optimized imports

1 files changed, 0 insertions, 970 deletions

diff --git a/src/main/jni/opus/src/opus_decoder.c b/src/main/jni/opus/src/opus_decoder.c
deleted file mode 100644
index 919ba521b..000000000
--- a/src/main/jni/opus/src/opus_decoder.c
+++ /dev/null
@@ -1,970 +0,0 @@
-/* Copyright (c) 2010 Xiph.Org Foundation, Skype Limited
-   Written by Jean-Marc Valin and Koen Vos */
-/*
-   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.
-
-   - Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
-   OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#ifndef OPUS_BUILD
-# error "OPUS_BUILD _MUST_ be defined to build Opus. This probably means you need other defines as well, as in a config.h. See the included build files for details."
-#endif
-
-#if defined(__GNUC__) && (__GNUC__ >= 2) && !defined(__OPTIMIZE__)
-# pragma message "You appear to be compiling without optimization, if so opus will be very slow."
-#endif
-
-#include <stdarg.h>
-#include "celt.h"
-#include "opus.h"
-#include "entdec.h"
-#include "modes.h"
-#include "API.h"
-#include "stack_alloc.h"
-#include "float_cast.h"
-#include "opus_private.h"
-#include "os_support.h"
-#include "structs.h"
-#include "define.h"
-#include "mathops.h"
-#include "cpu_support.h"
-
-struct OpusDecoder {
-   int          celt_dec_offset;
-   int          silk_dec_offset;
-   int          channels;
-   opus_int32   Fs;          /** Sampling rate (at the API level) */
-   silk_DecControlStruct DecControl;
-   int          decode_gain;
-
-   /* Everything beyond this point gets cleared on a reset */
-#define OPUS_DECODER_RESET_START stream_channels
-   int          stream_channels;
-
-   int          bandwidth;
-   int          mode;
-   int          prev_mode;
-   int          frame_size;
-   int          prev_redundancy;
-   int          last_packet_duration;
-#ifndef FIXED_POINT
-   opus_val16   softclip_mem[2];
-#endif
-
-   opus_uint32  rangeFinal;
-};
-
-#ifdef FIXED_POINT
-static OPUS_INLINE opus_int16 SAT16(opus_int32 x) {
-   return x > 32767 ? 32767 : x < -32768 ? -32768 : (opus_int16)x;
-}
-#endif
-
-
-int opus_decoder_get_size(int channels)
-{
-   int silkDecSizeBytes, celtDecSizeBytes;
-   int ret;
-   if (channels<1 || channels > 2)
-      return 0;
-   ret = silk_Get_Decoder_Size( &silkDecSizeBytes );
-   if(ret)
-      return 0;
-   silkDecSizeBytes = align(silkDecSizeBytes);
-   celtDecSizeBytes = celt_decoder_get_size(channels);
-   return align(sizeof(OpusDecoder))+silkDecSizeBytes+celtDecSizeBytes;
-}
-
-int opus_decoder_init(OpusDecoder *st, opus_int32 Fs, int channels)
-{
-   void *silk_dec;
-   CELTDecoder *celt_dec;
-   int ret, silkDecSizeBytes;
-
-   if ((Fs!=48000&&Fs!=24000&&Fs!=16000&&Fs!=12000&&Fs!=8000)
-    || (channels!=1&&channels!=2))
-      return OPUS_BAD_ARG;
-
-   OPUS_CLEAR((char*)st, opus_decoder_get_size(channels));
-   /* Initialize SILK encoder */
-   ret = silk_Get_Decoder_Size(&silkDecSizeBytes);
-   if (ret)
-      return OPUS_INTERNAL_ERROR;
-
-   silkDecSizeBytes = align(silkDecSizeBytes);
-   st->silk_dec_offset = align(sizeof(OpusDecoder));
-   st->celt_dec_offset = st->silk_dec_offset+silkDecSizeBytes;
-   silk_dec = (char*)st+st->silk_dec_offset;
-   celt_dec = (CELTDecoder*)((char*)st+st->celt_dec_offset);
-   st->stream_channels = st->channels = channels;
-
-   st->Fs = Fs;
-   st->DecControl.API_sampleRate = st->Fs;
-   st->DecControl.nChannelsAPI      = st->channels;
-
-   /* Reset decoder */
-   ret = silk_InitDecoder( silk_dec );
-   if(ret)return OPUS_INTERNAL_ERROR;
-
-   /* Initialize CELT decoder */
-   ret = celt_decoder_init(celt_dec, Fs, channels);
-   if(ret!=OPUS_OK)return OPUS_INTERNAL_ERROR;
-
-   celt_decoder_ctl(celt_dec, CELT_SET_SIGNALLING(0));
-
-   st->prev_mode = 0;
-   st->frame_size = Fs/400;
-   return OPUS_OK;
-}
-
-OpusDecoder *opus_decoder_create(opus_int32 Fs, int channels, int *error)
-{
-   int ret;
-   OpusDecoder *st;
