Coverage Report

Created: 2025-07-01 06:21

/src/aac/libDRCdec/src/FDK_drcDecLib.cpp
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/* -----------------------------------------------------------------------------
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Software License for The Fraunhofer FDK AAC Codec Library for Android
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© Copyright  1995 - 2019 Fraunhofer-Gesellschaft zur Förderung der angewandten
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Forschung e.V. All rights reserved.
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 1.    INTRODUCTION
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The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
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that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
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scheme for digital audio. This FDK AAC Codec software is intended to be used on
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a wide variety of Android devices.
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AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
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general perceptual audio codecs. AAC-ELD is considered the best-performing
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full-bandwidth communications codec by independent studies and is widely
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deployed. AAC has been standardized by ISO and IEC as part of the MPEG
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specifications.
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Patent licenses for necessary patent claims for the FDK AAC Codec (including
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those of Fraunhofer) may be obtained through Via Licensing
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(www.vialicensing.com) or through the respective patent owners individually for
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the purpose of encoding or decoding bit streams in products that are compliant
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with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
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Android devices already license these patent claims through Via Licensing or
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directly from the patent owners, and therefore FDK AAC Codec software may
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already be covered under those patent licenses when it is used for those
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licensed purposes only.
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Commercially-licensed AAC software libraries, including floating-point versions
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with enhanced sound quality, are also available from Fraunhofer. Users are
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encouraged to check the Fraunhofer website for additional applications
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information and documentation.
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2.    COPYRIGHT LICENSE
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Redistribution and use in source and binary forms, with or without modification,
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are permitted without payment of copyright license fees provided that you
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satisfy the following conditions:
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You must retain the complete text of this software license in redistributions of
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the FDK AAC Codec or your modifications thereto in source code form.
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You must retain the complete text of this software license in the documentation
44
and/or other materials provided with redistributions of the FDK AAC Codec or
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your modifications thereto in binary form. You must make available free of
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charge copies of the complete source code of the FDK AAC Codec and your
47
modifications thereto to recipients of copies in binary form.
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The name of Fraunhofer may not be used to endorse or promote products derived
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from this library without prior written permission.
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You may not charge copyright license fees for anyone to use, copy or distribute
53
the FDK AAC Codec software or your modifications thereto.
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Your modified versions of the FDK AAC Codec must carry prominent notices stating
56
that you changed the software and the date of any change. For modified versions
