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-rw-r--r--media/libstagefright/OggExtractor.cpp441
-rw-r--r--media/libstagefright/include/OggExtractor.h4
2 files changed, 371 insertions, 74 deletions
diff --git a/media/libstagefright/OggExtractor.cpp b/media/libstagefright/OggExtractor.cpp
index 4297549..2451641 100644
--- a/media/libstagefright/OggExtractor.cpp
+++ b/media/libstagefright/OggExtractor.cpp
@@ -21,6 +21,7 @@
#include "include/OggExtractor.h"
#include <cutils/properties.h>
+#include <media/stagefright/foundation/ABuffer.h>
#include <media/stagefright/foundation/ADebug.h>
#include <media/stagefright/DataSource.h>
#include <media/stagefright/MediaBuffer.h>
@@ -65,24 +66,28 @@ private:
OggSource &operator=(const OggSource &);
};
-struct MyVorbisExtractor {
- MyVorbisExtractor(const sp<DataSource> &source);
- virtual ~MyVorbisExtractor();
+struct MyOggExtractor {
+ MyOggExtractor(
+ const sp<DataSource> &source,
+ const char *mimeType,
+ size_t numHeaders,
+ int64_t seekPreRollUs);
+ virtual ~MyOggExtractor();
sp<MetaData> getFormat() const;
// Returns an approximate bitrate in bits per second.
- uint64_t approxBitrate();
+ virtual uint64_t approxBitrate() const = 0;
status_t seekToTime(int64_t timeUs);
status_t seekToOffset(off64_t offset);
- status_t readNextPacket(MediaBuffer **buffer, bool conf);
+ virtual status_t readNextPacket(MediaBuffer **buffer) = 0;
status_t init();
sp<MetaData> getFileMetaData() { return mFileMeta; }
-private:
+protected:
struct Page {
uint64_t mGranulePosition;
int32_t mPrevPacketSize;
@@ -102,12 +107,17 @@ private:
sp<DataSource> mSource;
off64_t mOffset;
Page mCurrentPage;
+ uint64_t mCurGranulePosition;
uint64_t mPrevGranulePosition;
size_t mCurrentPageSize;
bool mFirstPacketInPage;
uint64_t mCurrentPageSamples;
size_t mNextLaceIndex;
+ const char *mMimeType;
+ size_t mNumHeaders;
+ int64_t mSeekPreRollUs;
+
off64_t mFirstDataOffset;
vorbis_info mVi;
@@ -121,10 +131,26 @@ private:
ssize_t readPage(off64_t offset, Page *page);
status_t findNextPage(off64_t startOffset, off64_t *pageOffset);
- status_t verifyHeader(
- MediaBuffer *buffer, uint8_t type);
+ virtual int64_t getTimeUsOfGranule(uint64_t granulePos) const = 0;
+
+ // Extract codec format, metadata tags, and various codec specific data;
+ // the format and CSD's are required to setup the decoders for the enclosed media content.
+ //
+ // Valid values for `type` are:
+ // 1 - bitstream identification header
+ // 3 - comment header
+ // 5 - codec setup header (Vorbis only)
+ virtual status_t verifyHeader(MediaBuffer *buffer, uint8_t type) = 0;
+
+ // Read the next ogg packet from the underlying data source; optionally
+ // calculate the timestamp for the output packet whilst pretending
+ // that we are parsing an Ogg Vorbis stream.
+ //
+ // *buffer is NULL'ed out immediately upon entry, and if successful a new buffer is allocated;
+ // clients are responsible for releasing the original buffer.
