X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=nageru%2Fdefs.h;h=09743a5abe5e72a9a8c12487c28d4fd756daeb5f;hb=HEAD;hp=c34c2acab2ce8ecbfa73b0377c17030da97ea6c3;hpb=ba3ea588faa8e7908bce832820c08e43a09863fe;p=nageru

diff --git a/nageru/defs.h b/nageru/defs.h
index c34c2ac..369c9b8 100644
--- a/nageru/defs.h
+++ b/nageru/defs.h
@@ -1,14 +1,24 @@
 #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.
 
+// 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
 
@@ -22,8 +32,7 @@
 #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.).