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of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
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must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
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AAC Codec Library for Android."
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3.    NO PATENT LICENSE
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NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
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limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
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Fraunhofer provides no warranty of patent non-infringement with respect to this
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software.
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You may use this FDK AAC Codec software or modifications thereto only for
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purposes that are authorized by appropriate patent licenses.
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4.    DISCLAIMER
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This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
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holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
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including but not limited to the implied warranties of merchantability and
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fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
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or consequential damages, including but not limited to procurement of substitute
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goods or services; loss of use, data, or profits, or business interruption,
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however caused and on any theory of liability, whether in contract, strict
81
liability, or tort (including negligence), arising in any way out of the use of
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this software, even if advised of the possibility of such damage.
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5.    CONTACT INFORMATION
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Fraunhofer Institute for Integrated Circuits IIS
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Attention: Audio and Multimedia Departments - FDK AAC LL
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Am Wolfsmantel 33
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91058 Erlangen, Germany
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www.iis.fraunhofer.de/amm
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amm-info@iis.fraunhofer.de
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----------------------------------------------------------------------------- */
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/************************* MPEG-D DRC decoder library **************************
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   Author(s):   Bernhard Neugebauer
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   Description: MPEG-D DRC Decoder
100
101
*******************************************************************************/
102
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#include "drcDec_reader.h"
104
#include "drcDec_gainDecoder.h"
105
#include "FDK_drcDecLib.h"
106
107
#include "drcDec_selectionProcess.h"
108
#include "drcDec_tools.h"
109
110
/* Decoder library info */
111
#define DRCDEC_LIB_VL0 2
112
#define DRCDEC_LIB_VL1 1
113
#define DRCDEC_LIB_VL2 0
114
0
#define DRCDEC_LIB_TITLE "MPEG-D DRC Decoder Lib"
115
#ifdef SUPPRESS_BUILD_DATE_INFO
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#define DRCDEC_LIB_BUILD_DATE ""
117
#define DRCDEC_LIB_BUILD_TIME ""
118
#else
119
0
#define DRCDEC_LIB_BUILD_DATE __DATE__
120
0
#define DRCDEC_LIB_BUILD_TIME __TIME__
121
#endif
122
123
typedef enum {
124
  DRC_DEC_NOT_INITIALIZED = 0,
125
  DRC_DEC_INITIALIZED,
126
  DRC_DEC_NEW_GAIN_PAYLOAD,
127
  DRC_DEC_INTERPOLATION_PREPARED
128
} DRC_DEC_STATUS;
129
130
struct s_drc_decoder {
131
  DRC_DEC_CODEC_MODE codecMode;
132
  DRC_DEC_FUNCTIONAL_RANGE functionalRange;
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  DRC_DEC_STATUS status;
134
135
  /* handles of submodules */
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  HANDLE_DRC_GAIN_DECODER hGainDec;
137
  HANDLE_DRC_SELECTION_PROCESS hSelectionProc;
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  int selProcInputDiff;
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140
  /* data structs */
141
  UNI_DRC_CONFIG uniDrcConfig;
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  LOUDNESS_INFO_SET loudnessInfoSet;
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  UNI_DRC_GAIN uniDrcGain;
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  SEL_PROC_OUTPUT selProcOutput;
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} DRC_DECODER;
147
148
0
static int _getGainStatus(HANDLE_UNI_DRC_GAIN hUniDrcGain) {
149
0
  return hUniDrcGain->status;
150
0
}
151
152
