Add red and green borders around channels to mark them as used for live and preview.

[nageru] / httpd.h

diff --git a/httpd.h b/httpd.h
index 524c8d61637e41fd059732271dc0d5d5938f82cd..f5bf55f411574ab20dafc47bb9635728019a45fc 100644 (file)
--- a/httpd.h
+++ b/httpd.h
@@ -9,21 +9,39 @@
 // 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 <vector>
+#include <set>
+#include <string>
+
+struct MHD_Connection;
 
 extern "C" {
+#include <libavcodec/avcodec.h>
 #include <libavformat/avformat.h>
+#include <libavformat/avio.h>
 }
 
 class HTTPD {
 public:
-       HTTPD(const char *output_filename, int width, int height);
+       enum PacketDestination {
+               DESTINATION_FILE_ONLY,
+               DESTINATION_HTTP_ONLY,
+               DESTINATION_FILE_AND_HTTP
+       };
+
+       HTTPD(int width, int height);
        void start(int port);
-       void add_packet(const AVPacket &pkt, int64_t pts, int64_t dts);
+       void add_packet(const AVPacket &pkt, int64_t pts, int64_t dts, PacketDestination destination);
+
+       // 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,
@@ -38,13 +56,23 @@ private:
 
        static void free_stream(void *cls);
 
+       static void request_completed_thunk(void *cls, struct MHD_Connection *connection, void **con_cls, enum MHD_RequestTerminationCode toe);
+
+       void request_completed(struct MHD_Connection *connection, void **con_cls, enum MHD_RequestTerminationCode toe);
+
        class Mux {
        public:
-               Mux(AVFormatContext *avctx, int width, int height);  // Takes ownership of avctx.
+               enum Codec {
+                       CODEC_H264,
+                       CODEC_NV12,  // Uncompressed 4:2:0.
+               };
+
+               Mux(AVFormatContext *avctx, int width, int height, Codec codec);  // Takes ownership of avctx.
                ~Mux();
                void add_packet(const AVPacket &pkt, int64_t pts, int64_t dts);
 
        private:
+               bool seen_keyframe = false;
                AVFormatContext *avctx;
                AVStream *avstream_video, *avstream_audio;
        };
@@ -62,16 +90,16 @@ 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;
-               std::unique_ptr<Mux> mux;
-
                std::mutex buffer_mutex;
                std::condition_variable has_buffered_data;
                std::deque<std::string> buffered_data;  // Protected by <mutex>.
                size_t used_of_buffered_data = 0;  // How many bytes of the first element of <buffered_data> that is already used. Protected by <mutex>.
+
+               std::unique_ptr<Mux> mux;  // Must come last to be destroyed before buffered_data, since the destructor can write bytes.
        };
 
-       std::vector<Stream *> streams;  // Not owned.
+       std::mutex streams_mutex;
+       std::set<Stream *> streams;  // Not owned.
 
        int width, height;
        std::unique_ptr<Mux> file_mux;  // To local disk.