kill warnings patch by (Måns Rullgård <mru inprovide com>)

Originally committed as revision 3977 to svn://svn.ffmpeg.org/ffmpeg/trunk

42 files changed, 95 insertions, 86 deletions

diff --git a/ffmpeg.c b/ffmpeg.c
index 98ba75a5f7..6728ab7fc7 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -3740,7 +3740,7 @@ void opt_intra_matrix(const char *arg)
 static void opt_target(const char *arg)
 {
     int norm = -1;
-    static const char const *frame_rates[] = {"25", "30000/1001", "24000/1001"};
+    static const char *const frame_rates[] = {"25", "30000/1001", "24000/1001"};
 
     if(!strncmp(arg, "pal-", 4)) {
         norm = 0;
diff --git a/libavcodec/adx.c b/libavcodec/adx.c
index e41a757266..a52575c13f 100644
--- a/libavcodec/adx.c
+++ b/libavcodec/adx.c
@@ -314,6 +314,7 @@ static int adx_decode_init(AVCodecContext * avctx)
     return 0;
 }
 
+#if 0
 static void dump(unsigned char *buf,size_t len)
 {
     int i;
@@ -324,6 +325,8 @@ static void dump(unsigned char *buf,size_t len)
     }
     av_log(NULL, AV_LOG_ERROR, "\n");
 }
+#endif
+
 static int adx_decode_frame(AVCodecContext *avctx,
                 void *data, int *data_size,
                 uint8_t *buf0, int buf_size)
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 2a02473928..cebc064765 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -2201,6 +2201,8 @@ void avcodec_register_all(void);
 
 void avcodec_flush_buffers(AVCodecContext *avctx);
 
+void avcodec_default_free_buffers(AVCodecContext *s);
+
 /* misc usefull functions */
 
 /**
diff --git a/libavcodec/cabac.h b/libavcodec/cabac.h
index 67fa3b988c..cc03eba960 100644
--- a/libavcodec/cabac.h
+++ b/libavcodec/cabac.h
@@ -264,6 +264,7 @@ static void refill(CABACContext *c){
     c->bytestream+= CABAC_BITS/8;
 }
 
+#if 0 /* all use commented */
 static void refill2(CABACContext *c){
     int i, x;
 
@@ -282,7 +283,7 @@ static void refill2(CABACContext *c){
     c->low += x<<i;
     c->bytestream+= CABAC_BITS/8;
 }
-
+#endif
 
 static inline void renorm_cabac_decoder(CABACContext *c){
     while(c->range < (0x200 << CABAC_BITS)){
@@ -303,7 +304,7 @@ static inline void renorm_cabac_decoder_once(CABACContext *c){
 
 static inline int get_cabac(CABACContext *c, uint8_t * const state){
     int RangeLPS= c->lps_range[*state][c->range>>(CABAC_BITS+7)]<<(CABAC_BITS+1);
-    int bit, lps_mask;
+    int bit, lps_mask attribute_unused;
     
     c->range -= RangeLPS;
 #if 1
diff --git a/libavcodec/cljr.c b/libavcodec/cljr.c
index c17316b3e0..8072eee182 100644
--- a/libavcodec/cljr.c
+++ b/libavcodec/cljr.c
@@ -119,12 +119,14 @@ static int decode_init(AVCodecContext *avctx){
     return 0;
 }
 
+#if 0
 static int encode_init(AVCodecContext *avctx){
 
     common_init(avctx);
     
     return 0;
 }
+#endif
 
 AVCodec cljr_decoder = {
     "cljr",
diff --git a/libavcodec/common.h b/libavcodec/common.h
index ec81297ba2..8268ee79b9 100644
--- a/libavcodec/common.h
+++ b/libavcodec/common.h
@@ -85,6 +85,14 @@ extern const struct AVOption avoptions_workaround_bug[11];
 #endif
 #endif
 
+#ifndef attribute_unused
+#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
+#    define attribute_unused __attribute__((unused))
+#else
+#    define attribute_unused
+#endif
+#endif
+
 #ifndef EMULATE_INTTYPES
 #   include <inttypes.h>
 #else
diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c
index 0fd76a66bd..926832ff16 100644
--- a/libavcodec/dsputil.c
+++ b/libavcodec/dsputil.c
@@ -31,6 +31,9 @@
 #include "simple_idct.h"
 #include "faandct.h"
 
+/* snow.c */
+void ff_spatial_dwt(int *buffer, int width, int height, int stride, int type, int decomposition_count);
+
 uint8_t cropTbl[256 + 2 * MAX_NEG_CROP] = {0, };
 uint32_t squareTbl[512] = {0, };
 
