ffmpeg修改隔编码逐行编码 及帧率的代码

+static int change_output_resolution(int stream_index,int width,int height,int fps,char interlace[1024],char error_msg[1024])
 {
     OutputStream* ost = NULL;
     char filter_cmd[1024]={0};
@@ -6131,6 +6130,35 @@ static int change_output_resolution(int stream_index,int width,int height,char e
        ost->enc_ctx->coded_width = width;
        ost->enc_ctx->coded_height = height;
     }
+
+    if(strcmp(interlace,"enable") == 0) //隔行编码
+    {
+       ost->enc_ctx->flags = ost->enc_ctx->flags | AV_CODEC_FLAG_INTERLACED_ME;
+       ost->enc_ctx->flags = ost->enc_ctx->flags | AV_CODEC_FLAG_INTERLACED_DCT;
+       av_log(NULL,AV_LOG_FATAL,"video interlace set enable");
+    }
+    /*if(strcmp(interlace,"disable") == 0) //逐行编码
+    {
+        ost->enc_ctx->flags = (ost->enc_ctx->flags&(~AV_CODEC_FLAG_INTERLACED_ME));
+        ost->enc_ctx->flags = (ost->enc_ctx->flags&(~AV_CODEC_FLAG_INTERLACED_DCT));
+        //ost->enc_ctx->flags = 0;
+        int flags1 = ost->enc_ctx->flags & AV_CODEC_FLAG_INTERLACED_ME;
+        int flags2 = ost->enc_ctx->flags & AV_CODEC_FLAG_INTERLACED_DCT;
+        av_log(NULL,AV_LOG_FATAL,"video interlace set disable,flags1=%d flags2=%d\n",flags1,flags2);
+    }
+    */
+    
+
+    /*if(fps != UNKNOW_VALUES)
+    {
+        ost->enc_ctx->framerate = (AVRational){fps,1};
+        ost->enc_ctx->time_base = (AVRational) { 1, fps };
+        av_log(NULL,AV_LOG_FATAL,"lvyunxiang test framerate=%d\n",ost->enc_ctx->framerate);
+        ost->frame_rate = (AVRational){fps,1};
+    }
+    */
+    
+    
     
     if(codec_id == AV_CODEC_ID_H264)
     {
@@ -6521,11 +6549,14 @@ static int cmd_modify(struct cli_def *cli, char *command, char *argv[], int argc
 {
     char rc_method[1024] = {0};
     memset(rc_method,0,1024);
+    char interlace[1024] = {0};
+    memset(interlace,0,1024);
     int bitrate = UNKNOW_VALUES;
     int maxrate = UNKNOW_VALUES;
     int minrate = UNKNOW_VALUES;
     int width = UNKNOW_VALUES;
     int height = UNKNOW_VALUES;
+    int fps = UNKNOW_VALUES;
     int bf = UNKNOW_VALUES;
     int stream_index = UNKNOW_VALUES;
     char error_msg[1024]={0};
@@ -6570,9 +6601,17 @@ static int cmd_modify(struct cli_def *cli, char *command, char *argv[], int argc
        {
     int stream_index = UNKNOW_VALUES;
     char error_msg[1024]={0};
@@ -6570,9 +6601,17 @@ static int cmd_modify(struct cli_def *cli, char *command, char *argv[], int argc
        {
             stream_index = atoi(argv[++i]);
        }
+       if(strcmp(argv[i],"interlace") == 0)
+       {
+            strcpy(interlace,argv[++i]);
+       }
+       if(strcmp(argv[i],"fps") == 0)
+       {
+            fps = atoi(argv[++i]);
+       }
     }
-    av_log(NULL, AV_LOG_FATAL, "stream_index:%d rc_method:%s bitrate:%d maxrate:%d minrate:%d bf:%d width:%d height:%d\n",
-        stream_index,rc_method,bitrate,maxrate,minrate,bf,width,height);
+    av_log(NULL, AV_LOG_FATAL, "stream_index:%d rc_method:%s bitrate:%d maxrate:%d minrate:%d bf:%d width:%d height:%d fps:%d interlace:%s\n",
+        stream_index,rc_method,bitrate,maxrate,minrate,bf,width,height,fps,interlace);
     if(strlen(rc_method) > 0 || bitrate != UNKNOW_VALUES || maxrate != UNKNOW_VALUES || minrate != UNKNOW_VALUES || bf != UNKNOW_VALUES)
     {
         int ret = change_encoder_parm(stream_index,rc_method,bitrate,maxrate,minrate,bf,error_msg);
@@ -6582,9 +6621,9 @@ static int cmd_modify(struct cli_def *cli, char *command, char *argv[], int argc
            return 0;
         }
     }
-    if(width != UNKNOW_VALUES && height != UNKNOW_VALUES)
+    if(width != UNKNOW_VALUES && height != UNKNOW_VALUES )
     {
-        int ret = change_output_resolution(stream_index,width,height,error_msg);
+        int ret = change_output_resolution(stream_index,width,height,fps,interlace,error_msg);
         if(ret != 0)
         {
             cli_print(cli,error_msg);
@@ -7146,7 +7185,7 @@ static int recreate_argv(int argc, char **argv, int *new_argc, char ***new_argv)
 
         /* delete the config file */
         close(fd);
-        unlink(argv[1]);
+        //unlink(argv[1]);
     }
 
     return 0;