In general, MediaCodec is the one that would be recommended. The OpenMAX AL API was added as a stopgap measure in Android Stagefright is a successor to OpenCore on Android platform compliant to OpenMAX IL, shipped in GB and later android distributions. gst-openmax for android. Contribute to prajnashi/gst-openmax development by creating an account on GitHub.
|Published (Last):||4 May 2017|
|PDF File Size:||18.49 Mb|
|ePub File Size:||14.94 Mb|
|Price:||Free* [*Free Regsitration Required]|
It allows companies that develop wndroid to easily migrate their applications to different platforms customers that openmqx the OpenMAX AL application programming interface API. Archived from the original PDF on So if you want to do streaming playback of a format other than MPEG TS, you need to handle extracting of the packets yourself or use some other library, such as libavformat, for that task.
OpenMAX provides three layers of interfaces: Webarchive template wayback links CS1 maint: Sign up or log in Sign up using Google. I have written basic player using ffmpeg but I have not been able to use hardware decoders, so not following it. I don’t think it is usable for streaming e.
To add your own codecs: Stagefright comes with built-in software codecs for common media formats, but you can also add your own custom hardware codecs as OpenMAX components.
It does not support other container formats.
Forums – MediaCodec vs OpenMAX as implementation interface
I will double check. The interface abstracts the hardware and software architecture in the system.
It does not give you direct access to the decoded data either, but it is played back directly. For extracting individual packets of data, there’s the MediaExtractor class, which will be useful with some common file formats for static files.
To do this, you must create the OMX components and an OMX plugin that hooks together your custom codecs with the Stagefright framework. One more question – Does MediaCodec guarantee that it will use hardware decoders and if fails then fallbacks to sw mode?
Is this the best way to use hardware decoders on mobile Snapdragon on Android? Qualcomm makes no representations, warranties, or other commitments whatsoever about any non-Qualcomm sites or third-party resources that may be referenced, accessible from, or linked to this site.
OpenMAX AL for Android
Requires you to handle sync manually Quite low level, requires you to do a lot of work For extracting individual packets of data, there’s the MediaExtractor class, which will be useful with some common file formats for static files. They operate on slightly different levels of openmxx, and for most cases, MediaCodec is less work. Views Read Edit View history.
In most cases it will provide best decoder available on the platform.
Ketan 6 Stagefright also supports integration with custom hardware codecs provided by you. If you use MediaCodec. Unfortunately, Google isn’t providing a complete implementation; so in this case it really falls down. Media architecture Application Framework At the application framework level is application code that utilizes android. This plugin links Stagefright with your custom codec components, which must be implemented according to the OpenMAX IL component standard.
Nevertheless, this does not preclude its applicability to other sophisticated media playback and recording devices. Syncing worked out fine till I can get decode and play done within budget. OpenMAX is used mostly by hardware vendors to provide decoders but it is almost useless at higher level. This page was last edited on 5 Augustat It appears that MediaCodec will be way to go – thanks again. Native Multimedia Framework At the native level, Android provides a multimedia framework that utilizes the Stagefright engine for audio and video recording and playback.
Hi Winston, Thanks for the reply. Stagefright updates can occur through the Android monthly security update process and as part of an Android OS release. Use the right library for your needs.
I am open to any other framework free or commercial that would accomplish above. Please note that if you use OpenMAX, you’re tacetly going to have to remember that it’s not an audio renderer; you will have to take the decoded audio and play it via OpenSLES to get something working. Is this assumption correct? This is the last place to get any information.
It is an application-level, C-languagemultimedia API designed for resource-constrained devices.