Em qual Evento no MediaElement pode-se colocar uma msg para sêr exibida dentro do player tipo Aguarde Carregando...

Question

Olá pessoal gostaria de saber em qual evento no MediaElement, enquanto o video não carrega ou bufferiza poderia se colocar uma msg para sêr exibida na tela de video do MediaElement tipo "Aguarde Carregando Video..." até que o mesmo fosse carregado

Estou programando o player em Silverlight 3.0, CSharp Asp.Net e utilizando o VS2008

Fico no aguardo e desde já agradeço

---

LADEF

Answer 1

Eu monitoraria o evento CurrentStateChanged e tiraria a mensagem da tela quando a propriedade CurrentState for diferente de Playing ou Stopped. Essa propriedade pode ter os seguintes valores:

        // Summary:

        //     The System.Windows.Controls.MediaElement contains no media. The System.Windows.Controls.MediaElement

        //     displays a transparent frame.

        Closed = 0,

        //

        // Summary:

        //     The System.Windows.Controls.MediaElement is validating and attempting to

        //     open the Uniform Resource Identifier (URI) specified by its System.Windows.Controls.MediaElement.Source

        //     property. While in this state, the System.Windows.Controls.MediaElement queues

        //     any System.Windows.Controls.MediaElement.Play(), System.Windows.Controls.MediaElement.Pause(),

        //     or System.Windows.Controls.MediaElement.Stop() commands it receives and processes

        //     them if the media is successfully opened.

        Opening = 1,

        //

        // Summary:

        //     The System.Windows.Controls.MediaElement is loading the media for playback.

        //     Its System.Windows.Controls.MediaElement.Position does not advance during

        //     this state. If the System.Windows.Controls.MediaElement was already playing

        //     video, it continues to display the last displayed frame.

        Buffering = 2,

        //

        // Summary:

        //     The System.Windows.Controls.MediaElement is playing the media specified by

        //     its source property. Its System.Windows.Controls.MediaElement.Position advances

        //     forward.

        Playing = 3,

        //

        // Summary:

        //     The System.Windows.Controls.MediaElement does not advance its System.Windows.Controls.MediaElement.Position.

        //     If the System.Windows.Controls.MediaElement was playing video, it continues

        //     to display the current frame.

        Paused = 4,

        //

        // Summary:

        //     The System.Windows.Controls.MediaElement contains media but is not playing

        //     or paused. Its System.Windows.Controls.MediaElement.Position is 0 and does

        //     not advance. If the loaded media is video, the System.Windows.Controls.MediaElement

        //     displays the first frame.

        Stopped = 5,

        //

        // Summary:

        //     The System.Windows.Controls.MediaElement is in the process of ensuring that

        //     proper individualization components (only applicable when playing DRM protected

        //     content) are installed on the user's computer. See Digital Rights Management

        //     (DRM) for more information.

        Individualizing = 6,

        //

        // Summary:

        //     The System.Windows.Controls.MediaElement is acquiring a license required

        //     to play DRM protected content. Once System.Windows.Media.LicenseAcquirer.OnAcquireLicense(System.IO.Stream,System.Uri)

        //     has been called, the System.Windows.Controls.MediaElement will remain in

        //     this state until System.Windows.Media.LicenseAcquirer.SetLicenseResponse(System.IO.Stream)

        //     has been called.

        AcquiringLicense = 7,

---

Atenciosamente,
Kelps Leite de Sousa
blog: http://kelps-sousa.blogspot.com
twitter : http://twitter.com/kelps

Não se esqueça de "marcar como resposta" o ítem que lhe ajudou.

Answer 2

Bem em meu player eu fiz uma animação e coloquei esta animação  dentro  BufferingProgressChanged , ou seja, quando faz o buffer roda a animação, tipo os player que já estamos acostumado ver por ai. YOUTUBE.


de uma olhada:
http://www.dowhile.com.br
e veja se seria isso ai.. que tu quer te dou umas dicas
 
Muito útil
abraços

---

Flavia Moreira
Não se esqueça de "marcar como resposta" se o ítem te ajudou.

Answer 3

Você pode usar os eventos BufferingProgressChanged para saber o progresso do buffer do video e/ou o evento DownloadProgressChanged para saber o progresso do download do vídeo.

Answer 4

Flavia mas qual video ou artigo é eu entrei lá e não achei...fico no aguardo e desde já agradeço

---

E Kelps como seria isto que vc nos passou em codigo teria como me passar um exemplo

Eu monitoraria o evento CurrentStateChanged e tiraria a mensagem da tela quando a propriedade CurrentState for diferente de Playing ou Stopped. Essa propriedade pode ter os seguintes valores:

        // Summary:

        //     The System.Windows.Controls.MediaElement contains no media. The System.Windows.Controls.MediaElement

        //     displays a transparent frame.

        Closed = 0,

        //

        // Summary:

        //     The System.Windows.Controls.MediaElement is validating and attempting to

        //     open the Uniform Resource Identifier (URI) specified by its System.Windows.Controls.MediaElement.Source

        //     property. While in this state, the System.Windows.Controls.MediaElement queues

        //     any System.Windows.Controls.MediaElement.Play(), System.Windows.Controls.MediaElement.Pause(),

        //     or System.Windows.Controls.MediaElement.Stop() commands it receives and processes

        //     them if the media is successfully opened.

        Opening = 1,

        //

        // Summary:

        //     The System.Windows.Controls.MediaElement is loading the media for playback.

        //     Its System.Windows.Controls.MediaElement.Position does not advance during

        //     this state. If the System.Windows.Controls.MediaElement was already playing

        //     video, it continues to display the last displayed frame.

        Buffering = 2,

        //

        // Summary:

        //     The System.Windows.Controls.MediaElement is playing the media specified by

        //     its source property. Its System.Windows.Controls.MediaElement.Position advances

        //     forward.

        Playing = 3,

        //

        // Summary:

        //     The System.Windows.Controls.MediaElement does not advance its System.Windows.Controls.MediaElement.Position.

        //     If the System.Windows.Controls.MediaElement was playing video, it continues

        //     to display the current frame.

        Paused = 4,

        //

        // Summary:

        //     The System.Windows.Controls.MediaElement contains media but is not playing

        //     or paused. Its System.Windows.Controls.MediaElement.Position is 0 and does

        //     not advance. If the loaded media is video, the System.Windows.Controls.MediaElement

        //     displays the first frame.

        Stopped = 5,

        //

        // Summary:

        //     The System.Windows.Controls.MediaElement is in the process of ensuring that

        //     proper individualization components (only applicable when playing DRM protected

        //     content) are installed on the user's computer. See Digital Rights Management

        //     (DRM) for more information.

        Individualizing = 6,

        //

        // Summary:

        //     The System.Windows.Controls.MediaElement is acquiring a license required

        //     to play DRM protected content. Once System.Windows.Media.LicenseAcquirer.OnAcquireLicense(System.IO.Stream,System.Uri)

        //     has been called, the System.Windows.Controls.MediaElement will remain in

        //     this state until System.Windows.Media.LicenseAcquirer.SetLicenseResponse(System.IO.Stream)

        //     has been called.

        AcquiringLicense = 7,

Fico no aguardo e desde já agradeço

LADEF