1 /*****************************************************************************
2 * vorbis.c: vorbis decoder/encoder/packetizer module using of libvorbis.
3 *****************************************************************************
4 * Copyright (C) 2001-2003 the VideoLAN team
5 * Copyright (C) 2007 Société des arts technologiques
6 * Copyright (C) 2007 Savoir-faire Linux
10 * Authors: Gildas Bazin <gbazin@videolan.org>
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
25 *****************************************************************************/
27 /*****************************************************************************
29 *****************************************************************************/
35 #include <vlc_codec.h>
37 #include <vlc_input.h>
38 #include <vlc_playlist.h>
43 #ifdef MODULE_NAME_IS_tremor
44 #include <tremor/ivorbiscodec.h>
47 #include <vorbis/codec.h>
50 #ifdef HAVE_VORBIS_VORBISENC_H
51 # include <vorbis/vorbisenc.h>
52 # ifndef OV_ECTL_RATEMANAGE_AVG
53 # define OV_ECTL_RATEMANAGE_AVG 0x0
59 /*****************************************************************************
60 * decoder_sys_t : vorbis decoder descriptor
61 *****************************************************************************/
75 vorbis_info vi; /* struct that stores all the static vorbis bitstream
77 vorbis_comment vc; /* struct that stores all the bitstream user
79 vorbis_dsp_state vd; /* central working state for the packet->PCM
81 vorbis_block vb; /* local working space for packet->PCM decode */
86 audio_date_t end_date;
87 int i_last_block_size;
94 int pi_chan_table[AOUT_CHAN_MAX];
97 static int pi_channels_maps[9] =
101 AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
102 AOUT_CHAN_CENTER | AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
103 AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_REARLEFT
104 | AOUT_CHAN_REARRIGHT,
105 AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
106 | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT,
107 AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
108 | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT | AOUT_CHAN_LFE,
109 AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
110 | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT | AOUT_CHAN_MIDDLELEFT
111 | AOUT_CHAN_MIDDLERIGHT,
112 AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER | AOUT_CHAN_REARLEFT
113 | AOUT_CHAN_REARRIGHT | AOUT_CHAN_MIDDLELEFT | AOUT_CHAN_MIDDLERIGHT
118 ** channel order as defined in http://www.ogghelp.com/ogg/glossary.cfm#Audio_Channels
121 /* recommended vorbis channel order for 6 channels */
122 static const uint32_t pi_6channels_in[] =
123 { AOUT_CHAN_LEFT, AOUT_CHAN_CENTER, AOUT_CHAN_RIGHT,
124 AOUT_CHAN_REARLEFT, AOUT_CHAN_REARRIGHT,AOUT_CHAN_LFE,0 };
126 /* recommended vorbis channel order for 4 channels */
127 static const uint32_t pi_4channels_in[] =
128 { AOUT_CHAN_LEFT, AOUT_CHAN_RIGHT, AOUT_CHAN_CENTER, AOUT_CHAN_LFE, 0 };
130 /* recommended vorbis channel order for 3 channels */
131 static const uint32_t pi_3channels_in[] =
132 { AOUT_CHAN_LEFT, AOUT_CHAN_CENTER, AOUT_CHAN_RIGHT, 0 };
134 /* our internal channel order (WG-4 order) */
135 static const uint32_t pi_channels_out[] =
136 { AOUT_CHAN_LEFT, AOUT_CHAN_RIGHT, AOUT_CHAN_REARLEFT, AOUT_CHAN_REARRIGHT,
137 AOUT_CHAN_CENTER, AOUT_CHAN_LFE, 0 };
139 /****************************************************************************
141 ****************************************************************************/
142 static int OpenDecoder ( vlc_object_t * );
143 static int OpenPacketizer( vlc_object_t * );
144 static void CloseDecoder ( vlc_object_t * );
145 static void *DecodeBlock ( decoder_t *, block_t ** );
147 static int ProcessHeaders( decoder_t * );
148 static void *ProcessPacket ( decoder_t *, ogg_packet *, block_t ** );
150 static aout_buffer_t *DecodePacket ( decoder_t *, ogg_packet * );
151 static block_t *SendPacket( decoder_t *, ogg_packet *, block_t * );
153 static void ParseVorbisComments( decoder_t * );
155 static void ConfigureChannelOrder(int *, int, uint32_t, bool );
157 #ifdef MODULE_NAME_IS_tremor
158 static void Interleave ( int32_t *, const int32_t **, int, int, int * );
160 static void Interleave ( float *, const float **, int, int, int * );
163 #ifndef MODULE_NAME_IS_tremor
164 static int OpenEncoder ( vlc_object_t * );
165 static void CloseEncoder ( vlc_object_t * );
166 static block_t *Encode ( encoder_t *, aout_buffer_t * );
169 /*****************************************************************************
171 *****************************************************************************/
172 #define ENC_QUALITY_TEXT N_("Encoding quality")
173 #define ENC_QUALITY_LONGTEXT N_( \
174 "Enforce a quality between 1 (low) and 10 (high), instead " \
175 "of specifying a particular bitrate. This will produce a VBR stream." )
