diff mbox series

[FFmpeg-devel,05/11] avcodec/aacenc: Move aac_pce_configs to its only user

Message ID DB6PR0101MB221409A4F062B8D3834EE3A28F9A9@DB6PR0101MB2214.eurprd01.prod.exchangelabs.com
State Accepted
Commit c488ee6182017910d58343c9fcece504bf89dad1
Headers show
Series [FFmpeg-devel,01/11] avcodec/flacdsp: Remove unused function parameter | expand

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Commit Message

Andreas Rheinhardt Aug. 1, 2022, 12:23 p.m. UTC
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
---
 libavcodec/aacenc.c | 273 ++++++++++++++++++++++++++++++++++++++++++++
 libavcodec/aacenc.h | 273 --------------------------------------------
 2 files changed, 273 insertions(+), 273 deletions(-)
diff mbox series

Patch

diff --git a/libavcodec/aacenc.c b/libavcodec/aacenc.c
index ee179542bd..4f51485fc4 100644
--- a/libavcodec/aacenc.c
+++ b/libavcodec/aacenc.c
@@ -51,6 +51,279 @@ 
 
 #include "psymodel.h"
 
+/**
+ * List of PCE (Program Configuration Element) for the channel layouts listed
+ * in channel_layout.h
+ *
+ * For those wishing in the future to add other layouts:
+ *
+ * - num_ele: number of elements in each group of front, side, back, lfe channels
+ *            (an element is of type SCE (single channel), CPE (channel pair) for
+ *            the first 3 groups; and is LFE for LFE group).
+ *
+ * - pairing: 0 for an SCE element or 1 for a CPE; does not apply to LFE group
+ *
+ * - index: there are three independent indices for SCE, CPE and LFE;
+ *     they are incremented irrespective of the group to which the element belongs;
+ *     they are not reset when going from one group to another
+ *
+ *     Example: for 7.0 channel layout,
+ *        .pairing = { { 1, 0 }, { 1 }, { 1 }, }, (3 CPE and 1 SCE in front group)
+ *        .index = { { 0, 0 }, { 1 }, { 2 }, },
+ *               (index is 0 for the single SCE but goes from 0 to 2 for the CPEs)
+ *
+ *     The index order impacts the channel ordering. But is otherwise arbitrary
+ *     (the sequence could have been 2, 0, 1 instead of 0, 1, 2).
+ *
+ *     Spec allows for discontinuous indices, e.g. if one has a total of two SCE,
+ *     SCE.0 SCE.15 is OK per spec; BUT it won't be decoded by our AAC decoder
+ *     which at this time requires that indices fully cover some range starting
+ *     from 0 (SCE.1 SCE.0 is OK but not SCE.0 SCE.15).
+ *
+ * - config_map: total number of elements and their types. Beware, the way the
+ *               types are ordered impacts the final channel ordering.
+ *
+ * - reorder_map: reorders the channels.
+ *
+ */
+static const AACPCEInfo aac_pce_configs[] = {
+    {
+        .layout = AV_CHANNEL_LAYOUT_MONO,
+        .num_ele = { 1, 0, 0, 0 },
+        .pairing = { { 0 }, },
+        .index = { { 0 }, },
+        .config_map = { 1, TYPE_SCE, },
+        .reorder_map = { 0 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_STEREO,
+        .num_ele = { 1, 0, 0, 0 },
+        .pairing = { { 1 }, },
+        .index = { { 0 }, },
+        .config_map = { 1, TYPE_CPE, },
+        .reorder_map = { 0, 1 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_2POINT1,
+        .num_ele = { 1, 0, 0, 1 },
+        .pairing = { { 1 }, },
+        .index = { { 0 },{ 0 },{ 0 },{ 0 } },
+        .config_map = { 2, TYPE_CPE, TYPE_LFE },
+        .reorder_map = { 0, 1, 2 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_2_1,
+        .num_ele = { 1, 0, 1, 0 },
+        .pairing = { { 1 },{ 0 },{ 0 } },
+        .index = { { 0 },{ 0 },{ 0 }, },
+        .config_map = { 2, TYPE_CPE, TYPE_SCE },
+        .reorder_map = { 0, 1, 2 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_SURROUND,
+        .num_ele = { 2, 0, 0, 0 },
+        .pairing = { { 1, 0 }, },
