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comparison foosdk/sdk/foobar2000/helpers/input_helpers.cpp @ 1:20d02a178406 default tip

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author Paper <paper@tflc.us>
date Mon, 05 Jan 2026 02:15:46 -0500
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0:e9bb126753e7 1:20d02a178406
1 #include "StdAfx.h"
2
3 #include "input_helpers.h"
4 #include "fullFileBuffer.h"
5 #include "file_list_helper.h"
6 #include "fileReadAhead.h"
7 #include <SDK/file_info_impl.h>
8 #include "readers_lite.h"
9
10 #define LOCAL_DEBUG_PRINT(...) // PFC_DEBUG_PRINT(__VA_ARGS__)
11
12 #define FILE_DECODEDAUDIO_PRINT(...) LOCAL_DEBUG_PRINT("file_decodeaudio(", pfc::format_ptr(this), "): ", __VA_ARGS__)
13
14 input_helper::ioFilter_t input_helper::ioFilter_full_buffer(t_filesize val) {
15 if (val == 0) return nullptr;
16 return [val] ( file_ptr & f, const char * path, abort_callback & aborter) {
17 if (!filesystem::g_is_remote_or_unrecognized(path)) {
18 if (f.is_empty()) filesystem::g_open_read(f, path, aborter);
19 if (!f->is_in_memory() && !f->is_remote() && f->can_seek() && f->get_size(aborter) <= val) {
20 try {
21 f = createFileMemMirrorAsync(f, nullptr, aborter);
22 return true;
23 } catch (std::bad_alloc const &) {} // keep orig file object
24 }
25 }
26 return false;
27 };
28 }
29
30 input_helper::ioFilter_t input_helper::ioFilter_block_buffer(size_t arg) {
31 if (arg == 0) return nullptr;
32
33 return [arg](file_ptr & p_file, const char * p_path, abort_callback & p_abort) {
34 if (!filesystem::g_is_remote_or_unrecognized(p_path)) {
35 if (p_file.is_empty()) filesystem::g_open_read(p_file, p_path, p_abort);
36 if (!p_file->is_in_memory() && !p_file->is_remote() && p_file->can_seek()) {
37 file_cached::g_create(p_file, p_file, p_abort, (size_t)arg);
38 return true;
39 }
40 }
41 return false;
42 };
43 }
44
45 static bool looksLikePlaylist(filesystem::ptr const& fs, const char* path) {
46 auto ext = fs->get_extension(path);
47 // match against common internet playlist extensions
48 // yes, this could query fb2k services instead, but uses a fixed list by design
49 for (auto walk : { "m3u", "pls", "m3u8", "asx" }) {
50 if (pfc::stringEqualsI_ascii(walk, ext)) return true;
51 }
52 return false;
53 }
54 static input_helper::ioFilter_t makeReadAhead(size_t arg, bool bRemote) {
55 if (arg == 0) return nullptr;
56
57 return [arg, bRemote](file_ptr & p_file, const char * p_path, abort_callback & p_abort) {
58 if (p_file.is_empty()) {
59 filesystem::ptr fs;
60 if (!filesystem::g_get_interface(fs, p_path)) return false;
61 if (bRemote != fs->is_remote(p_path)) return false;
62 if (looksLikePlaylist(fs, p_path)) return false;
63 fs->open(p_file, p_path, filesystem::open_mode_read, p_abort);
64 } else if (bRemote != p_file->is_remote()) return false;
65 if (p_file->is_in_memory()) return false;
66 p_file = fileCreateReadAhead(p_file, (size_t)arg, p_abort);
67 return true;
68 };
69 }
70
71 input_helper::ioFilter_t input_helper::ioFilter_remote_read_ahead(size_t arg) {
72 return makeReadAhead(arg, true);
73 }
74
75 input_helper::ioFilter_t input_helper::ioFilter_local_read_ahead(size_t arg) {
76 return makeReadAhead(arg, false);
77 }
78
79 void input_helper::open(trackRef location, abort_callback & abort, decodeOpen_t const & other) {
80 this->open( trackGetLocation(location), abort, other);
81 }
82
