對於第一幀的第一個包開始為PS頭+系統頭+節目對映流


1) Pack start code：包起始碼欄位，值為0x000001BA的位串，用來標誌一個包的開始。
2) System clock reference base，system clock reference extenstion：系統時鐘參考欄位。
3) Pack stuffing length ：包填充長度欄位，3 位整數，規定該欄位後填充位元組的個數
80 60 53 1f 00 94 89 00 00 0000 00 00 00 01 ba €`S..??........?
7e ff 3e fb 44 01 00 5f 6b f8 00 00 01 e0 14 53 ~.>?D.._k?...?.S
80 80 05 2f bf cf bed1 1c 42 56 7b 13 58 0a 1e €€./????.BV{.X..
08 b1 4f 33 69 35 0453 6d 33 a8 04 15 58 d9 21 .?O3i5.Sm3?..X?!
9741 b9 f1 75 3d 94 2b 1f bc 0b b2 b4 97 bf 93 ?A??u=?+.?.?????
前12位是RTP Header，這裡不再贅述；
000001ba是包頭起始碼；
接下來的9位包括了SCR，SCRE，MUXRate，具體看圖7
最後一位是保留位（0xf8），定義了是否有擴充套件，二進位制如下
1111 1000
前5位跳過，後3位指示了擴充套件長度，這裡是0.




000001ba5cd2cf388401028f63fe  ffff00575ece  PS頭


000001bb00 12  //長度
8147b104e17fe0e080c0c008bde080bfe080 系統頭


000001bc  004e//長度
eeff  0024(stream info len) 
400e484b01001195a89df27700ffffff4112484b000102030405060708090a0b0c0d0e0f
0020(stream map len) 1b(stream type) e0(stream id)  // stream id & stream type can detemine the codec
0x1b && e0  ----> h264
0x24 && e0  ----> H265


001c420e030810ea07800438111f00001c202a0a7fff000007081ffef0874b920c23 節目對映頭


000001e0 002a//長度
8c800a 2734b3ce21(TS) fffffffffc //OPTIONAL PES header
00000001674d00299a6603c0113f2cd404040500000303e80000c35004  // PES 頭


000001e0 000e 
8c0003 fffffc // PES OPTIONAL header
0000000168ee3c80   // PES 頭


000001e0 97de 
8c0002 fff8 
00000001(H264 startcode) 65(NALU type) 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




startcode followed with:


其中0x67的二進位制碼為：
0110 0111
4-8為00111，轉為十進位制7，參考第二幅圖：7對應序列引數集SPS


其中0x68的二進位制碼為：
0110 1000
4-8為01000，轉為十進位制8，參考第二幅圖：8對應影象引數集PPS


其中0x65的二進位制碼為：
0110 0101
4-8為00101，轉為十進位制5，參考第二幅圖：5對應IDR影象中的片(I幀)


 其中0x41的二進位制碼為：
0100 0001
4-8為00001，轉為十進位制1，參考第二幅圖：根據上圖可知道這段碼流是【不分割槽、非IDR影象的片】，在baseline的檔次中就是P幀，因為baseline沒有B幀。


所以判斷是否為I幀的演算法為： （NALU型別  & 0001  1111） = 5   即   NALU型別  & 31 = 5


比如0x65 & 31 = 5








PTS DTS標誌欄位  PTS_DTS_flags 


2位欄位。當值為'10'時，PTS欄位應出現在PES分組標題中；當值為'11'時，PTS欄位和DTS欄位都應出現在PES分組標題中；當值為'00'時，PTS欄位和DTS欄位都不出現在PES分組標題中。值'01'是不允許的。






中間的某一些幀
000001ba5cd2d4198401028f63fe ffff00575ed0  //PS header
000001e0 0aa2
//1374+
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


//1348 +1374 == aa2
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