Update dr_wav, dr_flac and dr_mp3.

extras/dr_flac.h

 /*
 FLAC audio decoder. Choice of public domain or MIT-0. See license statements at the end of this file.
-dr_flac - v0.12.3 - 2019-12-02
+dr_flac - v0.12.4 - 2020-01-29
 
 David Reid - mackron@gmail.com
 */
@@ -4679,6 +4679,7 @@ static drflac_bool32 drflac__read_next_flac_frame_header(drflac_bs* bs, drflac_u
         }
 
 
+        DRFLAC_ASSERT(blockSize > 0);
         if (blockSize == 1) {
             header->blockSizeInPCMFrames = 192;
         } else if (blockSize >= 2 && blockSize <= 5) {
@@ -10320,7 +10321,7 @@ drflac_bool32 drflac_seek_to_pcm_frame(drflac* pFlac, drflac_uint64 pcmFrameInde
 #endif
         {
             /* First try seeking via the seek table. If this fails, fall back to a brute force seek which is much slower. */
-            if (!wasSuccessful && !pFlac->_noSeekTableSeek) {
+            if (/*!wasSuccessful && */!pFlac->_noSeekTableSeek) {
                 wasSuccessful = drflac__seek_to_pcm_frame__seek_table(pFlac, pcmFrameIndex);
             }
 
@@ -10737,6 +10738,9 @@ drflac_bool32 drflac_next_cuesheet_track(drflac_cuesheet_track_iterator* pIter,
 /*
 REVISION HISTORY
 ================
+v0.12.4 - 2020-01-29
+  - Silence some static analysis warnings.
+
 v0.12.3 - 2019-12-02
   - Fix some warnings when compiling with GCC and the -Og flag.
   - Fix a crash in out-of-memory situations.
@@ -11041,7 +11045,7 @@ For more information, please refer to <http://unlicense.org/>
 ===============================================================================
 ALTERNATIVE 2 - MIT No Attribution
 ===============================================================================
-Copyright 2018 David Reid
+Copyright 2020 David Reid
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in

extras/dr_mp3.h

 /*
 MP3 audio decoder. Choice of public domain or MIT-0. See license statements at the end of this file.
-dr_mp3 - v0.5.4 - 2019-12-02
+dr_mp3 - v0.5.5 - 2020-01-29
 
 David Reid - mackron@gmail.com
 
@@ -823,7 +823,7 @@ static void drmp3_L12_read_scalefactors(drmp3_bs *bs, drmp3_uint8 *pba, drmp3_ui
             if (mask & m)
             {
                 int b = drmp3_bs_get_bits(bs, 6);
-                s = g_deq_L12[ba*3 - 6 + b % 3]*(1 << 21 >> b/3);
+                s = g_deq_L12[ba*3 - 6 + b % 3]*(int)(1 << 21 >> b/3);
             }
             *scf++ = s;
         }
@@ -3890,6 +3890,7 @@ drmp3_int16* drmp3__full_read_and_close_s16(drmp3* pMP3, drmp3_config* pConfig,
             }
 
             pFrames = pNewFrames;
+            framesCapacity = newFramesCap;
         }
 
         DRMP3_COPY_MEMORY(pFrames + totalFramesRead*pMP3->channels, temp, (size_t)(framesJustRead*pMP3->channels*sizeof(drmp3_int16)));
@@ -4009,6 +4010,9 @@ DIFFERENCES BETWEEN minimp3 AND dr_mp3
 /*
 REVISION HISTORY
 ================
+v0.5.5 - 2020-01-29
+  - Fix a memory allocation bug in high level s16 decoding APIs.
+
 v0.5.4 - 2019-12-02
   - Fix a possible null pointer dereference when using custom memory allocators for realloc().
 
