mirror of
https://github.com/ossrs/srs.git
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update the ts_info, parse the PES packet
This commit is contained in:
winlin
parent
b2fe7fb8a1
commit
6d4e4d3da2
1 changed files with 312 additions and 75 deletions
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@ -440,15 +440,51 @@ public:
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// 1B
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u_int8_t PES_header_data_length; //8bits
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/**
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* logic data.
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*/
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// generated by PTS_DTS_flags
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int64_t pts; // 33bits
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int64_t dts; // 33bits
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int16_t ESCR_extension; //9bits
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int64_t ESCR_base; //33bits
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int32_t ES_rate; //22bits
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int8_t trick_mode_control; //3bits
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int8_t trick_mode_value; //5bits
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int8_t additional_copy_info; //7bits
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int16_t previous_PES_packet_CRC; //16bits
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int8_t PES_private_data_flag; //1bit
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int8_t pack_header_field_flag; //1bit
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int8_t program_packet_sequence_counter_flag; //1bit
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int8_t P_STD_buffer_flag; //1bit
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// reserved 3bits
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int8_t PES_extension_flag_2; //1bit
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// 16B
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char* PES_private_data; //128bits
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int8_t pack_field_length; //8bits
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char* pack_field; //[pack_field_length] bytes
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int8_t program_packet_sequence_counter; //7bits
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int8_t MPEG1_MPEG2_identifier; //1bit
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int8_t original_stuff_length; //6bits
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int8_t P_STD_buffer_scale; //1bit
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int16_t P_STD_buffer_size; //13bits
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int8_t PES_extension_field_length; //7bits
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char* PES_extension_field; //[PES_extension_field_length] bytes
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int stuffing_size;
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char* stuffing_byte;
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char* PES_packet_data_byte; //[PES_packet_length] bytes
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TSPayloadPES();
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virtual ~TSPayloadPES();
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int64_t decode_33bits_int(u_int8_t*& p, int64_t& temp);
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int64_t decode_33bits_int(int64_t& temp);
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int demux(TSContext* ctx, TSPacket* pkt, u_int8_t* start, u_int8_t* last, u_int8_t*& p);
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};
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@ -537,10 +573,38 @@ void TSContext::push(TSPidType type, int16_t pid)
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TSAdaptionField::TSAdaptionField()
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{
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adaption_field_length = 0;
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discontinuity_indicator = 0;
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random_access_indicator = 0;
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elementary_stream_priority_indicator = 0;
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PCR_flag = 0;
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OPCR_flag = 0;
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splicing_point_flag = 0;
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transport_private_data_flag = 0;
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adaptation_field_extension_flag = 0;
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program_clock_reference_base = 0;
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program_clock_reference_extension = 0;
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original_program_clock_reference_base = 0;
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original_program_clock_reference_extension = 0;
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splice_countdown = 0;
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transport_private_data_length = 0;
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transport_private_data = NULL;
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adaptation_field_extension_length = 0;
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ltw_flag = 0;
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piecewise_rate_flag = 0;
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seamless_splice_flag = 0;
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ltw_valid_flag = 0;
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ltw_offset = 0;
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piecewise_rate = 0;
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splice_type = 0;
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DTS_next_AU0 = 0;
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marker_bit0 = 0;
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DTS_next_AU1 = 0;
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marker_bit1 = 0;
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DTS_next_AU2 = 0;
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marker_bit2 = 0;
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af_ext_reserved = NULL;
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af_reserved = NULL;
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__user_size = 0;
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}
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@ -719,7 +783,18 @@ int TSPayloadReserved::demux(TSContext* ctx, TSPacket* pkt, u_int8_t* start, u_i
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TSPayloadPAT::TSPayloadPAT()
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{
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table_id = 0;
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section_syntax_indicator = 0;
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const0_value = 0;
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section_length = 0;
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transport_stream_id = 0;
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version_number = 0;
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current_next_indicator = 0;
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section_number = 0;
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last_section_number = 0;
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program_size = 0;
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programs = NULL;
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CRC_32 = 0;
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}
