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authorRachad <rachad@google.com>2014-02-12 01:40:59 +0000
committerAndroid (Google) Code Review <android-gerrit@google.com>2014-02-12 01:40:59 +0000
commitdc3b8b5ae07a6d7f42822b6215f4090b0ed185d2 (patch)
tree300262e5e7b5d614119f9cc33c5f35463d94bd35 /media/libstagefright/MPEG4Writer.cpp
parent90bdb98b8f8730074fcead63c33e8c3ce458b632 (diff)
parent1f1f2b1678fd0d038dfc501252dd2b65ecf10cae (diff)
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Merge "Increased recorded MP4 max file size to 4GB (more precisely 2^32-1 bytes -- FAT32 max file size)"
Diffstat (limited to 'media/libstagefright/MPEG4Writer.cpp')
-rw-r--r--media/libstagefright/MPEG4Writer.cpp8
1 files changed, 5 insertions, 3 deletions
diff --git a/media/libstagefright/MPEG4Writer.cpp b/media/libstagefright/MPEG4Writer.cpp
index 2e8d6b3..fb316f9 100644
--- a/media/libstagefright/MPEG4Writer.cpp
+++ b/media/libstagefright/MPEG4Writer.cpp
@@ -44,7 +44,9 @@
namespace android {
static const int64_t kMinStreamableFileSizeInBytes = 5 * 1024 * 1024;
-static const int64_t kMax32BitFileSize = 0x007fffffffLL;
+static const int64_t kMax32BitFileSize = 0x00ffffffffLL; // 2^32-1 : max FAT32
+ // filesystem file size
+ // used by most SD cards
static const uint8_t kNalUnitTypeSeqParamSet = 0x07;
static const uint8_t kNalUnitTypePicParamSet = 0x08;
static const int64_t kInitialDelayTimeUs = 700000LL;
@@ -861,11 +863,11 @@ status_t MPEG4Writer::reset() {
// Fix up the size of the 'mdat' chunk.
if (mUse32BitOffset) {
lseek64(mFd, mMdatOffset, SEEK_SET);
- int32_t size = htonl(static_cast<int32_t>(mOffset - mMdatOffset));
+ uint32_t size = htonl(static_cast<uint32_t>(mOffset - mMdatOffset));
::write(mFd, &size, 4);
} else {
lseek64(mFd, mMdatOffset + 8, SEEK_SET);
- int64_t size = mOffset - mMdatOffset;
+ uint64_t size = mOffset - mMdatOffset;
size = hton64(size);
::write(mFd, &size, 8);
}