@@ -2378,7 +2381,7 @@ H264_MC(avg_, 16)
 #define op_scale2(x)  dst[x] = clip_uint8( (src[x]*weights + dst[x]*weightd + offset) >> (log2_denom+1))
 #define H264_WEIGHT(W,H) \
 static void weight_h264_pixels ## W ## x ## H ## _c(uint8_t *block, int stride, int log2_denom, int weight, int offset){ \
-    int x, y; \
+    int attribute_unused x, y; \
     offset <<= log2_denom; \
     if(log2_denom) offset += 1<<(log2_denom-1); \
     for(y=0; y<H; y++, block += stride){ \
@@ -2404,7 +2407,7 @@ static void weight_h264_pixels ## W ## x ## H ## _c(uint8_t *block, int stride,
     } \
 } \
 static void biweight_h264_pixels ## W ## x ## H ## _c(uint8_t *dst, uint8_t *src, int stride, int log2_denom, int weightd, int weights, int offsetd, int offsets){ \
-    int x, y; \
+    int attribute_unused x, y; \
     int offset = (offsets + offsetd + 1) >> 1; \
     offset = ((offset << 1) + 1) << log2_denom; \
     for(y=0; y<H; y++, dst += stride, src += stride){ \
diff --git a/libavcodec/faad.c b/libavcodec/faad.c
index 236b250d5d..eff051bd45 100644
--- a/libavcodec/faad.c
+++ b/libavcodec/faad.c
@@ -86,7 +86,7 @@ typedef struct {
 		                         faacDecFrameInfo *hInfo,
 		                         unsigned char *buffer,
 								 unsigned long buffer_size);
-	unsigned char* FAADAPI (*faacDecGetErrorMessage)(unsigned char errcode);
+	char* FAADAPI (*faacDecGetErrorMessage)(unsigned char errcode);
 #endif
     
     void FAADAPI (*faacDecClose)(faacDecHandle hDecoder);
@@ -126,11 +126,6 @@ static int faac_init_mp4(AVCodecContext *avctx)
     return r;
 }
 
-static int faac_init_aac(AVCodecContext *avctx)
-{
-    return 0;
-}
-
 static int faac_decode_frame(AVCodecContext *avctx,
                              void *data, int *data_size,
                              uint8_t *buf, int buf_size)
@@ -239,7 +234,7 @@ static int faac_decode_init(AVCodecContext *avctx)
 				       unsigned char*)));
 	dfaac(Decode, (void *FAADAPI (*)(faacDecHandle, faacDecFrameInfo*,
 		             unsigned char*, unsigned long)));
-	dfaac(GetErrorMessage, (unsigned char* FAADAPI (*)(unsigned char)));
+	dfaac(GetErrorMessage, (char* FAADAPI (*)(unsigned char)));
 #endif
 #undef dfacc
 
diff --git a/libavcodec/flac.c b/libavcodec/flac.c
index a640b900b4..de1c5255ce 100644
--- a/libavcodec/flac.c
+++ b/libavcodec/flac.c
@@ -143,6 +143,7 @@ static int64_t get_utf8(GetBitContext *gb)
     return val;
 }
 
+#if 0
 static int skip_utf8(GetBitContext *gb)
 {
     int ones=0, bytes;
@@ -163,6 +164,7 @@ static int skip_utf8(GetBitContext *gb)
     }
     return 0;
 }
+#endif
 
 static int get_crc8(const uint8_t *buf, int count){
     int crc=0;
diff --git a/libavcodec/h263.c b/libavcodec/h263.c
index ad496344b9..d0a6e95347 100644
--- a/libavcodec/h263.c
+++ b/libavcodec/h263.c
@@ -1940,7 +1940,6 @@ static void init_uni_h263_rl_tab(RLTable *rl, uint32_t *bits_tab, uint8_t *len_t
                 int level= slevel < 0 ? -slevel : slevel;
                 int sign= slevel < 0 ? 1 : 0;
                 int bits, len, code;
-                int level1, run1;
                 
                 len_tab[index]= 100;
                      
diff --git a/libavcodec/mem.c b/libavcodec/mem.c
index 04fcd5b395..462d674e45 100644
--- a/libavcodec/mem.c
+++ b/libavcodec/mem.c
@@ -45,7 +45,9 @@
 void *av_malloc(unsigned int size)
 {
     void *ptr;
+#ifdef MEMALIGN_HACK
     int diff;
+#endif
 