-   if ((Fs!=48000&&Fs!=24000&&Fs!=16000&&Fs!=12000&&Fs!=8000)
-    || (channels!=1&&channels!=2))
-   {
-      if (error)
-         *error = OPUS_BAD_ARG;
-      return NULL;
-   }
-   st = (OpusDecoder *)opus_alloc(opus_decoder_get_size(channels));
-   if (st == NULL)
-   {
-      if (error)
-         *error = OPUS_ALLOC_FAIL;
-      return NULL;
-   }
-   ret = opus_decoder_init(st, Fs, channels);
-   if (error)
-      *error = ret;
-   if (ret != OPUS_OK)
-   {
-      opus_free(st);
-      st = NULL;
-   }
-   return st;
-}
-
-static void smooth_fade(const opus_val16 *in1, const opus_val16 *in2,
-      opus_val16 *out, int overlap, int channels,
-      const opus_val16 *window, opus_int32 Fs)
-{
-   int i, c;
-   int inc = 48000/Fs;
-   for (c=0;c<channels;c++)
-   {
-      for (i=0;i<overlap;i++)
-      {
-         opus_val16 w = MULT16_16_Q15(window[i*inc], window[i*inc]);
-         out[i*channels+c] = SHR32(MAC16_16(MULT16_16(w,in2[i*channels+c]),
-                                   Q15ONE-w, in1[i*channels+c]), 15);
-      }
-   }
-}
-
-static int opus_packet_get_mode(const unsigned char *data)
-{
-   int mode;
-   if (data[0]&0x80)
-   {
-      mode = MODE_CELT_ONLY;
-   } else if ((data[0]&0x60) == 0x60)
-   {
-      mode = MODE_HYBRID;
-   } else {
-      mode = MODE_SILK_ONLY;
-   }
-   return mode;
-}
-
-static int opus_decode_frame(OpusDecoder *st, const unsigned char *data,
-      opus_int32 len, opus_val16 *pcm, int frame_size, int decode_fec)
-{
-   void *silk_dec;
-   CELTDecoder *celt_dec;
-   int i, silk_ret=0, celt_ret=0;
-   ec_dec dec;
-   opus_int32 silk_frame_size;
-   int pcm_silk_size;
-   VARDECL(opus_int16, pcm_silk);
-   int pcm_transition_silk_size;
-   VARDECL(opus_val16, pcm_transition_silk);
-   int pcm_transition_celt_size;
-   VARDECL(opus_val16, pcm_transition_celt);
-   opus_val16 *pcm_transition;
-   int redundant_audio_size;
-   VARDECL(opus_val16, redundant_audio);
-
-   int audiosize;
-   int mode;
-   int transition=0;
-   int start_band;
-   int redundancy=0;
-   int redundancy_bytes = 0;
-   int celt_to_silk=0;
-   int c;
-   int F2_5, F5, F10, F20;
-   const opus_val16 *window;
-   opus_uint32 redundant_rng = 0;
-   ALLOC_STACK;
-
-   silk_dec = (char*)st+st->silk_dec_offset;
-   celt_dec = (CELTDecoder*)((char*)st+st->celt_dec_offset);
-   F20 = st->Fs/50;
-   F10 = F20>>1;
-   F5 = F10>>1;
-   F2_5 = F5>>1;
-   if (frame_size < F2_5)
-   {
-      RESTORE_STACK;
-      return OPUS_BUFFER_TOO_SMALL;
-   }
-   /* Limit frame_size to avoid excessive stack allocations. */
-   frame_size = IMIN(frame_size, st->Fs/25*3);
-   /* Payloads of 1 (2 including ToC) or 0 trigger the PLC/DTX */
-   if (len<=1)
-   {
-      data = NULL;
-      /* In that case, don't conceal more than what the ToC says */
-      frame_size = IMIN(frame_size, st->frame_size);
-   }
-   if (data != NULL)
-   {
-      audiosize = st->frame_size;
-      mode = st->mode;
-      ec_dec_init(&dec,(unsigned char*)data,len);
-   } else {
-      audiosize = frame_size;
-      mode = st->prev_mode;
-
-      if (mode == 0)
-      {
-         /* If we haven't got any packet yet, all we can do is return zeros */
-         for (i=0;i<audiosize*st->channels;i++)
-            pcm[i] = 0;
-         RESTORE_STACK;
-         return audiosize;
-      }
-
-      /* Avoids trying to run the PLC on sizes other than 2.5 (CELT), 5 (CELT),
-         10, or 20 (e.g. 12.5 or 30 ms). */
-      if (audiosize > F20)
-      {
-         do {
-            int ret = opus_decode_frame(st, NULL, 0, pcm, IMIN(audiosize, F20), 0);
-            if (ret<0)
-            {
-               RESTORE_STACK;
-               return ret;
-            }
-            pcm += ret*st->channels;
-            audiosize -= ret;
-         } while (audiosize > 0);
-         RESTORE_STACK;
-         return frame_size;
-      } else if (audiosize < F20)
-      {
-         if (audiosize > F10)
-            audiosize = F10;
