load images efficiently in libgdx

I wanna load a large byte[] of colors. In opengl, i want to draw it like a video (for splashscreen). For now, I'm load each pixmap like GIF, but it takes too much memory (RAM). (I did it on the Android platform with libgdx).

public ImageSequences(int width, int height, byte[][] pixmaps) {
    this.width = width;
    this.height = height;
    this.frameCount = pixmaps.length;
    this.data = new Pixmap[frameCount];
    for (int i = 0; i < frameCount; i++) {
        this.data[i] = new Pixmap(width, height, mainFormat);
        Pixmap p = new Pixmap(pixmaps[i], 0, pixmaps[i].length);
        this.data[i].drawPixmap(p, 0, 0, p.getWidth(), p.getHeight(), 0, 0, width, height);
        p.dispose();
    }
    this.base = new Texture(width, height, mainFormat);
}

int lastIndx = -1;
public Texture getKey(float timeState) {
    int i = Math.round(timeState * 60) % frameCount;
    if (lastIndx == i)
        return base;
    lastIndx = i;
    base.draw(data[i], 0, 0);
    return base;
}

And

        int I = 574 + 1;// 574
        byte[][] dats = new byte[I][];
        int width = 1400;
        int height = 720;
        for (int i = 0; i < I; i++) {
            dats[i] = Gdx.files.internal(String.format("seq/anim_%05d.jpg", i)).readBytes();
        }
        anim = new ImageSequences(width, height, dats);

Using the video player method looks more efficient. Any solution?

I hope, it can be done on multiplatform and without additional libraries.

Edit: with 500+ images and 1280x720 pixels or more high.

Sorry for bad english and Thanks.