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seekable_stream_encoder.cpp
资源名称：tcpmp.rar　[点击查看]
上传用户：wstnjxml
上传日期：2014-04-03
资源大小：7248k
文件大小：12k
源码类别：

Windows CE

开发平台：

C/C++

seekable_stream_encoder.cpp：源码内容
  1. /* libFLAC++ - Free Lossless Audio Codec library
  2.  * Copyright (C) 2002,2003,2004,2005  Josh Coalson
  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.  *
  8.  * - Redistributions of source code must retain the above copyright
  9.  * notice, this list of conditions and the following disclaimer.
  10.  *
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  * notice, this list of conditions and the following disclaimer in the
  13.  * documentation and/or other materials provided with the distribution.
  14.  *
  15.  * - Neither the name of the Xiph.org Foundation nor the names of its
  16.  * contributors may be used to endorse or promote products derived from
  17.  * this software without specific prior written permission.
  18.  *
  19.  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20.  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21.  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22.  * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
  23.  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  24.  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  25.  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  26.  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  27.  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  28.  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  29.  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30.  */
  32. #include "FLAC++/encoder.h"
  33. #include "FLAC/assert.h"
  35. #ifdef _MSC_VER
  36. // warning C4800: 'int' : forcing to bool 'true' or 'false' (performance warning)
  37. #pragma warning ( disable : 4800 )
  38. #endif
  40. namespace FLAC {
  41. namespace Encoder {
  43. SeekableStream::SeekableStream():
  44. encoder_(::FLAC__seekable_stream_encoder_new())
  45. { }
  47. SeekableStream::~SeekableStream()
  48. {
  49. if(0 != encoder_) {
  50. ::FLAC__seekable_stream_encoder_finish(encoder_);
  51. ::FLAC__seekable_stream_encoder_delete(encoder_);
  52. }
  53. }
  55. bool SeekableStream::is_valid() const
  56. {
  57. return 0 != encoder_;
  58. }
  60. bool SeekableStream::set_verify(bool value)
  61. {
  62. FLAC__ASSERT(is_valid());
  63. return (bool)::FLAC__seekable_stream_encoder_set_verify(encoder_, value);
  64. }
  66. bool SeekableStream::set_streamable_subset(bool value)
  67. {
  68. FLAC__ASSERT(is_valid());
  69. return (bool)::FLAC__seekable_stream_encoder_set_streamable_subset(encoder_, value);
  70. }
  72. bool SeekableStream::set_do_mid_side_stereo(bool value)
  73. {
  74. FLAC__ASSERT(is_valid());
  75. return (bool)::FLAC__seekable_stream_encoder_set_do_mid_side_stereo(encoder_, value);
  76. }
  78. bool SeekableStream::set_loose_mid_side_stereo(bool value)
  79. {
  80. FLAC__ASSERT(is_valid());
  81. return (bool)::FLAC__seekable_stream_encoder_set_loose_mid_side_stereo(encoder_, value);
  82. }
  84. bool SeekableStream::set_channels(unsigned value)
  85. {
  86. FLAC__ASSERT(is_valid());
  87. return (bool)::FLAC__seekable_stream_encoder_set_channels(encoder_, value);
  88. }
  90. bool SeekableStream::set_bits_per_sample(unsigned value)
  91. {
  92. FLAC__ASSERT(is_valid());
  93. return (bool)::FLAC__seekable_stream_encoder_set_bits_per_sample(encoder_, value);
