diff --git a/cmds/stagefright/JPEGSource.cpp b/cmds/stagefright/JPEGSource.cpp
index 4e9ca4e..25c772f 100644
--- a/cmds/stagefright/JPEGSource.cpp
+++ b/cmds/stagefright/JPEGSource.cpp
@@ -23,6 +23,7 @@
 #include <media/stagefright/DataSource.h>
 #include <media/stagefright/MediaBufferGroup.h>
 #include <media/stagefright/MediaDebug.h>
+#include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/MetaData.h>
 
@@ -99,7 +100,7 @@
 
 sp<MetaData> JPEGSource::getFormat() {
     sp<MetaData> meta = new MetaData;
-    meta->setCString(kKeyMIMEType, "image/jpeg");
+    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_IMAGE_JPEG);
     meta->setInt32(kKeyWidth, mWidth);
     meta->setInt32(kKeyHeight, mHeight);
     meta->setInt32(kKeyMaxInputSize, mSize);
diff --git a/cmds/stagefright/SineSource.cpp b/cmds/stagefright/SineSource.cpp
index 3c25a7f..e5a6ccb 100644
--- a/cmds/stagefright/SineSource.cpp
+++ b/cmds/stagefright/SineSource.cpp
@@ -4,6 +4,7 @@
 
 #include <media/stagefright/MediaBufferGroup.h>
 #include <media/stagefright/MediaDebug.h>
+#include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MetaData.h>
 
 namespace android {
@@ -48,7 +49,7 @@
 
 sp<MetaData> SineSource::getFormat() {
     sp<MetaData> meta = new MetaData;
-    meta->setCString(kKeyMIMEType, "audio/raw");
+    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_RAW);
     meta->setInt32(kKeyChannelCount, mNumChannels);
     meta->setInt32(kKeySampleRate, mSampleRate);
 
diff --git a/cmds/stagefright/record.cpp b/cmds/stagefright/record.cpp
index 4751580..323d448 100644
--- a/cmds/stagefright/record.cpp
+++ b/cmds/stagefright/record.cpp
@@ -21,6 +21,7 @@
 #include <media/stagefright/CameraSource.h>
 #include <media/stagefright/MediaBufferGroup.h>
 #include <media/stagefright/MediaDebug.h>
+#include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/MPEG4Extractor.h>
 #include <media/stagefright/MPEG4Writer.h>
@@ -45,7 +46,7 @@
         sp<MetaData> meta = new MetaData;
         meta->setInt32(kKeyWidth, mWidth);
         meta->setInt32(kKeyHeight, mHeight);
-        meta->setCString(kKeyMIMEType, "video/raw");
+        meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RAW);
 
         return meta;
     }
@@ -149,8 +150,8 @@
 #endif
 
     sp<MetaData> enc_meta = new MetaData;
-    // enc_meta->setCString(kKeyMIMEType, "video/3gpp");
-    enc_meta->setCString(kKeyMIMEType, "video/mp4v-es");
+    // enc_meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_H263);
+    enc_meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4);
     enc_meta->setInt32(kKeyWidth, width);
     enc_meta->setInt32(kKeyHeight, height);
 
@@ -228,7 +229,8 @@
 #endif
 
     sp<MetaData> encMeta = new MetaData;
-    encMeta->setCString(kKeyMIMEType, 1 ? "audio/amr-wb" : "audio/mp4a-latm");
+    encMeta->setCString(kKeyMIMEType,
+            1 ? MEDIA_MIMETYPE_AUDIO_AMR_WB : MEDIA_MIMETYPE_AUDIO_AAC);
     encMeta->setInt32(kKeySampleRate, kSampleRate);
     encMeta->setInt32(kKeyChannelCount, kNumChannels);
     encMeta->setInt32(kKeyMaxInputSize, 8192);
diff --git a/cmds/stagefright/stagefright.cpp b/cmds/stagefright/stagefright.cpp
index a0b83fb..d1926b4 100644
--- a/cmds/stagefright/stagefright.cpp
+++ b/cmds/stagefright/stagefright.cpp
@@ -26,6 +26,7 @@
 #include <media/stagefright/CachingDataSource.h>
 #include <media/stagefright/HTTPDataSource.h>
 #include <media/stagefright/MediaDebug.h>
+#include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaPlayerImpl.h>
 #include <media/stagefright/MediaExtractor.h>
 #include <media/stagefright/MediaSource.h>
@@ -126,6 +127,7 @@
     fprintf(stderr, "       -l(ist) components\n");
     fprintf(stderr, "       -m max-number-of-frames-to-decode in each pass\n");
     fprintf(stderr, "       -b bug to reproduce\n");
+    fprintf(stderr, "       -p(rofiles) dump decoder profiles supported\n");
 }
 
 int main(int argc, char **argv) {
@@ -133,12 +135,13 @@
 
     bool audioOnly = false;
     bool listComponents = false;
+    bool dumpProfiles = false;
     gNumRepetitions = 1;
     gMaxNumFrames = 0;
     gReproduceBug = -1;
 
     int res;
-    while ((res = getopt(argc, argv, "han:lm:b:")) >= 0) {
+    while ((res = getopt(argc, argv, "han:lm:b:p")) >= 0) {
         switch (res) {
             case 'a':
             {
@@ -174,6 +177,12 @@
                 break;
             }
 
+            case 'p':
+            {
+                dumpProfiles = true;
+                break;
+            }
+
             case '?':
             case 'h':
             default:
@@ -188,6 +197,53 @@
     argc -= optind;
     argv += optind;
 