-         else if (mode != MODE_SILK_ONLY && audiosize > F5 && audiosize < F10)
-            audiosize = F5;
-      }
-   }
-
-   pcm_transition_silk_size = ALLOC_NONE;
-   pcm_transition_celt_size = ALLOC_NONE;
-   if (data!=NULL && st->prev_mode > 0 && (
-       (mode == MODE_CELT_ONLY && st->prev_mode != MODE_CELT_ONLY && !st->prev_redundancy)
-    || (mode != MODE_CELT_ONLY && st->prev_mode == MODE_CELT_ONLY) )
-      )
-   {
-      transition = 1;
-      /* Decide where to allocate the stack memory for pcm_transition */
-      if (mode == MODE_CELT_ONLY)
-         pcm_transition_celt_size = F5*st->channels;
-      else
-         pcm_transition_silk_size = F5*st->channels;
-   }
-   ALLOC(pcm_transition_celt, pcm_transition_celt_size, opus_val16);
-   if (transition && mode == MODE_CELT_ONLY)
-   {
-      pcm_transition = pcm_transition_celt;
-      opus_decode_frame(st, NULL, 0, pcm_transition, IMIN(F5, audiosize), 0);
-   }
-   if (audiosize > frame_size)
-   {
-      /*fprintf(stderr, "PCM buffer too small: %d vs %d (mode = %d)\n", audiosize, frame_size, mode);*/
-      RESTORE_STACK;
-      return OPUS_BAD_ARG;
-   } else {
-      frame_size = audiosize;
-   }
-
-   /* Don't allocate any memory when in CELT-only mode */
-   pcm_silk_size = (mode != MODE_CELT_ONLY) ? IMAX(F10, frame_size)*st->channels : ALLOC_NONE;
-   ALLOC(pcm_silk, pcm_silk_size, opus_int16);
-
-   /* SILK processing */
-   if (mode != MODE_CELT_ONLY)
-   {
-      int lost_flag, decoded_samples;
-      opus_int16 *pcm_ptr = pcm_silk;
-
-      if (st->prev_mode==MODE_CELT_ONLY)
-         silk_InitDecoder( silk_dec );
-
-      /* The SILK PLC cannot produce frames of less than 10 ms */
-      st->DecControl.payloadSize_ms = IMAX(10, 1000 * audiosize / st->Fs);
-
-      if (data != NULL)
-      {
-        st->DecControl.nChannelsInternal = st->stream_channels;
-        if( mode == MODE_SILK_ONLY ) {
-           if( st->bandwidth == OPUS_BANDWIDTH_NARROWBAND ) {
-              st->DecControl.internalSampleRate = 8000;
-           } else if( st->bandwidth == OPUS_BANDWIDTH_MEDIUMBAND ) {
-              st->DecControl.internalSampleRate = 12000;
-           } else if( st->bandwidth == OPUS_BANDWIDTH_WIDEBAND ) {
-              st->DecControl.internalSampleRate = 16000;
-           } else {
-              st->DecControl.internalSampleRate = 16000;
-              silk_assert( 0 );
-           }
-        } else {
-           /* Hybrid mode */
-           st->DecControl.internalSampleRate = 16000;
-        }
-     }
-
-     lost_flag = data == NULL ? 1 : 2 * decode_fec;
-     decoded_samples = 0;
-     do {
-        /* Call SILK decoder */
-        int first_frame = decoded_samples == 0;
-        silk_ret = silk_Decode( silk_dec, &st->DecControl,
-                                lost_flag, first_frame, &dec, pcm_ptr, &silk_frame_size );
-        if( silk_ret ) {
-           if (lost_flag) {
-              /* PLC failure should not be fatal */
-              silk_frame_size = frame_size;
-              for (i=0;i<frame_size*st->channels;i++)
-                 pcm_ptr[i] = 0;
-           } else {
-             RESTORE_STACK;
-             return OPUS_INTERNAL_ERROR;
-           }
-        }
-        pcm_ptr += silk_frame_size * st->channels;
-        decoded_samples += silk_frame_size;
-      } while( decoded_samples < frame_size );
-   }
-
-   start_band = 0;
-   if (!decode_fec && mode != MODE_CELT_ONLY && data != NULL
-    && ec_tell(&dec)+17+20*(st->mode == MODE_HYBRID) <= 8*len)
-   {
-      /* Check if we have a redundant 0-8 kHz band */
-      if (mode == MODE_HYBRID)
-         redundancy = ec_dec_bit_logp(&dec, 12);
-      else
-         redundancy = 1;
-      if (redundancy)
-      {
-         celt_to_silk = ec_dec_bit_logp(&dec, 1);
-         /* redundancy_bytes will be at least two, in the non-hybrid
-            case due to the ec_tell() check above */
-         redundancy_bytes = mode==MODE_HYBRID ?
