Merge "Cannot play back mov file which contains udta atom"
diff --git a/media/extractors/mp4/MPEG4Extractor.cpp b/media/extractors/mp4/MPEG4Extractor.cpp
index 262852f..cc1534a 100644
--- a/media/extractors/mp4/MPEG4Extractor.cpp
+++ b/media/extractors/mp4/MPEG4Extractor.cpp
@@ -985,6 +985,22 @@
             off64_t stop_offset = *offset + chunk_size;
             *offset = data_offset;
             while (*offset < stop_offset) {
+
+                // pass udata terminate
+                if (mIsQT && stop_offset - *offset == 4 && chunk_type == FOURCC("udta")) {
+                    // handle the case that udta terminates with terminate code x00000000
+                    // note that 0 terminator is optional and we just handle this case.
+                    uint32_t terminate_code = 1;
+                    mDataSource->readAt(*offset, &terminate_code, 4);
+                    if (0 == terminate_code) {
+                        *offset += 4;
+                        ALOGD("Terminal code for udta");
+                        continue;
+                    } else {
+                        ALOGW("invalid udta Terminal code");
+                    }
+                }
+
                 status_t err = parseChunk(offset, depth + 1);
                 if (err != OK) {
                     if (isTrack) {