Android :: New OMX Component Integration Into Opencore
Aug 2, 2010
I am trying to integrate VP8 video codec into PV opencore FW in Froyo & test at PV test application level. I have done the following steps, 1. Made a new folder for vp8 @ external/opencore/codecs_v2/omx/ omx_vp8. 2. Made appropriate modifications in the omx_baseclass, omx_common etc. 3. Modified the PV test app (external/opencore/codecs_v2/omx/ omx_testapp) for testing VP8. 4. included the VP8 source code to froyo. 5. Included new oscluuid for VP8 With these modifications, the build is fine. The shared libraries and binaries are creating properly. Also OMX-MasterInit is passing. But the application fails at OMX_GetHandle(). *pHandle is coming as zero. I am using the PV OMX core. I am just adding a new codec which is not supported by PV Opencore and test at PV test_app level.Can you please answer my below queries: 1. Do we need to change the pvplayer.cfg file? Bcoz i am using the PC omx_core itself. 2. Any other changes needs to be done for integrating a new component into Opencore? Please provide you valuable inputs. Let me know if need any additional informations.
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Sep 27, 2009
Anybody know if it is possible use directly OpenCore from java or native with NDK ?
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Mar 22, 2010
Here is what I got while running a test case of open core . *************** # pvplayer_ engine _test -test 1 1 SDK Labeled: PVDEV_ CORE_RELEASE_6.506.4.1 built on 20090312 Test Program for pvPlayer engine class. Input file name 'test.mp4' Test case range 1 to 1 Compressed output Video(No) Audio(No)Log level 8; Log node 0 Log Text 0 Log Mem 0 Starting Test 1: Open-Play-Stop-Reset Results for Test Case 1: Successes 1, Failures 1 Total Execution time for file test.mp4 is : 2.712000 seconds# *************** I want to ask why it shows 1 success and 1 failure . there should be only 1 pass or 1 fail only . Do each test case have multiple sub-tests within them ? which class in source code finally decide whether it is pass or faiL?
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Jul 14, 2009
I am trying to add flash (flv) support to openCORE, i found some hints in this forum but still there are many things that unclear. I would like in the beginning to play local .flv file,from SDCARD, without streaming. As i understand i need to implement Parser within fileformats, "parser node" and "recognizer" and register it with player engine, and of cause add h.263 Sorenson codec. Can someone point me to the information on the data flow from the main Player Engine to the "parser node", what API is used,? How will "parser node" send the data to the Codec Engine? Which parts will i have to add to enable streaming later? I also looked inside the documentation within opencore but did not find relevant information, perhaps i missed something and someone can point me to where should i look.
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May 24, 2010
What are the differences between StageFright and Opencore? What does this mean to app developers? Please point me to any links, tutorials online. You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscribe@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
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May 12, 2010
Im experiencing an intermittent and very frustrating issue with MediaPlayer on Android when streaming MP3 over HTTP. Ive done as much research and debugging as I possibly can to try and find a solution, but am coming up short. I cant find reference to this issue anywhere, including b.android.com. Essentially, whats happening is MediaPlayer will not come out of the preparing state. The device is receiving audio data during this time, as indicated by network sniffs and the MediaPlayer buffering callback being invoked repeatedly with increasing percentage values, but eventually the buffer appears to become full and stops receiving. Because prepare() never returns, or more accurately when prepareAsync() is used and the onPrepared callback is never invoked, and neither the onError() nor onInfo() callbacks are invoked, the application can neither call MediaPlayer.start() nor make any sort of recovery. Other notable observations: The problem is intermittent, meaning that subsequent attempts to play the exact same MP3 stream from the exact same server may exhibit this behavior or not - The problem seems to be exasperated when the device is connected via 3G versus wifi - The problem occurs on different MP3s encoded by different software - The problem occurs when streaming from different HTTP servers - The problem cannot be reproduced on any of the Android SDK emulators - The problem can be reproduced on the HTC Incredible, Verizon Motorola DROID, and HTC Touch - When MediaPlayer successfully returns from the preparing state, there is an info message (what=1, extra=44) received. This info message is not received during the problematic case. Anyone ever experienced this, or even find a solution?