+        .index = { { 0, 0 }, },
+        .config_map = { 2, TYPE_CPE, TYPE_SCE, },
+        .reorder_map = { 0, 1, 2 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_3POINT1,
+        .num_ele = { 2, 0, 0, 1 },
+        .pairing = { { 1, 0 }, },
+        .index = { { 0, 0 }, { 0 }, { 0 }, { 0 }, },
+        .config_map = { 3, TYPE_CPE, TYPE_SCE, TYPE_LFE },
+        .reorder_map = { 0, 1, 2, 3 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_4POINT0,
+        .num_ele = { 2, 0, 1, 0 },
+        .pairing = { { 1, 0 }, { 0 }, { 0 }, },
+        .index = { { 0, 0 }, { 0 }, { 1 } },
+        .config_map = { 3, TYPE_CPE, TYPE_SCE, TYPE_SCE },
+        .reorder_map = {  0, 1, 2, 3 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_4POINT1,
+        .num_ele = { 2, 1, 1, 0 },
+        .pairing = { { 1, 0 }, { 0 }, { 0 }, },
+        .index = { { 0, 0 }, { 1 }, { 2 }, { 0 } },
+        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_SCE },
+        .reorder_map = { 0, 1, 2, 3, 4 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_2_2,
+        .num_ele = { 1, 1, 0, 0 },
+        .pairing = { { 1 }, { 1 }, },
+        .index = { { 0 }, { 1 }, },
+        .config_map = { 2, TYPE_CPE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_QUAD,
+        .num_ele = { 1, 0, 1, 0 },
+        .pairing = { { 1 }, { 0 }, { 1 }, },
+        .index = { { 0 }, { 0 }, { 1 } },
+        .config_map = { 2, TYPE_CPE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_5POINT0,
+        .num_ele = { 2, 1, 0, 0 },
+        .pairing = { { 1, 0 }, { 1 }, },
+        .index = { { 0, 0 }, { 1 } },
+        .config_map = { 3, TYPE_CPE, TYPE_SCE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3, 4 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_5POINT1,
+        .num_ele = { 2, 1, 1, 0 },
+        .pairing = { { 1, 0 }, { 0 }, { 1 }, },
+        .index = { { 0, 0 }, { 1 }, { 1 } },
+        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_5POINT0_BACK,
+        .num_ele = { 2, 0, 1, 0 },
+        .pairing = { { 1, 0 }, { 0 }, { 1 } },
+        .index = { { 0, 0 }, { 0 }, { 1 } },
+        .config_map = { 3, TYPE_CPE, TYPE_SCE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3, 4 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_5POINT1_BACK,
+        .num_ele = { 2, 1, 1, 0 },
+        .pairing = { { 1, 0 }, { 0 }, { 1 }, },
+        .index = { { 0, 0 }, { 1 }, { 1 } },
+        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_6POINT0,
+        .num_ele = { 2, 1, 1, 0 },
+        .pairing = { { 1, 0 }, { 1 }, { 0 }, },
+        .index = { { 0, 0 }, { 1 }, { 1 } },
+        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_6POINT0_FRONT,
+        .num_ele = { 2, 1, 0, 0 },
+        .pairing = { { 1, 1 }, { 1 } },
+        .index = { { 1, 0 }, { 2 }, },
+        .config_map = { 3, TYPE_CPE, TYPE_CPE, TYPE_CPE, },
+        .reorder_map = { 0, 1, 2, 3, 4, 5 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_HEXAGONAL,
+        .num_ele = { 2, 0, 2, 0 },
+        .pairing = { { 1, 0 },{ 0 },{ 1, 0 }, },
+        .index = { { 0, 0 },{ 0 },{ 1, 1 } },
+        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE, },
+        .reorder_map = { 0, 1, 2, 3, 4, 5 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_6POINT1,
+        .num_ele = { 2, 1, 2, 0 },
+        .pairing = { { 1, 0 },{ 0 },{ 1, 0 }, },
+        .index = { { 0, 0 },{ 1 },{ 1, 2 } },
+        .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_6POINT1_BACK,
+        .num_ele = { 2, 1, 2, 0 },
+        .pairing = { { 1, 0 }, { 0 }, { 1, 0 }, },
+        .index = { { 0, 0 }, { 1 }, { 1, 2 } },
+        .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_6POINT1_FRONT,
+        .num_ele = { 2, 1, 2, 0 },