static int isResetNeeded(HANDLE_DRC_DECODER hDrcDec,
153
0
                         const SEL_PROC_OUTPUT oldSelProcOutput) {
154
0
  int i, resetNeeded = 0;
155
156
0
  if (hDrcDec->selProcOutput.numSelectedDrcSets !=
157
0
      oldSelProcOutput.numSelectedDrcSets) {
158
0
    resetNeeded = 1;
159
0
  } else {
160
0
    for (i = 0; i < hDrcDec->selProcOutput.numSelectedDrcSets; i++) {
161
0
      if (hDrcDec->selProcOutput.selectedDrcSetIds[i] !=
162
0
          oldSelProcOutput.selectedDrcSetIds[i])
163
0
        resetNeeded = 1;
164
0
      if (hDrcDec->selProcOutput.selectedDownmixIds[i] !=
165
0
          oldSelProcOutput.selectedDownmixIds[i])
166
0
        resetNeeded = 1;
167
0
    }
168
0
  }
169
170
0
  if (hDrcDec->selProcOutput.boost != oldSelProcOutput.boost) resetNeeded = 1;
171
0
  if (hDrcDec->selProcOutput.compress != oldSelProcOutput.compress)
172
0
    resetNeeded = 1;
173
174
  /* Note: Changes in downmix matrix are not caught, as they don't affect the
175
   * DRC gain decoder */
176
177
0
  return resetNeeded;
178
0
}
179
180
0
static void startSelectionProcess(HANDLE_DRC_DECODER hDrcDec) {
181
0
  int uniDrcConfigHasChanged = 0;
182
0
  SEL_PROC_OUTPUT oldSelProcOutput = hDrcDec->selProcOutput;
183
184
0
  if (!hDrcDec->status) return;
185
186
0
  if (hDrcDec->functionalRange & DRC_DEC_SELECTION) {
187
0
    uniDrcConfigHasChanged = hDrcDec->uniDrcConfig.diff;
188
0
    if (hDrcDec->uniDrcConfig.diff || hDrcDec->loudnessInfoSet.diff ||
189
0
        hDrcDec->selProcInputDiff) {
190
      /* in case of an error, signal that selection process was not successful
191
       */
192
0
      hDrcDec->selProcOutput.numSelectedDrcSets = 0;
193
194
0
      drcDec_SelectionProcess_Process(
195
0
          hDrcDec->hSelectionProc, &(hDrcDec->uniDrcConfig),
196
0
          &(hDrcDec->loudnessInfoSet), &(hDrcDec->selProcOutput));
197
198
0
      hDrcDec->selProcInputDiff = 0;
199
0
      hDrcDec->uniDrcConfig.diff = 0;
200
0
      hDrcDec->loudnessInfoSet.diff = 0;
201
0
    }
202
0
  }
203
204
0
  if (hDrcDec->functionalRange & DRC_DEC_GAIN) {
205
0
    if (isResetNeeded(hDrcDec, oldSelProcOutput) || uniDrcConfigHasChanged) {
206
0
      drcDec_GainDecoder_Config(hDrcDec->hGainDec, &(hDrcDec->uniDrcConfig),
207
0
                                hDrcDec->selProcOutput.numSelectedDrcSets,
208
0
                                hDrcDec->selProcOutput.selectedDrcSetIds,
209
0
                                hDrcDec->selProcOutput.selectedDownmixIds);
210
0
    }
211
0
  }
212
0
}
213
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DRC_DEC_ERROR
215
FDK_drcDec_Open(HANDLE_DRC_DECODER* phDrcDec,
216
0
                const DRC_DEC_FUNCTIONAL_RANGE functionalRange) {
217
0
  DRC_ERROR dErr = DE_OK;
218
0
  DRCDEC_SELECTION_PROCESS_RETURN sErr = DRCDEC_SELECTION_PROCESS_NO_ERROR;
219
0
  HANDLE_DRC_DECODER hDrcDec;
220
221
0
  *phDrcDec = (HANDLE_DRC_DECODER)FDKcalloc(1, sizeof(DRC_DECODER));
222
0
  if (!*phDrcDec) return DRC_DEC_OUT_OF_MEMORY;
223
0
  hDrcDec = *phDrcDec;
224
225
0
  hDrcDec->functionalRange = functionalRange;
226
227
0
  hDrcDec->status = DRC_DEC_NOT_INITIALIZED;
228
0
  hDrcDec->codecMode = DRC_DEC_CODEC_MODE_UNDEFINED;
229
230
0
  if (hDrcDec->functionalRange & DRC_DEC_SELECTION) {
231
0
    sErr = drcDec_SelectionProcess_Create(&(hDrcDec->hSelectionProc));
232
0
    if (sErr) return DRC_DEC_OUT_OF_MEMORY;
233
0
    sErr = drcDec_SelectionProcess_Init(hDrcDec->hSelectionProc);
234
0
    if (sErr) return DRC_DEC_NOT_OK;
235
0
    hDrcDec->selProcInputDiff = 1;
236
0
  }
237
238
0
  if (hDrcDec->functionalRange & DRC_DEC_GAIN) {
239
0
    dErr = drcDec_GainDecoder_Open(&(hDrcDec->hGainDec));
240
0
    if (dErr) return DRC_DEC_OUT_OF_MEMORY;
241
0
  }
242
243
0
  return DRC_DEC_OK;
244
0
}
245
246
DRC_DEC_ERROR
247
FDK_drcDec_SetCodecMode(HANDLE_DRC_DECODER hDrcDec,
248
0
                        const DRC_DEC_CODEC_MODE codecMode) {
249
0
  DRC_ERROR dErr = DE_OK;
250
0
  DRCDEC_SELECTION_PROCESS_RETURN sErr = DRCDEC_SELECTION_PROCESS_NO_ERROR;
251
252
0
  if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED;
253
254
0
  if (hDrcDec->codecMode ==
255
0
      DRC_DEC_CODEC_MODE_UNDEFINED) { /* Set codec mode, if it is set for the
256
                                         first time */
257
0
    hDrcDec->codecMode = codecMode;
258
259
0
    if (hDrcDec->functionalRange & DRC_DEC_SELECTION) {
260
0
      sErr = drcDec_SelectionProcess_SetCodecMode(
261
0
          hDrcDec->hSelectionProc, (SEL_PROC_CODEC_MODE)codecMode);
262
0
      if (sErr) return DRC_DEC_NOT_OK;
263
0
      hDrcDec->selProcInputDiff = 1;
264
0
    }
265
266
0
    if (hDrcDec->functionalRange & DRC_DEC_GAIN) {
267
0
      DELAY_MODE delayMode;
268
0
      int timeDomainSupported;
269
0
      SUBBAND_DOMAIN_MODE subbandDomainSupported;
270
271
0
      switch (hDrcDec->codecMode) {
272
0
        case DRC_DEC_MPEG_4_AAC:
273
0
        case DRC_DEC_MPEG_D_USAC:
274
0
        case DRC_DEC_MPEG_H_3DA:
275
0
        default:
276
0
          delayMode = DM_REGULAR_DELAY;
277
0
      }
278
279
0