+    if (dumpProfiles) {
+        sp<IServiceManager> sm = defaultServiceManager();
+        sp<IBinder> binder = sm->getService(String16("media.player"));
+        sp<IMediaPlayerService> service =
+            interface_cast<IMediaPlayerService>(binder);
+
+        CHECK(service.get() != NULL);
+
+        sp<IOMX> omx = service->createOMX();
+        CHECK(omx.get() != NULL);
+
+        const char *kMimeTypes[] = {
+            MEDIA_MIMETYPE_VIDEO_AVC, MEDIA_MIMETYPE_VIDEO_MPEG4,
+            MEDIA_MIMETYPE_VIDEO_H263
+        };
+
+        for (size_t k = 0; k < sizeof(kMimeTypes) / sizeof(kMimeTypes[0]);
+             ++k) {
+            printf("type '%s':\n", kMimeTypes[k]);
+
+            Vector<CodecCapabilities> results;
+            CHECK_EQ(QueryCodecs(omx, kMimeTypes[k],
+                                 true, // queryDecoders
+                                 &results), OK);
+
+            for (size_t i = 0; i < results.size(); ++i) {
+                printf("  decoder '%s' supports ",
+                       results[i].mComponentName.string());
+
+                if (results[i].mProfileLevels.size() == 0) {
+                    printf("NOTHING.\n");
+                    continue;
+                }
+
+                for (size_t j = 0; j < results[i].mProfileLevels.size(); ++j) {
+                    const CodecProfileLevel &profileLevel =
+                        results[i].mProfileLevels[j];
+
+                    printf("%s%ld/%ld", j > 0 ? ", " : "",
+                           profileLevel.mProfile, profileLevel.mLevel);
+                }
+
+                printf("\n");
+            }
+        }
+    }
+
     if (listComponents) {
         sp<IServiceManager> sm = defaultServiceManager();
         sp<IBinder> binder = sm->getService(String16("media.player"));
diff --git a/include/media/stagefright/MediaDefs.h b/include/media/stagefright/MediaDefs.h
new file mode 100644
index 0000000..feb66e3
--- /dev/null
+++ b/include/media/stagefright/MediaDefs.h
@@ -0,0 +1,40 @@
+/*
+ * 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.
+ */
+
+#ifndef MEDIA_DEFS_H_
+
+#define MEDIA_DEFS_H_
+
+namespace android {
+
+extern const char *MEDIA_MIMETYPE_IMAGE_JPEG;
+
+extern const char *MEDIA_MIMETYPE_VIDEO_AVC;
+extern const char *MEDIA_MIMETYPE_VIDEO_MPEG4;
+extern const char *MEDIA_MIMETYPE_VIDEO_H263;
+extern const char *MEDIA_MIMETYPE_VIDEO_RAW;
+
+extern const char *MEDIA_MIMETYPE_AUDIO_AMR_NB;
+extern const char *MEDIA_MIMETYPE_AUDIO_AMR_WB;
+extern const char *MEDIA_MIMETYPE_AUDIO_MPEG;
+extern const char *MEDIA_MIMETYPE_AUDIO_AAC;
+extern const char *MEDIA_MIMETYPE_AUDIO_RAW;
+
+extern const char *MEDIA_MIMETYPE_CONTAINER_MPEG4;
+
+}  // namespace android
+
+#endif  // MEDIA_DEFS_H_
diff --git a/include/media/stagefright/OMXCodec.h b/include/media/stagefright/OMXCodec.h
index 7f99553..ff7e34a 100644
--- a/include/media/stagefright/OMXCodec.h
+++ b/include/media/stagefright/OMXCodec.h
@@ -33,7 +33,12 @@
     static sp<OMXCodec> Create(
             const sp<IOMX> &omx,
             const sp<MetaData> &meta, bool createEncoder,
-            const sp<MediaSource> &source);
+            const sp<MediaSource> &source,
+            const char *matchComponentName = NULL);
+
+    static void setComponentRole(
+            const sp<IOMX> &omx, IOMX::node_id node, bool isEncoder,
+            const char *mime);
 
     virtual status_t start(MetaData *params = NULL);
     virtual status_t stop();
@@ -206,6 +211,32 @@
     OMXCodec &operator=(const OMXCodec &);
 };
 
+struct CodecProfileLevel {
+    OMX_U32 mProfile;
+    OMX_U32 mLevel;
+};
+
+struct CodecCapabilities {
+    String8 mComponentName;
+    Vector<CodecProfileLevel> mProfileLevels;
+};
+
+// Return a vector of componentNames with supported profile/level pairs
+// supporting the given mime type, if queryDecoders==true, returns components
+// that decode content of the given type, otherwise returns components
+// that encode content of the given type.
+// profile and level indications only make sense for h.263, mpeg4 and avc
+// video.
+// The profile/level values correspond to
+// OMX_VIDEO_H263PROFILETYPE, OMX_VIDEO_MPEG4PROFILETYPE,
+// OMX_VIDEO_AVCPROFILETYPE, OMX_VIDEO_H263LEVELTYPE, OMX_VIDEO_MPEG4LEVELTYPE
+// and OMX_VIDEO_AVCLEVELTYPE respectively.
+
+status_t QueryCodecs(
+        const sp<IOMX> &omx,
+        const char *mimeType, bool queryDecoders,
+        Vector<CodecCapabilities> *results);
+
 }  // namespace android
 
 #endif  // OMX_CODEC_H_
diff --git a/media/libstagefright/AMRExtractor.cpp b/media/libstagefright/AMRExtractor.cpp
index 4772aca..8d85ce2 100644
--- a/media/libstagefright/AMRExtractor.cpp
+++ b/media/libstagefright/AMRExtractor.cpp
@@ -22,6 +22,7 @@
 #include <media/stagefright/DataSource.h>
 #include <media/stagefright/MediaBufferGroup.h>
 #include <media/stagefright/MediaDebug.h>
+#include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/MediaSource.h>
 #include <media/stagefright/MetaData.h>
@@ -66,7 +67,7 @@
     float confidence;
     if (SniffAMR(mDataSource, &mimeType, &confidence)) {
         mInitCheck = OK;
-        mIsWide = (mimeType == "audio/amr-wb");
+        mIsWide = (mimeType == MEDIA_MIMETYPE_AUDIO_AMR_WB);
     }
 }
 
