[Tracker] Add support for OMA DRM Content format

2011-02-18 Thread Lin, Mengdong
I want to add support for OMA DRM Content Format (DCF), an encrypted file format. Here is my solution: (1) I've registered *.dcf files in shared-mime-info, MIME type is "application/vnd.oma.drm.content". (2) We developed a DRM-aware GStreamer file source plug-in that can decrypt the protected

[Tracker] Add support for OMA DRM Content format

2011-02-18 Thread Lin, Mengdong
I want to add support for OMA DRM Content Format (DCF), an encrypted file format. Here is my solution: (1) I've registered *.dcf files in shared-mime-info, MIME type is "application/vnd.oma.drm.content". (2) We developed a DRM-aware GStreamer file source plug-in that can decrypt the protecte

Re: [Tracker] Add support for OMA DRM Content format

2011-02-18 Thread Lin, Mengdong
-list@gnome.org Subject: [Tracker] Add support for OMA DRM Content format I want to add support for OMA DRM Content Format (DCF), an encrypted file format. Here is my solution: (1) I've registered *.dcf files in shared-mime-info, MIME type is "application/vnd.oma.drm.content". (2)

Re: [Tracker] Add support for OMA DRM Content format

2011-02-18 Thread Aleksander Morgado
Hi Amanda, First, why do you write your emails twice? :-/ > I want to add support for OMA DRM Content Format (DCF), an encrypted > file format. Here is my solution: > > (1) I've registered *.dcf files in shared-mime-info, MIME type is > "application/vnd.oma.drm.content". > > > > (2) We dev

Re: [Tracker] Add support for OMA DRM Content format

2011-02-18 Thread Martyn Russell
On 18/02/11 09:00, Aleksander Morgado wrote: Hi Amanda, First, why do you write your emails twice? :-/ I want to add support for OMA DRM Content Format (DCF), an encrypted file format. Here is my solution: (1) I've registered *.dcf files in shared-mime-info, MIME type is "application/vnd.oma

Re: [Tracker] Add support for OMA DRM Content format

2011-02-18 Thread Philip Van Hoof
On Fri, 2011-02-18 at 16:57 +0800, Lin, Mengdong wrote: > I want to add support for OMA DRM Content Format (DCF), an encrypted file > format. Here is my solution: > (1) I've registered *.dcf files in shared-mime-info, MIME type is > "application/vnd.oma.drm.content". > > (2) We developed a DRM

Re: [Tracker] Add support for OMA DRM Content format

2011-02-19 Thread Lin, Mengdong
Thank you all for the advice! It's straight forward to adding "application/vnd.oma.drm.content" to the list of mimetypes the gstreamer extractor can handle. To be honest, writing a new DCF extractor cannot make metadata extraction faster because it still depends on GStreamer and its extension (t

Re: [Tracker] Add support for OMA DRM Content format

2011-02-19 Thread Lin, Mengdong
Supporting DRM formats usually involves proprietary multimedia framework extension (such as the DRM-aware GStreamer plug-in) and low-level proprietary HW/SW support. It seems better to enhance GStreamer extractor than writing a new DCF extractor, because: - If it depends on GStreamer, it cannot

Re: [Tracker] Add support for OMA DRM Content format

2011-02-22 Thread Lin, Mengdong
Here is my change on Tracker GStreamer extractor and it works. Is this method doable? And Can I submit a patch for it? For OMA DRM content format (DCF), it will try GStreamer at first. If GStreamer DRM-aware extensions are installed, then decodebin2 can recognize the original media type and extr

Re: [Tracker] Add support for OMA DRM Content format

2011-02-22 Thread Lin, Mengdong
There may be a better way: How about introducing a "priority" or "rank" property for the extractors? Once a extractor is loaded, it's order in the specific/general extractor list is decided by its priority. If more than one extractors match a mime type, the higher-priority one will be tired befo

Re: [Tracker] Add support for OMA DRM Content format

2011-03-11 Thread Martyn Russell
On 23/02/11 06:09, Lin, Mengdong wrote: Here is my change on Tracker GStreamer extractor and it works. Is this method doable? And Can I submit a patch for it? For OMA DRM content format (DCF), it will try GStreamer at first. If GStreamer DRM-aware extensions are installed, then decodebin2 can rec

Re: [Tracker] Add support for OMA DRM Content format

2011-03-13 Thread Lin, Mengdong
Thank you, Martyn! I will. But we have to go through the open source approval before I could summit the patch for review. It may take 1 ~ 2 weeks. Best Regards Amanda > Can you create a bug report and submit a patch for review based on this > thread? I don't have an objections to what I have see