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Feb 24, 2010
I guess ur doing it correctly.While running the test cases already provided by the PVcore,one can only see the logs and not the output on the screen or the speaker. This is what my experience says.Other people who worked on this can confirm.
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Nov 20, 2009
when a video is played over http (progressive download), in some cases, the application stops the current http connection and continues the download using a new http request with a range header. closing the connection is the phone choice, not server. somebody knows in which cases the phone behaves this way?
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Aug 5, 2009
I am not able to use MediaPlayer/VideoView to make rtsp to work in Android. So I have created a client to interact with RTSP server, I have succeeded in doing this.I am able to get the video/audio frame from RTSP server (MySpace) in Android. Now I want to play the frames. I have searched OpenCore APIs to play the frames, but didn't get any APIs. My investigation: There is a class PlayerDriver.c It creates two sinks one audio and other video. handleSetVideoSurface handleSetAudioSink Two objects of type PVPlayerDataSinkPVMFNode are created. I suspect this class has a way to give the stream as input, but I am not getting the definition of this class. Can you suggest me is there any class I need to look into it?
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Jul 17, 2010
I create aviparsernode folder by coping from MP4 parser node folder under /external/opencore/nodes/. But when I type "make" command under /external/opencore/build_config/opencore_dynamic/. The files under aviparsernode folder are not compilied. Does any one knows how to let OpenCore to make files under aviparsernode folder?
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Jan 29, 2009
What are the video resolutions supported by the PV codes in the opencore module? Is there a manual or guide describing this?
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Oct 8, 2009
The following what written on the Android 1.6 Platform Highlights: Android 1.6 includes the updated OpenCore 2 media engine, which has: * Support for OpenMAX encoders * Support for additional audio codecs in AuthorEngine * Improved buffering model supports shared buffers allocated in the decoder Could someone explain to me how this affects us the developers? Does this mean now we can play other media types? What in reality is new to us on Android 1.6 in regards to OpenCore?
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Feb 26, 2009
I am trying to integrate my codec on the ARM side using my own OMX core. Now I would like to test it on the Android Emulator using the Eclipse and Android SDK. I would like to know, *Tool chain used to compile openCore * How to set up Android Emulator to test my latest openCore (after integrating the Codec)?
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Aug 20, 2009
I am putting one spinner and one button using following code. Can some one tell me how can i put some space between it?
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Aug 31, 2010
Service Component is used to do some task which can be done without user interaction. But for that we have to run a thread in subclass of the Service. I think we can create a thread in Activity class itself then what is the use of Service component? Why don't we create another thread and write the non interacting code in this thread.
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Apr 30, 2010
I have almost completed my Android application so am considering ways of distributing the application. I have seen some applications on Market have free limited/locked version and separate Unlock Key/License Key which unlocks extra functionality. How is this done? Has anyone here done this? If so, how well does it work? I am thinking maybe this is better then having two versions of the same application (i.e Lite and Pro).
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Nov 18, 2010
I've created a custom component which works like a lock of a safe. customspinner - Project Hosting on Google Code on picture you see two different objects of my component.
If you need to create UI when user need to choose some element of a list, using this non standard component will be more intresting for user. And it is usefull - user can scroll and find a needed value very quickly.
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Jan 11, 2010
A component I have created works fine if I put it in the main project and reference it from any res/layout xml, but when I put it in a project on which the main project depends, I get a ClassNotFoundException in the xml.
Whilst after compiling the interface works fine, it is a pain in the * to design an interface without seeing what I am doing because of the error. Does anyone know how to solve it?
Stacktrace:
CODE:.........................
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Jul 9, 2010
I have created a simple class named Panel which extends the SurfaceView class and does some drawing in the onDraw method. When I use it from the code it works fine. For example this works as expected:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(new Panel(this)); ....
However when I try adding this component from an xml layout the program crashes:
XML file (main.xml):
<?xml version="1.0" encoding="utf-8"?> <org.anddev.Panel android:id="@+id/panel" android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android"/>
Code:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);....
Error msg: Sorry!
