Silverlight MediaElement doesnt play again

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I have a media element which I give a source I get from Microsofts translation service. This is a slight problem because it gives me a wav file. I used the WAVmss library to help me and it works great, but for one thing. It plays the first time I load the file into the element, but when I try and play it a second time it doesn't play? The playback code could not be simpler:

C#

private void Play()
        {
            mediaElement.Stop();
            mediaElement.Position = TimeSpan.Zero;
            mediaElement.Play();
        }

I have debugged. The Position property does get set to zero, ,and when I break in after clicking it again its position has moved to the end.

An ideas?

Posted 31-Jul-11 23:03pm

DominicZA

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Matt Cavanagh · Answer 1 · 2011-08-01T01:16:00

Try:

C#

if (mediaElement.CurrentState == MediaElementState.Playing)
                {
                    mediaElement.Pause();
                }
                else
                {
                    if (mediaElement.CurrentState == MediaElementState.Paused)
                    {
                        if (mediaElement.Position == mediaElement.NaturalDuration.TimeSpan)
                        {
                            mediaElement.Position = new TimeSpan(0);
                        }
                        mediaElement.Play();
                    }
                 }

Dor Cohen · Answer 2 · 2013-01-29T02:43:00

I had the same issue and thanks to Gilles Khouzam quick response the problem has been solved.

"Ok, I found the issue. The implementation of SeekAsync, the position in the stream was changed but the remaining count in the chunk was not. In WaveMediaStreamSource.cs, look for the SeekAsync method and change the code to this (add the MoveToChunkOffest line):"

C#

this.currentPosition = this.wavParser.WaveFormatEx.BufferSizeFromAudioDuration( seekToTime ) + this.startPosition;
this.wavParser.MoveToChunkOffset( ( uint ) this.wavParser.WaveFormatEx.BufferSizeFromAudioDuration( seekToTime ) );
this.currentTimeStamp = seekToTime;
ReportSeekCompleted( seekToTime );

Silverlight MediaElement doesnt play again

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