@@ -96,7 +97,10 @@
 // static
 sp<MetaData> AMRExtractor::makeAMRFormat(bool isWide) {
     sp<MetaData> meta = new MetaData;
-    meta->setCString(kKeyMIMEType, isWide ? "audio/amr-wb" : "audio/3gpp");
+    meta->setCString(
+            kKeyMIMEType, isWide ? MEDIA_MIMETYPE_AUDIO_AMR_WB
+                                 : MEDIA_MIMETYPE_AUDIO_AMR_NB);
+
     meta->setInt32(kKeyChannelCount, 1);
     meta->setInt32(kKeySampleRate, isWide ? 16000 : 8000);
 
@@ -221,12 +225,12 @@
     }
 
     if (!memcmp(header, "#!AMR\n", 6)) {
-        *mimeType = "audio/3gpp";
+        *mimeType = MEDIA_MIMETYPE_AUDIO_AMR_NB;
         *confidence = 0.5;
 
         return true;
     } else if (!memcmp(header, "#!AMR-WB\n", 9)) {
-        *mimeType = "audio/amr-wb";
+        *mimeType = MEDIA_MIMETYPE_AUDIO_AMR_WB;
         *confidence = 0.5;
 
         return true;
diff --git a/media/libstagefright/Android.mk b/media/libstagefright/Android.mk
index c3a4722..a4f2c79 100644
--- a/media/libstagefright/Android.mk
+++ b/media/libstagefright/Android.mk
@@ -13,6 +13,7 @@
         MPEG4Writer.cpp           \
         MediaBuffer.cpp           \
         MediaBufferGroup.cpp      \
+        MediaDefs.cpp             \
         MediaExtractor.cpp        \
         MediaPlayerImpl.cpp       \
         MediaSource.cpp           \
diff --git a/media/libstagefright/AudioPlayer.cpp b/media/libstagefright/AudioPlayer.cpp
index 140bc68..319488e 100644
--- a/media/libstagefright/AudioPlayer.cpp
+++ b/media/libstagefright/AudioPlayer.cpp
@@ -20,6 +20,7 @@
 #include <media/AudioTrack.h>
 #include <media/stagefright/AudioPlayer.h>
 #include <media/stagefright/MediaDebug.h>
+#include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaSource.h>
 #include <media/stagefright/MetaData.h>
 
@@ -61,7 +62,7 @@
     const char *mime;
     bool success = format->findCString(kKeyMIMEType, &mime);
     CHECK(success);
-    CHECK(!strcasecmp(mime, "audio/raw"));
+    CHECK(!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_RAW));
 
     success = format->findInt32(kKeySampleRate, &mSampleRate);
     CHECK(success);
diff --git a/media/libstagefright/CameraSource.cpp b/media/libstagefright/CameraSource.cpp
index f75b173..596ab67 100644
--- a/media/libstagefright/CameraSource.cpp
+++ b/media/libstagefright/CameraSource.cpp
@@ -155,7 +155,7 @@
 
 sp<MetaData> CameraSource::getFormat() {
     sp<MetaData> meta = new MetaData;
-    meta->setCString(kKeyMIMEType, "video/raw");
+    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RAW);
     meta->setInt32(kKeyColorFormat, OMX_COLOR_FormatYUV420SemiPlanar);
     meta->setInt32(kKeyWidth, 480);
     meta->setInt32(kKeyHeight, 320);
diff --git a/media/libstagefright/MP3Extractor.cpp b/media/libstagefright/MP3Extractor.cpp
index 14f3e0c..7fd699f 100644
--- a/media/libstagefright/MP3Extractor.cpp
+++ b/media/libstagefright/MP3Extractor.cpp
@@ -23,6 +23,7 @@
 #include <media/stagefright/MediaBuffer.h>
 #include <media/stagefright/MediaBufferGroup.h>
 #include <media/stagefright/MediaDebug.h>
+#include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/MediaSource.h>
 #include <media/stagefright/MetaData.h>
@@ -330,7 +331,7 @@
 
         mMeta = new MetaData;
 
-        mMeta->setCString(kKeyMIMEType, "audio/mpeg");
+        mMeta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG);
         mMeta->setInt32(kKeySampleRate, sample_rate);
         mMeta->setInt32(kKeyBitRate, bitrate);
         mMeta->setInt32(kKeyChannelCount, num_channels);
@@ -510,7 +511,7 @@
         return false;
     }
 
-    *mimeType = "audio/mpeg";
+    *mimeType = MEDIA_MIMETYPE_AUDIO_MPEG;
     *confidence = 0.3f;
 
     return true;
diff --git a/media/libstagefright/MPEG4Extractor.cpp b/media/libstagefright/MPEG4Extractor.cpp
index 433fb18..9174d19 100644
--- a/media/libstagefright/MPEG4Extractor.cpp
+++ b/media/libstagefright/MPEG4Extractor.cpp
@@ -29,6 +29,7 @@
 #include <media/stagefright/MediaBuffer.h>
 #include <media/stagefright/MediaBufferGroup.h>
 #include <media/stagefright/MediaDebug.h>
+#include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaSource.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/SampleTable.h>
@@ -116,25 +117,25 @@
     }
 }
 
