解析汇报TS流PAT和PMT代码

1、#in clude#in clude#in clude/TS文件的绝对路径#defi ne ts_path /home/huohuo/hua ngwork/work/birds.ts int mai n()void Read_Ts_Packet(FILE *file_ha ndle, un sig ned char *packet_buf,i nt len); packetint parse_TS( un sig ned char *buffer,i nt FileSize);PAT 的 PID 和 PAT 的 tablevoid parse_PAT( un sig ned char *buf

2、fer,i nt len);出所含频道的数目和PMT的PID/读一个TS流的/分析TS流，并找出/分析PAT,并找void pronu m_pmtid_pri ntf();un sig ned char* Fin d_PMT( un sig ned short pmt_pid);void parse_PMT( un sig ned char *buffer,i nt len,un sig ned short pmt_pid); 的 Video 和 Audio 的 PID打印PMT的PID找出PMT的table/解析PMT，找出其中/打印PMT table中包含的void printf_prog

3、ram_list();stream的类型和PIDunsigned char* Find_video_audio(unsigned short program_pid,unsigned char type); / 找出 Video 或者 Audio 的 tabletypedef structun sig ned short program_ num; /programs numun sig ned short pmt_pid;/PROGRAM;typedef structun sig ned char stream_type;un sig ned short eleme ntary_pid;PR

4、O_LIST;PROGRAM programs10 = 0,0; un sig ned int num = 0; /total program/用来存储 PMT的PID和数量PRO_LIST programist10 = 0,0;PIDun sig ned int program_list_ num = 0;FILE *file_ha ndle;针un sig ned int FileSize = 0;用来存储PMT中stream的类型和指向TS流的指un sig ned char buffer188 = 0;un sig ned char *pmt_buffer, *Video_or_Aud

5、io_buffer;un sig ned int i=0,j=0,ret=0;pmt_buffer = (unsigned char*)malloc(sizeof(char)*188);给 buffer 分配空间memset(pmt_buffer,0,sizeof(char)*188);/清空 bufferVideo_or_Audio_buffer = (un sig ned char*)malloc(sizeof(char)*188); memset(Video_or_Audio_buffer,0,sizeof(char)*188);file_handle = fopen(ts_path,r

6、b+);/ 以二进制方式打开 TS 文件if(NULL = file_ha ndle)/判断是否打开文件perror(fope n);prin tf(ope n file error! n);return 0;elseprin tf(ope n file success! n);fseek(file_handle,0,SEEK_END);/指针 file_handle 将以 SEEK_END 位置偏移 0 个位置，即将指针移动到文件尾FileSize = ftell(file_handle); /计算file_handle到文件头的偏移字节数，即计算文件的大小prin tf(file size

7、 = %dn,FileSize);rewi nd(file_ha ndle); / equivale nt (void) feek(file_ha ndle,0L,SEEK_SET)将 file_ha ndle指针移动到文件头位置prin tf(fi nd PAT beginn);for(i=0;in);for(i=0;in);for(j=0;jn);for(i=0;in);for(j=0;j188;j+)printf(0x%x ,Video_or_Audio_bufferj);打印 elementarys tablememset(Video_or_Audio_buffer,0,sizeof(

8、char)*188); prin tf(n);free(pmt_buffer);free(Video_or_Audio_buffer);pmt_buffer = NULL;Video_or_Audio_buffer = NULL;fclose(file_ha ndle);prin tf(n);return 1;/* read one TS packets data* */void Read_Ts_Packet(FILE *file_ha ndle, un sig ned char *packet_buf,i nt len) fread(packet_buf,188,1,file_ha ndle

9、); int parse_TS( un sig ned char *buffer,i nt FileSize)un sig ned char *temp = buffer; short pat_pid;int i = 0;if(bufferO != 0x47)prin tf(its not a ts packet!n); return 0;while(temp buffer + FileSize)pat_pid = (temp1 & 0x1f)n);for(i=0;i=187;i+)prin tf(0x%x ,bufferi);prin tf(n);return 1;temp = temp +

10、 188;return 0; /* parse PAT table, get the PMTs PID* *void parse_PAT( un sig ned char *buffer,i nt len)un sig ned char *temp, *p;char adaptati on_con trol;int adaptati on_len gth,i=0;un sig ned short sect ion_len gth,prg_No,PMT_Pid;temp = buffer;adaptation_c ontrol = temp3 & 0x30;if(adaptati on_con

11、trol = 0x10)temp = buffer + 4 + 1;else if (adaptati on_con trol = 0x30)adaptati on_len gth = buffer4;temp = buffer + 4 + 1 +adaptati on_len gth + 1;elsereturn ;sectionen gth = (temp1&0x0f)8 | temp2;p = temp + 1 +secti on_len gth;temp = temp + 8;while(temp p - 4)prg_No = (temp08) | (temp1);if(prg_No

12、= 0)temp = temp + 4;con ti nue;elsePMT_Pid = (temp2&0x1f)8 | temp3; programs nu gram_ num = prg_No;programs nu m.pmt_pid = PMT_Pid;/prin tf(pmt_pid is ox%xn, PMT_Pid);num +;temp = temp + 4;void pronu m_pmtid_pri ntf()un sig ned int i;prin tf(PAT tables program_ num and PMTs PID:n);for(i=0;i nu

13、m;i+)prin tf(program_ num = 0x%x (%d),PMT_Pid = 0x%x (%d)n, gram_ nu m,gram_ num, programsi.pmt_pid,programsi.pmt_pid); void prin tf_programist()un sig ned int i;prin tf(AII PMT Tables program list: n);for(i=0;iprogramist_ nu m;i+)prin tf(stream_type=0x%x,eleme ntary_pid0x%

14、x n,program_listi.stream_type,program_listi.eleme ntary_pid);prin tf(n);un sig ned char* Fin d_PMT( un sig ned short pmt_pid)un sig ned int i=0,j=0;int pid;un sig ned char *buffer;buffer = (un sig ned char *)malloc(sizeof(char)*188); memset(buffer,0,sizeof(char)*188);rewi nd(file_ha ndle); for(j=0;j

15、FileSize/188;j+)Read_Ts_Packet(file_ha ndle,buffer,188); if(buffer0 != 0x47)prin tf(Its not TS packet !n);elsepid = (buffer1 & 0x1f) 8 | buffer2; if(pid = pmt_pid)prin tf(PMT Table already fin d!n); return buffer;elseprintf(fin di ng PMT tablen); un sig ned char* Fin d_video_audio (un sig ned short

16、program_pid, un sig ned char type) un sig ned int i = 0, j = 0 ;int pid;un sig ned char *buffer;buffer = (un sig ned char *)malloc(sizeof(char)*188);memset(buffer,0,sizeof(char)*188);rewin d(file_ha ndle);for(j=0;jFileSize/188;j+)Read_Ts_Packet(file_ha ndle,buffer,188);if(buffer0 != 0x47)prin tf(Its

17、 not TS packet !n); else pid = (buffer1 & 0x1f) 8 | buffer2;if(program_pid = pid)if(type = 0x02)printf(Find a program and this program is Video type! n); else if(type = 0x03)printf(Find a program and this program is Audio type! n); elseprintf(Find a program but this program is other type !n ”)；retur

18、n buffer;elseprin tf(fi nding Video or Audio table.n );void parse_PMT( un sig ned char *buffer,i nt len,un sig ned short pmt_pid) un sig ned char *temp, *p;char adaptati on_con trol;int adaptati on_len gth,i=0;int program_i nfo_le ngth;int ES_in fo_le ngth;un sig ned short sect ion_len gth,pid; temp = buffer;adaptation_c ontrol = tem