diff --git a/libavcodec/oggvorbis.c b/libavcodec/oggvorbis.c
index c32a348243..c42f536ba0 100644
--- a/libavcodec/oggvorbis.c
+++ b/libavcodec/oggvorbis.c
@@ -294,7 +294,7 @@ static int oggvorbis_decode_frame(AVCodecContext *avccontext,
     OggVorbisContext *context = avccontext->priv_data ;
     float **pcm ;
     ogg_packet *op= &context->op;    
-    int samples, total_samples, total_bytes,i;
+    int samples, total_samples, total_bytes;
  
     if(!buf_size){
     //FIXME flush
diff --git a/libavcodec/snow.c b/libavcodec/snow.c
index 62c4653a04..52083112d0 100644
--- a/libavcodec/snow.c
+++ b/libavcodec/snow.c
@@ -500,7 +500,6 @@ static void slice_buffer_init(slice_buffer * buf, int line_count, int max_alloca
 
 static DWTELEM * slice_buffer_load_line(slice_buffer * buf, int line)
 {
-    int i;
     int offset;
     DWTELEM * buffer;
   
@@ -523,7 +522,6 @@ static DWTELEM * slice_buffer_load_line(slice_buffer * buf, int line)
 
 static void slice_buffer_release(slice_buffer * buf, int line)
 {
-    int i;
     int offset;
     DWTELEM * buffer;
 
@@ -933,7 +931,7 @@ static void horizontal_decomposeX(DWTELEM *b, int width){
     DWTELEM temp[width];
     const int width2= width>>1;
     const int w2= (width+1)>>1;
-    int A1,A2,A3,A4, x;
+    int x;
 
     inplace_lift(b, width, COEFFS1, N1, SHIFT1, LX1, 0);
     inplace_lift(b, width, COEFFS2, N2, SHIFT2, LX0, 0);
@@ -952,7 +950,7 @@ static void horizontal_decomposeX(DWTELEM *b, int width){
 static void horizontal_composeX(DWTELEM *b, int width){
     DWTELEM temp[width];
     const int width2= width>>1;
-    int A1,A2,A3,A4, x;
+    int x;
     const int w2= (width+1)>>1;
 
     memcpy(temp, b, width*sizeof(int));
@@ -1010,7 +1008,7 @@ static void spatial_composeX(DWTELEM *buffer, int width, int height, int stride)
 static void horizontal_decompose53i(DWTELEM *b, int width){
     DWTELEM temp[width];
     const int width2= width>>1;
-    int A1,A2,A3,A4, x;
+    int x;
     const int w2= (width+1)>>1;
 
     for(x=0; x<width2; x++){
@@ -1020,6 +1018,8 @@ static void horizontal_decompose53i(DWTELEM *b, int width){
     if(width&1)
         temp[x   ]= b[2*x    ];
 #if 0
+    {
+    int A1,A2,A3,A4;
     A2= temp[1       ];
     A4= temp[0       ];
     A1= temp[0+width2];
@@ -1047,6 +1047,7 @@ static void horizontal_decompose53i(DWTELEM *b, int width){
     A2 += (A1 + A3 + 2)>>2;
     b[width -1] = A3;
     b[width2-1] = A2;
+    }
 #else        
     lift(b+w2, temp+w2, temp, 1, 1, 1, width, -1, 0, 1, 1, 0);
     lift(b   , temp   , b+w2, 1, 1, 1, width,  1, 2, 2, 0, 0);
@@ -1268,9 +1269,10 @@ static void horizontal_compose53i(DWTELEM *b, int width){
     DWTELEM temp[width];
     const int width2= width>>1;
     const int w2= (width+1)>>1;
-    int A1,A2,A3,A4, x;
+    int x;
 
