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Convert bitmaps to video

Home Page: https://medium.com/@Cuong.Le/open-sourcing-bitmp4-1e7517e5462f

License: Apache License 2.0

Java 85.75% Kotlin 14.25%

video-recording android

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bitmp4's Issues

java.nio.BufferOverflowException

encoderInputBuffer.put(audioArray);thorw exception

Couldn't change a frame rate

This issue relates to #7

I tried your advise and updated
https://github.com/dbof10/Bitmp4/blob/master/lib-bitmp4/src/main/java/com/ctech/bitmp4/MP4Encoder.java#L64

but it didn't really affect the output.
Is there any other line of code I need to update to change a frame rate?

COLOR_FormatYUV420SemiPlanar throws MediaCodec$CodecException: Error 0x80001001

Hi,

I am since yesterday trying to make your great library work. However, it shows the error on title. If i change to COLOR_FormatSurface, it throws IllegalStateException in native_dequeueOutputBuffer.

I'm testing in an old ZTE device with Android 5.0. Which device did you test this library?

Do you have any clues on how to fix this?

thanks

guich

E/AndroidRuntime: FATAL EXCEPTION

I get a fatal error when trying to run this:

        val encoder=MP4Encoder().apply{
            setFrameDelay(50)
            setOutputFilePath(getVideoFile(baseDir).path)  // Comes from File(baseDir.getExternalFilesDir(null) + "/XXXX.mp4")
            val firstbmp: Bitmap = ... // (A 68x68 bitmap)
            setOutputSize(firstbmp.width, firstbmp.height). // It's 68x68 pixels
        }
        encoder.startEncode()  // <--- This live throws error

E/AndroidRuntime: FATAL EXCEPTION: Thread-260
    Process: com.dji.videostreamdecodingsample, PID: 14942
    android.media.MediaCodec$CodecException: Error 0xfffffc0e
        at android.media.MediaCodec.native_configure(Native Method)
        at android.media.MediaCodec.configure(MediaCodec.java:2127)
        at android.media.MediaCodec.configure(MediaCodec.java:2043)
        at com.ctech.bitmp4.MP4Encoder.onStart(MP4Encoder.java:67)
        at com.ctech.bitmp4.Encoder.startEncode(Encoder.java:107)
        at com.dji.videostreamdecodingsample.DetectionRecord.saveVideoFile(DetectionRecord.kt:144)

Export and Stop buttons not working

When I press Export button it produces the below error:

E/C2AllocatorIon: >>>SEC mapUsage Mapper1 1
E/ion: ioctl c0044901 failed with code -1: Not a typewriter
E/C2AllocatorIon: >>>SEC mapUsage	0, 1
E/AndroidRuntime: FATAL EXCEPTION: EncodeThread
    Process: com.ctech.bitmp4.sample, PID: 16545
    java.nio.BufferOverflowException
        at java.nio.DirectByteBuffer.put(DirectByteBuffer.java:298)
        at java.nio.ByteBuffer.put(ByteBuffer.java:732)
        at com.ctech.bitmp4.MP4Encoder.onAddFrame(MP4Encoder.java:138)
        at com.ctech.bitmp4.Encoder$1.run(Encoder.java:40)
        at java.lang.Thread.run(Thread.java:919)

When I press Stop button it produces the below error:

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.ctech.bitmp4.sample, PID: 16924
    kotlin.UninitializedPropertyAccessException: lateinit property exportDisposable has not been initialized
        at com.ctech.bitmp4.sample.MainActivity.stopExport(MainActivity.kt:113)
        at com.ctech.bitmp4.sample.MainActivity.access$stopExport(MainActivity.kt:24)
        at com.ctech.bitmp4.sample.MainActivity$onCreate$2.onClick(MainActivity.kt:83)
        at android.view.View.performClick(View.java:7862)
        at android.widget.TextView.performClick(TextView.java:15004)
        at android.view.View.performClickInternal(View.java:7831)
        at android.view.View.access$3600(View.java:879)
        at android.view.View$PerformClick.run(View.java:29359)
        at android.os.Handler.handleCallback(Handler.java:883)
        at android.os.Handler.dispatchMessage(Handler.java:100)
        at android.os.Looper.loop(Looper.java:237)
        at android.app.ActivityThread.main(ActivityThread.java:8167)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:496)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1100)

Can we add sound to mp4 during video creation?

