推流：代码移植后，运行成功，但是遥控器无法正常显示摄像头画面；

samples/sample_c/module_sample/camera_emu/ffmpeg_tc.c

@@ -0,0 +1,176 @@
+//
+// Created by tangchao on 2021/11/16.
+//
+
+
+#include "ffmpeg_tc.h"
+
+char *getsystemtime()
+{
+    //获取系统时间
+    time_t timer;//time_t就是long int 类型
+    struct tm *tblock;
+    timer = time(NULL);//返回秒数(精度为秒)，从1970-1-1,00:00:00 可以当成整型输出或用于其它函数
+    tblock = localtime(&timer);
+    //printf("Local time is: %s\n", asctime(tblock));
+
+    //格式化时间为需要的格式
+    char fileNameTmp[256] = { 0 };
+    char dirNameTmp[256] = { 0 };
+    strftime(fileNameTmp, sizeof(fileNameTmp), "%Y%m%d_%H%M%S", tblock);
+    return fileNameTmp;
+}
+
+AVFrame *get_video_frame(IntputDev* input)//tc改动
+{
+    clock_t start,finish;
+    start = clock(); // 设置开始clock
+
+    int ret;
+    AVFrame * ret_frame=NULL;
+
+    if(av_read_frame(input->v_ifmtCtx, input->in_packet)>=0)
+    {
+        if(input->in_packet->stream_index==input->videoindex)
+        {
+            ret = avcodec_send_packet(input->pCodecCtx, input->in_packet);
+            if (ret < 0) {
+                fprintf(stderr, "Error sending a packet for decoding\n");
+                exit(1);
+            }
+
+            ret = avcodec_receive_frame(input->pCodecCtx, input->pFrame);
+            if(ret<0)
+            {
+                printf("Decode Error.\n");
+                av_packet_unref(input->in_packet);
+                return NULL;
+            }
+            sws_scale(input->img_convert_ctx, (const unsigned char* const*)input->pFrame->data, input->pFrame->linesize, 0, input->pCodecCtx->height, input->pFrameYUV->data,  input->pFrameYUV->linesize);
+            input->pFrameYUV->pts=input->next_pts++;
+            ret_frame= input->pFrameYUV;
+        }
+        av_packet_unref(input->in_packet);
+    }
+
+    finish = clock();// 设置结束clock
+    double duration = (double)(finish - start) / CLOCKS_PER_SEC;//转换浮点型
+//    printf( "采集视频帧时间：%lf seconds\n", duration );
+
+    return ret_frame;
+}
+//
+//static void encode(AVCodecContext *enc_ctx, AVFrame *frame, AVPacket *pkt)
+//{
+//    int ret;
+//
+//    /* send the frame to the encoder */
+//    if (frame)
+//        printf("Send frame %3"PRId64"\n", frame->pts);
+//
+//    ret = avcodec_send_frame(enc_ctx, frame);//返回-21?????????????????????????????????????????????
+//    if (ret < 0) {
+//        fprintf(stderr, "Error sending a frame for encoding\n");
+//        exit(1);
+//    }
+//
+//    while (ret >= 0) {
+//        ret = avcodec_receive_packet(enc_ctx, pkt);
+//        if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
+//            return;
+//        else if (ret < 0) {
+//            fprintf(stderr, "Error during encoding\n");
+//            exit(1);
+//        }
+//
+////        printf("Write packet %3"PRId64" (size=%5d)\n", pkt->pts, pkt->size);
+////        fwrite(pkt->data, 1, pkt->size, outfile);
+//        av_packet_unref(pkt);
+//    }
+//}
+
+void encode(AVCodecContext *enc_ctx, AVFrame *frame, AVPacket *pkt, char **data, int *datasize)
+{
+    int ret;
+
+    /* send the frame to the encoder */
+//    if (frame)
+//        printf("Send frame %3"PRId64"\n", frame->pts);
+
+    ret = avcodec_send_frame(enc_ctx, frame);//返回-21?????????????????????????????????????????????
+    if (ret < 0) {
+        fprintf(stderr, "Error sending a frame for encoding\n");
+        exit(1);
+    }
+
+    while (ret >= 0) {
+        ret = avcodec_receive_packet(enc_ctx, pkt);
+        if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
+        {
+            printf("11111111111111111111\n");
+            return;
+        }
+        else if (ret < 0) {
+            fprintf(stderr, "Error during encoding\n");
+            exit(1);
+        }
+
+//        printf("Write packet %3"PRId64" (size=%5d)\n", pkt->pts, pkt->size);
+//        fwrite(pkt->data, 1, pkt->size, outfile);
+
+        //tc
+        char *dataBuffer = calloc(pkt->size, 1);
+        memcpy(dataBuffer,pkt->data,pkt->size);
+
+        *data = dataBuffer;
+        *datasize = pkt->size;
+
+        av_packet_unref(pkt);
+    }
+    printf("22222222222222222\n");
+}
+
+char * encode2(AVCodecContext *enc_ctx, AVFrame *frame, AVPacket *pkt, int *datasize)
+{
+    clock_t start,finish;
+    start = clock(); // 设置开始clock
+
+    int ret;
+    char *dataBuffer;
+
+    ret = avcodec_send_frame(enc_ctx, frame);
+    if (ret < 0) {
+        fprintf(stderr, "Error sending a frame for encoding\n");
+        exit(1);
+    }
+
+    while (ret >= 0) {
+        ret = avcodec_receive_packet(enc_ctx, pkt);
+        if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
+        {
+            printf("11111111111111111111\n");
+            return NULL;
+        }
+        else if (ret < 0) {
+            fprintf(stderr, "Error during encoding\n");
+            exit(1);
+        }
+
+//        printf("Write packet %3"PRId64" (size=%5d)\n", pkt->pts, pkt->size);
+//        fwrite(pkt->data, 1, pkt->size, outfile);
+
+        //tc
+        dataBuffer = calloc(pkt->size, 1);
+        memcpy(dataBuffer,pkt->data,pkt->size);
+
+        *datasize = pkt->size;
+
+        av_packet_unref(pkt);
+
+        finish = clock();// 设置结束clock
+        double duration = (double)(finish - start) / CLOCKS_PER_SEC;//转换浮点型
+//        printf( "编码视频帧时间：%lf seconds\n", duration );
+
+        return dataBuffer;
+    }
+}