The application Test (process org.anddev) has stopped unexpectedly. Pleas try again.
I can not figure out why the same class works when created in one way and doesn't work when created in another.
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Jun 26, 2009
My company is in the process of evaluating if we can add support for Android to our product. I am currently working on porting our existing J2ME library to the Android framework and I have a question regarding our UI component. Right now, we have a custom menu that we allow our developers to bring up on the device. On J2ME, we simply have a single call that the developer makes to enter into the menu and then we handle the rest. On Android, it seems the best way to handle this is an Activity. But I have a few questions regarding this approach including is the really the best way to do something like this? Second, if it is, if there are multiple applications on the device that are using our library, are there going to be conflicts with them all having the same Activity embedded in them? Is it possible to create an Actvity at runtime and use it directly? Would there be any side effects of going about it this way?
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Feb 14, 2009
I am working on couple android applications which share a common component. The component has Activities, Service and own AndroidManifest.xml. After research, it seems there is no concept of run time share library among applications in Android. So I am looking for a way to linked the share component with other applications at compile time. Applications which will use the component can come from external, therefore I will only provided the compiled file. I would like to build the component into own apk or jar file, can external application include my jar/apk file into their package and be able to start my activity? Please share your experience and advice.
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May 27, 2010
I am looking for a calendar UI. Something like the Calendar UI of the Calendar Android Application but only with the view. (I know that's open source so I can extract the UI but it's a long process to remove all the staff unnecessary) Is there any open source Calendar UI project for android ?
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Mar 9, 2010
IN our current project, I need to make a UI describled as follows.
Basically it is a text input, it will display a string returned from server , such as "I like banana". The word "banana" will be in red color. When user clicks "banana", it will have a dropdown list shows "apple, orange, pear". User would be able to select one of them, like apple. So the text in that UI would be "I like apple".
How could I build such a UI component in Android.
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Nov 20, 2010
How do i do a if statement but i want like: else if not edittext.getText.toString.contains("hello") then doCode. and how do i setfocus on a component and remove the focus can not really figure that out.
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Nov 2, 2009
I want to make Ticker Component but i dont know how to do this. I have seen "Marquee" but it start scroll on focus but i dont want. I want to scroll text if it is focused or not means in both conditions.
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Sep 17, 2010
I am doing authentication with a third-party site that's supposed to redirect back to my app with auth token (OAUTH).
I have the callback working properly if I open the 3rd party site in a separate browser process via this.startActivity(new Intent(Intent.ACTION_VIEW, uri));
But, if I embed a WebView component in my layout, and open the url in that, the callback does not work. Webview says "You do not have permission to open myapp://callback?token=...." and quickly refreshes to "Web page not available...temporarily down..."
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Jul 19, 2010
I am trying to get a SharedPreferences object from the PreferenceManager but don't want to pass in the Context to the class.
Can I get a "global" context from inside my class?
CODE:...................
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Jun 17, 2009
First of all let me say that i am new to the JNI. However, i gathered some knowledge about it. As i was going through the android_media_MediaPlayer.cpp in ase mediajni to understand the way of operations of the android media framework, i saw the signatures of the JNI functions don't contain JNIEXPORT and JNICALL macros. Have these macros become redundant in JNI 1.4?
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Jan 8, 2010
I am a game developer and have developed a nice global high scores module. The source code is in two different games of mine and anytime I make changes I carefully copy and paste the java files from one project to the other. As I increase the sophistication of this module, the copying and pasting can take a day or two to make sure I get it right. Now I am finishing up my third game and want to add the high scores module, but copying and pasting this in three separate projects seems absurd and will take up much of my time! Is there any way to externalize this module?
Unfortunately, the module makes reference to R for strings, layouts and other resources. It also uses common Android functions and resources from the Android library. Almost anything would be easier than the method I am using now--so any and all suggestions are welcome!
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Oct 15, 2010
I developed my application and tested it on android emulator 1.6, 2.1 & 2.2 and on HTC Magic
its running PERFECTLY and the gui components look very neat...
However, when I tested it on Sony Ericsson Xperia X10 the gui components are looking fuzzy........
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