opus_defines.h 34 KB

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  1. /* Copyright (c) 2010-2011 Xiph.Org Foundation, Skype Limited
  2. Written by Jean-Marc Valin and Koen Vos */
  3. /*
  4. Redistribution and use in source and binary forms, with or without
  5. modification, are permitted provided that the following conditions
  6. are met:
  7. - Redistributions of source code must retain the above copyright
  8. notice, this list of conditions and the following disclaimer.
  9. - Redistributions in binary form must reproduce the above copyright
  10. notice, this list of conditions and the following disclaimer in the
  11. documentation and/or other materials provided with the distribution.
  12. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  13. ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  14. LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  15. A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  16. OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  17. EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  18. PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  19. PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  20. LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  21. NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  22. SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  23. */
  24. /**
  25. * @file opus_defines.h
  26. * @brief Opus reference implementation constants
  27. */
  28. #ifndef OPUS_DEFINES_H
  29. #define OPUS_DEFINES_H
  30. #include "opus_types.h"
  31. #ifdef __cplusplus
  32. extern "C" {
  33. #endif
  34. /** @defgroup opus_errorcodes Error codes
  35. * @{
  36. */
  37. /** No error @hideinitializer*/
  38. #define OPUS_OK 0
  39. /** One or more invalid/out of range arguments @hideinitializer*/
  40. #define OPUS_BAD_ARG -1
  41. /** Not enough bytes allocated in the buffer @hideinitializer*/
  42. #define OPUS_BUFFER_TOO_SMALL -2
  43. /** An internal error was detected @hideinitializer*/
  44. #define OPUS_INTERNAL_ERROR -3
  45. /** The compressed data passed is corrupted @hideinitializer*/
  46. #define OPUS_INVALID_PACKET -4
  47. /** Invalid/unsupported request number @hideinitializer*/
  48. #define OPUS_UNIMPLEMENTED -5
  49. /** An encoder or decoder structure is invalid or already freed @hideinitializer*/
  50. #define OPUS_INVALID_STATE -6
  51. /** Memory allocation has failed @hideinitializer*/
  52. #define OPUS_ALLOC_FAIL -7
  53. /**@}*/
  54. /** @cond OPUS_INTERNAL_DOC */
  55. /**Export control for opus functions */
  56. #ifndef OPUS_EXPORT
  57. # if defined(_WIN32)
  58. # if defined(OPUS_BUILD) && defined(DLL_EXPORT)
  59. # define OPUS_EXPORT __declspec(dllexport)
  60. # else
  61. # define OPUS_EXPORT
  62. # endif
  63. # elif defined(__GNUC__) && defined(OPUS_BUILD)
  64. # define OPUS_EXPORT __attribute__ ((visibility ("default")))
  65. # else
  66. # define OPUS_EXPORT
  67. # endif
  68. #endif
  69. # if !defined(OPUS_GNUC_PREREQ)
  70. # if defined(__GNUC__)&&defined(__GNUC_MINOR__)
  71. # define OPUS_GNUC_PREREQ(_maj,_min) \
  72. ((__GNUC__<<16)+__GNUC_MINOR__>=((_maj)<<16)+(_min))
  73. # else
  74. # define OPUS_GNUC_PREREQ(_maj,_min) 0
  75. # endif
  76. # endif
  77. #if (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L) )
  78. # if OPUS_GNUC_PREREQ(3,0)
  79. # define OPUS_RESTRICT __restrict__
  80. # elif (defined(_MSC_VER) && _MSC_VER >= 1400)
  81. # define OPUS_RESTRICT __restrict
  82. # else
  83. # define OPUS_RESTRICT
  84. # endif
  85. #else
  86. # define OPUS_RESTRICT restrict
  87. #endif
  88. #if (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L) )
  89. # if OPUS_GNUC_PREREQ(2,7)
  90. # define OPUS_INLINE __inline__
  91. # elif (defined(_MSC_VER))
  92. # define OPUS_INLINE __inline
  93. # else
  94. # define OPUS_INLINE
  95. # endif
  96. #else
  97. # define OPUS_INLINE inline
  98. #endif
  99. /**Warning attributes for opus functions
  100. * NONNULL is not used in OPUS_BUILD to avoid the compiler optimizing out
  101. * some paranoid null checks. */
  102. #if defined(__GNUC__) && OPUS_GNUC_PREREQ(3, 4)
  103. # define OPUS_WARN_UNUSED_RESULT __attribute__ ((__warn_unused_result__))
  104. #else
  105. # define OPUS_WARN_UNUSED_RESULT
  106. #endif
  107. #if !defined(OPUS_BUILD) && defined(__GNUC__) && OPUS_GNUC_PREREQ(3, 4)
  108. # define OPUS_ARG_NONNULL(_x) __attribute__ ((__nonnull__(_x)))
  109. #else
  110. # define OPUS_ARG_NONNULL(_x)
  111. #endif
  112. /** These are the actual Encoder CTL ID numbers.
  113. * They should not be used directly by applications.