     /* lets disallow possible ambiguous cases */
     if(size > INT_MAX)
@@ -97,7 +99,10 @@ void *av_malloc(unsigned int size)
  */
 void *av_realloc(void *ptr, unsigned int size)
 {
+#ifdef MEMALIGN_HACK
     int diff;
+#endif
+
     /* lets disallow possible ambiguous cases */
     if(size > INT_MAX)
         return NULL;
diff --git a/libavcodec/mjpeg.c b/libavcodec/mjpeg.c
index 6ea01b3b84..4c2b4793bf 100644
--- a/libavcodec/mjpeg.c
+++ b/libavcodec/mjpeg.c
@@ -676,7 +676,7 @@ static int encode_picture_lossless(AVCodecContext *avctx, unsigned char *buf, in
     if(avctx->pix_fmt == PIX_FMT_RGBA32){
         int x, y, i;
         const int linesize= p->linesize[0];
-        uint16_t (*buffer)[4]= s->rd_scratchpad;
+        uint16_t (*buffer)[4]= (void *) s->rd_scratchpad;
         int left[3], top[3], topleft[3];
 
         for(i=0; i<3; i++){
diff --git a/libavcodec/motion_est.c b/libavcodec/motion_est.c
index eebd8c2a34..2c1ff50946 100644
--- a/libavcodec/motion_est.c
+++ b/libavcodec/motion_est.c
@@ -317,6 +317,7 @@ static inline void no_motion_search(MpegEncContext * s,
     *my_ptr = 16 * s->mb_y;
 }
 
+#if 0  /* the use of these functions is inside #if 0 */
 static int full_motion_search(MpegEncContext * s,
                               int *mx_ptr, int *my_ptr, int range,
                               int xmin, int ymin, int xmax, int ymax, uint8_t *ref_picture)
@@ -537,7 +538,7 @@ static int phods_motion_search(MpegEncContext * s,
     *my_ptr = my;
     return dminy;
 }
-
+#endif /* 0 */
 
 #define Z_THRESHOLD 256
 
@@ -730,7 +731,6 @@ static inline int h263_mv4_search(MpegEncContext *s, int mx, int my, int shift)
     int dmin_sum=0, mx4_sum=0, my4_sum=0;
     int same=1;
     const int stride= c->stride;
-    const int uvstride= c->uvstride;
     uint8_t *mv_penalty= c->current_mv_penalty;
 
     init_mv4_ref(c);
@@ -881,7 +881,6 @@ static int interlaced_search(MpegEncContext *s, int ref_index,
     uint8_t * const mv_penalty= c->current_mv_penalty;
     int same=1;
     const int stride= 2*s->linesize;
-    const int uvstride= 2*s->uvlinesize;
     int dmin_sum= 0;
     const int mot_stride= s->mb_stride;
     const int xy= s->mb_x + s->mb_y*mot_stride;
diff --git a/libavcodec/motion_est_template.c b/libavcodec/motion_est_template.c
index 1f5c742a41..d8101ec334 100644
--- a/libavcodec/motion_est_template.c
+++ b/libavcodec/motion_est_template.c
@@ -25,11 +25,11 @@
 
 //lets hope gcc will remove the unused vars ...(gcc 3.2.2 seems to do it ...)
 #define LOAD_COMMON\
-    uint32_t * const score_map= c->score_map;\
-    const int xmin= c->xmin;\
-    const int ymin= c->ymin;\
-    const int xmax= c->xmax;\
-    const int ymax= c->ymax;\
+    uint32_t attribute_unused * const score_map= c->score_map;\
+    const int attribute_unused xmin= c->xmin;\
+    const int attribute_unused ymin= c->ymin;\
+    const int attribute_unused xmax= c->xmax;\
+    const int attribute_unused ymax= c->ymax;\
     uint8_t *mv_penalty= c->current_mv_penalty;\
     const int pred_x= c->pred_x;\
     const int pred_y= c->pred_y;\
diff --git a/libavcodec/mp3lameaudio.c b/libavcodec/mp3lameaudio.c
index ce02ff0c10..3f10a1025c 100644
--- a/libavcodec/mp3lameaudio.c
+++ b/libavcodec/mp3lameaudio.c
@@ -132,7 +132,7 @@ int MP3lame_encode_frame(AVCodecContext *avctx,
                      unsigned char *frame, int buf_size, void *data)
 {
 	Mp3AudioContext *s = avctx->priv_data;
-	int len, i;
+	int len;
 	int lame_result;
 
 	/* lame 3.91 dies on '1-channel interleaved' data */
diff --git a/libavcodec/mpegaudio.c b/libavcodec/mpegaudio.c
index e4b2576356..d521acc588 100644
--- a/libavcodec/mpegaudio.c
+++ b/libavcodec/mpegaudio.c
@@ -468,6 +468,7 @@ static void compute_scale_factors(unsigned char scale_code[SBLIMIT],
             break;
         default:
             assert(0); //cant happen
+            code = 0;           /* kill warning */
         }
         
