Unify mux.cpp between Nageru and Futatabi.

[nageru] / shared / mux_opts.h

diff --git a/shared/mux_opts.h b/shared/mux_opts.h
new file mode 100644 (file)
index 0000000..0315fb8
--- /dev/null
+++ b/shared/mux_opts.h
@@ -0,0 +1,22 @@
+#ifndef _MUX_OPTS_H
+#define _MUX_OPTS_H 1
+
+// This flag is only supported in FFmpeg 3.3 and up, and we only require 3.1.
+#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(57, 71, 100)
+#define MUX_SKIP_TRAILER "+skip_trailer"
+#else
+#define MUX_SKIP_TRAILER ""
+#endif
+
+#define MUX_OPTS { \
+       /* Make seekable .mov files, and keep MP4 muxer from using unlimited amounts of memory. */ \
+       { "movflags", "empty_moov+frag_keyframe+default_base_moof" MUX_SKIP_TRAILER }, \
+       \
+       /* Make for somewhat less bursty stream output when using .mov. */ \
+       { "frag_duration", "125000" }, \
+       \
+       /* Keep nut muxer from using unlimited amounts of memory. */ \
+       { "write_index", "0" } \
+}
+
+#endif  // !defined(_MUX_OPTS_H)