83 void input_helper::open(service_ptr_t<file> p_filehint,trackRef p_location,unsigned p_flags,abort_callback & p_abort,bool p_from_redirect,bool p_skip_hints)
84 {
85 open(p_filehint,trackGetLocation( p_location ),p_flags,p_abort,p_from_redirect,p_skip_hints);
86 }
87
88 bool input_helper::test_if_lockless(abort_callback& a) {
89 if (m_file_in_memory || extended_param(input_params::is_tag_write_safe) != 0) return true;
90
91 #if 0
92 // doesn't work with current components because they don't support seeking_expensive either
93 if (extended_param(input_params::seeking_expensive)) {
94 // could be that the decoder doesn't understand is_tag_write_safe
95 if (matchProtocol("file", m_path)) {
96 try {
97 fileOpenWriteExisting(m_path, a);
98 return true;
99 } catch (exception_io const &) {}
100 }
101 }
102 #endif
103 return false;
104 }
105 void input_helper::fileOpenTools(service_ptr_t<file> & p_file,const char * p_path,input_helper::ioFilters_t const & filters, abort_callback & p_abort) {
106 for( auto & f : filters ) {
107 if (f) {
108 if (f(p_file, p_path, p_abort)) break;
109 }
110 }
111 }
112
113 bool input_helper::need_file_reopen(const char * newPath) const {
114 return m_input.is_empty() || playable_location::path_compare(m_path, newPath) != 0;
115 }
116
117 bool input_helper::open_path(const char * path, abort_callback & abort, decodeOpen_t const & other) {
118 abort.check();
119
120 m_logger = other.m_logger;
121
122 if (!need_file_reopen(path)) {
123 if ( other.m_logger.is_valid() ) {
124 input_decoder_v2::ptr v2;
125 if (m_input->service_query_t(v2)) v2->set_logger(other.m_logger);
126 }
127 return false;
128 }
129 m_input.release();
130
131 service_ptr_t<file> l_file = other.m_hint;
132 fileOpenTools(l_file, path, other.m_ioFilters, abort);
133
134 m_file_in_memory = l_file.is_valid() && l_file->is_in_memory();
135
136 TRACK_CODE("input_entry::g_open_for_decoding",
137 m_input ^= input_entry::g_open(input_decoder::class_guid, l_file, path, m_logger, abort, other.m_from_redirect );
138 );
139
140 if (!other.m_skip_hints) {
141 try {
142 if ( other.m_infoHook ) {
143 other.m_infoHook( m_input, path, abort );
144 }
145 #ifdef FOOBAR2000_HAVE_METADB
146 metadb_io::get()->hint_reader(m_input.get_ptr(), path, abort);
147 #endif
148 }
149 catch (exception_io_data const &) {
150 //Don't fail to decode when this barfs, might be barfing when reading info from another subsong than the one we're trying to decode etc.
151 m_input.release();
152 if (l_file.is_valid()) l_file->reopen(abort);
153 TRACK_CODE("input_entry::g_open_for_decoding",
154 m_input ^= input_entry::g_open(input_decoder::class_guid, l_file, path, m_logger, abort, other.m_from_redirect);
155 );
156 }
157 }
158
159 if (other.m_shim) m_input = other.m_shim(m_input, path, abort);
160
161 m_path = path;
162 return true;
163 }
164
165 void input_helper::open_decoding(t_uint32 subsong, t_uint32 flags, abort_callback & p_abort) {
166 TRACK_CODE("input_decoder::initialize", m_input->initialize(subsong, flags, p_abort));
167 }
168
169 void input_helper::open(const playable_location & location, abort_callback & abort, decodeOpen_t const & other) {
170 open_path(location.get_path(), abort, other);
171
172 if (other.m_setSampleRate != 0) {
173 this->extended_param(input_params::set_preferred_sample_rate, other.m_setSampleRate, nullptr, 0);
174 }
175
176 open_decoding(location.get_subsong(), other.m_flags, abort);
177 }
178
179 void input_helper::attach(input_decoder::ptr dec, const char * path) {