+ status_t _readNextPacket(MediaBuffer **buffer, bool calcVorbisTimestamp);
- int32_t packetBlockSize(MediaBuffer *buffer);
+ int32_t getPacketBlockSize(MediaBuffer *buffer);
void parseFileMetaData();
@@ -132,8 +158,59 @@ private:
void buildTableOfContents();
- MyVorbisExtractor(const MyVorbisExtractor &);
- MyVorbisExtractor &operator=(const MyVorbisExtractor &);
+ MyOggExtractor(const MyOggExtractor &);
+ MyOggExtractor &operator=(const MyOggExtractor &);
+};
+
+struct MyVorbisExtractor : public MyOggExtractor {
+ MyVorbisExtractor(const sp<DataSource> &source)
+ : MyOggExtractor(source,
+ MEDIA_MIMETYPE_AUDIO_VORBIS,
+ /* numHeaders */ 3,
+ /* seekPreRollUs */ 0) {
+ }
+
+ virtual uint64_t approxBitrate() const;
+
+ virtual status_t readNextPacket(MediaBuffer **buffer) {
+ return _readNextPacket(buffer, /* calcVorbisTimestamp = */ true);
+ }
+
+protected:
+ virtual int64_t getTimeUsOfGranule(uint64_t granulePos) const {
+ return granulePos * 1000000ll / mVi.rate;
+ }
+
+ virtual status_t verifyHeader(MediaBuffer *buffer, uint8_t type);
+};
+
+struct MyOpusExtractor : public MyOggExtractor {
+ static const int32_t kOpusSampleRate = 48000;
+ static const int64_t kOpusSeekPreRollUs = 80000; // 80 ms
+
+ MyOpusExtractor(const sp<DataSource> &source)
+ : MyOggExtractor(source, MEDIA_MIMETYPE_AUDIO_OPUS, /*numHeaders*/ 2, kOpusSeekPreRollUs),
+ mChannelCount(0),
+ mCodecDelay(0) {
+ }
+
+ virtual uint64_t approxBitrate() const {
+ return 0;
+ }
+
+ virtual status_t readNextPacket(MediaBuffer **buffer);
+
+protected:
+ virtual int64_t getTimeUsOfGranule(uint64_t granulePos) const;
+ virtual status_t verifyHeader(MediaBuffer *buffer, uint8_t type);
+
+private:
+ status_t verifyOpusHeader(MediaBuffer *buffer);
+ status_t verifyOpusComments(MediaBuffer *buffer);
+ uint32_t getNumSamplesInPacket(MediaBuffer *buffer) const;
+
+ uint8_t mChannelCount;
+ uint16_t mCodecDelay;
};
static void extractAlbumArt(
@@ -179,13 +256,14 @@ status_t OggSource::read(
int64_t seekTimeUs;
ReadOptions::SeekMode mode;
if (options && options->getSeekTo(&seekTimeUs, &mode)) {
- if (mExtractor->mImpl->seekToTime(seekTimeUs) != OK) {
- return ERROR_END_OF_STREAM;
+ status_t err = mExtractor->mImpl->seekToTime(seekTimeUs);
+ if (err != OK) {
+ return err;
}
}
MediaBuffer *packet;
- status_t err = mExtractor->mImpl->readNextPacket(&packet, /* conf = */ false);
+ status_t err = mExtractor->mImpl->readNextPacket(&packet);
if (err != OK) {
return err;
@@ -209,14 +287,22 @@ status_t OggSource::read(
////////////////////////////////////////////////////////////////////////////////
-MyVorbisExtractor::MyVorbisExtractor(const sp<DataSource> &source)
+MyOggExtractor::MyOggExtractor(
+ const sp<DataSource> &source,
+ const char *mimeType,
+ size_t numHeaders,
+ int64_t seekPreRollUs)
: mSource(source),
mOffset(0),
+ mCurGranulePosition(0),
mPrevGranulePosition(0),
mCurrentPageSize(0),
mFirstPacketInPage(true),
mCurrentPageSamples(0),
mNextLaceIndex(0),
+ mMimeType(mimeType),
+ mNumHeaders(numHeaders),
+ mSeekPreRollUs(seekPreRollUs),
mFirstDataOffset(-1) {
mCurrentPage.mNumSegments = 0;
@@ -224,16 +310,16 @@ MyVorbisExtractor::MyVorbisExtractor(const sp<DataSource> &source)
vorbis_comment_init(&mVc);
}
-MyVorbisExtractor::~MyVorbisExtractor() {
+MyOggExtractor::~MyOggExtractor() {
vorbis_comment_clear(&mVc);
vorbis_info_clear(&mVi);
}
-sp<MetaData> MyVorbisExtractor::getFormat() const {
+sp<MetaData> MyOggExtractor::getFormat() const {
return mMeta;
}
-status_t MyVorbisExtractor::findNextPage(
+status_t MyOggExtractor::findNextPage(
off64_t startOffset, off64_t *pageOffset) {
*pageOffset = startOffset;
@@ -264,7 +350,7 @@ status_t MyVorbisExtractor::findNextPage(
// it (if any) and return its granule position.
// To do this we back up from the "current" page's offset until we find any
// page preceding it and then scan forward to just before the current page.