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TSPayloadPAT::~TSPayloadPAT()
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@ -781,7 +856,9 @@ int TSPayloadPAT::demux(TSContext* ctx, TSPacket* pkt, u_int8_t* start, u_int8_t
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TSPMTESInfo::TSPMTESInfo()
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{
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ES_info_length = 0;
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stream_type = 0;
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elementary_PID = 0;
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ES_info_length = 0;
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ES_info = NULL;
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}
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@ -792,8 +869,19 @@ TSPMTESInfo::~TSPMTESInfo()
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TSPayloadPMT::TSPayloadPMT()
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{
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program_info_length = 0;
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program_info_desc = NULL;
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table_id = 0;
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section_syntax_indicator = 0;
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const0_value = 0;
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section_length = 0;
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program_number = 0;
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version_number = 0;
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current_next_indicator = 0;
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section_number = 0;
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last_section_number = 0;
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PCR_PID = 0;
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program_info_length = 0;
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program_info_desc = NULL;
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CRC_32 = 0;
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}
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TSPayloadPMT::~TSPayloadPMT()
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@ -904,11 +992,92 @@ int TSPayloadPMT::demux(TSContext* ctx, TSPacket* pkt, u_int8_t* start, u_int8_t
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TSPayloadPES::TSPayloadPES()
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{
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pts = dts = 0;
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packet_start_code_prefix = 0;
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stream_id = 0;
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PES_packet_length = 0;
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PES_scrambling_control = 0;
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PES_priority = 0;
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data_alignment_indicator = 0;
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copyright = 0;
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original_or_copy = 0;
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PTS_DTS_flags = 0;
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ESCR_flag = 0;
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ES_rate_flag = 0;
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DSM_trick_mode_flag = 0;
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additional_copy_info_flag = 0;
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PES_CRC_flag = 0;
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PES_extension_flag = 0;
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PES_header_data_length = 0;
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pts = 0;
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dts = 0;
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ESCR_extension = 0;
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ESCR_base = 0;
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ES_rate = 0;
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trick_mode_control = 0;
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trick_mode_value = 0;
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additional_copy_info = 0;
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previous_PES_packet_CRC = 0;
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PES_private_data_flag = 0;
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pack_header_field_flag = 0;
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program_packet_sequence_counter_flag = 0;
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P_STD_buffer_flag = 0;
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PES_extension_flag_2 = 0;
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PES_private_data = NULL;
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pack_field_length = 0;
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pack_field = NULL;
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program_packet_sequence_counter = 0;
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MPEG1_MPEG2_identifier = 0;
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original_stuff_length = 0;
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P_STD_buffer_scale = 0;
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P_STD_buffer_size = 0;
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PES_extension_field_length = 0;
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PES_extension_field = NULL;
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stuffing_size = 0;
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stuffing_byte = NULL;
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PES_packet_data_byte = NULL;
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}
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TSPayloadPES::~TSPayloadPES()
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{
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srs_freepa(PES_private_data);
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srs_freepa(pack_field);
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srs_freepa(PES_extension_field);
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srs_freepa(stuffing_byte);
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srs_freepa(PES_packet_data_byte);
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}
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int64_t TSPayloadPES::decode_33bits_int(u_int8_t*& p, int64_t& temp)
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{
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char* pp = (char*)&temp;
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pp[4] = *p++;
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pp[3] = *p++;
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pp[2] = *p++;
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pp[1] = *p++;
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pp[0] = *p++;
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return decode_33bits_int(temp);
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}
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int64_t TSPayloadPES::decode_33bits_int(int64_t& temp)
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{
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int64_t ret = 0;
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// marker_bit 1bit
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temp = temp >> 1;
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// PTS [14..0] 15bits
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ret |= temp & 0x3fff;
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// marker_bit 1bit
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temp = temp >> 1;