 #if 0
+    int A1,A2,A3,A4;
     A2= temp[1       ];
     A4= temp[0       ];
     A1= temp[0+width2];
@@ -1452,7 +1454,9 @@ static void vertical_compose97i(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *
     int i;
     
     for(i=0; i<width; i++){
+#ifndef lift5
         int r;
+#endif
         b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS;
 #ifdef lift5
         b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS;
@@ -1877,7 +1881,7 @@ static inline void unpack_coeffs(SnowContext *s, SubBand *b, SubBand * parent, i
 
 static inline void decode_subband_slice_buffered(SnowContext *s, SubBand *b, slice_buffer * sb, int start_y, int h, int save_state[1]){
     const int w= b->width;
-    int x,y;
+    int y;
     const int qlog= clip(s->qlog + b->qlog, 0, QROOT*16);
     int qmul= qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT);
     int qadd= (s->qbias*qmul)>>QBIAS_SHIFT;
@@ -2583,7 +2587,6 @@ assert(src_stride > 2*MB_SIZE + 5);
 
     START_TIMER
     
-    int block_index = 0;
     for(y=0; y<b_h; y++){
         //FIXME ugly missue of obmc_stride
         uint8_t *obmc1= obmc + y*obmc_stride;
@@ -2908,7 +2911,7 @@ static void quantize(SnowContext *s, SubBand *b, DWTELEM *src, int stride, int b
     const int qlog= clip(s->qlog + b->qlog, 0, QROOT*16);
     const int qmul= qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT);
     int x,y, thres1, thres2;
-    START_TIMER
+//    START_TIMER
 
     if(s->qlog == LOSSLESS_QLOG) return;
  
@@ -2964,7 +2967,6 @@ static void quantize(SnowContext *s, SubBand *b, DWTELEM *src, int stride, int b
 
 static void dequantize_slice_buffered(SnowContext *s, slice_buffer * sb, SubBand *b, DWTELEM *src, int stride, int start_y, int end_y){
     const int w= b->width;
-    const int h= b->height;
     const int qlog= clip(s->qlog + b->qlog, 0, QROOT*16);
     const int qmul= qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT);
     const int qadd= (s->qbias*qmul)>>QBIAS_SHIFT;
@@ -3042,7 +3044,6 @@ static void decorrelate(SnowContext *s, SubBand *b, DWTELEM *src, int stride, in
 
 static void correlate_slice_buffered(SnowContext *s, slice_buffer * sb, SubBand *b, DWTELEM *src, int stride, int inverse, int use_median, int start_y, int end_y){
     const int w= b->width;
-    const int h= b->height;
     int x,y;
     
 //    START_TIMER
diff --git a/libavcodec/vc9.c b/libavcodec/vc9.c
index 26ff7bb3c8..441dc167be 100644
--- a/libavcodec/vc9.c
+++ b/libavcodec/vc9.c
@@ -1983,7 +1983,7 @@ int vc9_decode_i_mb(VC9Context *v, DCTELEM block[6][64])
 {
     int i, cbp, val;
     uint8_t *coded_val;
-    uint32_t * const mb_type_ptr= &v->s.current_picture.mb_type[ v->s.mb_x + v->s.mb_y*v->s.mb_stride ];
+//    uint32_t * const mb_type_ptr= &v->s.current_picture.mb_type[ v->s.mb_x + v->s.mb_y*v->s.mb_stride ];
 
     v->s.mb_intra = 1;
     cbp = get_vlc2(&v->s.gb, ff_msmp4_mb_i_vlc.table, MB_INTRA_VLC_BITS, 2);
diff --git a/libavformat/ogg.c b/libavformat/ogg.c
index 861596cc0d..58f7c505f6 100644
--- a/libavformat/ogg.c
+++ b/libavformat/ogg.c
@@ -34,7 +34,7 @@ static int ogg_write_header(AVFormatContext *avfcontext)
 {
     OggContext *context = avfcontext->priv_data;
     ogg_packet *op= &context->op;    
-    int n, i;
+    int n;
 
     ogg_stream_init(&context->os, 31415);
     
@@ -44,7 +44,7 @@ static int ogg_write_header(AVFormatContext *avfcontext)
         int headers_len = codec->extradata_size;
         uint8_t *header_start[3];
         int header_len[3];
-        int i, j, hdr_type;
+        int i, j;
         
         av_set_pts_info(avfcontext->streams[n], 60, 1, AV_TIME_BASE);