if ( ASDCP_SUCCESS(result) )
result = m_HeaderPart.InitFromFile(m_File);
- // if this is a three partition file, go to the body
- // partition and read off the partition pack
- if ( m_HeaderPart.m_RIP.PairArray.size() == 3 )
+ if ( ASDCP_SUCCESS(result) )
{
- Array<RIP::Pair>::iterator r_i = m_HeaderPart.m_RIP.PairArray.begin();
- r_i++;
- m_File.Seek((*r_i).ByteOffset);
+ // if this is a three partition file, go to the body
+ // partition and read the partition pack
+ if ( m_HeaderPart.m_RIP.PairArray.size() > 2 )
+ {
+ Array<RIP::Pair>::iterator r_i = m_HeaderPart.m_RIP.PairArray.begin();
+ r_i++;
+ m_File.Seek((*r_i).ByteOffset);
- result = m_BodyPart.InitFromFile(m_File);
+ result = m_BodyPart.InitFromFile(m_File);
+ }
+
+ m_EssenceStart = m_File.Tell();
}
- m_EssenceStart = m_File.Tell();
- return RESULT_OK;
+ return result;
}
}
//
-class KLReader : public ASDCP::KLVPacket
+Result_t
+ASDCP::KLReader::ReadKLFromFile(Kumu::FileReader& Reader)
{
- ASDCP_NO_COPY_CONSTRUCT(KLReader);
- byte_t m_KeyBuf[32];
-
-public:
- KLReader() {}
- ~KLReader() {}
-
- inline const byte_t* Key() { return m_KeyBuf; }
- inline const ui64_t Length() { return m_ValueLength; }
- inline const ui64_t KLLength() { return m_KLLength; }
-
- Result_t ReadKLFromFile(Kumu::FileReader& Reader)
- {
- ui32_t read_count;
- ui32_t header_length = SMPTE_UL_LENGTH + MXF_BER_LENGTH;
- Result_t result = Reader.Read(m_KeyBuf, header_length, &read_count);
+ ui32_t read_count;
+ ui32_t header_length = SMPTE_UL_LENGTH + MXF_BER_LENGTH;
+ Result_t result = Reader.Read(m_KeyBuf, header_length, &read_count);
- if ( read_count != header_length )
- return RESULT_READFAIL;
+ if ( ASDCP_SUCCESS(result) )
+ {
+ if ( read_count != header_length )
+ result = RESULT_READFAIL;
- if ( ASDCP_SUCCESS(result) )
- result = InitFromBuffer(m_KeyBuf, header_length);
-
- return result;
- }
-};
+ else
+ result = InitFromBuffer(m_KeyBuf, header_length);
+ }
+ return result;
+}
// standard method of reading a plaintext or encrypted frame
Result_t
-ASDCP::h__Reader::ReadEKLVPacket(ui32_t FrameNum, ASDCP::FrameBuffer& FrameBuf,
- const byte_t* EssenceUL, AESDecContext* Ctx, HMACContext* HMAC)
+ASDCP::h__Reader::ReadEKLVFrame(ui32_t FrameNum, ASDCP::FrameBuffer& FrameBuf,
+ const byte_t* EssenceUL, AESDecContext* Ctx, HMACContext* HMAC)
{
// look up frame index node
IndexTableSegment::IndexEntry TmpEntry;
if ( ASDCP_FAILURE(m_FooterPart.Lookup(FrameNum, TmpEntry)) )
{
- DefaultLogSink().Error("Frame value out of range: %lu\n", FrameNum);
+ DefaultLogSink().Error("Frame value out of range: %u\n", FrameNum);
return RESULT_RANGE;
}
// get frame position and go read the frame's key and length
- Result_t result = RESULT_OK;
- KLReader Reader;
Kumu::fpos_t FilePosition = m_EssenceStart + TmpEntry.StreamOffset;
+ Result_t result = RESULT_OK;
if ( FilePosition != m_LastPosition )
{
