373 	struct snd_pcm_plugin_format srcformat;  in snd_pcm_plug_format_plugins()  local
386 		srcformat.format = params_format(params);  in snd_pcm_plug_format_plugins()
387 		srcformat.rate = params_rate(params);  in snd_pcm_plug_format_plugins()
388 		srcformat.channels = params_channels(params);  in snd_pcm_plug_format_plugins()
397 		srcformat.format = params_format(slave_params);  in snd_pcm_plug_format_plugins()
398 		srcformat.rate = params_rate(slave_params);  in snd_pcm_plug_format_plugins()
399 		srcformat.channels = params_channels(slave_params);  in snd_pcm_plug_format_plugins()
408 	tmpformat = srcformat;  in snd_pcm_plug_format_plugins()
411 		 srcformat.format,  in snd_pcm_plug_format_plugins()
412 		 srcformat.rate,  in snd_pcm_plug_format_plugins()
413 		 srcformat.channels);  in snd_pcm_plug_format_plugins()
420 	if (! rate_match(srcformat.rate, dstformat.rate) &&  in snd_pcm_plug_format_plugins()
421 	    ! snd_pcm_format_linear(srcformat.format)) {  in snd_pcm_plug_format_plugins()
422 		if (srcformat.format != SNDRV_PCM_FORMAT_MU_LAW)  in snd_pcm_plug_format_plugins()
426 						 &srcformat, &tmpformat,  in snd_pcm_plug_format_plugins()
435 		srcformat = tmpformat;  in snd_pcm_plug_format_plugins()
440 	if (srcformat.channels > dstformat.channels) {  in snd_pcm_plug_format_plugins()
442 		err = snd_pcm_plugin_build_route(plug, &srcformat, &tmpformat, &plugin);  in snd_pcm_plug_format_plugins()
443 …pdprintf("channels reduction: src=%i, dst=%i returns %i\n", srcformat.channels, tmpformat.channels…  in snd_pcm_plug_format_plugins()
451 		srcformat = tmpformat;  in snd_pcm_plug_format_plugins()
456 	if (!rate_match(srcformat.rate, dstformat.rate)) {  in snd_pcm_plug_format_plugins()
457 		if (srcformat.format != SNDRV_PCM_FORMAT_S16) {  in snd_pcm_plug_format_plugins()
461 							  &srcformat, &tmpformat,  in snd_pcm_plug_format_plugins()
470 			srcformat = tmpformat;  in snd_pcm_plug_format_plugins()
475         					&srcformat, &tmpformat,  in snd_pcm_plug_format_plugins()
477 …pdprintf("rate down resampling: src=%i, dst=%i returns %i\n", srcformat.rate, tmpformat.rate, err);  in snd_pcm_plug_format_plugins()
485 		srcformat = tmpformat;  in snd_pcm_plug_format_plugins()
490 	if (srcformat.format != dstformat.format) {  in snd_pcm_plug_format_plugins()
492 		if (srcformat.format == SNDRV_PCM_FORMAT_MU_LAW ||  in snd_pcm_plug_format_plugins()
495 							 &srcformat, &tmpformat,  in snd_pcm_plug_format_plugins()
498 		else if (snd_pcm_format_linear(srcformat.format) &&  in snd_pcm_plug_format_plugins()
501 							  &srcformat, &tmpformat,  in snd_pcm_plug_format_plugins()
506 		pdprintf("format change: src=%i, dst=%i returns %i\n", srcformat.format, tmpformat.format, err);  in snd_pcm_plug_format_plugins()
514 		srcformat = tmpformat;  in snd_pcm_plug_format_plugins()
519 	if (srcformat.channels < dstformat.channels) {  in snd_pcm_plug_format_plugins()
521 		err = snd_pcm_plugin_build_route(plug, &srcformat, &tmpformat, &plugin);  in snd_pcm_plug_format_plugins()
522 …pdprintf("channels extension: src=%i, dst=%i returns %i\n", srcformat.channels, tmpformat.channels…  in snd_pcm_plug_format_plugins()
530 		srcformat = tmpformat;  in snd_pcm_plug_format_plugins()
537 						&srcformat,  in snd_pcm_plug_format_plugins()