-static const char *const FourCC2MIME(uint32_t fourcc) {
+static const char *FourCC2MIME(uint32_t fourcc) {
     switch (fourcc) {
         case FOURCC('m', 'p', '4', 'a'):
-            return "audio/mp4a-latm";
+            return MEDIA_MIMETYPE_AUDIO_AAC;
 
         case FOURCC('s', 'a', 'm', 'r'):
-            return "audio/3gpp";
+            return MEDIA_MIMETYPE_AUDIO_AMR_NB;
 
         case FOURCC('s', 'a', 'w', 'b'):
-            return "audio/amr-wb";
+            return MEDIA_MIMETYPE_AUDIO_AMR_WB;
 
         case FOURCC('m', 'p', '4', 'v'):
-            return "video/mp4v-es";
+            return MEDIA_MIMETYPE_VIDEO_MPEG4;
 
         case FOURCC('s', '2', '6', '3'):
-            return "video/3gpp";
+            return MEDIA_MIMETYPE_VIDEO_H263;
 
         case FOURCC('a', 'v', 'c', '1'):
-            return "video/avc";
+            return MEDIA_MIMETYPE_VIDEO_AVC;
 
         default:
             CHECK(!"should not be here.");
@@ -499,8 +500,10 @@
             uint16_t data_ref_index = U16_AT(&buffer[6]);
             uint16_t num_channels = U16_AT(&buffer[16]);
 
-            if (!strcasecmp("audio/3gpp", FourCC2MIME(chunk_type))
-                || !strcasecmp("audio/amr-wb", FourCC2MIME(chunk_type))) {
+            if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AMR_NB,
+                            FourCC2MIME(chunk_type))
+                || !strcasecmp(MEDIA_MIMETYPE_AUDIO_AMR_WB,
+                               FourCC2MIME(chunk_type))) {
                 // AMR audio is always mono.
                 num_channels = 1;
             }
@@ -746,7 +749,7 @@
     success = mFormat->findInt32(kKeyTimeScale, &mTimescale);
     CHECK(success);
 
-    mIsAVC = !strcasecmp(mime, "video/avc");
+    mIsAVC = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC);
 }
 
 MPEG4Source::~MPEG4Source() {
@@ -978,7 +981,7 @@
 
     if (!memcmp(header, "ftyp3gp", 7) || !memcmp(header, "ftypmp42", 8)
         || !memcmp(header, "ftypisom", 8) || !memcmp(header, "ftypM4V ", 8)) {
-        *mimeType = "video/mp4";
+        *mimeType = MEDIA_MIMETYPE_CONTAINER_MPEG4;
         *confidence = 0.1;
 
         return true;
diff --git a/media/libstagefright/MPEG4Writer.cpp b/media/libstagefright/MPEG4Writer.cpp
index d3da889..fa35768 100644
--- a/media/libstagefright/MPEG4Writer.cpp
+++ b/media/libstagefright/MPEG4Writer.cpp
@@ -23,6 +23,7 @@
 #include <media/stagefright/MediaBuffer.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/MediaDebug.h>
+#include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaSource.h>
 #include <media/stagefright/Utils.h>
 
@@ -351,7 +352,7 @@
     sp<MetaData> meta = mSource->getFormat();
     const char *mime;
     meta->findCString(kKeyMIMEType, &mime);
-    is_mpeg4 = !strcasecmp(mime, "video/mp4v-es");
+    is_mpeg4 = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_MPEG4);
 
     MediaBuffer *buffer;
     while (!mDone && mSource->read(&buffer) == OK) {
@@ -528,9 +529,9 @@
             mOwner->writeInt32(1);               // entry count
             if (is_audio) {
                 const char *fourcc = NULL;
-                if (!strcasecmp("audio/3gpp", mime)) {
+                if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AMR_NB, mime)) {
                     fourcc = "samr";
-                } else if (!strcasecmp("audio/amr-wb", mime)) {
+                } else if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AMR_WB, mime)) {
                     fourcc = "sawb";
                 } else {
                     LOGE("Unknown mime type '%s'.", mime);
@@ -555,9 +556,9 @@
                   mOwner->writeInt32(samplerate << 16);
                 mOwner->endBox();
             } else {
-                if (!strcasecmp("video/mp4v-es", mime)) {
+                if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_MPEG4, mime)) {
                     mOwner->beginBox("mp4v");
-                } else if (!strcasecmp("video/3gpp", mime)) {
+                } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_H263, mime)) {
                     mOwner->beginBox("s263");
                 } else {
                     LOGE("Unknown mime type '%s'.", mime);
@@ -590,7 +591,7 @@
 
                   CHECK(23 + mCodecSpecificDataSize < 128);
 
-                  if (!strcasecmp("video/mp4v-es", mime)) {
+                  if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_MPEG4, mime)) {
                       mOwner->beginBox("esds");
 
                         mOwner->writeInt32(0);           // version=0, flags=0
@@ -625,7 +626,7 @@
                         mOwner->write(kData2, sizeof(kData2));
 
                       mOwner->endBox();  // esds
-                  } else if (!strcasecmp("video/3gpp", mime)) {
+                  } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_H263, mime)) {
                       mOwner->beginBox("d263");
 
