2 Copyright (c) 2004-2015, John Hurst
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27 /*! \file PCMParserList.cpp
28 \version $Id: PCMParserList.cpp,v 1.12 2015/02/19 19:06:57 jhurst Exp $
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)
77 if ( m_p < ( FB.RoData() + FB.Size() ) )
79 memcpy(p, m_p, m_SampleSize);
85 return RESULT_ENDOFFILE;
90 ASDCP::ParserInstance::ReadFrame()
92 Result_t result = Parser.ReadFrame(FB);
93 m_p = ASDCP_SUCCESS(result) ? FB.RoData() : 0;
98 //------------------------------------------------------------------------------------------
103 ASDCP::PCMParserList::PCMParserList() : m_ChannelCount(0)
107 ASDCP::PCMParserList::~PCMParserList()
118 ASDCP::PCMParserList::OpenRead(ui32_t argc, const char** argv, const Rational& PictureRate)
120 ASDCP_TEST_NULL(argv);
121 PathList_t TmpFileList;
123 for ( ui32_t i = 0; i < argc; ++i )
125 ASDCP_TEST_NULL(argv[i]);
126 TmpFileList.push_back(argv[i]);
129 return OpenRead(TmpFileList, PictureRate);
134 ASDCP::PCMParserList::OpenRead(const Kumu::PathList_t& argv, const Rational& PictureRate)
136 Result_t result = RESULT_OK;
137 PathList_t::iterator fi;
138 Kumu::PathList_t file_list;
140 if ( argv.size() == 1 && PathIsDirectory(argv.front()) )
143 char name_buf[MaxFilePath];
144 result = Dir.Open(argv.front().c_str());
146 if ( KM_SUCCESS(result) )
147 result = Dir.GetNext(name_buf);
149 while ( KM_SUCCESS(result) )
151 if ( name_buf[0] != '.' ) // no hidden files
153 std::string tmp_path = argv.front() + "/" + name_buf;
154 file_list.push_back(tmp_path);
157 result = Dir.GetNext(name_buf);
160 if ( result == RESULT_ENDOFFILE )
171 for ( fi = file_list.begin(); KM_SUCCESS(result) && fi != file_list.end(); ++fi )
173 mem_ptr<ParserInstance> I = new ParserInstance;
174 result = I->OpenRead(fi->c_str(), PictureRate);
176 if ( ASDCP_SUCCESS(result) )
178 if ( fi == file_list.begin() )
184 if ( I->ADesc.AudioSamplingRate != m_ADesc.AudioSamplingRate )
186 DefaultLogSink().Error("AudioSamplingRate mismatch in PCM parser list.");
187 return RESULT_FORMAT;
190 if ( I->ADesc.QuantizationBits != m_ADesc.QuantizationBits )
192 DefaultLogSink().Error("QuantizationBits mismatch in PCM parser list.");
193 return RESULT_FORMAT;
196 if ( I->ADesc.ContainerDuration < m_ADesc.ContainerDuration )
197 m_ADesc.ContainerDuration = I->ADesc.ContainerDuration;
199 m_ADesc.BlockAlign += I->ADesc.BlockAlign;
202 m_ChannelCount += I->ADesc.ChannelCount;
205 if ( ASDCP_SUCCESS(result) )
206 result = I->FB.Capacity(PCM::CalcFrameBufferSize(m_ADesc));
208 if ( ASDCP_SUCCESS(result) )
215 if ( ASDCP_SUCCESS(result) )
217 m_ADesc.ChannelCount = m_ChannelCount;
218 m_ADesc.AvgBps = (ui32_t)(ceil(m_ADesc.AudioSamplingRate.Quotient()) * m_ADesc.BlockAlign);
230 ASDCP::PCMParserList::FillAudioDescriptor(PCM::AudioDescriptor& ADesc) const
238 ASDCP::PCMParserList::Reset()
240 Result_t result = RESULT_OK;
241 PCMParserList::iterator self_i;
243 for ( self_i = begin(); self_i != end() && ASDCP_SUCCESS(result) ; self_i++ )
244 result = (*self_i)->Parser.Reset();
252 ASDCP::PCMParserList::ReadFrame(PCM::FrameBuffer& OutFB)
254 Result_t result = RESULT_OK;
258 return front()->Parser.ReadFrame(OutFB);
261 PCMParserList::iterator self_i;
262 assert(PCM::CalcFrameBufferSize(m_ADesc) <= OutFB.Capacity());
264 for ( self_i = begin(); self_i != end() && ASDCP_SUCCESS(result) ; self_i++ )
266 result = (*self_i)->ReadFrame();
269 if ( ASDCP_SUCCESS(result) )
271 byte_t* Out_p = OutFB.Data();
272 byte_t* End_p = Out_p + OutFB.Capacity();
273 ui64_t total_sample_bytes = 0;
275 while ( Out_p < End_p && ASDCP_SUCCESS(result) )
279 while ( self_i != end() && ASDCP_SUCCESS(result) )
281 result = (*self_i)->PutSample(Out_p);
283 if ( ASDCP_SUCCESS(result) )
285 Out_p += (*self_i)->SampleSize();
286 total_sample_bytes += (*self_i)->SampleSize();
292 OutFB.Size(total_sample_bytes);
294 if ( result == RESULT_ENDOFFILE )
304 // end PCMParserList.cpp