You haven't answered the what "played completely" means.
>From OpenCORE perspective, consuming a license once per iteration in a
loop is not supported. I can also say that we don't have any immediate
plans to support the usecase.
Since you are in android-porting, you are free to change OpenCORE code
for your use. So, what you could do is in HandleSinkNodeInfoEvent()
[inside pv_player_engine.cpp, search for
"PVP_ENGINE_COMMAND_PAUSE_DUE_TO_ENDOFCLIP". This is a command that we
issue at the end of playback of a clip. Here, instead of pausing, you
could issue and internal RESET. This will make sure that at the end of
a completed playback session (i.e., all audio/video samples have been
rendered), you would clean up the session. And, in the
PlayerDriver::Run(), you would need to restart the playback session in
the section of code if (mDoLoop) { }.
Regarding your question: "But i m worried that if somebody will write
a test app where he won't call reset...in that case he can play DRM
FILE forever what do u say?? how to handle that case???" .... as I
said, there is no good way around it. As an example, one could do a
reposition in the last second of the clip, and playback from the
beginning. In your usecase, wouldn't that be allowed?
-Ravi
On Oct 20, 4:39 am, Atish <[email protected]> wrote:
> Yeah that is correct...in that case only option i m left with is to
> Change the Music app code.
>
> So after completion it will do a reset.That will do the things for me.
>
> But i m worried that if somebody will write a test app where he won't
> call reset...in that case he can play DRM FILE forever what do u say??
> how to handle that case???
>
> Thanks and Regards,
> Atish
>
> On Oct 17, 8:10 pm, RaviY <[email protected]> wrote:
>
> > That would mean that you want to consume a license for every play in a
> > loop. Right?
>
> > As a consumer, that is a very bad scenario. Also, it introduces
> > trickcy situations/questions like, what does "played completely" mean?
> > Does it mean that the last sample/frame has been rendered? Or, does
> > that mean that the last sample has retrieved from the file (assuming
> > file playback as an example)?
>
> > As I mentioned earlier, probably in some other thread, "UsageComplete"
> > should not have anything to do with rights consumption. Decrementing
> > the DRM counter should be done in "AuthorizeUsage".
>
> > Checking the start or end of file (assuming you mean the duration) is
> > not a fool proof way. I could be wicked and reposition to the 1st
> > second, instead of starting from 0. What would you do then?
>
> > -Ravi
>
> > On Oct 17, 6:23 am,Atish<[email protected]> wrote:
>
> > > i want to consume rights each time is played(completely...)
>
> > > So i thought of moving the UsuageComplete code to DoPause or DoStart .
>
> > > and i'll check file start or file end in method so that it'll consume
> > > the rights only once during one time play...
>
> > > is there any better method to do it??
>
> > > On Oct 17, 10:16 am, RaviY <[email protected]> wrote:
>
> > > > Are you saying that you want to consume a right every time the clip is
> > > > either paused, or stopped, or played in a loop?
>
> > > > On Oct 15, 8:47 am,Atish<[email protected]> wrote:
>
> > > > > Whatever u said is absolutely correct.But imaging actual use case
> > > > > scenario user doesnot want to remain in the player screen to play the
> > > > > content infinitely(unless he is fanatic about the song!!!)
>
> > > > > But what i m talking about is u can come out of the player app and
> > > > > anytime u can go n start playing.
> > > > > As nobody called reset or stop all nodes will retain their STATE
> > > > > (PAUSED).Next time it will start from PAUSED STATE ONLY. :(
>
> > > > > If we can consume rights during START(STATE) or PAUSED/STOPPED
> > > > > (whichever is called by app) then at least we will save some royalty
> > > > > to the operator...
>
> > > > > what do u say??isn't there any way to move the usage complete code to
> > > > > any other state??
>
> > > > > On Oct 15, 2:22 pm, NoraBora <[email protected]> wrote:
>
> > > > > > Yes. the app can play a drm content with one consumption(because
> > > > > > AuthorizeUsage called during prepare) until reset(). but isn't this
> > > > > > a normal
> > > > > > scenario?
> > > > > > Imagine that near the playback end, user can seek to the first
> > > > > > and can
> > > > > > watch forever by one consumption. What's the difference?
>
> > > > > > If you really want the drm content to be played only once with
> > > > > > one
> > > > > > consumption, maybe you could try using intents like
> > > > > > BITMASK_PVMF_CPM_DRM_INTENT_RESUME,
> > > > > > BITMASK_PVMF_CPM_DRM_INTENT_SEEK_BACK in
> > > > > > parser nodes. (I haven't used them yet..)
>
> > > > > > 2009/10/15Atish<[email protected]>
>
> > > > > > > yeah we can do that but i feel that won't be a gud solution as
> > > > > > > anybody
> > > > > > > can write an application which won't call reset.