-status_t MyVorbisExtractor::findPrevGranulePosition(
+status_t MyOggExtractor::findPrevGranulePosition(
off64_t pageOffset, uint64_t *granulePos) {
*granulePos = 0;
@@ -280,7 +366,11 @@ status_t MyVorbisExtractor::findPrevGranulePosition(
ALOGV("backing up %lld bytes", (long long)(pageOffset - prevGuess));
status_t err = findNextPage(prevGuess, &prevPageOffset);
- if (err != OK) {
+ if (err == ERROR_END_OF_STREAM) {
+ // We are at the last page and didn't back off enough;
+ // back off 5000 bytes more and try again.
+ continue;
+ } else if (err != OK) {
return err;
}
@@ -314,11 +404,20 @@ status_t MyVorbisExtractor::findPrevGranulePosition(
}
}
-status_t MyVorbisExtractor::seekToTime(int64_t timeUs) {
+status_t MyOggExtractor::seekToTime(int64_t timeUs) {
+ timeUs -= mSeekPreRollUs;
+ if (timeUs < 0) {
+ timeUs = 0;
+ }
+
if (mTableOfContents.isEmpty()) {
// Perform approximate seeking based on avg. bitrate.
+ uint64_t bps = approxBitrate();
+ if (bps <= 0) {
+ return INVALID_OPERATION;
+ }
- off64_t pos = timeUs * approxBitrate() / 8000000ll;
+ off64_t pos = timeUs * bps / 8000000ll;
ALOGV("seeking to offset %lld", (long long)pos);
return seekToOffset(pos);
@@ -353,7 +452,7 @@ status_t MyVorbisExtractor::seekToTime(int64_t timeUs) {
return seekToOffset(entry.mPageOffset);
}
-status_t MyVorbisExtractor::seekToOffset(off64_t offset) {
+status_t MyOggExtractor::seekToOffset(off64_t offset) {
if (mFirstDataOffset >= 0 && offset < mFirstDataOffset) {
// Once we know where the actual audio data starts (past the headers)
// don't ever seek to anywhere before that.
@@ -386,7 +485,7 @@ status_t MyVorbisExtractor::seekToOffset(off64_t offset) {
return OK;
}
-ssize_t MyVorbisExtractor::readPage(off64_t offset, Page *page) {
+ssize_t MyOggExtractor::readPage(off64_t offset, Page *page) {
uint8_t header[27];
ssize_t n;
if ((n = mSource->readAt(offset, header, sizeof(header)))
@@ -457,7 +556,75 @@ ssize_t MyVorbisExtractor::readPage(off64_t offset, Page *page) {
return sizeof(header) + page->mNumSegments + totalSize;
}
-status_t MyVorbisExtractor::readNextPacket(MediaBuffer **out, bool conf) {
+status_t MyOpusExtractor::readNextPacket(MediaBuffer **out) {
+ status_t err = _readNextPacket(out, /* calcVorbisTimestamp = */false);
+ if (err != OK) {
+ return err;
+ }
+
+ int32_t currentPageSamples;
+ // Calculate timestamps by accumulating durations starting from the first sample of a page;
+ // We assume that we only seek to page boundaries.
