Run App in Background - Githubissues

MattWanjia commented 4 months ago

Am i able to run this app in the background? Extract the bytes data without having a CameraSurfaceView?

alias-r-cummins commented 4 months ago

Yeah this is technically possible but a bit of a pain to be honest. You would need to obtain an egl context and store it somehow.

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Am i able to run this app in the background? Extract the bytes data without having a CameraSurfaceView?

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MattWanjia commented 4 months ago

I have managed to get almost everything working atleast in connecting to the camera and opening it without the dependence on a cameraview surface. The issue now comes in when trying to encode the video using a pusher. I get the folloing error.

E FATAL EXCEPTION: Thread-4 Process: com.jiangdg.usbcamera, PID: 9641 java.lang.IllegalArgumentException: at android.media.MediaCodec.native_configure(Native Method) at android.media.MediaCodec.configure(MediaCodec.java:2332) at android.media.MediaCodec.configure(MediaCodec.java:2248) at com.serenegiant.usb.encoder.biz.H264EncodeConsumer.startMediaCodec(H264EncodeConsumer.java:258) at com.serenegiant.usb.encoder.biz.H264EncodeConsumer.run(H264EncodeConsumer.java:137)

this comes from thepiece of code below

`mCameraHelper.startPusher(new AbstractUVCCameraHandler.OnEncodeResultListener() { @Override public void onEncodeResult(byte[] data, int offset, int length, long timestamp, int type) {

                    //Toast.makeText(getApplicationContext(), String.valueOf(length), Toast.LENGTH_SHORT).show();
                    Log.d("CAMERAAAAA", String.valueOf(data.length));

                    // type = 1,h264 video stream
                    if (type == 1) {

                        //byte[] encodedData = encodeToH264(data, offset, length, timestamp);

                        rtmpMuxer.writeVideo(data, 0, length, timestamp);

                        //if(encodedData != null){
                        //    rtmpMuxer.writeVideo(encodedData, 0, encodedData.length, timestamp);

                        //    Log.d("CAMERAAAAA", String.valueOf(rtmpMuxer.isConnected()));
                        //}
                    }
                    // type = 0,aac audio stream
                    if(type == 0) {
                        rtmpMuxer.writeAudio(data, offset, length, timestamp);
                    }
                }

                @Override
                public void onRecordResult(String videoPath) {

                }
            });`

Any thoughts?

quantum6 commented 1 month ago

I am not sure what is your mean. When app push to background: 1, read data and send it to somewhere? I think it's very difficult, Android doesn't allow. 2, What to startup and move to front?

quantum6 / Android-USB-OTG-Camera

Run App in Background #36