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

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*: check in everything else yay
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 <vector>
4
5 #ifndef _WIN32
6 #include "winmm-types.h"
7 #endif
8
9 #include "writer_wav.h"
10
11 #include "audio_render_float.h"
12
13 static const GUID guid_RIFF = pfc::GUID_from_text("66666972-912E-11CF-A5D6-28DB04C10000");
14 static const GUID guid_WAVE = pfc::GUID_from_text("65766177-ACF3-11D3-8CD1-00C04F8EDB8A");
15 static const GUID guid_FMT = pfc::GUID_from_text("20746D66-ACF3-11D3-8CD1-00C04F8EDB8A");
16 static const GUID guid_DATA = pfc::GUID_from_text("61746164-ACF3-11D3-8CD1-00C04F8EDB8A");
17 static const GUID guid_JUNK = pfc::GUID_from_text("6b6E756A-ACF3-11D3-8CD1-00C04f8EDB8A");
18
19 struct RIFF_chunk_desc {
20 GUID m_guid;
21 const char * m_name;
22 };
23
24 static const RIFF_chunk_desc RIFF_chunks[] = {
25 {guid_RIFF, "RIFF"},
26 {guid_WAVE, "WAVE"},
27 {guid_FMT , "fmt "},
28 {guid_DATA, "data"},
29 {guid_JUNK, "JUNK"},
30 };
31
32 bool wavWriterSetup_t::needWFXE() const {
33 if (this->m_bpsValid != this->m_bps) return true;
34 switch(m_channels)
35 {
36 case 1:
37 return m_channel_mask != audio_chunk::channel_config_mono;
38 case 2:
39 return m_channel_mask != audio_chunk::channel_config_stereo;
40 /* case 4:
41 m_wfxe = m_setup.m_channel_mask != (audio_chunk::channel_front_left | audio_chunk::channel_front_right | audio_chunk::channel_back_left | audio_chunk::channel_back_right);
42 break;
43 case 6:
44 m_wfxe = m_setup.m_channel_mask != audio_chunk::channel_config_5point1;
45 break;*/
46 default:
47 return true;
48 }
49
50 }
51
52 void wavWriterSetup_t::initialize3(const audio_chunk::spec_t & spec, unsigned bps, unsigned bpsValid, bool bFloat, bool bDither, bool bWave64) {
53 m_bps = bps;
54 m_bpsValid = bpsValid;
55 m_samplerate = spec.sampleRate;
56 m_channels = spec.chanCount;
57 m_channel_mask = spec.chanMask;
58 m_float = bFloat;
59 m_dither = bDither;
60 m_wave64 = bWave64;
61
62 m_rf64_explicit = false;
63 m_rf64_implicit = false;
64 }
65
66 void wavWriterSetup_t::initialize2(const audio_chunk & p_chunk, unsigned p_bps, unsigned p_bpsValid, bool p_float, bool p_dither, bool p_wave64) {
67 initialize3(p_chunk.get_spec(), p_bps, p_bpsValid, p_float, p_dither, p_wave64);
68 }
69
70 void wavWriterSetup_t::initialize(const audio_chunk & p_chunk, unsigned p_bps, bool p_float, bool p_dither, bool p_wave64)
71 {
72 unsigned bpsValid = p_bps;
73 unsigned bps = (p_bps + 7) & ~7;
74 initialize2(p_chunk, bps, bpsValid, p_float, p_dither, p_wave64);
75 }
76
77 void wavWriterSetup_t::setup_wfx(WAVEFORMATEX & p_wfx)
78 {
79 p_wfx.wFormatTag = m_float ? WAVE_FORMAT_IEEE_FLOAT : WAVE_FORMAT_PCM;
80 p_wfx.nChannels = m_channels;
81 p_wfx.nSamplesPerSec = m_samplerate;
82 p_wfx.nAvgBytesPerSec = (m_bps >> 3) * m_channels * m_samplerate;
83 p_wfx.nBlockAlign = (m_bps>>3) * m_channels;
84 p_wfx.wBitsPerSample = m_bps;