  114. * In general, SETs should be even and GETs should be odd.*/
  115. #define OPUS_SET_APPLICATION_REQUEST 4000
  116. #define OPUS_GET_APPLICATION_REQUEST 4001
  117. #define OPUS_SET_BITRATE_REQUEST 4002
  118. #define OPUS_GET_BITRATE_REQUEST 4003
  119. #define OPUS_SET_MAX_BANDWIDTH_REQUEST 4004
  120. #define OPUS_GET_MAX_BANDWIDTH_REQUEST 4005
  121. #define OPUS_SET_VBR_REQUEST 4006
  122. #define OPUS_GET_VBR_REQUEST 4007
  123. #define OPUS_SET_BANDWIDTH_REQUEST 4008
  124. #define OPUS_GET_BANDWIDTH_REQUEST 4009
  125. #define OPUS_SET_COMPLEXITY_REQUEST 4010
  126. #define OPUS_GET_COMPLEXITY_REQUEST 4011
  127. #define OPUS_SET_INBAND_FEC_REQUEST 4012
  128. #define OPUS_GET_INBAND_FEC_REQUEST 4013
  129. #define OPUS_SET_PACKET_LOSS_PERC_REQUEST 4014
  130. #define OPUS_GET_PACKET_LOSS_PERC_REQUEST 4015
  131. #define OPUS_SET_DTX_REQUEST 4016
  132. #define OPUS_GET_DTX_REQUEST 4017
  133. #define OPUS_SET_VBR_CONSTRAINT_REQUEST 4020
  134. #define OPUS_GET_VBR_CONSTRAINT_REQUEST 4021
  135. #define OPUS_SET_FORCE_CHANNELS_REQUEST 4022
  136. #define OPUS_GET_FORCE_CHANNELS_REQUEST 4023
  137. #define OPUS_SET_SIGNAL_REQUEST 4024
  138. #define OPUS_GET_SIGNAL_REQUEST 4025
  139. #define OPUS_GET_LOOKAHEAD_REQUEST 4027
  140. /* #define OPUS_RESET_STATE 4028 */
  141. #define OPUS_GET_SAMPLE_RATE_REQUEST 4029
  142. #define OPUS_GET_FINAL_RANGE_REQUEST 4031
  143. #define OPUS_GET_PITCH_REQUEST 4033
  144. #define OPUS_SET_GAIN_REQUEST 4034
  145. #define OPUS_GET_GAIN_REQUEST 4045 /* Should have been 4035 */
  146. #define OPUS_SET_LSB_DEPTH_REQUEST 4036
  147. #define OPUS_GET_LSB_DEPTH_REQUEST 4037
  148. #define OPUS_GET_LAST_PACKET_DURATION_REQUEST 4039
  149. #define OPUS_SET_EXPERT_FRAME_DURATION_REQUEST 4040
  150. #define OPUS_GET_EXPERT_FRAME_DURATION_REQUEST 4041
  151. #define OPUS_SET_PREDICTION_DISABLED_REQUEST 4042
  152. #define OPUS_GET_PREDICTION_DISABLED_REQUEST 4043
  153. /* Don't use 4045, it's already taken by OPUS_GET_GAIN_REQUEST */
  154. #define OPUS_SET_PHASE_INVERSION_DISABLED_REQUEST 4046
  155. #define OPUS_GET_PHASE_INVERSION_DISABLED_REQUEST 4047
  156. #define OPUS_GET_IN_DTX_REQUEST 4049
  157. /** Defines for the presence of extended APIs. */
  158. #define OPUS_HAVE_OPUS_PROJECTION_H
  159. /* Macros to trigger compilation errors when the wrong types are provided to a CTL */
  160. #define __opus_check_int(x) (((void)((x) == (opus_int32)0)), (opus_int32)(x))
  161. #define __opus_check_int_ptr(ptr) ((ptr) + ((ptr) - (opus_int32*)(ptr)))
  162. #define __opus_check_uint_ptr(ptr) ((ptr) + ((ptr) - (opus_uint32*)(ptr)))
  163. #define __opus_check_val16_ptr(ptr) ((ptr) + ((ptr) - (opus_val16*)(ptr)))
  164. /** @endcond */
  165. /** @defgroup opus_ctlvalues Pre-defined values for CTL interface
  166. * @see opus_genericctls, opus_encoderctls
  167. * @{
  168. */
  169. /* Values for the various encoder CTLs */
  170. #define OPUS_AUTO -1000 /**<Auto/default setting @hideinitializer*/
  171. #define OPUS_BITRATE_MAX -1 /**<Maximum bitrate @hideinitializer*/
  172. /** Best for most VoIP/videoconference applications where listening quality and intelligibility matter most
  173. * @hideinitializer */
  174. #define OPUS_APPLICATION_VOIP 2048
  175. /** Best for broadcast/high-fidelity application where the decoded audio should be as close as possible to the input
  176. * @hideinitializer */
  177. #define OPUS_APPLICATION_AUDIO 2049
  178. /** Only use when lowest-achievable latency is what matters most. Voice-optimized modes cannot be used.
  179. * @hideinitializer */
  180. #define OPUS_APPLICATION_RESTRICTED_LOWDELAY 2051
  181. #define OPUS_SIGNAL_VOICE 3001 /**< Signal being encoded is voice */
  182. #define OPUS_SIGNAL_MUSIC 3002 /**< Signal being encoded is music */
  183. #define OPUS_BANDWIDTH_NARROWBAND 1101 /**< 4 kHz bandpass @hideinitializer*/
  184. #define OPUS_BANDWIDTH_MEDIUMBAND 1102 /**< 6 kHz bandpass @hideinitializer*/
  185. #define OPUS_BANDWIDTH_WIDEBAND 1103 /**< 8 kHz bandpass @hideinitializer*/
  186. #define OPUS_BANDWIDTH_SUPERWIDEBAND 1104 /**<12 kHz bandpass @hideinitializer*/
  187. #define OPUS_BANDWIDTH_FULLBAND 1105 /**<20 kHz bandpass @hideinitializer*/
  188. #define OPUS_FRAMESIZE_ARG 5000 /**< Select frame size from the argument (default) */
  189. #define OPUS_FRAMESIZE_2_5_MS 5001 /**< Use 2.5 ms frames */
  190. #define OPUS_FRAMESIZE_5_MS 5002 /**< Use 5 ms frames */
  191. #define OPUS_FRAMESIZE_10_MS 5003 /**< Use 10 ms frames */
  192. #define OPUS_FRAMESIZE_20_MS 5004 /**< Use 20 ms frames */
  193. #define OPUS_FRAMESIZE_40_MS 5005 /**< Use 40 ms frames */
  194. #define OPUS_FRAMESIZE_60_MS 5006 /**< Use 60 ms frames */
  195. #define OPUS_FRAMESIZE_80_MS 5007 /**< Use 80 ms frames */
  196. #define OPUS_FRAMESIZE_100_MS 5008 /**< Use 100 ms frames */
  197. #define OPUS_FRAMESIZE_120_MS 5009 /**< Use 120 ms frames */
  198. /**@}*/
  199. /** @defgroup opus_encoderctls Encoder related CTLs
  200. *
  201. * These are convenience macros for use with the \c opus_encode_ctl
  202. * interface. They are used to generate the appropriate series of
  203. * arguments for that call, passing the correct type, size and so
  204. * on as expected for each particular request.