+        .pairing = { { 1, 0 }, { 0 }, { 1, 0 }, },
+        .index = { { 0, 0 }, { 1 }, { 1, 2 } },
+        .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_7POINT0,
+        .num_ele = { 2, 1, 1, 0 },
+        .pairing = { { 1, 0 }, { 1 }, { 1 }, },
+        .index = { { 0, 0 }, { 1 }, { 2 }, },
+        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_7POINT0_FRONT,
+        .num_ele = { 2, 1, 1, 0 },
+        .pairing = { { 1, 0 }, { 1 }, { 1 }, },
+        .index = { { 0, 0 }, { 1 }, { 2 }, },
+        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_7POINT1,
+        .num_ele = { 2, 1, 2, 0 },
+        .pairing = { { 1, 0 }, { 0 }, { 1, 1 }, },
+        .index = { { 0, 0 }, { 1 }, { 1, 2 }, { 0 } },
+        .config_map = { 5, TYPE_CPE, TYPE_SCE,  TYPE_SCE, TYPE_CPE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_7POINT1_WIDE,
+        .num_ele = { 2, 1, 2, 0 },
+        .pairing = { { 1, 0 }, { 0 },{  1, 1 }, },
+        .index = { { 0, 0 }, { 1 }, { 1, 2 }, { 0 } },
+        .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_7POINT1_WIDE_BACK,
+        .num_ele = { 2, 1, 2, 0 },
+        .pairing = { { 1, 0 }, { 0 }, { 1, 1 }, },
+        .index = { { 0, 0 }, { 1 }, { 1, 2 }, { 0 } },
+        .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_OCTAGONAL,
+        .num_ele = { 2, 1, 2, 0 },
+        .pairing = { { 1, 0 }, { 1 }, { 1, 0 }, },
+        .index = { { 0, 0 }, { 1 }, { 2, 1 } },
+        .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_CPE, TYPE_SCE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7 },
+    },
+    {   /* Meant for order 2/mixed ambisonics */
+        .layout = { .order = AV_CHANNEL_ORDER_NATIVE, .nb_channels = 9,
+                    .u.mask = AV_CH_LAYOUT_OCTAGONAL | AV_CH_TOP_CENTER },
+        .num_ele = { 2, 2, 2, 0 },
+        .pairing = { { 1, 0 }, { 1, 0 }, { 1, 0 }, },
+        .index = { { 0, 0 }, { 1, 1 }, { 2, 2 } },
+        .config_map = { 6, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7, 8 },
+    },
+    {   /* Meant for order 2/mixed ambisonics */
+        .layout = { .order = AV_CHANNEL_ORDER_NATIVE, .nb_channels = 10,
+                    .u.mask = AV_CH_LAYOUT_6POINT0_FRONT | AV_CH_BACK_CENTER |
+                              AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT | AV_CH_TOP_CENTER },
+        .num_ele = { 2, 2, 2, 0 },
+        .pairing = { { 1, 1 }, { 1, 0 }, { 1, 0 }, },
+        .index = { { 0, 1 }, { 2, 0 }, { 3, 1 } },
+        .config_map = { 6, TYPE_CPE, TYPE_CPE, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 },
+    },
+    {
+        .layout = AV_CHANNEL_LAYOUT_HEXADECAGONAL,
+        .num_ele = { 4, 2, 4, 0 },
+        .pairing = { { 1, 0, 1, 0 }, { 1, 1 }, { 1, 0, 1, 0 }, },
+        .index = { { 0, 0, 1, 1 }, { 2, 3 }, { 4, 2, 5, 3 } },
+        .config_map = { 10, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_CPE, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 },
+    },
+};
+
 static void put_pce(PutBitContext *pb, AVCodecContext *avctx)
 {
     int i, j;
diff --git a/libavcodec/aacenc.h b/libavcodec/aacenc.h
index a001c7ca60..f5a2b78c6d 100644
--- a/libavcodec/aacenc.h
+++ b/libavcodec/aacenc.h
@@ -102,279 +102,6 @@  typedef struct AACPCEInfo {
     uint8_t reorder_map[16];                     ///< maps channels from lavc to aac order
 } AACPCEInfo;
 
-/**
- * List of PCE (Program Configuration Element) for the channel layouts listed
- * in channel_layout.h
- *
- * For those wishing in the future to add other layouts:
- *
- * - num_ele: number of elements in each group of front, side, back, lfe channels
- *            (an element is of type SCE (single channel), CPE (channel pair) for
- *            the first 3 groups; and is LFE for LFE group).
