FFMpeg直接解码live555收到的网络数据包时错误解决方法

错误描述：

[h264 @ 003e4df0] non-existing PPS 0 referenced

[h264 @ 003e4df0] decode_slice_header error

[h264 @ 003e4df0] non-existing PPS 0 referenced

[h264 @ 003e4df0] decode_slice_header error



说明：上面的错误原因是PPS在解码的时候没有被设置

解决方法：

***CodecContext *pCodecCtx; //解码环境

pCodecCtx = avcodec_alloc_context();//分配解码环境

pCodecCtx->extradata = new uint8_t[32];//给extradata成员参数分配内存

pCodecCtx->extradata_size = 32;//extradata成员参数分配内存大小



//给extradata成员参数设置值

//00 00 00 01

pCodecCtx->extradata[0] = 0x00;

pCodecCtx->extradata[1] = 0x00;

pCodecCtx->extradata[2] = 0x00;

pCodecCtx->extradata[3] = 0x01;

//67 42 80 1e

pCodecCtx->extradata[4] = 0x67;

pCodecCtx->extradata[5] = 0x42;

pCodecCtx->extradata[6] = 0x80;

pCodecCtx->extradata[7] = 0x1e;

//88 8b 40 50

pCodecCtx->extradata[8] = 0x88;

pCodecCtx->extradata[9] = 0x8b;

pCodecCtx->extradata[10] = 0x40;

pCodecCtx->extradata[11] = 0x50;

//1e d0 80 00

pCodecCtx->extradata[12] = 0x1e;

pCodecCtx->extradata[13] = 0xd0;

pCodecCtx->extradata[14] = 0x80;

pCodecCtx->extradata[15] = 0x00;

//03 84 00 00

pCodecCtx->extradata[16] = 0x03;

pCodecCtx->extradata[17] = 0x84;

pCodecCtx->extradata[18] = 0x00;

pCodecCtx->extradata[19] = 0x00;

//af c8 02 00

pCodecCtx->extradata[20] = 0xaf;

pCodecCtx->extradata[21] = 0xc8;

pCodecCtx->extradata[22] = 0x02;

pCodecCtx->extradata[23] = 0x00;

//00 00 00 01

pCodecCtx->extradata[24] = 0x00;

pCodecCtx->extradata[25] = 0x00;

pCodecCtx->extradata[26] = 0x00;

pCodecCtx->extradata[27] = 0x01;

//68 ce 38 80

pCodecCtx->extradata[28] = 0x68;

pCodecCtx->extradata[29] = 0xce;

pCodecCtx->extradata[30] = 0x38;

pCodecCtx->extradata[31] = 0x80;