SequenceEncoder to allow specify important h.264 encoding parameters

Hi,

I am using JCodec to encode a sequence of images to a mp4. I want to use encode using H.264 but I am encountering a problem with the colors. It looks fine with Prores but I want the video to be playable in Windows Media Player.

H.264: https://www.youtube.com/watch?v=8yjfzw9saH4

Prores: https://www.youtube.com/watch?v=3JL-zIfbNbE

SequenceEncoder mEncoder = new SequenceEncoder(NIOUtils.writableChannel(file),
        Rational.R(30, 1), Format.MOV, Codec.H264, null);

for (int i = 0; i < 300; i++) {
    BufferedImage img = new BufferedImage(1080, 1920, BufferedImage.TYPE_INT_RGB);
    Graphics2D g = img.createGraphics();

    GradientPaint p = new GradientPaint(540, 0, Color.GREEN, 540, 1500, Color.BLUE);

    g.setPaint(p);
    g.fillRect(0, 0, 1080, 1920);

    g.setColor(Color.RED);
    g.fillOval(i * 3, i * 6, 200, 200);

    mEncoder.encodeNativeFrame(AWTUtil.fromBufferedImageRGB(img));
}

mEncoder.finish();

Is there some setting that can prevent this behaviour?

I also tried encoding a mkv using VP8 but the duration and frame rate is off.

Thanks in advance,

Isadora

[beruic]

I have this same issue. Can you give an example on how I create my encoder with lower QP?

[svitvitskiy]

I am sorry, yes, I meant decreasing the QP. Thanks for confirming.