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// PTS [29..15] 15bits, 15zero, 29-15+1one
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ret |= temp & 0x3fff8000;
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// marker_bit 1bit
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temp = temp >> 1;
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// PTS [32..30] 3bits
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ret |= temp & 0x1c0000000;
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temp = temp >> 33;
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return ret;
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}
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int TSPayloadPES::demux(TSContext* ctx, TSPacket* pkt, u_int8_t* start, u_int8_t* last, u_int8_t*& p)
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@ -957,82 +1126,141 @@ int TSPayloadPES::demux(TSContext* ctx, TSPacket* pkt, u_int8_t* start, u_int8_t
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PES_extension_flag &= 0x01;
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PES_header_data_length = *p++;
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u_int8_t* pos = p;
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int64_t temp = 0;
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if (PTS_DTS_flags == 0x2) {
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int64_t temp = 0;
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pp = (char*)&temp;
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pp[4] = *p++;
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pp[3] = *p++;
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pp[2] = *p++;
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pp[1] = *p++;
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pp[0] = *p++;
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// marker_bit 1bit
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temp = temp >> 1;
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// PTS [14..0] 15bits
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pts |= temp & 0x3FFF;
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// marker_bit 1bit
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temp = temp >> 1;
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// PTS [29..15] 15bits
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pts |= temp & 0x3fff8000;
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// marker_bit 1bit
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temp = temp >> 1;
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// PTS [32..30] 3bits
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pts |= temp & 0x1c0000000;
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pts = decode_33bits_int(p, temp);
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// '0010' 4bits
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//int8_t const4bits = (temp >> 32) & 0x0F;
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//int8_t const4bits = temp & 0x0F;
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}
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if (PTS_DTS_flags == 0x3) {
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int64_t temp = 0;
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pp = (char*)&temp;
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pp[4] = *p++;
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pp[3] = *p++;
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pp[2] = *p++;
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pp[1] = *p++;
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pp[0] = *p++;
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pts = decode_33bits_int(p, temp);
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// '0011' 4bits
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//int8_t const4bits = temp & 0x0F;
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// marker_bit 1bit
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temp = temp >> 1;
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// PTS [14..0] 15bits
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pts |= temp & 0x3FFF;
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// marker_bit 1bit
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temp = temp >> 1;
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// PTS [29..15] 15bits
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pts |= temp & 0x3fff8000;
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// marker_bit 1bit
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temp = temp >> 1;
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// PTS [32..30] 3bits
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pts |= temp & 0x1c0000000;
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// '0010' 4bits
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//int8_t const4bits = (temp >> 32) & 0x0F;
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pp = (char*)&temp;
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pp[4] = *p++;
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pp[3] = *p++;
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pp[2] = *p++;
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pp[1] = *p++;
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pp[0] = *p++;
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// marker_bit 1bit
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temp = temp >> 1;
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// PTS [14..0] 15bits
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dts |= temp & 0x3FFF;
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// marker_bit 1bit
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temp = temp >> 1;
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// PTS [29..15] 15bits
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dts |= temp & 0x3fff8000;
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// marker_bit 1bit
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temp = temp >> 1;
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// PTS [32..30] 3bits
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dts |= temp & 0x1c0000000;
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// '0010' 4bits
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//int8_t const4bits = (temp >> 32) & 0x0F;
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dts = decode_33bits_int(p, temp);
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// '0001' 4bits
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//int8_t const4bits = temp & 0x0F;
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}
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if (ESCR_flag) {
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pp = (char*)&temp;
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pp[5] = *p++;
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pp[4] = *p++;
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pp[3] = *p++;
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pp[2] = *p++;
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pp[1] = *p++;
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pp[0] = *p++;
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// marker_bit 1bit
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temp = temp >> 1;
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// ESCR_extension 9bits
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ESCR_extension = temp & 0x1f;
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temp = temp >> 9;
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ESCR_base = decode_33bits_int(temp);
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// reserved 2bits
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//int8_t reserved2bits = temp & 0x03;
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}