> > > > > > > So that app can play the DRM content for ever by continous
> > > > > > > playing the
> > > > > > > file.
> > > > > > > So some changes need to be done in ParserNode level so that each
> > > > > > > time
> > > > > > > node goes from pause to start it should at least call
> > > > > > > AuthorizeUsuage
> > > > > > > and UsuageComplete..
>
> > > > > > > what do u say??
>
> > > > > > > On Oct 15, 12:28 pm, NoraBora <[email protected]> wrote:
> > > > > > > > I tested what you said.
> > > > > > > > MediaPlayer.start() ... wait...play
> > > > > > > > complete..MediaPlayer.start()
> > > > > > > > In the second start(), none of the cpm function called.
>
> > > > > > > > Under this opencore structure,
> > > > > > > > all I can think of is to reset MediaPlayer in
> > > > > > > > CompletionListener.
>
> > > > > > > > I hope there is a better solution.
>
> > > > > > > > 2009/10/14Atish<[email protected]>
>
> > > > > > > > > Thanks for Replying...
>
> > > > > > > > > I have already tried that.
>
> > > > > > > > > CPM's AuthorizeUsage() will be called only once when u start
> > > > > > > > > playing a
> > > > > > > > > new media file.
>
> > > > > > > > > Once play is finished node will be in paused state.So if u
> > > > > > > > > start
> > > > > > > > > playing again node will go to Start state.
> > > > > > > > > PvPlayerEngine->Resume->ParserNode->Start.
> > > > > > > > > So AuthorizeUsage() won't be called.
>
> > > > > > > > > As all the cpm calls are enqued in Init of Parser node only
> > > > > > > > > if u
> > > > > > > > > change media file or call Reset from App then only cpm
> > > > > > > > > commands will
> > > > > > > > > be invoked.
>
> > > > > > > > > Please guide me what to do in this scenario???
>
> > > > > > > > > On Oct 14, 12:32 pm, NoraBora <[email protected]> wrote:
> > > > > > > > > > I didn't know the default music player doesn't call
> > > > > > > MediaPlayer.Reset().
>
> > > > > > > > > > How about you put such as ConsumeRight() in CPM's
> > > > > > > > > > AuthorizeUsage()
> > > > > > > not in
> > > > > > > > > > CPM's UsageComplete()?
> > > > > > > > > > In this case the consumption happens before playback.
>
> > > > > > > > > > 2009/10/14Atish<[email protected]>
>
> > > > > > > > > > > But Currently android music player doesnot call
> > > > > > > > > > > Reset.That means it
> > > > > > > > > > > can play DRM files with no constratint!!!!
>
> > > > > > > > > > > So where should i put that UsuageComplete code so that
> > > > > > > > > > > every case
> > > > > > > is
> > > > > > > > > > > considered??
>
> > > > > > > > > > > On Oct 14, 6:44 am, NoraBora <[email protected]> wrote:
> > > > > > > > > > > > DoReset() is invoked by MediaPlayer.reset();
>
> > > > > > > > > > > > 2009/10/13Atish<[email protected]>
>
> > > > > > > > > > > > > Hi All,
> > > > > > > > > > > > > I m trying to run CPM plugin thru opencore for
> > > > > > > > > > > > > playing DRM
> > > > > > > contents
> > > > > > > > > in
> > > > > > > > > > > > > Android.
>
> > > > > > > > > > > > > I was succesfule in registrering and checking the
> > > > > > > > > > > > > rights for
> > > > > > > DRM
> > > > > > > > > > > > > content thru CPM plugin.
>
> > > > > > > > > > > > > But consuming rights is not working because of below
> > > > > > > > > > > > > mentioned
> > > > > > > > > reason.
>
> > > > > > > > > > > > > Push(iCPMContainer,
> > > > > > > > > PVMFSubNodeContainerBaseMp3::ECPMUsageComplete);
> > > > > > > > > > > > > This command will enque the consume rights commands
> > > > > > > > > > > > > (ECPMUsageComplete).But this code is present in
> > > > > > > > > > > > > DoReset.
>
> > > > > > > > > > > > > So how do reset will be invoked??
> > > > > > > > > > > > > Current android music player doesnot even call stop.
>
> > > > > > > > > > > > > so ECPMUsageComplete is not getting called...
> > > > > > > > > > > > > how to solve this issue...???- Hide quoted text -
>
> > > > > > > > > > > > - Show quoted text -- Hide quoted text -
>
> > > > > > > > > > - Show quoted text -- Hide quoted text -
>
> > > > > > > > - Show quoted text -- Hide quoted text -
>
> > > > > > - Show quoted text -
>
>
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