解决了语音上传到问题，接下来要解决下载播放问题

Pods/Qiniu/QiniuSDK/Utils/NSData+QNGZip.m

@@ -0,0 +1,95 @@
+//
+//  NSData+QNGZip.m
+//  GZipTest
+//
+//  Created by yangsen on 2020/8/12.
+//  Copyright © 2020 yangsen. All rights reserved.
+//
+
+#import "NSData+QNGZip.h"
+#import <zlib.h>
+
+#pragma clang diagnostic ignored "-Wcast-qual"
+
+@implementation NSData(QNGZip)
+
++ (NSData *)qn_gZip:(NSData *)data{
+    
+    if (data.length == 0 || [self qn_isGzippedData:data]){
+        return data;
+    }
+
+    z_stream stream;
+    stream.opaque = Z_NULL;
+    stream.zalloc = Z_NULL;
+    stream.zfree = Z_NULL;
+    stream.total_out = 0;
+    stream.avail_out = 0;
+    stream.avail_in = (uint)data.length;
+    stream.next_in = (Bytef *)(void *)data.bytes;
+
+    static const NSUInteger chunkSize = 16384;
+
+    NSMutableData *gzippedData = nil;
+    
+    if (deflateInit2(&stream, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 31, 8, Z_DEFAULT_STRATEGY) == Z_OK) {
+        gzippedData = [NSMutableData dataWithLength:chunkSize];
+        while (stream.avail_out == 0) {
+            if (stream.total_out >= gzippedData.length) {
+                gzippedData.length += chunkSize;
+            }
+            stream.next_out = (uint8_t *)gzippedData.mutableBytes + stream.total_out;
+            stream.avail_out = (uInt)(gzippedData.length - stream.total_out);
+            deflate(&stream, Z_FINISH);
+        }
+        deflateEnd(&stream);
+        gzippedData.length = stream.total_out;
+    }
+
+    return gzippedData;
+}
+
++ (NSData *)qn_gUnzip:(NSData *)data{
+    if (data.length == 0 || ![self qn_isGzippedData:data]){
+        return data;
+    }
+
+    z_stream stream;
+    stream.zalloc = Z_NULL;
+    stream.zfree = Z_NULL;
+    stream.total_out = 0;
+    stream.avail_out = 0;
+    stream.avail_in = (uint)data.length;
+    stream.next_in = (Bytef *)data.bytes;
+
+    NSMutableData *gunzippedData = nil;
+    if (inflateInit2(&stream, 47) == Z_OK) {
+        int status = Z_OK;
+        gunzippedData = [NSMutableData dataWithCapacity:data.length * 2];
+        while (status == Z_OK) {
+            if (stream.total_out >= gunzippedData.length) {
+                gunzippedData.length += data.length / 2;
+            }
+            stream.next_out = (uint8_t *)gunzippedData.mutableBytes + stream.total_out;
+            stream.avail_out = (uInt)(gunzippedData.length - stream.total_out);
+            status = inflate (&stream, Z_SYNC_FLUSH);
+        }
+        if (inflateEnd(&stream) == Z_OK) {
+            if (status == Z_STREAM_END) {
+                gunzippedData.length = stream.total_out;
+            }
+        }
+    }
+
+    return gunzippedData;
+}
+
++ (BOOL)qn_isGzippedData:(NSData *)data{
+    if (!data || data.length == 0) {
+        return false;
+    }
+    const UInt8 *bytes = (const UInt8 *)data.bytes;
+    return (data.length >= 2 && bytes[0] == 0x1f && bytes[1] == 0x8b);
+}
+
+@end