      switch (hDrcDec->codecMode) {
280
0
        case DRC_DEC_MPEG_4_AAC:
281
0
        case DRC_DEC_MPEG_D_USAC:
282
0
          timeDomainSupported = 1;
283
0
          subbandDomainSupported = SDM_OFF;
284
0
          break;
285
0
        case DRC_DEC_MPEG_H_3DA:
286
0
          timeDomainSupported = 1;
287
0
          subbandDomainSupported = SDM_STFT256;
288
0
          break;
289
290
0
        case DRC_DEC_TEST_TIME_DOMAIN:
291
0
          timeDomainSupported = 1;
292
0
          subbandDomainSupported = SDM_OFF;
293
0
          break;
294
0
        case DRC_DEC_TEST_QMF_DOMAIN:
295
0
          timeDomainSupported = 0;
296
0
          subbandDomainSupported = SDM_QMF64;
297
0
          break;
298
0
        case DRC_DEC_TEST_STFT_DOMAIN:
299
0
          timeDomainSupported = 0;
300
0
          subbandDomainSupported = SDM_STFT256;
301
0
          break;
302
303
0
        default:
304
0
          timeDomainSupported = 0;
305
0
          subbandDomainSupported = SDM_OFF;
306
0
      }
307
308
0
      dErr = drcDec_GainDecoder_SetCodecDependentParameters(
309
0
          hDrcDec->hGainDec, delayMode, timeDomainSupported,
310
0
          subbandDomainSupported);
311
0
      if (dErr) return DRC_DEC_NOT_OK;
312
0
    }
313
0
  }
314
315
  /* Don't allow changing codecMode if it has already been set. */
316
0
  if (hDrcDec->codecMode != codecMode) return DRC_DEC_NOT_OK;
317
318
0
  return DRC_DEC_OK;
319
0
}
320
321
DRC_DEC_ERROR
322
FDK_drcDec_Init(HANDLE_DRC_DECODER hDrcDec, const int frameSize,
323
0
                const int sampleRate, const int baseChannelCount) {
324
0
  DRC_ERROR dErr = DE_OK;
325
0
  DRCDEC_SELECTION_PROCESS_RETURN sErr = DRCDEC_SELECTION_PROCESS_NO_ERROR;
326
327
0
  if (hDrcDec == NULL || frameSize == 0 || sampleRate == 0 ||
328
0
      baseChannelCount == 0)
329
0
    return DRC_DEC_OK; /* return without doing anything */
330
331
0
  if (hDrcDec->functionalRange & DRC_DEC_SELECTION) {
332
0
    sErr = drcDec_SelectionProcess_SetParam(
333
0
        hDrcDec->hSelectionProc, SEL_PROC_BASE_CHANNEL_COUNT,
334
0
        (FIXP_DBL)baseChannelCount, &(hDrcDec->selProcInputDiff));
335
0
    if (sErr) return DRC_DEC_NOT_OK;
336
0
    sErr = drcDec_SelectionProcess_SetParam(
337
0
        hDrcDec->hSelectionProc, SEL_PROC_SAMPLE_RATE, (FIXP_DBL)sampleRate,
338
0
        &(hDrcDec->selProcInputDiff));
339
0
    if (sErr) return DRC_DEC_NOT_OK;
340
0
  }
341
342
0
  if (hDrcDec->functionalRange & DRC_DEC_GAIN) {
343
0
    dErr = drcDec_GainDecoder_SetParam(hDrcDec->hGainDec, GAIN_DEC_FRAME_SIZE,
344
0
                                       frameSize);
345
0
    if (dErr) return DRC_DEC_NOT_OK;
346
0
    dErr = drcDec_GainDecoder_SetParam(hDrcDec->hGainDec, GAIN_DEC_SAMPLE_RATE,
347
0
                                       sampleRate);
348
0
    if (dErr) return DRC_DEC_NOT_OK;
349
0
    dErr = drcDec_GainDecoder_Init(hDrcDec->hGainDec);
350
0
    if (dErr) return DRC_DEC_NOT_OK;
351
0
  }
352
353
0
  hDrcDec->status = DRC_DEC_INITIALIZED;
354
355
0
  startSelectionProcess(hDrcDec);
356
357
0
  return DRC_DEC_OK;
358
0
}
359
360
DRC_DEC_ERROR
361
0
FDK_drcDec_Close(HANDLE_DRC_DECODER* phDrcDec) {
362
0
  HANDLE_DRC_DECODER hDrcDec;
363
364
0
  if (phDrcDec == NULL) {
365
0
    return DRC_DEC_OK;
366
0
  }
367
368
0
  hDrcDec = *phDrcDec;
369
370
0
  if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED;
371
372
0
  if (hDrcDec->functionalRange & DRC_DEC_GAIN) {
373
0
    drcDec_GainDecoder_Close(&(hDrcDec->hGainDec));
374
0
  }
375
376
0
  if (hDrcDec->functionalRange & DRC_DEC_SELECTION) {
377
0
    drcDec_SelectionProcess_Delete(&(hDrcDec->hSelectionProc));
378
0
  }
379
380
0
  FDKfree(*phDrcDec);
381
0
  *phDrcDec = NULL;
382
383
0
  return DRC_DEC_OK;
384
0
}
385
386
DRC_DEC_ERROR
387
FDK_drcDec_SetParam(HANDLE_DRC_DECODER hDrcDec,
388
                    const DRC_DEC_USERPARAM requestType,
389
0
                    const FIXP_DBL requestValue) {
390
0
  DRC_ERROR dErr = DE_OK;
391
0
  DRCDEC_SELECTION_PROCESS_RETURN sErr = DRCDEC_SELECTION_PROCESS_NO_ERROR;
392
0
  int invalidParameter = 0;
393
394
0
  if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED;
395
396
0
  if (hDrcDec->functionalRange & DRC_DEC_GAIN) {
397
0
    switch (requestType) {
398
0
      case DRC_DEC_SAMPLE_RATE:
399
0
        dErr = drcDec_GainDecoder_SetParam(
400
0
            hDrcDec->hGainDec, GAIN_DEC_SAMPLE_RATE, (int)requestValue);
401
0
        if (dErr) return DRC_DEC_PARAM_OUT_OF_RANGE;
402
0
        break;
403
0
      case DRC_DEC_FRAME_SIZE:
404
0
        dErr = drcDec_GainDecoder_SetParam(
405
0
            hDrcDec->hGainDec, GAIN_DEC_FRAME_SIZE, (int)requestValue);
406
0
        if (dErr) return DRC_DEC_PARAM_OUT_OF_RANGE;
407
0
        break;
408
0
      default:
409
0
        invalidParameter |= DRC_DEC_GAIN;
410
0
    }
411
0
  }
412
413
0
  if (hDrcDec->functionalRange & DRC_DEC_SELECTION) {
414
0
    switch (requestType) {
415
0
      case DRC_DEC_BOOST:
416
0
        sErr = drcDec_SelectionProcess_SetParam(hDrcDec->hSelectionProc,
417
0
                                                SEL_PROC_BOOST, requestValue,