                           mOwner->writeInt32(0);  // vendor
diff --git a/media/libstagefright/MediaDefs.cpp b/media/libstagefright/MediaDefs.cpp
new file mode 100644
index 0000000..87b5b24
--- /dev/null
+++ b/media/libstagefright/MediaDefs.cpp
@@ -0,0 +1,36 @@
+/*
+ * 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.
+ */
+
+#include <media/stagefright/MediaDefs.h>
+
+namespace android {
+
+const char *MEDIA_MIMETYPE_IMAGE_JPEG = "image/jpeg";
+
+const char *MEDIA_MIMETYPE_VIDEO_AVC = "video/avc";
+const char *MEDIA_MIMETYPE_VIDEO_MPEG4 = "video/mp4v-es";
+const char *MEDIA_MIMETYPE_VIDEO_H263 = "video/3gpp";
+const char *MEDIA_MIMETYPE_VIDEO_RAW = "video/raw";
+
+const char *MEDIA_MIMETYPE_AUDIO_AMR_NB = "audio/3gpp";
+const char *MEDIA_MIMETYPE_AUDIO_AMR_WB = "audio/amr-wb";
+const char *MEDIA_MIMETYPE_AUDIO_MPEG = "audio/mpeg";
+const char *MEDIA_MIMETYPE_AUDIO_AAC = "audio/mp4a-latm";
+const char *MEDIA_MIMETYPE_AUDIO_RAW = "audio/raw";
+
+const char *MEDIA_MIMETYPE_CONTAINER_MPEG4 = "video/mpeg4";
+
+}  // namespace android
diff --git a/media/libstagefright/MediaExtractor.cpp b/media/libstagefright/MediaExtractor.cpp
index 8afa8e1..8535f52 100644
--- a/media/libstagefright/MediaExtractor.cpp
+++ b/media/libstagefright/MediaExtractor.cpp
@@ -20,6 +20,7 @@
 
 #include <media/stagefright/AMRExtractor.h>
 #include <media/stagefright/DataSource.h>
+#include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MP3Extractor.h>
 #include <media/stagefright/MPEG4Extractor.h>
 #include <media/stagefright/MediaExtractor.h>
@@ -44,12 +45,13 @@
              mime, confidence);
     }
 
-    if (!strcasecmp(mime, "video/mp4") || !strcasecmp(mime, "audio/mp4")) {
+    if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG4)
+            || !strcasecmp(mime, "audio/mp4")) {
         return new MPEG4Extractor(source);
-    } else if (!strcasecmp(mime, "audio/mpeg")) {
+    } else if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_MPEG)) {
         return new MP3Extractor(source);
-    } else if (!strcasecmp(mime, "audio/3gpp")
-            || !strcasecmp(mime, "audio/amr-wb")) {
+    } else if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AMR_NB)
+            || !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AMR_WB)) {
         return new AMRExtractor(source);
     }
 
diff --git a/media/libstagefright/OMXCodec.cpp b/media/libstagefright/OMXCodec.cpp
index 034457f..a964d17 100644
--- a/media/libstagefright/OMXCodec.cpp
+++ b/media/libstagefright/OMXCodec.cpp
@@ -26,6 +26,7 @@
 #include <media/stagefright/MediaBuffer.h>
 #include <media/stagefright/MediaBufferGroup.h>
 #include <media/stagefright/MediaDebug.h>
+#include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaExtractor.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/MmapSource.h>
@@ -44,40 +45,40 @@
 };
 
 static const CodecInfo kDecoderInfo[] = {
-    { "image/jpeg", "OMX.TI.JPEG.decode" },
-    { "audio/mpeg", "OMX.TI.MP3.decode" },
-    { "audio/mpeg", "OMX.PV.mp3dec" },
-    { "audio/3gpp", "OMX.TI.AMR.decode" },
-    { "audio/3gpp", "OMX.PV.amrdec" },
-    { "audio/amr-wb", "OMX.TI.WBAMR.decode" },
-    { "audio/amr-wb", "OMX.PV.amrdec" },
-    { "audio/mp4a-latm", "OMX.TI.AAC.decode" },
-    { "audio/mp4a-latm", "OMX.PV.aacdec" },
-    { "video/mp4v-es", "OMX.qcom.video.decoder.mpeg4" },
-    { "video/mp4v-es", "OMX.TI.Video.Decoder" },
-    { "video/mp4v-es", "OMX.PV.mpeg4dec" },
-    { "video/3gpp", "OMX.qcom.video.decoder.h263" },
-    { "video/3gpp", "OMX.TI.Video.Decoder" },
-    { "video/3gpp", "OMX.PV.h263dec" },
-    { "video/avc", "OMX.qcom.video.decoder.avc" },
-    { "video/avc", "OMX.TI.Video.Decoder" },
-    { "video/avc", "OMX.PV.avcdec" },
+    { MEDIA_MIMETYPE_IMAGE_JPEG, "OMX.TI.JPEG.decode" },
+    { MEDIA_MIMETYPE_AUDIO_MPEG, "OMX.TI.MP3.decode" },
+    { MEDIA_MIMETYPE_AUDIO_MPEG, "OMX.PV.mp3dec" },
+    { MEDIA_MIMETYPE_AUDIO_AMR_NB, "OMX.TI.AMR.decode" },
+    { MEDIA_MIMETYPE_AUDIO_AMR_NB, "OMX.PV.amrdec" },
+    { MEDIA_MIMETYPE_AUDIO_AMR_WB, "OMX.TI.WBAMR.decode" },
+    { MEDIA_MIMETYPE_AUDIO_AMR_WB, "OMX.PV.amrdec" },
+    { MEDIA_MIMETYPE_AUDIO_AAC, "OMX.TI.AAC.decode" },
+    { MEDIA_MIMETYPE_AUDIO_AAC, "OMX.PV.aacdec" },
+    { MEDIA_MIMETYPE_VIDEO_MPEG4, "OMX.qcom.video.decoder.mpeg4" },
+    { MEDIA_MIMETYPE_VIDEO_MPEG4, "OMX.TI.Video.Decoder" },
+    { MEDIA_MIMETYPE_VIDEO_MPEG4, "OMX.PV.mpeg4dec" },
+    { MEDIA_MIMETYPE_VIDEO_H263, "OMX.qcom.video.decoder.h263" },
+    { MEDIA_MIMETYPE_VIDEO_H263, "OMX.TI.Video.Decoder" },
+    { MEDIA_MIMETYPE_VIDEO_H263, "OMX.PV.h263dec" },
+    { MEDIA_MIMETYPE_VIDEO_AVC, "OMX.qcom.video.decoder.avc" },
+    { MEDIA_MIMETYPE_VIDEO_AVC, "OMX.TI.Video.Decoder" },
+    { MEDIA_MIMETYPE_VIDEO_AVC, "OMX.PV.avcdec" },
 };
 