85 p_wfx.cbSize = 0;
86 }
87
88 void wavWriterSetup_t::setup_wfxe(WAVEFORMATEXTENSIBLE & p_wfxe)
89 {
90 setup_wfx(p_wfxe.Format);
91 p_wfxe.Format.wFormatTag=WAVE_FORMAT_EXTENSIBLE;
92 p_wfxe.Format.cbSize=22;
93 p_wfxe.Samples.wValidBitsPerSample = this->m_bpsValid;
94 p_wfxe.dwChannelMask = audio_chunk::g_channel_config_to_wfx(m_channel_mask);
95 p_wfxe.SubFormat = m_float ? KSDATAFORMAT_SUBTYPE_IEEE_FLOAT : KSDATAFORMAT_SUBTYPE_PCM;
96
97 }
98
99 void CWavWriter::writeID(const GUID & id, abort_callback & abort) {
100 if (is64()) {
101 m_file->write_object_t(id, abort);
102 } else {
103 for( auto & walk : RIFF_chunks) {
104 if (id == walk.m_guid) {
105 m_file->write(walk.m_name, 4, abort); return;
106 }
107 }
108 uBugCheck();
109 }
110 }
111
112 void CWavWriter::writeSize(t_uint64 size, abort_callback & abort) {
113 if (is64()) {
114 if (size != UINT64_MAX) size += 24;
115 m_file->write_lendian_t(size, abort);
116 } else {
117 t_uint32 clipped;
118 if (size > UINT32_MAX) clipped = UINT32_MAX;
119 else clipped = (t_uint32) size;
120 m_file->write_lendian_t(clipped, abort);
121 }
122 }
123
124 size_t CWavWriter::align(abort_callback & abort) {
125 t_uint8 dummy[8] = {};
126 const t_uint32 val = is64() ? 8 : 2;
127 t_filesize pos = m_file->get_position(abort);
128 t_size delta = (val - (pos%val)) % val;
129 if (delta > 0) m_file->write(dummy, delta, abort);
130 return delta;
131 }
132
133 void CWavWriter::open(const char * p_path, const wavWriterSetup_t & p_setup, abort_callback & p_abort)
134 {
135 service_ptr_t<file> l_file;
136 filesystem::g_open_write_new(l_file,p_path,p_abort);
137 open(l_file,p_setup,p_abort);
138 }
139
140 namespace {
141 PFC_DECLARE_EXCEPTION(exceptionBadBitDepth, exception_io_data, "Invalid bit depth specified");
142 }
143 void CWavWriter::open(service_ptr_t<file> p_file, const wavWriterSetup_t & p_setup, abort_callback & p_abort)
144 {
145 m_file = p_file;
146 m_setup = p_setup;
147
148 if (m_setup.m_channels == 0 || m_setup.m_channels > 18 || m_setup.m_channels != audio_chunk::g_count_channels(m_setup.m_channel_mask)) throw exception_io_data();
149
150 if (!audio_chunk::g_is_valid_sample_rate(m_setup.m_samplerate)) throw exception_io_data();
151
152 if (m_setup.m_bpsValid > m_setup.m_bps) throw exceptionBadBitDepth();
153
154 if (m_setup.m_float)
155 {
156 if (m_setup.m_bps != 32 && m_setup.m_bps != 64) throw exceptionBadBitDepth();
157 if (m_setup.m_bpsValid != m_setup.m_bps) throw exceptionBadBitDepth();
158 }
159 else
160 {
161 if (m_setup.m_bps != 8 && m_setup.m_bps != 16 && m_setup.m_bps != 24 && m_setup.m_bps != 32) throw exceptionBadBitDepth();
162 if (m_setup.m_bpsValid < 1) throw exceptionBadBitDepth();
163 }
164
165 m_wfxe = m_setup.needWFXE();
166
167 if (m_setup.m_wave64) {
168 m_file->write_object_t(guid_RIFF, p_abort);
169 } else if (m_setup.m_rf64_explicit) {
170 m_file->write("RF64", 4, p_abort);
171 } else {
172 m_file->write("RIFF", 4, p_abort);
