Handle opus v0 and v1

extractor insisted on v1 opus header; v0 is same format, so we can
easily handle that as well.

Bug: 137530136
Test: play opus v0 content
diff --git a/media/extractors/ogg/OggExtractor.cpp b/media/extractors/ogg/OggExtractor.cpp
index 72b94bb..298dab1 100644
--- a/media/extractors/ogg/OggExtractor.cpp
+++ b/media/extractors/ogg/OggExtractor.cpp
@@ -1062,8 +1062,15 @@
     size_t size = buffer->range_length();
 
     if (size < kOpusHeaderSize
-            || memcmp(data, "OpusHead", 8)
-            || /* version = */ data[8] != 1) {
+            || memcmp(data, "OpusHead", 8)) {
+        return AMEDIA_ERROR_MALFORMED;
+    }
+    // allow both version 0 and 1. Per the opus specification:
+    // An earlier draft of the specification described a version 0, but the only difference
+    // between version 1 and version 0 is that version 0 did not specify the semantics for
+    // handling the version field
+    if ( /* version = */ data[8] > 1) {
+        ALOGW("no support for opus version %d", data[8]);
         return AMEDIA_ERROR_MALFORMED;
     }