getDuration() returns -1, then 0 on some remote MP3 files about cordova-plugin-media HOT 15 OPEN

Wish I could help. I've moved on to Xamarin.

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The -1 problem is solved in this pull request: #197 by @BuddyLReno
Can you maybe try the version from this branch and see if this maybe also fixes the 0 problem you are having?

My guess would be that for some files the duration just can't be detected. Can you share the URL of such a MP3 file?

from cordova-plugin-media.

This one, does not play and returns 0. But plays fine and give the correct duration if I download it first.

This one plays fine everytime and returns the correct duration. (after a returning couple -1s)

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Can you help out building a super simple reproduction app with cordova create? Just two play buttons, the functionality to show the duration somehow should be enough. Otherwise anyone looking into this has to do that first.

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@jb280 also try renaming and reuploading the file. Possible something got corrupted when the file was uploaded? Just a guess. Hard to say what the issue is except something with the file itself since they're being served from the same location.

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I downloaded both files and looked at them (and checked with some "check if mp3 is broken" tools I could quickly google), they look just fine tbh.

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I have a sample using ionic, will that be helpful to you? It seems to be related to either files ize ( perhaps image size embedded in an MP3 tags?) or network latency. The file I'm having trouble with will play more reliably over Wifi, than cellular. Cellular fails 3 times out of 5 times for me, and I get a 0 duration and no audio playing. But other times it does play. The "play working" sample below seems to play 100% of the time.

home.ts

import` { Component } from '@angular/core';

import {Media, MediaObject} from "@ionic-native/media";

@component({
selector: 'page-home',
templateUrl: 'home.html'
})

export class HomePage {

f1 : MediaObject;
f2 : MediaObject;
d1Duration: number = -5;
d2Duration: number = -5;
d1Cnt : number;
d2Cnt: number;
durationCnt1 : number = 0;
durationCnt2 : number = 0;

constructor( private audioFile: Media) {}

PlayNotworking () {
    this.d1Cnt   = 0;
this.f1 = this.audioFile.create("https://s3-us-west-2.amazonaws.com/series-stream/Warring+Spiritually/CD+4+-++Warring+Spiritually.mp3")
this.f1.play();
this.getDuration1();

}

Playworking () {
    this.d2Cnt = 0;
    this.f2 = this.audioFile.create("https://s3-us-west-2.amazonaws.com/series-stream/Fruitful+Repentance/CD+1+-++Fruitful+Repentance.mp3")
    this.f2.play();
    this.getDuration2();

}
StopNotworking () {
    this.f1.stop();
    this.f1.release();
    this.d1Cnt = 0;
    this.d1Duration = -5;
}

Stopworking () {
    this.f2.stop();
    this.f2.release();
    this.d2Cnt = 0;
    this.d2Duration = -5;
}


getDuration1()
{
    setTimeout(() => {
    this.d1Cnt += 1;
        if (    this.d1Cnt > 8 ) {
            return;
        }

        this.d1Duration = this.f1.getDuration();
        console.log("checkDuration  duration = ", this.d1Duration, "d1Cnt = ", this.d1Cnt);
        if (this.d1Duration > 0 )
            return;
        this.getDuration1();

    }, 2000);

}

getDuration2()
{
    setTimeout(() => {
        this.d2Cnt =  this.d2Cnt + 1;
        if ( this.d2Cnt > 8 ) {
            return;
        }
        this.d2Duration = this.f2.getDuration();
        console.log("checkDuration  duration = ", this.d2Duration, "d2Cnt = ", this.d2Cnt);
        if (this.d2Duration > 0 )
            return;
        this.getDuration2();
    }, 2000);

}

}

home.html

<button ion-button (click)="Playworking()"> Play Working
<button ion-button (click)="Stopworking()"> Stop/Reset

Duration: {{d2Duration}}    Retry:  {{d2Cnt}}

<button ion-button (click)="PlayNotworking()"> Play Not Working
<button ion-button (click)="StopNotworking()"> Stop/Reset

Duration: {{d1Duration}}    Retry:  {{d1Cnt}}

from cordova-plugin-media.

Ionic is fine as well. Please upload the project to Github, so we just have to check it out. Creating a project manually, adding all those files, debugging any build failures etc is a reason not to look into this for any committer.

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https://github.com/jb280/mediaDemo

from cordova-plugin-media.

Currently on a Windows machine: Works on Android. Will try iOS later.

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I ran 3 sets of 5 tests on a cellular connection. The most I got was 3 working in one set, the worst was 5 not working. I did get a better result over Wifi. I am still using Ionic 3.18.0 CLI ( because of some things in the larger project), and cordova-plugin-media 5.0.2. Might that be an issue?

My workaround for this project was to download the file with cordova-plugin-file-transfer, and then play it, that works 100% of the time with the same audio files.

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Ionic CLI has no influence at all at the resulting app. It is just a local tool.
And cordova-plugin-media 5.0.2 is the current version.

But the information that the bug depends on the connection type is interesting. Will take this into account when further testing this.

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Did you have any luck reproducing this on iOS? I still get 2 failures ( getDuration() returns 0) 2 out of 5 time on cellular ( AT&T 3-4bars). The audio never plays. My working of download the whole filed locally first does work, but I don't like the delay of having to download the whole file before starting the audio.

from cordova-plugin-media.

I now get this in Xcode, when it fails in my real app.
35: CheckRPCError: AudioSessionSetActive_Priv returned server mach error 0x10000003!
Unable to play audio: (null)

getDuration() returns NaN.

It is not on lock-screen, there is no other audio playing. If I turn on WiFi while it is retying the same file it will load and play.
My guess is for that some larger files on a slower link, it might sometimes read zero bytes, and assume it was the EOF, or network error?

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Any news on this issue? I download the demo provided by @BuddyLReno on #197, changed the mediaUrl to this and the media duration using the update callback is -1 too.

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