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VideoDecode.pro.user

 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 4.10.2, 2020-01-04T16:33:07. -->
+<!-- Written by QtCreator 4.10.2, 2020-01-04T19:56:44. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>

VideoDecoder/src/VideoDecoder/VideoDecoder.cpp

@@ -8,7 +8,10 @@
 #include "QDataStream"
 #include "iostream"
 using namespace std;
-
+#include <fstream>
+#include <string>
+#include <QDateTime>
+bool isloged=false;
 VideoDecoder::VideoDecoder()
 {
     pCodec = nullptr;
@@ -33,8 +36,8 @@ void VideoDecoder::initWidth(int width, int height)
 #else
 
     int yuvSize = av_image_get_buffer_size(AV_PIX_FMT_YUV420P, pCodecCtx->width, pCodecCtx->height, 1);  //按1字节进行内存对齐,得到的内存大小最接近实际大小
-//    int yuvSize = av_image_get_buffer_size(AV_PIX_FMT_YUV420P, pCodecCtx->width, pCodecCtx->height, 0);  //按0字节进行内存对齐，得到的内存大小是0
-//    int yuvSize = av_image_get_buffer_size(AV_PIX_FMT_YUV420P, pCodecCtx->width, pCodecCtx->height, 4);   //按4字节进行内存对齐，得到的内存大小稍微大一些
+    //    int yuvSize = av_image_get_buffer_size(AV_PIX_FMT_YUV420P, pCodecCtx->width, pCodecCtx->height, 0);  //按0字节进行内存对齐，得到的内存大小是0
+    //    int yuvSize = av_image_get_buffer_size(AV_PIX_FMT_YUV420P, pCodecCtx->width, pCodecCtx->height, 4);   //按4字节进行内存对齐，得到的内存大小稍微大一些
 
     unsigned int numBytes = static_cast<unsigned int>(yuvSize);
     bufferYUV = static_cast<uint8_t *>(av_malloc(numBytes * sizeof(uint8_t)));
@@ -345,20 +348,20 @@ bool VideoDecoder::decode(uint8_t *inputbuf, int frame_size, uint8_t *&outBuf, i
 
     if (avcodec_send_packet(pCodecCtx, &pkt) != 0)
     {
-       fprintf(stderr, "input AVPacket to decoder failed!\n");
-       av_packet_unref(&pkt);
-       return 0;
+        fprintf(stderr, "input AVPacket to decoder failed!\n");
+        av_packet_unref(&pkt);
+        return 0;
     }
 
-//    while (0 == avcodec_receive_frame(pCodecCtx, pFrame))
+    //    while (0 == avcodec_receive_frame(pCodecCtx, pFrame))
     while(1)
     {
         int ret = avcodec_receive_frame(pCodecCtx, pFrame);
         if (ret != 0)
         {
-//            char buffer[1024] = {0};
-//            av_strerror(ret, buffer, 1024);
-//            fprintf(stderr, "avcodec_receive_frame = %d %s\n", ret, buffer);
+            //            char buffer[1024] = {0};
+            //            av_strerror(ret, buffer, 1024);
+            //            fprintf(stderr, "avcodec_receive_frame = %d %s\n", ret, buffer);
             break;
         }
 
@@ -375,13 +378,24 @@ bool VideoDecoder::decode(uint8_t *inputbuf, int frame_size, uint8_t *&outBuf, i
 
         //格式转换 解码之后的数据是yuv420p的 把她转换成 rgb的图像数据
         sws_scale(img_convert_ctx,
-                 (uint8_t const * const *) pFrame->data, pFrame->linesize,
+                  (uint8_t const * const *) pFrame->data, pFrame->linesize,
                   0, pCodecCtx->height,
                   pFrameYUV->data, pFrameYUV->linesize);
 
         outBuf = bufferYUV;
         outWidth = pCodecCtx->width;
         outHeight = pCodecCtx->height;
+
+        if(!isloged){
+            ofstream oFile;
+            oFile.open("test.csv",ios::out|ios::trunc);
+            oFile<<"width"<<","<<"height"<<","<<"pix_fmt"<<","<<"fps"<<endl;
+            oFile<< pCodecCtx->width<<","<<pCodecCtx->height<<","<<"AV_PIX_FMT_YUV420P"<<","<<pCodecCtx->time_base.den<<endl;
+            oFile.close();
+            isloged=true;
+        }
+
+
     }
 
     av_packet_unref(&pkt);