 static const CodecInfo kEncoderInfo[] = {
-    { "audio/3gpp", "OMX.TI.AMR.encode" },
-    { "audio/3gpp", "OMX.PV.amrencnb" },
-    { "audio/amr-wb", "OMX.TI.WBAMR.encode" },
-    { "audio/mp4a-latm", "OMX.TI.AAC.encode" },
-    { "audio/mp4a-latm", "OMX.PV.aacenc" },
-    { "video/mp4v-es", "OMX.qcom.video.encoder.mpeg4" },
-    { "video/mp4v-es", "OMX.TI.Video.encoder" },
-    { "video/mp4v-es", "OMX.PV.mpeg4enc" },
-    { "video/3gpp", "OMX.qcom.video.encoder.h263" },
-    { "video/3gpp", "OMX.TI.Video.encoder" },
-    { "video/3gpp", "OMX.PV.h263enc" },
-    { "video/avc", "OMX.TI.Video.encoder" },
-    { "video/avc", "OMX.PV.avcenc" },
+    { MEDIA_MIMETYPE_AUDIO_AMR_NB, "OMX.TI.AMR.encode" },
+    { MEDIA_MIMETYPE_AUDIO_AMR_NB, "OMX.PV.amrencnb" },
+    { MEDIA_MIMETYPE_AUDIO_AMR_WB, "OMX.TI.WBAMR.encode" },
+    { MEDIA_MIMETYPE_AUDIO_AAC, "OMX.TI.AAC.encode" },
+    { MEDIA_MIMETYPE_AUDIO_AAC, "OMX.PV.aacenc" },
+    { MEDIA_MIMETYPE_VIDEO_MPEG4, "OMX.qcom.video.encoder.mpeg4" },
+    { MEDIA_MIMETYPE_VIDEO_MPEG4, "OMX.TI.Video.encoder" },
+    { MEDIA_MIMETYPE_VIDEO_MPEG4, "OMX.PV.mpeg4enc" },
+    { MEDIA_MIMETYPE_VIDEO_H263, "OMX.qcom.video.encoder.h263" },
+    { MEDIA_MIMETYPE_VIDEO_H263, "OMX.TI.Video.encoder" },
+    { MEDIA_MIMETYPE_VIDEO_H263, "OMX.PV.h263enc" },
+    { MEDIA_MIMETYPE_VIDEO_AVC, "OMX.TI.Video.encoder" },
+    { MEDIA_MIMETYPE_VIDEO_AVC, "OMX.PV.avcenc" },
 };
 
 #define CODEC_LOGI(x, ...) LOGI("[%s] "x, mComponentName, ##__VA_ARGS__)
@@ -169,7 +170,8 @@
 sp<OMXCodec> OMXCodec::Create(
         const sp<IOMX> &omx,
         const sp<MetaData> &meta, bool createEncoder,
-        const sp<MediaSource> &source) {
+        const sp<MediaSource> &source,
+        const char *matchComponentName) {
     const char *mime;
     bool success = meta->findCString(kKeyMIMEType, &mime);
     CHECK(success);
@@ -191,6 +193,11 @@
             return NULL;
         }
 
+        // If a specific codec is requested, skip the non-matching ones.
+        if (matchComponentName && strcmp(componentName, matchComponentName)) {
+            continue;
+        }
+
         LOGV("Attempting to allocate OMX node '%s'", componentName);
 
         status_t err = omx->allocate_node(componentName, &node);
@@ -318,13 +325,13 @@
         }
     }
 
-    if (!strcasecmp("audio/3gpp", mime)) {
+    if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AMR_NB, mime)) {
         codec->setAMRFormat();
     }
-    if (!strcasecmp("audio/amr-wb", mime)) {
+    if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AMR_WB, mime)) {
         codec->setAMRWBFormat();
     }
-    if (!strcasecmp("audio/mp4a-latm", mime)) {
+    if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AAC, mime)) {
         int32_t numChannels, sampleRate;
         CHECK(meta->findInt32(kKeyChannelCount, &numChannels));
         CHECK(meta->findInt32(kKeySampleRate, &sampleRate));
@@ -343,7 +350,7 @@
             codec->setVideoOutputFormat(mime, width, height);
         }
     }
-    if (!strcasecmp(mime, "image/jpeg")
+    if (!strcasecmp(mime, MEDIA_MIMETYPE_IMAGE_JPEG)
         && !strcmp(componentName, "OMX.TI.JPEG.decode")) {
         OMX_COLOR_FORMATTYPE format =
             OMX_COLOR_Format32bitARGB8888;
@@ -471,11 +478,11 @@
     CODEC_LOGI("setVideoInputFormat width=%ld, height=%ld", width, height);
 
     OMX_VIDEO_CODINGTYPE compressionFormat = OMX_VIDEO_CodingUnused;
-    if (!strcasecmp("video/avc", mime)) {
+    if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime)) {
         compressionFormat = OMX_VIDEO_CodingAVC;
-    } else if (!strcasecmp("video/mp4v-es", mime)) {
+    } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_MPEG4, mime)) {
         compressionFormat = OMX_VIDEO_CodingMPEG4;
-    } else if (!strcasecmp("video/3gpp", mime)) {
+    } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_H263, mime)) {
         compressionFormat = OMX_VIDEO_CodingH263;
     } else {
         LOGE("Not a supported video mime type: %s", mime);
@@ -547,11 +554,11 @@
     CODEC_LOGI("setVideoOutputFormat width=%ld, height=%ld", width, height);
 
