status CAFFile::writeDescription()
{
Track *track = getTrack();
Tag desc("desc");
int64_t chunkLength = 32;
double sampleRate = track->f.sampleRate;
Tag formatID("lpcm");
uint32_t formatFlags = 0;
if (track->f.byteOrder == AF_BYTEORDER_LITTLEENDIAN)
formatFlags |= kCAFLinearPCMFormatFlagIsLittleEndian;
if (track->f.isFloat())
formatFlags |= kCAFLinearPCMFormatFlagIsFloat;
uint32_t bytesPerPacket = track->f.bytesPerFrame(false);
uint32_t framesPerPacket = 1;
uint32_t channelsPerFrame = track->f.channelCount;
uint32_t bitsPerChannel = track->f.sampleWidth;
if (track->f.compressionType == AF_COMPRESSION_G711_ULAW)
{
formatID = "ulaw";
formatFlags = 0;
bytesPerPacket = channelsPerFrame;
bitsPerChannel = 8;
}
else if (track->f.compressionType == AF_COMPRESSION_G711_ALAW)
{
formatID = "alaw";
formatFlags = 0;
bytesPerPacket = channelsPerFrame;
bitsPerChannel = 8;
}
else if (track->f.compressionType == AF_COMPRESSION_IMA)
{
formatID = "ima4";
formatFlags = 0;
bytesPerPacket = track->f.bytesPerPacket;
framesPerPacket = track->f.framesPerPacket;
bitsPerChannel = 16;
}
if (!writeTag(&desc) ||
!writeS64(&chunkLength) ||
!writeDouble(&sampleRate) ||
!writeTag(&formatID) ||
!writeU32(&formatFlags) ||
!writeU32(&bytesPerPacket) ||
!writeU32(&framesPerPacket) ||
!writeU32(&channelsPerFrame) ||
!writeU32(&bitsPerChannel))
return AF_FAIL;
return AF_SUCCEED;
}
void TestSerialization::testStreamWrite()
{
std::ostringstream os(std::ios_base::binary);
std::string data;
writeU8(os, 0x11);
writeU16(os, 0x2233);
writeU32(os, 0x44556677);
writeU64(os, 0x8899AABBCCDDEEFF);
writeS8(os, -128);
writeS16(os, 30000);
writeS32(os, -6);
writeS64(os, -43);
writeF1000(os, 53.53467f);
writeF1000(os, -300000.32f);
writeF1000(os, F1000_MIN);
writeF1000(os, F1000_MAX);
os << serializeString("foobar!");
data = os.str();
UASSERT(data.size() < sizeof(test_serialized_data));
UASSERT(!memcmp(&data[0], test_serialized_data, data.size()));
writeV2S16(os, v2s16(500, 500));
writeV3S16(os, v3s16(4207, 604, -30));
writeV2S32(os, v2s32(1920, 1080));
writeV3S32(os, v3s32(-400, 6400054, 290549855));
writeV2F1000(os, v2f(500.65661f, 350.34567f));
os << serializeWideString(L"\x02~woof~\x5455");
writeV3F1000(os, v3f(500, 10024.2f, -192.54f));
writeARGB8(os, video::SColor(255, 128, 50, 128));
os << serializeLongString("some longer string here");
writeU16(os, 0xF00D);
data = os.str();
UASSERT(data.size() == sizeof(test_serialized_data));
UASSERT(!memcmp(&data[0], test_serialized_data, sizeof(test_serialized_data)));
}
status CAFFile::writeData(bool update)
{
Track *track = getTrack();
if (m_dataOffset == -1)
m_dataOffset = m_fh->tell();
else
m_fh->seek(m_dataOffset, File::SeekFromBeginning);
Tag data("data");
int64_t dataLength = -1;
uint32_t editCount = 0;
if (update)
dataLength = track->data_size + 4;
if (!writeTag(&data) ||
!writeS64(&dataLength) ||
!writeU32(&editCount))
return AF_FAIL;
if (track->fpos_first_frame == 0)
track->fpos_first_frame = m_fh->tell();
return AF_SUCCEED;
}
