Update extras.

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 - v0.12.9 - 2020-04-05
+dr_flac - v0.12.10 - 2020-04-10
 
 David Reid - mackron@gmail.com
 
@@ -5879,6 +5879,14 @@ static drflac_bool32 drflac__seek_to_pcm_frame__seek_table(drflac* pFlac, drflac
         iClosestSeekpoint = iSeekpoint;
     }
 
+    /* There's been cases where the seek table contains only zeros. We need to do some basic validation on the closest seekpoint. */
+    if (pFlac->pSeekpoints[iClosestSeekpoint].pcmFrameCount == 0 || pFlac->pSeekpoints[iClosestSeekpoint].pcmFrameCount > pFlac->maxBlockSizeInPCMFrames) {
+        return DRFLAC_FALSE;
+    }
+    if (pFlac->pSeekpoints[iClosestSeekpoint].firstPCMFrame > pFlac->totalPCMFrameCount && pFlac->totalPCMFrameCount > 0) {
+        return DRFLAC_FALSE;
+    }
+
 #if !defined(DR_FLAC_NO_CRC)
     /* At this point we should know the closest seek point. We can use a binary search for this. We need to know the total sample count for this. */
     if (pFlac->totalPCMFrameCount > 0) {
@@ -5888,9 +5896,23 @@ static drflac_bool32 drflac__seek_to_pcm_frame__seek_table(drflac* pFlac, drflac
         byteRangeHi = pFlac->firstFLACFramePosInBytes + (drflac_uint64)((drflac_int64)(pFlac->totalPCMFrameCount * pFlac->channels * pFlac->bitsPerSample)/8.0f);
         byteRangeLo = pFlac->firstFLACFramePosInBytes + pFlac->pSeekpoints[iClosestSeekpoint].flacFrameOffset;
 
+        /*
+        If our closest seek point is not the last one, we only need to search between it and the next one. The section below calculates an appropriate starting
+        value for byteRangeHi which will clamp it appropriately.
+
+        Note that the next seekpoint must have an offset greater than the closest seekpoint because otherwise our binary search algorithm will break down. There
+        have been cases where a seektable consists of seek points where every byte offset is set to 0 which causes problems. If this happens we need to abort.
+        */
         if (iClosestSeekpoint < pFlac->seekpointCount-1) {
-            if (pFlac->pSeekpoints[iClosestSeekpoint+1].firstPCMFrame != (((drflac_uint64)0xFFFFFFFF << 32) | 0xFFFFFFFF)) {   /* Is it a placeholder seekpoint. */
-                byteRangeHi = pFlac->firstFLACFramePosInBytes + pFlac->pSeekpoints[iClosestSeekpoint+1].flacFrameOffset-1; /* Must be zero based. */
+            drflac_uint32 iNextSeekpoint = iClosestSeekpoint + 1;
+
+            /* Basic validation on the seekpoints to ensure they're usable. */
+            if (pFlac->pSeekpoints[iClosestSeekpoint].flacFrameOffset >= pFlac->pSeekpoints[iNextSeekpoint].flacFrameOffset || pFlac->pSeekpoints[iNextSeekpoint].pcmFrameCount == 0) {
+                return DRFLAC_FALSE;    /* The next seekpoint doesn't look right. The seek table cannot be trusted from here. Abort. */
+            }
+
+            if (pFlac->pSeekpoints[iNextSeekpoint].firstPCMFrame != (((drflac_uint64)0xFFFFFFFF << 32) | 0xFFFFFFFF)) { /* Make sure it's not a placeholder seekpoint. */
+                byteRangeHi = pFlac->firstFLACFramePosInBytes + pFlac->pSeekpoints[iNextSeekpoint].flacFrameOffset - 1; /* byteRangeHi must be zero based. */
             }
         }
 
@@ -11692,6 +11714,9 @@ DRFLAC_API drflac_bool32 drflac_next_cuesheet_track(drflac_cuesheet_track_iterat
 /*
 REVISION HISTORY
 ================
+v0.12.10 - 2020-04-10
+  - Fix some bugs when trying to seek with an invalid seek table.
+
 v0.12.9 - 2020-04-05
   - Fix warnings.
 

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 - v0.6.1 - 2020-04-05
+dr_mp3 - v0.6.2 - 2020-04-10
 
 David Reid - mackron@gmail.com
 
@@ -4050,9 +4050,6 @@ static float* drmp3__full_read_and_close_f32(drmp3* pMP3, drmp3_config* pConfig,
 
     DRMP3_ASSERT(pMP3 != NULL);
 
-    pConfig->channels   = pMP3->channels;
-    pConfig->sampleRate = pMP3->sampleRate;
-
     for (;;) {
         drmp3_uint64 framesToReadRightNow = DRMP3_COUNTOF(temp) / pMP3->channels;
         drmp3_uint64 framesJustRead = drmp3_read_pcm_frames_f32(pMP3, framesToReadRightNow, temp);
@@ -4098,7 +4095,7 @@ static float* drmp3__full_read_and_close_f32(drmp3* pMP3, drmp3_config* pConfig,
     }
 
     if (pConfig != NULL) {
-        pConfig->channels = pMP3->channels;
+        pConfig->channels   = pMP3->channels;
         pConfig->sampleRate = pMP3->sampleRate;
     }
 
@@ -4120,9 +4117,6 @@ static drmp3_int16* drmp3__full_read_and_close_s16(drmp3* pMP3, drmp3_config* pC
 
     DRMP3_ASSERT(pMP3 != NULL);
 
-    pConfig->channels   = pMP3->channels;
-    pConfig->sampleRate = pMP3->sampleRate;
-
     for (;;) {
         drmp3_uint64 framesToReadRightNow = DRMP3_COUNTOF(temp) / pMP3->channels;
         drmp3_uint64 framesJustRead = drmp3_read_pcm_frames_s16(pMP3, framesToReadRightNow, temp);
@@ -4168,7 +4162,7 @@ static drmp3_int16* drmp3__full_read_and_close_s16(drmp3* pMP3, drmp3_config* pC
     }
 
     if (pConfig != NULL) {
-        pConfig->channels = pMP3->channels;
+        pConfig->channels   = pMP3->channels;
         pConfig->sampleRate = pMP3->sampleRate;
     }
 
@@ -4349,6 +4343,9 @@ counts rather than sample counts.
 /*
 REVISION HISTORY
 ================
+v0.6.2 - 2020-04-10
+  - Fix a crash in drmp3_open_*_and_read_pcm_frames_*() if the output config object is NULL.
+
 v0.6.1 - 2020-04-05
   - Fix warnings.