1 /*****************************************************************************
2 * realaudio.c: a realaudio decoder that uses the realaudio library/dll
3 *****************************************************************************
4 * Copyright (C) 2005 the VideoLAN team
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
20 *****************************************************************************/
22 /*****************************************************************************
24 *****************************************************************************/
28 #include <vlc/decoder.h>
31 /* Need the w32dll loader from mplayer */
32 # include <wine/winerror.h>
33 # include <ldt_keeper.h>
34 # include <wine/windef.h>
36 void *WINAPI LoadLibraryA( char *name );
37 void *WINAPI GetProcAddress( void *handle, char *func );
38 int WINAPI FreeLibrary( void *handle );
45 #if defined(HAVE_DL_DLOPEN)
46 # if defined(HAVE_DLFCN_H) /* Linux, BSD, Hurd */
49 # if defined(HAVE_SYS_DL_H)
54 /*****************************************************************************
56 *****************************************************************************/
57 static int Open ( vlc_object_t * );
58 static void Close( vlc_object_t * );
61 set_description( _("RealAudio library decoder") );
62 set_capability( "decoder", 10 );
63 set_category( CAT_INPUT );
64 set_subcategory( SUBCAT_INPUT_VCODEC );
65 set_callbacks( Open, Close );
68 /*****************************************************************************
70 *****************************************************************************/
71 static int OpenDll( decoder_t * );
72 static int OpenNativeDll( decoder_t *, char *, char * );
73 static int OpenWin32Dll( decoder_t *, char *, char * );
74 static void CloseDll( decoder_t * );
76 static aout_buffer_t *Decode( decoder_t *, block_t ** );
80 audio_date_t end_date;
91 unsigned long (*raCloseCodec)(void*);
92 unsigned long (*raDecode)(void*, char*, unsigned long, char*,
94 unsigned long (*raFlush)(unsigned long, unsigned long, unsigned long);
95 unsigned long (*raFreeDecoder)(void*);
96 void* (*raGetFlavorProperty)(void*, unsigned long,
98 unsigned long (*raInitDecoder)(void*, void*);
99 unsigned long (*raOpenCodec)(void*);
100 unsigned long (*raOpenCodec2)(void*, void*);
101 unsigned long (*raSetFlavor)(void*, unsigned long);
102 void (*raSetDLLAccessPath)(char*);
103 void (*raSetPwd)(char*, char*);
110 unsigned long (WINAPI *wraCloseCodec)(void*);
111 unsigned long (WINAPI *wraDecode)(void*, char*, unsigned long, char*,
112 unsigned int*, long);
113 unsigned long (WINAPI *wraFlush)(unsigned long, unsigned long,
115 unsigned long (WINAPI *wraFreeDecoder)(void*);
116 void* (WINAPI *wraGetFlavorProperty)(void*, unsigned long,
117 unsigned long, int*);
118 unsigned long (WINAPI *wraInitDecoder)(void*, void*);
119 unsigned long (WINAPI *wraOpenCodec)(void*);
120 unsigned long (WINAPI *wraOpenCodec2)(void*, void*);
121 unsigned long (WINAPI *wraSetFlavor)(void*, unsigned long);
122 void (WINAPI *wraSetDLLAccessPath)(char*);
123 void (WINAPI *wraSetPwd)(char*, char*);
126 /* linux dlls doesn't need packing */
127 typedef struct /*__attribute__((__packed__))*/ {
132 /* 2bytes padding here, by gcc */
139 /* windows dlls need packed structs (no padding) */
140 typedef struct __attribute__((__packed__)) {