+ if ((*out)->meta_data()->findInt32(kKeyValidSamples, &currentPageSamples)) {
+ // first packet in page
+ mCurGranulePosition = mCurrentPage.mGranulePosition - currentPageSamples;
+ }
+
+ int64_t timeUs = getTimeUsOfGranule(mCurGranulePosition);
+ (*out)->meta_data()->setInt64(kKeyTime, timeUs);
+
+ uint32_t frames = getNumSamplesInPacket(*out);
+ mCurGranulePosition += frames;
+ return OK;
+}
+
+uint32_t MyOpusExtractor::getNumSamplesInPacket(MediaBuffer *buffer) const {
+ if (buffer == NULL || buffer->range_length() < 1) {
+ return 0;
+ }
+
+ uint8_t *data = (uint8_t *)buffer->data() + buffer->range_offset();
+ uint8_t toc = data[0];
+ uint8_t config = (toc >> 3) & 0x1f;
+ uint32_t frameSizesUs[] = {
+ 10000, 20000, 40000, 60000, // 0...3
+ 10000, 20000, 40000, 60000, // 4...7
+ 10000, 20000, 40000, 60000, // 8...11
+ 10000, 20000, // 12...13
+ 10000, 20000, // 14...15
+ 2500, 5000, 10000, 20000, // 16...19
+ 2500, 5000, 10000, 20000, // 20...23
+ 2500, 5000, 10000, 20000, // 24...27
+ 2500, 5000, 10000, 20000 // 28...31
+ };
+ uint32_t frameSizeUs = frameSizesUs[config];
+
+ uint32_t numFrames;
+ uint8_t c = toc & 3;
+ switch (c) {
+ case 0:
+ numFrames = 1;
+ break;
+ case 1:
+ case 2:
+ numFrames = 2;
+ break;
+ case 3:
+ if (buffer->range_length() < 3) {
+ numFrames = 0;
+ } else {
+ numFrames = data[2] & 0x3f;
+ }
+ break;
+ default:
+ TRESPASS();
+ }
+
+ uint32_t numSamples = frameSizeUs * numFrames * kOpusSampleRate / 1000000;
+ return numSamples;
+}
+
+status_t MyOggExtractor::_readNextPacket(MediaBuffer **out, bool calcVorbisTimestamp) {
*out = NULL;
MediaBuffer *buffer = NULL;
@@ -523,9 +690,8 @@ status_t MyVorbisExtractor::readNextPacket(MediaBuffer **out, bool conf) {
mFirstPacketInPage = false;
}
- // ignore timestamp for configuration packets
- if (!conf) {
- int32_t curBlockSize = packetBlockSize(buffer);
+ if (calcVorbisTimestamp) {
+ int32_t curBlockSize = getPacketBlockSize(buffer);
if (mCurrentPage.mPrevPacketSize < 0) {
mCurrentPage.mPrevPacketSize = curBlockSize;
mCurrentPage.mPrevPacketPos =
@@ -597,43 +763,24 @@ status_t MyVorbisExtractor::readNextPacket(MediaBuffer **out, bool conf) {
}
}
-status_t MyVorbisExtractor::init() {
+status_t MyOggExtractor::init() {
mMeta = new MetaData;
- mMeta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_VORBIS);
+ mMeta->setCString(kKeyMIMEType, mMimeType);
- MediaBuffer *packet;
status_t err;
- if ((err = readNextPacket(&packet, /* conf = */ true)) != OK) {
- return err;
- }
- ALOGV("read packet of size %zu\n", packet->range_length());
- err = verifyHeader(packet, 1);
- packet->release();
- packet = NULL;
- if (err != OK) {
- return err;
- }
-
- if ((err = readNextPacket(&packet, /* conf = */ true)) != OK) {
- return err;
- }
- ALOGV("read packet of size %zu\n", packet->range_length());
- err = verifyHeader(packet, 3);
- packet->release();
- packet = NULL;
- if (err != OK) {
- return err;
- }
-
- if ((err = readNextPacket(&packet, /* conf = */ true)) != OK) {
- return err;
- }
- ALOGV("read packet of size %zu\n", packet->range_length());
- err = verifyHeader(packet, 5);
- packet->release();
- packet = NULL;
- if (err != OK) {
- return err;
+ MediaBuffer *packet;
+ for (size_t i = 0; i < mNumHeaders; ++i) {
+ // ignore timestamp for configuration packets
+ if ((err = _readNextPacket(&packet, /* calcVorbisTimestamp = */ false)) != OK) {
+ return err;
+ }
+ ALOGV("read packet of size %zu\n", packet->range_length());
+ err = verifyHeader(packet, /* type = */ i * 2 + 1);
+ packet->release();
+ packet = NULL;
+ if (err != OK) {
+ return err;
+ }
}
mFirstDataOffset = mOffset + mCurrentPageSize;
@@ -649,7 +796,7 @@ status_t MyVorbisExtractor::init() {
// we can only approximate using avg. bitrate if seeking to
// the end is too expensive or impossible (live streaming).
