376 	struct snd_pcm_plugin_format srcformat;  in snd_pcm_plug_format_plugins()  local
389 		srcformat.format = params_format(params);  in snd_pcm_plug_format_plugins()
390 		srcformat.rate = params_rate(params);  in snd_pcm_plug_format_plugins()
391 		srcformat.channels = params_channels(params);  in snd_pcm_plug_format_plugins()
400 		srcformat.format = params_format(slave_params);  in snd_pcm_plug_format_plugins()
401 		srcformat.rate = params_rate(slave_params);  in snd_pcm_plug_format_plugins()
402 		srcformat.channels = params_channels(slave_params);  in snd_pcm_plug_format_plugins()
411 	tmpformat = srcformat;  in snd_pcm_plug_format_plugins()
414 		 srcformat.format,  in snd_pcm_plug_format_plugins()
415 		 srcformat.rate,  in snd_pcm_plug_format_plugins()
416 		 srcformat.channels);  in snd_pcm_plug_format_plugins()
423 	if (! rate_match(srcformat.rate, dstformat.rate) &&  in snd_pcm_plug_format_plugins()
424 	    ! snd_pcm_format_linear(srcformat.format)) {  in snd_pcm_plug_format_plugins()
425 		if (srcformat.format != SNDRV_PCM_FORMAT_MU_LAW)  in snd_pcm_plug_format_plugins()
429 						 &srcformat, &tmpformat,  in snd_pcm_plug_format_plugins()
438 		srcformat = tmpformat;  in snd_pcm_plug_format_plugins()
443 	if (srcformat.channels > dstformat.channels) {  in snd_pcm_plug_format_plugins()
445 		err = snd_pcm_plugin_build_route(plug, &srcformat, &tmpformat, &plugin);  in snd_pcm_plug_format_plugins()
446 …pdprintf("channels reduction: src=%i, dst=%i returns %i\n", srcformat.channels, tmpformat.channels…  in snd_pcm_plug_format_plugins()
454 		srcformat = tmpformat;  in snd_pcm_plug_format_plugins()
459 	if (!rate_match(srcformat.rate, dstformat.rate)) {  in snd_pcm_plug_format_plugins()
460 		if (srcformat.format != SNDRV_PCM_FORMAT_S16) {  in snd_pcm_plug_format_plugins()
464 							  &srcformat, &tmpformat,  in snd_pcm_plug_format_plugins()
473 			srcformat = tmpformat;  in snd_pcm_plug_format_plugins()
478         					&srcformat, &tmpformat,  in snd_pcm_plug_format_plugins()
480 …pdprintf("rate down resampling: src=%i, dst=%i returns %i\n", srcformat.rate, tmpformat.rate, err);  in snd_pcm_plug_format_plugins()
488 		srcformat = tmpformat;  in snd_pcm_plug_format_plugins()
493 	if (srcformat.format != dstformat.format) {  in snd_pcm_plug_format_plugins()
495 		if (srcformat.format == SNDRV_PCM_FORMAT_MU_LAW ||  in snd_pcm_plug_format_plugins()
498 							 &srcformat, &tmpformat,  in snd_pcm_plug_format_plugins()
501 		else if (snd_pcm_format_linear(srcformat.format) &&  in snd_pcm_plug_format_plugins()
504 							  &srcformat, &tmpformat,  in snd_pcm_plug_format_plugins()
509 		pdprintf("format change: src=%i, dst=%i returns %i\n", srcformat.format, tmpformat.format, err);  in snd_pcm_plug_format_plugins()
517 		srcformat = tmpformat;  in snd_pcm_plug_format_plugins()
522 	if (srcformat.channels < dstformat.channels) {  in snd_pcm_plug_format_plugins()
524 		err = snd_pcm_plugin_build_route(plug, &srcformat, &tmpformat, &plugin);  in snd_pcm_plug_format_plugins()
525 …pdprintf("channels extension: src=%i, dst=%i returns %i\n", srcformat.channels, tmpformat.channels…  in snd_pcm_plug_format_plugins()
533 		srcformat = tmpformat;  in snd_pcm_plug_format_plugins()
540 						&srcformat,  in snd_pcm_plug_format_plugins()