429     const int ioChannelCount = audio_channel_count_from_in_mask(preProcCfgParams.chMask);  in main()  local
431     const int ioFrameSize = ioChannelCount * sizeof(short);  in main()
435         std::vector<short> in(frameLength * ioChannelCount);  in main()
436         std::vector<short> out(frameLength * ioChannelCount);  in main()
437         std::vector<short> farIn(frameLength * ioChannelCount);  in main()
442         if (fileChannelCount != ioChannelCount) {  in main()
443             adjust_channels(in.data(), fileChannelCount, in.data(), ioChannelCount, sizeof(short),  in main()
447                     auto* fp = &in[i * ioChannelCount];  in main()
448                     std::fill(fp + 1, fp + ioChannelCount, *fp);  // replicate ch 0  in main()
464             if (fileChannelCount != ioChannelCount) {  in main()
465                 adjust_channels(farIn.data(), fileChannelCount, farIn.data(), ioChannelCount,  in main()
469                         auto* fp = &farIn[i * ioChannelCount];  in main()
470                         std::fill(fp + 1, fp + ioChannelCount, *fp);  // replicate ch 0  in main()
509             if (fileChannelCount != ioChannelCount) {  in main()
510                 adjust_channels(out.data(), ioChannelCount, out.data(), fileChannelCount,  in main()