418
0
                                                &(hDrcDec->selProcInputDiff));
419
0
        if (sErr) return DRC_DEC_PARAM_OUT_OF_RANGE;
420
0
        break;
421
0
      case DRC_DEC_COMPRESS:
422
0
        sErr = drcDec_SelectionProcess_SetParam(hDrcDec->hSelectionProc,
423
0
                                                SEL_PROC_COMPRESS, requestValue,
424
0
                                                &(hDrcDec->selProcInputDiff));
425
0
        if (sErr) return DRC_DEC_PARAM_OUT_OF_RANGE;
426
0
        break;
427
0
      case DRC_DEC_LOUDNESS_NORMALIZATION_ON:
428
0
        sErr = drcDec_SelectionProcess_SetParam(
429
0
            hDrcDec->hSelectionProc, SEL_PROC_LOUDNESS_NORMALIZATION_ON,
430
0
            requestValue, &(hDrcDec->selProcInputDiff));
431
0
        if (sErr) return DRC_DEC_PARAM_OUT_OF_RANGE;
432
0
        break;
433
0
      case DRC_DEC_TARGET_LOUDNESS:
434
0
        sErr = drcDec_SelectionProcess_SetParam(
435
0
            hDrcDec->hSelectionProc, SEL_PROC_TARGET_LOUDNESS, requestValue,
436
0
            &(hDrcDec->selProcInputDiff));
437
0
        if (sErr) return DRC_DEC_PARAM_OUT_OF_RANGE;
438
0
        break;
439
0
      case DRC_DEC_EFFECT_TYPE:
440
0
        sErr = drcDec_SelectionProcess_SetParam(
441
0
            hDrcDec->hSelectionProc, SEL_PROC_EFFECT_TYPE, requestValue,
442
0
            &(hDrcDec->selProcInputDiff));
443
0
        if (sErr) return DRC_DEC_PARAM_OUT_OF_RANGE;
444
0
        break;
445
0
      case DRC_DEC_DOWNMIX_ID:
446
0
        sErr = drcDec_SelectionProcess_SetParam(
447
0
            hDrcDec->hSelectionProc, SEL_PROC_DOWNMIX_ID, requestValue,
448
0
            &(hDrcDec->selProcInputDiff));
449
0
        if (sErr) return DRC_DEC_PARAM_OUT_OF_RANGE;
450
0
        break;
451
0
      case DRC_DEC_TARGET_CHANNEL_COUNT_REQUESTED:
452
0
        sErr = drcDec_SelectionProcess_SetParam(
453
0
            hDrcDec->hSelectionProc, SEL_PROC_TARGET_CHANNEL_COUNT,
454
0
            requestValue, &(hDrcDec->selProcInputDiff));
455
0
        if (sErr) return DRC_DEC_PARAM_OUT_OF_RANGE;
456
0
        break;
457
0
      case DRC_DEC_BASE_CHANNEL_COUNT:
458
0
        sErr = drcDec_SelectionProcess_SetParam(
459
0
            hDrcDec->hSelectionProc, SEL_PROC_BASE_CHANNEL_COUNT, requestValue,
460
0
            &(hDrcDec->selProcInputDiff));
461
0
        if (sErr) return DRC_DEC_NOT_OK;
462
0
        break;
463
0
      case DRC_DEC_LOUDNESS_MEASUREMENT_METHOD:
464
0
        sErr = drcDec_SelectionProcess_SetParam(
465
0
            hDrcDec->hSelectionProc, SEL_PROC_LOUDNESS_MEASUREMENT_METHOD,
466
0
            requestValue, &(hDrcDec->selProcInputDiff));
467
0
        if (sErr) return DRC_DEC_PARAM_OUT_OF_RANGE;
468
0
        break;
469
0
      case DRC_DEC_ALBUM_MODE:
470
0
        sErr = drcDec_SelectionProcess_SetParam(
471
0
            hDrcDec->hSelectionProc, SEL_PROC_ALBUM_MODE, requestValue,
472
0
            &(hDrcDec->selProcInputDiff));
473
0
        if (sErr) return DRC_DEC_PARAM_OUT_OF_RANGE;
474
0
        break;
475
0
      default:
476
0
        invalidParameter |= DRC_DEC_SELECTION;
477
0
    }
478
0
  }
479
480
0
  if (invalidParameter == hDrcDec->functionalRange)
481
0
    return DRC_DEC_INVALID_PARAM;
482
483
  /* All parameters need a new start of the selection process */
484
0
  startSelectionProcess(hDrcDec);
485
486
0
  return DRC_DEC_OK;
487
0
}
488
489
LONG FDK_drcDec_GetParam(HANDLE_DRC_DECODER hDrcDec,
490
0
                         const DRC_DEC_USERPARAM requestType) {
491
0
  if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED;
492
493
0
  switch (requestType) {
494
0
    case DRC_DEC_BOOST:
495
0
      return (LONG)hDrcDec->selProcOutput.boost;
496
0
    case DRC_DEC_COMPRESS:
497
0
      return (LONG)hDrcDec->selProcOutput.compress;
498
0
    case DRC_DEC_IS_MULTIBAND_DRC_1:
499
0
      return (LONG)bitstreamContainsMultibandDrc(&hDrcDec->uniDrcConfig, 0);
500
0
    case DRC_DEC_IS_MULTIBAND_DRC_2:
501
0
      return (LONG)bitstreamContainsMultibandDrc(&hDrcDec->uniDrcConfig, 0x7F);
502
0
    case DRC_DEC_IS_ACTIVE: {
503
      /* MPEG-D DRC is considered active (and overrides MPEG-4 DRC), if
504
       * uniDrc payload is present (loudnessInfoSet and/or uniDrcConfig)
505
       * at least one of DRC and Loudness Control is switched on */
506
0
      int drcOn = drcDec_SelectionProcess_GetParam(
507
0
          hDrcDec->hSelectionProc, SEL_PROC_DYNAMIC_RANGE_CONTROL_ON);
508
0
      int lnOn = drcDec_SelectionProcess_GetParam(
509
0
          hDrcDec->hSelectionProc, SEL_PROC_LOUDNESS_NORMALIZATION_ON);
510
0
      int uniDrcPayloadPresent =
511
0
          (hDrcDec->loudnessInfoSet.loudnessInfoCount > 0);
512
0
      uniDrcPayloadPresent |=
513
0
          (hDrcDec->loudnessInfoSet.loudnessInfoAlbumCount > 0);
514
0
      uniDrcPayloadPresent |=
515
0
          (hDrcDec->uniDrcConfig.drcInstructionsUniDrcCount > 0);
516
0
      uniDrcPayloadPresent |=
517
0
          (hDrcDec->uniDrcConfig.downmixInstructionsCount > 0);
518
0
      return (LONG)(uniDrcPayloadPresent && (drcOn || lnOn));
