415     const int ioChannelCount = audio_channel_count_from_in_mask(preProcCfgParams.chMask);  in main()  local
417     const int ioFrameSize = ioChannelCount * sizeof(short);  in main()
421         std::vector<short> in(frameLength * ioChannelCount);  in main()
422         std::vector<short> out(frameLength * ioChannelCount);  in main()
423         std::vector<short> farIn(frameLength * ioChannelCount);  in main()
428         if (fileChannelCount != ioChannelCount) {  in main()
429             adjust_channels(in.data(), fileChannelCount, in.data(), ioChannelCount, sizeof(short),  in main()
433                     auto* fp = &in[i * ioChannelCount];  in main()
434                     std::fill(fp + 1, fp + ioChannelCount, *fp);  // replicate ch 0  in main()
450             if (fileChannelCount != ioChannelCount) {  in main()
451                 adjust_channels(farIn.data(), fileChannelCount, farIn.data(), ioChannelCount,  in main()
455                         auto* fp = &farIn[i * ioChannelCount];  in main()
456                         std::fill(fp + 1, fp + ioChannelCount, *fp);  // replicate ch 0  in main()
495             if (fileChannelCount != ioChannelCount) {  in main()
496                 adjust_channels(out.data(), ioChannelCount, out.data(), fileChannelCount,  in main()