Add RTP

app/src/rtp.h

@@ -0,0 +1,44 @@
+#ifndef SC_RTP_H
+#define SC_RTP_H
+
+#include "common.h"
+
+#include <stdbool.h>
+#include <libavformat/avformat.h>
+
+#include "coords.h"
+#include "trait/packet_sink.h"
+#include "util/queue.h"
+#include "util/thread.h"
+
+struct sc_rtp_packet {
+    AVPacket *packet;
+    struct sc_rtp_packet *next;
+};
+
+struct sc_rtp_queue SC_QUEUE(struct sc_rtp_packet);
+
+struct sc_rtp {
+    struct sc_packet_sink packet_sink; // packet sink trait;
+
+    char *out_url;
+    AVFormatContext *ctx;
+    struct sc_size declared_frame_size;
+    bool header_written;
+
+    sc_thread thread;
+    sc_mutex mutex;
+    sc_cond queue_cond;
+    bool stopped; // set on rtp_close()
+    bool failed; // set on packet write failure
+    struct sc_rtp_queue queue;
+};
+
+bool
+sc_rtp_init(struct sc_rtp *rtp, const char *out_url,
+            struct sc_size declared_frame_size);
+
+void
+sc_rtp_destroy(struct sc_rtp *rtp);
+
+#endif