 #if 0
diff --git a/libavcodec/mpegaudiodec.c b/libavcodec/mpegaudiodec.c
index bfff570a2d..d828ed65e9 100644
--- a/libavcodec/mpegaudiodec.c
+++ b/libavcodec/mpegaudiodec.c
@@ -257,11 +257,13 @@ static inline int l3_unscale(int value, int exponent)
 
 static int dev_4_3_coefs[DEV_ORDER];
 
+#if 0 /* unused */
 static int pow_mult3[3] = {
     POW_FIX(1.0),
     POW_FIX(1.25992104989487316476),
     POW_FIX(1.58740105196819947474),
 };
+#endif
 
 static void int_pow_init(void)
 {
@@ -274,6 +276,7 @@ static void int_pow_init(void)
     }
 }
 
+#if 0 /* unused, remove? */
 /* return the mantissa and the binary exponent */
 static int int_pow(int i, int *exp_ptr)
 {
@@ -318,6 +321,7 @@ static int int_pow(int i, int *exp_ptr)
     *exp_ptr = eq;
     return a;
 }
+#endif
 
 static int decode_init(AVCodecContext * avctx)
 {
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 0860fd97ad..002c2a64d7 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -1820,7 +1820,7 @@ void ff_print_debug_info(MpegEncContext *s, AVFrame *pict){
                       for(i=0; i<4; i++){
                         int sx= mb_x*16 + 4 + 8*(i&1);
                         int sy= mb_y*16 + 4 + 8*(i>>1);
-                        int xy= (mb_x*2 + (i&1) + (mb_y*2 + (i>>1))*mv_stride) << mv_sample_log2-1;
+                        int xy= (mb_x*2 + (i&1) + (mb_y*2 + (i>>1))*mv_stride) << (mv_sample_log2-1);
                         int mx= (pict->motion_val[direction][xy][0]>>shift) + sx;
                         int my= (pict->motion_val[direction][xy][1]>>shift) + sy;
                         draw_arrow(ptr, sx, sy, mx, my, width, height, s->linesize, 100);
@@ -1830,7 +1830,7 @@ void ff_print_debug_info(MpegEncContext *s, AVFrame *pict){
                       for(i=0; i<2; i++){
                         int sx=mb_x*16 + 8;
                         int sy=mb_y*16 + 4 + 8*i;
-                        int xy= (mb_x*2 + (mb_y*2 + i)*mv_stride) << mv_sample_log2-1;
+                        int xy= (mb_x*2 + (mb_y*2 + i)*mv_stride) << (mv_sample_log2-1);
                         int mx=(pict->motion_val[direction][xy][0]>>shift);
                         int my=(pict->motion_val[direction][xy][1]>>shift);
                         
@@ -1844,7 +1844,7 @@ void ff_print_debug_info(MpegEncContext *s, AVFrame *pict){
                       for(i=0; i<2; i++){
                         int sx=mb_x*16 + 4 + 8*i;
                         int sy=mb_y*16 + 8;
-                        int xy= (mb_x*2 + i + mb_y*2*mv_stride) << mv_sample_log2-1;
+                        int xy= (mb_x*2 + i + mb_y*2*mv_stride) << (mv_sample_log2-1);
                         int mx=(pict->motion_val[direction][xy][0]>>shift);
                         int my=(pict->motion_val[direction][xy][1]>>shift);
                         
@@ -2077,7 +2077,6 @@ static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){
     int x, y, plane;
     int score=0;
     int64_t score64=0;
-    int64_t threshold;
 
     for(plane=0; plane<3; plane++){
         const int stride= p->linesize[plane];
diff --git a/libavcodec/parser.c b/libavcodec/parser.c
index 780b7043ab..421a95f039 100644
--- a/libavcodec/parser.c
+++ b/libavcodec/parser.c
@@ -504,6 +504,7 @@ typedef struct MpegAudioParseContext {
 #define MPA_HEADER_SIZE 4
 
 /* header + layer + bitrate + freq + lsf/mpeg25 */
+#undef SAME_HEADER_MASK /* mpegaudio.h defines different version */
 #define SAME_HEADER_MASK \
    (0xffe00000 | (3 << 17) | (3 << 10) | (3 << 19))
 
diff --git a/libavcodec/rangecoder.c b/libavcodec/rangecoder.c
index 159607c652..ba3022c45c 100644
--- a/libavcodec/rangecoder.c
+++ b/libavcodec/rangecoder.c
@@ -58,7 +58,7 @@ void ff_init_range_decoder(RangeCoder *c, const uint8_t *buf, int buf_size){
 void ff_build_rac_states(RangeCoder *c, int factor, int max_p){
     const int64_t one= 1LL<<32;
     int64_t p;
-    int last_p8, p8, i, j;
+    int last_p8, p8, i;
 