     OMX_VIDEO_CODINGTYPE compressionFormat = OMX_VIDEO_CodingUnused;
-    if (!strcasecmp("video/avc", mime)) {
+    if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime)) {
         compressionFormat = OMX_VIDEO_CodingAVC;
-    } else if (!strcasecmp("video/mp4v-es", mime)) {
+    } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_MPEG4, mime)) {
         compressionFormat = OMX_VIDEO_CodingMPEG4;
-    } else if (!strcasecmp("video/3gpp", mime)) {
+    } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_H263, mime)) {
         compressionFormat = OMX_VIDEO_CodingH263;
     } else {
         LOGE("Not a supported video mime type: %s", mime);
@@ -670,7 +677,10 @@
     setComponentRole();
 }
 
-void OMXCodec::setComponentRole() {
+// static
+void OMXCodec::setComponentRole(
+        const sp<IOMX> &omx, IOMX::node_id node, bool isEncoder,
+        const char *mime) {
     struct MimeToRole {
         const char *mime;
         const char *decoderRole;
@@ -678,13 +688,20 @@
     };
 
     static const MimeToRole kMimeToRole[] = {
-        { "audio/mpeg", "audio_decoder.mp3", "audio_encoder.mp3" },
-        { "audio/3gpp", "audio_decoder.amrnb", "audio_encoder.amrnb" },
-        { "audio/amr-wb", "audio_decoder.amrwb", "audio_encoder.amrwb" },
-        { "audio/mp4a-latm", "audio_decoder.aac", "audio_encoder.aac" },
-        { "video/avc",  "video_decoder.avc", "video_encoder.avc" },
-        { "video/mp4v-es", "video_decoder.mpeg4", "video_encoder.mpeg4" },
-        { "video/3gpp", "video_decoder.h263", "video_encoder.h263" },
+        { MEDIA_MIMETYPE_AUDIO_MPEG,
+            "audio_decoder.mp3", "audio_encoder.mp3" },
+        { MEDIA_MIMETYPE_AUDIO_AMR_NB,
+            "audio_decoder.amrnb", "audio_encoder.amrnb" },
+        { MEDIA_MIMETYPE_AUDIO_AMR_WB,
+            "audio_decoder.amrwb", "audio_encoder.amrwb" },
+        { MEDIA_MIMETYPE_AUDIO_AAC,
+            "audio_decoder.aac", "audio_encoder.aac" },
+        { MEDIA_MIMETYPE_VIDEO_AVC,
+            "video_decoder.avc", "video_encoder.avc" },
+        { MEDIA_MIMETYPE_VIDEO_MPEG4,
+            "video_decoder.mpeg4", "video_encoder.mpeg4" },
+        { MEDIA_MIMETYPE_VIDEO_H263,
+            "video_decoder.h263", "video_encoder.h263" },
     };
 
     static const size_t kNumMimeToRole =
@@ -692,7 +709,7 @@
 
     size_t i;
     for (i = 0; i < kNumMimeToRole; ++i) {
-        if (!strcasecmp(mMIME, kMimeToRole[i].mime)) {
+        if (!strcasecmp(mime, kMimeToRole[i].mime)) {
             break;
         }
     }
@@ -702,12 +719,10 @@
     }
 
     const char *role =
-        mIsEncoder ? kMimeToRole[i].encoderRole
-                   : kMimeToRole[i].decoderRole;
+        isEncoder ? kMimeToRole[i].encoderRole
+                  : kMimeToRole[i].decoderRole;
 
     if (role != NULL) {
-        CODEC_LOGV("Setting component role '%s'.", role);
-
         OMX_PARAM_COMPONENTROLETYPE roleParams;
         InitOMXParams(&roleParams);
 
@@ -716,8 +731,8 @@
 
         roleParams.cRole[OMX_MAX_STRINGNAME_SIZE - 1] = '\0';
 
-        status_t err = mOMX->set_parameter(
-                mNode, OMX_IndexParamStandardComponentRole,
+        status_t err = omx->set_parameter(
+                node, OMX_IndexParamStandardComponentRole,
                 &roleParams, sizeof(roleParams));
 
         if (err != OK) {
@@ -726,6 +741,10 @@
     }
 }
 
+void OMXCodec::setComponentRole() {
+    setComponentRole(mOMX, mNode, mIsEncoder, mMIME);
+}
+
 OMXCodec::~OMXCodec() {
     CHECK(mState == LOADED || mState == ERROR);
 
@@ -1359,7 +1378,7 @@
 
         size_t size = specific->mSize;
 
-        if (!strcasecmp("video/avc", mMIME)
+        if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mMIME)
                 && !(mQuirks & kWantsNALFragments)) {
             static const uint8_t kNALStartCode[4] =
                     { 0x00, 0x00, 0x00, 0x01 };
@@ -2250,7 +2269,7 @@
             OMX_IMAGE_PORTDEFINITIONTYPE *imageDef = &def.format.image;
             CHECK_EQ(imageDef->eCompressionFormat, OMX_IMAGE_CodingUnused);
 
-            mOutputFormat->setCString(kKeyMIMEType, "image/raw");
+            mOutputFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RAW);
             mOutputFormat->setInt32(kKeyColorFormat, imageDef->eColorFormat);
             mOutputFormat->setInt32(kKeyWidth, imageDef->nFrameWidth);
             mOutputFormat->setInt32(kKeyHeight, imageDef->nFrameHeight);
@@ -2283,7 +2302,8 @@
                          "the input stream contains.");
                 }
 