  205. *
  206. * Some usage examples:
  207. *
  208. * @code
  209. * int ret;
  210. * ret = opus_encoder_ctl(enc_ctx, OPUS_SET_BANDWIDTH(OPUS_AUTO));
  211. * if (ret != OPUS_OK) return ret;
  212. *
  213. * opus_int32 rate;
  214. * opus_encoder_ctl(enc_ctx, OPUS_GET_BANDWIDTH(&rate));
  215. *
  216. * opus_encoder_ctl(enc_ctx, OPUS_RESET_STATE);
  217. * @endcode
  218. *
  219. * @see opus_genericctls, opus_encoder
  220. * @{
  221. */
  222. /** Configures the encoder's computational complexity.
  223. * The supported range is 0-10 inclusive with 10 representing the highest complexity.
  224. * @see OPUS_GET_COMPLEXITY
  225. * @param[in] x <tt>opus_int32</tt>: Allowed values: 0-10, inclusive.
  226. *
  227. * @hideinitializer */
  228. #define OPUS_SET_COMPLEXITY(x) OPUS_SET_COMPLEXITY_REQUEST, __opus_check_int(x)
  229. /** Gets the encoder's complexity configuration.
  230. * @see OPUS_SET_COMPLEXITY
  231. * @param[out] x <tt>opus_int32 *</tt>: Returns a value in the range 0-10,
  232. * inclusive.
  233. * @hideinitializer */
  234. #define OPUS_GET_COMPLEXITY(x) OPUS_GET_COMPLEXITY_REQUEST, __opus_check_int_ptr(x)
  235. /** Configures the bitrate in the encoder.
  236. * Rates from 500 to 512000 bits per second are meaningful, as well as the
  237. * special values #OPUS_AUTO and #OPUS_BITRATE_MAX.
  238. * The value #OPUS_BITRATE_MAX can be used to cause the codec to use as much
  239. * rate as it can, which is useful for controlling the rate by adjusting the
  240. * output buffer size.
  241. * @see OPUS_GET_BITRATE
  242. * @param[in] x <tt>opus_int32</tt>: Bitrate in bits per second. The default
  243. * is determined based on the number of
  244. * channels and the input sampling rate.
  245. * @hideinitializer */
  246. #define OPUS_SET_BITRATE(x) OPUS_SET_BITRATE_REQUEST, __opus_check_int(x)
  247. /** Gets the encoder's bitrate configuration.
  248. * @see OPUS_SET_BITRATE
  249. * @param[out] x <tt>opus_int32 *</tt>: Returns the bitrate in bits per second.
  250. * The default is determined based on the
  251. * number of channels and the input
  252. * sampling rate.
  253. * @hideinitializer */
  254. #define OPUS_GET_BITRATE(x) OPUS_GET_BITRATE_REQUEST, __opus_check_int_ptr(x)
  255. /** Enables or disables variable bitrate (VBR) in the encoder.
  256. * The configured bitrate may not be met exactly because frames must
  257. * be an integer number of bytes in length.
  258. * @see OPUS_GET_VBR
  259. * @see OPUS_SET_VBR_CONSTRAINT
  260. * @param[in] x <tt>opus_int32</tt>: Allowed values:
  261. * <dl>
  262. * <dt>0</dt><dd>Hard CBR. For LPC/hybrid modes at very low bit-rate, this can
  263. * cause noticeable quality degradation.</dd>
  264. * <dt>1</dt><dd>VBR (default). The exact type of VBR is controlled by
  265. * #OPUS_SET_VBR_CONSTRAINT.</dd>
  266. * </dl>
  267. * @hideinitializer */
  268. #define OPUS_SET_VBR(x) OPUS_SET_VBR_REQUEST, __opus_check_int(x)
  269. /** Determine if variable bitrate (VBR) is enabled in the encoder.
  270. * @see OPUS_SET_VBR
  271. * @see OPUS_GET_VBR_CONSTRAINT
  272. * @param[out] x <tt>opus_int32 *</tt>: Returns one of the following values:
  273. * <dl>
  274. * <dt>0</dt><dd>Hard CBR.</dd>
  275. * <dt>1</dt><dd>VBR (default). The exact type of VBR may be retrieved via
  276. * #OPUS_GET_VBR_CONSTRAINT.</dd>
  277. * </dl>
  278. * @hideinitializer */
  279. #define OPUS_GET_VBR(x) OPUS_GET_VBR_REQUEST, __opus_check_int_ptr(x)
  280. /** Enables or disables constrained VBR in the encoder.
  281. * This setting is ignored when the encoder is in CBR mode.
  282. * @warning Only the MDCT mode of Opus currently heeds the constraint.
  283. * Speech mode ignores it completely, hybrid mode may fail to obey it
  284. * if the LPC layer uses more bitrate than the constraint would have
  285. * permitted.
  286. * @see OPUS_GET_VBR_CONSTRAINT
  287. * @see OPUS_SET_VBR
  288. * @param[in] x <tt>opus_int32</tt>: Allowed values:
  289. * <dl>
  290. * <dt>0</dt><dd>Unconstrained VBR.</dd>
  291. * <dt>1</dt><dd>Constrained VBR (default). This creates a maximum of one
  292. * frame of buffering delay assuming a transport with a
  293. * serialization speed of the nominal bitrate.</dd>
  294. * </dl>
  295. * @hideinitializer */
  296. #define OPUS_SET_VBR_CONSTRAINT(x) OPUS_SET_VBR_CONSTRAINT_REQUEST, __opus_check_int(x)
  297. /** Determine if constrained VBR is enabled in the encoder.