@@ -4182,7 +4186,7 @@ For more information, please refer to <http://unlicense.org/>
 ===============================================================================
 ALTERNATIVE 2 - MIT No Attribution
 ===============================================================================
-Copyright 2018 David Reid
+Copyright 2020 David Reid
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in

extras/dr_wav.h

 /*
 WAV audio loader and writer. Choice of public domain or MIT-0. See license statements at the end of this file.
-dr_wav - v0.11.3 - 2020-01-12
+dr_wav - v0.11.4 - 2020-01-29
 
 David Reid - mackron@gmail.com
 */
@@ -1100,14 +1100,14 @@ static const drwav_uint8 drwavGUID_W64_SMPL[16] = {0x73,0x6D,0x70,0x6C, 0xF3,0xA
 
 static DRWAV_INLINE drwav_bool32 drwav__guid_equal(const drwav_uint8 a[16], const drwav_uint8 b[16])
 {
-    const drwav_uint32* a32 = (const drwav_uint32*)a;
-    const drwav_uint32* b32 = (const drwav_uint32*)b;
+    int i;
+    for (i = 0; i < 16; i += 1) {
+        if (a[i] != b[i]) {
+            return DRWAV_FALSE;
+        }
+    }
 
-    return
-        a32[0] == b32[0] &&
-        a32[1] == b32[1] &&
-        a32[2] == b32[2] &&
-        a32[3] == b32[3];
+    return DRWAV_TRUE;
 }
 
 static DRWAV_INLINE drwav_bool32 drwav__fourcc_equal(const unsigned char* a, const char* b)
@@ -3579,7 +3579,8 @@ static void drwav__pcm_to_s16(drwav_int16* pOut, const unsigned char* pIn, size_
         unsigned int shift  = (8 - bytesPerSample) * 8;
 
         unsigned int j;
-        for (j = 0; j < bytesPerSample && j < 8; j += 1) {
+        for (j = 0; j < bytesPerSample; j += 1) {
+            DRWAV_ASSERT(j < 8);
             sample |= (drwav_uint64)(pIn[j]) << shift;
             shift  += 8;
         }
@@ -3901,7 +3902,8 @@ static void drwav__pcm_to_f32(float* pOut, const unsigned char* pIn, size_t samp
         unsigned int shift  = (8 - bytesPerSample) * 8;
 
         unsigned int j;
-        for (j = 0; j < bytesPerSample && j < 8; j += 1) {
+        for (j = 0; j < bytesPerSample; j += 1) {
+            DRWAV_ASSERT(j < 8);
             sample |= (drwav_uint64)(pIn[j]) << shift;
             shift  += 8;
         }
@@ -4051,7 +4053,7 @@ drwav_uint64 drwav_read_pcm_frames_f32__alaw(drwav* pWav, drwav_uint64 framesToR
 
     totalFramesRead = 0;
 
-    while (bytesPerFrame > 0) {
+    while (framesToRead > 0) {
         drwav_uint64 framesRead = drwav_read_pcm_frames(pWav, drwav_min(framesToRead, sizeof(sampleData)/bytesPerFrame), sampleData);
         if (framesRead == 0) {
             break;
@@ -4303,7 +4305,8 @@ static void drwav__pcm_to_s32(drwav_int32* pOut, const unsigned char* pIn, size_
         unsigned int shift  = (8 - bytesPerSample) * 8;
 
         unsigned int j;
-        for (j = 0; j < bytesPerSample && j < 8; j += 1) {
+        for (j = 0; j < bytesPerSample; j += 1) {
+            DRWAV_ASSERT(j < 8);
             sample |= (drwav_uint64)(pIn[j]) << shift;
             shift  += 8;
         }
@@ -5052,6 +5055,10 @@ void drwav_free(void* p, const drwav_allocation_callbacks* pAllocationCallbacks)
 /*
 REVISION HISTORY
 ================
+v0.11.4 - 2020-01-29
+  - Fix some static analysis warnings.
+  - Fix a bug when reading f32 samples from an A-law encoded stream.
+
 v0.11.3 - 2020-01-12
   - Minor changes to some f32 format conversion routines.
   - Minor bug fix for ADPCM conversion when end of file is reached.