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.

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You must provide an OpenMAX plugin in the form of a shared library named libstagefrighthw. Hi Ketan, Here are the answers to your questions. There is not one officially supported way of playing media within the NDK, there’s actually several.

This page was last edited on 5 Augustat Support streaming audio and video playing for common containers.

Qualcomm makes no representations, ppenmax, or other commitments whatsoever about any non-Qualcomm sites or third-party resources that may be referenced, accessible from, or linked to this site. Native Multimedia Framework At the native level, Android provides a multimedia framework that utilizes the Stagefright engine for audio and video recording and playback.

Like I said, there really isn’t one standard here yet.

This is unfortunately an area that hasn’t received a lot of attention from Google. To add your own codecs: Initially announced in Andrpid For extracting individual packets of data, there’s the MediaExtractor class, which will be useful with some common file formats for static files. It does not support any container format at all on its own, but you as a caller are supposed to take care of that.

It is practically deprecated even though I’m not sure if there’s any official statement saying that. What’s sad is the openmx levels of support even amongst different NDK versions has created a situation where it’s not easy to create sample code.


It is an application-level, C-languagemultimedia API designed for resource-constrained devices.

Ok, I successfully added the .so lib in the config.make :

Perform image processing on per frame basis. It does not support other container formats.

With MediaCodec, you need to provide individual packets of andrkid to decode. Hi, I agree completely. Ketan 6 By using this site, you agree to the Terms of Use and Privacy Policy. Content and code samples on this page are subject to the licenses described in the Content License.

Stagefright also supports integration with custom hardware codecs provided by you.

Stack Overflow works best with JavaScript enabled. Archived from the original PDF on Stagefright updates can occur through the Android monthly security update process and as part of an Android OS release. Thus, keep your timing in line relatively easy and it will work.

In general, MediaCodec is the one that would be recommended. Sign up or log in Sign up using Google. The functional scope of the OpenMAX DL interface spans several domains including signal processing and image processingaudio codingimage codingand video coding. I have written basic player using ffmpeg but I have not been able to use hardware decoders, so not following it.

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. As usual nothing relevant at Qualcomm site. Is this the best way to use hardware decoders on mobile Snapdragon on Android? Archived copy as title Pages using deprecated image syntax. To do this, you must create the OMX components and an OMX plugin that hooks together your custom codecs with the Stagefright framework.


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Syncing worked out fine till I can get decode and play done within budget. Avoid writing own time sync for audio and video.

OpenMAX AL hardware video decoding for OF Android – android – openFrameworks

It provides abstractions for routines that are especially useful for processing of audio, video, and still images. In most cases it will provide best decoder available on the platform.

It does give you direct access to the decoded output data, but to present it, oppenmax need to handle sync manually. This plugin links Stagefright with your custom codec components, which must be implemented according to the OpenMAX IL component standard.

MediaCodec vs OpenMAX as implementation interface – Qualcomm Developer Network

The interface abstracts the hardware and software architecture in the system. I am open to any other framework openamx or commercial that would accomplish above.

Standards of the Khronos Group. Views Read Edit View history.

I would be doing some processing on each video frames. This is the last place to get any information. OpenMAX provides three layers of interfaces: OpenMAX is used mostly by hardware vendors androif provide decoders but it is almost useless at higher level.