AVAudioPlayer 给出了 mp3 文件的错误

我是

• 下载.mp3 文件并将其存储在我的文档文件夹中

• 使用 AVAudioPlayer 我正在播放音频文件。

我将文件路径转换为 NSData(audioData)并将其链接到 AudioPlayer

NSError* error = nil;
self.audioPlayer = [[AVAudioPlayer alloc]initWithData:audioData error:&error];
    if (error)
    {
        NSLog(@"Error with initWithData: %@", [error localizedDescription]);
    }

打印“操作无法完成。(OSStatus error 2003334207.)”

我想检查下载的文件是否是有效文件，我用 VLC 播放它并且播放效果很好。

如果我记录 NSData，它是..

Printing description of audioData:
<00000018 66747970 33677034 00000000 69736f6d 33677034 00000275 6d6f6f76 0000006c 6d766864 00000000 538580d9 538580d9 000003e8 00000884 00010000 01000000 00000000 00000000 00010000 00000000 00000000 00000000 00010000 00000000 00000000 00000000 40000000 00000000 00000000 00000000 00000000 00000000 00000000 00000002 00000201 7472616b 0000005c 746b6864 00000007 538580d9 538580d9 00000001 00000000 00000884 00000000 00000000 00000000 01000000 00010000 00000000 00000000 00000000 00010000 00000000 00000000 00000000 40000000 00000000 00000000 0000019d 6d646961 00000020 6d646864 00000000 538580d9 538580d9 00001f40 00004420 00000000 0000002c 68646c72 00000000 00000000 736f756e 00000000 00000000 00000000 536f756e 6448616e 646c6500 00000149 6d696e66 00000010 736d6864 00000000 00000000 00000024 64696e66 0000001c 64726566 00000000 00000001 0000000c 75726c20 00000001 0000010d 7374626c 00000045 73747364 00000000 00000001 00000035 73616d72 00000000 00000001 00000000 00000000 00010010 00000000 1f400000 00000011 64616d72 20202000 0083ff00 01000000 20737474 73000000 00000000 02000000 01000000 a0000000 6c000000 a0000000 14737473 7a000000 00000000 20000000 6d000000 34737473 63000000 00000000 03000000 01000000 08000000 01000000 02000000 06000000 01000000 12000000 05000000 01000000 58737463 6f000000 00000000 1200000c 2000000d 2000000d e000000e a000000f 60000010 20000010 e0000011 a0000012 60000013 20000013 e0000014 a0000015 60000016 20000016 e0000017 a0000018 60000019 20000009 8b667265 65000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000da8 6d646174 3cde401f 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59368657 2da1eb7f 0b148c57 91b861b0 3c283e23 55cf0c07 de119407 15fe8c4b 6ccc377c 6263b194 087acb0a 6a900d90 3c425582 37f3ea24 3e00ef2b cfa007ed f7d3ad10 1308b415 6314a85a 7faf1320 3c344a1f 5af4240b 1c267db8 a9a2dd1d 73a98054 0de8282b e4893c1f f69ca7f0 3c6e4d7b 3fbe440d 3e03862b 9d0ba23f c694131c 1fd648d2 42fab456 d899d920 3c4e4a1d 5550a21c 3e005e56 02cdfe15 aa23bbea cbaafc50 3de68059 5b1a8fb0 3c1a4199 27dc948d 3e000fec 19e093bc 7cde16d5 3c5c5488 d4c45008 238615e0 3c525e25 574d7640 f688d915 afd76f07 bbdfd606 ce0f4ee4 1705b771 3add88c0 3c2c4b90 1dece281 7e013b94 43e5e591 0eeebc1a 94f3f1f5 55ba3ff8 30aa4a40 3c9865a1 192e2e12 7a4576b4 7666b529 0d5fa327 01781568 4ad86552 7069c580 3c184c17 4e67100a 1a564bfa b62528ed db972ea2 8f04a354 9b8d4edb 27afc100 3c50557b 21921e10 fa46e136 5e212dbd 9655d2c5 0f1ad00e 30a49f43 e2346490 3c084415 38d58203 da472657 34b8c7ae b714d9d7 fa014a73 8e97084a 3a67e120 3c485e2d 1f786607 9c276bd8 99e85499 64dd3d73 59165200 50cea61a 20af5c70 3c28501c 85421409 5c367a44 55d01bf5 288180f6 1f12ebe5 5ffab69a 6fad0f40 3c5fbb0d a0dd4ca2 be3f4a66 bf492199 97211db1 2fb3b790 ab77863f 24fa69d0 3c444067 90d91e00 479ffcc4 d6d1e517 215d9f78 dbae7f90 013a8ab8 eb7eb540 3c305590 2c78ae05 5e0323c5 7050e9b3 8c1d8797 cdc95783 a64ede58 a84dcf10 3cde4e5d 4b645222 1699c67c f5017456 0dc9aa05 273ae27c 0ce43b56 f9307870 3c305e1a 2fb36610 fa571126 36200758 4d28dba5 8a3cb7f0 4d6f3683 7a6e3a30 3cde442c 4ff8a614 969c43fb d441566f 567c10db e272bdc7 94459fa2 eb7b9ad0 3c38521d 43a61212 de0027b8 9c63d946 6f948d5e cc186d00 8829bc8e 13db9dd0 3ce05574 1f6d1e18 7e11b338 09370fea 1f845fdb ec5c6508 c0f4a973 206bb470 3c464183 4fd1a412 de10c074 53401bdc ef93b5b5 65f770f2 26f0283d 6d90bbc0 3c324c1c 14d26e12 de02d3c8 f226daa1 29acb7a3 f7f1236e 4150b067 51602890 3c3a5428 53e7f212 7e01c0d2 c38e9751 4fabb69e e2d41cdc 592baf79 24d57400 3c423f95 28d80e0c be013a78 86d3a498 f9cfa07a 9130877d 8351d475 8de6a580 3c48638b 5fa8a401 be112ff3 f35c110d 84a869a8 9ee1d2f0 cd4a1c05 2444da60 3c442220 22777c12 da4608a6 9e943054 a2068d61 a4e33c89 de764da1 175272b0 3c3e5c20 13f4ea0a de00cb57 891d5915 d09d08df 2d3bf3a1 c0deb211 7c9f5da0 3c424020 27f30414 16895013 de7df909 1da1cead 0a3e18ee be5758bc 6d1dce60 3c347b8a 10b80001 3e19ab6a 30573c6d b3020cf9 cd7604ec b881a82c 39bbaa80 3c1a4e64 25c7b008 5c2f1042 7110d08f f4726474 fddc5430 d1cb9059 47ff0f40 3c544386 52d7da1c 1e019967 3b3740eb 3363cd0d eb8bc881 112b80a5 064bf740 3c1a5388 27f99e18 3e104b9b 52111c61 d3cb75b3 0867d9f7 56d513af a99f8a60 3c463f89 51211c21 be132462 85e62731 f566b723 de0f0a77 7380b271 43c97c20 3c425d88 76acf403 8f146e77 bcd3a418 2177013a 479b0f2d 5f34e00c c90a3490 3c344b8b 4d54e405 de00e2f4 9562775c 2df5bafc 6d603ff9 6debf3ca 07f51610 3cdc6788 1994d214 ba479992 0428d751 dc2dfc22 953aab3d e5e98aa0 7dcccc20 3c343d88 17587ca1 3e039946 e84193ce 9123a9a2 75acad72 8718403d ac14f830>

我不相信数据存在问题。请多点亮一点。谢谢。