2 Copyright (c) 2004-2009, 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 char* filename, Rational& PictureRate)
53 ASDCP_TEST_NULL_STR(filename);
55 Result_t result = Parser.OpenRead(filename, PictureRate);
57 if ( ASDCP_SUCCESS(result) )
58 result = Parser.FillAudioDescriptor(ADesc);
60 if ( ASDCP_SUCCESS(result) )
62 ADesc.EditRate = PictureRate;
63 m_SampleSize = PCM::CalcSampleSize(ADesc);
64 result = FB.Capacity(PCM::CalcFrameBufferSize(ADesc));
71 // deposit the next available sample into the given framebuffer
73 ASDCP::ParserInstance::PutSample(byte_t* p)
77 memcpy(p, m_p, m_SampleSize);
85 ASDCP::ParserInstance::ReadFrame()
87 Result_t result = Parser.ReadFrame(FB);
88 m_p = ASDCP_SUCCESS(result) ? FB.RoData() : 0;
93 //------------------------------------------------------------------------------------------
98 ASDCP::PCMParserList::PCMParserList() : m_ChannelCount(0)
102 ASDCP::PCMParserList::~PCMParserList()
114 ASDCP::PCMParserList::OpenRead(ui32_t argc, const char** argv, Rational& PictureRate)
116 ASDCP_TEST_NULL_STR(argv);
117 Result_t result = RESULT_OK;
118 PathList_t::iterator fi;
119 PathList_t TmpFileList;
121 if ( argc == 1 && PathIsDirectory(argv[0]) )
124 char name_buf[MaxFilePath];
125 result = Dir.Open(argv[0]);
127 if ( KM_SUCCESS(result) )
128 result = Dir.GetNext(name_buf);
130 while ( KM_SUCCESS(result) )
132 if ( name_buf[0] != '.' ) // no hidden files
134 std::string tmp_path = std::string(argv[0]) + "/" + name_buf;
135 TmpFileList.push_back(tmp_path);
138 result = Dir.GetNext(name_buf);
141 if ( result == RESULT_ENDOFFILE )
149 for ( ui32_t i = 0; i < argc; ++i )
150 TmpFileList.push_back(argv[i]);
153 for ( fi = TmpFileList.begin(); KM_SUCCESS(result) && fi != TmpFileList.end(); fi++ )
155 mem_ptr<ParserInstance> I = new ParserInstance;
156 result = I->OpenRead(fi->c_str(), PictureRate);
158 if ( ASDCP_SUCCESS(result) )
160 if ( fi == TmpFileList.begin() )
166 if ( I->ADesc.AudioSamplingRate != m_ADesc.AudioSamplingRate )
168 DefaultLogSink().Error("AudioSamplingRate mismatch in PCM parser list.");
169 return RESULT_FORMAT;
172 if ( I->ADesc.QuantizationBits != m_ADesc.QuantizationBits )
174 DefaultLogSink().Error("QuantizationBits mismatch in PCM parser list.");
175 return RESULT_FORMAT;
178 if ( I->ADesc.ContainerDuration < m_ADesc.ContainerDuration )
179 m_ADesc.ContainerDuration = I->ADesc.ContainerDuration;
181 m_ADesc.BlockAlign += I->ADesc.BlockAlign;
184 m_ChannelCount += I->ADesc.ChannelCount;
187 if ( ASDCP_SUCCESS(result) )
188 result = I->FB.Capacity(PCM::CalcFrameBufferSize(m_ADesc));
190 if ( ASDCP_SUCCESS(result) )
197 if ( ASDCP_SUCCESS(result) )
199 m_ADesc.ChannelCount = m_ChannelCount;
200 m_ADesc.AvgBps = ceil(m_ADesc.AudioSamplingRate.Quotient()) * m_ADesc.BlockAlign;
212 ASDCP::PCMParserList::FillAudioDescriptor(PCM::AudioDescriptor& ADesc) const
220 ASDCP::PCMParserList::Reset()
222 Result_t result = RESULT_OK;
223 PCMParserList::iterator self_i;
225 for ( self_i = begin(); self_i != end() && ASDCP_SUCCESS(result) ; self_i++ )
226 result = (*self_i)->Parser.Reset();
234 ASDCP::PCMParserList::ReadFrame(PCM::FrameBuffer& OutFB)
236 Result_t result = RESULT_OK;
239 return front()->Parser.ReadFrame(OutFB);
241 PCMParserList::iterator self_i;
242 assert(PCM::CalcFrameBufferSize(m_ADesc) <= OutFB.Capacity());
244 for ( self_i = begin(); self_i != end() && ASDCP_SUCCESS(result) ; self_i++ )
245 result = (*self_i)->ReadFrame();
247 if ( ASDCP_SUCCESS(result) )
249 OutFB.Size(PCM::CalcFrameBufferSize(m_ADesc));
251 // ui32_t sample_size = (PCM::CalcSampleSize(m_ADesc));
252 byte_t* Out_p = OutFB.Data();
253 byte_t* End_p = Out_p + OutFB.Size();
255 while ( Out_p < End_p && ASDCP_SUCCESS(result) )
259 while ( self_i != end() && ASDCP_SUCCESS(result) )
261 result = (*self_i)->PutSample(Out_p);
262 Out_p += (*self_i)->SampleSize();
267 assert(Out_p == End_p);
274 // end PCMParserList.cpp