[Opus] Update to v1.2.1

third_party/opus/src/include/opus_multistream.h

 /* Copyright (c) 2011 Xiph.Org Foundation
    Written by Jean-Marc Valin */
 /*
    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions
    are met:
 
    - Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
 
@@ skipping 255 matching lines @@
 
 OPUS_EXPORT OPUS_WARN_UNUSED_RESULT OpusMSEncoder *opus_multistream_surround_encoder_create(
       opus_int32 Fs,
       int channels,
       int mapping_family,
       int *streams,
       int *coupled_streams,
       unsigned char *mapping,
       int application,
       int *error
-) OPUS_ARG_NONNULL(5);
+) OPUS_ARG_NONNULL(4) OPUS_ARG_NONNULL(5) OPUS_ARG_NONNULL(6);
 
 /** Initialize a previously allocated multistream encoder state.
   * The memory pointed to by \a st must be at least the size returned by
   * opus_multistream_encoder_get_size().
   * This is intended for applications which use their own allocator instead of
   * malloc.
   * To reset a previously initialized state, use the #OPUS_RESET_STATE CTL.
   * @see opus_multistream_encoder_create
   * @see opus_multistream_encoder_get_size
   * @param st <tt>OpusMSEncoder*</tt>: Multistream encoder state to initialize.
@@ skipping 48 matching lines @@
 
 OPUS_EXPORT int opus_multistream_surround_encoder_init(
       OpusMSEncoder *st,
       opus_int32 Fs,
       int channels,
       int mapping_family,
       int *streams,
       int *coupled_streams,
       unsigned char *mapping,
       int application
-) OPUS_ARG_NONNULL(1) OPUS_ARG_NONNULL(6);
+) OPUS_ARG_NONNULL(1) OPUS_ARG_NONNULL(5) OPUS_ARG_NONNULL(6) OPUS_ARG_NONNULL(7);
 
 /** Encodes a multistream Opus frame.
   * @param st <tt>OpusMSEncoder*</tt>: Multistream encoder state.
   * @param[in] pcm <tt>const opus_int16*</tt>: The input signal as interleaved
   *                                            samples.
   *                                            This must contain
   *                                            <code>frame_size*channels</code>
   *                                            samples.
   * @param frame_size <tt>int</tt>: Number of samples per channel in the input
   *                                 signal.
@@ skipping 295 matching lines @@
 
 /**@}*/
 
 /**@}*/
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif /* OPUS_MULTISTREAM_H */