#ifndef _DEFS_H
#define _DEFS_H
-#include <libavformat/version.h>
-
#define TYPICAL_FPS 60
#define FAKE_FPS 25 // Must be an integer.
// #define MAX_VIDEO_CARDS 16 // defined in shared_defs.h.
#define MAX_ALSA_CARDS 16
#define MAX_BUSES 256 // Audio buses.
-#define FRAME_SIZE (8 << 20) // 8 MB. (FIXME: Not enough for a 2160p frame!)
+
+// FRAME_SIZE is the default frame size, in bytes. FFmpeg inputs (video files and SRT streams)
+// can allocate larger frames as needed; USB and DeckLink outputs always use FRAME_SIZE.
+// We should eventually add support for at least DeckLink outputs, allowing us to capture
+// 2160p frames. Also, it would allow us to lower the default frame size to the maximum
+// bmusb supports (2 MB just about covers 1080i 4:2:2, then add some for 10-bit?) to waste
+// less memory.
+//
+// As a general sanity check, we also have a MAX_FRAME_SIZE that even dynamic allocation
+// will not go past.
+#define FRAME_SIZE (8 << 20) // 8 MB (just enough for 1080p RGBA).
+#define MAX_FRAME_SIZE (140 << 20) // 140 MB; enough for 8192*4320 RGBA and then some.
// For deinterlacing. See also comments on InputState.
#define FRAME_HISTORY_LENGTH 5
#define DEFAULT_STREAM_MUX_NAME "nut" // Only for HTTP. Local dump guesses from LOCAL_DUMP_SUFFIX.
#define DEFAULT_HTTPD_PORT 9095
#define DEFAULT_SRT_PORT 9710
-
-#include "shared/shared_defs.h"
+#define DEFAULT_SRT_OUTPUT_LATENCY_MS 2000
// In number of frames. Comes in addition to any internal queues in x264
// (frame threading, lookahead, etc.).