     memset(c->zero_state, 0, sizeof(c->zero_state));
     memset(c-> one_state, 0, sizeof(c-> one_state));
diff --git a/libavcodec/rangecoder.h b/libavcodec/rangecoder.h
index 1d68b9ac9a..6fd7b43bfb 100644
--- a/libavcodec/rangecoder.h
+++ b/libavcodec/rangecoder.h
@@ -94,7 +94,7 @@ static inline void refill(RangeCoder *c){
 
 static inline int get_rac(RangeCoder *c, uint8_t * const state){
     int range1= (c->range * (*state)) >> 8;
-    int one_mask;
+    int attribute_unused one_mask;
     
     c->range -= range1;
 #if 1
diff --git a/libavcodec/resample.c b/libavcodec/resample.c
index 02c1fd8fe6..77e5f5f47d 100644
--- a/libavcodec/resample.c
+++ b/libavcodec/resample.c
@@ -128,7 +128,6 @@ ReSampleContext *audio_resample_init(int output_channels, int input_channels,
                                       int output_rate, int input_rate)
 {
     ReSampleContext *s;
-    int i;
     
     if ( input_channels > 2)
       {
diff --git a/libavcodec/rv10.c b/libavcodec/rv10.c
index 9fb1e8df1a..884be9c7c9 100644
--- a/libavcodec/rv10.c
+++ b/libavcodec/rv10.c
@@ -287,6 +287,7 @@ void rv20_encode_picture_header(MpegEncContext *s, int picture_number){
     }
 }
 
+#if 0 /* unused, remove? */
 static int get_num(GetBitContext *gb)
 {
     int n, n1;
@@ -299,6 +300,7 @@ static int get_num(GetBitContext *gb)
         return (n << 16) | n1;
     }
 }
+#endif
 
 #endif //CONFIG_ENCODERS
 
diff --git a/libavcodec/sonic.c b/libavcodec/sonic.c
index 3981f3bd7d..d9c05faecd 100644
--- a/libavcodec/sonic.c
+++ b/libavcodec/sonic.c
@@ -845,7 +845,7 @@ static int sonic_decode_close(AVCodecContext *avctx)
 }
 
 static int sonic_decode_frame(AVCodecContext *avctx,
-			    int16_t *data, int *data_size,
+			    void *data, int *data_size,
 			    uint8_t *buf, int buf_size)
 {
     SonicContext *s = avctx->priv_data;
diff --git a/libavcodec/svq1.c b/libavcodec/svq1.c
index f5c3c7774a..068dd51d37 100644
--- a/libavcodec/svq1.c
+++ b/libavcodec/svq1.c
@@ -600,6 +600,7 @@ static uint16_t svq1_packet_checksum (uint8_t *data, int length, int value) {
   return value;
 }
 
+#if 0 /* unused, remove? */
 static uint16_t svq1_component_checksum (uint16_t *pixels, int pitch,
                                          int width, int height, int value) {
   int x, y;
@@ -614,6 +615,7 @@ static uint16_t svq1_component_checksum (uint16_t *pixels, int pitch,
 
   return value;
 }
+#endif
 
 static void svq1_parse_string (GetBitContext *bitbuf, uint8_t *out) {
   uint8_t seed;
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 99de9d38c6..5c9c2425f8 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -677,18 +677,6 @@ AVCodec *avcodec_find_decoder_by_name(const char *name)
     return NULL;
 }
 
-static AVCodec *avcodec_find(enum CodecID id)
-{
-    AVCodec *p;
-    p = first_avcodec;
-    while (p) {
-        if (p->id == id)
-            return p;
-        p = p->next;
-    }
-    return NULL;
-}
-
 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
 {
     const char *codec_name;
diff --git a/libavcodec/vcr1.c b/libavcodec/vcr1.c
index 5a55d9f7fa..442ad91367 100644
--- a/libavcodec/vcr1.c
+++ b/libavcodec/vcr1.c
@@ -151,12 +151,14 @@ static int decode_init(AVCodecContext *avctx){
     return 0;
 }
 
+#if 0
 static int encode_init(AVCodecContext *avctx){
  
     common_init(avctx);
     
     return 0;
 }
+#endif
 
 AVCodec vcr1_decoder = {
     "vcr1",
diff --git a/libavcodec/wmv2.c b/libavcodec/wmv2.c
index 0f505a8f19..b6376d80b6 100644
--- a/libavcodec/wmv2.c
+++ b/libavcodec/wmv2.c
@@ -101,6 +101,7 @@ static int wmv2_encode_init(AVCodecContext *avctx){
     return 0;
 }
 