180 m_input = dec;
181 m_path = path;
182 }
183
184 void input_helper::open(service_ptr_t<file> p_filehint, const playable_location & p_location, unsigned p_flags, abort_callback & p_abort, bool p_from_redirect, bool p_skip_hints) {
185 decodeOpen_t o;
186 o.m_hint = p_filehint;
187 o.m_flags = p_flags;
188 o.m_from_redirect = p_from_redirect;
189 o.m_skip_hints = p_skip_hints;
190 this->open(p_location, p_abort, o);
191 }
192
193
194 void input_helper::close() {
195 m_input.release();
196 }
197
198 bool input_helper::is_open() {
199 return m_input.is_valid();
200 }
201
202 void input_helper::set_pause(bool state) {
203 input_decoder_v3::ptr v3;
204 if (m_input->service_query_t(v3)) v3->set_pause(state);
205 }
206 bool input_helper::flush_on_pause() {
207 input_decoder_v3::ptr v3;
208 if (m_input->service_query_t(v3)) return v3->flush_on_pause();
209 else return false;
210 }
211
212
213 void input_helper::set_logger(event_logger::ptr ptr) {
214 m_logger = ptr;
215 input_decoder_v2::ptr v2;
216 if (m_input->service_query_t(v2)) v2->set_logger(ptr);
217 }
218
219 bool input_helper::run_raw_v2(audio_chunk& p_chunk, mem_block_container& p_raw, uint32_t knownBPS,abort_callback& p_abort) {
220 PFC_ASSERT(knownBPS >= 8 && knownBPS <= 32);
221 input_decoder_v2::ptr v2;
222 if (v2 &= m_input) {
223 try {
224 return v2->run_raw(p_chunk, p_raw, p_abort);
225 // UGLY: it may STILL FAIL with exception_not_implemented due to some underlying code not being able to handle the request!!
226 } catch (pfc::exception_not_implemented const &) {}
227 }
228 if (!m_input->run(p_chunk, p_abort)) return false;
229
230 uint32_t pad = knownBPS + 7; pad -= pad % 8;
231 p_chunk.toFixedPoint(p_raw, pad, knownBPS);
232 return true;
233 }
234
235 bool input_helper::run_raw(audio_chunk & p_chunk, mem_block_container & p_raw, abort_callback & p_abort) {
236 input_decoder_v2::ptr v2;
237 if (!m_input->service_query_t(v2)) throw pfc::exception_not_implemented();
238 return v2->run_raw(p_chunk, p_raw, p_abort);
239 }
240
241 bool input_helper::run(audio_chunk & p_chunk, abort_callback & p_abort) {
242 TRACK_CODE("input_decoder::run", return m_input->run(p_chunk, p_abort));
243 }
244
245 void input_helper::seek(double seconds, abort_callback & p_abort) {
246 TRACK_CODE("input_decoder::seek", m_input->seek(seconds, p_abort));
247 }
248
249 bool input_helper::can_seek() {
250 return m_input->can_seek();
251 }
252
253 bool input_helper::query_position( double & val ) {
254 return extended_param(input_params::query_position, 0, &val, sizeof(val) ) != 0;
255 }
256
257 size_t input_helper::extended_param(const GUID & type, size_t arg1, void * arg2, size_t arg2size) {
258 input_decoder_v4::ptr v4;
259 if (v4 &= m_input) {
260 return v4->extended_param(type, arg1, arg2, arg2size);
261 }
262 return 0;
263 }
264 input_helper::decodeInfo_t input_helper::decode_info() {
265 decodeInfo_t ret = {};
266 if (m_input.is_valid()) {
267 ret.m_can_seek = can_seek();
268 ret.m_flush_on_pause = flush_on_pause();
269 if (ret.m_can_seek) {
270 ret.m_seeking_expensive = extended_param(input_params::seeking_expensive, 0, nullptr, 0) != 0;
271 }
272 }
273 return ret;
274 }
275
276 void input_helper::on_idle(abort_callback & p_abort) {
277 if (m_input.is_valid()) {
278 TRACK_CODE("input_decoder::on_idle",m_input->on_idle(p_abort));
279 }
280 }
281
282 bool input_helper::get_dynamic_info(file_info & p_out,double & p_timestamp_delta) {
