求助：MP4V2封装H264

沉水之鱼

第一次使用MP4V2封装H264码流，封装出来的MP4文件快进快退不正常，会卡顿模糊。

MP4V2初始化代码

1. char mp4_filename[RECORD_FILENAME_LEN];
   
2.         time_t timep;
   
3.         struct tm *p;
   
4.         time(&timep);
   
5.         unsigned char sps[] = {0x47, 0x4d, 0x0, 0x29, 0x99, 0xa0, 0x1e, 0x0, 0x89, 0xf9, 0x61, 0x0, 0x0, 0x3, 0x3, 0xe8, 0x0, 0x0, 0xc3, 0x50, 0x84};
   
6.         unsigned char pps[] = {0x48, 0xee, 0x3c, 0x80};
   
7.         p = gmtime(&timep);
   
8.         memset(mp4_filename, 0, RECORD_FILENAME_LEN);
   
9.         sprintf(mp4_filename,"/sdcard/picture/video/record_%d%d%d_%d%d%d.mp4",p->tm_year,p->tm_mon,p->tm_mday,p->tm_hour,p->tm_min,p->tm_sec);
   
10.         RecordContext.mp4ContextSet.mp4_filehandle= MP4Create(mp4_filename, 0);
    
11.         if(MP4_INVALID_FILE_HANDLE == RecordContext.mp4ContextSet.mp4_filehandle)
    
12.         {
    
13.                 ERR_PRINTF("MP4Create file error!");
    
14.                 return -1;
    
15.         }
    
16.         if(!MP4SetTimeScale(RecordContext.mp4ContextSet.mp4_filehandle, 90000))
    
17.         {
    
18.                 ERR_PRINTF("MP4SetTimeScale failed!");
    
19.                 MP4Close(RecordContext.mp4ContextSet.mp4_filehandle, 0);
    
20.                 RecordContext.mp4ContextSet.mp4_filehandle = MP4_INVALID_FILE_HANDLE;
    
21.                 return -1;
    
22.         }
    
23.         MP4SetVideoProfileLevel(RecordContext.mp4ContextSet.mp4_filehandle, 0x7F);
    
24.         RecordContext.mp4ContextSet.video = MP4AddH264VideoTrack(RecordContext.mp4ContextSet.mp4_filehandle, 90000, 90000/30, 1920, 1080, sps[1], sps[2], sps[3], 3);
    
25.         if (MP4_INVALID_TRACK_ID == RecordContext.mp4ContextSet.video)
    
26.     {
    
27.                 ERR_PRINTF("add video track failed!");
    
28.                 MP4Close(RecordContext.mp4ContextSet.mp4_filehandle, 0);
    
29.                 RecordContext.mp4ContextSet.mp4_filehandle = MP4_INVALID_FILE_HANDLE;
    
30.                 return -1;
    
31.     }
    
32. 
    
33.         MP4AddH264SequenceParameterSet(RecordContext.mp4ContextSet.mp4_filehandle, RecordContext.mp4ContextSet.video, sps, 21);
    
34.         MP4AddH264PictureParameterSet(RecordContext.mp4ContextSet.mp4_filehandle, RecordContext.mp4ContextSet.video, pps, 4);

复制代码

其中sps pps 是从H264中提取出来的
写的时候，非关键帧 sps+pps+b/p帧 是否需要去掉sps pps ？