- int64_t durationUs = lastGranulePosition * 1000000ll / mVi.rate;
+ int64_t durationUs = getTimeUsOfGranule(lastGranulePosition);
mMeta->setInt64(kKeyDuration, durationUs);
@@ -659,7 +806,7 @@ status_t MyVorbisExtractor::init() {
return OK;
}
-void MyVorbisExtractor::buildTableOfContents() {
+void MyOggExtractor::buildTableOfContents() {
off64_t offset = mFirstDataOffset;
Page page;
ssize_t pageSize;
@@ -670,7 +817,7 @@ void MyVorbisExtractor::buildTableOfContents() {
mTableOfContents.editItemAt(mTableOfContents.size() - 1);
entry.mPageOffset = offset;
- entry.mTimeUs = page.mGranulePosition * 1000000ll / mVi.rate;
+ entry.mTimeUs = getTimeUsOfGranule(page.mGranulePosition);
offset += (size_t)pageSize;
}
@@ -698,7 +845,7 @@ void MyVorbisExtractor::buildTableOfContents() {
}
}
-int32_t MyVorbisExtractor::packetBlockSize(MediaBuffer *buffer) {
+int32_t MyOggExtractor::getPacketBlockSize(MediaBuffer *buffer) {
const uint8_t *data =
(const uint8_t *)buffer->data() + buffer->range_offset();
@@ -727,6 +874,144 @@ int32_t MyVorbisExtractor::packetBlockSize(MediaBuffer *buffer) {
return vorbis_packet_blocksize(&mVi, &pack);
}
+int64_t MyOpusExtractor::getTimeUsOfGranule(uint64_t granulePos) const {
+ uint64_t pcmSamplePosition = 0;
+ if (granulePos > mCodecDelay) {
+ pcmSamplePosition = granulePos - mCodecDelay;
+ }
+ return pcmSamplePosition * 1000000ll / kOpusSampleRate;
+}
+
+status_t MyOpusExtractor::verifyHeader(MediaBuffer *buffer, uint8_t type) {
+ switch (type) {
+ // there are actually no header types defined in the Opus spec; we choose 1 and 3 to mean
+ // header and comments such that we can share code with MyVorbisExtractor.
+ case 1:
+ return verifyOpusHeader(buffer);
+ case 3:
+ return verifyOpusComments(buffer);
+ default:
+ return INVALID_OPERATION;
+ }
+}
+
+status_t MyOpusExtractor::verifyOpusHeader(MediaBuffer *buffer) {
+ const size_t kOpusHeaderSize = 19;
+ const uint8_t *data =
+ (const uint8_t *)buffer->data() + buffer->range_offset();
+
+ size_t size = buffer->range_length();
+
+ if (size < kOpusHeaderSize
+ || memcmp(data, "OpusHead", 8)
+ || /* version = */ data[8] != 1) {
+ return ERROR_MALFORMED;
+ }
+
+ mChannelCount = data[9];
+ mCodecDelay = U16LE_AT(&data[10]);
+
+ mMeta->setData(kKeyOpusHeader, 0, data, size);
+ mMeta->setInt32(kKeySampleRate, kOpusSampleRate);
+ mMeta->setInt32(kKeyChannelCount, mChannelCount);
+ mMeta->setInt64(kKeyOpusSeekPreRoll /* ns */, kOpusSeekPreRollUs * 1000 /* = 80 ms*/);
+ mMeta->setInt64(kKeyOpusCodecDelay /* ns */,
+ mCodecDelay /* sample/s */ * 1000000000 / kOpusSampleRate);
+
+ return OK;
+}
+
+status_t MyOpusExtractor::verifyOpusComments(MediaBuffer *buffer) {
+ // add artificial framing bit so we can reuse _vorbis_unpack_comment
+ int32_t commentSize = buffer->range_length() + 1;
+ sp<ABuffer> aBuf = new ABuffer(commentSize);
+ if (aBuf->capacity() <= buffer->range_length()) {
+ return ERROR_MALFORMED;
+ }
+
+ uint8_t* commentData = aBuf->data();
+ memcpy(commentData,
+ (uint8_t *)buffer->data() + buffer->range_offset(),
+ buffer->range_length());
+
+ ogg_buffer buf;
+ buf.data = commentData;
+ buf.size = commentSize;
+ buf.refcount = 1;
+ buf.ptr.owner = NULL;
+
+ ogg_reference ref;
+ ref.buffer = &buf;
+ ref.begin = 0;
+ ref.length = commentSize;
+ ref.next = NULL;
+
+ oggpack_buffer bits;
+ oggpack_readinit(&bits, &ref);
+
+ // skip 'OpusTags'
+ const char *OpusTags = "OpusTags";
