--- /dev/null
+From f4fdb9770c76113f38515245fecc5f11b3ace20d Mon Sep 17 00:00:00 2001
+From: "Jan Alexander Steffens (heftig)" <jan.steffens@gmail.com>
+Date: Tue, 4 Dec 2018 17:54:42 +0100
+Subject: [PATCH] fdkaacenc: Remove MODE_2_1
+
+This is not a standard mode and no longer supported by fdk-aac 2.0.0.
+
+For https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/issues/825
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ ext/fdkaac/gstfdkaacenc.c | 4 ----
+ 1 file changed, 4 deletions(-)
+
+diff --git a/ext/fdkaac/gstfdkaacenc.c b/ext/fdkaac/gstfdkaacenc.c
+index ad2bcb492..8410e684c 100644
+--- a/ext/fdkaac/gstfdkaacenc.c
++++ b/ext/fdkaac/gstfdkaacenc.c
+@@ -71,10 +71,6 @@ static const struct
+ GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
+ GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
+ GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT}}, {
+- 3, MODE_2_1, {
+- GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
+- GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
+- GST_AUDIO_CHANNEL_POSITION_LFE1}}, {
+ 4, MODE_1_2_1, {
+ GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
+ GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
+--
+2.11.0
+
--- /dev/null
+From 19d34f6b5e1633d5ec4bb2832c58470f0c829cab Mon Sep 17 00:00:00 2001
+From: "Jan Alexander Steffens (heftig)" <jan.steffens@gmail.com>
+Date: Wed, 5 Dec 2018 10:10:39 +0100
+Subject: [PATCH] fdkaacdec: Use WAV channel mapping instead of interleave
+ setting
+
+The latter is going away in libfdk-aac 2.0.0. Instead, MPEG-style output
+is always non-interleaved and WAV-style output is always interleaved.
+Earlier libfdk-aac also defaults interleaving accordingly.
+
+Since our reordering looks at the associated PCE indices instead of the
+actual channel order, we're agnostic to the mapping.
+
+For https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/issues/825
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ ext/fdkaac/gstfdkaacdec.c | 12 ++++--------
+ 1 file changed, 4 insertions(+), 8 deletions(-)
+
+diff --git a/ext/fdkaac/gstfdkaacdec.c b/ext/fdkaac/gstfdkaacdec.c
+index c27183752..f5136b334 100644
+--- a/ext/fdkaac/gstfdkaacdec.c
++++ b/ext/fdkaac/gstfdkaacdec.c
+@@ -151,17 +151,13 @@ gst_fdkaacdec_set_format (GstAudioDecoder * dec, GstCaps * caps)
+ gst_buffer_unref (codec_data);
+ }
+
++ /* Choose WAV channel mapping to get interleaving even with libfdk-aac 2.0.0
++ * The pChannelIndices retain the indices from the standard MPEG mapping so
++ * we're agnostic to the actual order. */
+ if ((err =
+ aacDecoder_SetParam (self->dec, AAC_PCM_OUTPUT_CHANNEL_MAPPING,
+- 0)) != AAC_DEC_OK) {
+- GST_ERROR_OBJECT (self, "Failed to set output channel mapping: %d", err);
+- return FALSE;
+- }
+-
+- if ((err =
+- aacDecoder_SetParam (self->dec, AAC_PCM_OUTPUT_INTERLEAVED,
+ 1)) != AAC_DEC_OK) {
+- GST_ERROR_OBJECT (self, "Failed to set interleaved output: %d", err);
++ GST_ERROR_OBJECT (self, "Failed to set output channel mapping: %d", err);
+ return FALSE;
+ }
+
+--
+2.11.0
+