-               (opus_int32)ec_dec_uint(&dec, 256)+2 :
-               len-((ec_tell(&dec)+7)>>3);
-         len -= redundancy_bytes;
-         /* This is a sanity check. It should never happen for a valid
-            packet, so the exact behaviour is not normative. */
-         if (len*8 < ec_tell(&dec))
-         {
-            len = 0;
-            redundancy_bytes = 0;
-            redundancy = 0;
-         }
-         /* Shrink decoder because of raw bits */
-         dec.storage -= redundancy_bytes;
-      }
-   }
-   if (mode != MODE_CELT_ONLY)
-      start_band = 17;
-
-   {
-      int endband=21;
-
-      switch(st->bandwidth)
-      {
-      case OPUS_BANDWIDTH_NARROWBAND:
-         endband = 13;
-         break;
-      case OPUS_BANDWIDTH_MEDIUMBAND:
-      case OPUS_BANDWIDTH_WIDEBAND:
-         endband = 17;
-         break;
-      case OPUS_BANDWIDTH_SUPERWIDEBAND:
-         endband = 19;
-         break;
-      case OPUS_BANDWIDTH_FULLBAND:
-         endband = 21;
-         break;
-      }
-      celt_decoder_ctl(celt_dec, CELT_SET_END_BAND(endband));
-      celt_decoder_ctl(celt_dec, CELT_SET_CHANNELS(st->stream_channels));
-   }
-
-   if (redundancy)
-   {
-      transition = 0;
-      pcm_transition_silk_size=ALLOC_NONE;
-   }
-
-   ALLOC(pcm_transition_silk, pcm_transition_silk_size, opus_val16);
-
-   if (transition && mode != MODE_CELT_ONLY)
-   {
-      pcm_transition = pcm_transition_silk;
-      opus_decode_frame(st, NULL, 0, pcm_transition, IMIN(F5, audiosize), 0);
-   }
-
-   /* Only allocation memory for redundancy if/when needed */
-   redundant_audio_size = redundancy ? F5*st->channels : ALLOC_NONE;
-   ALLOC(redundant_audio, redundant_audio_size, opus_val16);
-
-   /* 5 ms redundant frame for CELT->SILK*/
-   if (redundancy && celt_to_silk)
-   {
-      celt_decoder_ctl(celt_dec, CELT_SET_START_BAND(0));
-      celt_decode_with_ec(celt_dec, data+len, redundancy_bytes,
-                          redundant_audio, F5, NULL);
-      celt_decoder_ctl(celt_dec, OPUS_GET_FINAL_RANGE(&redundant_rng));
-   }
-
-   /* MUST be after PLC */
-   celt_decoder_ctl(celt_dec, CELT_SET_START_BAND(start_band));
-
-   if (mode != MODE_SILK_ONLY)
-   {
-      int celt_frame_size = IMIN(F20, frame_size);
-      /* Make sure to discard any previous CELT state */
-      if (mode != st->prev_mode && st->prev_mode > 0 && !st->prev_redundancy)
-         celt_decoder_ctl(celt_dec, OPUS_RESET_STATE);
-      /* Decode CELT */
-      celt_ret = celt_decode_with_ec(celt_dec, decode_fec ? NULL : data,
-                                     len, pcm, celt_frame_size, &dec);
-   } else {
-      unsigned char silence[2] = {0xFF, 0xFF};
-      for (i=0;i<frame_size*st->channels;i++)
-         pcm[i] = 0;
-      /* For hybrid -> SILK transitions, we let the CELT MDCT
-         do a fade-out by decoding a silence frame */
-      if (st->prev_mode == MODE_HYBRID && !(redundancy && celt_to_silk && st->prev_redundancy) )
-      {
-         celt_decoder_ctl(celt_dec, CELT_SET_START_BAND(0));
-         celt_decode_with_ec(celt_dec, silence, 2, pcm, F2_5, NULL);
-      }
-   }
-
-   if (mode != MODE_CELT_ONLY)
-   {
-#ifdef FIXED_POINT
-      for (i=0;i<frame_size*st->channels;i++)
-         pcm[i] = SAT16(pcm[i] + pcm_silk[i]);
-#else
-      for (i=0;i<frame_size*st->channels;i++)
