367 	struct snd_pcm_plugin_format srcformat;  in snd_pcm_plug_format_plugins()  local
380 		srcformat.format = params_format(params);  in snd_pcm_plug_format_plugins()
381 		srcformat.rate = params_rate(params);  in snd_pcm_plug_format_plugins()
382 		srcformat.channels = params_channels(params);  in snd_pcm_plug_format_plugins()
391 		srcformat.format = params_format(slave_params);  in snd_pcm_plug_format_plugins()
392 		srcformat.rate = params_rate(slave_params);  in snd_pcm_plug_format_plugins()
393 		srcformat.channels = params_channels(slave_params);  in snd_pcm_plug_format_plugins()
402 	tmpformat = srcformat;  in snd_pcm_plug_format_plugins()
405 		 srcformat.format,  in snd_pcm_plug_format_plugins()
406 		 srcformat.rate,  in snd_pcm_plug_format_plugins()
407 		 srcformat.channels);  in snd_pcm_plug_format_plugins()
414 	if (! rate_match(srcformat.rate, dstformat.rate) &&  in snd_pcm_plug_format_plugins()
415 	    ! snd_pcm_format_linear(srcformat.format)) {  in snd_pcm_plug_format_plugins()
416 		if (srcformat.format != SNDRV_PCM_FORMAT_MU_LAW)  in snd_pcm_plug_format_plugins()
420 						 &srcformat, &tmpformat,  in snd_pcm_plug_format_plugins()
429 		srcformat = tmpformat;  in snd_pcm_plug_format_plugins()
434 	if (srcformat.channels > dstformat.channels) {  in snd_pcm_plug_format_plugins()
436 		err = snd_pcm_plugin_build_route(plug, &srcformat, &tmpformat, &plugin);  in snd_pcm_plug_format_plugins()
437 …pdprintf("channels reduction: src=%i, dst=%i returns %i\n", srcformat.channels, tmpformat.channels…  in snd_pcm_plug_format_plugins()
445 		srcformat = tmpformat;  in snd_pcm_plug_format_plugins()
450 	if (!rate_match(srcformat.rate, dstformat.rate)) {  in snd_pcm_plug_format_plugins()
451 		if (srcformat.format != SNDRV_PCM_FORMAT_S16) {  in snd_pcm_plug_format_plugins()
455 							  &srcformat, &tmpformat,  in snd_pcm_plug_format_plugins()
464 			srcformat = tmpformat;  in snd_pcm_plug_format_plugins()
469         					&srcformat, &tmpformat,  in snd_pcm_plug_format_plugins()
471 …pdprintf("rate down resampling: src=%i, dst=%i returns %i\n", srcformat.rate, tmpformat.rate, err);  in snd_pcm_plug_format_plugins()
479 		srcformat = tmpformat;  in snd_pcm_plug_format_plugins()
484 	if (srcformat.format != dstformat.format) {  in snd_pcm_plug_format_plugins()
486 		if (srcformat.format == SNDRV_PCM_FORMAT_MU_LAW ||  in snd_pcm_plug_format_plugins()
489 							 &srcformat, &tmpformat,  in snd_pcm_plug_format_plugins()
492 		else if (snd_pcm_format_linear(srcformat.format) &&  in snd_pcm_plug_format_plugins()
495 							  &srcformat, &tmpformat,  in snd_pcm_plug_format_plugins()
500 		pdprintf("format change: src=%i, dst=%i returns %i\n", srcformat.format, tmpformat.format, err);  in snd_pcm_plug_format_plugins()
508 		srcformat = tmpformat;  in snd_pcm_plug_format_plugins()
513 	if (srcformat.channels < dstformat.channels) {  in snd_pcm_plug_format_plugins()
515 		err = snd_pcm_plugin_build_route(plug, &srcformat, &tmpformat, &plugin);  in snd_pcm_plug_format_plugins()
516 …pdprintf("channels extension: src=%i, dst=%i returns %i\n", srcformat.channels, tmpformat.channels…  in snd_pcm_plug_format_plugins()
524 		srcformat = tmpformat;  in snd_pcm_plug_format_plugins()
531 						&srcformat,  in snd_pcm_plug_format_plugins()