+#if 0 /* unused, remove? */
 static int wmv2_encode_end(AVCodecContext *avctx){
     
     if(MPV_encode_end(avctx) < 0)
@@ -111,6 +112,7 @@ static int wmv2_encode_end(AVCodecContext *avctx){
     
     return 0;
 }
+#endif
 
 int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number)
 {
diff --git a/libavformat/ffm.c b/libavformat/ffm.c
index 2867d11e0f..7640d656c9 100644
--- a/libavformat/ffm.c
+++ b/libavformat/ffm.c
@@ -261,7 +261,6 @@ static int ffm_write_trailer(AVFormatContext *s)
 {
     ByteIOContext *pb = &s->pb;
     FFMContext *ffm = s->priv_data;
-    int i;
 
     /* flush packets */
     if (ffm->packet_ptr > ffm->packet)
diff --git a/libavformat/flvdec.c b/libavformat/flvdec.c
index 157b50dc64..f9f4fbe40b 100644
--- a/libavformat/flvdec.c
+++ b/libavformat/flvdec.c
@@ -44,7 +44,6 @@ static int flv_read_header(AVFormatContext *s,
                            AVFormatParameters *ap)
 {
     int offset, flags;
-    AVStream *st;
     
     s->ctx_flags |= AVFMTCTX_NOHEADER; //ok we have a header but theres no fps, codec type, sample_rate, ...
 
diff --git a/libavformat/http.c b/libavformat/http.c
index 85b1f319bd..2198cd548d 100644
--- a/libavformat/http.c
+++ b/libavformat/http.c
@@ -49,7 +49,7 @@ typedef struct {
 static int http_connect(URLContext *h, const char *path, const char *hoststr,
                         const char *auth);
 static int http_write(URLContext *h, uint8_t *buf, int size);
-static char *b64_encode( unsigned char *src );
+static char *b64_encode(const unsigned char *src );
 
 
 /* return non zero if error */
@@ -287,7 +287,7 @@ URLProtocol http_protocol = {
  * b64_encode: stolen from VLC's http.c
  *****************************************************************************/
                                                                                 
-static char *b64_encode( unsigned char *src )
+static char *b64_encode( const unsigned char *src )
 {
     static const char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
     unsigned int len= strlen(src);
diff --git a/libavformat/img2.c b/libavformat/img2.c
index fcf7310208..4cfd9eb6ba 100644
--- a/libavformat/img2.c
+++ b/libavformat/img2.c
@@ -97,16 +97,6 @@ static enum CodecID av_str2id(const IdStrMap *tags, const char *str)
     return CODEC_ID_NONE;
 }
 
-static const char *av_id2str(const IdStrMap *tags, enum CodecID id)
-{
-    while (tags->id) {
-        if(tags->id == id)
-            return tags->str;
-        tags++;
-    }
-    return NULL;
-}
-
 /* return -1 if no image found */
 static int find_image_range(int *pfirst_index, int *plast_index, 
                             const char *path)
diff --git a/libavformat/mov.c b/libavformat/mov.c
index 1378b97ec5..87acdd419f 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -415,12 +415,12 @@ static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
 
 static int mov_read_ctab(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
 {
-    unsigned int len;
-    MOV_ctab_t *t;
 #if 1
     url_fskip(pb, atom.size); // for now
 #else
     VERY VERY BROKEN, NEVER execute this, needs rewrite
+    unsigned int len;
+    MOV_ctab_t *t;
     c->ctab = av_realloc(c->ctab, ++c->ctab_size);
     t = c->ctab[c->ctab_size];
     t->seed = get_be32(pb);
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 85965786f9..84ddb466ec 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -793,6 +793,7 @@ static int mov_write_trak_tag(ByteIOContext *pb, MOVTrack* track)
     return updateSize(pb, pos);
 }
 
+#if 0
 /* TODO: Not sorted out, but not necessary either */
 static int mov_write_iods_tag(ByteIOContext *pb, MOVContext *mov)
 {
@@ -806,6 +807,7 @@ static int mov_write_iods_tag(ByteIOContext *pb, MOVContext *mov)
     put_be16(pb, 0x01ff);
     return 0x15;
 }
+#endif
 
 static int mov_write_mvhd_tag(ByteIOContext *pb, MOVContext *mov)
 {
diff --git a/libavformat/mpeg.c b/libavformat/mpeg.c
index 6399cf3062..acb33dde6c 100644
--- a/libavformat/mpeg.c
+++ b/libavformat/mpeg.c
@@ -530,6 +530,7 @@ static int get_vcd_padding_size(AVFormatContext *ctx, int64_t pts)
 }
 