151 void *__builtin_new(unsigned long size) {return malloc(size);}
152 void __builtin_delete(void *p) {free(p);}
154 static int pi_channels_maps[7] =
158 AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
159 AOUT_CHAN_CENTER | AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
160 AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_REARLEFT
161 | AOUT_CHAN_REARRIGHT,
162 AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
163 | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT,
164 AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
165 | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT | AOUT_CHAN_LFE
168 /*****************************************************************************
169 * Open: probe the decoder and return score
170 *****************************************************************************
171 * Tries to launch a decoder and return score so that the interface is able
173 *****************************************************************************/
174 static int Open( vlc_object_t *p_this )
176 decoder_t *p_dec = (decoder_t*)p_this;
177 decoder_sys_t *p_sys = p_dec->p_sys;
179 switch( p_dec->fmt_in.i_codec )
181 case VLC_FOURCC('c','o','o','k'):
188 if( p_dec->fmt_in.audio.i_channels <= 0 ||
189 p_dec->fmt_in.audio.i_channels > 6 )
191 msg_Err( p_dec, "invalid number of channels (not between 1 and 6): %i",
192 p_dec->fmt_in.audio.i_channels );
196 p_dec->p_sys = p_sys = malloc( sizeof( decoder_sys_t ) );
197 memset( p_sys, 0, sizeof(decoder_sys_t) );
199 p_sys->i_codec_flavor = -1;
200 if( p_dec->fmt_in.i_codec == VLC_FOURCC('s','i','p','r') )
202 if( p_dec->fmt_in.audio.i_bitspersample > 1531 )
203 p_sys->i_codec_flavor = 3;
204 else if( p_dec->fmt_in.audio.i_bitspersample > 937 )
205 p_sys->i_codec_flavor = 1;
206 else if( p_dec->fmt_in.audio.i_bitspersample > 719 )
207 p_sys->i_codec_flavor = 0;
209 p_sys->i_codec_flavor = 2;
212 if( OpenDll( p_dec ) != VLC_SUCCESS )
219 if( p_sys->win32_dll ) Close( p_this );
222 es_format_Init( &p_dec->fmt_out, AUDIO_ES, AOUT_FMT_S16_NE );
223 p_dec->fmt_out.audio.i_rate = p_dec->fmt_in.audio.i_rate;
224 p_dec->fmt_out.audio.i_channels = p_dec->fmt_in.audio.i_channels;
225 p_dec->fmt_out.audio.i_bitspersample =
226 p_dec->fmt_in.audio.i_bitspersample;
227 p_dec->fmt_out.audio.i_physical_channels =
228 p_dec->fmt_out.audio.i_original_channels =
229 pi_channels_maps[p_dec->fmt_out.audio.i_channels];
231 aout_DateInit( &p_sys->end_date, p_dec->fmt_out.audio.i_rate );
232 aout_DateSet( &p_sys->end_date, 0 );
234 p_dec->pf_decode_audio = Decode;
236 p_sys->p_out = malloc( 4096 * 10 );
242 /*****************************************************************************
244 *****************************************************************************/
245 static void Close( vlc_object_t *p_this )
247 decoder_t *p_dec = (decoder_t*)p_this;
250 if( p_dec->p_sys->p_out ) free( p_dec->p_sys->p_out );
251 free( p_dec->p_sys );
254 /*****************************************************************************
256 *****************************************************************************/
257 static int OpenDll( decoder_t *p_dec )
266 "/usr/local/RealPlayer8/Codecs",
267 "/usr/RealPlayer8/Codecs",
268 "/usr/lib/RealPlayer8/Codecs",
269 "/opt/RealPlayer8/Codecs",
270 "/usr/lib/RealPlayer9/users/Real/Codecs",
271 "/usr/lib64/RealPlayer8/Codecs",
