Adding upstream version 125.0.1.upstream/125.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 481 insertions, 14 deletions

diff --git a/media/libopus/src/opus_decoder.c b/media/libopus/src/opus_decoder.c
index 6520e748ea..b57c809434 100644
--- a/media/libopus/src/opus_decoder.c
+++ b/media/libopus/src/opus_decoder.c
@@ -52,6 +52,15 @@
 #include "mathops.h"
 #include "cpu_support.h"
 
+#ifdef ENABLE_DEEP_PLC
+#include "dred_rdovae_dec_data.h"
+#include "dred_rdovae_dec.h"
+#endif
+
+#ifdef ENABLE_OSCE
+#include "osce.h"
+#endif
+
 struct OpusDecoder {
    int          celt_dec_offset;
    int          silk_dec_offset;
@@ -59,7 +68,11 @@ struct OpusDecoder {
    opus_int32   Fs;          /** Sampling rate (at the API level) */
    silk_DecControlStruct DecControl;
    int          decode_gain;
+   int          complexity;
    int          arch;
+#ifdef ENABLE_DEEP_PLC
+    LPCNetPLCState lpcnet;
+#endif
 
    /* Everything beyond this point gets cleared on a reset */
 #define OPUS_DECODER_RESET_START stream_channels
@@ -135,6 +148,7 @@ int opus_decoder_init(OpusDecoder *st, opus_int32 Fs, int channels)
    silk_dec = (char*)st+st->silk_dec_offset;
    celt_dec = (CELTDecoder*)((char*)st+st->celt_dec_offset);
    st->stream_channels = st->channels = channels;
+   st->complexity = 0;
 
    st->Fs = Fs;
    st->DecControl.API_sampleRate = st->Fs;
@@ -152,6 +166,9 @@ int opus_decoder_init(OpusDecoder *st, opus_int32 Fs, int channels)
 
    st->prev_mode = 0;
    st->frame_size = Fs/400;
+#ifdef ENABLE_DEEP_PLC
+    lpcnet_plc_init( &st->lpcnet);
+#endif
    st->arch = opus_select_arch();
    return OPUS_OK;
 }
@@ -370,7 +387,7 @@ static int opus_decode_frame(OpusDecoder *st, const unsigned char *data,
          pcm_ptr = pcm_silk;
 
       if (st->prev_mode==MODE_CELT_ONLY)
-         silk_InitDecoder( silk_dec );
+         silk_ResetDecoder( silk_dec );
 
       /* The SILK PLC cannot produce frames of less than 10 ms */
       st->DecControl.payloadSize_ms = IMAX(10, 1000 * audiosize / st->Fs);
@@ -394,14 +411,28 @@ static int opus_decode_frame(OpusDecoder *st, const unsigned char *data,
            st->DecControl.internalSampleRate = 16000;
         }
      }
+     st->DecControl.enable_deep_plc = st->complexity >= 5;
+#ifdef ENABLE_OSCE
+     st->DecControl.osce_method = OSCE_METHOD_NONE;
+#ifndef DISABLE_LACE
+     if (st->complexity >= 6) {st->DecControl.osce_method = OSCE_METHOD_LACE;}
+#endif
+#ifndef DISABLE_NOLACE
+     if (st->complexity >= 7) {st->DecControl.osce_method = OSCE_METHOD_NOLACE;}
+#endif
+#endif
 
-     lost_flag = data == NULL ? 1 : 2 * decode_fec;
+     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, st->arch );
+                                lost_flag, first_frame, &dec, pcm_ptr, &silk_frame_size,
+#ifdef ENABLE_DEEP_PLC
+                                &st->lpcnet,
+#endif
+                                st->arch );
         if( silk_ret ) {
            if (lost_flag) {
               /* PLC failure should not be fatal */
@@ -521,8 +552,12 @@ static int opus_decode_frame(OpusDecoder *st, const unsigned char *data,
       if (mode != st->prev_mode && st->prev_mode > 0 && !st->prev_redundancy)
          MUST_SUCCEED(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, celt_accum);
+      celt_ret = celt_decode_with_ec_dred(celt_dec, decode_fec ? NULL : data,
+                                     len, pcm, celt_frame_size, &dec, celt_accum
+#ifdef ENABLE_DEEP_PLC
+                                     , &st->lpcnet
+#endif
+                                     );
    } else {
       unsigned char silence[2] = {0xFF, 0xFF};
       if (!celt_accum)
@@ -634,7 +669,7 @@ static int opus_decode_frame(OpusDecoder *st, const unsigned char *data,
 
