V2.0.2

1.修改老师和学生视频大小不一致，老师的视频小于320x240时，老师背景有花屏
2.修改老师和学生视频都为240x180视频时，视频宽度仍为240, 且有花屏
3.只有一路视频时，默认合成为上下布局

@@ -36,9 +36,11 @@ _studentFrame(NULL)
 	_scaled_height = _src_height * 10 / 32;
 	_one2one = bOne2One;
 	if (_one2one) {
+		_nOutputWidth = _src_width;
 		_nOutputHeight = _src_height * 2;
 	}
 	else {
+		_nOutputWidth = _src_width;
 		_nOutputHeight = _src_height;
 
 		init_scale_context(&_sws_ctx_w_h, &_scaled_frame_w_h, _src_width, _src_height, _scaled_width, _scaled_height);
@@ -636,7 +638,12 @@ int CAVTranscoder::open_output_file(const char *filename)
 				fillDestFrame(pDstFrame, _teacherFrame, (_src_width - _src_height) / 2, 0);
 			}
 			else {
-				printf("\nresolution: %dx%d unexpected!", _studentFrame->width, _studentFrame->height);
+				//printf("\nresolution: %dx%d unexpected!", _teacherFrame->width, _teacherFrame->height);
+				memset(pDstFrame->data[0], _blank_y, _nOutputWidth * _nOutputHeight / 2);
+				memset(pDstFrame->data[1], _blank_u, _nOutputWidth * _nOutputHeight / 8);
+				memset(pDstFrame->data[2], _blank_v, _nOutputWidth * _nOutputHeight / 8);
+				
+				fillDestFrame(pDstFrame, _teacherFrame, 0, 0);
 			}
 			if (_studentFrame) {
 				if (_studentFrame->width == _src_width) {
@@ -682,7 +689,11 @@ int CAVTranscoder::open_output_file(const char *filename)
 					fillDestFrame(pDstFrame, _studentFrame, (_src_width - _src_height) / 2, 0);
 			}
 			else {
-				printf("\nresolution: %dx%d unexpected!", _studentFrame->width, _studentFrame->height);
+				//printf("\nresolution: %dx%d unexpected!", _studentFrame->width, _studentFrame->height);
+				memset(pDstFrame->data[0], _blank_y, _nOutputWidth * _nOutputHeight / 2);
+				memset(pDstFrame->data[1], _blank_u, _nOutputWidth * _nOutputHeight / 8);
+				memset(pDstFrame->data[2], _blank_v, _nOutputWidth * _nOutputHeight / 8);
+				fillDestFrame(pDstFrame, _studentFrame, 0, 0);
 			}
 		}
 

@@ -38,4 +38,9 @@ m_1.mp4  859282931_20181112133025316.mp4  3397.150
 
 
 V2.0.1
-1.修改bug: 复制缩小后的视频时，U、V分量x偏移不正确
\ No newline at end of file
+1.修改bug: 复制缩小后的视频时，U、V分量x偏移不正确
+
+V2.0.2
+1.修改学生视频为320x240，老师的视频为240x180时，老师背景有花屏
+2.修改老师和学生视频都为240x180视频时，视频宽度仍为240, 且有花屏
+3.只有一路视频时，默认合成为上下布局
\ No newline at end of file

@@ -1050,7 +1050,7 @@ int process_av_files(char * record_info, int piptype)
 	av_register_all();
 	avfilter_register_all();
 
-	bool one2one = max_audio == 2;
+	bool one2one = max_audio <= 2;
 	if (1 == piptype) {
 		one2one = true;
 		printf("using one2one layout\n");
@@ -1143,7 +1143,7 @@ int process_av_files(char * record_info, int piptype)
 int main(int argc, char * argv[])
 {
 	if (argc < 2) {
-		printf("   merge_pip 2.0.1\n");
+		printf("   merge_pip 2.0.2\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}]", argv[0]);
 		printf("\n\n");