585     jpeg_compress_struct cinfo = {};  in encodeJpegYU12()  local
592     cinfo.err = jpeg_std_error(&jerr);  in encodeJpegYU12()
594     cinfo.err->output_message = [](j_common_ptr cinfo) {  in encodeJpegYU12()  argument
598         (*cinfo->err->format_message)(cinfo, buffer);  in encodeJpegYU12()
601     cinfo.err->error_exit = [](j_common_ptr cinfo) {  in encodeJpegYU12()  argument
602         (*cinfo->err->output_message)(cinfo);  in encodeJpegYU12()
603         if (cinfo->client_data) {  in encodeJpegYU12()
604             auto& dmgr = *reinterpret_cast<CustomJpegDestMgr*>(cinfo->client_data);  in encodeJpegYU12()
610     jpeg_create_compress(&cinfo);  in encodeJpegYU12()
617     cinfo.client_data = static_cast<void*>(&dmgr);  in encodeJpegYU12()
621     dmgr.mgr.init_destination = [](j_compress_ptr cinfo) {  in encodeJpegYU12()  argument
622         auto& dmgr = reinterpret_cast<CustomJpegDestMgr&>(*cinfo->dest);  in encodeJpegYU12()
628     dmgr.mgr.empty_output_buffer = [](j_compress_ptr cinfo __unused) {  in encodeJpegYU12()
633     dmgr.mgr.term_destination = [](j_compress_ptr cinfo) {  in encodeJpegYU12()  argument
634         auto& dmgr = reinterpret_cast<CustomJpegDestMgr&>(*cinfo->dest);  in encodeJpegYU12()
638     cinfo.dest = reinterpret_cast<struct jpeg_destination_mgr*>(&dmgr);  in encodeJpegYU12()
643     cinfo.image_width = inSz.width;  in encodeJpegYU12()
644     cinfo.image_height = inSz.height;  in encodeJpegYU12()
645     cinfo.input_components = 3;  in encodeJpegYU12()
646     cinfo.in_color_space = JCS_YCbCr;  in encodeJpegYU12()
649     jpeg_set_defaults(&cinfo);  in encodeJpegYU12()
651     jpeg_set_quality(&cinfo, jpegQuality, 1);  in encodeJpegYU12()
652     jpeg_set_colorspace(&cinfo, JCS_YCbCr);  in encodeJpegYU12()
653     cinfo.raw_data_in = 1;  in encodeJpegYU12()
654     cinfo.dct_method = JDCT_IFAST;  in encodeJpegYU12()
660     cinfo.comp_info[0].h_samp_factor = 2;  in encodeJpegYU12()
661     cinfo.comp_info[0].v_samp_factor = 2;  in encodeJpegYU12()
662     cinfo.comp_info[1].h_samp_factor = 1;  in encodeJpegYU12()
663     cinfo.comp_info[1].v_samp_factor = 1;  in encodeJpegYU12()
664     cinfo.comp_info[2].h_samp_factor = 1;  in encodeJpegYU12()
665     cinfo.comp_info[2].v_samp_factor = 1;  in encodeJpegYU12()
668     jpeg_start_compress(&cinfo, TRUE);  in encodeJpegYU12()
671     int maxVSampFactor = cinfo.max_v_samp_factor;  in encodeJpegYU12()
672     int cVSubSampling = cinfo.comp_info[0].v_samp_factor / cinfo.comp_info[1].v_samp_factor;  in encodeJpegYU12()
705         jpeg_write_marker(&cinfo, JPEG_APP0 + 1, static_cast<const JOCTET*>(app1Buffer), app1Size);  in encodeJpegYU12()
710     while (cinfo.next_scanline < cinfo.image_height) {  in encodeJpegYU12()
712         const uint32_t nl = cinfo.next_scanline;  in encodeJpegYU12()
716         uint32_t done = jpeg_write_raw_data(&cinfo, planes, batchSize);  in encodeJpegYU12()
720                   batchSize, cinfo.next_scanline, cinfo.image_height);  in encodeJpegYU12()
726     jpeg_finish_compress(&cinfo);  in encodeJpegYU12()