272 "/usr/lib64/RealPlayer9/users/Real/Codecs",
281 char psz_win32_real_codecs[MAX_PATH + 1];
282 char psz_win32_helix_codecs[MAX_PATH + 1];
285 for( i = 0; ppsz_path[i]; i++ )
287 asprintf( &psz_dll, "%s/%4.4s.so.6.0", ppsz_path[i],
288 (char *)&p_dec->fmt_in.i_codec );
289 i_result = OpenNativeDll( p_dec, ppsz_path[i], psz_dll );
291 if( i_result == VLC_SUCCESS ) return VLC_SUCCESS;
297 DWORD i_type, i_data = MAX_PATH + 1, i_index = 1;
300 p_data = psz_win32_real_codecs;
301 if( RegOpenKeyEx( HKEY_CLASSES_ROOT,
302 _T("Software\\RealNetworks\\Preferences\\DT_Codecs"),
303 0, KEY_READ, &h_key ) == ERROR_SUCCESS )
305 if( RegQueryValueEx( h_key, _T(""), 0, &i_type,
306 (LPBYTE)p_data, &i_data ) == ERROR_SUCCESS &&
309 int i_len = strlen( p_data );
310 if( i_len && p_data[i_len-1] == '\\' ) p_data[i_len-1] = 0;
311 ppsz_path[i_index++] = p_data;
312 msg_Err( p_dec, "Real: %s", p_data );
314 RegCloseKey( h_key );
317 p_data = psz_win32_helix_codecs;
318 if( RegOpenKeyEx( HKEY_CLASSES_ROOT,
319 _T("Helix\\HelixSDK\\10.0\\Preferences\\DT_Codecs"),
320 0, KEY_READ, &h_key ) == ERROR_SUCCESS )
322 if( RegQueryValueEx( h_key, _T(""), 0, &i_type,
323 (LPBYTE)p_data, &i_data ) == ERROR_SUCCESS &&
326 int i_len = strlen( p_data );
327 if( i_len && p_data[i_len-1] == '\\' ) p_data[i_len-1] = 0;
328 ppsz_path[i_index++] = p_data;
329 msg_Err( p_dec, "Real: %s", p_data );
331 RegCloseKey( h_key );
336 for( i = 0; ppsz_path[i]; i++ )
339 asprintf( &psz_dll, "%s\\%4.4s.dll", ppsz_path[i],
340 (char *)&p_dec->fmt_in.i_codec );
341 i_result = OpenWin32Dll( p_dec, ppsz_path[i], psz_dll );
343 if( i_result == VLC_SUCCESS ) return VLC_SUCCESS;
346 asprintf( &psz_dll, "%s\\%4.4s3260.dll", ppsz_path[i],
347 (char *)&p_dec->fmt_in.i_codec );
348 i_result = OpenWin32Dll( p_dec, ppsz_path[i], psz_dll );
350 if( i_result == VLC_SUCCESS ) return VLC_SUCCESS;
356 static int OpenNativeDll( decoder_t *p_dec, char *psz_path, char *psz_dll )
358 #if defined(HAVE_DL_DLOPEN)
359 decoder_sys_t *p_sys = p_dec->p_sys;
360 void *handle = 0, *context = 0;
361 unsigned int i_result;
365 ra_init_t init_data =
367 p_dec->fmt_in.audio.i_rate,
368 p_dec->fmt_in.audio.i_bitspersample,
369 p_dec->fmt_in.audio.i_channels,
371 p_dec->fmt_in.audio.i_blockalign, /* subpacket size */
372 p_dec->fmt_in.audio.i_blockalign, /* coded frame size */
373 p_dec->fmt_in.i_extra, p_dec->fmt_in.p_extra
376 msg_Dbg( p_dec, "opening library '%s'", psz_dll );
377 if( !(handle = dlopen( psz_dll, RTLD_LAZY )) )
379 msg_Dbg( p_dec, "couldn't load library '%s' (%s)",
380 psz_dll, dlerror() );
384 p_sys->raCloseCodec = dlsym( handle, "RACloseCodec" );
385 p_sys->raDecode = dlsym( handle, "RADecode" );
386 p_sys->raFlush = dlsym( handle, "RAFlush" );
387 p_sys->raFreeDecoder = dlsym( handle, "RAFreeDecoder" );
388 p_sys->raGetFlavorProperty = dlsym( handle, "RAGetFlavorProperty" );
389 p_sys->raOpenCodec = dlsym( handle, "RAOpenCodec" );
390 p_sys->raOpenCodec2 = dlsym( handle, "RAOpenCodec2" );
391 p_sys->raInitDecoder = dlsym( handle, "RAInitDecoder" );
392 p_sys->raSetFlavor = dlsym( handle, "RASetFlavor" );
393 p_sys->raSetDLLAccessPath = dlsym( handle, "SetDLLAccessPath" );
394 p_sys->raSetPwd = dlsym( handle, "RASetPwd" ); // optional, used by SIPR
396 if( !(p_sys->raOpenCodec || p_sys->raOpenCodec2) ||
397 !p_sys->raCloseCodec || !p_sys->raInitDecoder ||
398 !p_sys->raDecode || !p_sys->raFreeDecoder ||
