591200 - It should be possible to hook additional media codecs into nsHTMLMediaElement

Status: RESOLVED INACTIVE

(Core :: Audio/Video: Playback, defect)

Comment 1

[Jan Arne Petersen]

It should be possible to hook additional media codecs into nsHTMLMediaElement, for example via extensions.

The media codecs should be described by an implementation of an interface like

class nsIMediaCodec {
  virtual PRBool IsType(const nsACString& aType) const = 0;
  virtual nsHTMLMediaElement::CanPlayStatus 
          CanHandleMediaType(const char* aMIMEType,
                             char const *const ** aCodecList) const = 0;
  virtual already_AddRefed<nsMediaDecoder>
          CreateDecoder() = 0;
};

and it should be possible to register such media codes to nsHTMLMediaElement.

One could also use that for the builtin decoders and clean up the code a bit.

Comment 2

[Robert O'Callahan (:roc) (email my personal email if necessary)]

The interface would have to be *a lot* more complicated than that. Also, we keep changing the interface as we implement more of the HTML5 spec. There is no way we are going to provide a stable interface.

You can implement nsMediaDecoder and patch that directly into our code, though.

Comment 3

[Robert O'Callahan (:roc) (email my personal email if necessary)]

(The GStreamer integration work is a much more realistic way to provide codec extensibility.)

Comment 4

[Nils Ohlmeier [:drno]]

Mass closing do to inactivity.
Feel free to re-open if still needed.