- *
- * - pairing: 0 for an SCE element or 1 for a CPE; does not apply to LFE group
- *
- * - index: there are three independent indices for SCE, CPE and LFE;
- *     they are incremented irrespective of the group to which the element belongs;
- *     they are not reset when going from one group to another
- *
- *     Example: for 7.0 channel layout,
- *        .pairing = { { 1, 0 }, { 1 }, { 1 }, }, (3 CPE and 1 SCE in front group)
- *        .index = { { 0, 0 }, { 1 }, { 2 }, },
- *               (index is 0 for the single SCE but goes from 0 to 2 for the CPEs)
- *
- *     The index order impacts the channel ordering. But is otherwise arbitrary
- *     (the sequence could have been 2, 0, 1 instead of 0, 1, 2).
- *
- *     Spec allows for discontinuous indices, e.g. if one has a total of two SCE,
- *     SCE.0 SCE.15 is OK per spec; BUT it won't be decoded by our AAC decoder
- *     which at this time requires that indices fully cover some range starting
- *     from 0 (SCE.1 SCE.0 is OK but not SCE.0 SCE.15).
- *
- * - config_map: total number of elements and their types. Beware, the way the
- *               types are ordered impacts the final channel ordering.
- *
- * - reorder_map: reorders the channels.
- *
- */
-static const AACPCEInfo aac_pce_configs[] = {
-    {
-        .layout = AV_CHANNEL_LAYOUT_MONO,
-        .num_ele = { 1, 0, 0, 0 },
-        .pairing = { { 0 }, },
-        .index = { { 0 }, },
-        .config_map = { 1, TYPE_SCE, },
-        .reorder_map = { 0 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_STEREO,
-        .num_ele = { 1, 0, 0, 0 },
-        .pairing = { { 1 }, },
-        .index = { { 0 }, },
-        .config_map = { 1, TYPE_CPE, },
-        .reorder_map = { 0, 1 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_2POINT1,
-        .num_ele = { 1, 0, 0, 1 },
-        .pairing = { { 1 }, },
-        .index = { { 0 },{ 0 },{ 0 },{ 0 } },
-        .config_map = { 2, TYPE_CPE, TYPE_LFE },
-        .reorder_map = { 0, 1, 2 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_2_1,
-        .num_ele = { 1, 0, 1, 0 },
-        .pairing = { { 1 },{ 0 },{ 0 } },
-        .index = { { 0 },{ 0 },{ 0 }, },
-        .config_map = { 2, TYPE_CPE, TYPE_SCE },
-        .reorder_map = { 0, 1, 2 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_SURROUND,
-        .num_ele = { 2, 0, 0, 0 },
-        .pairing = { { 1, 0 }, },
-        .index = { { 0, 0 }, },
-        .config_map = { 2, TYPE_CPE, TYPE_SCE, },
-        .reorder_map = { 0, 1, 2 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_3POINT1,
-        .num_ele = { 2, 0, 0, 1 },
-        .pairing = { { 1, 0 }, },
-        .index = { { 0, 0 }, { 0 }, { 0 }, { 0 }, },
-        .config_map = { 3, TYPE_CPE, TYPE_SCE, TYPE_LFE },
-        .reorder_map = { 0, 1, 2, 3 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_4POINT0,
-        .num_ele = { 2, 0, 1, 0 },
-        .pairing = { { 1, 0 }, { 0 }, { 0 }, },
-        .index = { { 0, 0 }, { 0 }, { 1 } },
-        .config_map = { 3, TYPE_CPE, TYPE_SCE, TYPE_SCE },
-        .reorder_map = {  0, 1, 2, 3 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_4POINT1,
-        .num_ele = { 2, 1, 1, 0 },
-        .pairing = { { 1, 0 }, { 0 }, { 0 }, },
-        .index = { { 0, 0 }, { 1 }, { 2 }, { 0 } },
-        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_SCE },
-        .reorder_map = { 0, 1, 2, 3, 4 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_2_2,
-        .num_ele = { 1, 1, 0, 0 },
