Diffstat (limited to 'core/multimedia/opieplayer/wavplugin/wavplugin.cpp') (more/less context) (ignore whitespace changes)
-rw-r--r-- | core/multimedia/opieplayer/wavplugin/wavplugin.cpp | 425 |
1 files changed, 289 insertions, 136 deletions
diff --git a/core/multimedia/opieplayer/wavplugin/wavplugin.cpp b/core/multimedia/opieplayer/wavplugin/wavplugin.cpp index 7f63b3b..0be667f 100644 --- a/core/multimedia/opieplayer/wavplugin/wavplugin.cpp +++ b/core/multimedia/opieplayer/wavplugin/wavplugin.cpp | |||
@@ -18,6 +18,4 @@ | |||
18 | ** | 18 | ** |
19 | **********************************************************************/ | 19 | **********************************************************************/ |
20 | // L.J.Potter added changes Fri 02-15-2002 | ||
21 | |||
22 | #include <stdio.h> | 20 | #include <stdio.h> |
23 | #include <stdarg.h> | 21 | #include <stdarg.h> |
@@ -28,5 +26,4 @@ | |||
28 | #include "wavplugin.h" | 26 | #include "wavplugin.h" |
29 | 27 | ||
30 | |||
31 | //#define debugMsg(a) qDebug(a) | 28 | //#define debugMsg(a) qDebug(a) |
32 | #define debugMsg(a) | 29 | #define debugMsg(a) |
@@ -50,5 +47,5 @@ struct ChunkData { | |||
50 | 47 | ||
51 | 48 | ||
52 | const int sound_buffer_size = 512; // 4096; // you got to be kidding right? | 49 | const int sound_buffer_size = 4096; |
53 | 50 | ||
54 | 51 | ||
@@ -64,132 +61,291 @@ public: | |||
64 | int samples_due; | 61 | int samples_due; |
65 | int samples; | 62 | int samples; |
66 | 63 | int freq; | |
64 | int chan; | ||
65 | int sampleRate; | ||
66 | int resolution; | ||
67 | |||
67 | WavPluginData() { | 68 | WavPluginData() { |
68 | max = out = sound_buffer_size; | 69 | max = out = sound_buffer_size; |
69 | wavedata_remaining = 0; | 70 | wavedata_remaining = 0; |
70 | samples_due = 0; | 71 | samples_due = 0; |
71 | samples = -1; | 72 | samples = -1; |
72 | } | 73 | } |
73 | 74 | ||
74 | // expands out samples to the frequency of 44kHz | 75 | // expands out samples to the frequency of 44kHz |
75 | bool add( short *output, long count, long& done, bool stereo ) | 76 | bool add( short *output, long count, long& done, bool stereo ) |
76 | { | 77 | { |
77 | done = 0; | 78 | qDebug("add"); |
78 | qApp->processEvents(); | 79 | done = 0; |
79 | 80 | ||
80 | if ( input == 0 ) { | 81 | if ( input == 0 ) { |
81 | qDebug("no input"); | 82 | qDebug("no input"); |
82 | return FALSE; | ||
83 | } | ||
84 | |||
85 | while ( count ) { | ||
86 | int l,r; | ||
87 | if ( getSample(l, r) == FALSE ) { | ||
88 | qDebug("didn't get sample"); | ||
89 | return FALSE; | 83 | return FALSE; |
90 | } | 84 | } |
91 | samples_due += chunkdata.samplesPerSec; | 85 | |
92 | while ( count && (samples_due > chunkdata.samplesPerSec) ) { | 86 | while ( count ) { |
93 | *output++ = l; | 87 | int l,r; |
94 | if ( stereo ) | 88 | if ( getSample(l, r) == FALSE ) { |
95 | *output++ = r; | 89 | qDebug("didn't get sample"); |
96 | samples_due -= chunkdata.samplesPerSec; | 90 | return FALSE; |
97 | count--; | 91 | } |
98 | done++; | 92 | samples_due += 44100; |
93 | while ( count && (samples_due > chunkdata.samplesPerSec) ) { | ||
94 | *output++ = l; | ||
95 | if ( stereo ) | ||
96 | *output++ = r; | ||