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if (ES_rate_flag) {
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pp = (char*)&ES_rate;
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pp[2] = *p++;
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pp[1] = *p++;
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pp[0] = *p++;
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ES_rate = ES_rate >> 1;
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ES_rate &= 0x3FFFFF;
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}
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if (DSM_trick_mode_flag) {
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trick_mode_control = *p++;
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trick_mode_value = trick_mode_control & 0x1f;
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trick_mode_control = (trick_mode_control >> 5) & 0x03;
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}
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if (additional_copy_info_flag) {
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additional_copy_info = *p++;
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additional_copy_info &= 0x7f;
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}
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if (PES_CRC_flag) {
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pp = (char*)&previous_PES_packet_CRC;
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pp[1] = *p++;
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pp[0] = *p++;
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}
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if (PES_extension_flag) {
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PES_extension_flag_2 = *p++;
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PES_private_data_flag = (PES_extension_flag_2 >> 7) & 0x01;
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pack_header_field_flag = (PES_extension_flag_2 >> 6) & 0x01;
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program_packet_sequence_counter_flag = (PES_extension_flag_2 >> 5) & 0x01;
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P_STD_buffer_flag = (PES_extension_flag_2 >> 4) & 0x01;
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PES_extension_flag_2 &= PES_extension_flag_2 & 0x01;
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if (PES_private_data_flag) {
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PES_private_data = new char[16];
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memcpy(PES_private_data, p, 16);
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p += 16;
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}
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if (pack_header_field_flag) {
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pack_field_length = *p++;
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if (pack_field_length > 0) {
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pack_field = new char[pack_field_length];
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memcpy(pack_field, p, pack_field_length);
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p += pack_field_length;
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}
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}
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if (program_packet_sequence_counter_flag) {
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program_packet_sequence_counter = *p++;
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program_packet_sequence_counter &= 0x7f;
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original_stuff_length = *p++;
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MPEG1_MPEG2_identifier = (original_stuff_length >> 6) & 0x01;
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original_stuff_length &= 0x3f;
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}
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if (P_STD_buffer_flag) {
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pp = (char*)&P_STD_buffer_size;
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pp[1] = *p++;
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pp[0] = *p++;
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// '01'
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//int8_t const2bits = (P_STD_buffer_scale >>14) & 0x03;
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P_STD_buffer_scale = (P_STD_buffer_scale >>13) & 0x01;
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P_STD_buffer_size &= 0x1FFF;
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}
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if (PES_extension_flag_2) {
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PES_extension_field_length = *p++;
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PES_extension_field_length &= 0x07;
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if (PES_extension_field_length > 0) {
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PES_extension_field = new char[PES_extension_field_length];
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memcpy(PES_extension_field, p, PES_extension_field_length);
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p += PES_extension_field_length;
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}
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}
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}
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// stuffing_byte
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int stuffing_size = PES_header_data_length - (p - pos);
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if (stuffing_size > 0) {
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stuffing_byte = new char[stuffing_size];
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memcpy(stuffing_byte, p, stuffing_size);
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p += stuffing_size;
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}
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// PES_packet_data_byte
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PES_packet_data_byte = new char[PES_packet_length];
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} else if (stream_id == PES_program_stream_map
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|| stream_id == PES_private_stream_2
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|| stream_id == PES_ECM_stream
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@ -1064,12 +1292,13 @@ TSPayload::TSPayload()
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{
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size = 0;
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pointer_field_size = 0;
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type = TSPidTypeReserved;
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pointer_field = 0;
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reserved = NULL;
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pat = NULL;
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pmt = NULL;
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pes = NULL;
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}
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TSPayload::~TSPayload()
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@ -1179,6 +1408,14 @@ int TSPacket::finish()
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TSHeader::TSHeader()
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{
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sync_byte = 0;
|
||||
transport_error_indicator = 0;
|
||||
payload_unit_start_indicator = 0;
|
||||
transport_priority = 0;
|
||||
pid = 0;
|
||||
transport_scrambling_control = 0;
|
||||
adaption_field_control = 0;
|
||||
continuity_counter = 0;
|
||||
}
|
||||
|
||||
TSHeader::~TSHeader()
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue