2 Copyright (c) 2004-2014, John Hurst
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27 /*! \file PCMParserList.cpp
29 \brief Read WAV file(s), multiplex multiple PCM frame buffers into one
32 #include <PCMParserList.h>
33 #include <KM_fileio.h>
37 using namespace ASDCP;
41 ASDCP::ParserInstance::ParserInstance() : m_p(0), m_SampleSize(0)
45 ASDCP::ParserInstance::~ParserInstance()
49 // PCM::CalcSampleSize(ADesc);
51 ASDCP::ParserInstance::OpenRead(const std::string& filename, const Rational& PictureRate)
53 Result_t result = Parser.OpenRead(filename, PictureRate);
55 if ( ASDCP_SUCCESS(result) )
56 result = Parser.FillAudioDescriptor(ADesc);
58 if ( ASDCP_SUCCESS(result) )
60 ADesc.EditRate = PictureRate;
61 m_SampleSize = PCM::CalcSampleSize(ADesc);
62 result = FB.Capacity(PCM::CalcFrameBufferSize(ADesc));
69 // deposit the next available sample into the given framebuffer
71 ASDCP::ParserInstance::PutSample(byte_t* p)
75 memcpy(p, m_p, m_SampleSize);
83 ASDCP::ParserInstance::ReadFrame()
85 Result_t result = Parser.ReadFrame(FB);
86 m_p = ASDCP_SUCCESS(result) ? FB.RoData() : 0;
91 //------------------------------------------------------------------------------------------
96 ASDCP::PCMParserList::PCMParserList() : m_ChannelCount(0)
100 ASDCP::PCMParserList::~PCMParserList()
111 ASDCP::PCMParserList::OpenRead(ui32_t argc, const char** argv, const Rational& PictureRate)
113 ASDCP_TEST_NULL(argv);
114 PathList_t TmpFileList;
116 for ( ui32_t i = 0; i < argc; ++i )
118 ASDCP_TEST_NULL(argv[i]);
119 TmpFileList.push_back(argv[i]);
122 return OpenRead(TmpFileList, PictureRate);
127 ASDCP::PCMParserList::OpenRead(const Kumu::PathList_t& argv, const Rational& PictureRate)
129 Result_t result = RESULT_OK;
130 PathList_t::iterator fi;
131 Kumu::PathList_t file_list;
133 if ( argv.size() == 1 && PathIsDirectory(argv.front()) )
136 char name_buf[MaxFilePath];
137 result = Dir.Open(argv.front().c_str());
139 if ( KM_SUCCESS(result) )
140 result = Dir.GetNext(name_buf);
142 while ( KM_SUCCESS(result) )
144 if ( name_buf[0] != '.' ) // no hidden files
146 std::string tmp_path = argv.front() + "/" + name_buf;
147 file_list.push_back(tmp_path);
150 result = Dir.GetNext(name_buf);
153 if ( result == RESULT_ENDOFFILE )
164 for ( fi = file_list.begin(); KM_SUCCESS(result) && fi != file_list.end(); ++fi )
166 mem_ptr<ParserInstance> I = new ParserInstance;
167 result = I->OpenRead(fi->c_str(), PictureRate);
169 if ( ASDCP_SUCCESS(result) )
171 if ( fi == file_list.begin() )
177 if ( I->ADesc.AudioSamplingRate != m_ADesc.AudioSamplingRate )
179 DefaultLogSink().Error("AudioSamplingRate mismatch in PCM parser list.");
180 return RESULT_FORMAT;
183 if ( I->ADesc.QuantizationBits != m_ADesc.QuantizationBits )
185 DefaultLogSink().Error("QuantizationBits mismatch in PCM parser list.");
186 return RESULT_FORMAT;
189 if ( I->ADesc.ContainerDuration < m_ADesc.ContainerDuration )
190 m_ADesc.ContainerDuration = I->ADesc.ContainerDuration;
192 m_ADesc.BlockAlign += I->ADesc.BlockAlign;
195 m_ChannelCount += I->ADesc.ChannelCount;
198 if ( ASDCP_SUCCESS(result) )
199 result = I->FB.Capacity(PCM::CalcFrameBufferSize(m_ADesc));
201 if ( ASDCP_SUCCESS(result) )
208 if ( ASDCP_SUCCESS(result) )
210 m_ADesc.ChannelCount = m_ChannelCount;
211 m_ADesc.AvgBps = (ui32_t)(ceil(m_ADesc.AudioSamplingRate.Quotient()) * m_ADesc.BlockAlign);
223 ASDCP::PCMParserList::FillAudioDescriptor(PCM::AudioDescriptor& ADesc) const
231 ASDCP::PCMParserList::Reset()
233 Result_t result = RESULT_OK;
234 PCMParserList::iterator self_i;
236 for ( self_i = begin(); self_i != end() && ASDCP_SUCCESS(result) ; self_i++ )
237 result = (*self_i)->Parser.Reset();
245 ASDCP::PCMParserList::ReadFrame(PCM::FrameBuffer& OutFB)
247 Result_t result = RESULT_OK;
250 return front()->Parser.ReadFrame(OutFB);
252 PCMParserList::iterator self_i;
253 assert(PCM::CalcFrameBufferSize(m_ADesc) <= OutFB.Capacity());
255 for ( self_i = begin(); self_i != end() && ASDCP_SUCCESS(result) ; self_i++ )
256 result = (*self_i)->ReadFrame();
258 if ( ASDCP_SUCCESS(result) )
260 OutFB.Size(PCM::CalcFrameBufferSize(m_ADesc));
262 // ui32_t sample_size = (PCM::CalcSampleSize(m_ADesc));
263 byte_t* Out_p = OutFB.Data();
264 byte_t* End_p = Out_p + OutFB.Size();
266 while ( Out_p < End_p && ASDCP_SUCCESS(result) )
270 while ( self_i != end() && ASDCP_SUCCESS(result) )
272 result = (*self_i)->PutSample(Out_p);
273 Out_p += (*self_i)->SampleSize();
278 assert(Out_p == End_p);
285 // end PCMParserList.cpp