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DJI-Mobile-SDK-Tutorials / Android-VideoStreamDecodingSample

This sample project demonstrates how to use FFmpeg for video frame parsing and to use MediaCodec for hardware decoding on DJI Products.
MIT License
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Demo custom decoder #41

Open YangShengLiQQ opened 5 years ago

YangShengLiQQ commented 5 years ago

I ran the sample code and clicked demo custom decoder button. I found if I connected the remote control through the wifi, It worked well. However, If I connected the remote control through the USB line, and clicked demo custom decoder button, the screen was black. It didn't receive the video data because I didn't find Log.d(TAG, "camera recv video data size: " + size) in logcat. If I tried other buttons like Demo SurfaceView and Demo TextureView and connected the remote control through the USB line, They worked well. I also tried other cellphone to test it, and the result was the same.

Michael-DJI commented 5 years ago

which drone?

YangShengLiQQ commented 5 years ago

spark

YangShengLiQQ commented 5 years ago

I ran the lastest version sample code, and it worked well. My project use older SDK(4.5.1). If I use the latest SDK, the problem will be solved? Or just change some code?

Michael-DJI commented 5 years ago

in 4.7, decoding sample use data get from provideTranscodedVideoFeed() to feed into the custom decoder, could u explain what's your feature?

oscarmore2 commented 5 years ago

But TranscodedVideoFeed() was never called when in USB connection with Mavic Pro and Mavic 2. My sdk version is 4.8.1.

neilyoung commented 5 years ago

Here initCodec() immediately returns, since width and height are 0.

If I fake a w/h it is stuck a bit later

W/ACodec: [OMX.qcom.video.decoder.avc] does not support color format 2130708361

What a mess...