Xiang, Haihao:
> +static int qsv_export_hdr_side_data_av1(AVCodecContext *avctx,
> mfxExtMasteringDisplayColourVolume *mdcv,
> + mfxExtContentLightLevelInfo *clli,
> AVFrame *frame)
> +{
> + if (mdcv->InsertPayloadToggle) {
> + AVMasteringDisplayMetadata *mastering =
> av_mastering_display_metadata_create_side_data(frame);
> + const int chroma_den = 1 << 16;
> + const int max_luma_den = 1 << 8;
> + const int min_luma_den = 1 << 14;
> + int i;
Iterators with loop scope should be preferred if possible (like here).
> +
> + if (!mastering)
> + return AVERROR(ENOMEM);
> +
> + for (i = 0; i < 3; i++) {
> + mastering->display_primaries[i][0] =
> av_make_q(mdcv->DisplayPrimariesX[i], chroma_den);
> + mastering->display_primaries[i][1] =
> av_make_q(mdcv->DisplayPrimariesY[i], chroma_den);
> + }
> +
> + mastering->white_point[0] = av_make_q(mdcv->WhitePointX, chroma_den);
> + mastering->white_point[1] = av_make_q(mdcv->WhitePointY, chroma_den);
> +
> + mastering->max_luminance =
> av_make_q(mdcv->MaxDisplayMasteringLuminance, max_luma_den);
> + mastering->min_luminance =
> av_make_q(mdcv->MinDisplayMasteringLuminance, min_luma_den);
> +
> + mastering->has_luminance = 1;
> + mastering->has_primaries = 1;
> + }
> +
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