173 }
174
175 m_offset_fix1 = m_file->get_position(p_abort);
176 writeSize(UINT64_MAX, p_abort);
177
178 writeID(guid_WAVE, p_abort);
179
180 if (!is64() && m_file->can_seek() && (m_setup.m_rf64_explicit || m_setup.m_rf64_implicit)) {
181 // write JUNK placeholder for DS64
182 m_ds64_at = m_file->get_position(p_abort);
183 static const uint8_t dummy[28] = {}; // riffsize64, datasize64, samplecount64, tablecount32
184 writeID(guid_JUNK, p_abort);
185 writeSize(sizeof(dummy), p_abort);
186 m_file->write_object(dummy, sizeof(dummy), p_abort);
187 }
188
189
190 writeID(guid_FMT, p_abort);
191 if (m_wfxe) {
192 writeSize(sizeof(WAVEFORMATEXTENSIBLE),p_abort);
193
194 WAVEFORMATEXTENSIBLE wfxe = {};
195 m_setup.setup_wfxe(wfxe);
196 m_file->write_object(&wfxe,sizeof(wfxe),p_abort);
197 } else {
198 writeSize(sizeof(PCMWAVEFORMAT),p_abort);
199
200 WAVEFORMATEX wfx = {};
201 m_setup.setup_wfx(wfx);
202 m_file->write_object(&wfx,/* blah */ sizeof(PCMWAVEFORMAT),p_abort);
203 }
204 align(p_abort);
205
206 writeID(guid_DATA, p_abort);
207 m_offset_fix2 = m_file->get_position(p_abort);
208 writeSize(UINT64_MAX, p_abort);
209 m_offset_fix1_delta = m_file->get_position(p_abort) - chunkOverhead();
210
211 m_bytes_written = 0;
212
213 if (!m_setup.m_float)
214 {
215 m_postprocessor = standard_api_create_t<audio_postprocessor>();
216 }
217 }
218
219 void CWavWriter::write_raw( const void * raw, size_t rawSize, abort_callback & p_abort ) {
220 m_file->write_object(raw,rawSize,p_abort);
221 m_bytes_written += rawSize;
222 }
223
224 void CWavWriter::write(const audio_chunk & p_chunk, abort_callback & p_abort)
225 {
226 if (p_chunk.get_channels() != m_setup.m_channels
227 || p_chunk.get_channel_config() != m_setup.m_channel_mask
228 || p_chunk.get_srate() != m_setup.m_samplerate
229 ) throw exception_unexpected_audio_format_change();
230
231
232 if (m_setup.m_float)
233 {
234 const size_t count = p_chunk.get_channels() * p_chunk.get_sample_count();
235 const void* data = render_float_by_bps(m_setup.m_bps, m_postprocessor_output, p_chunk.get_data(), count);
236 write_raw(data, count * m_setup.m_bps / 8, p_abort);
237 }
238 else
239 {
240 m_postprocessor->run(p_chunk,m_postprocessor_output,m_setup.m_bpsValid,m_setup.m_bps,m_setup.m_dither,1.0f);
241 write_raw( m_postprocessor_output.get_ptr(),m_postprocessor_output.get_size(), p_abort );
242 }
243 }
244
245 void CWavWriter::finalize(abort_callback & p_abort)
246 {
247 if (m_file.is_valid())
248 {
249 const size_t alignG = align(p_abort);
250
251 if (m_file->can_seek()) {
252 m_file->seek(m_offset_fix1,p_abort);
253 const uint64_t riffSize = m_bytes_written + alignG + m_offset_fix1_delta;
254 writeSize(riffSize, p_abort);
255 m_file->seek(m_offset_fix2,p_abort);
256 writeSize(m_bytes_written, p_abort);
257
258 if (!is64() && (m_setup.m_rf64_explicit || (m_setup.m_rf64_implicit && m_bytes_written > UINT32_MAX))) {
259 if (!m_setup.m_rf64_explicit) { // turn RIFF into RF64?
