ffmpeg怎么样处理网络流

Posted 2023-03-29

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#include "utils.h"
#include <pthread.h>
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
UdpQueue recvqueue;
UdpParam udpParam;
//注册av_read_frame的回调函数，这里只是最简处理，实际应用中应加上出错处理，超时等待...
int read_data(void *opaque, uint8_t *buf, int buf_size)
int size = buf_size;
int ret;
// printf("read data %d\n", buf_size);
do
ret = get_queue(&recvqueue, buf, buf_size);
while (ret);
// printf("read data Ok %d\n", buf_size);
return size;

#define BUF_SIZE 4096*500
int main(int argc, char** argv)
init_queue(&recvqueue, 1024*500);
udpParam.argv = argv;
udpParam.queue = &recvqueue;
uint8_t *buf = av_mallocz(sizeof(uint8_t)*BUF_SIZE);

//UDP接收线程
pthread_t udp_recv_thread;
pthread_create(&udp_recv_thread, NULL, udp_ts_recv, &udpParam);
pthread_detach(udp_recv_thread);

av_register_all();
AVCodec *pVideoCodec, *pAudioCodec;
AVCodecContext *pVideoCodecCtx = NULL;
AVCodecContext *pAudioCodecCtx = NULL;
AVIOContext * pb = NULL;
AVInputFormat *piFmt = NULL;
AVFormatContext *pFmt = NULL;
//step1:申请一个AVIOContext
pb = avio_alloc_context(buf, BUF_SIZE, 0, NU