Merge "Speed up id3v2 unsynchronization"

        }

        if (flags & 2) {

            // Unsynchronization added.

            // This file has "unsynchronization", so we have to replace occurrences

            // of 0xff 0x00 with just 0xff in order to get the real data.

            size_t readOffset = offset + 11;

            size_t writeOffset = offset + 11;

            for (size_t i = 0; i + 1 < dataSize; ++i) {

                if (mData[offset + 10 + i] == 0xff

                        && mData[offset + 11 + i] == 0x00) {

                    memmove(&mData[offset + 11 + i], &mData[offset + 12 + i],

                            mSize - offset - 12 - i);

                if (mData[readOffset - 1] == 0xff

                        && mData[readOffset] == 0x00) {

                    ++readOffset;

                    --mSize;

                    --dataSize;

                }

                mData[writeOffset++] = mData[readOffset++];

            }

            // move the remaining data following this frame

            memmove(&mData[writeOffset], &mData[readOffset], oldSize - readOffset);

            flags &= ~2;

        }