260 m_file->seek(0, p_abort);
261 m_file->write("RF64", 4, p_abort);
262 }
263 m_file->seek(m_ds64_at, p_abort);
264 m_file->write("ds64", 4, p_abort);
265 writeSize(28, p_abort);
266
267 // RIFF size, data size, sample count
268 m_file->write_lendian_t(riffSize, p_abort);
269 m_file->write_lendian_t(m_bytes_written, p_abort);
270
271 unsigned sampleBytes = (m_setup.m_bps + 7) / 8 * m_setup.m_channels;
272 uint64_t samples = m_bytes_written / sampleBytes;
273 m_file->write_lendian_t(samples, p_abort);
274 uint32_t tableCount = 0;
275 m_file->write_lendian_t(tableCount, p_abort);
276 }
277 }
278 m_file.release();
279 }
280 m_postprocessor.release();
281 }
282
283 void CWavWriter::close()
284 {
285 m_file.release();
286 m_postprocessor.release();
287 }
288
289 audio_chunk::spec_t CWavWriter::get_spec() const {
290 audio_chunk::spec_t spec = {};
291 spec.sampleRate = m_setup.m_samplerate;
292 spec.chanCount = m_setup.m_channels;
293 spec.chanMask = m_setup.m_channel_mask;
294 return spec;
295 }
296
297 namespace {
298 class fileWav : public foobar2000_io::file {
299 public:
300 size_t read( void * buffer, size_t bytes, abort_callback & aborter ) override {
301 aborter.check();
302 uint8_t * out = (uint8_t*) buffer;
303 size_t ret = 0;
304 if (m_position < m_header.size()) {
305 size_t delta = (size_t) ( m_header.size() - m_position );
306 if (delta > bytes) delta = bytes;
307 memcpy( out, &m_header[(size_t)m_position], delta );
308 m_position += delta;
309 out += delta; ret += delta; bytes -= delta;
310 }
311 if (bytes > 0) {
312 m_data->seek( m_position, aborter );
313 size_t didRead = m_data->read( out, bytes, aborter );
314 m_position += didRead;
315 ret += didRead;
316 }
317 return ret;
318 }
319 void write( const void * buffer, size_t bytes, abort_callback & aborter ) override {
320 throw exception_io_denied();
321 }
322 fileWav( std::vector<uint8_t> const & header, file::ptr data) {
323 m_data = data;
324 m_position = 0;
325 m_header = header;
326 }
327 fileWav( std::vector<uint8_t> && header, file::ptr data) {
328 m_data = data;
329 m_position = 0;
330 m_header = std::move(header);
331 }
332 t_filesize get_size(abort_callback & p_abort) override {
333 t_filesize s = m_data->get_size( p_abort );
334 if (s != filesize_invalid) s += m_header.size();
335 return s;
336 }
337 t_filesize get_position(abort_callback & p_abort) override {
338 return m_position;
339 }
340 void resize(t_filesize p_size,abort_callback & p_abort) override {
341 throw exception_io_denied();
342 }
343 void seek(t_filesize p_position,abort_callback & p_abort) override {
344 if (p_position > get_size(p_abort)) throw exception_io_seek_out_of_range();
345 m_position = p_position;
346 }
347 bool can_seek() override {return true; }
348 bool get_content_type(pfc::string_base & p_out) override { return false; }
349 void reopen(abort_callback & p_abort) override { seek(0, p_abort); }
350 bool is_remote() override { return m_data->is_remote(); }
351 private:
352 std::vector<uint8_t> m_header;
353 t_filesize m_position;
354 file::ptr m_data;
355 };
356 }
357
358 static std::vector<uint8_t> makeWavHeader( const wavWriterSetup_t & setup, t_filesize dataSize, abort_callback & aborter ) {
359 std::vector<uint8_t> ret;
360 file::ptr temp; filesystem::g_open_tempmem( temp, aborter );
361 {
362 CWavWriter w;
363 w.open( temp, setup, aborter );
364 }
365 const size_t s = pfc::downcast_guarded<size_t>( temp->get_size( aborter ) );
366 if (s > 0) {
367 ret.resize( s );
368 temp->seek( 0, aborter );
369 temp->read_object( &ret[0], s, aborter );
370 }
371 return ret;
372 }
373
374 file::ptr makeLiveWAVFile( const wavWriterSetup_t & setup, file::ptr data ) {
375 t_filesize size = data->get_size( fb2k::noAbort );
376 auto vec = makeWavHeader( setup, size, fb2k::noAbort );
377 return new service_impl_t< fileWav >( std::move(vec), data );
378 }