 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 self_delimited, opus_int32 *packet_offset, int soft_clip, const OpusDRED *dred, opus_int32 dred_offset)
 {
    int i, nb_samples;
    int count, offset;
@@ -648,6 +683,35 @@ int opus_decode_native(OpusDecoder *st, const unsigned char *data,
    /* 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;
+#ifdef ENABLE_DRED
+   if (dred != NULL && dred->process_stage == 2) {
+      int F10;
+      int features_per_frame;
+      int needed_feature_frames;
+      int init_frames;
+      lpcnet_plc_fec_clear(&st->lpcnet);
+      F10 = st->Fs/100;
+      /* if blend==0, the last PLC call was "update" and we need to feed two extra 10-ms frames. */
+      init_frames = (st->lpcnet.blend == 0) ? 2 : 0;
+      features_per_frame = IMAX(1, frame_size/F10);
+      needed_feature_frames = init_frames + features_per_frame;
+      lpcnet_plc_fec_clear(&st->lpcnet);
+      for (i=0;i<needed_feature_frames;i++) {
+         int feature_offset;
+         /* We floor instead of rounding because 5-ms overlap compensates for the missing 0.5 rounding offset. */
+         feature_offset = init_frames - i - 2 + (int)floor(((float)dred_offset + dred->dred_offset*F10/4)/F10);
+         if (feature_offset <= 4*dred->nb_latents-1 && feature_offset >= 0) {
+           lpcnet_plc_fec_add(&st->lpcnet, dred->fec_features+feature_offset*DRED_NUM_FEATURES);
+         } else {
+           if (feature_offset >= 0) lpcnet_plc_fec_add(&st->lpcnet, NULL);
+         }
+
+      }
+   }
+#else
+   (void)dred;
+   (void)dred_offset;
+#endif
    if (len==0 || data==NULL)
    {
       int pcm_count=0;
@@ -672,7 +736,7 @@ int opus_decode_native(OpusDecoder *st, const unsigned char *data,
    packet_stream_channels = opus_packet_get_nb_channels(data);
 
    count = opus_packet_parse_impl(data, len, self_delimited, &toc, NULL,
-                                  size, &offset, packet_offset);
+                                  size, &offset, packet_offset, NULL, NULL);
    if (count<0)
       return count;
 
@@ -684,12 +748,12 @@ int opus_decode_native(OpusDecoder *st, const unsigned char *data,
       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);
+         return opus_decode_native(st, NULL, 0, pcm, frame_size, 0, 0, NULL, soft_clip, NULL, 0);
       /* 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);
+         ret = opus_decode_native(st, NULL, 0, pcm, frame_size-packet_frame_size, 0, 0, NULL, soft_clip, NULL, 0);
          if (ret<0)
          {
             st->last_packet_duration = duration_copy;
@@ -753,7 +817,7 @@ int opus_decode(OpusDecoder *st, const unsigned char *data,
 {
    if(frame_size<=0)
       return OPUS_BAD_ARG;
-   return opus_decode_native(st, data, len, pcm, frame_size, decode_fec, 0, NULL, 0);
+   return opus_decode_native(st, data, len, pcm, frame_size, decode_fec, 0, NULL, 0, NULL, 0);
 }
 
 #ifndef DISABLE_FLOAT_API
@@ -781,7 +845,7 @@ int opus_decode_float(OpusDecoder *st, const unsigned char *data,
    celt_assert(st->channels == 1 || st->channels == 2);
    ALLOC(out, frame_size*st->channels, opus_int16);
 
-   ret = opus_decode_native(st, data, len, out, frame_size, decode_fec, 0, NULL, 0);
+   ret = opus_decode_native(st, data, len, out, frame_size, decode_fec, 0, NULL, 0, NULL, 0);
    if (ret > 0)
    {
       for (i=0;i<ret*st->channels;i++)
@@ -819,7 +883,7 @@ int opus_decode(OpusDecoder *st, const unsigned char *data,
    celt_assert(st->channels == 1 || st->channels == 2);
    ALLOC(out, frame_size*st->channels, float);
 