result = m_File.Seek(FilePosition);
}
- if ( ASDCP_SUCCESS(result) )
- result = Reader.ReadKLFromFile(m_File);
+ if( ASDCP_SUCCESS(result) )
+ result = ReadEKLVPacket(FrameNum, FrameNum + 1, FrameBuf, EssenceUL, Ctx, HMAC);
+
+ return result;
+}
+
+
+Result_t
+ASDCP::h__Reader::ReadEKLVPacket(ui32_t FrameNum, ui32_t SequenceNum, ASDCP::FrameBuffer& FrameBuf,
+ const byte_t* EssenceUL, AESDecContext* Ctx, HMACContext* HMAC)
+{
+ KLReader Reader;
+ Result_t result = Reader.ReadKLFromFile(m_File);
if ( ASDCP_FAILURE(result) )
return result;
}
// read encrypted triplet value into internal buffer
- m_CtFrameBuf.Capacity(PacketLength);
+ assert(PacketLength <= 0xFFFFFFFFL);
+ m_CtFrameBuf.Capacity((ui32_t) PacketLength);
ui32_t read_count;
- result = m_File.Read(m_CtFrameBuf.Data(), PacketLength, &read_count);
+ result = m_File.Read(m_CtFrameBuf.Data(), (ui32_t) PacketLength,
+ &read_count);
if ( ASDCP_FAILURE(result) )
return result;
return RESULT_FORMAT;
}
- m_CtFrameBuf.Size(PacketLength);
+ m_CtFrameBuf.Size((ui32_t) PacketLength);
// should be const but mxflib::ReadBER is not
byte_t* ess_p = m_CtFrameBuf.Data();
if ( FrameBuf.Capacity() < SourceLength )
{
- DefaultLogSink().Error("FrameBuf.Capacity: %lu SourceLength: %lu\n", FrameBuf.Capacity(), SourceLength);
+ DefaultLogSink().Error("FrameBuf.Capacity: %u SourceLength: %u\n", FrameBuf.Capacity(), SourceLength);
return RESULT_SMALLBUF;
}
// read ESV length
if ( ! Kumu::read_test_BER(&ess_p, esv_length) )
{
- DefaultLogSink().Error("read_test_BER did not return %lu\n", esv_length);
+ DefaultLogSink().Error("read_test_BER did not return %u\n", esv_length);
return RESULT_FORMAT;
}
if ( ASDCP_SUCCESS(result) && m_Info.UsesHMAC && HMAC )
{
IntegrityPack IntPack;
- result = IntPack.TestValues(TmpWrapper, m_Info.AssetUUID, FrameNum + 1, HMAC);
+ result = IntPack.TestValues(TmpWrapper, m_Info.AssetUUID, SequenceNum, HMAC);
}
}
else // return ciphertext to caller
{
if ( FrameBuf.Capacity() < tmp_len )
- return RESULT_SMALLBUF;
+ {
+ char intbuf[IntBufferLen];
+ DefaultLogSink().Error("FrameBuf.Capacity: %u FrameLength: %s\n",
+ FrameBuf.Capacity(), ui64sz(PacketLength, intbuf));
+ return RESULT_SMALLBUF;
+ }
memcpy(FrameBuf.Data(), ess_p, tmp_len);
FrameBuf.Size(tmp_len);
if ( FrameBuf.Capacity() < PacketLength )
{
char intbuf[IntBufferLen];
- DefaultLogSink().Error("FrameBuf.Capacity: %lu FrameLength: %s\n",
+ DefaultLogSink().Error("FrameBuf.Capacity: %u FrameLength: %s\n",
FrameBuf.Capacity(), ui64sz(PacketLength, intbuf));
return RESULT_SMALLBUF;
}
// read the data into the supplied buffer
ui32_t read_count;
- result = m_File.Read(FrameBuf.Data(), PacketLength, &read_count);
+ assert(PacketLength <= 0xFFFFFFFFL);
+ result = m_File.Read(FrameBuf.Data(), (ui32_t) PacketLength, &read_count);
if ( ASDCP_FAILURE(result) )
return result;
projects / asdcplib.git / blobdiff