clean up unused variable warnings

Change-Id: I9467d7a50eac32d8e8f3a2f26db818e47c93c94b

examples/encoder_tmpl.c

@@ -111,8 +111,6 @@ int main(int argc, char **argv) {
     vpx_codec_ctx_t      codec;
     vpx_codec_enc_cfg_t  cfg;
     int                  frame_cnt = 0;
-    unsigned char        file_hdr[IVF_FILE_HDR_SZ];
-    unsigned char        frame_hdr[IVF_FRAME_HDR_SZ];
     vpx_image_t          raw;
     vpx_codec_err_t      res;
     long                 width;

examples/postproc.txt

@@ -21,7 +21,7 @@ res = vpx_codec_dec_init(&codec, interface, NULL,
 if(res == VPX_CODEC_INCAPABLE) {
     printf("NOTICE: Postproc not supported by %s\n",
            vpx_codec_iface_name(interface));
-    res = vpx_codec_dec_init(&codec, interface, NULL, 0);
+    res = vpx_codec_dec_init(&codec, interface, NULL, flags);
 }
 if(res)
     die_codec(&codec, "Failed to initialize decoder");

libmkv/EbmlWriter.c

@@ -143,7 +143,6 @@ void Ebml_SerializeUTF8(EbmlGlobal *glob, unsigned long class_id, wchar_t *s)
 
 void Ebml_SerializeData(EbmlGlobal *glob, unsigned long class_id, unsigned char *data, unsigned long data_length)
 {
-    unsigned char size = 4;
     Ebml_WriteID(glob, class_id);
     Ebml_WriteLen(glob, data_length);
     Ebml_Write(glob,  data, data_length);

vp8/common/x86/x86_systemdependent.c

@@ -24,10 +24,6 @@ void vp8_arch_x86_common_init(VP8_COMMON *ctx)
 #if CONFIG_RUNTIME_CPU_DETECT
     VP8_COMMON_RTCD *rtcd = &ctx->rtcd;
     int flags = x86_simd_caps();
-    int mmx_enabled = flags & HAS_MMX;
-    int xmm_enabled = flags & HAS_SSE;
-    int wmt_enabled = flags & HAS_SSE2;
-    int SSSE3Enabled = flags & HAS_SSSE3;
 
     /* Note:
      *
@@ -39,7 +35,7 @@ void vp8_arch_x86_common_init(VP8_COMMON *ctx)
     /* Override default functions with fastest ones for this CPU. */
 #if HAVE_MMX
 
-    if (mmx_enabled)
+    if (flags & HAS_MMX)
     {
         rtcd->idct.idct1        = vp8_short_idct4x4llm_1_mmx;
         rtcd->idct.idct16       = vp8_short_idct4x4llm_mmx;
@@ -83,7 +79,7 @@ void vp8_arch_x86_common_init(VP8_COMMON *ctx)
 #endif
 #if HAVE_SSE2
 
-    if (wmt_enabled)
+    if (flags & HAS_SSE2)
     {
         rtcd->recon.recon2      = vp8_recon2b_sse2;
         rtcd->recon.recon4      = vp8_recon4b_sse2;
@@ -122,7 +118,7 @@ void vp8_arch_x86_common_init(VP8_COMMON *ctx)
 
 #if HAVE_SSSE3
 
-    if (SSSE3Enabled)
+    if (flags & HAS_SSSE3)
     {
         rtcd->subpix.sixtap16x16   = vp8_sixtap_predict16x16_ssse3;
         rtcd->subpix.sixtap8x8     = vp8_sixtap_predict8x8_ssse3;

vp8/decoder/arm/dequantize_arm.c

@@ -26,7 +26,6 @@ extern void vp8_dequantize_b_loop_v6(short *Q, short *DQC, short *DQ);
 
 void vp8_dequantize_b_neon(BLOCKD *d)
 {
-    int i;
     short *DQ  = d->dqcoeff;
     short *Q   = d->qcoeff;
     short *DQC = d->dequant;
@@ -38,7 +37,6 @@ void vp8_dequantize_b_neon(BLOCKD *d)
 #if HAVE_ARMV6
 void vp8_dequantize_b_v6(BLOCKD *d)
 {
-    int i;
     short *DQ  = d->dqcoeff;
     short *Q   = d->qcoeff;
     short *DQC = d->dequant;

vp8/decoder/threading.c

@@ -91,7 +91,6 @@ static void decode_macroblock(VP8D_COMP *pbi, MACROBLOCKD *xd, int mb_row, int m
 {
     int eobtotal = 0;
     int i, do_clamp = xd->mode_info_context->mbmi.need_to_clamp_mvs;
-    VP8_COMMON *pc = &pbi->common;
 
     if (xd->mode_info_context->mbmi.mb_skip_coeff)
     {
@@ -478,7 +477,6 @@ void vp8_decoder_create_threads(VP8D_COMP *pbi)
 
 void vp8mt_de_alloc_temp_buffers(VP8D_COMP *pbi, int mb_rows)
 {
-    VP8_COMMON *const pc = & pbi->common;
     int i;
 
     if (pbi->b_multithreaded_rd)
@@ -699,7 +697,6 @@ void vp8mt_decode_mb_rows( VP8D_COMP *pbi, MACROBLOCKD *xd)
     int mb_row;
     VP8_COMMON *pc = &pbi->common;
 