-   ret = opus_decode_native(st, data, len, out, frame_size, decode_fec, 0, NULL, 1);
+   ret = opus_decode_native(st, data, len, out, frame_size, decode_fec, 0, NULL, 1, NULL, 0);
    if (ret > 0)
    {
       for (i=0;i<ret*st->channels;i++)
@@ -834,7 +898,7 @@ int opus_decode_float(OpusDecoder *st, const unsigned char *data,
 {
    if(frame_size<=0)
       return OPUS_BAD_ARG;
-   return opus_decode_native(st, data, len, pcm, frame_size, decode_fec, 0, NULL, 0);
+   return opus_decode_native(st, data, len, pcm, frame_size, decode_fec, 0, NULL, 0, NULL, 0);
 }
 
 #endif
@@ -864,6 +928,27 @@ int opus_decoder_ctl(OpusDecoder *st, int request, ...)
       *value = st->bandwidth;
    }
    break;
+   case OPUS_SET_COMPLEXITY_REQUEST:
+   {
+       opus_int32 value = va_arg(ap, opus_int32);
+       if(value<0 || value>10)
+       {
+          goto bad_arg;
+       }
+       st->complexity = value;
+       celt_decoder_ctl(celt_dec, OPUS_SET_COMPLEXITY(value));
+   }
+   break;
+   case OPUS_GET_COMPLEXITY_REQUEST:
+   {
+       opus_int32 *value = va_arg(ap, opus_int32*);
+       if (!value)
+       {
+          goto bad_arg;
+       }
+       *value = st->complexity;
+   }
+   break;
    case OPUS_GET_FINAL_RANGE_REQUEST:
    {
       opus_uint32 *value = va_arg(ap, opus_uint32*);
@@ -881,9 +966,12 @@ int opus_decoder_ctl(OpusDecoder *st, int request, ...)
             ((char*)&st->OPUS_DECODER_RESET_START - (char*)st));
 
       celt_decoder_ctl(celt_dec, OPUS_RESET_STATE);
-      silk_InitDecoder( silk_dec );
+      silk_ResetDecoder( silk_dec );
       st->stream_channels = st->channels;
       st->frame_size = st->Fs/400;
+#ifdef ENABLE_DEEP_PLC
+      lpcnet_plc_reset( &st->lpcnet );
+#endif
    }
    break;
    case OPUS_GET_SAMPLE_RATE_REQUEST:
@@ -959,6 +1047,20 @@ int opus_decoder_ctl(OpusDecoder *st, int request, ...)
        ret = celt_decoder_ctl(celt_dec, OPUS_GET_PHASE_INVERSION_DISABLED(value));
    }
    break;
+#ifdef USE_WEIGHTS_FILE
+   case OPUS_SET_DNN_BLOB_REQUEST:
+   {
+       const unsigned char *data = va_arg(ap, const unsigned char *);
+       opus_int32 len = va_arg(ap, opus_int32);
+       if(len<0 || data == NULL)
+       {
+          goto bad_arg;
+       }
+       ret = lpcnet_plc_load_model(&st->lpcnet, data, len);
+       ret = silk_LoadOSCEModels(silk_dec, data, len) || ret;
+   }
+   break;
+#endif
    default:
       /*fprintf(stderr, "unknown opus_decoder_ctl() request: %d", request);*/
       ret = OPUS_UNIMPLEMENTED;
@@ -1034,8 +1136,373 @@ int opus_packet_get_nb_samples(const unsigned char packet[], opus_int32 len,
       return samples;
 }
 