+ const int32_t headerLen = strlen(OpusTags);
+ int32_t framingBitOffset = headerLen;
+ for (int i = 0; i < headerLen; ++i) {
+ char chr = oggpack_read(&bits, 8);
+ if (chr != OpusTags[i]) {
+ return ERROR_MALFORMED;
+ }
+ }
+
+ int32_t vendorLen = oggpack_read(&bits, 32);
+ framingBitOffset += 4;
+ if (vendorLen < 0 || vendorLen > commentSize - 8) {
+ return ERROR_MALFORMED;
+ }
+ // skip vendor string
+ framingBitOffset += vendorLen;
+ for (int i = 0; i < vendorLen; ++i) {
+ oggpack_read(&bits, 8);
+ }
+
+ int32_t n = oggpack_read(&bits, 32);
+ framingBitOffset += 4;
+ if (n < 0 || n > ((commentSize - oggpack_bytes(&bits)) >> 2)) {
+ return ERROR_MALFORMED;
+ }
+ for (int i = 0; i < n; ++i) {
+ int32_t len = oggpack_read(&bits, 32);
+ framingBitOffset += 4;
+ if (len < 0 || len > (commentSize - oggpack_bytes(&bits))) {
+ return ERROR_MALFORMED;
+ }
+ framingBitOffset += len;
+ for (int j = 0; j < len; ++j) {
+ oggpack_read(&bits, 8);
+ }
+ }
+ if (framingBitOffset < 0 || framingBitOffset >= commentSize) {
+ return ERROR_MALFORMED;
+ }
+ commentData[framingBitOffset] = 1;
+
+ buf.data = commentData + headerLen;
+ buf.size = commentSize - headerLen;
+ buf.refcount = 1;
+ buf.ptr.owner = NULL;
+
+ ref.buffer = &buf;
+ ref.begin = 0;
+ ref.length = commentSize - headerLen;
+ ref.next = NULL;
+
+ oggpack_readinit(&bits, &ref);
+ int err = _vorbis_unpack_comment(&mVc, &bits);
+ if (0 != err) {
+ return ERROR_MALFORMED;
+ }
+
+ parseFileMetaData();
+ return OK;
+}
+
status_t MyVorbisExtractor::verifyHeader(
MediaBuffer *buffer, uint8_t type) {
const uint8_t *data =
@@ -814,7 +1099,7 @@ status_t MyVorbisExtractor::verifyHeader(
return OK;
}
-uint64_t MyVorbisExtractor::approxBitrate() {
+uint64_t MyVorbisExtractor::approxBitrate() const {
if (mVi.bitrate_nominal != 0) {
return mVi.bitrate_nominal;
}
@@ -822,7 +1107,7 @@ uint64_t MyVorbisExtractor::approxBitrate() {
return (mVi.bitrate_lower + mVi.bitrate_upper) / 2;
}
-void MyVorbisExtractor::parseFileMetaData() {
+void MyOggExtractor::parseFileMetaData() {
mFileMeta = new MetaData;
mFileMeta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_CONTAINER_OGG);
@@ -1026,11 +1311,23 @@ OggExtractor::OggExtractor(const sp<DataSource> &source)
: mDataSource(source),
mInitCheck(NO_INIT),
mImpl(NULL) {
- mImpl = new MyVorbisExtractor(mDataSource);
- mInitCheck = mImpl->seekToOffset(0);
+ for (int i = 0; i < 2; ++i) {
+ if (mImpl != NULL) {
+ delete mImpl;
+ }
+ if (i == 0) {
+ mImpl = new MyVorbisExtractor(mDataSource);
+ } else {
+ mImpl = new MyOpusExtractor(mDataSource);
+ }
+ mInitCheck = mImpl->seekToOffset(0);
- if (mInitCheck == OK) {
- mInitCheck = mImpl->init();
+ if (mInitCheck == OK) {
+ mInitCheck = mImpl->init();
+ if (mInitCheck == OK) {
+ break;
+ }
+ }
}
}
diff --git a/media/libstagefright/include/OggExtractor.h b/media/libstagefright/include/OggExtractor.h
index e97c8cd..c647cbb 100644
--- a/media/libstagefright/include/OggExtractor.h
+++ b/media/libstagefright/include/OggExtractor.h
@@ -27,7 +27,7 @@ struct AMessage;
class DataSource;
class String8;
-struct MyVorbisExtractor;
+struct MyOggExtractor;
struct OggSource;
struct OggExtractor : public MediaExtractor {
@@ -48,7 +48,7 @@ private:
sp<DataSource> mDataSource;
status_t mInitCheck;
- MyVorbisExtractor *mImpl;
+ MyOggExtractor *mImpl;
OggExtractor(const OggExtractor &);
OggExtractor &operator=(const OggExtractor &);