519
0
    }
520
0
    case DRC_DEC_TARGET_CHANNEL_COUNT_SELECTED:
521
0
      return (LONG)hDrcDec->selProcOutput.targetChannelCount;
522
0
    case DRC_DEC_OUTPUT_LOUDNESS:
523
0
      return (LONG)hDrcDec->selProcOutput.outputLoudness;
524
0
    default:
525
0
      return 0;
526
0
  }
527
0
}
528
529
DRC_DEC_ERROR
530
FDK_drcDec_SetInterfaceParameters(HANDLE_DRC_DECODER hDrcDec,
531
0
                                  HANDLE_UNI_DRC_INTERFACE hUniDrcInterface) {
532
0
  return DRC_DEC_UNSUPPORTED_FUNCTION;
533
0
}
534
535
DRC_DEC_ERROR
536
FDK_drcDec_SetSelectionProcessMpeghParameters_simple(
537
    HANDLE_DRC_DECODER hDrcDec, const int groupPresetIdRequested,
538
0
    const int numGroupIdsRequested, const int* groupIdsRequested) {
539
0
  return DRC_DEC_UNSUPPORTED_FUNCTION;
540
0
}
541
542
DRC_DEC_ERROR
543
FDK_drcDec_SetDownmixInstructions(HANDLE_DRC_DECODER hDrcDec,
544
                                  const int numDownmixId, const int* downmixId,
545
                                  const int* targetLayout,
546
0
                                  const int* targetChannelCount) {
547
0
  return DRC_DEC_UNSUPPORTED_FUNCTION;
548
0
}
549
550
void FDK_drcDec_SetSelectionProcessOutput(
551
0
    HANDLE_DRC_DECODER hDrcDec, HANDLE_SEL_PROC_OUTPUT hSelProcOutput) {}
552
553
HANDLE_SEL_PROC_OUTPUT
554
0
FDK_drcDec_GetSelectionProcessOutput(HANDLE_DRC_DECODER hDrcDec) {
555
0
  if (hDrcDec == NULL) return NULL;
556
557
0
  return &(hDrcDec->selProcOutput);
558
0
}
559
560
LONG /* FIXP_DBL, e = 7 */
561
FDK_drcDec_GetGroupLoudness(HANDLE_SEL_PROC_OUTPUT hSelProcOutput,
562
0
                            const int groupID, int* groupLoudnessAvailable) {
563
0
  return (LONG)0;
564
0
}
565
566
void FDK_drcDec_SetChannelGains(HANDLE_DRC_DECODER hDrcDec,
567
                                const int numChannels, const int frameSize,
568
                                FIXP_DBL* channelGainDb, FIXP_DBL* audioBuffer,
569
0
                                const int audioBufferChannelOffset) {
570
0
  int err;
571
572
0
  if (hDrcDec == NULL) return;
573
574
0
  err = drcDec_GainDecoder_SetLoudnessNormalizationGainDb(
575
0
      hDrcDec->hGainDec, hDrcDec->selProcOutput.loudnessNormalizationGainDb);
576
0
  if (err) return;
577
578
0
  drcDec_GainDecoder_SetChannelGains(hDrcDec->hGainDec, numChannels, frameSize,
579
0
                                     channelGainDb, audioBufferChannelOffset,
580
0
                                     audioBuffer);
581
0
}
582
583
DRC_DEC_ERROR
584
FDK_drcDec_ReadUniDrcConfig(HANDLE_DRC_DECODER hDrcDec,
585
0
                            HANDLE_FDK_BITSTREAM hBitstream) {
586
0
  DRC_ERROR dErr = DE_OK;
587
588
0
  if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED;
589
590
0
  if (hDrcDec->codecMode == DRC_DEC_MPEG_D_USAC) {
591
0
    dErr = drcDec_readUniDrcConfig(hBitstream, &(hDrcDec->uniDrcConfig));
592
0
  } else
593
0
    return DRC_DEC_NOT_OK;
594
595
0
  if (dErr) {
596
    /* clear config, if parsing error occured */
597
0
    FDKmemclear(&hDrcDec->uniDrcConfig, sizeof(hDrcDec->uniDrcConfig));
598
0
    hDrcDec->uniDrcConfig.diff = 1;
599
0
  }
600
601
0
  startSelectionProcess(hDrcDec);
602
603
0
  return DRC_DEC_OK;
604
0
}
605
606
DRC_DEC_ERROR
607
FDK_drcDec_ReadDownmixInstructions_Box(HANDLE_DRC_DECODER hDrcDec,
608
0
                                       HANDLE_FDK_BITSTREAM hBitstream) {
609
0
  DRC_ERROR dErr = DE_OK;
610
611
0
  if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED;
612
613
0
  return DRC_DEC_NOT_OK;
614
615
0
  if (dErr) {
616
    /* clear config, if parsing error occurred */
617
0
    FDKmemclear(&hDrcDec->uniDrcConfig.downmixInstructions,
618
0
                sizeof(hDrcDec->uniDrcConfig.downmixInstructions));
619
0
    hDrcDec->uniDrcConfig.downmixInstructionsCount = 0;
620
0
    hDrcDec->uniDrcConfig.downmixInstructionsCountV0 = 0;
621
0
    hDrcDec->uniDrcConfig.downmixInstructionsCountV1 = 0;
622
0
    hDrcDec->uniDrcConfig.diff = 1;
623
0
  }
624
625
0
  startSelectionProcess(hDrcDec);
626
627
0
  return DRC_DEC_OK;
628
0
}
629
630
DRC_DEC_ERROR
631
FDK_drcDec_ReadUniDrcInstructions_Box(HANDLE_DRC_DECODER hDrcDec,
632
0
                                      HANDLE_FDK_BITSTREAM hBitstream) {
633
0
  DRC_ERROR dErr = DE_OK;
634
635
0
  if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED;
636
637
0
  return DRC_DEC_NOT_OK;
638
639
0
  if (dErr) {
640
    /* clear config, if parsing error occurred */
641
0
    FDKmemclear(&hDrcDec->uniDrcConfig.drcInstructionsUniDrc,
642
0
                sizeof(hDrcDec->uniDrcConfig.drcInstructionsUniDrc));
643
0
    hDrcDec->uniDrcConfig.drcInstructionsUniDrcCount = 0;
644
0
    hDrcDec->uniDrcConfig.drcInstructionsUniDrcCountV0 = 0;
645
0
    hDrcDec->uniDrcConfig.drcInstructionsUniDrcCountV1 = 0;
646
0
    hDrcDec->uniDrcConfig.diff = 1;
647
0
  }
648
649
0
  startSelectionProcess(hDrcDec);
650
651
0
  return DRC_DEC_OK;
652
0
}
653
654
DRC_DEC_ERROR
655
FDK_drcDec_ReadUniDrcCoefficients_Box(HANDLE_DRC_DECODER hDrcDec,
656
0
                                      HANDLE_FDK_BITSTREAM hBitstream) {
