1 files changed, 54 insertions, 0 deletions
diff --git a/media/libstagefright/MediaExtractor.cpp b/media/libstagefright/MediaExtractor.cpp
new file mode 100644
index 0000000..bc66794
--- /dev/null
+++ b/media/libstagefright/MediaExtractor.cpp
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+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "MediaExtractor"
+#include <utils/Log.h>
+
+#include <media/stagefright/DataSource.h>
+#include <media/stagefright/MP3Extractor.h>
+#include <media/stagefright/MPEG4Extractor.h>
+#include <media/stagefright/MediaExtractor.h>
+#include <utils/String8.h>
+
+namespace android {
+
+// static
+MediaExtractor *MediaExtractor::Create(DataSource *source, const char *mime) {
+    String8 tmp;
+    if (mime == NULL) {
+        float confidence;
+        if (!source->sniff(&tmp, &confidence)) {
+            LOGE("FAILED to autodetect media content.");
+
+            return NULL;
+        }
+
+        mime = tmp.string();
+        LOGI("Autodetected media content as '%s' with confidence %.2f",
+             mime, confidence);
+    }
+
+    if (!strcasecmp(mime, "video/mp4") || !strcasecmp(mime, "audio/mp4")) {
+        return new MPEG4Extractor(source);
+    } else if (!strcasecmp(mime, "audio/mpeg")) {
+        return new MP3Extractor(source);
+    }
+
+    return NULL;
+}
+
+}  // namespace android