283 TRACK_CODE("input_decoder::get_dynamic_info",return m_input->get_dynamic_info(p_out,p_timestamp_delta));
284 }
285
286 bool input_helper::get_dynamic_info_track(file_info & p_out,double & p_timestamp_delta) {
287 TRACK_CODE("input_decoder::get_dynamic_info_track",return m_input->get_dynamic_info_track(p_out,p_timestamp_delta));
288 }
289
290 void input_helper::get_info(t_uint32 p_subsong,file_info & p_info,abort_callback & p_abort) {
291 TRACK_CODE("input_decoder::get_info",m_input->get_info(p_subsong,p_info,p_abort));
292 }
293
294 const char * input_helper::get_path() const {
295 return m_path;
296 }
297
298
299 input_helper::input_helper()
300 {
301 }
302
303
304 void input_helper::g_get_info(const playable_location & p_location,file_info & p_info,abort_callback & p_abort,bool p_from_redirect) {
305 service_ptr_t<input_info_reader> instance;
306 input_entry::g_open_for_info_read(instance,0,p_location.get_path(),p_abort,p_from_redirect);
307 instance->get_info(p_location.get_subsong_index(),p_info,p_abort);
308 }
309
310 void input_helper::g_set_info(const playable_location & p_location,file_info & p_info,abort_callback & p_abort,bool p_from_redirect) {
311 service_ptr_t<input_info_writer> instance;
312 input_entry::g_open_for_info_write(instance,0,p_location.get_path(),p_abort,p_from_redirect);
313 instance->set_info(p_location.get_subsong_index(),p_info,p_abort);
314 instance->commit(p_abort);
315 }
316
317 #ifdef FOOBAR2000_HAVE_METADB
318 bool dead_item_filter::run(const pfc::list_base_const_t<metadb_handle_ptr> & p_list,bit_array_var & p_mask) {
319 file_list_helper::file_list_from_metadb_handle_list path_list;
320 path_list.init_from_list(p_list);
321 metadb_handle_list valid_handles;
322 auto l_metadb = metadb::get();
323 for(t_size pathidx=0;pathidx<path_list.get_count();pathidx++)
324 {
325 if (is_aborting()) return false;
326 on_progress(pathidx,path_list.get_count());
327
328 const char * path = path_list[pathidx];
329
330 if (filesystem::g_is_remote_safe(path)) {
331 metadb_handle_ptr temp;
332 l_metadb->handle_create(temp,make_playable_location(path,0));
333 valid_handles.add_item(temp);
334 } else {
335 try {
336 service_ptr_t<input_info_reader> reader;
337
338 input_entry::g_open_for_info_read(reader,0,path,*this);
339 t_uint32 count = reader->get_subsong_count();
340 for(t_uint32 n=0;n<count && !is_aborting();n++) {
341 metadb_handle_ptr ptr;
342 t_uint32 index = reader->get_subsong(n);
343 l_metadb->handle_create(ptr,make_playable_location(path,index));
344 valid_handles.add_item(ptr);
345 }
346 } catch(...) {}
347 }
348 }
349
350 if (is_aborting()) return false;
351
352 valid_handles.sort_by_pointer();
353 for(t_size listidx=0;listidx<p_list.get_count();listidx++) {
354 bool dead = valid_handles.bsearch_by_pointer(p_list[listidx]) == ~0;
355 if (dead) FB2K_console_formatter() << "Dead item: " << p_list[listidx];
356 p_mask.set(listidx,dead);
357 }
358 return !is_aborting();
359 }
360
361 namespace {
362
363 class dead_item_filter_impl_simple : public dead_item_filter
364 {
365 public:
366 inline dead_item_filter_impl_simple(abort_callback & p_abort) : m_abort(p_abort) {}
367 bool is_aborting() const {return m_abort.is_aborting();}
368 abort_callback_event get_abort_event() const {return m_abort.get_abort_event();}
369 void on_progress(t_size p_position,t_size p_total) {}
370 private:
371 abort_callback & m_abort;
372 };
373
374 }
375