+int opus_packet_has_lbrr(const unsigned char packet[], opus_int32 len)
+{
+   int ret;
+   const unsigned char *frames[48];
+   opus_int16 size[48];
+   int packet_mode, packet_frame_size, packet_stream_channels;
+   int nb_frames=1;
+   int lbrr;
+
+   packet_mode = opus_packet_get_mode(packet);
+   if (packet_mode == MODE_CELT_ONLY)
+      return 0;
+   packet_frame_size = opus_packet_get_samples_per_frame(packet, 48000);
+   if (packet_frame_size > 960)
+      nb_frames = packet_frame_size/960;
+   packet_stream_channels = opus_packet_get_nb_channels(packet);
+   ret = opus_packet_parse(packet, len, NULL, frames, size, NULL);
+   if (ret <= 0)
+      return ret;
+   lbrr = (frames[0][0] >> (7-nb_frames)) & 0x1;
+   if (packet_stream_channels == 2)
+      lbrr = lbrr || ((frames[0][0] >> (6-2*nb_frames)) & 0x1);
+   return lbrr;
+}
+
 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);
 }
+
+struct OpusDREDDecoder {
+#ifdef ENABLE_DRED
+   RDOVAEDec model;
+#endif
+   int loaded;
+   int arch;
+   opus_uint32 magic;
+};
+
+#if defined(ENABLE_DRED) && (defined(ENABLE_HARDENING) || defined(ENABLE_ASSERTIONS))
+static void validate_dred_decoder(OpusDREDDecoder *st)
+{
+   celt_assert(st->magic == 0xD8EDDEC0);
+#ifdef OPUS_ARCHMASK
+   celt_assert(st->arch >= 0);
+   celt_assert(st->arch <= OPUS_ARCHMASK);
+#endif
+}
+#define VALIDATE_DRED_DECODER(st) validate_dred_decoder(st)
+#else
+#define VALIDATE_DRED_DECODER(st)
+#endif
+
+
+int opus_dred_decoder_get_size(void)
+{
+  return sizeof(OpusDREDDecoder);
+}
+
+#ifdef ENABLE_DRED
+int dred_decoder_load_model(OpusDREDDecoder *dec, const unsigned char *data, int len)
+{
+    WeightArray *list;
+    int ret;
+    parse_weights(&list, data, len);
+    ret = init_rdovaedec(&dec->model, list);
+    opus_free(list);
+    if (ret == 0) dec->loaded = 1;
+    return (ret == 0) ? OPUS_OK : OPUS_BAD_ARG;
+}
+#endif
+
+int opus_dred_decoder_init(OpusDREDDecoder *dec)
+{
+   int ret = 0;
+   dec->loaded = 0;
+#if defined(ENABLE_DRED) && !defined(USE_WEIGHTS_FILE)
+   ret = init_rdovaedec(&dec->model, rdovaedec_arrays);
+   if (ret == 0) dec->loaded = 1;
+#endif
+   dec->arch = opus_select_arch();
+   /* To make sure nobody forgets to init, use a magic number. */
+   dec->magic = 0xD8EDDEC0;
+   return (ret == 0) ? OPUS_OK : OPUS_UNIMPLEMENTED;
+}
+
+OpusDREDDecoder *opus_dred_decoder_create(int *error)
+{
+   int ret;
+   OpusDREDDecoder *dec;
+   dec = (OpusDREDDecoder *)opus_alloc(opus_dred_decoder_get_size());
+   if (dec == NULL)
+   {
+      if (error)
+         *error = OPUS_ALLOC_FAIL;
+      return NULL;
+   }
+   ret = opus_dred_decoder_init(dec);
+   if (error)
+      *error = ret;
+   if (ret != OPUS_OK)
+   {
+      opus_free(dec);
+      dec = NULL;
+   }
+   return dec;
+}
+
+void opus_dred_decoder_destroy(OpusDREDDecoder *dec)
+{
+   if (dec) dec->magic = 0xDE57801D;
+   opus_free(dec);
+}
+
+int opus_dred_decoder_ctl(OpusDREDDecoder *dred_dec, int request, ...)
+{
+#ifdef ENABLE_DRED
+   int ret = OPUS_OK;
+   va_list ap;
+
+   va_start(ap, request);
+   (void)dred_dec;
+   switch (request)
+   {
+# ifdef USE_WEIGHTS_FILE
+   case OPUS_SET_DNN_BLOB_REQUEST:
+   {
+      const unsigned char *data = va_arg(ap, const unsigned char *);
