vidcodec: add support for encode- or decode-only vidcodec modules

2 files changed, 64 insertions, 0 deletions

diff --git a/src/vidcodec.c b/src/vidcodec.c
index 7624ae7..620674a 100644
--- a/src/vidcodec.c
+++ b/src/vidcodec.c
@@ -71,6 +71,58 @@ const struct vidcodec *vidcodec_find(const char *name, const char *variant)
 
 
 /**
+ * Find a Video Encoder by name
+ *
+ * @param name    Name of the Video Encoder to find
+ *
+ * @return Matching Video Encoder if found, otherwise NULL
+ */
+const struct vidcodec *vidcodec_find_encoder(const char *name)
+{
+	struct le *le;
+
+	for (le=vidcodecl.head; le; le=le->next) {
+
+		struct vidcodec *vc = le->data;
+
+		if (name && 0 != str_casecmp(name, vc->name))
+			continue;
+
+		if (vc->ench)
+			return vc;
+	}
+
+	return NULL;
+}
+
+
+/**
+ * Find a Video Decoder by name
+ *
+ * @param name    Name of the Video Decoder to find
+ *
+ * @return Matching Video Decoder if found, otherwise NULL
+ */
+const struct vidcodec *vidcodec_find_decoder(const char *name)
+{
+	struct le *le;
+
+	for (le=vidcodecl.head; le; le=le->next) {
+
+		struct vidcodec *vc = le->data;
+
+		if (name && 0 != str_casecmp(name, vc->name))
+			continue;
+
+		if (vc->dech)
+			return vc;
+	}
+
+	return NULL;
+}
+
+
+/**
  * Get the list of Video Codecs
  *
  * @return List of Video Codecs
diff --git a/src/video.c b/src/video.c
index b9b9282..9c1ea80 100644
--- a/src/video.c
+++ b/src/video.c
@@ -895,6 +895,18 @@ int video_decoder_set(struct video *v, struct vidcodec *vc, int pt_rx,
 	if (!v)
 		return EINVAL;
 
+	/* handle vidcodecs without a decoder */
+	if (!vc->decupdh) {
+		info("video: vidcodec '%s' has no decoder\n", vc->name);
+
+		vc = (struct vidcodec *)vidcodec_find_decoder(vc->name);
+		if (!vc) {
+			warning("video: could not find decoder (%s)\n",
+				vc->name);
+			return ENOENT;
+		}
+	}
+
 	vrx = &v->vrx;
 
 	vrx->pt_rx = pt_rx;