Remove dead code

Remove code that was unreachable or never called.

Test: build

Change-Id: I82da1a3a046a7fe66bf012aa749d5a2de669d807
diff --git a/media/extractors/mp4/MPEG4Extractor.cpp b/media/extractors/mp4/MPEG4Extractor.cpp
index 3d7e45c..2434282 100644
--- a/media/extractors/mp4/MPEG4Extractor.cpp
+++ b/media/extractors/mp4/MPEG4Extractor.cpp
@@ -354,9 +354,7 @@
       mPreferHeif(mime != NULL && !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_HEIF)),
       mFirstTrack(NULL),
       mLastTrack(NULL),
-      mFileMetaData(new MetaData),
-      mFirstSINF(NULL),
-      mIsDrm(false) {
+      mFileMetaData(new MetaData) {
     ALOGV("mime=%s, mPreferHeif=%d", mime, mPreferHeif);
 }
 
@@ -370,15 +368,6 @@
     }
     mFirstTrack = mLastTrack = NULL;
 
-    SINF *sinf = mFirstSINF;
-    while (sinf) {
-        SINF *next = sinf->next;
-        delete[] sinf->IPMPData;
-        delete sinf;
-        sinf = next;
-    }
-    mFirstSINF = NULL;
-
     for (size_t i = 0; i < mPssh.size(); i++) {
         delete [] mPssh[i].data;
     }
@@ -672,177 +661,6 @@
     return mInitCheck;
 }
 