+      opus_int32 len = va_arg(ap, opus_int32);
+      if(len<0 || data == NULL)
+      {
+         goto bad_arg;
+      }
+      return dred_decoder_load_model(dred_dec, data, len);
+   }
+   break;
+# endif
+   default:
+     /*fprintf(stderr, "unknown opus_decoder_ctl() request: %d", request);*/
+     ret = OPUS_UNIMPLEMENTED;
+     break;
+  }
+  va_end(ap);
+  return ret;
+# ifdef USE_WEIGHTS_FILE
+bad_arg:
+  va_end(ap);
+  return OPUS_BAD_ARG;
+# endif
+#else
+  (void)dred_dec;
+  (void)request;
+  return OPUS_UNIMPLEMENTED;
+#endif
+}
+
+#ifdef ENABLE_DRED
+static int dred_find_payload(const unsigned char *data, opus_int32 len, const unsigned char **payload, int *dred_frame_offset)
+{
+   const unsigned char *data0;
+   int len0;
+   int frame = 0;
+   int ret;
+   const unsigned char *frames[48];
+   opus_int16 size[48];
+   int frame_size;
+
+   *payload = NULL;
+   /* Get the padding section of the packet. */
+   ret = opus_packet_parse_impl(data, len, 0, NULL, frames, size, NULL, NULL, &data0, &len0);
+   if (ret < 0)
+      return ret;
+   frame_size = opus_packet_get_samples_per_frame(data, 48000);
+   data = data0;
+   len = len0;
+   /* Scan extensions in order until we find the earliest frame with DRED data. */
+   while (len > 0)
+   {
+      opus_int32 header_size;
+      int id, L;
+      len0 = len;
+      data0 = data;
+      id = *data0 >> 1;
+      L = *data0 & 0x1;
+      len = skip_extension(&data, len, &header_size);
+      if (len < 0)
+         break;
+      if (id == 1)
+      {
+         if (L==0)
+         {
+            frame++;
+         } else {
+            frame += data0[1];
+         }
+      } else if (id == DRED_EXTENSION_ID)
+      {
+         const unsigned char *curr_payload;
+         opus_int32 curr_payload_len;
+         curr_payload = data0+header_size;
+         curr_payload_len = (data-data0)-header_size;
+         /* DRED position in the packet, in units of 2.5 ms like for the signaled DRED offset. */
+         *dred_frame_offset = frame*frame_size/120;
+#ifdef DRED_EXPERIMENTAL_VERSION
+         /* Check that temporary extension type and version match.
+            This check will be removed once extension is finalized. */
+         if (curr_payload_len > DRED_EXPERIMENTAL_BYTES && curr_payload[0] == 'D' && curr_payload[1] == DRED_EXPERIMENTAL_VERSION) {
+            *payload = curr_payload+2;
+            return curr_payload_len-2;
+         }
+#else
+         if (curr_payload_len > 0) {
+            *payload = curr_payload;
+            return curr_payload_len;
+         }
+#endif
+      }
+   }
+   return 0;
+}
+#endif
+
+int opus_dred_get_size(void)
+{
+#ifdef ENABLE_DRED
+  return sizeof(OpusDRED);
+#else
+  return 0;
+#endif
+}
+
+OpusDRED *opus_dred_alloc(int *error)
+{
+#ifdef ENABLE_DRED
+  OpusDRED *dec;
+  dec = (OpusDRED *)opus_alloc(opus_dred_get_size());
+  if (dec == NULL)
+  {
+    if (error)
+      *error = OPUS_ALLOC_FAIL;
+    return NULL;
+  }
+  return dec;
+#else
+  if (error)
+    *error = OPUS_UNIMPLEMENTED;
+  return NULL;
+#endif
+}
+
+void opus_dred_free(OpusDRED *dec)
+{
+#ifdef ENABLE_DRED
+  opus_free(dec);
+#else
+  (void)dec;
+#endif
+}
+