 
+#if 0 /* unused, remove? */
 /* return the exact available payload size for the next packet for
    stream 'stream_index'. 'pts' and 'dts' are only used to know if
    timestamps are needed in the packet header. */
@@ -613,6 +614,7 @@ static int get_packet_payload_size(AVFormatContext *ctx, int stream_index,
     }
     return s->packet_size - buf_index; 
 }
+#endif
 
 /* Write an MPEG padding packet header. */
 static void put_padding_packet(AVFormatContext *ctx, ByteIOContext *pb,int packet_bytes)
@@ -979,6 +981,7 @@ static void put_vcd_padding_sector(AVFormatContext *ctx)
     s->packet_number++;
 }
 
+#if 0 /* unused, remove? */
 static int64_t get_vcd_scr(AVFormatContext *ctx,int stream_index,int64_t pts)
 {
     MpegMuxContext *s = ctx->priv_data;
@@ -998,6 +1001,7 @@ static int64_t get_vcd_scr(AVFormatContext *ctx,int stream_index,int64_t pts)
 
     return scr;
 }    
+#endif
 
 static int remove_decoded_packets(AVFormatContext *ctx, int64_t scr){
 //    MpegMuxContext *s = ctx->priv_data;
@@ -1319,6 +1323,7 @@ static int find_next_start_code(ByteIOContext *pb, int *size_ptr,
     return val;
 }
 
+#if 0 /* unused, remove? */
 /* XXX: optimize */
 static int find_prev_start_code(ByteIOContext *pb, int *size_ptr)
 {
@@ -1351,6 +1356,7 @@ static int find_prev_start_code(ByteIOContext *pb, int *size_ptr)
     *size_ptr = pos_start - pos;
     return start_code;
 }
+#endif
 
 /* read the next PES header. Return its position in ppos 
    (if not NULL), and its start code, pts and dts.
diff --git a/libavformat/nsvdec.c b/libavformat/nsvdec.c
index 555a71a2ed..66a5647af4 100644
--- a/libavformat/nsvdec.c
+++ b/libavformat/nsvdec.c
@@ -280,16 +280,11 @@ static int nsv_parse_NSVf_header(AVFormatContext *s, AVFormatParameters *ap)
 {
     NSVContext *nsv = s->priv_data;
     ByteIOContext *pb = &s->pb;
-    uint32_t tag, tag1, handler;
-    int codec_type, stream_index, frame_period, bit_rate, scale, rate;
-    unsigned int file_size, size, nb_frames;
+    unsigned int file_size, size;
     int64_t duration;
     int strings_size;
     int table_entries;
     int table_entries_used;
-    int i, n;
-    AVStream *st;
-    NSVStream *ast;
 
     PRINT(("%s()\n", __FUNCTION__));
 
@@ -501,14 +496,7 @@ fail:
 static int nsv_read_header(AVFormatContext *s, AVFormatParameters *ap)
 {
     NSVContext *nsv = s->priv_data;
-    ByteIOContext *pb = &s->pb;
-    uint32_t tag, tag1, handler;
-    int codec_type, stream_index, frame_period, bit_rate, scale, rate;
-    unsigned int size, nb_frames;
-    int table_entries;
-    int i, n, err;
-    AVStream *st;
-    NSVStream *ast;
+    int i, err;
 
     PRINT(("%s()\n", __FUNCTION__));
     PRINT(("filename '%s'\n", s->filename));
@@ -543,7 +531,6 @@ static int nsv_read_chunk(AVFormatContext *s, int fill_header)
     AVStream *st[2] = {NULL, NULL};
     NSVStream *nst;
     AVPacket *pkt;
-    uint32_t v = 0;
     int i, err = 0;
     uint8_t auxcount; /* number of aux metadata, also 4 bits of vsize */
     uint32_t vsize;
@@ -667,7 +654,6 @@ null_chunk_retry:
 static int nsv_read_packet(AVFormatContext *s, AVPacket *pkt)
 {
     NSVContext *nsv = s->priv_data;
-    ByteIOContext *pb = &s->pb;
     int i, err = 0;
 
     PRINT(("%s()\n", __FUNCTION__));
@@ -695,18 +681,20 @@ static int nsv_read_packet(AVFormatContext *s, AVPacket *pkt)
 
 static int nsv_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
 {
+#if 0
     NSVContext *avi = s->priv_data;
     AVStream *st;
     NSVStream *ast;
     int frame_number, i;
     int64_t pos;
+#endif
 
     return -1;
 }
 
 static int nsv_read_close(AVFormatContext *s)
 {
-    int i;
+/*     int i; */
     NSVContext *nsv = s->priv_data;
 
     if (nsv->index_entries)
diff --git a/libavformat/nut.c b/libavformat/nut.c
index f43797582d..2592d320f2 100644
--- a/libavformat/nut.c
+++ b/libavformat/nut.c
@@ -1051,7 +1051,7 @@ static int decode_info_header(NUTContext *nut){
         }
         
         if(!strcmp(type, "v")){
-            int value= get_v(bc);
+            get_v(bc);
         }else{
             if(!strcmp(name, "Author"))
                 get_str(bc, s->author, sizeof(s->author));
diff --git a/libavformat/psxstr.c b/libavformat/psxstr.c
index 57fc97d3a2..eca6316f6c 100644
--- a/libavformat/psxstr.c
+++ b/libavformat/psxstr.c
@@ -107,6 +107,7 @@ static int str_probe(AVProbeData *p)
     return 50;
 }
 