-         pcm[i] = pcm[i] + (opus_val16)((1.f/32768.f)*pcm_silk[i]);
-#endif
-   }
-
-   {
-      const CELTMode *celt_mode;
-      celt_decoder_ctl(celt_dec, CELT_GET_MODE(&celt_mode));
-      window = celt_mode->window;
-   }
-
-   /* 5 ms redundant frame for SILK->CELT */
-   if (redundancy && !celt_to_silk)
-   {
-      celt_decoder_ctl(celt_dec, OPUS_RESET_STATE);
-      celt_decoder_ctl(celt_dec, CELT_SET_START_BAND(0));
-
-      celt_decode_with_ec(celt_dec, data+len, redundancy_bytes, redundant_audio, F5, NULL);
-      celt_decoder_ctl(celt_dec, OPUS_GET_FINAL_RANGE(&redundant_rng));
-      smooth_fade(pcm+st->channels*(frame_size-F2_5), redundant_audio+st->channels*F2_5,
-                  pcm+st->channels*(frame_size-F2_5), F2_5, st->channels, window, st->Fs);
-   }
-   if (redundancy && celt_to_silk)
-   {
-      for (c=0;c<st->channels;c++)
-      {
-         for (i=0;i<F2_5;i++)
-            pcm[st->channels*i+c] = redundant_audio[st->channels*i+c];
-      }
-      smooth_fade(redundant_audio+st->channels*F2_5, pcm+st->channels*F2_5,
-                  pcm+st->channels*F2_5, F2_5, st->channels, window, st->Fs);
-   }
-   if (transition)
-   {
-      if (audiosize >= F5)
-      {
-         for (i=0;i<st->channels*F2_5;i++)
-            pcm[i] = pcm_transition[i];
-         smooth_fade(pcm_transition+st->channels*F2_5, pcm+st->channels*F2_5,
-                     pcm+st->channels*F2_5, F2_5,
-                     st->channels, window, st->Fs);
-      } else {
-         /* Not enough time to do a clean transition, but we do it anyway
-            This will not preserve amplitude perfectly and may introduce
-            a bit of temporal aliasing, but it shouldn't be too bad and
-            that's pretty much the best we can do. In any case, generating this
-            transition it pretty silly in the first place */
-         smooth_fade(pcm_transition, pcm,
-                     pcm, F2_5,
-                     st->channels, window, st->Fs);
-      }
-   }
-
-   if(st->decode_gain)
-   {
-      opus_val32 gain;
-      gain = celt_exp2(MULT16_16_P15(QCONST16(6.48814081e-4f, 25), st->decode_gain));
-      for (i=0;i<frame_size*st->channels;i++)
-      {
-         opus_val32 x;
-         x = MULT16_32_P16(pcm[i],gain);
-         pcm[i] = SATURATE(x, 32767);
-      }
-   }
-
-   if (len <= 1)
-      st->rangeFinal = 0;
-   else
-      st->rangeFinal = dec.rng ^ redundant_rng;
-
-   st->prev_mode = mode;
-   st->prev_redundancy = redundancy && !celt_to_silk;
-
-   if (celt_ret>=0)
-   {
-      if (OPUS_CHECK_ARRAY(pcm, audiosize*st->channels))
-         OPUS_PRINT_INT(audiosize);
-   }
-
-   RESTORE_STACK;
-   return celt_ret < 0 ? celt_ret : audiosize;
-
-}
-
-int opus_decode_native(OpusDecoder *st, const unsigned char *data,
-      opus_int32 len, opus_val16 *pcm, int frame_size, int decode_fec,
-      int self_delimited, opus_int32 *packet_offset, int soft_clip)
-{
-   int i, nb_samples;
-   int count, offset;
-   unsigned char toc;
-   int packet_frame_size, packet_bandwidth, packet_mode, packet_stream_channels;
-   /* 48 x 2.5 ms = 120 ms */
-   opus_int16 size[48];
-   if (decode_fec<0 || decode_fec>1)
-      return OPUS_BAD_ARG;
-   /* For FEC/PLC, frame_size has to be to have a multiple of 2.5 ms */
-   if ((decode_fec || len==0 || data==NULL) && frame_size%(st->Fs/400)!=0)
