Color profile never able to get bt709

[Mike-the-one]

My always video looks dark or dull, compared to native camera app and third party camera app.
So I used ffprobe to check and I see the color profile is always bt470:

Stream #0:1[0x2](eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, smpte170m/bt470bg/smpte170m, progressive), 2400x1080, 8339 kb/s, 29.28 fps, 90k tbr, 90k tbn (default)

this is from a 3rd party camera app:

Stream #0:0[0x1](eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080, 14589 kb/s, 30 fps, 30 tbr, 90k tbn (default)

So why is that?

[pedroSG94]

Hello,

If the preview is dark or dull. Normally this is related with the camera configuration, the color that you mean is in the encoder but you are not encoding when you are in the preview.

In this case, this could be related with the exposure and fps values.
Are you using 60fps in the prepareVideo method? try use 30fps and let me know if the result is the same.

[Mike-the-one]

Hi, it is 30 fps. I am using S20+ or S20FE, Samsung locked 60fps :-(

The preview actually looks good. It is the final saved video or the stream feed, look dull, compare to stock app. I am thinking probably related to the color profile. I created a patch to change the color profile to 709 but still looked dull. The stock video looks much more brighter.

[pedroSG94]

The video should be exactly the same in the preview and in the stream/record because the render do the same in both cases.
If the preview is fine maybe it is related with a bad configuration but no only in the color profile. We have all this possible cases in the encoder:

//main suspicious
format.setInteger(MediaFormat.KEY_COLOR_RANGE, MediaFormat.COLOR_RANGE_FULL);
//maybe your modification
format.setInteger(MediaFormat.KEY_COLOR_STANDARD, MediaFormat.COLOR_STANDARD_BT2020);
// hdr normally is HLG o ST2084. Maybe the camera is configured in HDR
format.setInteger(MediaFormat.KEY_COLOR_TRANSFER, MediaFormat.COLOR_TRANSFER_HLG);