> extractor;
+    String8 mimeType;
+    float confidence;
+    sp<AMessage> dummy;
+    bool isWidevineStreaming = false;
 
     CHECK(mDataSource != NULL);
 
     if (mIsWidevine) {
-        String8 mimeType;
-        float confidence;
-        sp<AMessage> dummy;
-        bool success;
-
-        success = SniffWVM(mDataSource, &mimeType, &confidence, &dummy);
-        if (!success
-                || strcasecmp(
+        isWidevineStreaming = SniffWVM(
+                mDataSource, &mimeType, &confidence, &dummy);
+        if (!isWidevineStreaming ||
+                strcasecmp(
                     mimeType.string(), MEDIA_MIMETYPE_CONTAINER_WVM)) {
             ALOGE("unsupported widevine mime: %s", mimeType.string());
             return UNKNOWN_ERROR;
         }
+    } else if (mIsStreaming) {
+        if (mSniffedMIME.empty()) {
+            if (!mDataSource->sniff(&mimeType, &confidence, &dummy)) {
+                return UNKNOWN_ERROR;
+            }
+            mSniffedMIME = mimeType.string();
+        }
+        isWidevineStreaming = !strcasecmp(
+                mSniffedMIME.c_str(), MEDIA_MIMETYPE_CONTAINER_WVM);
+    }
 
+    if (isWidevineStreaming) {
+        // we don't want cached source for widevine streaming.
+        mCachedSource.clear();
+        mDataSource = mHttpSource;
         mWVMExtractor = new WVMExtractor(mDataSource);
         mWVMExtractor->setAdaptiveStreamingMode(true);
         if (mUIDValid) {
@@ -181,14 +195,6 @@ status_t NuPlayer::GenericSource::initFromDataSource() {
             if (mFileMeta->findCString(kKeyMIMEType, &fileMime)
                     && !strncasecmp(fileMime, "video/wvm", 9)) {
                 mIsWidevine = true;
-                if (!mUri.empty()) {
-                  // streaming, but the app forgot to specify widevine:// url
-                  mWVMExtractor = static_cast<WVMExtractor *>(extractor.get());
-                  mWVMExtractor->setAdaptiveStreamingMode(true);
-                  if (mUIDValid) {
-                    mWVMExtractor->setUID(mUID);
-                  }
-                }
             }
         }
     }
@@ -656,10 +662,10 @@ void NuPlayer::GenericSource::sendCacheStats() {
     int32_t kbps = 0;
     status_t err = UNKNOWN_ERROR;
 
-    if (mCachedSource != NULL) {
-        err = mCachedSource->getEstimatedBandwidthKbps(&kbps);
-    } else if (mWVMExtractor != NULL) {
+    if (mWVMExtractor != NULL) {
         err = mWVMExtractor->getEstimatedBandwidthKbps(&kbps);
+    } else if (mCachedSource != NULL) {
+        err = mCachedSource->getEstimatedBandwidthKbps(&kbps);
     }
 
     if (err == OK) {
@@ -681,7 +687,13 @@ void NuPlayer::GenericSource::onPollBuffering() {
     int64_t cachedDurationUs = -1ll;
     ssize_t cachedDataRemaining = -1;
 
-    if (mCachedSource != NULL) {
+    ALOGW_IF(mWVMExtractor != NULL && mCachedSource != NULL,
+            "WVMExtractor and NuCachedSource both present");
+
+    if (mWVMExtractor != NULL) {
+        cachedDurationUs =
+                mWVMExtractor->getCachedDurationUs(&finalStatus);
+    } else if (mCachedSource != NULL) {
         cachedDataRemaining =
                 mCachedSource->approxDataRemaining(&finalStatus);
 
@@ -697,9 +709,6 @@ void NuPlayer::GenericSource::onPollBuffering() {
                 cachedDurationUs = cachedDataRemaining * 8000000ll / bitrate;
             }
         }
-    } else if (mWVMExtractor != NULL) {
-        cachedDurationUs
-            = mWVMExtractor->getCachedDurationUs(&finalStatus);
     }
 
     if (finalStatus != OK) {
-- 
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