-      return OPUS_BAD_ARG;
-   if (len==0 || data==NULL)
-   {
-      int pcm_count=0;
-      do {
-         int ret;
-         ret = opus_decode_frame(st, NULL, 0, pcm+pcm_count*st->channels, frame_size-pcm_count, 0);
-         if (ret<0)
-            return ret;
-         pcm_count += ret;
-      } while (pcm_count < frame_size);
-      celt_assert(pcm_count == frame_size);
-      if (OPUS_CHECK_ARRAY(pcm, pcm_count*st->channels))
-         OPUS_PRINT_INT(pcm_count);
-      st->last_packet_duration = pcm_count;
-      return pcm_count;
-   } else if (len<0)
-      return OPUS_BAD_ARG;
-
-   packet_mode = opus_packet_get_mode(data);
-   packet_bandwidth = opus_packet_get_bandwidth(data);
-   packet_frame_size = opus_packet_get_samples_per_frame(data, st->Fs);
-   packet_stream_channels = opus_packet_get_nb_channels(data);
-
-   count = opus_packet_parse_impl(data, len, self_delimited, &toc, NULL,
-                                  size, &offset, packet_offset);
-   if (count<0)
-      return count;
-
-   data += offset;
-
-   if (decode_fec)
-   {
-      int duration_copy;
-      int ret;
-      /* If no FEC can be present, run the PLC (recursive call) */
-      if (frame_size < packet_frame_size || packet_mode == MODE_CELT_ONLY || st->mode == MODE_CELT_ONLY)
-         return opus_decode_native(st, NULL, 0, pcm, frame_size, 0, 0, NULL, soft_clip);
-      /* Otherwise, run the PLC on everything except the size for which we might have FEC */
-      duration_copy = st->last_packet_duration;
-      if (frame_size-packet_frame_size!=0)
-      {
-         ret = opus_decode_native(st, NULL, 0, pcm, frame_size-packet_frame_size, 0, 0, NULL, soft_clip);
-         if (ret<0)
-         {
-            st->last_packet_duration = duration_copy;
-            return ret;
-         }
-         celt_assert(ret==frame_size-packet_frame_size);
-      }
-      /* Complete with FEC */
-      st->mode = packet_mode;
-      st->bandwidth = packet_bandwidth;
-      st->frame_size = packet_frame_size;
-      st->stream_channels = packet_stream_channels;
-      ret = opus_decode_frame(st, data, size[0], pcm+st->channels*(frame_size-packet_frame_size),
-            packet_frame_size, 1);
-      if (ret<0)
-         return ret;
-      else {
-         if (OPUS_CHECK_ARRAY(pcm, frame_size*st->channels))
-            OPUS_PRINT_INT(frame_size);
-         st->last_packet_duration = frame_size;
-         return frame_size;
-      }
-   }
-
-   if (count*packet_frame_size > frame_size)
-      return OPUS_BUFFER_TOO_SMALL;
-
-   /* Update the state as the last step to avoid updating it on an invalid packet */
-   st->mode = packet_mode;
-   st->bandwidth = packet_bandwidth;
-   st->frame_size = packet_frame_size;
-   st->stream_channels = packet_stream_channels;
-
-   nb_samples=0;
-   for (i=0;i<count;i++)
-   {
-      int ret;
-      ret = opus_decode_frame(st, data, size[i], pcm+nb_samples*st->channels, frame_size-nb_samples, 0);
-      if (ret<0)
-         return ret;
-      celt_assert(ret==packet_frame_size);
-      data += size[i];
-      nb_samples += ret;
-   }
-   st->last_packet_duration = nb_samples;
-   if (OPUS_CHECK_ARRAY(pcm, nb_samples*st->channels))
-      OPUS_PRINT_INT(nb_samples);
-#ifndef FIXED_POINT
-   if (soft_clip)