-    int ibc = 0;
     int num_part = 1 << pbi->common.multi_token_partition;
     int i;
     volatile int *last_row_current_mb_col = NULL;

vp8/encoder/encodemb.c

@@ -238,7 +238,7 @@ static void optimize_b(MACROBLOCK *mb, int ib, int type,
     int i0;
     int rc;
     int x;
-    int sz;
+    int sz = 0;
     int next;
     int rdmult;
     int rddiv;

vp8/encoder/rdopt.c

@@ -297,8 +297,6 @@ void vp8_initialize_rd_consts(VP8_COMP *cpi, int Qvalue)
 
 void vp8_auto_select_speed(VP8_COMP *cpi)
 {
-    int used = cpi->oxcf.cpu_used;
-
     int milliseconds_for_compress = (int)(1000000 / cpi->oxcf.frame_rate);
 
     milliseconds_for_compress = milliseconds_for_compress * (16 - cpi->oxcf.cpu_used) / 16;
@@ -319,10 +317,10 @@ void vp8_auto_select_speed(VP8_COMP *cpi)
 
     /*
     // this is done during parameter valid check
-    if( used > 16)
+    if( cpi->oxcf.cpu_used > 16)
-        used = 16;
+        cpi->oxcf.cpu_used = 16;
-    if( used < -16)
+    if( cpi->oxcf.cpu_used < -16)
-        used = -16;
+        cpi->oxcf.cpu_used = -16;
     */
 
     if (cpi->avg_pick_mode_time < milliseconds_for_compress && (cpi->avg_encode_time - cpi->avg_pick_mode_time) < milliseconds_for_compress)

vp8/encoder/ssim.c

@@ -125,8 +125,8 @@ long dssim(unsigned char *s,int sp, unsigned char *r,int rp,
 {
     unsigned long sum_s=0,sum_r=0,sum_sq_s=0,sum_sq_r=0,sum_sxr=0;
     long long ssim3;
-    long long ssim_n,ssim_n1,ssim_n2;
+    long long ssim_n1,ssim_n2;
-    long long ssim_d,ssim_d1,ssim_d2;
+    long long ssim_d1,ssim_d2;
     long long ssim_t1,ssim_t2;
     long long c1, c2;
 
@@ -245,4 +245,4 @@ double vp8_calc_ssimg
     ssim_all = (a * 4 + b + c) /6;
 
     return ssim_all;
-}
+}

vp8/encoder/temporal_filter.c

@@ -149,10 +149,8 @@ static int vp8_temporal_filter_find_matching_mb_c
 )
 {
     MACROBLOCK *x = &cpi->mb;
-    int thissme;
     int step_param;
     int further_steps;
-    int n = 0;
     int sadpb = x->sadperbit16;
     int bestsme = INT_MAX;
     int num00 = 0;
@@ -243,7 +241,6 @@ static void vp8_temporal_filter_iterate_c
     unsigned int filter_weight;
     int mb_cols = cpi->common.mb_cols;
     int mb_rows = cpi->common.mb_rows;
-    int MBs  = cpi->common.MBs;
     int mb_y_offset = 0;
     int mb_uv_offset = 0;
     DECLARE_ALIGNED_ARRAY(16, unsigned int, accumulator, 16*16 + 8*8 + 8*8);
@@ -269,8 +266,7 @@ static void vp8_temporal_filter_iterate_c
 
         for (mb_col = 0; mb_col < mb_cols; mb_col++)
         {
-            int i, j, k, w;
+            int i, j, k;
-            int weight_cap;
             int stride;
 
             vpx_memset(accumulator, 0, 384*sizeof(unsigned int));
@@ -436,7 +432,6 @@ void vp8_temporal_filter_prepare_c
     int frames_to_blur_forward = 0;
     int frames_to_blur = 0;
     int start_frame = 0;
-    unsigned int filtered = 0;
 
     int strength = cpi->oxcf.arnr_strength;
 

vp8/encoder/x86/x86_csystemdependent.c

@@ -138,12 +138,6 @@ void vp8_arch_x86_encoder_init(VP8_COMP *cpi)
 {
 #if CONFIG_RUNTIME_CPU_DETECT
     int flags = x86_simd_caps();
-    int mmx_enabled = flags & HAS_MMX;
-    int xmm_enabled = flags & HAS_SSE;
-    int wmt_enabled = flags & HAS_SSE2;
-    int SSE3Enabled = flags & HAS_SSE3;
-    int SSSE3Enabled = flags & HAS_SSSE3;
-    int SSE4_1Enabled = flags & HAS_SSE4_1;
 
     /* Note:
      *
@@ -154,7 +148,7 @@ void vp8_arch_x86_encoder_init(VP8_COMP *cpi)
 