  298. * @see OPUS_SET_VBR_CONSTRAINT
  299. * @see OPUS_GET_VBR
  300. * @param[out] x <tt>opus_int32 *</tt>: Returns one of the following values:
  301. * <dl>
  302. * <dt>0</dt><dd>Unconstrained VBR.</dd>
  303. * <dt>1</dt><dd>Constrained VBR (default).</dd>
  304. * </dl>
  305. * @hideinitializer */
  306. #define OPUS_GET_VBR_CONSTRAINT(x) OPUS_GET_VBR_CONSTRAINT_REQUEST, __opus_check_int_ptr(x)
  307. /** Configures mono/stereo forcing in the encoder.
  308. * This can force the encoder to produce packets encoded as either mono or
  309. * stereo, regardless of the format of the input audio. This is useful when
  310. * the caller knows that the input signal is currently a mono source embedded
  311. * in a stereo stream.
  312. * @see OPUS_GET_FORCE_CHANNELS
  313. * @param[in] x <tt>opus_int32</tt>: Allowed values:
  314. * <dl>
  315. * <dt>#OPUS_AUTO</dt><dd>Not forced (default)</dd>
  316. * <dt>1</dt> <dd>Forced mono</dd>
  317. * <dt>2</dt> <dd>Forced stereo</dd>
  318. * </dl>
  319. * @hideinitializer */
  320. #define OPUS_SET_FORCE_CHANNELS(x) OPUS_SET_FORCE_CHANNELS_REQUEST, __opus_check_int(x)
  321. /** Gets the encoder's forced channel configuration.
  322. * @see OPUS_SET_FORCE_CHANNELS
  323. * @param[out] x <tt>opus_int32 *</tt>:
  324. * <dl>
  325. * <dt>#OPUS_AUTO</dt><dd>Not forced (default)</dd>
  326. * <dt>1</dt> <dd>Forced mono</dd>
  327. * <dt>2</dt> <dd>Forced stereo</dd>
  328. * </dl>
  329. * @hideinitializer */
  330. #define OPUS_GET_FORCE_CHANNELS(x) OPUS_GET_FORCE_CHANNELS_REQUEST, __opus_check_int_ptr(x)
  331. /** Configures the maximum bandpass that the encoder will select automatically.
  332. * Applications should normally use this instead of #OPUS_SET_BANDWIDTH
  333. * (leaving that set to the default, #OPUS_AUTO). This allows the
  334. * application to set an upper bound based on the type of input it is
  335. * providing, but still gives the encoder the freedom to reduce the bandpass
  336. * when the bitrate becomes too low, for better overall quality.
  337. * @see OPUS_GET_MAX_BANDWIDTH
  338. * @param[in] x <tt>opus_int32</tt>: Allowed values:
  339. * <dl>
  340. * <dt>OPUS_BANDWIDTH_NARROWBAND</dt> <dd>4 kHz passband</dd>
  341. * <dt>OPUS_BANDWIDTH_MEDIUMBAND</dt> <dd>6 kHz passband</dd>
  342. * <dt>OPUS_BANDWIDTH_WIDEBAND</dt> <dd>8 kHz passband</dd>
  343. * <dt>OPUS_BANDWIDTH_SUPERWIDEBAND</dt><dd>12 kHz passband</dd>
  344. * <dt>OPUS_BANDWIDTH_FULLBAND</dt> <dd>20 kHz passband (default)</dd>
  345. * </dl>
  346. * @hideinitializer */
  347. #define OPUS_SET_MAX_BANDWIDTH(x) OPUS_SET_MAX_BANDWIDTH_REQUEST, __opus_check_int(x)
  348. /** Gets the encoder's configured maximum allowed bandpass.
  349. * @see OPUS_SET_MAX_BANDWIDTH
  350. * @param[out] x <tt>opus_int32 *</tt>: Allowed values:
  351. * <dl>
  352. * <dt>#OPUS_BANDWIDTH_NARROWBAND</dt> <dd>4 kHz passband</dd>
  353. * <dt>#OPUS_BANDWIDTH_MEDIUMBAND</dt> <dd>6 kHz passband</dd>
  354. * <dt>#OPUS_BANDWIDTH_WIDEBAND</dt> <dd>8 kHz passband</dd>
  355. * <dt>#OPUS_BANDWIDTH_SUPERWIDEBAND</dt><dd>12 kHz passband</dd>
  356. * <dt>#OPUS_BANDWIDTH_FULLBAND</dt> <dd>20 kHz passband (default)</dd>
  357. * </dl>
  358. * @hideinitializer */
  359. #define OPUS_GET_MAX_BANDWIDTH(x) OPUS_GET_MAX_BANDWIDTH_REQUEST, __opus_check_int_ptr(x)
  360. /** Sets the encoder's bandpass to a specific value.
  361. * This prevents the encoder from automatically selecting the bandpass based
  362. * on the available bitrate. If an application knows the bandpass of the input
  363. * audio it is providing, it should normally use #OPUS_SET_MAX_BANDWIDTH
  364. * instead, which still gives the encoder the freedom to reduce the bandpass
  365. * when the bitrate becomes too low, for better overall quality.
  366. * @see OPUS_GET_BANDWIDTH
  367. * @param[in] x <tt>opus_int32</tt>: Allowed values:
  368. * <dl>
  369. * <dt>#OPUS_AUTO</dt> <dd>(default)</dd>
  370. * <dt>#OPUS_BANDWIDTH_NARROWBAND</dt> <dd>4 kHz passband</dd>
  371. * <dt>#OPUS_BANDWIDTH_MEDIUMBAND</dt> <dd>6 kHz passband</dd>
  372. * <dt>#OPUS_BANDWIDTH_WIDEBAND</dt> <dd>8 kHz passband</dd>
  373. * <dt>#OPUS_BANDWIDTH_SUPERWIDEBAND</dt><dd>12 kHz passband</dd>
  374. * <dt>#OPUS_BANDWIDTH_FULLBAND</dt> <dd>20 kHz passband</dd>
  375. * </dl>
  376. * @hideinitializer */
  377. #define OPUS_SET_BANDWIDTH(x) OPUS_SET_BANDWIDTH_REQUEST, __opus_check_int(x)
  378. /** Configures the type of signal being encoded.
