121 	struct feed_format_info *info;  in feed_format_init()  local
150 	info = malloc(sizeof(*info), M_DEVBUF, M_NOWAIT | M_ZERO);  in feed_format_init()
151 	if (info == NULL)  in feed_format_init()
154 	info->channels = AFMT_CHANNEL(f->desc->in);  in feed_format_init()
156 	info->ibps = AFMT_BPS(f->desc->in);  in feed_format_init()
157 	info->ialign = info->ibps * info->channels;  in feed_format_init()
158 	info->read = rd_op;  in feed_format_init()
160 	info->obps = AFMT_BPS(f->desc->out);  in feed_format_init()
161 	info->oalign = info->obps * info->channels;  in feed_format_init()
162 	info->write = wr_op;  in feed_format_init()
164 	f->data = info;  in feed_format_init()
172 	struct feed_format_info *info;  in feed_format_free()  local
174 	info = f->data;  in feed_format_free()
175 	if (info != NULL)  in feed_format_free()
176 		free(info, M_DEVBUF);  in feed_format_free()
186 	struct feed_format_info *info;  in feed_format_set()  local
188 	info = f->data;  in feed_format_set()
194 		info->channels = (uint32_t)value;  in feed_format_set()
195 		info->ialign = info->ibps * info->channels;  in feed_format_set()
196 		info->oalign = info->obps * info->channels;  in feed_format_set()
210 	struct feed_format_info *info;  in feed_format_feed()  local
215 	info = f->data;  in feed_format_feed()
217 	count = SND_FXROUND(count, info->oalign);  in feed_format_feed()
220 		if (count < info->oalign)  in feed_format_feed()
223 		if (count < info->ialign) {  in feed_format_feed()
224 			src = info->reservoir;  in feed_format_feed()
225 			j = info->ialign;  in feed_format_feed()
227 			if (info->ialign == info->oalign)  in feed_format_feed()
229 			else if (info->ialign > info->oalign)  in feed_format_feed()
230 				j = SND_FXROUND(count, info->ialign);  in feed_format_feed()
232 				j = SND_FXDIV(count, info->oalign) *  in feed_format_feed()
233 				    info->ialign;  in feed_format_feed()
238 		    info->ialign);  in feed_format_feed()
242 		j *= info->channels;  in feed_format_feed()
243 		count -= j * info->obps;  in feed_format_feed()
246 			v = info->read(src);  in feed_format_feed()
247 			info->write(dst, v);  in feed_format_feed()
248 			dst += info->obps;  in feed_format_feed()
249 			src += info->ibps;  in feed_format_feed()