97 | samples_due -= chunkdata.samplesPerSec; | ||
98 | count--; | ||
99 | done++; | ||
100 | } | ||
99 | } | 101 | } |
102 | |||
103 | return TRUE; | ||
100 | } | 104 | } |
101 | return TRUE; | ||
102 | } | ||
103 | 105 | ||
104 | bool initialise() { | 106 | bool initialise() { |
105 | if ( input == 0 ) | 107 | qDebug("initialize"); |
106 | return FALSE; | 108 | if ( input == 0 ) |
109 | return FALSE; | ||
110 | |||
111 | wavedata_remaining = -1; | ||
112 | |||
113 | while ( wavedata_remaining == -1 ) { | ||
114 | // Keep reading chunks... | ||
115 | const int n = sizeof(chunk) - sizeof(chunk.data); | ||
116 | int t = input->readBlock( (char*)&chunk, n ); | ||
117 | if ( t != n ) { | ||
118 | if ( t == -1 ) | ||
119 | return FALSE; | ||
120 | return TRUE; | ||
121 | } | ||
122 | if ( qstrncmp(chunk.id,"data",4) == 0 ) { | ||
123 | samples = wavedata_remaining = chunk.size; | ||
124 | } else if ( qstrncmp(chunk.id,"RIFF",4) == 0 ) { | ||
125 | char d[4]; | ||
126 | if ( input->readBlock(d,4) != 4 ) { | ||
127 | return FALSE; | ||
128 | } | ||
129 | if ( qstrncmp(d,"WAVE",4) != 0 ) { | ||
130 | // skip | ||
131 | if ( chunk.size > 1000000000 || !input->at(input->at()+chunk.size-4) ) { | ||
132 | return FALSE; | ||
133 | } | ||
134 | } | ||
135 | } else if ( qstrncmp(chunk.id,"fmt ",4) == 0 ) { | ||
136 | if ( input->readBlock((char*)&chunkdata,sizeof(chunkdata)) != sizeof(chunkdata) ) { | ||
137 | return FALSE; | ||
138 | } | ||
139 | #define WAVE_FORMAT_PCM 1 | ||
140 | if ( chunkdata.formatTag != WAVE_FORMAT_PCM ) { | ||
141 | qDebug("WAV file: UNSUPPORTED FORMAT %d",chunkdata.formatTag); | ||
142 | return FALSE; | ||
143 | } | ||
144 | } | ||
107 | 145 | ||
108 | wavedata_remaining = -1; | ||
109 | 146 | ||
110 | while ( wavedata_remaining == -1 ) { | 147 | |
111 | // Keep reading chunks... | 148 | |
112 | const int n = sizeof(chunk) - sizeof(chunk.data); | 149 | else { |
113 | int t = input->readBlock( (char*)&chunk, n ); | 150 | // ignored chunk |
114 | if ( t != n ) { | 151 | if ( chunk.size > 1000000000 || !input->at(input->at()+chunk.size) ) { |
115 | if ( t == -1 ) | 152 | return FALSE; |
116 | return FALSE; | 153 | } |
117 | return TRUE; | 154 | } |
118 | } | 155 | } // while |
119 | if ( qstrncmp(chunk.id,"data",4) == 0 ) { | 156 | |
120 | samples = wavedata_remaining = chunk.size; | 157 | return TRUE; |
121 | } else if ( qstrncmp(chunk.id,"RIFF",4) == 0 ) { | ||
122 | char d[4]; | ||
123 | if ( input->readBlock(d,4) != 4 ) { | ||
124 | return FALSE; | ||
125 | } | ||
126 | if ( qstrncmp(d,"WAVE",4) != 0 ) { | ||
127 | // skip | ||
128 | if ( chunk.size > 1000000000 || !input->at(input->at()+chunk.size-4) ) { | ||
129 | return FALSE; | ||
130 | } | ||
131 | } | ||
132 | } else if ( qstrncmp(chunk.id,"fmt ",4) == 0 ) { | ||
133 | if ( input->readBlock((char*)&chunkdata,sizeof(chunkdata)) != sizeof(chunkdata) ) { | ||
134 | return FALSE; | ||
135 | } | ||
136 | #define WAVE_FORMAT_PCM 1 | ||
137 | if ( chunkdata.formatTag != WAVE_FORMAT_PCM ) { | ||
138 | qDebug("WAV file: UNSUPPORTED FORMAT %d",chunkdata.formatTag); | ||
139 | return FALSE; | ||
140 | } | ||
141 | } else { | ||
142 | // ignored chunk | ||
