From 6fe3925e18e213d864c09b08afe7cbced9cbd916 Mon Sep 17 00:00:00 2001
From: Carl Kittelberger <icedream@icedream.pw>
Date: Tue, 10 Apr 2018 16:03:39 +0200
Subject: [PATCH] Explicitly set AVFMT_FLAG_CUSTOM_IO.

---
 internal/media/demuxer.go | 1 +
 internal/media/muxer.go   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/internal/media/demuxer.go b/internal/media/demuxer.go
index b6cada4..1892778 100644
--- a/internal/media/demuxer.go
+++ b/internal/media/demuxer.go
@@ -59,6 +59,7 @@ func Demux(r io.ReadCloser) (demuxer *Demuxer) {
 		}
 		defer avioCtx.Release()
 		ctx.SetPb(avioCtx)
+		ctx.SetFlag(0x0080) // AVFMT_FLAG_CUSTOM_IO
 		ctx.OpenInput("")
 
 		// fmt.Println("=== FFMPEG DUMP OF INPUT ===")
diff --git a/internal/media/muxer.go b/internal/media/muxer.go
index b6a6f2d..58b4703 100644
--- a/internal/media/muxer.go
+++ b/internal/media/muxer.go
@@ -46,6 +46,7 @@ func Mux(muxer string, readers ...io.ReadCloser) (retval io.Reader) {
 		}
 		defer output.AvioCtx.Release()
 		output.Ctx.SetPb(output.AvioCtx)
+		output.Ctx.SetFlag(0x0080) // AVFMT_FLAG_CUSTOM_IO
 
 		inputs := make([]Instance, len(readers))