Unable to play video that created from Sample app

I tried to import Sample App and run. When I click Export, the data generated (10MB and length of video is 0:00) could not open with any video player. Using Huewei Y 9 2018, Android 9

java.nio.BufferOverflowException

Hello, i tried running your sample on my phone and it crashes with the below error

2021-02-25 02:20:04.190 14686-14686/? E/h.bitmp4.sampl: Unknown bits set in runtime_flags: 0x8000
2021-02-25 02:20:08.123 14686-14756/com.ctech.bitmp4.sample E/ion: ioctl c0044901 failed with code -1: Invalid argument
2021-02-25 02:20:08.123 14686-14756/com.ctech.bitmp4.sample E/C2AllocatorIon: >>>SEC C2AllocatorIon::mapUsage ion_is_legacy++++++++
2021-02-25 02:20:08.123 14686-14756/com.ctech.bitmp4.sample E/C2AllocatorIon: >>>SEC mapUsage 0, 2000000
2021-02-25 02:20:08.321 14686-14761/com.ctech.bitmp4.sample E/AndroidRuntime: FATAL EXCEPTION: EncodeThread
Process: com.ctech.bitmp4.sample, PID: 14686
java.nio.BufferOverflowException
at java.nio.DirectByteBuffer.put(DirectByteBuffer.java:298)
at java.nio.ByteBuffer.put(ByteBuffer.java:732)
at com.ctech.bitmp4.MP4Encoder.onAddFrame(MP4Encoder.java:138)
at com.ctech.bitmp4.Encoder$1.run(Encoder.java:40)
at java.lang.Thread.run(Thread.java:919)

FATAL EXCEPTION: EncodeThread

When using the library I get the exception:

2022-06-20 14:55:08.688 28013-28522/xxxxxxxxxx E/AndroidRuntime: FATAL EXCEPTION: EncodeThread
Process: com.xxxxxxxxx, PID: 28013
java.nio.BufferOverflowException
at java.nio.DirectByteBuffer.put(DirectByteBuffer.java:298)
at java.nio.ByteBuffer.put(ByteBuffer.java:732)
at com.ctech.bitmp4.MP4Encoder.onAddFrame(MP4Encoder.java:138)
at com.ctech.bitmp4.Encoder$1.run(Encoder.java:40)
at java.lang.Thread.run(Thread.java:920)

Code:
Init:
file = new File(SportUpApplication.getAppContext().getExternalFilesDir(null), "export.mp4");
mp4Encoder=new MP4Encoder();
mp4Encoder.setFrameDelay(20);
mp4Encoder.setOutputFilePath(file.getPath());
mp4Encoder.setOutputSize(640, 360);
mp4Encoder.startEncode();

Loop:
.....
bitmap=Bitmap.createScaledBitmap(bitmap, 640, 360, true);
mp4Encoder.addFrame(bitmap);
.....

End:
mp4Encoder.stopEncode();

What am I doing wrong?

Video is corrupted and green

Hello. I am not sure what I am doing wrong here. The below method is what I use to get the bitmap from a custom SurfaceView class:

private fun getSnapshot(): Bitmap? {
    val surfaceBitmap = Bitmap.createBitmap(800, 600, Bitmap.Config.ARGB_8888)
    val lock = Object()
    val success = AtomicBoolean(false)
    val thread = HandlerThread("PixelCopyHelper")
    thread.start()
    val sHandler = Handler(thread.looper)
    val listener = PixelCopy.OnPixelCopyFinishedListener { copyResult ->
        success.set(copyResult == PixelCopy.SUCCESS)
        synchronized (lock) {
            lock.notify()
        }
    }
    synchronized (lock) {
        PixelCopy.request(video_stream_view.holder.surface, surfaceBitmap, listener, sHandler)
        lock.wait()
    }
    thread.quitSafely()
    return if (success.get()) surfaceBitmap else null
}

video_stream_view is a view that receives a live video feed from an RTSP camera. I then use the below piece of code to save the bitmap using the encoder:

val bitmap = getSnapshot()
bitmap?.let {
    val m = Matrix()
    m.preScale(-1f, -1f)
    val dst = Bitmap.createBitmap(it, 0, 0, it.width, it.height, m, false)
    dst.density = DisplayMetrics.DENSITY_DEFAULT
    if (recordVideo) {
        encoder.addFrame(dst)
    }

The bitmap extracted from the SurfaceView is upside down so I apply some operations to get it upright. When I reapply the bitmap to the SurfaceView from where I extracted it, it looks just fine:

withContext(Dispatchers.Main) {
    video_stream_view.background = BitmapDrawable(resources, dst)
}

But the recorded video looks like this:

Thanks a lot,
Aliaksei