AVPlayer的持续时间是Twilio的NAN [英] AVPlayer Duration is NAN with Twilio

问题描述

AVPlayer.currentItem的duration属性将始终随 Twilio 音频URL返回NAN.但是，音频可以正常播放.

The duration property of AVPlayer.currentItem is returning NAN always with the Twilio audio urls. However, the audio is playing fine.

我能够获得Twilio以外的所有其他音频URL的duration属性.

I'm able to get the duration property of all other audio urls than Twilio.

示例网址以测试此问题:

Sample url to test this issue:

http://api.twilio.com/2010-04-01/Accounts/AC1db6911efe574fc890ee332f140f7e8c/Recordings/RE06adfbfd2ad2cfd5d95585ff91cb3b88.mp3

以下是我尝试过的不同方法:

Here are the different ways that I have tried out:

if (avPlayer.currentItem.status.rawValue == AVPlayerStatus.ReadyToPlay.rawValue) {

     var asset = AVURLAsset(URL: sourceURL, options: nil)
     var duration: Float64 = CMTimeGetSeconds(asset.duration)
     println(duration)
}


if (avPlayer.currentItem.status.rawValue == AVPlayerStatus.ReadyToPlay.rawValue) {
     var duration: Float64 = CMTimeGetSeconds(self.avPlayer.currentItem.duration)
     println(duration)
}


var thePlayerItem = self.avPlayer.currentItem
if thePlayerItem.status.rawValue == AVPlayerStatus.ReadyToPlay.rawValue{

     println(CMTimeGetSeconds(thePlayerItem.duration))
     println(CMTimeGetSeconds(thePlayerItem.asset.duration))
}

对此有任何帮助.

我已通过浏览器请求GET，它返回了所有详细信息，包括音频持续时间<Duration>37</Duration>

I have requested GET through the browser and it returned all the details including the audio duration <Duration>37</Duration>

GET /2010-04-01/Accounts/ACda6f1.../Recordings/RE557ce644e5ab84fa21cc21112e22c485.xml

响应:

HEADERS

Access-Control-Allow-Credentials: true
Access-Control-Allow-Headers: Accept, Authorization, Content-Type, If-Match, If-Modified-Since, If-None-Match, If-Unmodified-Since
Access-Control-Allow-Methods: GET, POST, DELETE, OPTIONS
Access-Control-Allow-Origin: *
Access-Control-Expose-Headers: ETag
Connection: keep-alive
Content-Length: 550
Content-Type: application/xml
Date: Tue, 08 Sep 2015 06:50:43 GMT
Etag: b1512f..
Last-Modified: Fri, 04 Sep 2015 04:19:20 +0000
Strict-Transport-Security: max-age=15768000
X-Powered-By: AT-5000
X-Shenanigans: none
BODY
view raw
<?xml version='1.0' encoding='UTF-8'?>
<TwilioResponse>
  <Recording>
    <Sid>RE…</Sid>
    <AccountSid>ACda6f1... </AccountSid>
    <CallSid>CA3..</CallSid>
    <Duration>37</Duration>
    <DateCreated>Fri, 04 Sep 2015 04:19:20 +0000</DateCreated>
    <ApiVersion>2010-04-01</ApiVersion>
    <DateUpdated>Fri, 04 Sep 2015 04:19:20 +0000</DateUpdated>
    <Price/>
    <Uri>/2010-04-01/Accounts/ACda6f1.../Recordings/RE557ce644e5ab84fa21cc21112e22c485.xml</Uri>
  </Recording>
</TwilioResponse>

推荐答案

嘿，我只是在做，实际上，当我使用.duration并使用建议"时，从twilio录制的带有mp3扩展名的录音并没有为我带来麻烦. @inga loadedTimeRanges[0].rangeValue.duration它返回错误的时间.但是我改为twilio path without .mp3 extensio n并开始工作

Hey I am just doing it and in fact recording from twilio with mp3 extension didn't wokred for me when I have used .duration, and when using suggested @inga loadedTimeRanges[0].rangeValue.duration it returns wrong time. But I changed to twilio path without .mp3 extension and it start working

if let playerItem = player.currentItem, playerItem.status == AVPlayerItemStatus.readyToPlay {
    let durationTime = playerItem.duration 
   //playerItem.loadedTimeRanges[0].timeRangeValue.duration
}

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