-char* MPEG4Extractor::getDrmTrackInfo(size_t trackID, int *len) {
-    if (mFirstSINF == NULL) {
-        return NULL;
-    }
-
-    SINF *sinf = mFirstSINF;
-    while (sinf && (trackID != sinf->trackID)) {
-        sinf = sinf->next;
-    }
-
-    if (sinf == NULL) {
-        return NULL;
-    }
-
-    *len = sinf->len;
-    return sinf->IPMPData;
-}
-
-// Reads an encoded integer 7 bits at a time until it encounters the high bit clear.
-static int32_t readSize(off64_t offset,
-        DataSourceBase *DataSourceBase, uint8_t *numOfBytes) {
-    uint32_t size = 0;
-    uint8_t data;
-    bool moreData = true;
-    *numOfBytes = 0;
-
-    while (moreData) {
-        if (DataSourceBase->readAt(offset, &data, 1) < 1) {
-            return -1;
-        }
-        offset ++;
-        moreData = (data >= 128) ? true : false;
-        size = (size << 7) | (data & 0x7f); // Take last 7 bits
-        (*numOfBytes) ++;
-    }
-
-    return size;
-}
-
-status_t MPEG4Extractor::parseDrmSINF(
-        off64_t * /* offset */, off64_t data_offset) {
-    uint8_t updateIdTag;
-    if (mDataSource->readAt(data_offset, &updateIdTag, 1) < 1) {
-        return ERROR_IO;
-    }
-    data_offset ++;
-
-    if (0x01/*OBJECT_DESCRIPTOR_UPDATE_ID_TAG*/ != updateIdTag) {
-        return ERROR_MALFORMED;
-    }
-
-    uint8_t numOfBytes;
-    int32_t size = readSize(data_offset, mDataSource, &numOfBytes);
-    if (size < 0) {
-        return ERROR_IO;
-    }
-    data_offset += numOfBytes;
-
-    while(size >= 11 ) {
-        uint8_t descriptorTag;
-        if (mDataSource->readAt(data_offset, &descriptorTag, 1) < 1) {
-            return ERROR_IO;
-        }
-        data_offset ++;
-
-        if (0x11/*OBJECT_DESCRIPTOR_ID_TAG*/ != descriptorTag) {
-            return ERROR_MALFORMED;
-        }
-
-        uint8_t buffer[8];
-        //ObjectDescriptorID and ObjectDescriptor url flag
-        if (mDataSource->readAt(data_offset, buffer, 2) < 2) {
-            return ERROR_IO;
-        }
-        data_offset += 2;
-
-        if ((buffer[1] >> 5) & 0x0001) { //url flag is set
-            return ERROR_MALFORMED;
-        }
-
-        if (mDataSource->readAt(data_offset, buffer, 8) < 8) {
-            return ERROR_IO;
-        }
-        data_offset += 8;
-
-        if ((0x0F/*ES_ID_REF_TAG*/ != buffer[1])
-                || ( 0x0A/*IPMP_DESCRIPTOR_POINTER_ID_TAG*/ != buffer[5])) {
-            return ERROR_MALFORMED;
-        }
-
-        SINF *sinf = new SINF;
-        sinf->trackID = U16_AT(&buffer[3]);
-        sinf->IPMPDescriptorID = buffer[7];
-        sinf->next = mFirstSINF;
-        mFirstSINF = sinf;
-
-        size -= (8 + 2 + 1);
-    }
-
-    if (size != 0) {
-        return ERROR_MALFORMED;
-    }
-
-    if (mDataSource->readAt(data_offset, &updateIdTag, 1) < 1) {
-        return ERROR_IO;
-    }
-    data_offset ++;
-
-    if(0x05/*IPMP_DESCRIPTOR_UPDATE_ID_TAG*/ != updateIdTag) {
-        return ERROR_MALFORMED;
-    }
-
-    size = readSize(data_offset, mDataSource, &numOfBytes);
-    if (size < 0) {
-        return ERROR_IO;
-    }
-    data_offset += numOfBytes;
-
-    while (size > 0) {
-        uint8_t tag;
-        int32_t dataLen;
-        if (mDataSource->readAt(data_offset, &tag, 1) < 1) {
-            return ERROR_IO;
-        }
-        data_offset ++;
-
-        if (0x0B/*IPMP_DESCRIPTOR_ID_TAG*/ == tag) {
-            uint8_t id;
-            dataLen = readSize(data_offset, mDataSource, &numOfBytes);
-            if (dataLen < 0) {
-                return ERROR_IO;
-            } else if (dataLen < 4) {
-                return ERROR_MALFORMED;
-            }
-            data_offset += numOfBytes;
-
-            if (mDataSource->readAt(data_offset, &id, 1) < 1) {
-                return ERROR_IO;
-            }
-            data_offset ++;
-
-            SINF *sinf = mFirstSINF;
-            while (sinf && (sinf->IPMPDescriptorID != id)) {
-                sinf = sinf->next;
-            }
-            if (sinf == NULL) {
-                return ERROR_MALFORMED;
-            }
-            sinf->len = dataLen - 3;
-            sinf->IPMPData = new (std::nothrow) char[sinf->len];
-            if (sinf->IPMPData == NULL) {
-                return ERROR_MALFORMED;
-            }
-            data_offset += 2;
-
-            if (mDataSource->readAt(data_offset, sinf->IPMPData, sinf->len) < sinf->len) {
-                return ERROR_IO;
-            }
-            data_offset += sinf->len;
-
-            size -= (dataLen + numOfBytes + 1);
-        }
-    }
-
-    if (size != 0) {
-        return ERROR_MALFORMED;
-    }
-
-    return UNKNOWN_ERROR;  // Return a dummy error.
-}
-
 struct PathAdder {
     PathAdder(Vector<uint32_t> *path, uint32_t chunkType)
         : mPath(path) {
@@ -1144,11 +962,7 @@
             } else if (chunk_type == FOURCC('m', 'o', 'o', 'v')) {
                 mInitCheck = OK;
 
