small cleanups

Remove the temp storage for formats and props now that we get a builder
from the host to write into.

spa/plugins/alsa/alsa-sink.c

@@ -240,16 +240,6 @@ impl_node_port_get_info(struct spa_node *node,
 	return SPA_RESULT_OK;
 }
 
-static int port_enum_formats(struct spa_node *node,
-			     enum spa_direction direction, uint32_t port_id,
-			     uint32_t *index,
-			     const struct spa_pod_object *filter,
-			     struct spa_pod_builder *builder)
-{
-	struct state *this = SPA_CONTAINER_OF(node, struct state, node);
-	return spa_alsa_enum_format(this, index, filter, builder);
-}
-
 static int port_get_format(struct spa_node *node,
 			  enum spa_direction direction, uint32_t port_id,
 			  uint32_t *index,
@@ -262,7 +252,7 @@ static int port_get_format(struct spa_node *node,
 	if (!this->have_format)
 		return SPA_RESULT_NO_FORMAT;
 
-	if(*index > 0)
+	if (*index > 0)
 		return SPA_RESULT_ENUM_END;
 
 	spa_pod_builder_object(builder,
@@ -297,7 +287,7 @@ impl_node_port_enum_params(struct spa_node *node,
 	spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), SPA_RESULT_INVALID_PORT);
 
 	if (id == t->param.idEnumFormat) {
-		return port_enum_formats(node, direction, port_id, index, filter, builder);
+		return spa_alsa_enum_format(this, index, filter, builder);
 	}
 	else if (id == t->param.idFormat) {
 		return port_get_format(node, direction, port_id, index, filter, builder);

spa/plugins/alsa/alsa-source.c

@@ -254,17 +254,6 @@ static void recycle_buffer(struct state *this, uint32_t buffer_id)
 	spa_list_append(&this->free, &b->link);
 }
 
-static int port_enum_formats(struct spa_node *node,
-			     enum spa_direction direction,
-			     uint32_t port_id,
-			     uint32_t *index,
-			     const struct spa_pod_object *filter,
-			     struct spa_pod_builder *builder)
-{
-	struct state *this = SPA_CONTAINER_OF(node, struct state, node);
-	return spa_alsa_enum_format(this, index, filter, builder);
-}
-
 static int port_get_format(struct spa_node *node,
 			   enum spa_direction direction, uint32_t port_id,
 			   uint32_t *index,
@@ -311,12 +300,15 @@ impl_node_port_enum_params(struct spa_node *node,
 	spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), SPA_RESULT_INVALID_PORT);
 
 	if (id == t->param.idEnumFormat) {
-		return port_enum_formats(node, direction, port_id, index, filter, builder);
+		return spa_alsa_enum_format(this, index, filter, builder);
 	}
 	else if (id == t->param.idFormat) {
 		return port_get_format(node, direction, port_id, index, filter, builder);
 	}
 	else if (id == t->param.idBuffers) {
+		if (*index > 0)
+			return SPA_RESULT_ENUM_END;
+
 		spa_pod_builder_object(builder,
 			id, t->param_alloc_buffers.Buffers,
 			":", t->param_alloc_buffers.size,    "i", this->props.min_latency * this->frame_size,

spa/plugins/alsa/alsa-utils.h

@@ -132,7 +132,6 @@ struct state {
 
 	bool have_format;
 	struct spa_audio_info current_format;
-	uint8_t format_buffer[1024];
 
 	snd_pcm_uframes_t buffer_frames;
 	snd_pcm_uframes_t period_frames;
@@ -142,8 +141,6 @@ struct state {
 	size_t frame_size;
 
 	struct spa_port_info info;
-	uint32_t params[3];
-	uint8_t params_buffer[1024];
 	struct spa_port_io *io;
 
 	struct buffer buffers[MAX_BUFFERS];

spa/plugins/audiomixer/audiomixer.c

@@ -114,7 +114,6 @@ struct impl {
 	struct port in_ports[MAX_PORTS];
 	struct port out_ports[1];
 