-      opus_pcm_soft_clip(pcm, nb_samples, st->channels, st->softclip_mem);
-   else
-      st->softclip_mem[0]=st->softclip_mem[1]=0;
-#endif
-   return nb_samples;
-}
-
-#ifdef FIXED_POINT
-
-int opus_decode(OpusDecoder *st, const unsigned char *data,
-      opus_int32 len, opus_val16 *pcm, int frame_size, int decode_fec)
-{
-   if(frame_size<=0)
-      return OPUS_BAD_ARG;
-   return opus_decode_native(st, data, len, pcm, frame_size, decode_fec, 0, NULL, 0);
-}
-
-#ifndef DISABLE_FLOAT_API
-int opus_decode_float(OpusDecoder *st, const unsigned char *data,
-      opus_int32 len, float *pcm, int frame_size, int decode_fec)
-{
-   VARDECL(opus_int16, out);
-   int ret, i;
-   ALLOC_STACK;
-
-   if(frame_size<=0)
-   {
-      RESTORE_STACK;
-      return OPUS_BAD_ARG;
-   }
-   ALLOC(out, frame_size*st->channels, opus_int16);
-
-   ret = opus_decode_native(st, data, len, out, frame_size, decode_fec, 0, NULL, 0);
-   if (ret > 0)
-   {
-      for (i=0;i<ret*st->channels;i++)
-         pcm[i] = (1.f/32768.f)*(out[i]);
-   }
-   RESTORE_STACK;
-   return ret;
-}
-#endif
-
-
-#else
-int opus_decode(OpusDecoder *st, const unsigned char *data,
-      opus_int32 len, opus_int16 *pcm, int frame_size, int decode_fec)
-{
-   VARDECL(float, out);
-   int ret, i;
-   ALLOC_STACK;
-
-   if(frame_size<=0)
-   {
-      RESTORE_STACK;
-      return OPUS_BAD_ARG;
-   }
-
-   ALLOC(out, frame_size*st->channels, float);
-
-   ret = opus_decode_native(st, data, len, out, frame_size, decode_fec, 0, NULL, 1);
-   if (ret > 0)
-   {
-      for (i=0;i<ret*st->channels;i++)
-         pcm[i] = FLOAT2INT16(out[i]);
-   }
-   RESTORE_STACK;
-   return ret;
-}
-
-int opus_decode_float(OpusDecoder *st, const unsigned char *data,
-      opus_int32 len, opus_val16 *pcm, int frame_size, int decode_fec)
-{
-   if(frame_size<=0)
-      return OPUS_BAD_ARG;
-   return opus_decode_native(st, data, len, pcm, frame_size, decode_fec, 0, NULL, 0);
-}
-
-#endif
-
-int opus_decoder_ctl(OpusDecoder *st, int request, ...)
-{
-   int ret = OPUS_OK;
-   va_list ap;
-   void *silk_dec;
-   CELTDecoder *celt_dec;
-
-   silk_dec = (char*)st+st->silk_dec_offset;
-   celt_dec = (CELTDecoder*)((char*)st+st->celt_dec_offset);
-
-
-   va_start(ap, request);
-
-   switch (request)
-   {
-   case OPUS_GET_BANDWIDTH_REQUEST:
-   {
-      opus_int32 *value = va_arg(ap, opus_int32*);
-      if (!value)
-      {
-         goto bad_arg;
-      }
-      *value = st->bandwidth;
-   }
-   break;
-   case OPUS_GET_FINAL_RANGE_REQUEST:
-   {
-      opus_uint32 *value = va_arg(ap, opus_uint32*);
-      if (!value)
-      {
-         goto bad_arg;
-      }
-      *value = st->rangeFinal;
-   }
-   break;
-   case OPUS_RESET_STATE:
-   {
-      OPUS_CLEAR((char*)&st->OPUS_DECODER_RESET_START,
-            sizeof(OpusDecoder)-
-            ((char*)&st->OPUS_DECODER_RESET_START - (char*)st));
-
-      celt_decoder_ctl(celt_dec, OPUS_RESET_STATE);
-      silk_InitDecoder( silk_dec );
-      st->stream_channels = st->channels;
-      st->frame_size = st->Fs/400;
-   }
-   break;
-   case OPUS_GET_SAMPLE_RATE_REQUEST:
-   {
-      opus_int32 *value = va_arg(ap, opus_int32*);
-      if (!value)
-      {
-         goto bad_arg;
-      }
-      *value = st->Fs;
-   }
-   break;
-   case OPUS_GET_PITCH_REQUEST:
-   {
-      opus_int32 *value = va_arg(ap, opus_int32*);
