Mark mutable static data const where appropriate.

avprobe.c

@@ -48,13 +48,13 @@ static const OptionDef options[];
 static const char *input_filename;
 static AVInputFormat *iformat = NULL;
 
-static const char *binary_unit_prefixes [] = { "", "Ki", "Mi", "Gi", "Ti", "Pi" };
-static const char *decimal_unit_prefixes[] = { "", "K" , "M" , "G" , "T" , "P"  };
+static const char *const binary_unit_prefixes [] = { "", "Ki", "Mi", "Gi", "Ti", "Pi" };
+static const char *const decimal_unit_prefixes[] = { "", "K" , "M" , "G" , "T" , "P"  };
 
-static const char *unit_second_str          = "s"    ;
-static const char *unit_hertz_str           = "Hz"   ;
-static const char *unit_byte_str            = "byte" ;
-static const char *unit_bit_per_second_str  = "bit/s";
+static const char unit_second_str[]         = "s"    ;
+static const char unit_hertz_str[]          = "Hz"   ;
+static const char unit_byte_str[]           = "byte" ;
+static const char unit_bit_per_second_str[] = "bit/s";
 
 void exit_program(int ret)
 {

avserver.c

@@ -1865,7 +1865,7 @@ static int http_parse_request(HTTPContext *c)
 
 static void fmt_bytecount(AVIOContext *pb, int64_t count)
 {
-    static const char *suffix = " kMGTP";
+    static const char suffix[] = " kMGTP";
     const char *s;
 
     for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++);

libavcodec/aacdec.c

@@ -1015,7 +1015,7 @@ static int decode_scalefactors(AACContext *ac, float sf[120], GetBitContext *gb,
     int offset[3] = { global_gain, global_gain - 90, 0 };
     int clipped_offset;
     int noise_flag = 1;
-    static const char *sf_str[3] = { "Global gain", "Noise gain", "Intensity stereo position" };
+    static const char *const sf_str[3] = { "Global gain", "Noise gain", "Intensity stereo position" };
     for (g = 0; g < ics->num_window_groups; g++) {
         for (i = 0; i < ics->max_sfb;) {
             int run_end = band_type_run_end[idx];

libavcodec/libvpxenc.c

@@ -66,7 +66,7 @@ typedef struct VP8EncoderContext {
 } VP8Context;
 
 /** String mappings for enum vp8e_enc_control_id */
-static const char *ctlidstr[] = {
+static const char *const ctlidstr[] = {
     [VP8E_UPD_ENTROPY]           = "VP8E_UPD_ENTROPY",
     [VP8E_UPD_REFERENCE]         = "VP8E_UPD_REFERENCE",
     [VP8E_USE_REFERENCE]         = "VP8E_USE_REFERENCE",

libavcodec/libxvid_rc.c

@@ -47,7 +47,7 @@ int ff_xvid_rate_control_init(MpegEncContext *s){
     }
 
     for(i=0; i<s->rc_context.num_entries; i++){
-        static const char *frame_types = " ipbs";
+        static const char frame_types[] = " ipbs";
         char tmp[256];
         RateControlEntry *rce;
 

libavfilter/vf_boxblur.c

@@ -30,7 +30,7 @@
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
 
-static const char *var_names[] = {
+static const char *const var_names[] = {
     "w",
     "h",
     "cw",

libavfilter/vf_crop.c

@@ -32,7 +32,7 @@
 #include "libavutil/imgutils.h"
 #include "libavutil/mathematics.h"
 
-static const char *var_names[] = {
+static const char *const var_names[] = {
     "E",
     "PHI",
     "PI",

libavfilter/vf_drawtext.c

@@ -49,7 +49,7 @@
 #include FT_FREETYPE_H
 #include FT_GLYPH_H
 
-static const char *var_names[] = {
+static const char *const var_names[] = {
     "E",
     "PHI",
     "PI",
@@ -64,8 +64,8 @@ static const char *var_names[] = {
     NULL
 };
 
-static const char *fun2_names[] = {
-    "rand",
+static const char *const fun2_names[] = {
+    "rand"
 };
 
 static double drand(void *opaque, double min, double max)

libavfilter/vf_lut.c

@@ -31,7 +31,7 @@
 #include "avfilter.h"
 #include "internal.h"
 
-static const char *var_names[] = {
+static const char *const var_names[] = {
     "E",
     "PHI",
     "PI",

libavfilter/vf_overlay.c

@@ -33,7 +33,7 @@
 #include "libavutil/mathematics.h"
 #include "internal.h"
 
-static const char *var_names[] = {
+static const char *const var_names[] = {
     "E",
     "PHI",
     "PI",

libavfilter/vf_pad.c

@@ -35,7 +35,7 @@
 #include "libavutil/mathematics.h"
 #include "drawutils.h"
 
-static const char *var_names[] = {
+static const char *const var_names[] = {
     "PI",
     "PHI",
     "E",

libavfilter/vf_scale.c

@@ -30,7 +30,7 @@
 #include "libavutil/pixdesc.h"
 #include "libswscale/swscale.h"
 
-static const char *var_names[] = {
+static const char *const var_names[] = {
     "PI",
     "PHI",
     "E",

libavfilter/vf_select.c

@@ -28,7 +28,7 @@
 #include "libavutil/mathematics.h"
 #include "avfilter.h"
 
-static const char *var_names[] = {
+static const char *const var_names[] = {
     "E",                 ///< Euler number
     "PHI",               ///< golden ratio
     "PI",                ///< greek pi

libavfilter/vf_setpts.c

@@ -30,7 +30,7 @@
 #include "libavutil/mathematics.h"
 #include "avfilter.h"
 
-static const char *var_names[] = {
+static const char *const var_names[] = {
     "E",           ///< Euler number
     "INTERLACED",  ///< tell if the current frame is interlaced
     "N",           ///< frame number (starting at zero)

libavfilter/vf_settb.c

@@ -30,7 +30,7 @@
 #include "avfilter.h"
 #include "internal.h"
 
-static const char *var_names[] = {
+static const char *const var_names[] = {
     "E",
     "PHI",
     "PI",

libavfilter/vsrc_nullsrc.c

@@ -27,7 +27,7 @@
 #include "libavutil/parseutils.h"
 #include "avfilter.h"
 
-static const char *var_names[] = {
+static const char *const var_names[] = {
     "E",
     "PHI",
     "PI",

libavformat/matroskadec.c

@@ -514,7 +514,7 @@ static EbmlSyntax matroska_clusters[] = {
     { 0 }
 };
 
-static const char *matroska_doctypes[] = { "matroska", "webm" };
+static const char *const matroska_doctypes[] = { "matroska", "webm" };
 
 /*
  * Return: Whether we reached the end of a level in the hierarchy or not.

libavutil/eval.c

@@ -543,13 +543,13 @@ int av_expr_parse_and_eval(double *d, const char *s,
 #undef printf
 #include <string.h>
 
-static double const_values[] = {
+static const double const_values[] = {
     M_PI,
     M_E,
     0
 };
 
-static const char *const_names[] = {
+static const char *const const_names[] = {
     "PI",
     "E",
     0