File_Pcm.cpp

/* Copyright (c) MediaArea.net SARL. All Rights Reserved. * * Use of this source code is governed by a BSD-style license that can * be found in the License.html file in the root of the source tree. */ //--------------------------------------------------------------------------- // Pre-compilation #include "MediaInfo/PreComp.h" #ifdef __BORLANDC__ #pragma hdrstop #endif //--------------------------------------------------------------------------- //--------------------------------------------------------------------------- #include "MediaInfo/Setup.h" //--------------------------------------------------------------------------- //--------------------------------------------------------------------------- #if defined(MEDIAINFO_PCM_YES) //--------------------------------------------------------------------------- //--------------------------------------------------------------------------- #include "MediaInfo/Audio/File_Pcm.h" #if MEDIAINFO_DEMUX #include "MediaInfo/MediaInfo_Config_MediaInfo.h" #endif //MEDIAINFO_DEMUX //--------------------------------------------------------------------------- namespace MediaInfoLib { //*************************************************************************** // Infos //*************************************************************************** //--------------------------------------------------------------------------- static const char* Smpte_St0302_ChannelsPositions(int8u Channels) { switch (Channels) { case 2 : return "Front: L R"; //2 channels case 4 : return "Front: L C R, LFE"; //4 channels case 6 : return "Front: L C R, Side: L R, LFE"; //6 channels case 8 : return "Front: L C R, Side: L R, Back: L R, LFE"; //8 channels default : return ""; } } //--------------------------------------------------------------------------- static const char* Smpte_St0302_ChannelsPositions2(int8u Channels) { switch (Channels) { case 2 : return "2/0/0.0"; //2 channels case 4 : return "3/0/0.1"; //4 channels case 6 : return "3/2/0.1"; //6 channels case 8 : return "3/2/2.1"; //8 channels default : return ""; } } //*************************************************************************** // Constructor/Destructor //*************************************************************************** //--------------------------------------------------------------------------- File_Pcm::File_Pcm() :File_Pcm_Base() { //Configuration ParserName="PCM"; #if MEDIAINFO_EVENTS ParserIDs[0]=MediaInfo_Parser_Pcm; StreamIDs_Width[0]=0; #endif //MEDIAINFO_EVENTS #if MEDIAINFO_TRACE Trace_Layers_Update(8); //Stream #endif //MEDIAINFO_TRACE StreamSource=IsStream; PTS_DTS_Needed=true; //In Frame_Count_Valid=16; BitDepth=0; BitDepth_Significant=0; Channels=0; SamplingRate=0; Sign='\0'; } //*************************************************************************** // Streams management //*************************************************************************** //--------------------------------------------------------------------------- void File_Pcm::Streams_Fill() { if (Count_Get(Stream_Audio)==0) { Stream_Prepare(Stream_Audio); Fill(Stream_Audio, 0, Audio_Format, "PCM"); Fill(Stream_Audio, 0, Audio_Codec, "PCM"); } //Microsoft WaveFormatEx to Waveformat if (Codec.size() == 36 && Codec.To_UTF8().find("0000")==0 && Codec.To_UTF8().substr(8)=="-0000-0010-8000-00AA00389B71") { Codec.resize(8); Codec.TrimLeft(__T('0')); } //Filling Ztring Firm, ITU; if (Codec==__T("EVOB")) {Firm=__T(""); Endianness='B'; Sign='S';} //PCM Signed 16 bits Big Endian, Interleavement is for 2 samples*2 channels L0-1/L0-0/R0-1/R0-0/L1-1/L1-0/R1-1/R1-0/L0-2/R0-2/L1-2/R1-2, http://wiki.multimedia.cx/index.php?title=PCM else if (Codec==__T("VOB")) {Firm=__T(""); Endianness='B'; Sign='S';} //PCM Signed 16 bits Big Endian, Interleavement is for 2 samples*2 channels L0-1/L0-0/R0-1/R0-0/L1-1/L1-0/R1-1/R1-0/L0-2/R0-2/L1-2/R1-2, http://wiki.multimedia.cx/index.php?title=PCM else if (Codec==__T("M2TS")) {Firm=__T(""); Endianness='B'; Sign='S';} //PCM Signed Big Endian else if (Codec==__T("A_PCM/FLOAT/IEEE")) {Firm=__T(""); Endianness='L'; Sign='F';} else if (Codec==__T("A_PCM/INT/BIG")) {Firm=__T(""); Endianness='B';} else if (Codec==__T("A_PCM/INT/LIT")) {Firm=__T(""); Endianness='L';} else if (Codec==__T("A_PCM/INT/LITTLE")) {Firm=__T(""); Endianness='L';} else if (Codec==__T("A_PCM/INT/FLOAT")) {Firm=__T(""); Endianness='B'; Sign='F';} else if (Codec==__T("fl32")) { if (!Endianness) Endianness='B'; if (!Sign) Sign='F'; BitDepth=32;} else if (Codec==__T("fl64")) { if (!Endianness) Endianness='B'; if (!Sign) Sign='F'; BitDepth=64;} else if (Codec==__T("in24")) { if (!Endianness) Endianness='B'; if (!Sign) Sign='U'; BitDepth=24;} else if (Codec==__T("in32")) { if (!Endianness) Endianness='B'; if (!Sign) Sign='U'; BitDepth=32;} else if (Codec==__T("raw ")) { if (!Endianness) Endianness='L'; Sign='U';} else if (Codec==__T("twos")) { Endianness='B'; Sign='S';} else if (Codec==__T("sowt")) { Endianness='L'; Sign='S';} else if (Codec==__T("lpcm")) { if (!Endianness) Endianness='B'; if (!Sign) Sign='S';} else if (Codec==__T("SWF ADPCM")) {Firm=__T("SWF");} else if (Codec==__T("1")) { if (BitDepth) { if (BitDepth>8) { Endianness='L'; Sign='S';} else { Sign='U';} } } else if (Codec==__T("2")) {Firm=__T("Microsoft");} else if (Codec==__T("3")) { Endianness='F';} else if (Codec==__T("10")) {Firm=__T("OKI");} else if (Codec==__T("11")) {Firm=__T("Intel");} else if (Codec==__T("12")) {Firm=__T("Mediaspace");} else if (Codec==__T("13")) {Firm=__T("Sierra");} else if (Codec==__T("14")) {Firm=__T("Antex");} else if (Codec==__T("17")) {Firm=__T("Dialogic");} else if (Codec==__T("18")) {Firm=__T("Mediavision");} else if (Codec==__T("20")) {Firm=__T("Yamaha");} else if (Codec==__T("33")) {Firm=__T("Antex");} else if (Codec==__T("36")) {Firm=__T("DSP Solution");} else if (Codec==__T("38")) {Firm=__T("Natural MicroSystems");} else if (Codec==__T("39")) {Firm=__T("Crystal Semiconductor");} else if (Codec==__T("3B")) {Firm=__T("Rockwell");} else if (Codec==__T("40")) {Firm=__T("Antex Electronics");} else if (Codec==__T("42")) {Firm=__T("IBM");} else if (Codec==__T("45")) {Firm=__T("Microsoft"); ITU=__T("G.726");} else if (Codec==__T("64")) {Firm=__T("Apicom"); ITU=__T("G.726");} else if (Codec==__T("65")) {Firm=__T("Apicom"); ITU=__T("G.722");} else if (Codec==__T("85")) {Firm=__T("DataFusion Systems"); ITU=__T("G.726");} else if (Codec==__T("8B")) {Firm=__T("Infocom"); ITU=__T("G.721");} else if (Codec==__T("97")) {Firm=__T("ZyXEL");} else if (Codec==__T("100")) {Firm=__T("Rhetorex");} else if (Codec==__T("125")) {Firm=__T("Sanyo");} else if (Codec==__T("140")) {Firm=__T("Dictaphone"); ITU=__T("G.726");} else if (Codec==__T("170")) {Firm=__T("Unisys");} else if (Codec==__T("175")) {Firm=__T("SyCom"); ITU=__T("G.726");} else if (Codec==__T("178")) {Firm=__T("Knownledge");} else if (Codec==__T("200")) {Firm=__T("Creative");} else if (Codec==__T("210")) {Firm=__T("Uher");} else if (Codec==__T("285")) {Firm=__T("Norcom Voice Systems");} else if (Codec==__T("1001")) {Firm=__T("Olivetti");} else if (Codec==__T("1C03")) {Firm=__T("Lucent"); ITU=__T("G.723");} else if (Codec==__T("1C0C")) {Firm=__T("Lucent"); ITU=__T("G.723");} else if (Codec==__T("4243")) {ITU=__T("G.726");} else if (Codec==__T("A105")) {ITU=__T("G.726");} else if (Codec==__T("A107")) {ITU=__T("G.726");} //Format Fill(Stream_Audio, 0, Audio_Codec_String, "PCM"); Fill(Stream_Audio, 