376 bool input_helper::g_mark_dead(const pfc::list_base_const_t<metadb_handle_ptr> & p_list,bit_array_var & p_mask,abort_callback & p_abort)
377 {
378 dead_item_filter_impl_simple filter(p_abort);
379 return filter.run(p_list,p_mask);
380 }
381
382 #endif // #ifdef FOOBAR2000_HAVE_METADB
383
384 void input_info_read_helper::open(const char * p_path,abort_callback & p_abort) {
385 if (m_input.is_empty() || playable_location::path_compare(m_path,p_path) != 0)
386 {
387 TRACK_CODE("input_entry::g_open_for_info_read",input_entry::g_open_for_info_read(m_input,0,p_path,p_abort));
388
389 m_path = p_path;
390 }
391 }
392
393 void input_info_read_helper::get_info(const playable_location & p_location,file_info & p_info,t_filestats & p_stats,abort_callback & p_abort) {
394 open(p_location.get_path(),p_abort);
395
396 TRACK_CODE("input_info_reader::get_file_stats",p_stats = m_input->get_file_stats(p_abort));
397
398 TRACK_CODE("input_info_reader::get_info",m_input->get_info(p_location.get_subsong_index(),p_info,p_abort));
399 }
400
401 #ifdef FOOBAR2000_HAVE_METADB
402 void input_info_read_helper::get_info_check(const playable_location & p_location,file_info & p_info,t_filestats & p_stats,bool & p_reloaded,abort_callback & p_abort) {
403 open(p_location.get_path(),p_abort);
404 t_filestats newstats;
405 TRACK_CODE("input_info_reader::get_file_stats",newstats = m_input->get_file_stats(p_abort));
406 if (metadb_handle::g_should_reload(p_stats,newstats,true)) {
407 p_stats = newstats;
408 TRACK_CODE("input_info_reader::get_info",m_input->get_info(p_location.get_subsong_index(),p_info,p_abort));
409 p_reloaded = true;
410 } else {
411 p_reloaded = false;
412 }
413 }
414 #endif // #ifdef FOOBAR2000_HAVE_METADB
415
416 // openAudioData code
417
418 static constexpr openAudioDataFormat formatNative = (sizeof(audio_sample) == sizeof(double)) ? openAudioDataFormat::float64 : openAudioDataFormat::float32;
419
420 namespace {
421
422 class file_decodedaudio : public file_readonly {
423 public:
424 void init(const playable_location & loc, input_helper::decodeOpen_t const & arg, openAudioDataFormat format, abort_callback & aborter) {
425 FILE_DECODEDAUDIO_PRINT("opening: ", loc );
426 m_length = -1; m_lengthKnown = false;
427 m_format = format;
428 m_subsong = loc.get_subsong();
429 m_decoder ^= input_entry::g_open( input_decoder::class_guid, arg.m_hint, loc.get_path(), arg.m_logger, aborter, arg.m_from_redirect);
430 m_seekable = ( arg.m_flags & input_flag_no_seeking ) == 0 && m_decoder->can_seek();
431 m_flags = arg.m_flags;
432 reopenDecoder(aborter);
433 readChunk(aborter, true);
434 }
435 void init(const playable_location & loc, bool bSeekable, file::ptr fileHint, abort_callback & aborter) {
436 FILE_DECODEDAUDIO_PRINT("opening: ", loc);
437 m_length = -1; m_lengthKnown = false;
438 m_subsong = loc.get_subsong();
439 input_entry::g_open_for_decoding(m_decoder, fileHint, loc.get_path(), aborter);
440 m_seekable = bSeekable && m_decoder->can_seek();
441 reopenDecoder(aborter);
442 readChunk(aborter, true);
443 }
444
445 void reopen(abort_callback & aborter) override {
446
447 // Have valid chunk and it is the first chunk in the stream? Reset read pointers and bail, no need to reopen
448 if (m_chunk.get_sample_count() > 0 && m_chunkBytesPtr == m_currentPosition) {
449 m_currentPosition = 0;
450 m_chunkBytesPtr = 0;
451 m_eof = false;
452 return;
453 }
454
455 reopenDecoder(aborter);
456 readChunk(aborter);
457 }
458
459 bool is_remote() override {
460 return false;