-      if (!value)
-      {
-         goto bad_arg;
-      }
-      if (st->prev_mode == MODE_CELT_ONLY)
-         celt_decoder_ctl(celt_dec, OPUS_GET_PITCH(value));
-      else
-         *value = st->DecControl.prevPitchLag;
-   }
-   break;
-   case OPUS_GET_GAIN_REQUEST:
-   {
-      opus_int32 *value = va_arg(ap, opus_int32*);
-      if (!value)
-      {
-         goto bad_arg;
-      }
-      *value = st->decode_gain;
-   }
-   break;
-   case OPUS_SET_GAIN_REQUEST:
-   {
-       opus_int32 value = va_arg(ap, opus_int32);
-       if (value<-32768 || value>32767)
-       {
-          goto bad_arg;
-       }
-       st->decode_gain = value;
-   }
-   break;
-   case OPUS_GET_LAST_PACKET_DURATION_REQUEST:
-   {
-      opus_uint32 *value = va_arg(ap, opus_uint32*);
-      if (!value)
-      {
-         goto bad_arg;
-      }
-      *value = st->last_packet_duration;
-   }
-   break;
-   default:
-      /*fprintf(stderr, "unknown opus_decoder_ctl() request: %d", request);*/
-      ret = OPUS_UNIMPLEMENTED;
-      break;
-   }
-
-   va_end(ap);
-   return ret;
-bad_arg:
-   va_end(ap);
-   return OPUS_BAD_ARG;
-}
-
-void opus_decoder_destroy(OpusDecoder *st)
-{
-   opus_free(st);
-}
-
-
-int opus_packet_get_bandwidth(const unsigned char *data)
-{
-   int bandwidth;
-   if (data[0]&0x80)
-   {
-      bandwidth = OPUS_BANDWIDTH_MEDIUMBAND + ((data[0]>>5)&0x3);
-      if (bandwidth == OPUS_BANDWIDTH_MEDIUMBAND)
-         bandwidth = OPUS_BANDWIDTH_NARROWBAND;
-   } else if ((data[0]&0x60) == 0x60)
-   {
-      bandwidth = (data[0]&0x10) ? OPUS_BANDWIDTH_FULLBAND :
-                                   OPUS_BANDWIDTH_SUPERWIDEBAND;
-   } else {
-      bandwidth = OPUS_BANDWIDTH_NARROWBAND + ((data[0]>>5)&0x3);
-   }
-   return bandwidth;
-}
-
-int opus_packet_get_samples_per_frame(const unsigned char *data,
-      opus_int32 Fs)
-{
-   int audiosize;
-   if (data[0]&0x80)
-   {
-      audiosize = ((data[0]>>3)&0x3);
-      audiosize = (Fs<<audiosize)/400;
-   } else if ((data[0]&0x60) == 0x60)
-   {
-      audiosize = (data[0]&0x08) ? Fs/50 : Fs/100;
-   } else {
-      audiosize = ((data[0]>>3)&0x3);
-      if (audiosize == 3)
-         audiosize = Fs*60/1000;
-      else
-         audiosize = (Fs<<audiosize)/100;
-   }
-   return audiosize;
-}
-
-int opus_packet_get_nb_channels(const unsigned char *data)
-{
-   return (data[0]&0x4) ? 2 : 1;
-}
-
-int opus_packet_get_nb_frames(const unsigned char packet[], opus_int32 len)
-{
-   int count;
-   if (len<1)
-      return OPUS_BAD_ARG;
-   count = packet[0]&0x3;
-   if (count==0)
-      return 1;
-   else if (count!=3)
-      return 2;
-   else if (len<2)
-      return OPUS_INVALID_PACKET;
-   else
-      return packet[1]&0x3F;
-}
-
-int opus_packet_get_nb_samples(const unsigned char packet[], opus_int32 len,
-      opus_int32 Fs)
-{
-   int samples;
-   int count = opus_packet_get_nb_frames(packet, len);
-
-   if (count<0)
-      return count;
-
-   samples = count*opus_packet_get_samples_per_frame(packet, Fs);
-   /* Can't have more than 120 ms */
-   if (samples*25 > Fs*3)
-      return OPUS_INVALID_PACKET;
-   else
-      return samples;
-}
-
-int opus_decoder_get_nb_samples(const OpusDecoder *dec,
-      const unsigned char packet[], opus_int32 len)
-{
-   return opus_packet_get_nb_samples(packet, len, dec->Fs);
-}