  94. }
  96. bool SeekableStream::set_sample_rate(unsigned value)
  97. {
  98. FLAC__ASSERT(is_valid());
  99. return (bool)::FLAC__seekable_stream_encoder_set_sample_rate(encoder_, value);
  100. }
  102. bool SeekableStream::set_blocksize(unsigned value)
  103. {
  104. FLAC__ASSERT(is_valid());
  105. return (bool)::FLAC__seekable_stream_encoder_set_blocksize(encoder_, value);
  106. }
  108. bool SeekableStream::set_max_lpc_order(unsigned value)
  109. {
  110. FLAC__ASSERT(is_valid());
  111. return (bool)::FLAC__seekable_stream_encoder_set_max_lpc_order(encoder_, value);
  112. }
  114. bool SeekableStream::set_qlp_coeff_precision(unsigned value)
  115. {
  116. FLAC__ASSERT(is_valid());
  117. return (bool)::FLAC__seekable_stream_encoder_set_qlp_coeff_precision(encoder_, value);
  118. }
  120. bool SeekableStream::set_do_qlp_coeff_prec_search(bool value)
  121. {
  122. FLAC__ASSERT(is_valid());
  123. return (bool)::FLAC__seekable_stream_encoder_set_do_qlp_coeff_prec_search(encoder_, value);
  124. }
  126. bool SeekableStream::set_do_escape_coding(bool value)
  127. {
  128. FLAC__ASSERT(is_valid());
  129. return (bool)::FLAC__seekable_stream_encoder_set_do_escape_coding(encoder_, value);
  130. }
  132. bool SeekableStream::set_do_exhaustive_model_search(bool value)
  133. {
  134. FLAC__ASSERT(is_valid());
  135. return (bool)::FLAC__seekable_stream_encoder_set_do_exhaustive_model_search(encoder_, value);
  136. }
  138. bool SeekableStream::set_min_residual_partition_order(unsigned value)
  139. {
  140. FLAC__ASSERT(is_valid());
  141. return (bool)::FLAC__seekable_stream_encoder_set_min_residual_partition_order(encoder_, value);
  142. }
  144. bool SeekableStream::set_max_residual_partition_order(unsigned value)
  145. {
  146. FLAC__ASSERT(is_valid());
  147. return (bool)::FLAC__seekable_stream_encoder_set_max_residual_partition_order(encoder_, value);
  148. }
  150. bool SeekableStream::set_rice_parameter_search_dist(unsigned value)
  151. {
  152. FLAC__ASSERT(is_valid());
  153. return (bool)::FLAC__seekable_stream_encoder_set_rice_parameter_search_dist(encoder_, value);
  154. }
  156. bool SeekableStream::set_total_samples_estimate(FLAC__uint64 value)
  157. {
  158. FLAC__ASSERT(is_valid());
  159. return (bool)::FLAC__seekable_stream_encoder_set_total_samples_estimate(encoder_, value);
  160. }
  162. bool SeekableStream::set_metadata(::FLAC__StreamMetadata **metadata, unsigned num_blocks)
  163. {
  164. FLAC__ASSERT(is_valid());
  165. return (bool)::FLAC__seekable_stream_encoder_set_metadata(encoder_, metadata, num_blocks);
  166. }
  168. bool SeekableStream::set_metadata(FLAC::Metadata::Prototype **metadata, unsigned num_blocks)
  169. {
  170. FLAC__ASSERT(is_valid());
  171. #if (defined _MSC_VER) || (defined __SUNPRO_CC)
  172. // MSVC++ can't handle:
  173. // ::FLAC__StreamMetadata *m[num_blocks];
  174. // so we do this ugly workaround
  175. ::FLAC__StreamMetadata **m = new ::FLAC__StreamMetadata*[num_blocks];
  176. #else
  177. ::FLAC__StreamMetadata *m[num_blocks];
  178. #endif
  179. for(unsigned i = 0; i < num_blocks; i++) {
  180. // we can get away with this since we know the encoder will only correct the is_last flags
  181. m[i] = const_cast< ::FLAC__StreamMetadata*>((::FLAC__StreamMetadata*)metadata[i]);
  182. }
  183. #if (defined _MSC_VER) || (defined __SUNPRO_CC)
  184. // complete the hack
  185. const bool ok = (bool)::FLAC__seekable_stream_encoder_set_metadata(encoder_, m, num_blocks);
