Revert "Update opus to 1.3.1 and opusfile to 0.11"

This reverts commit e00426c512a7905f5f925d382c443bab7a0ca693.

The way we handle platform-specific intrinsics is not good, so the
current state will not compile on armv8. This commit also requires
SSE4.1 support, which is likely not a good idea for portable binaries.

We'll have to redo this with more caution after 3.2 is released, or
we might simply drop opus as we're only using it as dependency for
theora right now.

Fixes #33606.

1 files changed, 2 insertions, 0 deletions

diff --git a/thirdparty/opus/silk/tables_LTP.c b/thirdparty/opus/silk/tables_LTP.c
index 5e12c8643e..0e6a0254d5 100644
--- a/thirdparty/opus/silk/tables_LTP.c
+++ b/thirdparty/opus/silk/tables_LTP.c
@@ -51,6 +51,8 @@ static const opus_uint8 silk_LTP_gain_iCDF_2[32] = {
         24,     20,     16,     12,      9,      5,      2,      0
 };
 
+const opus_int16 silk_LTP_gain_middle_avg_RD_Q14 = 12304;
+
 static const opus_uint8 silk_LTP_gain_BITS_Q5_0[8] = {
         15,    131,    138,    138,    155,    155,    173,    173
 };