From 05ca4c2bf7745c9b56cfc65de3aaab6b1bbbbfa6 Mon Sep 17 00:00:00 2001
From: Marcin Gorzel <26985965+mgorzel@users.noreply.github.com>
Date: Fri, 22 Feb 2019 17:53:27 +0000
Subject: [PATCH] Add Opus to sound sample descriptions

That should enable injecting metadata into spherical videos with spatial audio encoded using Opus (in the MP4 container, with the  '-strict -2' option).
---
 spatialmedia/mpeg/constants.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/spatialmedia/mpeg/constants.py b/spatialmedia/mpeg/constants.py
index eb61562..72f737a 100755
--- a/spatialmedia/mpeg/constants.py
+++ b/spatialmedia/mpeg/constants.py
@@ -56,6 +56,7 @@
 TAG_ALAW = b"alaw"
 TAG_LPCM = b"lpcm"
 TAG_MP4A = b"mp4a"
+TAG_OPUS = b"Opus"
 
 SOUND_SAMPLE_DESCRIPTIONS = frozenset([
     TAG_NONE,
@@ -70,6 +71,7 @@
     TAG_ALAW,
     TAG_LPCM,
     TAG_MP4A,
+    TAG_OPUS,
     ])
 
 CONTAINERS_LIST = frozenset([