  186. delete [] m;
  187. return ok;
  188. #else
  189. return (bool)::FLAC__seekable_stream_encoder_set_metadata(encoder_, m, num_blocks);
  190. #endif
  191. }
  193. SeekableStream::State SeekableStream::get_state() const
  194. {
  195. FLAC__ASSERT(is_valid());
  196. return State(::FLAC__seekable_stream_encoder_get_state(encoder_));
  197. }
  199. Stream::State SeekableStream::get_stream_encoder_state() const
  200. {
  201. FLAC__ASSERT(is_valid());
  202. return Stream::State(::FLAC__seekable_stream_encoder_get_stream_encoder_state(encoder_));
  203. }
  205. Decoder::Stream::State SeekableStream::get_verify_decoder_state() const
  206. {
  207. FLAC__ASSERT(is_valid());
  208. return Decoder::Stream::State(::FLAC__seekable_stream_encoder_get_verify_decoder_state(encoder_));
  209. }
  211. void SeekableStream::get_verify_decoder_error_stats(FLAC__uint64 *absolute_sample, unsigned *frame_number, unsigned *channel, unsigned *sample, FLAC__int32 *expected, FLAC__int32 *got)
  212. {
  213. FLAC__ASSERT(is_valid());
  214. ::FLAC__seekable_stream_encoder_get_verify_decoder_error_stats(encoder_, absolute_sample, frame_number, channel, sample, expected, got);
  215. }
  217. bool SeekableStream::get_verify() const
  218. {
  219. FLAC__ASSERT(is_valid());
  220. return (bool)::FLAC__seekable_stream_encoder_get_verify(encoder_);
  221. }
  223. bool SeekableStream::get_streamable_subset() const
  224. {
  225. FLAC__ASSERT(is_valid());
  226. return (bool)::FLAC__seekable_stream_encoder_get_streamable_subset(encoder_);
  227. }
  229. bool SeekableStream::get_do_mid_side_stereo() const
  230. {
  231. FLAC__ASSERT(is_valid());
  232. return (bool)::FLAC__seekable_stream_encoder_get_do_mid_side_stereo(encoder_);
  233. }
  235. bool SeekableStream::get_loose_mid_side_stereo() const
  236. {
  237. FLAC__ASSERT(is_valid());
  238. return (bool)::FLAC__seekable_stream_encoder_get_loose_mid_side_stereo(encoder_);
  239. }
  241. unsigned SeekableStream::get_channels() const
  242. {
  243. FLAC__ASSERT(is_valid());
  244. return ::FLAC__seekable_stream_encoder_get_channels(encoder_);
  245. }
  247. unsigned SeekableStream::get_bits_per_sample() const
  248. {
  249. FLAC__ASSERT(is_valid());
  250. return ::FLAC__seekable_stream_encoder_get_bits_per_sample(encoder_);
  251. }
  253. unsigned SeekableStream::get_sample_rate() const
  254. {
  255. FLAC__ASSERT(is_valid());
  256. return ::FLAC__seekable_stream_encoder_get_sample_rate(encoder_);
  257. }
  259. unsigned SeekableStream::get_blocksize() const
  260. {
  261. FLAC__ASSERT(is_valid());
  262. return ::FLAC__seekable_stream_encoder_get_blocksize(encoder_);
  263. }
  265. unsigned SeekableStream::get_max_lpc_order() const
  266. {
  267. FLAC__ASSERT(is_valid());
  268. return ::FLAC__seekable_stream_encoder_get_max_lpc_order(encoder_);
  269. }
  271. unsigned SeekableStream::get_qlp_coeff_precision() const
  272. {
  273. FLAC__ASSERT(is_valid());
  274. return ::FLAC__seekable_stream_encoder_get_qlp_coeff_precision(encoder_);
  275. }
  277. bool SeekableStream::get_do_qlp_coeff_prec_search() const
  278. {
  279. FLAC__ASSERT(is_valid());
  280. return (bool)::FLAC__seekable_stream_encoder_get_do_qlp_coeff_prec_search(encoder_);
  281. }
  283. bool SeekableStream::get_do_escape_coding() const
  284. {
  285. FLAC__ASSERT(is_valid());
  286. return (bool)::FLAC__seekable_stream_encoder_get_do_escape_coding(encoder_);
  287. }