143 | if ( chunk.size > 1000000000 || !input->at(input->at()+chunk.size) ) { | ||
144 | return FALSE; | ||
145 | } | ||
146 | } | ||
147 | } // while | ||
148 | qDebug("bits %d", chunkdata.wBitsPerSample); | ||
149 | return TRUE; | ||
150 | } | 158 | } |
151 | 159 | ||
152 | 160 | ||
153 | // gets a sample from the file | 161 | // gets a sample from the file |
154 | bool getSample(int& l, int& r) | 162 | bool getSample(int& l, int& r) |
155 | { | 163 | { |
156 | l = r = 0; | 164 | l = r = 0; |
157 | 165 | ||
158 | if ( input == 0 ) | 166 | if ( input == 0 ) |
159 | return FALSE; | 167 | return FALSE; |
160 | 168 | ||
161 | if ( (wavedata_remaining < 0) || !max ) | 169 | if ( (wavedata_remaining < 0) || !max ) |
162 | return FALSE; | 170 | return FALSE; |
163 | 171 | ||
164 | if ( out >= max ) { | 172 | if ( out >= max ) { |
165 | max = input->readBlock( (char*)data, (uint)QMIN(sound_buffer_size,wavedata_remaining) ); | 173 | max = input->readBlock( (char*)data, (uint)QMIN(sound_buffer_size,wavedata_remaining) ); |
166 | 174 | ||
167 | wavedata_remaining -= max; | 175 | wavedata_remaining -= max; |
168 | 176 | ||
169 | out = 0; | 177 | out = 0; |
170 | if ( max <= 0 ) { | 178 | if ( max <= 0 ) { |
171 | max = 0; | 179 | max = 0; |
172 | return TRUE; | 180 | return TRUE; |
173 | } | 181 | } |
174 | } | 182 | } |
175 | if ( chunkdata.wBitsPerSample == 8 ) { | 183 | if ( resolution == 8 ) { |
176 | l = (data[out++] - 128) * 128; | 184 | l = (data[out++] - 128) * 128; |
177 | } else { | 185 | } else { |
178 | l = ((short*)data)[out/2]; | 186 | l = ((short*)data)[out/2]; |
179 | out += 2; | 187 | out += 2; |
180 | } | 188 | } |
181 | if ( chunkdata.channels == 1 ) { | 189 | if ( chan == 1 ) { |
182 | r = l; | 190 | r = l; |
183 | } else { | 191 | } else { |
184 | if ( chunkdata.wBitsPerSample == 8 ) { | 192 | if ( resolution == 8 ) { |
185 | r = (data[out++] - 128) * 128; | 193 | r = (data[out++] - 128) * 128; |
186 | } else { | 194 | } else { |
187 | r = ((short*)data)[out/2]; | 195 | r = ((short*)data)[out/2]; |
188 | out += 2; | 196 | out += 2; |
189 | } | 197 | } |
190 | } | 198 | } |
191 | return TRUE; | 199 | return TRUE; |
192 | } // getSample | 200 | } // getSample |
201 | |||
202 | ////////////////////////////////////////////////////// | ||
203 | int getWavSettings(int fd) | ||
204 | { //this came from wmrecord | ||
205 | |||
206 | char t1[4]; | ||
207 | unsigned long l1; | ||
208 | int found; | ||
209 | short fmt; | ||
210 | unsigned short ch, brate; | ||
211 | unsigned long srate; | ||
212 | |||
213 | |||
214 | /* First read in the RIFF identifier. If this is missing then the | ||
215 | * file is not a valid WAVE file. | ||
216 | */ | ||
217 | if (read(fd, t1, 4)<4) { | ||
218 | qDebug(" Could not read from sound file.\n"); | ||
219 | return -1; | ||
220 | } | ||
221 | if (strncmp(t1, "RIFF", 4)) { | ||
222 | qDebug(" not a valid WAV file.\n"); | ||
223 | return -1; | ||
224 | } | ||
225 | /* Advance the file pointer to the next relevant field. */ | ||
226 | lseek(fd, 4, SEEK_CUR); | ||
227 | /* Read in the WAVE identifier. */ | ||
228 | if (read(fd, t1, 4)<4) { | ||
229 | qDebug("Could not read from sound file.\n"); | ||
