Re: [webkit-dev] Media Server Development
You should write a new MediaPlayerPrivate backend instead of hacking the MediaPlayerPrivateGStreamer one. Philippe On Thu, 2013-01-31 at 23:04 +0530, Kiran K wrote: HI All, I am working on QtWebKit on Media Server development. Basic Idea is to run Gstreamer in seperate process which acts like a Media server. The calls from WebKit in MediaPlayerPrivateGStreamer.cpp are routed to Media Server via DBUS. Media Server implements the methods in MediaPlayerPrivateGStreamer class. I am basically doing this to have control over the resources like maximum playback instances, hw codec control etc. I am able to do achieve playback to some extent. I am facing some problems (race conditions) especially when deleting playback instance. From the logs i concluded that when duration() function is made and is waiting for response from server, ~MediaPlayerPrivateGStreamer destructor is getting called. (some times vice versa too). I am suspecting that the MediaPlayer object is being shared between two threads (or across timers). Can anybody give me some pointers about HTMLMediaElement and the timers involved? Any help is appreciated. Thanks, Arun ___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev ___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev
Re: [webkit-dev] Media Server Development
Yes Phippe, you are right. I will start doing it , once I am done with hacking of MediaPlayerPrivateGstreamer. Regards, Kiran On Fri, Feb 1, 2013 at 4:26 PM, Philippe Normand ph...@igalia.com wrote: You should write a new MediaPlayerPrivate backend instead of hacking the MediaPlayerPrivateGStreamer one. Philippe On Thu, 2013-01-31 at 23:04 +0530, Kiran K wrote: HI All, I am working on QtWebKit on Media Server development. Basic Idea is to run Gstreamer in seperate process which acts like a Media server. The calls from WebKit in MediaPlayerPrivateGStreamer.cpp are routed to Media Server via DBUS. Media Server implements the methods in MediaPlayerPrivateGStreamer class. I am basically doing this to have control over the resources like maximum playback instances, hw codec control etc. I am able to do achieve playback to some extent. I am facing some problems (race conditions) especially when deleting playback instance. From the logs i concluded that when duration() function is made and is waiting for response from server, ~MediaPlayerPrivateGStreamer destructor is getting called. (some times vice versa too). I am suspecting that the MediaPlayer object is being shared between two threads (or across timers). Can anybody give me some pointers about HTMLMediaElement and the timers involved? Any help is appreciated. Thanks, Arun ___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev ___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev
[webkit-dev] Media Server Development
HI All, I am working on QtWebKit on Media Server development. Basic Idea is to run Gstreamer in seperate process which acts like a Media server. The calls from WebKit in MediaPlayerPrivateGStreamer.cpp are routed to Media Server via DBUS. Media Server implements the methods in MediaPlayerPrivateGStreamer class. I am basically doing this to have control over the resources like maximum playback instances, hw codec control etc. I am able to do achieve playback to some extent. I am facing some problems (race conditions) especially when deleting playback instance. From the logs i concluded that when duration() function is made and is waiting for response from server, ~MediaPlayerPrivateGStreamer destructor is getting called. (some times vice versa too). I am suspecting that the MediaPlayer object is being shared between two threads (or across timers). Can anybody give me some pointers about HTMLMediaElement and the timers involved? Any help is appreciated. Thanks, Arun ___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev
Re: [webkit-dev] Media Server Development
Basically WebKit runs in the event thread(main thread) of the porting(qt,gtk). WebKit node data structures will be created and destroyed only from the mainthread. Also WebKit's timer scheduled from the main thread. Are u running multiple instance of webview from multiple threads? If so it shouldn't be done like tat. You can check the thread id of duration and destrutor's caller if u r not sure. Sent from my Xperia™ smartphone Kiran K kiran.pe...@gmail.com wrote: HI All, I am working on QtWebKit on Media Server development. Basic Idea is to run Gstreamer in seperate process which acts like a Media server. The calls from WebKit in MediaPlayerPrivateGStreamer.cpp are routed to Media Server via DBUS. Media Server implements the methods in MediaPlayerPrivateGStreamer class. I am basically doing this to have control over the resources like maximum playback instances, hw codec control etc. I am able to do achieve playback to some extent. I am facing some problems (race conditions) especially when deleting playback instance. From the logs i concluded that when duration() function is made and is waiting for response from server, ~MediaPlayerPrivateGStreamer destructor is getting called. (some times vice versa too). I am suspecting that the MediaPlayer object is being shared between two threads (or across timers). Can anybody give me some pointers about HTMLMediaElement and the timers involved? Any help is appreciated. Thanks, Arun ___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev ___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev
Re: [webkit-dev] Media Server Development
Hi Kiran, I'm afraid, this is not the right place to ask questions like that. Try asking webkit-help. On 31 January 2013 19:34, Kiran K kiran.pe...@gmail.com wrote: HI All, I am working on QtWebKit on Media Server development. Basic Idea is to run Gstreamer in seperate process which acts like a Media server. The calls from WebKit in MediaPlayerPrivateGStreamer.cpp are routed to Media Server via DBUS. Media Server implements the methods in MediaPlayerPrivateGStreamer class. I am basically doing this to have control over the resources like maximum playback instances, hw codec control etc. I am able to do achieve playback to some extent. I am facing some problems (race conditions) especially when deleting playback instance. From the logs i concluded that when duration() function is made and is waiting for response from server, ~MediaPlayerPrivateGStreamer destructor is getting called. (some times vice versa too). I am suspecting that the MediaPlayer object is being shared between two threads (or across timers). Can anybody give me some pointers about HTMLMediaElement and the timers involved? Any help is appreciated. Thanks, Arun ___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev ___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev
Re: [webkit-dev] Media Server Development
Thanks I will try webkit-help ___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev
