2 Copyright (c) 2005-2012, John Hurst
5 Redistribution and use in source and binary forms, with or without
6 modification, are permitted provided that the following conditions
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9 notice, this list of conditions and the following disclaimer.
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11 notice, this list of conditions and the following disclaimer in the
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13 3. The name of the author may not be used to endorse or promote products
14 derived from this software without specific prior written permission.
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29 \brief MXF index segment objects
33 const ui32_t kl_length = ASDCP::SMPTE_UL_LENGTH + ASDCP::MXF_BER_LENGTH;
37 ASDCP::MXF::IndexTableSegment::IndexTableSegment(const Dictionary*& d) :
38 InterchangeObject(d), m_Dict(d), RtFileOffset(0), RtEntryOffset(0),
39 IndexStartPosition(0), IndexDuration(0), EditUnitByteCount(0),
40 IndexSID(129), BodySID(1), SliceCount(0), PosTableCount(0)
43 m_UL = m_Dict->ul(MDD_IndexTableSegment);
47 ASDCP::MXF::IndexTableSegment::~IndexTableSegment()
53 ASDCP::MXF::IndexTableSegment::Copy(const IndexTableSegment& rhs)
55 InterchangeObject::Copy(rhs);
56 IndexEditRate = rhs.IndexEditRate;
57 IndexStartPosition = rhs.IndexStartPosition;
58 IndexDuration = rhs.IndexDuration;
59 EditUnitByteCount = rhs.EditUnitByteCount;
60 IndexSID = rhs.IndexSID;
61 BodySID = rhs.BodySID;
62 SliceCount = rhs.SliceCount;
63 PosTableCount = rhs.PosTableCount;
64 DeltaEntryArray = rhs.DeltaEntryArray;
65 IndexEntryArray = rhs.IndexEntryArray;
70 ASDCP::MXF::IndexTableSegment::InitFromTLVSet(TLVReader& TLVSet)
72 Result_t result = InterchangeObject::InitFromTLVSet(TLVSet);
73 if ( ASDCP_SUCCESS(result) ) result = TLVSet.ReadObject(OBJ_READ_ARGS(IndexTableSegmentBase, IndexEditRate));
74 if ( ASDCP_SUCCESS(result) ) result = TLVSet.ReadUi64(OBJ_READ_ARGS(IndexTableSegmentBase, IndexStartPosition));
75 if ( ASDCP_SUCCESS(result) ) result = TLVSet.ReadUi64(OBJ_READ_ARGS(IndexTableSegmentBase, IndexDuration));
76 if ( ASDCP_SUCCESS(result) ) result = TLVSet.ReadUi32(OBJ_READ_ARGS(IndexTableSegmentBase, EditUnitByteCount));
77 if ( ASDCP_SUCCESS(result) ) result = TLVSet.ReadUi32(OBJ_READ_ARGS(IndexTableSegmentBase, IndexSID));
78 if ( ASDCP_SUCCESS(result) ) result = TLVSet.ReadUi32(OBJ_READ_ARGS(EssenceContainerData, BodySID));
79 if ( ASDCP_SUCCESS(result) ) result = TLVSet.ReadUi8(OBJ_READ_ARGS(IndexTableSegmentBase, SliceCount));
80 if ( ASDCP_SUCCESS(result) ) result = TLVSet.ReadUi8(OBJ_READ_ARGS(IndexTableSegmentBase, PosTableCount));
81 if ( ASDCP_SUCCESS(result) ) result = TLVSet.ReadObject(OBJ_READ_ARGS(IndexTableSegment, DeltaEntryArray));
83 if ( ASDCP_SUCCESS(result) )