  379. * This is a hint which helps the encoder's mode selection.
  380. * @see OPUS_GET_SIGNAL
  381. * @param[in] x <tt>opus_int32</tt>: Allowed values:
  382. * <dl>
  383. * <dt>#OPUS_AUTO</dt> <dd>(default)</dd>
  384. * <dt>#OPUS_SIGNAL_VOICE</dt><dd>Bias thresholds towards choosing LPC or Hybrid modes.</dd>
  385. * <dt>#OPUS_SIGNAL_MUSIC</dt><dd>Bias thresholds towards choosing MDCT modes.</dd>
  386. * </dl>
  387. * @hideinitializer */
  388. #define OPUS_SET_SIGNAL(x) OPUS_SET_SIGNAL_REQUEST, __opus_check_int(x)
  389. /** Gets the encoder's configured signal type.
  390. * @see OPUS_SET_SIGNAL
  391. * @param[out] x <tt>opus_int32 *</tt>: Returns one of the following values:
  392. * <dl>
  393. * <dt>#OPUS_AUTO</dt> <dd>(default)</dd>
  394. * <dt>#OPUS_SIGNAL_VOICE</dt><dd>Bias thresholds towards choosing LPC or Hybrid modes.</dd>
  395. * <dt>#OPUS_SIGNAL_MUSIC</dt><dd>Bias thresholds towards choosing MDCT modes.</dd>
  396. * </dl>
  397. * @hideinitializer */
  398. #define OPUS_GET_SIGNAL(x) OPUS_GET_SIGNAL_REQUEST, __opus_check_int_ptr(x)
  399. /** Configures the encoder's intended application.
  400. * The initial value is a mandatory argument to the encoder_create function.
  401. * @see OPUS_GET_APPLICATION
  402. * @param[in] x <tt>opus_int32</tt>: Returns one of the following values:
  403. * <dl>
  404. * <dt>#OPUS_APPLICATION_VOIP</dt>
  405. * <dd>Process signal for improved speech intelligibility.</dd>
  406. * <dt>#OPUS_APPLICATION_AUDIO</dt>
  407. * <dd>Favor faithfulness to the original input.</dd>
  408. * <dt>#OPUS_APPLICATION_RESTRICTED_LOWDELAY</dt>
  409. * <dd>Configure the minimum possible coding delay by disabling certain modes
  410. * of operation.</dd>
  411. * </dl>
  412. * @hideinitializer */
  413. #define OPUS_SET_APPLICATION(x) OPUS_SET_APPLICATION_REQUEST, __opus_check_int(x)
  414. /** Gets the encoder's configured application.
  415. * @see OPUS_SET_APPLICATION
  416. * @param[out] x <tt>opus_int32 *</tt>: Returns one of the following values:
  417. * <dl>
  418. * <dt>#OPUS_APPLICATION_VOIP</dt>
  419. * <dd>Process signal for improved speech intelligibility.</dd>
  420. * <dt>#OPUS_APPLICATION_AUDIO</dt>
  421. * <dd>Favor faithfulness to the original input.</dd>
  422. * <dt>#OPUS_APPLICATION_RESTRICTED_LOWDELAY</dt>
  423. * <dd>Configure the minimum possible coding delay by disabling certain modes
  424. * of operation.</dd>
  425. * </dl>
  426. * @hideinitializer */
  427. #define OPUS_GET_APPLICATION(x) OPUS_GET_APPLICATION_REQUEST, __opus_check_int_ptr(x)
  428. /** Gets the total samples of delay added by the entire codec.
  429. * This can be queried by the encoder and then the provided number of samples can be
  430. * skipped on from the start of the decoder's output to provide time aligned input
  431. * and output. From the perspective of a decoding application the real data begins this many
  432. * samples late.
  433. *
  434. * The decoder contribution to this delay is identical for all decoders, but the
  435. * encoder portion of the delay may vary from implementation to implementation,
  436. * version to version, or even depend on the encoder's initial configuration.
  437. * Applications needing delay compensation should call this CTL rather than
  438. * hard-coding a value.
  439. * @param[out] x <tt>opus_int32 *</tt>: Number of lookahead samples
  440. * @hideinitializer */
  441. #define OPUS_GET_LOOKAHEAD(x) OPUS_GET_LOOKAHEAD_REQUEST, __opus_check_int_ptr(x)
  442. /** Configures the encoder's use of inband forward error correction (FEC).
  443. * @note This is only applicable to the LPC layer
  444. * @see OPUS_GET_INBAND_FEC
  445. * @param[in] x <tt>opus_int32</tt>: Allowed values:
  446. * <dl>
  447. * <dt>0</dt><dd>Disable inband FEC (default).</dd>
  448. * <dt>1</dt><dd>Enable inband FEC.</dd>
  449. * </dl>
  450. * @hideinitializer */
  451. #define OPUS_SET_INBAND_FEC(x) OPUS_SET_INBAND_FEC_REQUEST, __opus_check_int(x)
  452. /** Gets encoder's configured use of inband forward error correction.
  453. * @see OPUS_SET_INBAND_FEC
  454. * @param[out] x <tt>opus_int32 *</tt>: Returns one of the following values:
  455. * <dl>
  456. * <dt>0</dt><dd>Inband FEC disabled (default).</dd>
  457. * <dt>1</dt><dd>Inband FEC enabled.</dd>
  458. * </dl>
  459. * @hideinitializer */
  460. #define OPUS_GET_INBAND_FEC(x) OPUS_GET_INBAND_FEC_REQUEST, __opus_check_int_ptr(x)
  461. /** Configures the encoder's expected packet loss percentage.
  462. * Higher values trigger progressively more loss resistant behavior in the encoder
  463. * at the expense of quality at a given bitrate in the absence of packet loss, but
  464. * greater quality under loss.