-        .pairing = { { 1 }, { 1 }, },
-        .index = { { 0 }, { 1 }, },
-        .config_map = { 2, TYPE_CPE, TYPE_CPE },
-        .reorder_map = { 0, 1, 2, 3 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_QUAD,
-        .num_ele = { 1, 0, 1, 0 },
-        .pairing = { { 1 }, { 0 }, { 1 }, },
-        .index = { { 0 }, { 0 }, { 1 } },
-        .config_map = { 2, TYPE_CPE, TYPE_CPE },
-        .reorder_map = { 0, 1, 2, 3 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_5POINT0,
-        .num_ele = { 2, 1, 0, 0 },
-        .pairing = { { 1, 0 }, { 1 }, },
-        .index = { { 0, 0 }, { 1 } },
-        .config_map = { 3, TYPE_CPE, TYPE_SCE, TYPE_CPE },
-        .reorder_map = { 0, 1, 2, 3, 4 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_5POINT1,
-        .num_ele = { 2, 1, 1, 0 },
-        .pairing = { { 1, 0 }, { 0 }, { 1 }, },
-        .index = { { 0, 0 }, { 1 }, { 1 } },
-        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE },
-        .reorder_map = { 0, 1, 2, 3, 4, 5 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_5POINT0_BACK,
-        .num_ele = { 2, 0, 1, 0 },
-        .pairing = { { 1, 0 }, { 0 }, { 1 } },
-        .index = { { 0, 0 }, { 0 }, { 1 } },
-        .config_map = { 3, TYPE_CPE, TYPE_SCE, TYPE_CPE },
-        .reorder_map = { 0, 1, 2, 3, 4 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_5POINT1_BACK,
-        .num_ele = { 2, 1, 1, 0 },
-        .pairing = { { 1, 0 }, { 0 }, { 1 }, },
-        .index = { { 0, 0 }, { 1 }, { 1 } },
-        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE },
-        .reorder_map = { 0, 1, 2, 3, 4, 5 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_6POINT0,
-        .num_ele = { 2, 1, 1, 0 },
-        .pairing = { { 1, 0 }, { 1 }, { 0 }, },
-        .index = { { 0, 0 }, { 1 }, { 1 } },
-        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
-        .reorder_map = { 0, 1, 2, 3, 4, 5 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_6POINT0_FRONT,
-        .num_ele = { 2, 1, 0, 0 },
-        .pairing = { { 1, 1 }, { 1 } },
-        .index = { { 1, 0 }, { 2 }, },
-        .config_map = { 3, TYPE_CPE, TYPE_CPE, TYPE_CPE, },
-        .reorder_map = { 0, 1, 2, 3, 4, 5 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_HEXAGONAL,
-        .num_ele = { 2, 0, 2, 0 },
-        .pairing = { { 1, 0 },{ 0 },{ 1, 0 }, },
-        .index = { { 0, 0 },{ 0 },{ 1, 1 } },
-        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE, },
-        .reorder_map = { 0, 1, 2, 3, 4, 5 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_6POINT1,
-        .num_ele = { 2, 1, 2, 0 },
-        .pairing = { { 1, 0 },{ 0 },{ 1, 0 }, },
-        .index = { { 0, 0 },{ 1 },{ 1, 2 } },
-        .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
-        .reorder_map = { 0, 1, 2, 3, 4, 5, 6 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_6POINT1_BACK,
-        .num_ele = { 2, 1, 2, 0 },
-        .pairing = { { 1, 0 }, { 0 }, { 1, 0 }, },
-        .index = { { 0, 0 }, { 1 }, { 1, 2 } },
-        .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
-        .reorder_map = { 0, 1, 2, 3, 4, 5, 6 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_6POINT1_FRONT,
-        .num_ele = { 2, 1, 2, 0 },
-        .pairing = { { 1, 0 }, { 0 }, { 1, 0 }, },
-        .index = { { 0, 0 }, { 1 }, { 1, 2 } },
-        .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