399 !p_sys->raGetFlavorProperty || !p_sys->raSetFlavor
400 /* || !p_sys->raFlush || !p_sys->raSetDLLAccessPath */ )
405 if( p_sys->raOpenCodec2 )
406 i_result = p_sys->raOpenCodec2( &context, psz_path );
408 i_result = p_sys->raOpenCodec( &context );
412 msg_Err( p_dec, "decoder open failed, error code: 0x%x", i_result );
416 i_result = p_sys->raInitDecoder( context, &init_data );
419 msg_Err( p_dec, "decoder init failed, error code: 0x%x", i_result );
423 if( p_sys->i_codec_flavor >= 0 )
425 i_result = p_sys->raSetFlavor( context, p_sys->i_codec_flavor );
428 msg_Err( p_dec, "decoder flavor setup failed, error code: 0x%x",
433 p_prop = p_sys->raGetFlavorProperty( context, p_sys->i_codec_flavor,
435 msg_Dbg( p_dec, "audio codec: [%d] %s",
436 p_sys->i_codec_flavor, (char *)p_prop );
438 p_prop = p_sys->raGetFlavorProperty( context, p_sys->i_codec_flavor,
442 int i_bps = ((*((int*)p_prop))+4)/8;
443 msg_Dbg( p_dec, "audio bitrate: %5.3f kbit/s (%d bps)",
444 (*((int*)p_prop))*0.001f, i_bps );
448 p_sys->context = context;
453 if( context ) p_sys->raFreeDecoder( context );
454 if( context ) p_sys->raCloseCodec( context );
461 static int OpenWin32Dll( decoder_t *p_dec, char *psz_path, char *psz_dll )
463 #if defined(LOADER) || defined(WIN32)
464 decoder_sys_t *p_sys = p_dec->p_sys;
465 void *handle = 0, *context = 0;
466 unsigned int i_result;
470 wra_init_t init_data =
472 p_dec->fmt_in.audio.i_rate,
473 p_dec->fmt_in.audio.i_bitspersample,
474 p_dec->fmt_in.audio.i_channels,
476 p_dec->fmt_in.audio.i_blockalign, /* subpacket size */
477 p_dec->fmt_in.audio.i_blockalign, /* coded frame size */
478 p_dec->fmt_in.i_extra, p_dec->fmt_in.p_extra
481 msg_Dbg( p_dec, "opening win32 dll '%s'", psz_dll );
487 if( !(handle = LoadLibraryA( psz_dll )) )
489 msg_Dbg( p_dec, "couldn't load dll '%s'", psz_dll );
493 p_sys->wraCloseCodec = GetProcAddress( handle, "RACloseCodec" );
494 p_sys->wraDecode = GetProcAddress( handle, "RADecode" );
495 p_sys->wraFlush = GetProcAddress( handle, "RAFlush" );
496 p_sys->wraFreeDecoder = GetProcAddress( handle, "RAFreeDecoder" );
497 p_sys->wraGetFlavorProperty =
498 GetProcAddress( handle, "RAGetFlavorProperty" );
499 p_sys->wraOpenCodec = GetProcAddress( handle, "RAOpenCodec" );
500 p_sys->wraOpenCodec2 = GetProcAddress( handle, "RAOpenCodec2" );
501 p_sys->wraInitDecoder = GetProcAddress( handle, "RAInitDecoder" );
502 p_sys->wraSetFlavor = GetProcAddress( handle, "RASetFlavor" );
503 p_sys->wraSetDLLAccessPath = GetProcAddress( handle, "SetDLLAccessPath" );
505 GetProcAddress( handle, "RASetPwd" ); // optional, used by SIPR
507 if( !(p_sys->wraOpenCodec || p_sys->wraOpenCodec2) ||
508 !p_sys->wraCloseCodec || !p_sys->wraInitDecoder ||
509 !p_sys->wraDecode || !p_sys->wraFreeDecoder ||
510 !p_sys->wraGetFlavorProperty || !p_sys->wraSetFlavor
511 /* || !p_sys->wraFlush || !p_sys->wraSetDLLAccessPath */ )
513 FreeLibrary( handle );
517 if( p_sys->wraOpenCodec2 )
518 i_result = p_sys->wraOpenCodec2( &context, psz_path );
520 i_result = p_sys->wraOpenCodec( &context );
524 msg_Err( p_dec, "decoder open failed, error code: 0x%x", i_result );
528 i_result = p_sys->wraInitDecoder( context, &init_data );
531 msg_Err( p_dec, "decoder init failed, error code: 0x%x", i_result );
535 if( p_sys->i_codec_flavor >= 0 )
537 i_result = p_sys->wraSetFlavor( context, p_sys->i_codec_flavor );