  289. bool SeekableStream::get_do_exhaustive_model_search() const
  290. {
  291. FLAC__ASSERT(is_valid());
  292. return (bool)::FLAC__seekable_stream_encoder_get_do_exhaustive_model_search(encoder_);
  293. }
  295. unsigned SeekableStream::get_min_residual_partition_order() const
  296. {
  297. FLAC__ASSERT(is_valid());
  298. return ::FLAC__seekable_stream_encoder_get_min_residual_partition_order(encoder_);
  299. }
  301. unsigned SeekableStream::get_max_residual_partition_order() const
  302. {
  303. FLAC__ASSERT(is_valid());
  304. return ::FLAC__seekable_stream_encoder_get_max_residual_partition_order(encoder_);
  305. }
  307. unsigned SeekableStream::get_rice_parameter_search_dist() const
  308. {
  309. FLAC__ASSERT(is_valid());
  310. return ::FLAC__seekable_stream_encoder_get_rice_parameter_search_dist(encoder_);
  311. }
  313. FLAC__uint64 SeekableStream::get_total_samples_estimate() const
  314. {
  315. FLAC__ASSERT(is_valid());
  316. return ::FLAC__seekable_stream_encoder_get_total_samples_estimate(encoder_);
  317. }
  319. SeekableStream::State SeekableStream::init()
  320. {
  321. FLAC__ASSERT(is_valid());
  322. ::FLAC__seekable_stream_encoder_set_seek_callback(encoder_, seek_callback_);
  323. ::FLAC__seekable_stream_encoder_set_tell_callback(encoder_, tell_callback_);
  324. ::FLAC__seekable_stream_encoder_set_write_callback(encoder_, write_callback_);
  325. ::FLAC__seekable_stream_encoder_set_client_data(encoder_, (void*)this);
  326. return State(::FLAC__seekable_stream_encoder_init(encoder_));
  327. }
  329. void SeekableStream::finish()
  330. {
  331. FLAC__ASSERT(is_valid());
  332. ::FLAC__seekable_stream_encoder_finish(encoder_);
  333. }
  335. bool SeekableStream::process(const FLAC__int32 * const buffer[], unsigned samples)
  336. {
  337. FLAC__ASSERT(is_valid());
  338. return (bool)::FLAC__seekable_stream_encoder_process(encoder_, buffer, samples);
  339. }
  341. bool SeekableStream::process_interleaved(const FLAC__int32 buffer[], unsigned samples)
  342. {
  343. FLAC__ASSERT(is_valid());
  344. return (bool)::FLAC__seekable_stream_encoder_process_interleaved(encoder_, buffer, samples);
  345. }
  347. ::FLAC__SeekableStreamEncoderSeekStatus SeekableStream::seek_callback_(const ::FLAC__SeekableStreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data)
  348. {
  349. (void)encoder;
  350. FLAC__ASSERT(0 != client_data);
  351. SeekableStream *instance = reinterpret_cast<SeekableStream *>(client_data);
  352. FLAC__ASSERT(0 != instance);
  353. return instance->seek_callback(absolute_byte_offset);
  354. }
  356. ::FLAC__SeekableStreamEncoderTellStatus SeekableStream::tell_callback_(const ::FLAC__SeekableStreamEncoder *encoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
  357. {
  358. (void)encoder;
  359. FLAC__ASSERT(0 != client_data);
  360. SeekableStream *instance = reinterpret_cast<SeekableStream *>(client_data);
  361. FLAC__ASSERT(0 != instance);
  362. return instance->tell_callback(absolute_byte_offset);
  363. }
  365. ::FLAC__StreamEncoderWriteStatus SeekableStream::write_callback_(const ::FLAC__SeekableStreamEncoder *encoder, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data)
  366. {
  367. (void)encoder;
  368. FLAC__ASSERT(0 != client_data);
  369. SeekableStream *instance = reinterpret_cast<SeekableStream *>(client_data);
  370. FLAC__ASSERT(0 != instance);
  371. return instance->write_callback(buffer, bytes, samples, current_frame);
  372. }
  374. }
  375. }