+#if 0
 static void dump(unsigned char *buf,size_t len)
 {
     int i;
@@ -117,6 +118,7 @@ static void dump(unsigned char *buf,size_t len)
     }
     av_log(NULL, AV_LOG_DEBUG, "\n");
 }
+#endif
 
 static int str_read_header(AVFormatContext *s,
                            AVFormatParameters *ap)
diff --git a/libavformat/tcp.c b/libavformat/tcp.c
index 8ec84ec4b6..33702e0ec0 100644
--- a/libavformat/tcp.c
+++ b/libavformat/tcp.c
@@ -57,8 +57,7 @@ static int tcp_open(URLContext *h, const char *uri, int flags)
     struct sockaddr_in dest_addr;
     char hostname[1024], *q;
     int port, fd = -1;
-    TCPContext *s;
-    const char *p;
+    TCPContext *s = NULL;
     fd_set wfds;
     int fd_max, ret;
     struct timeval tv;
diff --git a/libavformat/udp.c b/libavformat/udp.c
index b95f238d26..8b5fc32a2c 100644
--- a/libavformat/udp.c
+++ b/libavformat/udp.c
@@ -160,14 +160,14 @@ int udp_ipv6_set_local(URLContext *h) {
     socklen_t addrlen;
     char sbuf[NI_MAXSERV];
     char hbuf[NI_MAXHOST];
-    struct addrinfo *res0;
+    struct addrinfo *res0 = NULL;
     int family;
                 
     if (s->local_port != 0) {       
         res0 = udp_ipv6_resolve_host(0, s->local_port, SOCK_DGRAM, AF_UNSPEC, AI_PASSIVE);
-        if (res0 == 0) return -1;
+        if (res0 == 0)
+            goto fail;
         family = res0->ai_family;
-        freeaddrinfo(res0);
     } else {
         family = s->dest_addr.ss_family;
     }
@@ -183,6 +183,8 @@ int udp_ipv6_set_local(URLContext *h) {
             perror("bind");
             goto fail;
         }
+        freeaddrinfo(res0);
+        res0 = NULL;
     } 
 
     addrlen = sizeof(clientaddr);
@@ -207,6 +209,8 @@ int udp_ipv6_set_local(URLContext *h) {
 #else
         close(udp_fd);
 #endif
+    if(res0)
+        freeaddrinfo(res0);
     return -1;
 }
 
@@ -274,13 +278,16 @@ int udp_get_file_handle(URLContext *h)
 /* return non zero if error */
 static int udp_open(URLContext *h, const char *uri, int flags)
 {
-    struct sockaddr_in my_addr, my_addr1;
     char hostname[1024];
     int port, udp_fd = -1, tmp;
     UDPContext *s = NULL;
-    int is_output, len;
+    int is_output;
     const char *p;
     char buf[256];
+#ifndef CONFIG_IPV6
+    struct sockaddr_in my_addr, my_addr1;
+    int len;
+#endif
 
     h->is_streamed = 1;
     h->max_packet_size = 1472;
diff --git a/libavformat/utils.c b/libavformat/utils.c
index 3f74ed529b..0e008da974 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -1275,7 +1275,6 @@ av_log(s, AV_LOG_DEBUG, "%Ld %Ld %Ld / %Ld %Ld %Ld target:%Ld limit:%Ld start:%L
 }
 
 static int av_seek_frame_byte(AVFormatContext *s, int stream_index, int64_t pos, int flags){
-    AVInputFormat *avif= s->iformat;
     int64_t pos_min, pos_max;
 #if 0
     AVStream *st;
diff --git a/output_example.c b/output_example.c
index 6f3dcb7379..214ee9fff1 100644
--- a/output_example.c
+++ b/output_example.c
@@ -140,7 +140,6 @@ void get_audio_frame(int16_t *samples, int frame_size, int nb_channels)
 
 void write_audio_frame(AVFormatContext *oc, AVStream *st)
 {
-    int out_size;
     AVCodecContext *c;
     AVPacket pkt;
     av_init_packet(&pkt);