From c7fc37a3dab9bd1f96713649f351b5990e6316ff Mon Sep 17 00:00:00 2001
From: James Dong <jdong@google.com>
Date: Tue, 16 Nov 2010 14:04:54 -0800
Subject: 64-bit file size/offset support for media framework

Change-Id: I3452bc2c0f1d990cc67285df2fce1f9f86ff8e10
---
 media/libstagefright/MP3Extractor.cpp | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

(limited to 'media/libstagefright/MP3Extractor.cpp')

diff --git a/media/libstagefright/MP3Extractor.cpp b/media/libstagefright/MP3Extractor.cpp
index 84ced8f..9610f90 100644
--- a/media/libstagefright/MP3Extractor.cpp
+++ b/media/libstagefright/MP3Extractor.cpp
@@ -183,7 +183,7 @@ bool MP3Extractor::get_mp3_frame_size(
 
 static bool Resync(
         const sp<DataSource> &source, uint32_t match_header,
-        off_t *inout_pos, off_t *post_id3_pos, uint32_t *out_header) {
+        off64_t *inout_pos, off64_t *post_id3_pos, uint32_t *out_header) {
     if (post_id3_pos != NULL) {
         *post_id3_pos = 0;
     }
@@ -226,7 +226,7 @@ static bool Resync(
         }
     }
 
-    off_t pos = *inout_pos;
+    off64_t pos = *inout_pos;
     bool valid = false;
     do {
         if (pos >= *inout_pos + 128 * 1024) {
@@ -261,7 +261,7 @@ static bool Resync(
         // We found what looks like a valid frame,
         // now find its successors.
 
-        off_t test_pos = pos + frame_size;
+        off64_t test_pos = pos + frame_size;
 
         valid = true;
         for (int j = 0; j < 3; ++j) {
@@ -312,7 +312,7 @@ class MP3Source : public MediaSource {
 public:
     MP3Source(
             const sp<MetaData> &meta, const sp<DataSource> &source,
-            off_t first_frame_pos, uint32_t fixed_header,
+            off64_t first_frame_pos, uint32_t fixed_header,
             const sp<MP3Seeker> &seeker);
 
     virtual status_t start(MetaData *params = NULL);
@@ -329,9 +329,9 @@ protected:
 private:
     sp<MetaData> mMeta;
     sp<DataSource> mDataSource;
-    off_t mFirstFramePos;
+    off64_t mFirstFramePos;
     uint32_t mFixedHeader;
-    off_t mCurrentPos;
+    off64_t mCurrentPos;
     int64_t mCurrentTimeUs;
     bool mStarted;
     sp<MP3Seeker> mSeeker;
@@ -347,8 +347,8 @@ MP3Extractor::MP3Extractor(
       mDataSource(source),
       mFirstFramePos(-1),
       mFixedHeader(0) {
-    off_t pos = 0;
-    off_t post_id3_pos;
+    off64_t pos = 0;
+    off64_t post_id3_pos;
     uint32_t header;
     bool success;
 
@@ -361,9 +361,9 @@ MP3Extractor::MP3Extractor(
             && meta->findInt64("post-id3-offset", &meta_post_id3_offset)) {
         // The sniffer has already done all the hard work for us, simply
         // accept its judgement.
-        pos = (off_t)meta_offset;
+        pos = (off64_t)meta_offset;
         header = meta_header;
-        post_id3_pos = (off_t)meta_post_id3_offset;
+        post_id3_pos = (off64_t)meta_post_id3_offset;
 
         success = true;
     } else {
@@ -401,7 +401,7 @@ MP3Extractor::MP3Extractor(
     int64_t durationUs;
 
     if (mSeeker == NULL || !mSeeker->getDuration(&durationUs)) {
-        off_t fileSize;
+        off64_t fileSize;
         if (mDataSource->getSize(&fileSize) == OK) {
             durationUs = 8000LL * (fileSize - mFirstFramePos) / bitrate;
         } else {
@@ -442,7 +442,7 @@ sp<MetaData> MP3Extractor::getTrackMetaData(size_t index, uint32_t flags) {
 
 MP3Source::MP3Source(
         const sp<MetaData> &meta, const sp<DataSource> &source,
-        off_t first_frame_pos, uint32_t fixed_header,
+        off64_t first_frame_pos, uint32_t fixed_header,
         const sp<MP3Seeker> &seeker)
     : mMeta(meta),
       mDataSource(source),
@@ -545,7 +545,7 @@ status_t MP3Source::read(
         // Lost sync.
         LOGV("lost sync! header = 0x%08x, old header = 0x%08x\n", header, mFixedHeader);
 
-        off_t pos = mCurrentPos;
+        off64_t pos = mCurrentPos;
         if (!Resync(mDataSource, mFixedHeader, &pos, NULL, NULL)) {
             LOGE("Unable to resync. Signalling end of stream.");
 
@@ -651,8 +651,8 @@ sp<MetaData> MP3Extractor::getMetaData() {
 bool SniffMP3(
         const sp<DataSource> &source, String8 *mimeType,
         float *confidence, sp<AMessage> *meta) {
-    off_t pos = 0;
-    off_t post_id3_pos;
+    off64_t pos = 0;
+    off64_t post_id3_pos;
     uint32_t header;
     if (!Resync(source, 0, &pos, &post_id3_pos, &header)) {
         return false;
-- 
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