Print some useful information while putting together the procqueue

src/pq_alsa.c

@@ -148,6 +148,7 @@ out_close:
 int
 pq_queue_alsa_input(struct pq *pq, const char *hwdev, unsigned int blk_len)
 {
+	printf("PQ: Adding ALSA input (dev='%s', blk_len=%u)\n", hwdev, blk_len);
 	return pq_queue_alsa_op(pq, hwdev, blk_len, 1);
 }
 
@@ -160,6 +161,7 @@ pq_queue_alsa_input(struct pq *pq, const char *hwdev, unsigned int blk_len)
 int
 pq_queue_alsa_output(struct pq *pq, const char *hwdev, unsigned int blk_len)
 {
+	printf("PQ: Adding ALSA output (dev='%s', blk_len=%u)\n", hwdev, blk_len);
 	return pq_queue_alsa_op(pq, hwdev, blk_len, 0);
 }
 

src/pq_codec.c

@@ -69,6 +69,9 @@ pq_queue_codec(struct pq *pq, const struct codec_desc *codec, int enc_dec_n)
 
 	item->exit = codec->codec_exit;
 
+	printf("PQ: Adding Codec %s, %s format %s\n", codec->name,
+		enc_dec_n ? "encoding to" : "decoding from", fmt->name);
+
 	if (!item->proc)
 		return -ENOTSUP;
 

src/pq_file.c

@@ -97,6 +97,7 @@ pq_queue_file_op(struct pq *pq, FILE *fh, unsigned int blk_len, int in_out_n)
 int
 pq_queue_file_input(struct pq *pq, FILE *src, unsigned int blk_len)
 {
+	printf("PQ: Adding file input (blk_len=%u)\n", blk_len);
 	return pq_queue_file_op(pq, src, blk_len, 1);
 }
 
@@ -109,5 +110,6 @@ pq_queue_file_input(struct pq *pq, FILE *src, unsigned int blk_len)
 int
 pq_queue_file_output(struct pq *pq, FILE *dst, unsigned int blk_len)
 {
+	printf("PQ: Adding file output (blk_len=%u)\n", blk_len);
 	return pq_queue_file_op(pq, dst, blk_len, 0);
 }

src/pq_format.c

@@ -45,16 +45,20 @@ pq_queue_fmt_convert(struct pq *pq, const struct format_desc *fmt, int to_from_n
 	if (!codec) {
 		fprintf(stderr, "Cannot determine codec from format %s\n", fmt->name);
 		return -EINVAL;
+	}
+
 
 	item = pq_add_item(pq);
 	if (!item)
 		return -ENOMEM;
 
 	if (to_from_n) {
+		printf("PQ: Adding conversion from canon to %s (for codec %s)\n", fmt->name, codec->name);
 		item->len_in  = codec->canon_frame_len;
 		item->len_out = fmt->frame_len;
 		item->state   = fmt->conv_from_canon;
 	} else {
+		printf("PQ: Adding conversion from %s to canon (for codec %s)\n", fmt->name, codec->name);
 		item->len_in  = fmt->frame_len;
 		item->len_out = codec->canon_frame_len;
 		item->state   = fmt->conv_to_canon;

src/pq_rtp.c

@@ -240,6 +240,7 @@ pq_queue_rtp_op(struct pq *pq, int udp_fd, unsigned int blk_len, int in_out_n)
 int
 pq_queue_rtp_input(struct pq *pq, int udp_fd, unsigned int blk_len)
 {
+	printf("PQ: Adding RTP input (blk_len=%u)\n", blk_len);
 	return pq_queue_rtp_op(pq, udp_fd, blk_len, 1);
 }
 
@@ -251,5 +252,6 @@ pq_queue_rtp_input(struct pq *pq, int udp_fd, unsigned int blk_len)
 int
 pq_queue_rtp_output(struct pq *pq, int udp_fd, unsigned int blk_len)
 {
+	printf("PQ: Adding RTP output (blk_len=%u)\n", blk_len);
 	return pq_queue_rtp_op(pq, udp_fd, blk_len, 0);
 }