132 lines
6.9 KiB
C++
132 lines
6.9 KiB
C++
/// \file ts_packet.h
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/// Holds all headers for the TS Namespace.
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#pragma once
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#include <string>
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#include <cmath>
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#include <stdint.h>//for uint64_t
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#include <iostream>
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#include <cstdio>
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#include <cstdlib>
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#include <algorithm>
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#include "dtsc.h"
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/// Holds all TS processing related code.
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namespace TS {
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/// Class for reading and writing TS Streams
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class Packet{
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public:
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Packet();
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~Packet();
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bool FromString(std::string & Data);
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void PID(int NewPID);
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int PID();
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void ContinuityCounter(int NewContinuity);
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int ContinuityCounter();
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void Clear();
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void PCR(int64_t NewVal);
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int64_t PCR();
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void AdaptationField(int NewVal);
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int AdaptationField();
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int AdaptationFieldLen();
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void DefaultPAT();
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void DefaultPMT();
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int UnitStart();
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void UnitStart(int NewVal);
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int RandomAccess();
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void RandomAccess(int NewVal);
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int BytesFree();
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std::string toPrettyString(size_t indent = 0);
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const char* ToString();
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void PESVideoLeadIn(unsigned int NewLen, long long unsigned int PTS = 1);
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void PESAudioLeadIn(unsigned int NewLen, uint64_t PTS = 0);
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static void PESAudioLeadIn(std::string & toSend, long long unsigned int PTS);
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static void PESVideoLeadIn(std::string & toSend, long long unsigned int PTS);
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static std::string & getPESAudioLeadIn(unsigned int NewLen, long long unsigned int PTS);
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static std::string & getPESVideoLeadIn(unsigned int NewLen, long long unsigned int PTS);
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void FillFree(std::string & PackageData);
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int FillFree(const char* PackageData, int maxLen);
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unsigned int AddStuffing(int NumBytes);
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private:
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//int Free;
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std::string strBuf;
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//char Buffer[188];///< The actual data
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};
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//TS::Packet class
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/// Constructs an audio header to be used on each audio frame.
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/// The length of this header will ALWAYS be 7 bytes, and has to be
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/// prepended on each audio frame.
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/// \param FrameLen the length of the current audio frame.
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/// \param initData A string containing the initalization data for this track's codec.
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static inline std::string GetAudioHeader(int FrameLen, std::string initData){
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char StandardHeader[7] = {0xFF, 0xF1, 0x00, 0x00, 0x00, 0x1F, 0xFC};
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FrameLen += 7;
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StandardHeader[2] = ((((initData[0] >> 3) - 1) << 6) & 0xC0); //AAC Profile - 1 ( First two bits )
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StandardHeader[2] |= ((((initData[0] & 0x07) << 1) | ((initData[1] >> 7) & 0x01)) << 2); //AAC Frequency Index
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StandardHeader[2] |= ((initData[1] & 0x20) >> 5); //AAC Channel Config
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StandardHeader[3] = ((initData[1] & 0x18) << 3); //AAC Channel Config (cont.)
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StandardHeader[3] |= ((FrameLen & 0x00001800) >> 11);
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StandardHeader[4] = ((FrameLen & 0x000007F8) >> 3);
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StandardHeader[5] |= ((FrameLen & 0x00000007) << 5);
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return std::string(StandardHeader, 7);
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}
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/// A standard Program Association Table, as generated by FFMPEG.
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/// Seems to be independent of the stream.
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//0x47 = sync byte
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//0x4000 = transport error(1) = 0, payload unit start(1) = 1, priority(1) = 0, PID(13) = 0
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//0x10 = transportscrambling(2) = 0, adaptation(2) = 1, continuity(4) = 0
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//0x00 = pointer = 0
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//0x00 = table ID = 0 = PAT
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//0xB00D = section syntax(1) = 1, 0(1)=0, reserved(2) = 3, section_len(12) = 13
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//0x0001 = transport stream id = 1
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//0xC1 = reserved(2) = 3, version(5)=0, curr_next_indi(1) = 1
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//0x00 = section_number = 0
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//0x00 = last_section_no = 0
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//0x0001 = ProgNo = 1
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//0xF000 = reserved(3) = 7, network pid = 4096
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//0x2AB104B2 = CRC32
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static char PAT[188] = {0x47, 0x40, 0x00, 0x10, 0x00, 0x00, 0xB0, 0x0D, 0x00, 0x01, 0xC1, 0x00, 0x00, 0x00, 0x01, 0xF0, 0x00, 0x2A, 0xB1, 0x04,
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0xB2, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
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/// A standard Program Mapping Table, as generated by FFMPEG.
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/// Contains both Audio and Video mappings, works also on video- or audio-only streams.
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//0x47 = sync byte
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//0x5000 = transport error(1) = 0, payload unit start(1) = 1, priority(1) = 0, PID(13) = 4096
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//0x10 = transportscrambling(2) = 0, adaptation(2) = 1, continuity(4) = 0
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//0x00 = pointer = 0
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//0x02 = table ID = 2 = PMT
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//0xB017 = section syntax(1) = 1, 0(1)=0, reserved(2) = 3, section_len(12) = 23
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//0x0001 = ProgNo = 1
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//0xC1 = reserved(2) = 3, version(5)=0, curr_next_indi(1) = 1
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//0x00 = section_number = 0
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//0x00 = last_section_no = 0
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//0xE100 = reserved(3) = 7, PCR_PID(13) = 0x100
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//0xF000 = reserved(4) = 15, proginfolen = 0
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//0x1B = streamtype = 27 = H264
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//0xE100 = reserved(3) = 7, elem_ID(13) = 0x100
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//0xF000 = reserved(4) = 15, es_info_len = 0
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//0x0F = streamtype = 15 = audio with ADTS transport syntax
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//0xE101 = reserved(3) = 7, elem_ID(13) = 0x101
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//0xF000 = reserved(4) = 15, es_info_len = 0
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//0x2F44B99B = CRC32
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static char PMT[188] = {0x47, 0x50, 0x00, 0x10, 0x00, 0x02, 0xB0, 0x17, 0x00, 0x01, 0xC1, 0x00, 0x00, 0xE1, 0x00, 0xF0, 0x00, 0x1B, 0xE1, 0x00,
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0xF0, 0x00, 0x0F, 0xE1, 0x01, 0xF0, 0x00, 0x2F, 0x44, 0xB9, 0x9B, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
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} //TS namespace
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