-                if (!mIsDrm) {
-                    return UNKNOWN_ERROR;  // Return a dummy error.
-                } else {
-                    return OK;
-                }
+                return UNKNOWN_ERROR;  // Return a dummy error.
             }
             break;
         }
@@ -1596,7 +1410,7 @@
             }
 
             if (chunk_type != FOURCC('e', 'n', 'c', 'a')) {
-                // if the chunk type is enca, we'll get the type from the sinf/frma box later
+                // if the chunk type is enca, we'll get the type from the frma box later
                 mLastTrack->meta->setCString(kKeyMIMEType, FourCC2MIME(chunk_type));
                 AdjustChannelsAndRate(chunk_type, &num_channels, &sample_rate);
             }
@@ -1656,7 +1470,7 @@
                 return ERROR_MALFORMED;
 
             if (chunk_type != FOURCC('e', 'n', 'c', 'v')) {
-                // if the chunk type is encv, we'll get the type from the sinf/frma box later
+                // if the chunk type is encv, we'll get the type from the frma box later
                 mLastTrack->meta->setCString(kKeyMIMEType, FourCC2MIME(chunk_type));
             }
             mLastTrack->meta->setInt32(kKeyWidth, width);
@@ -2278,20 +2092,10 @@
 
         case FOURCC('m', 'd', 'a', 't'):
         {
-            ALOGV("mdat chunk, drm: %d", mIsDrm);
-
             mMdatFound = true;
 
-            if (!mIsDrm) {
-                *offset += chunk_size;
-                break;
-            }
-
-            if (chunk_size < 8) {
-                return ERROR_MALFORMED;
-            }
-
-            return parseDrmSINF(offset, data_offset);
+            *offset += chunk_size;
+            break;
         }
 
         case FOURCC('h', 'd', 'l', 'r'):
diff --git a/media/extractors/mp4/MPEG4Extractor.h b/media/extractors/mp4/MPEG4Extractor.h
index 644c430..5c86345 100644
--- a/media/extractors/mp4/MPEG4Extractor.h
+++ b/media/extractors/mp4/MPEG4Extractor.h
@@ -63,9 +63,6 @@
     virtual uint32_t flags() const;
     virtual const char * name() { return "MPEG4Extractor"; }
 
-    // for DRM
-    virtual char* getDrmTrackInfo(size_t trackID, int *len);
-
 protected:
     virtual ~MPEG4Extractor();
 
@@ -131,21 +128,8 @@
 
     static status_t verifyTrack(Track *track);
 
-    struct SINF {
-        SINF *next;
-        uint16_t trackID;
-        uint8_t IPMPDescriptorID;
-        ssize_t len;
-        char *IPMPData;
-    };
-
-    SINF *mFirstSINF;
-
-    bool mIsDrm;
     sp<ItemTable> mItemTable;
 
-    status_t parseDrmSINF(off64_t *offset, off64_t data_offset);
-
     status_t parseTrackHeader(off64_t data_offset, off64_t data_size);
 
     status_t parseSegmentIndex(off64_t data_offset, size_t data_size);
diff --git a/media/libmedia/IMediaExtractor.cpp b/media/libmedia/IMediaExtractor.cpp
index 51ccb5a..e9a6230 100644
--- a/media/libmedia/IMediaExtractor.cpp
+++ b/media/libmedia/IMediaExtractor.cpp
@@ -35,9 +35,7 @@
     GETTRACKMETADATA,
     GETMETADATA,
     FLAGS,
-    GETDRMTRACKINFO,
     SETMEDIACAS,
-    SETUID,
     NAME,
     GETMETRICS
 };
@@ -112,11 +110,6 @@
         return 0;
     }
 
-    virtual char* getDrmTrackInfo(size_t trackID __unused, int *len __unused) {
-        ALOGV("getDrmTrackInfo NOT IMPLEMENTED");
-        return NULL;
-    }
-
     virtual status_t setMediaCas(const HInterfaceToken &casToken) {
         ALOGV("setMediaCas");
 