  465. * @see OPUS_GET_PACKET_LOSS_PERC
  466. * @param[in] x <tt>opus_int32</tt>: Loss percentage in the range 0-100, inclusive (default: 0).
  467. * @hideinitializer */
  468. #define OPUS_SET_PACKET_LOSS_PERC(x) OPUS_SET_PACKET_LOSS_PERC_REQUEST, __opus_check_int(x)
  469. /** Gets the encoder's configured packet loss percentage.
  470. * @see OPUS_SET_PACKET_LOSS_PERC
  471. * @param[out] x <tt>opus_int32 *</tt>: Returns the configured loss percentage
  472. * in the range 0-100, inclusive (default: 0).
  473. * @hideinitializer */
  474. #define OPUS_GET_PACKET_LOSS_PERC(x) OPUS_GET_PACKET_LOSS_PERC_REQUEST, __opus_check_int_ptr(x)
  475. /** Configures the encoder's use of discontinuous transmission (DTX).
  476. * @note This is only applicable to the LPC layer
  477. * @see OPUS_GET_DTX
  478. * @param[in] x <tt>opus_int32</tt>: Allowed values:
  479. * <dl>
  480. * <dt>0</dt><dd>Disable DTX (default).</dd>
  481. * <dt>1</dt><dd>Enabled DTX.</dd>
  482. * </dl>
  483. * @hideinitializer */
  484. #define OPUS_SET_DTX(x) OPUS_SET_DTX_REQUEST, __opus_check_int(x)
  485. /** Gets encoder's configured use of discontinuous transmission.
  486. * @see OPUS_SET_DTX
  487. * @param[out] x <tt>opus_int32 *</tt>: Returns one of the following values:
  488. * <dl>
  489. * <dt>0</dt><dd>DTX disabled (default).</dd>
  490. * <dt>1</dt><dd>DTX enabled.</dd>
  491. * </dl>
  492. * @hideinitializer */
  493. #define OPUS_GET_DTX(x) OPUS_GET_DTX_REQUEST, __opus_check_int_ptr(x)
  494. /** Configures the depth of signal being encoded.
  495. *
  496. * This is a hint which helps the encoder identify silence and near-silence.
  497. * It represents the number of significant bits of linear intensity below
  498. * which the signal contains ignorable quantization or other noise.
  499. *
  500. * For example, OPUS_SET_LSB_DEPTH(14) would be an appropriate setting
  501. * for G.711 u-law input. OPUS_SET_LSB_DEPTH(16) would be appropriate
  502. * for 16-bit linear pcm input with opus_encode_float().
  503. *
  504. * When using opus_encode() instead of opus_encode_float(), or when libopus
  505. * is compiled for fixed-point, the encoder uses the minimum of the value
  506. * set here and the value 16.
  507. *
  508. * @see OPUS_GET_LSB_DEPTH
  509. * @param[in] x <tt>opus_int32</tt>: Input precision in bits, between 8 and 24
  510. * (default: 24).
  511. * @hideinitializer */
  512. #define OPUS_SET_LSB_DEPTH(x) OPUS_SET_LSB_DEPTH_REQUEST, __opus_check_int(x)
  513. /** Gets the encoder's configured signal depth.
  514. * @see OPUS_SET_LSB_DEPTH
  515. * @param[out] x <tt>opus_int32 *</tt>: Input precision in bits, between 8 and
  516. * 24 (default: 24).
  517. * @hideinitializer */
  518. #define OPUS_GET_LSB_DEPTH(x) OPUS_GET_LSB_DEPTH_REQUEST, __opus_check_int_ptr(x)
  519. /** Configures the encoder's use of variable duration frames.
  520. * When variable duration is enabled, the encoder is free to use a shorter frame
  521. * size than the one requested in the opus_encode*() call.
  522. * It is then the user's responsibility
  523. * to verify how much audio was encoded by checking the ToC byte of the encoded
  524. * packet. The part of the audio that was not encoded needs to be resent to the
  525. * encoder for the next call. Do not use this option unless you <b>really</b>
  526. * know what you are doing.
  527. * @see OPUS_GET_EXPERT_FRAME_DURATION
  528. * @param[in] x <tt>opus_int32</tt>: Allowed values:
  529. * <dl>
  530. * <dt>OPUS_FRAMESIZE_ARG</dt><dd>Select frame size from the argument (default).</dd>
  531. * <dt>OPUS_FRAMESIZE_2_5_MS</dt><dd>Use 2.5 ms frames.</dd>
  532. * <dt>OPUS_FRAMESIZE_5_MS</dt><dd>Use 5 ms frames.</dd>
  533. * <dt>OPUS_FRAMESIZE_10_MS</dt><dd>Use 10 ms frames.</dd>
  534. * <dt>OPUS_FRAMESIZE_20_MS</dt><dd>Use 20 ms frames.</dd>
  535. * <dt>OPUS_FRAMESIZE_40_MS</dt><dd>Use 40 ms frames.</dd>
  536. * <dt>OPUS_FRAMESIZE_60_MS</dt><dd>Use 60 ms frames.</dd>
  537. * <dt>OPUS_FRAMESIZE_80_MS</dt><dd>Use 80 ms frames.</dd>
  538. * <dt>OPUS_FRAMESIZE_100_MS</dt><dd>Use 100 ms frames.</dd>
  539. * <dt>OPUS_FRAMESIZE_120_MS</dt><dd>Use 120 ms frames.</dd>
  540. * </dl>
  541. * @hideinitializer */
  542. #define OPUS_SET_EXPERT_FRAME_DURATION(x) OPUS_SET_EXPERT_FRAME_DURATION_REQUEST, __opus_check_int(x)
  543. /** Gets the encoder's configured use of variable duration frames.