230 | return -1; | ||
231 | } | ||
232 | if (strncmp(t1, "WAVE", 4)) { | ||
233 | qDebug("not a valid WAV file.\n"); | ||
234 | return -1; | ||
235 | } | ||
193 | 236 | ||
237 | /* Search through the file for the format chunk. If the end of the | ||
238 | * file is reached without finding the chunk, then the file is not a | ||
239 | * valid WAVE file. | ||
240 | */ | ||
241 | found = 0; | ||
242 | while (!found) { | ||
243 | if (read(fd, t1, 4)<4) { | ||
244 | qDebug("Could not read from sound file.\n"); | ||
245 | return -1; | ||
246 | } | ||
247 | if (strncmp(t1, "fmt ", 4)) { | ||
248 | /* Determine the length of the chunk found and skip to the next | ||
249 | * chunk. The chunk length is always stored in the four bytes | ||
250 | * following the chunk id. | ||
251 | */ | ||
252 | if (read(fd, &l1, 4)<4) { | ||
253 | qDebug("Could not read from sound file.\n"); | ||
254 | return -1; | ||
255 | } | ||
256 | lseek(fd, l1, SEEK_CUR); | ||
257 | } | ||
258 | else { | ||
259 | /* This is the format chunk, which stores the playback settings | ||
260 | * for the recording. | ||
261 | */ | ||
262 | /* Skip the length field, since we don't really need it. */ | ||
263 | lseek(fd, 4, SEEK_CUR); | ||
264 | /* Read in the format tag. If it has a value of 1, then there is | ||
265 | * no compression and we can attempt to play the file | ||
266 | * back. Otherwise, return. | ||
267 | */ | ||
268 | if (read(fd, &fmt, 2)<2) { | ||
269 | qDebug("Could not read from format chunk.\n"); | ||
270 | return -1; | ||
271 | } | ||
272 | if (fmt != 1) { | ||
273 | qDebug("Wave file contains compressed data." | ||
274 | " Unable to continue.\n"); | ||
275 | return -1; | ||
276 | } | ||
277 | /* Get the stereo mode. */ | ||
278 | if (read(fd, &ch, 2)<2) { | ||
279 | qDebug("Could not read from format chunk.\n"); | ||
280 | return -1; | ||
281 | } | ||
282 | else { | ||
283 | chan = ch; | ||
284 | qDebug("File has %d channels", chan); | ||
285 | } | ||
286 | /* Get the sample rate. */ | ||
287 | if (read(fd, &srate, 4)<4) { | ||
288 | qDebug("Could not read from format chunk.\n"); | ||
289 | return -1; | ||
290 | } | ||
291 | else { | ||
292 | sampleRate = srate; | ||
293 | qDebug("File has samplerate of %d", sampleRate); | ||
294 | } | ||
295 | /* Get the bit rate. This is at the end of the format chunk. */ | ||
296 | lseek(fd, 6, SEEK_CUR); | ||
297 | if (read(fd, &brate, 2)<2) { | ||
298 | qDebug("Could not read from format chunk.\n"); | ||
299 | return -1; | ||
300 | } | ||
301 | else { | ||
302 | resolution = brate; | ||
303 | qDebug("File has bitrate of %d", resolution); | ||
304 | } | ||
305 | |||
306 | found++; | ||
307 | } | ||
308 | } | ||
309 | |||
310 | /* Search through the file for the data chunk. If the end of the | ||
311 | * file is reached without finding the chunk, then the file is not a | ||
312 | * valid WAVE file. | ||
313 | */ | ||
314 | found = 0; | ||
315 | while (!found) { | ||
316 | if (read(fd, t1, 4)<4) { | ||
317 | qDebug("Could not read from sound file.\n"); | ||
318 | return -1; | ||
319 | } | ||
320 | if (strncmp(t1, "data", 4)) { | ||
321 | /* Determine the length of the chunk found and skip to the next | ||