461 }
462 t_filetimestamp get_timestamp(abort_callback & p_abort) override {
463 return m_decoder->get_file_stats(p_abort).m_timestamp;
464 }
465 void on_idle(abort_callback & p_abort) override {
466 m_decoder->on_idle(p_abort);
467 }
468 bool get_content_type(pfc::string_base & p_out) override {
469 return false;
470 }
471 bool can_seek() override {
472 return m_seekable;
473 }
474 void seek(t_filesize p_position, abort_callback & p_abort) override {
475 if (!m_seekable) throw exception_io_object_not_seekable();
476
477
478 {
479 t_filesize chunkBegin = m_currentPosition - m_chunkBytesPtr;
480 t_filesize chunkEnd = chunkBegin + curChunkBytes();
481 if (p_position >= chunkBegin && p_position < chunkEnd) {
482 m_chunkBytesPtr = (size_t)(p_position - chunkBegin);
483 m_currentPosition = p_position;
484 m_eof = false;
485 return;
486 }
487 }
488
489 {
490 t_filesize s = get_size(p_abort);
491 if (s != filesize_invalid) {
492 if (p_position > s) throw exception_io_seek_out_of_range();
493 if (p_position == s) {
494 m_chunk.reset(); m_curChunkBytes = 0; m_chunkBytesPtr = 0;
495 m_currentPosition = p_position;
496 m_eof = true;
497 return;
498 }
499 }
500 }
501
502
503
504 const auto row = m_spec.chanCount * sampleBytes();
505 t_filesize samples = p_position / row;
506 const double seekTime = audio_math::samples_to_time(samples, m_spec.sampleRate);
507 m_decoder->seek(seekTime, p_abort);
508 m_eof = false; // do this before readChunk
509 if (!this->readChunk(p_abort)) {
510 throw std::runtime_error( ( PFC_string_formatter() << "Premature EOF in referenced audio file at " << pfc::format_time_ex(seekTime, 6) << " out of " << pfc::format_time_ex(length(p_abort), 6) ).get_ptr() );
511 }
512 m_chunkBytesPtr = p_position % row;
513 if (m_chunkBytesPtr > curChunkBytes()) {
514 // Should not ever happen
515 m_chunkBytesPtr = 0;
516 throw std::runtime_error("Decoder returned invalid data");
517 }
518
519 m_currentPosition = p_position;
520 m_eof = false;
521 }
522
523 t_filesize get_size(abort_callback & aborter) override {
524 const double l = length(aborter);
525 if (l <= 0) return filesize_invalid;
526 return audio_math::time_to_samples(l, m_spec.sampleRate) * m_spec.chanCount * sampleBytes();
527 }
528 t_filesize get_position(abort_callback & p_abort) override {
529 return m_currentPosition;
530 }
531 t_size read(void * p_buffer, t_size p_bytes, abort_callback & p_abort) override {
532 FILE_DECODEDAUDIO_PRINT("read(", p_bytes, ")");
533 size_t done = 0;
534 for (;;) {
535 p_abort.check();
536 {
537 const size_t inChunk = curChunkBytes();
538 const size_t inChunkRemaining = inChunk - m_chunkBytesPtr;
539 const size_t delta = pfc::min_t<size_t>(inChunkRemaining, (p_bytes - done));
540 memcpy((uint8_t*)p_buffer + done, (const uint8_t*)m_curChunkPtr + m_chunkBytesPtr, delta);
541 m_chunkBytesPtr += delta;
542 done += delta;
543 m_currentPosition += delta;
544
545 if (done == p_bytes) break;
546 }
547 if (!readChunk(p_abort)) break;
548 }
549 FILE_DECODEDAUDIO_PRINT("read(", p_bytes, ") returning ", done);
550 return done;
551 }
552 audio_chunk::spec_t const & get_spec() const { return m_spec; }
553 private:
554 void reopenDecoder(abort_callback & aborter) {
555 uint32_t flags = m_flags | input_flag_no_looping;
556 if (!m_seekable) flags |= input_flag_no_seeking;
557
558 m_decoder->initialize(m_subsong, flags, aborter);
559 m_eof = false;
560 m_currentPosition = 0;
561 }
562 size_t curChunkBytes() const {
