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authorRachad <rachad@google.com>2014-02-10 16:54:46 -0800
committerRachad <rachad@google.com>2014-02-10 16:54:46 -0800
commit1f1f2b1678fd0d038dfc501252dd2b65ecf10cae (patch)
tree9353febe438b9785fa64c9ba0aa7c2b305e4a864 /media
parentb82a9f105f89d6b3684c9f626918042bd8977912 (diff)
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Increased recorded MP4 max file size to 4GB
(more precisely 2^32-1 bytes -- FAT32 max file size) bug: 11039801 Change-Id: I6169f798c59d123d02d5fd7afa3b9e645ebdb598
Diffstat (limited to 'media')
-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 0fa3b2d..763e19d 100644
--- a/media/libstagefright/MPEG4Writer.cpp
+++ b/media/libstagefright/MPEG4Writer.cpp
@@ -43,7 +43,9 @@
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;
@@ -860,11 +862,11 @@ 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);
}