func constructReservoirFrame(dest []byte, header *mp3agic.FrameHeader, minResSize int, absStartSample int64) int {
// increase for 10-byte-header inclusion
minResSize += 10
h32 := header.getHeader32() | 0x00010000 // switch off CRC usage
fh2 := &FrameHeader{}
for bri := 1; bri <= 14; bri++ {
h32 = (h32 & 0xFFFF0FFF) + (bri << 12)
fh2.setHeader32(h32)
frameSize := fh2.getFrameSize()
sideInfoEnd := fh2.getSideInfoEnd()
mainDataBlockSize := frameSize - sideInfoEnd
if mainDataBlockSize >= minResSize {
dest[0] = byte(h32 >> 24)
dest[1] = byte(h32 >> 16)
dest[2] = byte(h32 >> 8)
dest[3] = byte(h32)
fill(dest[4:sideInfoEnd], 0)
fill(dest[sideInfoEnd:frameSize], 0x78)
// Arrays.fill(dest, 4, sideInfoEnd, (byte) 0);
// Arrays.fill(dest, sideInfoEnd, frameSize, (byte) 0x78);
copy(dest[sideInfoEnd:], []byte("PCUT"))
// dest[sideInfoEnd] = 0x50; // P
// dest[sideInfoEnd + 1] = 0x43; // C
// dest[sideInfoEnd + 2] = 0x55; // U
// dest[sideInfoEnd + 3] = 0x54; // T
copy(dest[sideInfoEnd+4:], []byte{
// revision 0
0,
// absolute sample start pos
byte(uint64(absStartSample) >> 32),
byte(uint64(absStartSample) >> 24),
byte(uint64(absStartSample) >> 16),
byte(uint64(absStartSample) >> 8),
byte(uint64(absStartSample))})
return frameSize
}
}
return -1
}
