X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=httpd.h;h=e8efc030b4706d92b64e89e7ea748c056d8f7c85;hb=c667195e19ec9898b21cc5ebfa29dc8804ec96ad;hp=0a092aaadd3e7c3a926c2920925277764958a858;hpb=b4f16ea9f8969a3ba14be8cd9c88cfe00d19533b;p=nageru

diff --git a/httpd.h b/httpd.h
index 0a092aa..e8efc03 100644
--- a/httpd.h
+++ b/httpd.h
@@ -1,22 +1,41 @@
 #ifndef _HTTPD_H
 #define _HTTPD_H
 
+// A class dealing with stream output, both to HTTP (thus the class name)
+// and to local output files. Since we generally have very few outputs
+// (end clients are not meant to connect directly to our stream; it should be
+// transcoded by something else and then sent to a reflector), we don't need to
+// care a lot about performance. Thus, we solve this by the simplest possible
+// way, namely having one ffmpeg mux per output.
+
 #include <microhttpd.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <condition_variable>
 #include <deque>
-#include <string>
+#include <memory>
 #include <mutex>
-#include <condition_variable>
+#include <string>
 #include <vector>
 
+struct MHD_Connection;
+
 extern "C" {
+#include <libavcodec/avcodec.h>
 #include <libavformat/avformat.h>
+#include <libavformat/avio.h>
 }
 
 class HTTPD {
 public:
-	HTTPD();
+	HTTPD(int width, int height);
 	void start(int port);
-	void add_packet(const AVPacket &pkt);
+	void add_packet(const AVPacket &pkt, int64_t pts, int64_t dts);
+
+	// You can only have one going at the same time.
+	void open_output_file(const std::string &filename);
+	void close_output_file();
 
 private:
 	static int answer_to_connection_thunk(void *cls, MHD_Connection *connection,
@@ -31,23 +50,31 @@ private:
 
 	static void free_stream(void *cls);
 
+	class Mux {
+	public:
+		Mux(AVFormatContext *avctx, int width, int height);  // Takes ownership of avctx.
+		~Mux();
+		void add_packet(const AVPacket &pkt, int64_t pts, int64_t dts);
+
+	private:
+		AVFormatContext *avctx;
+		AVStream *avstream_video, *avstream_audio;
+	};
+
 	class Stream {
 	public:
-		Stream(AVOutputFormat *oformat);
-		~Stream();
+		Stream(AVOutputFormat *oformat, int width, int height);
 
 		static ssize_t reader_callback_thunk(void *cls, uint64_t pos, char *buf, size_t max);
 		ssize_t reader_callback(uint64_t pos, char *buf, size_t max);
 
-		void add_packet(const AVPacket &pkt);
+		void add_packet(const AVPacket &pkt, int64_t pts, int64_t dts);
 
 	private:
 		static int write_packet_thunk(void *opaque, uint8_t *buf, int buf_size);
 		int write_packet(uint8_t *buf, int buf_size);
 
-		AVIOContext *avio;
-		AVFormatContext *avctx;
-		AVStream *avstream_video, *avstream_audio;
+		std::unique_ptr<Mux> mux;
 
 		std::mutex buffer_mutex;
 		std::condition_variable has_buffered_data;
@@ -56,6 +83,9 @@ private:
 	};
 
 	std::vector<Stream *> streams;  // Not owned.
+
+	int width, height;
+	std::unique_ptr<Mux> file_mux;  // To local disk.
 };
 
 #endif  // !defined(_HTTPD_H)