On 18/01/2019 15:53, Guo, Yejun wrote:
[...]
> +static av_cold int libx265_encode_set_roi(libx265Context *ctx, const AVFrame
> *frame, x265_picture* pic)
> +{
> + // From x265.h:
> + /* An array of quantizer offsets to be applied to this image during
> encoding.
> + * These are added on top of the decisions made by rateControl.
> + * Adaptive quantization must be enabled to use this feature. These
> quantizer
> + * offsets should be given for each 16x16 block (8x8 block, when qg-size
> is 8).
> + * Behavior if quant offsets differ between encoding passes is undefined.
> + */
I don't think you need to copy the API documentation from x265.
> + // 25 is a number that I think it is a possible proper scale
> value.
> + qoffset = qoffset * 25;
Is this based off anything?
> +
> + if (x265pic.quantOffsets) {
> + av_free(x265pic.quantOffsets);
> + x265pic.quantOffsets = NULL;
> + }
av_freep(&x265pic.quantOffsets);
- Derek
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