-        .reorder_map = { 0, 1, 2, 3, 4, 5, 6 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_7POINT0,
-        .num_ele = { 2, 1, 1, 0 },
-        .pairing = { { 1, 0 }, { 1 }, { 1 }, },
-        .index = { { 0, 0 }, { 1 }, { 2 }, },
-        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_CPE },
-        .reorder_map = { 0, 1, 2, 3, 4, 5, 6 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_7POINT0_FRONT,
-        .num_ele = { 2, 1, 1, 0 },
-        .pairing = { { 1, 0 }, { 1 }, { 1 }, },
-        .index = { { 0, 0 }, { 1 }, { 2 }, },
-        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_CPE },
-        .reorder_map = { 0, 1, 2, 3, 4, 5, 6 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_7POINT1,
-        .num_ele = { 2, 1, 2, 0 },
-        .pairing = { { 1, 0 }, { 0 }, { 1, 1 }, },
-        .index = { { 0, 0 }, { 1 }, { 1, 2 }, { 0 } },
-        .config_map = { 5, TYPE_CPE, TYPE_SCE,  TYPE_SCE, TYPE_CPE, TYPE_CPE },
-        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_7POINT1_WIDE,
-        .num_ele = { 2, 1, 2, 0 },
-        .pairing = { { 1, 0 }, { 0 },{  1, 1 }, },
-        .index = { { 0, 0 }, { 1 }, { 1, 2 }, { 0 } },
-        .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_CPE },
-        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_7POINT1_WIDE_BACK,
-        .num_ele = { 2, 1, 2, 0 },
-        .pairing = { { 1, 0 }, { 0 }, { 1, 1 }, },
-        .index = { { 0, 0 }, { 1 }, { 1, 2 }, { 0 } },
-        .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_CPE },
-        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_OCTAGONAL,
-        .num_ele = { 2, 1, 2, 0 },
-        .pairing = { { 1, 0 }, { 1 }, { 1, 0 }, },
-        .index = { { 0, 0 }, { 1 }, { 2, 1 } },
-        .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_CPE, TYPE_SCE },
-        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7 },
-    },
-    {   /* Meant for order 2/mixed ambisonics */
-        .layout = { .order = AV_CHANNEL_ORDER_NATIVE, .nb_channels = 9,
-                    .u.mask = AV_CH_LAYOUT_OCTAGONAL | AV_CH_TOP_CENTER },
-        .num_ele = { 2, 2, 2, 0 },
-        .pairing = { { 1, 0 }, { 1, 0 }, { 1, 0 }, },
-        .index = { { 0, 0 }, { 1, 1 }, { 2, 2 } },
-        .config_map = { 6, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
-        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7, 8 },
-    },
-    {   /* Meant for order 2/mixed ambisonics */
-        .layout = { .order = AV_CHANNEL_ORDER_NATIVE, .nb_channels = 10,
-                    .u.mask = AV_CH_LAYOUT_6POINT0_FRONT | AV_CH_BACK_CENTER |
-                              AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT | AV_CH_TOP_CENTER },
-        .num_ele = { 2, 2, 2, 0 },
-        .pairing = { { 1, 1 }, { 1, 0 }, { 1, 0 }, },
-        .index = { { 0, 1 }, { 2, 0 }, { 3, 1 } },
-        .config_map = { 6, TYPE_CPE, TYPE_CPE, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
-        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 },
-    },
-    {
-        .layout = AV_CHANNEL_LAYOUT_HEXADECAGONAL,
-        .num_ele = { 4, 2, 4, 0 },
-        .pairing = { { 1, 0, 1, 0 }, { 1, 1 }, { 1, 0, 1, 0 }, },
-        .index = { { 0, 0, 1, 1 }, { 2, 3 }, { 4, 2, 5, 3 } },
-        .config_map = { 10, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_CPE, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
-        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 },
-    },
-};
-
 /**
  * AAC encoder context
  */