85 bool rc = TLVSet.FindTL(m_Dict->Type(MDD_IndexTableSegment_IndexEntryArray));
89 ui32_t item_count, item_size;
90 ui32_t const decoder_item_size = IndexEntryArray.ItemSize();
92 if ( TLVSet.ReadUi32BE(&item_count) )
94 if ( TLVSet.ReadUi32BE(&item_size) )
96 for ( ui32_t i = 0; i < item_count && rc; ++i )
99 rc = tmp_item.Unarchive(&TLVSet);
103 IndexEntryArray.push_back(tmp_item);
105 if ( decoder_item_size < item_size )
107 TLVSet.SkipOffset(item_size - decoder_item_size);
115 result = rc ? RESULT_OK : RESULT_FALSE;
123 ASDCP::MXF::IndexTableSegment::WriteToTLVSet(TLVWriter& TLVSet)
125 Result_t result = InterchangeObject::WriteToTLVSet(TLVSet);
126 if ( ASDCP_SUCCESS(result) ) result = TLVSet.WriteObject(OBJ_WRITE_ARGS(IndexTableSegmentBase, IndexEditRate));
127 if ( ASDCP_SUCCESS(result) ) result = TLVSet.WriteUi64(OBJ_WRITE_ARGS(IndexTableSegmentBase, IndexStartPosition));
128 if ( ASDCP_SUCCESS(result) ) result = TLVSet.WriteUi64(OBJ_WRITE_ARGS(IndexTableSegmentBase, IndexDuration));
129 if ( ASDCP_SUCCESS(result) ) result = TLVSet.WriteUi32(OBJ_WRITE_ARGS(IndexTableSegmentBase, EditUnitByteCount));
130 if ( ASDCP_SUCCESS(result) ) result = TLVSet.WriteUi32(OBJ_WRITE_ARGS(IndexTableSegmentBase, IndexSID));
131 if ( ASDCP_SUCCESS(result) ) result = TLVSet.WriteUi32(OBJ_WRITE_ARGS(EssenceContainerData, BodySID));
132 if ( ASDCP_SUCCESS(result) ) result = TLVSet.WriteUi8(OBJ_WRITE_ARGS(IndexTableSegmentBase, SliceCount));
133 if ( ASDCP_SUCCESS(result) ) result = TLVSet.WriteUi8(OBJ_WRITE_ARGS(IndexTableSegmentBase, PosTableCount));
134 if ( ASDCP_SUCCESS(result) ) result = TLVSet.WriteObject(OBJ_WRITE_ARGS(IndexTableSegment, DeltaEntryArray));
135 if ( ASDCP_SUCCESS(result) ) result = TLVSet.WriteObject(OBJ_WRITE_ARGS(IndexTableSegment, IndexEntryArray));
141 ASDCP::MXF::IndexTableSegment::InitFromBuffer(const byte_t* p, ui32_t l)
143 return InterchangeObject::InitFromBuffer(p, l);
148 ASDCP::MXF::IndexTableSegment::WriteToBuffer(ASDCP::FrameBuffer& Buffer)
150 return InterchangeObject::WriteToBuffer(Buffer);
155 ASDCP::MXF::IndexTableSegment::Dump(FILE* stream)
157 char identbuf[IdentBufferLen];
162 InterchangeObject::Dump(stream);
163 fprintf(stream, " IndexEditRate = %s\n", IndexEditRate.EncodeString(identbuf, IdentBufferLen));
164 fprintf(stream, " IndexStartPosition = %s\n", i64sz(IndexStartPosition, identbuf));
165 fprintf(stream, " IndexDuration = %s\n", i64sz(IndexDuration, identbuf));
166 fprintf(stream, " EditUnitByteCount = %u\n", EditUnitByteCount);
167 fprintf(stream, " IndexSID = %u\n", IndexSID);
168 fprintf(stream, " BodySID = %u\n", BodySID);
169 fprintf(stream, " SliceCount = %hhu\n", SliceCount);
170 fprintf(stream, " PosTableCount = %hhu\n", PosTableCount);
172 fprintf(stream, " DeltaEntryArray:\n"); DeltaEntryArray.Dump(stream);
174 if ( IndexEntryArray.empty() )