657
0
  DRC_ERROR dErr = DE_OK;
658
659
0
  if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED;
660
661
0
  return DRC_DEC_NOT_OK;
662
663
0
  if (dErr) {
664
    /* clear config, if parsing error occurred */
665
0
    FDKmemclear(&hDrcDec->uniDrcConfig.drcCoefficientsUniDrc,
666
0
                sizeof(hDrcDec->uniDrcConfig.drcCoefficientsUniDrc));
667
0
    hDrcDec->uniDrcConfig.drcCoefficientsUniDrcCount = 0;
668
0
    hDrcDec->uniDrcConfig.drcCoefficientsUniDrcCountV0 = 0;
669
0
    hDrcDec->uniDrcConfig.drcCoefficientsUniDrcCountV1 = 0;
670
0
    hDrcDec->uniDrcConfig.diff = 1;
671
0
  }
672
673
0
  startSelectionProcess(hDrcDec);
674
675
0
  return DRC_DEC_OK;
676
0
}
677
678
DRC_DEC_ERROR
679
FDK_drcDec_ReadLoudnessInfoSet(HANDLE_DRC_DECODER hDrcDec,
680
0
                               HANDLE_FDK_BITSTREAM hBitstream) {
681
0
  DRC_ERROR dErr = DE_OK;
682
683
0
  if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED;
684
685
0
  if (hDrcDec->codecMode == DRC_DEC_MPEG_D_USAC) {
686
0
    dErr = drcDec_readLoudnessInfoSet(hBitstream, &(hDrcDec->loudnessInfoSet));
687
0
  } else
688
0
    return DRC_DEC_NOT_OK;
689
690
0
  if (dErr) {
691
    /* clear config, if parsing error occurred */
692
0
    FDKmemclear(&hDrcDec->loudnessInfoSet, sizeof(hDrcDec->loudnessInfoSet));
693
0
    hDrcDec->loudnessInfoSet.diff = 1;
694
0
  }
695
696
0
  startSelectionProcess(hDrcDec);
697
698
0
  return DRC_DEC_OK;
699
0
}
700
701
DRC_DEC_ERROR
702
FDK_drcDec_ReadLoudnessBox(HANDLE_DRC_DECODER hDrcDec,
703
0
                           HANDLE_FDK_BITSTREAM hBitstream) {
704
0
  DRC_ERROR dErr = DE_OK;
705
706
0
  if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED;
707
708
0
  return DRC_DEC_NOT_OK;
709
710
0
  if (dErr) {
711
    /* clear config, if parsing error occurred */
712
0
    FDKmemclear(&hDrcDec->loudnessInfoSet, sizeof(hDrcDec->loudnessInfoSet));
713
0
    hDrcDec->loudnessInfoSet.diff = 1;
714
0
  }
715
716
0
  startSelectionProcess(hDrcDec);
717
718
0
  return DRC_DEC_OK;
719
0
}
720
721
DRC_DEC_ERROR
722
FDK_drcDec_ReadUniDrcGain(HANDLE_DRC_DECODER hDrcDec,
723
0
                          HANDLE_FDK_BITSTREAM hBitstream) {
724
0
  DRC_ERROR dErr = DE_OK;
725
726
0
  if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED;
727
0
  if (!hDrcDec->status) {
728
0
    return DRC_DEC_OK;
729
0
  }
730
731
0
  dErr = drcDec_readUniDrcGain(
732
0
      hBitstream, &(hDrcDec->uniDrcConfig),
733
0
      drcDec_GainDecoder_GetFrameSize(hDrcDec->hGainDec),
734
0
      drcDec_GainDecoder_GetDeltaTminDefault(hDrcDec->hGainDec),
735
0
      &(hDrcDec->uniDrcGain));
736
0
  if (dErr) return DRC_DEC_NOT_OK;
737
738
0
  if (_getGainStatus(&(hDrcDec->uniDrcGain))) {
739
0
    hDrcDec->status = DRC_DEC_NEW_GAIN_PAYLOAD;
740
0
  }
741
742
0
  return DRC_DEC_OK;
743
0
}
744
745
DRC_DEC_ERROR
746
FDK_drcDec_ReadUniDrc(HANDLE_DRC_DECODER hDrcDec,
747
0
                      HANDLE_FDK_BITSTREAM hBitstream) {
748
0
  DRC_ERROR dErr = DE_OK;
749
750
0
  if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED;
751
0
  if (!hDrcDec->status) return DRC_DEC_NOT_READY;
752
753
0
  dErr = drcDec_readUniDrc(
754
0
      hBitstream, &(hDrcDec->uniDrcConfig), &(hDrcDec->loudnessInfoSet),
755
0
      drcDec_GainDecoder_GetFrameSize(hDrcDec->hGainDec),
756
0
      drcDec_GainDecoder_GetDeltaTminDefault(hDrcDec->hGainDec),
757
0
      &(hDrcDec->uniDrcGain));
758
759
0
  startSelectionProcess(hDrcDec);
760
0
  if (dErr) return DRC_DEC_NOT_OK;
761
762
0
  if (_getGainStatus(&(hDrcDec->uniDrcGain))) {
763
0
    hDrcDec->status = DRC_DEC_NEW_GAIN_PAYLOAD;
764
0
  }
765
766
0
  return DRC_DEC_OK;
767
0
}
768
769
DRC_DEC_ERROR
770
0
FDK_drcDec_Preprocess(HANDLE_DRC_DECODER hDrcDec) {
771
0
  DRC_ERROR dErr = DE_OK;
772
773
0
  if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED;
774
0
  if (!hDrcDec->status) return DRC_DEC_NOT_READY;
775
0
  if (!(hDrcDec->functionalRange & DRC_DEC_GAIN)) return DRC_DEC_NOT_OK;
776
777
0
  if (hDrcDec->status != DRC_DEC_NEW_GAIN_PAYLOAD) {
778
    /* no new gain payload was read, e.g. during concalment or flushing.
779
       Generate DRC gains based on the stored DRC gains of last frames */
780
0
    drcDec_GainDecoder_Conceal(hDrcDec->hGainDec, &(hDrcDec->uniDrcConfig),
781
0
                               &(hDrcDec->uniDrcGain));
782
0
  }
783
784
0
  dErr = drcDec_GainDecoder_Preprocess(
785
0
      hDrcDec->hGainDec, &(hDrcDec->uniDrcGain),
786
0
      hDrcDec->selProcOutput.loudnessNormalizationGainDb,
787
0
      hDrcDec->selProcOutput.boost, hDrcDec->selProcOutput.compress);
788
0
  if (dErr) return DRC_DEC_NOT_OK;
789
0
  hDrcDec->status = DRC_DEC_INTERPOLATION_PREPARED;
790
791
0
  return DRC_DEC_OK;
792
0
}
793
794
DRC_DEC_ERROR
795
FDK_drcDec_ProcessTime(HANDLE_DRC_DECODER hDrcDec, const int delaySamples,
796
                       const DRC_DEC_LOCATION drcLocation,
797
                       const int channelOffset, const int drcChannelOffset,
798
                       const int numChannelsProcessed, FIXP_DBL* realBuffer,
799
0