@@ -131,10 +124,6 @@
         return reply.readInt32();
     }
 
-    virtual void setUID(uid_t uid __unused) {
-        ALOGV("setUID NOT IMPLEMENTED");
-    }
-
     virtual const char * name() {
         ALOGV("name NOT IMPLEMENTED");
         return NULL;
diff --git a/media/libmedia/include/media/IMediaExtractor.h b/media/libmedia/include/media/IMediaExtractor.h
index 9899429..75e4ee2 100644
--- a/media/libmedia/include/media/IMediaExtractor.h
+++ b/media/libmedia/include/media/IMediaExtractor.h
@@ -60,13 +60,8 @@
     // CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK | CAN_PAUSE
     virtual uint32_t flags() const = 0;
 
-    // for DRM
-    virtual char* getDrmTrackInfo(size_t trackID, int *len)  = 0;
-
     virtual status_t setMediaCas(const HInterfaceToken &casToken) = 0;
 
-    virtual void setUID(uid_t uid)  = 0;
-
     virtual const char * name() = 0;
 };
 
diff --git a/media/libmediaextractor/include/media/MediaExtractor.h b/media/libmediaextractor/include/media/MediaExtractor.h
index 2e65620..c329903 100644
--- a/media/libmediaextractor/include/media/MediaExtractor.h
+++ b/media/libmediaextractor/include/media/MediaExtractor.h
@@ -72,12 +72,6 @@
     // CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK | CAN_PAUSE
     virtual uint32_t flags() const;
 
-    // for DRM
-    virtual char* getDrmTrackInfo(size_t /*trackID*/, int * /*len*/) {
-        return NULL;
-    }
-    virtual void setUID(uid_t /*uid*/) {
-    }
     virtual status_t setMediaCas(const uint8_t* /*casToken*/, size_t /*size*/) {
         return INVALID_OPERATION;
     }
diff --git a/media/libmediaextractor/include/media/stagefright/MetaData.h b/media/libmediaextractor/include/media/stagefright/MetaData.h
index c2a2d1e..7562a72 100644
--- a/media/libmediaextractor/include/media/stagefright/MetaData.h
+++ b/media/libmediaextractor/include/media/stagefright/MetaData.h
@@ -149,8 +149,6 @@
     // To store the timed text format data
     kKeyTextFormatData    = 'text',  // raw data
 
-    kKeyRequiresSecureBuffers = 'secu',  // bool (int32_t)
-
     kKeyIsADTS            = 'adts',  // bool (int32_t)
     kKeyAACAOT            = 'aaot',  // int32_t
 
diff --git a/media/libstagefright/RemoteMediaExtractor.cpp b/media/libstagefright/RemoteMediaExtractor.cpp
index 5bb0953..7efb91c 100644
--- a/media/libstagefright/RemoteMediaExtractor.cpp
+++ b/media/libstagefright/RemoteMediaExtractor.cpp
@@ -121,14 +121,6 @@
     return mExtractor->flags();
 }
 
-char* RemoteMediaExtractor::getDrmTrackInfo(size_t trackID, int * len) {
-    return mExtractor->getDrmTrackInfo(trackID, len);
-}
-
-void RemoteMediaExtractor::setUID(uid_t uid) {
-    return mExtractor->setUID(uid);
-}
-
 status_t RemoteMediaExtractor::setMediaCas(const HInterfaceToken &casToken) {
     return mExtractor->setMediaCas((uint8_t*)casToken.data(), casToken.size());
 }
diff --git a/media/libstagefright/include/media/stagefright/RemoteMediaExtractor.h b/media/libstagefright/include/media/stagefright/RemoteMediaExtractor.h
index 22a8210..509e669 100644
--- a/media/libstagefright/include/media/stagefright/RemoteMediaExtractor.h
+++ b/media/libstagefright/include/media/stagefright/RemoteMediaExtractor.h
@@ -40,8 +40,6 @@
     virtual sp<MetaData> getMetaData();
     virtual status_t getMetrics(Parcel *reply);
     virtual uint32_t flags() const;
-    virtual char* getDrmTrackInfo(size_t trackID, int * len);
-    virtual void setUID(uid_t uid);
     virtual status_t setMediaCas(const HInterfaceToken &casToken);
     virtual const char * name();