176 fprintf(stream, " IndexEntryArray: NO ENTRIES\n");
178 else if ( IndexEntryArray.size() < 1000 )
180 fprintf(stream, " IndexEntryArray:\n");
181 IndexEntryArray.Dump(stream);
185 fprintf(stream, " IndexEntryArray: %zu entries\n", IndexEntryArray.size());
189 //------------------------------------------------------------------------------------------
194 ASDCP::MXF::IndexTableSegment::DeltaEntry::EncodeString(char* str_buf, ui32_t buf_len) const
196 snprintf(str_buf, buf_len, "%3d %-3hhu %-3u", PosTableIndex, Slice, ElementData);
202 ASDCP::MXF::IndexTableSegment::DeltaEntry::Unarchive(Kumu::MemIOReader* Reader)
204 if ( ! Reader->ReadUi8((ui8_t*)&PosTableIndex) ) return false;
205 if ( ! Reader->ReadUi8(&Slice) ) return false;
206 if ( ! Reader->ReadUi32BE(&ElementData) ) return false;
212 ASDCP::MXF::IndexTableSegment::DeltaEntry::Archive(Kumu::MemIOWriter* Writer) const
214 if ( ! Writer->WriteUi8((ui8_t)PosTableIndex) ) return false;
215 if ( ! Writer->WriteUi8(Slice) ) return false;
216 if ( ! Writer->WriteUi32BE(ElementData) ) return false;
220 //------------------------------------------------------------------------------------------
224 // Bit 7: Random Access
225 // Bit 6: Sequence Header
226 // Bit 5: forward prediction flag
227 // Bit 4: backward prediction flag
229 // 00== I frame (no prediction)
230 // 10== P frame(forward prediction from previous frame)
231 // 01== B frame (backward prediction from future frame)
232 // 11== B frame (forward & backward prediction)
233 // Bits 0-3: reserved [RP210 Flags to indicate coding of elements in this edit unit]
237 ASDCP::MXF::IndexTableSegment::IndexEntry::EncodeString(char* str_buf, ui32_t buf_len) const
239 char intbuf[IntBufferLen];
242 txt_flags[0] = ( (Flags & 0x80) != 0 ) ? 'r' : ' ';
243 txt_flags[1] = ( (Flags & 0x40) != 0 ) ? 's' : ' ';
244 txt_flags[2] = ( (Flags & 0x20) != 0 ) ? 'f' : ' ';
245 txt_flags[3] = ( (Flags & 0x10) != 0 ) ? 'b' : ' ';
246 txt_flags[4] = ( (Flags & 0x0f) == 3 ) ? 'B' : ( (Flags & 0x0f) == 2 ) ? 'P' : 'I';
249 snprintf(str_buf, buf_len, "%3i %-3hhu %s %s",
250 TemporalOffset, KeyFrameOffset, txt_flags,
251 i64sz(StreamOffset, intbuf));
258 ASDCP::MXF::IndexTableSegment::IndexEntry::Unarchive(Kumu::MemIOReader* Reader)
260 if ( ! Reader->ReadUi8((ui8_t*)&TemporalOffset) ) return false;
261 if ( ! Reader->ReadUi8((ui8_t*)&KeyFrameOffset) ) return false;
262 if ( ! Reader->ReadUi8(&Flags) ) return false;
263 if ( ! Reader->ReadUi64BE(&StreamOffset) ) return false;
269 ASDCP::MXF::IndexTableSegment::IndexEntry::Archive(Kumu::MemIOWriter* Writer) const
271 if ( ! Writer->WriteUi8((ui8_t)TemporalOffset) ) return false;
272 if ( ! Writer->WriteUi8((ui8_t)KeyFrameOffset) ) return false;
273 if ( ! Writer->WriteUi8(Flags) ) return false;
274 if ( ! Writer->WriteUi64BE(StreamOffset) ) return false;