  544. * @see OPUS_SET_EXPERT_FRAME_DURATION
  545. * @param[out] x <tt>opus_int32 *</tt>: Returns one of the following values:
  546. * <dl>
  547. * <dt>OPUS_FRAMESIZE_ARG</dt><dd>Select frame size from the argument (default).</dd>
  548. * <dt>OPUS_FRAMESIZE_2_5_MS</dt><dd>Use 2.5 ms frames.</dd>
  549. * <dt>OPUS_FRAMESIZE_5_MS</dt><dd>Use 5 ms frames.</dd>
  550. * <dt>OPUS_FRAMESIZE_10_MS</dt><dd>Use 10 ms frames.</dd>
  551. * <dt>OPUS_FRAMESIZE_20_MS</dt><dd>Use 20 ms frames.</dd>
  552. * <dt>OPUS_FRAMESIZE_40_MS</dt><dd>Use 40 ms frames.</dd>
  553. * <dt>OPUS_FRAMESIZE_60_MS</dt><dd>Use 60 ms frames.</dd>
  554. * <dt>OPUS_FRAMESIZE_80_MS</dt><dd>Use 80 ms frames.</dd>
  555. * <dt>OPUS_FRAMESIZE_100_MS</dt><dd>Use 100 ms frames.</dd>
  556. * <dt>OPUS_FRAMESIZE_120_MS</dt><dd>Use 120 ms frames.</dd>
  557. * </dl>
  558. * @hideinitializer */
  559. #define OPUS_GET_EXPERT_FRAME_DURATION(x) OPUS_GET_EXPERT_FRAME_DURATION_REQUEST, __opus_check_int_ptr(x)
  560. /** If set to 1, disables almost all use of prediction, making frames almost
  561. * completely independent. This reduces quality.
  562. * @see OPUS_GET_PREDICTION_DISABLED
  563. * @param[in] x <tt>opus_int32</tt>: Allowed values:
  564. * <dl>
  565. * <dt>0</dt><dd>Enable prediction (default).</dd>
  566. * <dt>1</dt><dd>Disable prediction.</dd>
  567. * </dl>
  568. * @hideinitializer */
  569. #define OPUS_SET_PREDICTION_DISABLED(x) OPUS_SET_PREDICTION_DISABLED_REQUEST, __opus_check_int(x)
  570. /** Gets the encoder's configured prediction status.
  571. * @see OPUS_SET_PREDICTION_DISABLED
  572. * @param[out] x <tt>opus_int32 *</tt>: Returns one of the following values:
  573. * <dl>
  574. * <dt>0</dt><dd>Prediction enabled (default).</dd>
  575. * <dt>1</dt><dd>Prediction disabled.</dd>
  576. * </dl>
  577. * @hideinitializer */
  578. #define OPUS_GET_PREDICTION_DISABLED(x) OPUS_GET_PREDICTION_DISABLED_REQUEST, __opus_check_int_ptr(x)
  579. /**@}*/
  580. /** @defgroup opus_genericctls Generic CTLs
  581. *
  582. * These macros are used with the \c opus_decoder_ctl and
  583. * \c opus_encoder_ctl calls to generate a particular
  584. * request.
  585. *
  586. * When called on an \c OpusDecoder they apply to that
  587. * particular decoder instance. When called on an
  588. * \c OpusEncoder they apply to the corresponding setting
  589. * on that encoder instance, if present.
  590. *
  591. * Some usage examples:
  592. *
  593. * @code
  594. * int ret;
  595. * opus_int32 pitch;
  596. * ret = opus_decoder_ctl(dec_ctx, OPUS_GET_PITCH(&pitch));
  597. * if (ret == OPUS_OK) return ret;
  598. *
  599. * opus_encoder_ctl(enc_ctx, OPUS_RESET_STATE);
  600. * opus_decoder_ctl(dec_ctx, OPUS_RESET_STATE);
  601. *
  602. * opus_int32 enc_bw, dec_bw;
  603. * opus_encoder_ctl(enc_ctx, OPUS_GET_BANDWIDTH(&enc_bw));
  604. * opus_decoder_ctl(dec_ctx, OPUS_GET_BANDWIDTH(&dec_bw));
  605. * if (enc_bw != dec_bw) {
  606. * printf("packet bandwidth mismatch!\n");
  607. * }
  608. * @endcode
  609. *
  610. * @see opus_encoder, opus_decoder_ctl, opus_encoder_ctl, opus_decoderctls, opus_encoderctls
  611. * @{
  612. */
  613. /** Resets the codec state to be equivalent to a freshly initialized state.
  614. * This should be called when switching streams in order to prevent
  615. * the back to back decoding from giving different results from
  616. * one at a time decoding.
  617. * @hideinitializer */
  618. #define OPUS_RESET_STATE 4028
  619. /** Gets the final state of the codec's entropy coder.
  620. * This is used for testing purposes,
  621. * The encoder and decoder state should be identical after coding a payload
  622. * (assuming no data corruption or software bugs)
  623. *
  624. * @param[out] x <tt>opus_uint32 *</tt>: Entropy coder state
  625. *
  626. * @hideinitializer */
  627. #define OPUS_GET_FINAL_RANGE(x) OPUS_GET_FINAL_RANGE_REQUEST, __opus_check_uint_ptr(x)
  628. /** Gets the encoder's configured bandpass or the decoder's last bandpass.
  629. * @see OPUS_SET_BANDWIDTH
  630. * @param[out] x <tt>opus_int32 *</tt>: Returns one of the following values:
  631. * <dl>
  632. * <dt>#OPUS_AUTO</dt> <dd>(default)</dd>
  633. * <dt>#OPUS_BANDWIDTH_NARROWBAND</dt> <dd>4 kHz passband</dd>
  634. * <dt>#OPUS_BANDWIDTH_MEDIUMBAND</dt> <dd>6 kHz passband</dd>
  635. * <dt>#OPUS_BANDWIDTH_WIDEBAND</dt> <dd>8 kHz passband</dd>
  636. * <dt>#OPUS_BANDWIDTH_SUPERWIDEBAND</dt><dd>12 kHz passband</dd>
  637. * <dt>#OPUS_BANDWIDTH_FULLBAND</dt> <dd>20 kHz passband</dd>
  638. * </dl>
  639. * @hideinitializer */
  640. #define OPUS_GET_BANDWIDTH(x) OPUS_GET_BANDWIDTH_REQUEST, __opus_check_int_ptr(x)
  641. /** Gets the sampling rate the encoder or decoder was initialized with.