0, Audio_Codec_Family, "PCM"); Fill(Stream_Audio, 0, Audio_BitRate_Mode, "CBR"); //SamplingRate if (SamplingRate) Fill(Stream_Audio, 0, Audio_SamplingRate, SamplingRate); //Firm Fill(Stream_Audio, 0, Audio_Format_Settings, Firm); Fill(Stream_Audio, 0, Audio_Format_Settings_Firm, Firm); Fill(Stream_Audio, 0, Audio_Codec_Settings, Firm); Fill(Stream_Audio, 0, Audio_Codec_Settings_Firm, Firm); //Endianess const char* Value; switch (Endianness) { case 'B': Value="Big"; break; case 'L': Value="Little"; break; default : Value=""; } Fill(Stream_Audio, 0, Audio_Format_Settings, Value); Fill(Stream_Audio, 0, Audio_Format_Settings_Endianness, Value); Fill(Stream_Audio, 0, Audio_Codec_Settings, Value); Fill(Stream_Audio, 0, Audio_Codec_Settings_Endianness, Value); //Sign switch (Sign) { case 'S': Value="Signed"; break; case 'U': Value="Unsigned"; break; default : Value=""; } Fill(Stream_Audio, 0, Audio_Format_Settings, Value); Fill(Stream_Audio, 0, Audio_Format_Settings_Sign, Value); Fill(Stream_Audio, 0, Audio_Codec_Settings, Value); Fill(Stream_Audio, 0, Audio_Codec_Settings_Sign, Value); //ITU Fill(Stream_Audio, 0, Audio_Format_Settings, ITU); Fill(Stream_Audio, 0, Audio_Format_Settings_ITU, ITU); Fill(Stream_Audio, 0, Audio_Codec_Settings, ITU); Fill(Stream_Audio, 0, Audio_Codec_Settings_ITU, ITU); //BitDepth if (BitDepth_Significant) { Fill(Stream_Audio, 0, Audio_BitDepth, BitDepth_Significant); Fill(Stream_Audio, 0, Audio_BitDepth_Stored, BitDepth); } else if (BitDepth) Fill(Stream_Audio, 0, Audio_BitDepth, BitDepth); //Channels if (Channels) Fill(Stream_Audio, 0, Audio_Channel_s_, Channels); //Bit rate if (SamplingRate && BitDepth && Channels) Fill(Stream_Audio, 0, Audio_BitRate, SamplingRate*BitDepth*Channels); //ChannelsPositions if (Codec==__T("SMPTE ST 337")) { Fill(Stream_Audio, 0, Audio_ChannelPositions, Smpte_St0302_ChannelsPositions(Channels)); Fill(Stream_Audio, 0, Audio_ChannelPositions_String2, Smpte_St0302_ChannelsPositions2(Channels)); } } //--------------------------------------------------------------------------- void File_Pcm::Streams_Finish() { //No frames in PCM! Frame_Count=(int64u)-1; Frame_Count_NotParsedIncluded=(int64u)-1; } //*************************************************************************** // Buffer - Global //*************************************************************************** //--------------------------------------------------------------------------- void File_Pcm::Read_Buffer_Continue() { #if MEDIAINFO_DEMUX if (Demux_UnpacketizeContainer && !Frame_Count && !Status[IsAccepted]) { if (Demux_Items.size()<Frame_Count_Valid) { demux_item Item; Item.DTS=FrameInfo_Next.Buffer_Offset_End!=(int64u)-1?FrameInfo_Next.DTS:FrameInfo.DTS; Item.DUR=FrameInfo_Next.Buffer_Offset_End!=(int64u)-1?FrameInfo_Next.DUR:FrameInfo.DUR; Item.Size=Buffer_Size; for (size_t i=0; i<Demux_Items.size(); i++) Item.Size-=Demux_Items[i].Size; Demux_Items.push_back(Item); } if (Demux_Items.size()<Frame_Count_Valid) { Element_WaitForMoreData(); return; } Accept(); } #endif //MEDIAINFO_DEMUX } //*************************************************************************** // Buffer - File header //*************************************************************************** //--------------------------------------------------------------------------- bool File_Pcm::FileHeader_Begin() { if (!Frame_Count_Valid) { Accept(); Finish(); } return true; } //*************************************************************************** // Buffer - Per element //*************************************************************************** //--------------------------------------------------------------------------- void File_Pcm::Header_Parse() { //Filling Header_Fill_Code(0, "Block"); #if MEDIAINFO_DEMUX if (!Demux_Items.empty()) { FrameInfo.DTS=Demux_Items[0].DTS; FrameInfo.DUR=Demux_Items[0].DUR; Element_Size=Demux_Items[0].Size; if (Frame_Count_NotParsedIncluded!