-	uint8_t format_buffer[4096];
 	bool have_format;
 	int n_formats;
 	struct spa_audio_info format;

spa/plugins/audiotestsrc/audiotestsrc.c

@@ -122,7 +122,6 @@ struct impl {
 	struct spa_log *log;
 	struct spa_loop *data_loop;
 
-	uint8_t props_buffer[512];
 	struct props props;
 
 	const struct spa_node_callbacks *callbacks;
@@ -137,7 +136,6 @@ struct impl {
 
 	bool have_format;
 	struct spa_audio_info current_format;
-	uint8_t format_buffer[1024];
 	size_t bpf;
 	render_func_t render_func;
 	double accumulator;

spa/plugins/v4l2/v4l2-source.c

@@ -121,7 +121,6 @@ struct port {
 
 	bool have_format;
 	struct spa_video_info current_format;
-	uint8_t format_buffer[1024];
 
 	int fd;
 	bool opened;
@@ -154,7 +153,6 @@ struct impl {
 
 	uint32_t seq;
 
-	uint8_t props_buffer[512];
 	struct props props;
 
 	const struct spa_node_callbacks *callbacks;
@@ -455,16 +453,6 @@ static int impl_node_port_get_info(struct spa_node *node,
 	return SPA_RESULT_OK;
 }
 
-static int port_enum_formats(struct spa_node *node,
-			     enum spa_direction direction, uint32_t port_id,
-			     uint32_t *index,
-			     const struct spa_pod_object *filter,
-			     struct spa_pod_builder *builder)
-{
-	struct impl *this = SPA_CONTAINER_OF(node, struct impl, node);
-	return spa_v4l2_enum_format(this, index, filter, builder);
-}
-
 static int port_get_format(struct spa_node *node,
 			   enum spa_direction direction, uint32_t port_id,
 			   uint32_t *index,
@@ -547,7 +535,7 @@ static int impl_node_port_enum_params(struct spa_node *node,
 			return SPA_RESULT_ENUM_END;
 	}
 	else if (id == t->param.idEnumFormat) {
-		return port_enum_formats(node, direction, port_id, index, filter, builder);
+		return spa_v4l2_enum_format(this, index, filter, builder);
 	}
 	else if (id == t->param.idFormat) {
 		return port_get_format(node, direction, port_id, index, filter, builder);

spa/plugins/v4l2/v4l2-utils.c

@@ -683,7 +683,6 @@ spa_v4l2_enum_format(struct impl *this,
 	media_subtype = *SPA_MEMBER(&this->type, info->media_subtype_offset, uint32_t);
 	video_format = *SPA_MEMBER(&this->type, info->format_offset, uint32_t);
 
-	spa_pod_builder_init(builder, port->format_buffer, sizeof(port->format_buffer));
 	spa_pod_builder_push_object(builder, &f[0],
 			this->type.param.idEnumFormat, this->type.format);
 	spa_pod_builder_add(builder,

spa/plugins/videotestsrc/videotestsrc.c

@@ -111,7 +111,6 @@ struct impl {
 	struct spa_log *log;
 	struct spa_loop *data_loop;
 
-	uint8_t props_buffer[512];
 	struct props props;
 
 	const struct spa_node_callbacks *callbacks;
@@ -126,7 +125,6 @@ struct impl {
 
 	bool have_format;
 	struct spa_video_info current_format;
-	uint8_t format_buffer[1024];
 	size_t bpp;
 	int stride;
 

spa/plugins/volume/volume.c

@@ -51,7 +51,6 @@ struct port {
 	bool have_format;
 
 	struct spa_port_info info;
-	uint8_t params_buffer[1024];
 
 	struct buffer buffers[MAX_BUFFERS];
 	uint32_t n_buffers;
@@ -112,7 +111,6 @@ struct impl {
 	const struct spa_node_callbacks *callbacks;
 	void *callbacks_data;
 
-	uint8_t format_buffer[1024];
 	struct spa_audio_info current_format;
 	int bpf;