libstagefright: Handle unsupported codec metaData

Modification done in StagefrightMetadataRetriver
to handle NULL return for meta data if codec is
unsupported by extractor.

Change-Id: I905cec5ee91b098d99e1935437b562d2d9206381

1 files changed, 11 insertions, 0 deletions

diff --git a/media/libstagefright/StagefrightMetadataRetriever.cpp b/media/libstagefright/StagefrightMetadataRetriever.cpp
index 6c795ac..28f9557 100644
--- a/media/libstagefright/StagefrightMetadataRetriever.cpp
+++ b/media/libstagefright/StagefrightMetadataRetriever.cpp
@@ -455,6 +455,10 @@ VideoFrame *StagefrightMetadataRetriever::getFrameAtTime(
     for (i = 0; i < n; ++i) {
         sp<MetaData> meta = mExtractor->getTrackMetaData(i);
 
+        if (meta == NULL) {
+            continue;
+        }
+
         const char *mime;
         CHECK(meta->findCString(kKeyMIMEType, &mime));
 
@@ -625,6 +629,10 @@ void StagefrightMetadataRetriever::parseMetaData() {
 
     size_t numTracks = mExtractor->countTracks();
 
+    if (numTracks == 0) {      //If no tracks available, corrupt or not valid stream
+        return;
+    }
+
     char tmp[32];
     sprintf(tmp, "%zu", numTracks);
 
@@ -648,6 +656,9 @@ void StagefrightMetadataRetriever::parseMetaData() {
     String8 timedTextLang;
     for (size_t i = 0; i < numTracks; ++i) {
         sp<MetaData> trackMeta = mExtractor->getTrackMetaData(i);
+        if (trackMeta == NULL) {
+            continue;
+        }
 
         int64_t durationUs;
         if (trackMeta->findInt64(kKeyDuration, &durationUs)) {