diff --git a/encode/av1encode.c b/encode/av1encode.c
index dd2d9ed..04b4a58 100644
--- a/encode/av1encode.c
+++ b/encode/av1encode.c
@@ -527,7 +527,6 @@ static  pthread_mutex_t encode_mutex = PTHREAD_MUTEX_INITIALIZER;
 static  pthread_cond_t  encode_cond = PTHREAD_COND_INITIALIZER;
 static  pthread_t encode_thread;
 
-static  char *coded_fn = NULL;
 static  FILE *coded_fp = NULL, *srcyuv_fp = NULL, *recyuv_fp = NULL;
 static  unsigned long long srcyuv_frames = 0;
 static  int srcyuv_fourcc = VA_FOURCC_IYUV;
@@ -569,22 +568,6 @@ static unsigned int GetTickCount()
     return tv.tv_usec / 1000 + tv.tv_sec * 1000;
 }
 
-static char *fourcc_to_string(int fourcc)
-{
-    switch (fourcc) {
-    case VA_FOURCC_NV12:
-        return "NV12";
-    case VA_FOURCC_IYUV:
-        return "IYUV";
-    case VA_FOURCC_YV12:
-        return "YV12";
-    case VA_FOURCC_UYVY:
-        return "UYVY";
-    default:
-        return "Unknown";
-    }
-}
-
 static int string_to_fourcc(char *str)
 {
     CHECK_NULL(str);
@@ -1831,10 +1814,7 @@ pack_error_resilient(bitstream* bs)
 static void
 pack_ref_frame_flags(bitstream* bs, uint8_t error_resilient_mode, uint8_t isI)
 {
-    uint8_t primary_ref_frame = PRIMARY_REF_NONE;
-    if(isI || error_resilient_mode) 
-        primary_ref_frame = PRIMARY_REF_NONE;
-    else
+    if(!(isI || error_resilient_mode))
         put_ui(bs, 0, 3); //primary_ref_frame
     if (!(fh.frame_type == SWITCH_FRAME || (fh.frame_type == KEY_FRAME && fh.show_frame)))
         put_ui(bs, fh.refresh_frame_flags, NUM_REF_FRAMES);
diff --git a/encode/vp8enc.c b/encode/vp8enc.c
index 8c088fa..a87ffc8 100644
--- a/encode/vp8enc.c
+++ b/encode/vp8enc.c
@@ -677,7 +677,6 @@ void vp8enc_create_EncoderPipe()
 {
     VAEntrypoint entrypoints[5];
     int num_entrypoints;
-    int i;
     VAConfigAttrib conf_attrib[2];
     VASurfaceAttrib surface_attrib;
     int major_ver, minor_ver;
diff --git a/videoprocess/vpp3dlut.cpp b/videoprocess/vpp3dlut.cpp
index a5634a5..9127fed 100755
--- a/videoprocess/vpp3dlut.cpp
+++ b/videoprocess/vpp3dlut.cpp
@@ -1185,7 +1185,6 @@ video_frame_process_scaling(VASurfaceID in_surface_id,
     VAProcPipelineParameterBuffer pipeline_param;
     VARectangle surface_region, output_region;
     VABufferID pipeline_param_buf_id = VA_INVALID_ID;
-    VABufferID filter_param_buf_id = VA_INVALID_ID;
 
     /* Fill pipeline buffer */
     surface_region.x = 0;
diff --git a/videoprocess/vpphdr_tm.cpp b/videoprocess/vpphdr_tm.cpp
index de6b795..1524ca0 100644
--- a/videoprocess/vpphdr_tm.cpp
+++ b/videoprocess/vpphdr_tm.cpp
@@ -152,20 +152,6 @@ read_value_uint32(FILE* fp, const char* field_name, uint32_t* value)
     return 0;
 }
 
-static int8_t
-read_value_float(FILE *fp, const char* field_name, float* value)
-{
-    char str[MAX_LEN];
-    if (read_value_string(fp, field_name, str)) {
-        printf("Failed to find float field: %s \n", field_name);
-        return -1;
-    }
-
-    *value = atof(str);
-
-    return 0;
-}
-
 static VAStatus
 create_surface(VASurfaceID * p_surface_id,
                uint32_t width, uint32_t height,
@@ -524,10 +510,10 @@ bool read_frame_to_surface(FILE *fp, VASurfaceID surface_id)
 
     int i = 0;
 
-    int frame_size = 0, y_size = 0, u_size = 0;
+    int frame_size = 0, y_size = 0;
 
-    unsigned char *y_src = NULL, *u_src = NULL, *v_src = NULL;
-    unsigned char *y_dst = NULL, *u_dst = NULL, *v_dst = NULL;
+    unsigned char *y_src = NULL, *u_src = NULL;
+    unsigned char *y_dst = NULL, *u_dst = NULL;
 
     int bytes_per_pixel = 2;
     size_t n_items;
@@ -554,7 +540,6 @@ bool read_frame_to_surface(FILE *fp, VASurfaceID surface_id)
     case VA_FOURCC_P010:
         frame_size = va_image.width * va_image.height * bytes_per_pixel * 3 / 2;
         y_size = va_image.width * va_image.height * bytes_per_pixel;
-        u_size = (va_image.width / 2 * bytes_per_pixel) * (va_image.height >> 1);
 
         src_buffer = (unsigned char*)malloc(frame_size);
         assert(src_buffer);
@@ -629,10 +614,10 @@ bool write_surface_to_frame(FILE *fp, VASurfaceID surface_id)
 
     int i = 0;
 
-    int frame_size = 0, y_size = 0, u_size = 0;
+    int frame_size = 0, y_size = 0;
 
-    unsigned char *y_src = NULL, *u_src = NULL, *v_src = NULL;
-    unsigned char *y_dst = NULL, *u_dst = NULL, *v_dst = NULL;
+    unsigned char *y_src = NULL, *u_src = NULL;
+    unsigned char *y_dst = NULL, *u_dst = NULL;
 
     int bytes_per_pixel = 2;
 
@@ -664,7 +649,6 @@ bool write_surface_to_frame(FILE *fp, VASurfaceID surface_id)
         dst_buffer = (unsigned char*)malloc(frame_size);
         assert(dst_buffer);
         y_size = va_image.width * va_image.height * bytes_per_pixel;
-        u_size = (va_image.width / 2 * bytes_per_pixel) * (va_image.height >> 1);
         y_dst = dst_buffer;
         u_dst = dst_buffer + y_size; // UV offset for P010
         y_src = (unsigned char*)in_buf + va_image.offsets[0];