540 msg_Err( p_dec, "decoder flavor setup failed, error code: 0x%x",
545 p_prop = p_sys->wraGetFlavorProperty( context, p_sys->i_codec_flavor,
547 msg_Dbg( p_dec, "audio codec: [%d] %s",
548 p_sys->i_codec_flavor, (char *)p_prop );
550 p_prop = p_sys->wraGetFlavorProperty( context, p_sys->i_codec_flavor,
554 int i_bps = ((*((int*)p_prop))+4)/8;
555 msg_Dbg( p_dec, "audio bitrate: %5.3f kbit/s (%d bps)",
556 (*((int*)p_prop))*0.001f, i_bps );
560 p_sys->context = context;
561 p_sys->win32_dll = handle;
565 if( context ) p_sys->wraFreeDecoder( context );
566 if( context ) p_sys->wraCloseCodec( context );
567 FreeLibrary( handle );
573 /*****************************************************************************
575 *****************************************************************************/
576 static void CloseDll( decoder_t *p_dec )
578 decoder_sys_t *p_sys = p_dec->p_sys;
580 if( p_sys->context && p_sys->dll )
582 p_sys->raFreeDecoder( p_sys->context );
583 p_sys->raCloseCodec( p_sys->context );
586 if( p_sys->context && p_sys->win32_dll )
588 p_sys->wraFreeDecoder( p_sys->context );
589 p_sys->wraCloseCodec( p_sys->context );
592 #if defined(HAVE_DL_DLOPEN)
593 if( p_sys->dll ) dlclose( p_sys->dll );
596 #if defined(LOADER) || defined(WIN32)
597 if( p_sys->win32_dll ) FreeLibrary( p_sys->win32_dll );
599 #if 0 //def LOADER /* Segfaults */
600 Restore_LDT_Keeper( p_sys->ldt_fs );
601 msg_Dbg( p_dec, "Restore_LDT_Keeper" );
606 p_sys->win32_dll = 0;
610 /*****************************************************************************
612 *****************************************************************************/
613 static aout_buffer_t *Decode( decoder_t *p_dec, block_t **pp_block )
615 decoder_sys_t *p_sys = p_dec->p_sys;
616 aout_buffer_t *p_aout_buffer = 0;
617 unsigned int i_result;
622 if( !p_sys->win32_dll && !p_sys->dll )
624 /* We must do open and close in the same thread (unless we do
625 * Setup_LDT_Keeper in the main thread before all others */
626 if( OpenDll( p_dec ) != VLC_SUCCESS )
629 p_dec->b_error = VLC_TRUE;
635 if( pp_block == NULL || *pp_block == NULL ) return NULL;
639 i_result = p_sys->raDecode( p_sys->context, (char *)p_block->p_buffer,
640 (unsigned long)p_block->i_buffer,
641 p_sys->p_out, &p_sys->i_out, -1 );
643 i_result = p_sys->wraDecode( p_sys->context, (char *)p_block->p_buffer,
644 (unsigned long)p_block->i_buffer,
645 p_sys->p_out, &p_sys->i_out, -1 );
648 msg_Err( p_dec, "decoded: %i samples (%i)",
649 p_sys->i_out * 8 / p_dec->fmt_out.audio.i_bitspersample /
650 p_dec->fmt_out.audio.i_channels, i_result );
653 /* Date management */
654 if( p_block->i_pts > 0 &&
655 p_block->i_pts != aout_DateGet( &p_sys->end_date ) )
657 aout_DateSet( &p_sys->end_date, p_block->i_pts );
660 if( !aout_DateGet( &p_sys->end_date ) )
662 /* We've just started the stream, wait for the first PTS. */
663 if( p_block ) block_Release( p_block );
667 i_samples = p_sys->i_out * 8 /
668 p_dec->fmt_out.audio.i_bitspersample /p_dec->fmt_out.audio.i_channels;
671 p_dec->pf_aout_buffer_new( p_dec, i_samples );
674 memcpy( p_aout_buffer->p_buffer, p_sys->p_out, p_sys->i_out );
676 /* Date management */
677 p_aout_buffer->start_date = aout_DateGet( &p_sys->end_date );
678 p_aout_buffer->end_date =
679 aout_DateIncrement( &p_sys->end_date, i_samples );
682 block_Release( p_block );
684 return p_aout_buffer;