                       const int timeDataChannelOffset) {
800
0
  DRC_ERROR dErr = DE_OK;
801
802
0
  if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED;
803
0
  if (!(hDrcDec->functionalRange & DRC_DEC_GAIN)) return DRC_DEC_NOT_OK;
804
0
  if (hDrcDec->status != DRC_DEC_INTERPOLATION_PREPARED)
805
0
    return DRC_DEC_NOT_READY;
806
807
0
  dErr = drcDec_GainDecoder_ProcessTimeDomain(
808
0
      hDrcDec->hGainDec, delaySamples, (GAIN_DEC_LOCATION)drcLocation,
809
0
      channelOffset, drcChannelOffset, numChannelsProcessed,
810
0
      timeDataChannelOffset, realBuffer);
811
0
  if (dErr) return DRC_DEC_NOT_OK;
812
813
0
  return DRC_DEC_OK;
814
0
}
815
816
DRC_DEC_ERROR
817
FDK_drcDec_ProcessFreq(HANDLE_DRC_DECODER hDrcDec, const int delaySamples,
818
                       const DRC_DEC_LOCATION drcLocation,
819
                       const int channelOffset, const int drcChannelOffset,
820
                       const int numChannelsProcessed,
821
                       const int processSingleTimeslot, FIXP_DBL** realBuffer,
822
0
                       FIXP_DBL** imagBuffer) {
823
0
  DRC_ERROR dErr = DE_OK;
824
825
0
  if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED;
826
0
  if (!(hDrcDec->functionalRange & DRC_DEC_GAIN)) return DRC_DEC_NOT_OK;
827
0
  if (hDrcDec->status != DRC_DEC_INTERPOLATION_PREPARED)
828
0
    return DRC_DEC_NOT_READY;
829
830
0
  dErr = drcDec_GainDecoder_ProcessSubbandDomain(
831
0
      hDrcDec->hGainDec, delaySamples, (GAIN_DEC_LOCATION)drcLocation,
832
0
      channelOffset, drcChannelOffset, numChannelsProcessed,
833
0
      processSingleTimeslot, realBuffer, imagBuffer);
834
0
  if (dErr) return DRC_DEC_NOT_OK;
835
836
0
  return DRC_DEC_OK;
837
0
}
838
839
DRC_DEC_ERROR
840
FDK_drcDec_ApplyDownmix(HANDLE_DRC_DECODER hDrcDec, int* reverseInChannelMap,
841
                        int* reverseOutChannelMap, FIXP_DBL* realBuffer,
842
0
                        int* pNChannels) {
843
0
  SEL_PROC_OUTPUT* pSelProcOutput = &(hDrcDec->selProcOutput);
844
0
  int baseChCnt = pSelProcOutput->baseChannelCount;
845
0
  int targetChCnt = pSelProcOutput->targetChannelCount;
846
0
  int frameSize, n, ic, oc;
847
0
  FIXP_DBL tmp_out[8];
848
0
  FIXP_DBL* audioChannels[8];
849
850
0
  if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED;
851
0
  if (!(hDrcDec->functionalRange & DRC_DEC_GAIN)) return DRC_DEC_NOT_OK;
852
853
  /* only downmix is performed here, no upmix.
854
     Downmix is only performed if downmix coefficients are provided.
855
     All other cases of downmix and upmix are treated by pcmDmx library. */
856
0
  if (pSelProcOutput->downmixMatrixPresent == 0)
857
0
    return DRC_DEC_OK;                             /* no downmix */
858
0
  if (targetChCnt >= baseChCnt) return DRC_DEC_OK; /* downmix only */
859
860
  /* sanity checks */
861
0
  if (realBuffer == NULL) return DRC_DEC_NOT_OK;
862
0
  if (reverseInChannelMap == NULL) return DRC_DEC_NOT_OK;
863
0
  if (reverseOutChannelMap == NULL) return DRC_DEC_NOT_OK;
864
0
  if (baseChCnt > 8) return DRC_DEC_NOT_OK;
865
0
  if (baseChCnt != *pNChannels) return DRC_DEC_NOT_OK;
866
0
  if (targetChCnt > 8) return DRC_DEC_NOT_OK;
867
868
0
  frameSize = drcDec_GainDecoder_GetFrameSize(hDrcDec->hGainDec);
869
870
0
  for (ic = 0; ic < baseChCnt; ic++) {
871
0
    audioChannels[ic] = &(realBuffer[ic * frameSize]);
872
0
  }
873
874
  /* in-place downmix */
875
0
  for (n = 0; n < frameSize; n++) {
876
0
    for (oc = 0; oc < targetChCnt; oc++) {
877
0
      tmp_out[oc] = (FIXP_DBL)0;
878
0
      for (ic = 0; ic < baseChCnt; ic++) {
879
0
        tmp_out[oc] +=
880
0
            fMultDiv2(audioChannels[ic][n],
881
0
                      pSelProcOutput->downmixMatrix[reverseInChannelMap[ic]]
882
0
                                                   [reverseOutChannelMap[oc]])
883
0
            << 3;
884
0
      }
885
0
    }
886
0
    for (oc = 0; oc < targetChCnt; oc++) {
887
0
      if (oc >= baseChCnt) break;
888
0
      audioChannels[oc][n] = tmp_out[oc];
889
0
    }
890
0
  }
891
892
0
  for (oc = targetChCnt; oc < baseChCnt; oc++) {
893
0
    FDKmemset(audioChannels[oc], 0, frameSize * sizeof(FIXP_DBL));
894
0
  }
895
896
0
  *pNChannels = targetChCnt;
897
898
0
  return DRC_DEC_OK;
899
0
}
900
901
/* Get library info for this module. */
902
DRC_DEC_ERROR
903
0
FDK_drcDec_GetLibInfo(LIB_INFO* info) {
904
0
  int i;
905
906
0
  if (info == NULL) {
907
0
    return DRC_DEC_INVALID_PARAM;
908
0
  }
909
910
  /* Search for next free tab */
911
0
  for (i = 0; i < FDK_MODULE_LAST; i++) {
912
0
    if (info[i].module_id == FDK_NONE) break;
913
0
  }
914
0
  if (i == FDK_MODULE_LAST) {
915
0
    return DRC_DEC_NOT_OK;
916
0
  }
917
918
  /* Add the library info */
919
0
  info[i].module_id = FDK_UNIDRCDEC;
920
0
  info[i].version = LIB_VERSION(DRCDEC_LIB_VL0, DRCDEC_LIB_VL1, DRCDEC_LIB_VL2);
921
0
  LIB_VERSION_STRING(info + i);
922
0
  info[i].build_date = DRCDEC_LIB_BUILD_DATE;
923
0
  info[i].build_time = DRCDEC_LIB_BUILD_TIME;
924
0
  info[i].title = DRCDEC_LIB_TITLE;
925
926
0
  return DRC_DEC_OK;
927
0
}