=(int64u)-1 && Frame_Count_NotParsedIncluded>=Demux_Items.size()-1) Frame_Count_NotParsedIncluded-=Demux_Items.size()-1; Demux_Items.pop_front(); } #endif //MEDIAINFO_DEMUX if (BitDepth*Channels/8) { int64u Size=(Element_Size/(BitDepth*Channels/8))*(BitDepth*Channels/8); //A complete sample if (Element_Size && Size==0) { Element_WaitForMoreData(); return; } Header_Fill_Size(Size); } else Header_Fill_Size(Element_Size); // Unknown sample size } //--------------------------------------------------------------------------- void File_Pcm::Data_Parse() { #if MEDIAINFO_DEMUX FrameInfo.PTS=FrameInfo.DTS; Demux_random_access=true; Element_Code=(int64u)-1; if (BitDepth==20 && Endianness=='L' && Config->Demux_PCM_20bitTo16bit_Get()) { size_t Info_Offset=(size_t)Element_Size; const int8u* Info=Buffer+Buffer_Offset; size_t Info2_Size=Info_Offset*4/5; int8u* Info2=new int8u[Info2_Size]; size_t Info2_Pos=0; size_t Info_Pos=0; //Removing bits 3-0 (Little endian) // Dest : 20LE / L1L0 L3L2 R0L4 R2R1 R4R3 // Source: L2L1 L4L3 R2R1 R4R2 while (Info_Pos+5<=Info_Offset) { Info2[Info2_Pos ] =(Info[Info_Pos+1]<<4 ) | (Info[Info_Pos+0]>>4 ); Info2[Info2_Pos+1] =(Info[Info_Pos+2]<<4 ) | (Info[Info_Pos+1]>>4 ); Info2[Info2_Pos+2] = Info[Info_Pos+3] ; Info2[Info2_Pos+3] = Info[Info_Pos+4] ; Info2_Pos+=4; Info_Pos+=5; } Demux(Info2, Info2_Pos, ContentType_MainStream); delete[] Info2; } else if (BitDepth==20 && Endianness=='L' && Config->Demux_PCM_20bitTo24bit_Get()) { size_t Info_Offset=(size_t)Element_Size; const int8u* Info=Buffer+Buffer_Offset; size_t Info2_Size=Info_Offset*6/5; int8u* Info2=new int8u[Info2_Size]; size_t Info2_Pos=0; size_t Info_Pos=0; //Padding bits 3-0 (Little endian) // Dest : 20LE / L1L0 L3L2 R0L4 R2R1 R4R3 // Source: L0XX L2L1 L4L3 R0XX R2R1 R4R2 while (Info_Pos+5<=Info_Offset) { Info2[Info2_Pos ] = Info[Info_Pos+0]<<4 ; Info2[Info2_Pos+1] =(Info[Info_Pos+1]<<4 ) | (Info[Info_Pos+0]>>4 ); Info2[Info2_Pos+2] =(Info[Info_Pos+2]<<4 ) | (Info[Info_Pos+1]>>4 ); Info2[Info2_Pos+3] = Info[Info_Pos+2]&0xF0 ; Info2[Info2_Pos+4] = Info[Info_Pos+3] ; Info2[Info2_Pos+5] = Info[Info_Pos+4] ; Info2_Pos+=6; Info_Pos+=5; } Demux(Info2, Info2_Pos, ContentType_MainStream); delete[] Info2; } else { Demux(Buffer+Buffer_Offset, (size_t)Element_Size, ContentType_MainStream); } if (Frame_Count_NotParsedIncluded!=(int64u)-1 && !Demux_Items.empty()) Frame_Count_NotParsedIncluded+=Demux_Items.size()-1; #endif //MEDIAINFO_DEMUX //Parsing Skip_XX(Element_Size, "Data"); //It is impossible to detect... Default is no detection, only filling { if (BitDepth && Channels && SamplingRate) FrameInfo.DUR=Element_Size*1000000000*8/BitDepth/Channels/SamplingRate; if (FrameInfo.DUR!=(int64u)-1) { if (FrameInfo.DTS!=(int64u)-1) FrameInfo.DTS+=FrameInfo.DUR; if (FrameInfo.PTS!=(int64u)-1) FrameInfo.PTS+=FrameInfo.DUR; } else { FrameInfo.DTS=(int64u)-1; FrameInfo.PTS=(int64u)-1; } Frame_Count++; if (Frame_Count_NotParsedIncluded!=(int64u)-1) Frame_Count_NotParsedIncluded++; } if ((!Status[IsAccepted] && Frame_Count>=Frame_Count_Valid) || File_Offset+Buffer_Size>=File_Size) { Accept(); Fill(); } } //*************************************************************************** // C++ //*************************************************************************** } //NameSpace #endif //MEDIAINFO_PCM_YES

↑ V793 It is odd that the result of the 'BitDepth * Channels / 8' statement is a part of the condition. Perhaps, this statement should have been compared with something else.