322 | * chunk. The chunk length is always stored in the four bytes | ||
323 | * following the chunk id. | ||
324 | */ | ||
325 | if (read(fd, &l1, 4)<4) { | ||
326 | qDebug("Could not read from sound file.\n"); | ||
327 | return -1; | ||
328 | } | ||
329 | lseek(fd, l1, SEEK_CUR); | ||
330 | } | ||
331 | else { | ||
332 | /* This is the data chunk, which stores the recording. */ | ||
333 | /* Get the length field. */ | ||
334 | if (read(fd, &l1, 4)<4) { | ||
335 | qDebug("Could not read from sound file.\n"); | ||
336 | return -1; | ||
337 | } | ||
338 | else { | ||
339 | samples =l1; | ||
340 | qDebug("file has length of %d\nlasting %d seconds",l1, (( l1 / sampleRate) / chan) / 2 ); // ???? | ||
341 | return l1; | ||
342 | } | ||
343 | } | ||
344 | } | ||
345 | |||
346 | return 0; | ||
347 | } | ||
348 | |||
349 | ////////////////////////////////////////////////// | ||
194 | }; | 350 | }; |
195 | 351 | ||
@@ -208,5 +364,5 @@ WavPlugin::~WavPlugin() { | |||
208 | 364 | ||
209 | bool WavPlugin::isFileSupported( const QString& path ) { | 365 | bool WavPlugin::isFileSupported( const QString& path ) { |
210 | // qDebug( "WavPlugin::isFileSupported" ); | 366 | debugMsg( "WavPlugin::isFileSupported" ); |
211 | 367 | ||
212 | char *ext = strrchr( path.latin1(), '.' ); | 368 | char *ext = strrchr( path.latin1(), '.' ); |
@@ -227,5 +383,5 @@ bool WavPlugin::isFileSupported( const QString& path ) { | |||
227 | 383 | ||
228 | bool WavPlugin::open( const QString& path ) { | 384 | bool WavPlugin::open( const QString& path ) { |
229 | // qDebug( "WavPlugin::open" ); | 385 | qDebug( "WavPlugin::open" ); |
230 | 386 | ||
231 | d->max = d->out = sound_buffer_size; | 387 | d->max = d->out = sound_buffer_size; |
@@ -235,10 +391,11 @@ bool WavPlugin::open( const QString& path ) { | |||
235 | d->input = new QFile( path ); | 391 | d->input = new QFile( path ); |
236 | if ( d->input->open(IO_ReadOnly) == FALSE ) { | 392 | if ( d->input->open(IO_ReadOnly) == FALSE ) { |
237 | qDebug("couldn't open file"); | 393 | qDebug("couldn't open file"); |
238 | delete d->input; | 394 | delete d->input; |
239 | d->input = 0; | 395 | d->input = 0; |
240 | return FALSE; | 396 | return FALSE; |
241 | } | 397 | } |
242 | 398 | ||
399 | // d->getWavSettings( d->input.handle()); | ||
243 | d->initialise(); | 400 | d->initialise(); |
244 | 401 | ||
@@ -248,5 +405,5 @@ bool WavPlugin::open( const QString& path ) { | |||
248 | 405 | ||
249 | bool WavPlugin::close() { | 406 | bool WavPlugin::close() { |
250 | // qDebug( "WavPlugin::close" ); | 407 | qDebug( "WavPlugin::close" ); |
251 | 408 | ||
252 | d->input->close(); | 409 | d->input->close(); |
@@ -258,5 +415,5 @@ bool WavPlugin::close() { | |||
258 | 415 | ||
259 | bool WavPlugin::isOpen() { | 416 | bool WavPlugin::isOpen() { |
260 | // qDebug( "WavPlugin::isOpen" ); | 417 | qDebug( "WavPlugin::isOpen" ); |
261 | return ( d->input != 0 ); | 418 | return ( d->input != 0 ); |
262 | } | 419 | } |
@@ -264,5 +421,5 @@ bool WavPlugin::isOpen() { | |||
264 | 421 | ||
265 | int WavPlugin::audioStreams() { | 422 | int WavPlugin::audioStreams() { |
266 | // qDebug( "WavPlugin::audioStreams" ); | 423 | qDebug( "WavPlugin::audioStreams" ); |