     /* Override default functions with fastest ones for this CPU. */
 #if HAVE_MMX
-    if (mmx_enabled)
+    if (flags & HAS_MMX)
     {
         cpi->rtcd.variance.sad16x16              = vp8_sad16x16_mmx;
         cpi->rtcd.variance.sad16x8               = vp8_sad16x8_mmx;
@@ -205,7 +199,7 @@ void vp8_arch_x86_encoder_init(VP8_COMP *cpi)
 #endif
 
 #if HAVE_SSE2
-    if (wmt_enabled)
+    if (flags & HAS_SSE2)
     {
         cpi->rtcd.variance.sad16x16              = vp8_sad16x16_wmt;
         cpi->rtcd.variance.sad16x8               = vp8_sad16x8_wmt;
@@ -263,7 +257,7 @@ void vp8_arch_x86_encoder_init(VP8_COMP *cpi)
 #endif
 
 #if HAVE_SSE3
-    if (SSE3Enabled)
+    if (flags & HAS_SSE3)
     {
         cpi->rtcd.variance.sad16x16              = vp8_sad16x16_sse3;
         cpi->rtcd.variance.sad16x16x3            = vp8_sad16x16x3_sse3;
@@ -282,7 +276,7 @@ void vp8_arch_x86_encoder_init(VP8_COMP *cpi)
 #endif
 
 #if HAVE_SSSE3
-    if (SSSE3Enabled)
+    if (flags & HAS_SSSE3)
     {
         cpi->rtcd.variance.sad16x16x3            = vp8_sad16x16x3_ssse3;
         cpi->rtcd.variance.sad16x8x3             = vp8_sad16x8x3_ssse3;
@@ -305,7 +299,7 @@ void vp8_arch_x86_encoder_init(VP8_COMP *cpi)
 
 
 #if HAVE_SSE4_1
-    if (SSE4_1Enabled)
+    if (flags & HAS_SSE4_1)
     {
         cpi->rtcd.variance.sad16x16x8            = vp8_sad16x16x8_sse4;
         cpi->rtcd.variance.sad16x8x8             = vp8_sad16x8x8_sse4;

vp8/vp8_dx_iface.c

@@ -618,8 +618,8 @@ static vpx_codec_err_t vp8_set_postproc(vpx_codec_alg_priv_t *ctx,
                                         int ctr_id,
                                         va_list args)
 {
-    vp8_postproc_cfg_t *data = va_arg(args, vp8_postproc_cfg_t *);
 #if CONFIG_POSTPROC
+    vp8_postproc_cfg_t *data = va_arg(args, vp8_postproc_cfg_t *);
 
     if (data)
     {

vpxdec.c

@@ -573,12 +573,10 @@ file_is_webm(struct input_ctx *input,
 {
     unsigned int i, n;
     int          track_type = -1;
-    uint64_t     tstamp=0;
 
     nestegg_io io = {nestegg_read_cb, nestegg_seek_cb, nestegg_tell_cb,
                      input->infile};
     nestegg_video_params params;
-    nestegg_packet * pkt;
 
     if(nestegg_init(&input->nestegg_ctx, io, NULL))
         goto fail;

y4minput.c

@@ -146,7 +146,6 @@ static int y4m_parse_tags(y4m_input *_y4m,char *_tags){
    mpeg2 and jpeg cases (thus requiring no vertical resampling).*/
 static void y4m_42xmpeg2_42xjpeg_helper(unsigned char *_dst,
  const unsigned char *_src,int _c_w,int _c_h){
-  int pli;
   int y;
   int x;
   for(y=0;y<_c_h;y++){
@@ -178,8 +177,6 @@ static void y4m_convert_42xmpeg2_42xjpeg(y4m_input *_y4m,unsigned char *_dst,
   int c_h;
   int c_sz;
   int pli;
-  int y;
-  int x;
   /*Skip past the luma data.*/
   _dst+=_y4m->pic_w*_y4m->pic_h;
   /*Compute the size of each chroma plane.*/
@@ -396,8 +393,6 @@ static void y4m_convert_422jpeg_420jpeg(y4m_input *_y4m,unsigned char *_dst,
   int dst_c_w;
   int dst_c_h;
   int dst_c_sz;
-  int tmp_sz;
-  int pic_sz;
   int pli;
   /*Skip past the luma data.*/
   _dst+=_y4m->pic_w*_y4m->pic_h;
@@ -461,12 +456,9 @@ static void y4m_convert_422_420jpeg(y4m_input *_y4m,unsigned char *_dst,
   int            c_w;
   int            c_h;
   int            c_sz;
-  int            dst_c_w;
   int            dst_c_h;
   int            dst_c_sz;
   int            pli;
-  int            y;
-  int            x;
   /*Skip past the luma data.*/
   _dst+=_y4m->pic_w*_y4m->pic_h;
   /*Compute the size of each chroma plane.*/
@@ -821,8 +813,6 @@ void y4m_input_close(y4m_input *_y4m){
 int y4m_input_fetch_frame(y4m_input *_y4m,FILE *_fin,vpx_image_t *_img){
   char frame[6];
   int  pic_sz;
-  int  frame_c_w;
-  int  frame_c_h;
   int  c_w;
   int  c_h;
   int  c_sz;