V2.0.12

1.在一对一时，强制老师和学生的视频大小一致，且宽高比均为4:3，当不为4:3时，保持视频原始宽高比,水平或垂直居中

@@ -34,7 +34,7 @@ int g_fps;
 
 #define ensure_no_zero(x, v) if(!x) x = v
 
-CAVTranscoder::CAVTranscoder(bool bOne2One, bool one2one_same_size, bool one2many_inflat, int width_teacher, int height_teacher, int width_student, int height_student, bool has_teacher, int max_audio) :
+CAVTranscoder::CAVTranscoder(bool bOne2One, bool one2one_same_size, bool one2many_inflat, int width_teacher, int height_teacher, int width_student, int height_student, bool has_teacher, int max_audio,int keep_4_3) :
 _start_time(INT64_MAX),
 _all_processed(true),
 _nOutputWidth(320),
@@ -90,7 +90,12 @@ _one2one_same_size(one2one_same_size)
 
 			double max_ratio = max(wh_ratio_teacher, wh_ratio_student);
 			_teacher_width = _student_width = max_width;
-			_teacher_height = _student_height = (int)(max_width / max_ratio + 0.5);
+			if (keep_4_3){
+				_teacher_height = _student_height = _teacher_width * 3 / 4;
+			}
+			else{
+				_teacher_height = _student_height = (int)(max_width / max_ratio + 0.5);
+			}
 		}
 
 		_nOutputHeight = _teacher_height + _student_height;

@@ -5,7 +5,7 @@
 class CAVTranscoder
 {
 public:
-	CAVTranscoder(bool bOne2One, bool one2one_same_size, bool one2many_inflat, int width_teacher, int height_teacher, int student_width,int student_height, bool has_teacher, int max_audio);
+	CAVTranscoder(bool bOne2One, bool one2one_same_size, bool one2many_inflat, int width_teacher, int height_teacher, int student_width, int student_height, bool has_teacher, int max_audio, int keep_4_3= true);
 	virtual ~CAVTranscoder();
 
 	int add(media_info & info);

@@ -98,4 +98,7 @@ V2.0.10
 2.一对多布局时，支持对不同分辨率的老师视频进行缩放，统一到相同分辨率
 
 V2.0.11
-1.修改1对多布局时，缺省不扩大合成视频大小，-t 3参数时才根据学生数量扩大合成视频大小
\ No newline at end of file
+1.修改1对多布局时，缺省不扩大合成视频大小，-t 3参数时才根据学生数量扩大合成视频大小
+
+V2.0.12
+1.在一对一时，强制老师和学生的视频大小一致，且宽高比均为4:3，当不为4:3时，保持视频原始宽高比,水平或垂直居中
\ No newline at end of file

@@ -1223,7 +1223,7 @@ int process_av_files(char * record_info, int piptype, bool one2one_same_size, in
 int main(int argc, char * argv[])
 {
 	if (argc < 2) {
-		printf("   merge_pip 2.0.11\n");
+		printf("   merge_pip 2.0.12\n");
 		printf("   merge video files to one pip video according to record info file,\nusage:");
 		printf("\n   %s record_info_filename [-t {0,1,2,3}]  [-c codec.cfg] [-s {1,0}]", argv[0]);
 		printf("\n\n");