+int opus_dred_parse(OpusDREDDecoder *dred_dec, OpusDRED *dred, const unsigned char *data, opus_int32 len, opus_int32 max_dred_samples, opus_int32 sampling_rate, int *dred_end, int defer_processing)
+{
+#ifdef ENABLE_DRED
+   const unsigned char *payload;
+   opus_int32 payload_len;
+   int dred_frame_offset=0;
+   VALIDATE_DRED_DECODER(dred_dec);
+   if (!dred_dec->loaded) return OPUS_UNIMPLEMENTED;
+   dred->process_stage = -1;
+   payload_len = dred_find_payload(data, len, &payload, &dred_frame_offset);
+   if (payload_len < 0)
+      return payload_len;
+   if (payload != NULL)
+   {
+      int offset;
+      int min_feature_frames;
+      offset = 100*max_dred_samples/sampling_rate;
+      min_feature_frames = IMIN(2 + offset, 2*DRED_NUM_REDUNDANCY_FRAMES);
+      dred_ec_decode(dred, payload, payload_len, min_feature_frames, dred_frame_offset);
+      if (!defer_processing)
+         opus_dred_process(dred_dec, dred, dred);
+      if (dred_end) *dred_end = IMAX(0, -dred->dred_offset*sampling_rate/400);
+      return IMAX(0, dred->nb_latents*sampling_rate/25 - dred->dred_offset* sampling_rate/400);
+   }
+   if (dred_end) *dred_end = 0;
+   return 0;
+#else
+   (void)dred_dec;
+   (void)dred;
+   (void)data;
+   (void)len;
+   (void)max_dred_samples;
+   (void)sampling_rate;
+   (void)defer_processing;
+   (void)dred_end;
+   return OPUS_UNIMPLEMENTED;
+#endif
+}
+
+int opus_dred_process(OpusDREDDecoder *dred_dec, const OpusDRED *src, OpusDRED *dst)
+{
+#ifdef ENABLE_DRED
+   if (dred_dec == NULL || src == NULL || dst == NULL || (src->process_stage != 1 && src->process_stage != 2))
+      return OPUS_BAD_ARG;
+   VALIDATE_DRED_DECODER(dred_dec);
+   if (!dred_dec->loaded) return OPUS_UNIMPLEMENTED;
+   if (src != dst)
+      OPUS_COPY(dst, src, 1);
+   if (dst->process_stage == 2)
+      return OPUS_OK;
+   DRED_rdovae_decode_all(&dred_dec->model, dst->fec_features, dst->state, dst->latents, dst->nb_latents, dred_dec->arch);
+   dst->process_stage = 2;
+   return OPUS_OK;
+#else
+   (void)dred_dec;
+   (void)src;
+   (void)dst;
+   return OPUS_UNIMPLEMENTED;
+#endif
+}
+
+int opus_decoder_dred_decode(OpusDecoder *st, const OpusDRED *dred, opus_int32 dred_offset, opus_int16 *pcm, opus_int32 frame_size)
+{
+#ifdef ENABLE_DRED
+   VARDECL(float, out);
+   int ret, i;
+   ALLOC_STACK;
+
+   if(frame_size<=0)
+   {
+      RESTORE_STACK;
+      return OPUS_BAD_ARG;
+   }
+
+   celt_assert(st->channels == 1 || st->channels == 2);
+   ALLOC(out, frame_size*st->channels, float);
+
+   ret = opus_decode_native(st, NULL, 0, out, frame_size, 0, 0, NULL, 1, dred, dred_offset);
+   if (ret > 0)
+   {
+      for (i=0;i<ret*st->channels;i++)
+         pcm[i] = FLOAT2INT16(out[i]);
+   }
+   RESTORE_STACK;
+   return ret;
+#else
+   (void)st;
+   (void)dred;
+   (void)dred_offset;
+   (void)pcm;
+   (void)frame_size;
+   return OPUS_UNIMPLEMENTED;
+#endif
+}
+
+int opus_decoder_dred_decode_float(OpusDecoder *st, const OpusDRED *dred, opus_int32 dred_offset, float *pcm, opus_int32 frame_size)
+{
+#ifdef ENABLE_DRED
+   if(frame_size<=0)
+      return OPUS_BAD_ARG;
+   return opus_decode_native(st, NULL, 0, pcm, frame_size, 0, 0, NULL, 0, dred, dred_offset);
+#else
+   (void)st;
+   (void)dred;
+   (void)dred_offset;
+   (void)pcm;
+   (void)frame_size;
+   return OPUS_UNIMPLEMENTED;
+#endif
+}