-                mOutputFormat->setCString(kKeyMIMEType, "audio/raw");
+                mOutputFormat->setCString(
+                        kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_RAW);
 
                 // Use the codec-advertised number of channels, as some
                 // codecs appear to output stereo even if the input data is
@@ -2306,17 +2326,20 @@
 
                 if (amr.eAMRBandMode >= OMX_AUDIO_AMRBandModeNB0
                     && amr.eAMRBandMode <= OMX_AUDIO_AMRBandModeNB7) {
-                    mOutputFormat->setCString(kKeyMIMEType, "audio/3gpp");
+                    mOutputFormat->setCString(
+                            kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AMR_NB);
                     mOutputFormat->setInt32(kKeySampleRate, 8000);
                 } else if (amr.eAMRBandMode >= OMX_AUDIO_AMRBandModeWB0
                             && amr.eAMRBandMode <= OMX_AUDIO_AMRBandModeWB8) {
-                    mOutputFormat->setCString(kKeyMIMEType, "audio/amr-wb");
+                    mOutputFormat->setCString(
+                            kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AMR_WB);
                     mOutputFormat->setInt32(kKeySampleRate, 16000);
                 } else {
                     CHECK(!"Unknown AMR band mode.");
                 }
             } else if (audio_def->eEncoding == OMX_AUDIO_CodingAAC) {
-                mOutputFormat->setCString(kKeyMIMEType, "audio/mp4a-latm");
+                mOutputFormat->setCString(
+                        kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC);
             } else {
                 CHECK(!"Should not be here. Unknown audio encoding.");
             }
@@ -2328,13 +2351,17 @@
             OMX_VIDEO_PORTDEFINITIONTYPE *video_def = &def.format.video;
 
             if (video_def->eCompressionFormat == OMX_VIDEO_CodingUnused) {
-                mOutputFormat->setCString(kKeyMIMEType, "video/raw");
+                mOutputFormat->setCString(
+                        kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RAW);
             } else if (video_def->eCompressionFormat == OMX_VIDEO_CodingMPEG4) {
-                mOutputFormat->setCString(kKeyMIMEType, "video/mp4v-es");
+                mOutputFormat->setCString(
+                        kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4);
             } else if (video_def->eCompressionFormat == OMX_VIDEO_CodingH263) {
-                mOutputFormat->setCString(kKeyMIMEType, "video/3gpp");
+                mOutputFormat->setCString(
+                        kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_H263);
             } else if (video_def->eCompressionFormat == OMX_VIDEO_CodingAVC) {
-                mOutputFormat->setCString(kKeyMIMEType, "video/avc");
+                mOutputFormat->setCString(
+                        kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
             } else {
                 CHECK(!"Unknown compression format.");
             }
@@ -2362,4 +2389,67 @@
     }
 }
 
+////////////////////////////////////////////////////////////////////////////////
+
+status_t QueryCodecs(
+        const sp<IOMX> &omx,
+        const char *mime, bool queryDecoders,
+        Vector<CodecCapabilities> *results) {
+    results->clear();
+
+    for (int index = 0;; ++index) {
+        const char *componentName;
+
+        if (!queryDecoders) {
+            componentName = GetCodec(
+                    kEncoderInfo, sizeof(kEncoderInfo) / sizeof(kEncoderInfo[0]),
+                    mime, index);
+        } else {
+            componentName = GetCodec(
+                    kDecoderInfo, sizeof(kDecoderInfo) / sizeof(kDecoderInfo[0]),
+                    mime, index);
+        }
+
+        if (!componentName) {
+            return OK;
+        }
+
+        IOMX::node_id node;
+        status_t err = omx->allocate_node(componentName, &node);
+
+        if (err != OK) {
+            continue;
+        }
+
+        OMXCodec::setComponentRole(omx, node, queryDecoders, mime);
+
+        results->push();
+        CodecCapabilities *caps = &results->editItemAt(results->size() - 1);
+        caps->mComponentName = componentName;
+
+        OMX_VIDEO_PARAM_PROFILELEVELTYPE param;
+        InitOMXParams(&param);
+
+        param.nPortIndex = queryDecoders ? 0 : 1;
+
+        for (param.nProfileIndex = 0;; ++param.nProfileIndex) {
+            err = omx->get_parameter(
+                    node, OMX_IndexParamVideoProfileLevelQuerySupported,
+                    &param, sizeof(param));
+
+            if (err != OK) {
+                break;
+            }
+
+            CodecProfileLevel profileLevel;
+            profileLevel.mProfile = param.eProfile;
+            profileLevel.mLevel = param.eLevel;
+
+            caps->mProfileLevels.push(profileLevel);
+        }
+
+        CHECK_EQ(omx->free_node(node), OK);
+    }
+}
+
 }  // namespace android
diff --git a/media/libstagefright/ShoutcastSource.cpp b/media/libstagefright/ShoutcastSource.cpp
index 4375f38..8e8f4fa 100644
--- a/media/libstagefright/ShoutcastSource.cpp
+++ b/media/libstagefright/ShoutcastSource.cpp
@@ -20,6 +20,7 @@
 #include <media/stagefright/MediaBuffer.h>
 #include <media/stagefright/MediaBufferGroup.h>
 #include <media/stagefright/MediaDebug.h>
+#include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/ShoutcastSource.h>
 #include <media/stagefright/string.h>
@@ -77,7 +78,7 @@
 
 sp<MetaData> ShoutcastSource::getFormat() {
     sp<MetaData> meta = new MetaData;
-    meta->setCString(kKeyMIMEType, "audio/mpeg");
+    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG);
     meta->setInt32(kKeySampleRate, 44100);
     meta->setInt32(kKeyChannelCount, 2);  // XXX