  642. * This simply returns the <code>Fs</code> value passed to opus_encoder_init()
  643. * or opus_decoder_init().
  644. * @param[out] x <tt>opus_int32 *</tt>: Sampling rate of encoder or decoder.
  645. * @hideinitializer
  646. */
  647. #define OPUS_GET_SAMPLE_RATE(x) OPUS_GET_SAMPLE_RATE_REQUEST, __opus_check_int_ptr(x)
  648. /** If set to 1, disables the use of phase inversion for intensity stereo,
  649. * improving the quality of mono downmixes, but slightly reducing normal
  650. * stereo quality. Disabling phase inversion in the decoder does not comply
  651. * with RFC 6716, although it does not cause any interoperability issue and
  652. * is expected to become part of the Opus standard once RFC 6716 is updated
  653. * by draft-ietf-codec-opus-update.
  654. * @see OPUS_GET_PHASE_INVERSION_DISABLED
  655. * @param[in] x <tt>opus_int32</tt>: Allowed values:
  656. * <dl>
  657. * <dt>0</dt><dd>Enable phase inversion (default).</dd>
  658. * <dt>1</dt><dd>Disable phase inversion.</dd>
  659. * </dl>
  660. * @hideinitializer */
  661. #define OPUS_SET_PHASE_INVERSION_DISABLED(x) OPUS_SET_PHASE_INVERSION_DISABLED_REQUEST, __opus_check_int(x)
  662. /** Gets the encoder's configured phase inversion status.
  663. * @see OPUS_SET_PHASE_INVERSION_DISABLED
  664. * @param[out] x <tt>opus_int32 *</tt>: Returns one of the following values:
  665. * <dl>
  666. * <dt>0</dt><dd>Stereo phase inversion enabled (default).</dd>
  667. * <dt>1</dt><dd>Stereo phase inversion disabled.</dd>
  668. * </dl>
  669. * @hideinitializer */
  670. #define OPUS_GET_PHASE_INVERSION_DISABLED(x) OPUS_GET_PHASE_INVERSION_DISABLED_REQUEST, __opus_check_int_ptr(x)
  671. /** Gets the DTX state of the encoder.
  672. * Returns whether the last encoded frame was either a comfort noise update
  673. * during DTX or not encoded because of DTX.
  674. * @param[out] x <tt>opus_int32 *</tt>: Returns one of the following values:
  675. * <dl>
  676. * <dt>0</dt><dd>The encoder is not in DTX.</dd>
  677. * <dt>1</dt><dd>The encoder is in DTX.</dd>
  678. * </dl>
  679. * @hideinitializer */
  680. #define OPUS_GET_IN_DTX(x) OPUS_GET_IN_DTX_REQUEST, __opus_check_int_ptr(x)
  681. /**@}*/
  682. /** @defgroup opus_decoderctls Decoder related CTLs
  683. * @see opus_genericctls, opus_encoderctls, opus_decoder
  684. * @{
  685. */
  686. /** Configures decoder gain adjustment.
  687. * Scales the decoded output by a factor specified in Q8 dB units.
  688. * This has a maximum range of -32768 to 32767 inclusive, and returns
  689. * OPUS_BAD_ARG otherwise. The default is zero indicating no adjustment.
  690. * This setting survives decoder reset.
  691. *
  692. * gain = pow(10, x/(20.0*256))
  693. *
  694. * @param[in] x <tt>opus_int32</tt>: Amount to scale PCM signal by in Q8 dB units.
  695. * @hideinitializer */
  696. #define OPUS_SET_GAIN(x) OPUS_SET_GAIN_REQUEST, __opus_check_int(x)
  697. /** Gets the decoder's configured gain adjustment. @see OPUS_SET_GAIN
  698. *
  699. * @param[out] x <tt>opus_int32 *</tt>: Amount to scale PCM signal by in Q8 dB units.
  700. * @hideinitializer */
  701. #define OPUS_GET_GAIN(x) OPUS_GET_GAIN_REQUEST, __opus_check_int_ptr(x)
  702. /** Gets the duration (in samples) of the last packet successfully decoded or concealed.
  703. * @param[out] x <tt>opus_int32 *</tt>: Number of samples (at current sampling rate).
  704. * @hideinitializer */
  705. #define OPUS_GET_LAST_PACKET_DURATION(x) OPUS_GET_LAST_PACKET_DURATION_REQUEST, __opus_check_int_ptr(x)
  706. /** Gets the pitch of the last decoded frame, if available.
  707. * This can be used for any post-processing algorithm requiring the use of pitch,
  708. * e.g. time stretching/shortening. If the last frame was not voiced, or if the
  709. * pitch was not coded in the frame, then zero is returned.
  710. *
  711. * This CTL is only implemented for decoder instances.
  712. *
  713. * @param[out] x <tt>opus_int32 *</tt>: pitch period at 48 kHz (or 0 if not available)
  714. *
  715. * @hideinitializer */
  716. #define OPUS_GET_PITCH(x) OPUS_GET_PITCH_REQUEST, __opus_check_int_ptr(x)
  717. /**@}*/
  718. /** @defgroup opus_libinfo Opus library information functions
  719. * @{
  720. */
  721. /** Converts an opus error code into a human readable string.
  722. *
  723. * @param[in] error <tt>int</tt>: Error number
  724. * @returns Error string
  725. */
  726. OPUS_EXPORT const char *opus_strerror(int error);
  727. /** Gets the libopus version string.
  728. *
  729. * Applications may look for the substring "-fixed" in the version string to
  730. * determine whether they have a fixed-point or floating-point build at
  731. * runtime.
  732. *
  733. * @returns Version string
  734. */
  735. OPUS_EXPORT const char *opus_get_version_string(void);
  736. /**@}*/
  737. #ifdef __cplusplus
  738. }
  739. #endif
  740. #endif /* OPUS_DEFINES_H */