563 return m_curChunkBytes;
564 }
565 bool readChunk(abort_callback & aborter, bool initial = false) {
566 m_chunkBytesPtr = 0;
567 FILE_DECODEDAUDIO_PRINT("readChunk()");
568 for (;;) {
569 if (m_eof || !m_decoder->run(m_chunk, aborter)) {
570 if (initial) throw std::runtime_error("Decoder produced no data");
571 m_eof = true;
572 m_chunk.reset(); m_curChunkBytes = 0;
573 FILE_DECODEDAUDIO_PRINT("readChunk() EOF");
574 return false;
575 }
576 if (m_chunk.is_valid()) break;
577 }
578 PFC_ASSERT(m_chunk.get_peak() < 100);
579 audio_chunk::spec_t spec = m_chunk.get_spec();
580 if (initial) m_spec = spec;
581 else if (m_spec != spec) throw std::runtime_error("Sample format change in mid stream");
582
583 auto inPtr = m_chunk.get_data();
584 const size_t inCount = m_chunk.get_used_size();
585 m_curChunkBytes = inCount * sampleBytes();
586 FILE_DECODEDAUDIO_PRINT("readChunk(): ", m_chunk.get_sample_count(), " samples, ", m_curChunkBytes, " bytes");
587 if ( m_format == formatNative ) {
588 m_curChunkPtr = inPtr;
589 } else {
590 m_altFormatBuffer.grow_size(m_curChunkBytes);
591 m_curChunkPtr = m_altFormatBuffer.get_ptr();
592 switch (m_format) {
593 case openAudioDataFormat::float32:
594 { auto out = reinterpret_cast<float*>(m_curChunkPtr); for (size_t walk = 0; walk < inCount; ++walk) out[walk] = (float)inPtr[walk]; }
595 break;
596 case openAudioDataFormat::float64:
597 { auto out = reinterpret_cast<double*>(m_curChunkPtr); for (size_t walk = 0; walk < inCount; ++walk) out[walk] = (double)inPtr[walk]; }
598 break;
599 default:
600 PFC_ASSERT(!"???");
601 }
602 }
603
604 return true;
605 }
606 double length(abort_callback & aborter) {
607 if (!m_lengthKnown) {
608 file_info_impl temp;
609 m_decoder->get_info(m_subsong, temp, aborter);
610 m_length = temp.get_length();
611 m_lengthKnown = true;
612 }
613 return m_length;
614 }
615 unsigned sampleBytes() const {
616 return m_format == openAudioDataFormat::float32 ? 4 : 8;
617 }
618 audio_chunk_fast_impl m_chunk;
619 size_t m_chunkBytesPtr;
620 audio_chunk::spec_t m_spec;
621 double m_length;
622 bool m_lengthKnown;
623 bool m_seekable;
624 uint32_t m_subsong;
625 input_decoder::ptr m_decoder;
626 bool m_eof;
627 t_filesize m_currentPosition;
628 unsigned m_flags = 0;
629 openAudioDataFormat m_format = formatNative;
630
631 pfc::array_t<uint8_t> m_altFormatBuffer;
632 void* m_curChunkPtr = nullptr;
633 size_t m_curChunkBytes = 0;
634 };
635
636 }
637
638 openAudioData_t openAudioData3(playable_location const& loc, input_helper::decodeOpen_t const& openArg, openAudioDataFormat format, abort_callback& aborter) {
639 service_ptr_t<file_decodedaudio> f; f = new service_impl_t < file_decodedaudio >;
640 f->init(loc, openArg, format, aborter);
641
642 openAudioData_t oad = {};
643 oad.audioData = f;
644 oad.audioSpec = f->get_spec();
645 return oad;
646 }
647
648 openAudioData_t openAudioData2(playable_location const & loc, input_helper::decodeOpen_t const & openArg, abort_callback & aborter) {
649 return openAudioData3(loc, openArg, formatNative, aborter);
650 }
651
652 openAudioData_t openAudioData(playable_location const & loc, bool bSeekable, file::ptr fileHint, abort_callback & aborter) {
653 service_ptr_t<file_decodedaudio> f; f = new service_impl_t < file_decodedaudio > ;
654 f->init(loc, bSeekable, fileHint, aborter);
655
656 openAudioData_t oad = {};
657 oad.audioData = f;
658 oad.audioSpec = f->get_spec();
659 return oad;
660 }