267 | return 1; | 424 | return 1; |
268 | } | 425 | } |
@@ -270,24 +427,25 @@ int WavPlugin::audioStreams() { | |||
270 | 427 | ||
271 | int WavPlugin::audioChannels( int ) { | 428 | int WavPlugin::audioChannels( int ) { |
272 | // qDebug( "WavPlugin::audioChannels" ); | 429 | debugMsg( "WavPlugin::audioChannels" ); |
273 | return d->chunkdata.channels;// 2; // ### Always scale audio to stereo samples | 430 | return d->chan; |
274 | } | 431 | } |
275 | 432 | ||
276 | 433 | ||
277 | int WavPlugin::audioFrequency( int ) { | 434 | int WavPlugin::audioFrequency( int ) { |
278 | // qDebug( "WavPlugin::audioFrequency %d", d->chunkdata.samplesPerSec ); | 435 | qDebug( "WavPlugin::audioFrequency" ); |
279 | return d->chunkdata.samplesPerSec; //44100; // ### Always scale to frequency of 44100 | 436 | return d->freq; |
280 | } | 437 | } |
281 | 438 | ||
282 | 439 | ||
283 | int WavPlugin::audioSamples( int ) { | 440 | int WavPlugin::audioSamples( int ) { |
284 | // qDebug( "WavPlugin::audioSamples" ); | 441 | qDebug( "WavPlugin::audioSamples" ); |
285 | return d->samples / d->chunkdata.channels/2; // ### Scaled samples will be made stereo, | 442 | return d->samples; |
286 | // Therefore if source is mono we will double the number of samples | 443 | // return d->samples * 2 / d->chunkdata.channels; // ### Scaled samples will be made stereo, |
444 | // // Therefore if source is mono we will double the number of samples | ||
287 | } | 445 | } |
288 | 446 | ||
289 | 447 | ||
290 | bool WavPlugin::audioSetSample( long, int ) { | 448 | bool WavPlugin::audioSetSample( long, int ) { |
291 | // qDebug( "WavPlugin::audioSetSample" ); | 449 | qDebug( "WavPlugin::audioSetSample" ); |
292 | return FALSE; | 450 | return FALSE; |
293 | } | 451 | } |
@@ -295,5 +453,5 @@ bool WavPlugin::audioSetSample( long, int ) { | |||
295 | 453 | ||
296 | long WavPlugin::audioGetSample( int ) { | 454 | long WavPlugin::audioGetSample( int ) { |
297 | // qDebug( "WavPlugin::audioGetSample" ); | 455 | qDebug( "WavPlugin::audioGetSample" ); |
298 | return 0; | 456 | return 0; |
299 | } | 457 | } |
@@ -325,17 +483,12 @@ bool WavPlugin::audioReadStereoSamples( short *output, long samples, long& sampl | |||
325 | 483 | ||
326 | bool WavPlugin::audioReadSamples( short *output, int channels, long samples, long& samplesMade, int ) { | 484 | bool WavPlugin::audioReadSamples( short *output, int channels, long samples, long& samplesMade, int ) { |
327 | // qDebug( "WavPlugin::audioReadSamples" ); | 485 | qDebug( "WavPlugin::audioReadSamples" ); |
328 | return d->add( output, samples, samplesMade, channels != 1 ); | 486 | return d->add( output, samples, samplesMade, channels != 1 ); |
329 | } | 487 | } |
330 | 488 | ||
331 | double WavPlugin::getTime() { | 489 | double WavPlugin::getTime() { |
332 | // qDebug( "WavPlugin::getTime" ); | 490 | qDebug( "WavPlugin::getTime" ); |
333 | return 0.0; | 491 | return 0.0; |
334 | } | 492 | } |
335 | 493 | ||
336 | int WavPlugin::audioBitsPerSample( int ) { | ||
337 | // qDebug( "WavPlugin::audioFormat %d", d->chunkdata.wBitsPerSample ); | ||
338 | return d->chunkdata.wBitsPerSample; // | ||
339 | } | ||
340 | |||
341 | 494 | ||