176 #define ENC_MAXBR_TEXT N_("Maximum encoding bitrate")
177 #define ENC_MAXBR_LONGTEXT N_( \
178 "Maximum bitrate in kbps. This is useful for streaming applications." )
179 #define ENC_MINBR_TEXT N_("Minimum encoding bitrate")
180 #define ENC_MINBR_LONGTEXT N_( \
181 "Minimum bitrate in kbps. This is useful for encoding for a fixed-size channel." )
182 #define ENC_CBR_TEXT N_("CBR encoding")
183 #define ENC_CBR_LONGTEXT N_( \
184 "Force a constant bitrate encoding (CBR)." )
187 set_shortname( "Vorbis" );
188 set_description( _("Vorbis audio decoder") );
189 #ifdef MODULE_NAME_IS_tremor
190 set_capability( "decoder", 90 );
192 set_capability( "decoder", 100 );
194 set_category( CAT_INPUT );
195 set_subcategory( SUBCAT_INPUT_ACODEC );
196 set_callbacks( OpenDecoder, CloseDecoder );
199 set_description( _("Vorbis audio packetizer") );
200 set_capability( "packetizer", 100 );
201 set_callbacks( OpenPacketizer, CloseDecoder );
203 #ifndef MODULE_NAME_IS_tremor
204 # define ENC_CFG_PREFIX "sout-vorbis-"
206 set_description( _("Vorbis audio encoder") );
207 set_capability( "encoder", 100 );
208 #if defined(HAVE_VORBIS_VORBISENC_H)
209 set_callbacks( OpenEncoder, CloseEncoder );
212 add_integer( ENC_CFG_PREFIX "quality", 0, NULL, ENC_QUALITY_TEXT,
213 ENC_QUALITY_LONGTEXT, false );
214 add_integer( ENC_CFG_PREFIX "max-bitrate", 0, NULL, ENC_MAXBR_TEXT,
215 ENC_MAXBR_LONGTEXT, false );
216 add_integer( ENC_CFG_PREFIX "min-bitrate", 0, NULL, ENC_MINBR_TEXT,
217 ENC_MINBR_LONGTEXT, false );
218 add_bool( ENC_CFG_PREFIX "cbr", 0, NULL, ENC_CBR_TEXT,
219 ENC_CBR_LONGTEXT, false );
224 #ifndef MODULE_NAME_IS_tremor
225 static const char *ppsz_enc_options[] = {
226 "quality", "max-bitrate", "min-bitrate", "cbr", NULL
230 /*****************************************************************************
231 * OpenDecoder: probe the decoder and return score
232 *****************************************************************************/
233 static int OpenDecoder( vlc_object_t *p_this )
235 decoder_t *p_dec = (decoder_t*)p_this;
236 decoder_sys_t *p_sys;
238 if( p_dec->fmt_in.i_codec != VLC_FOURCC('v','o','r','b') )
243 /* Allocate the memory needed to store the decoder's structure */
244 if( ( p_dec->p_sys = p_sys =
245 (decoder_sys_t *)malloc(sizeof(decoder_sys_t)) ) == NULL )
247 msg_Err( p_dec, "out of memory" );
252 aout_DateSet( &p_sys->end_date, 0 );
253 p_sys->i_last_block_size = 0;
254 p_sys->b_packetizer = false;
255 p_sys->i_headers = 0;
256 p_sys->i_input_rate = INPUT_RATE_DEFAULT;
258 /* Take care of vorbis init */
259 vorbis_info_init( &p_sys->vi );
260 vorbis_comment_init( &p_sys->vc );
262 /* Set output properties */
263 p_dec->fmt_out.i_cat = AUDIO_ES;
264 #ifdef MODULE_NAME_IS_tremor
265 p_dec->fmt_out.i_codec = VLC_FOURCC('f','i','3','2');
267 p_dec->fmt_out.i_codec = VLC_FOURCC('f','l','3','2');
271 p_dec->pf_decode_audio = (aout_buffer_t *(*)(decoder_t *, block_t **))
273 p_dec->pf_packetize = (block_t *(*)(decoder_t *, block_t **))
279 static int OpenPacketizer( vlc_object_t *p_this )
281 decoder_t *p_dec = (decoder_t*)p_this;
283 int i_ret = OpenDecoder( p_this );
285 if( i_ret == VLC_SUCCESS )
287 p_dec->p_sys->b_packetizer = true;
288 p_dec->fmt_out.i_codec = VLC_FOURCC('v','o','r','b');
294 /****************************************************************************
295 * DecodeBlock: the whole thing
296 ****************************************************************************
297 * This function must be fed with ogg packets.
298 ****************************************************************************/
299 static void *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
301 decoder_sys_t *p_sys = p_dec->p_sys;
302 ogg_packet oggpacket;
304 if( !pp_block ) return NULL;
308 /* Block to Ogg packet */
309 oggpacket.packet = (*pp_block)->p_buffer;
310 oggpacket.bytes = (*pp_block)->i_buffer;
312 if( (*pp_block)->i_rate > 0 )
313 p_sys->i_input_rate = (*pp_block)->i_rate;
317 if( p_sys->b_packetizer ) return NULL;
319 /* Block to Ogg packet */
320 oggpacket.packet = NULL;
324 oggpacket.granulepos = -1;
327 oggpacket.packetno = 0;
329 /* Check for headers */
330 if( p_sys->i_headers == 0 && p_dec->fmt_in.i_extra )
332 /* Headers already available as extra data */
333 msg_Dbg( p_dec, "headers already available as extra data" );
334 p_sys->i_headers = 3;
336 else if( oggpacket.bytes && p_sys->i_headers < 3 )
338 /* Backup headers as extra data */
341 p_dec->fmt_in.p_extra =
342 realloc( p_dec->fmt_in.p_extra, p_dec->fmt_in.i_extra +
343 oggpacket.bytes + 2 );
344 p_extra = (uint8_t *)p_dec->fmt_in.p_extra + p_dec->fmt_in.i_extra;
345 *(p_extra++) = oggpacket.bytes >> 8;
346 *(p_extra++) = oggpacket.bytes & 0xFF;
348 memcpy( p_extra, oggpacket.packet, oggpacket.bytes );
349 p_dec->fmt_in.i_extra += oggpacket.bytes + 2;
351 block_Release( *pp_block );
356 if( p_sys->i_headers == 3 )
358 if( ProcessHeaders( p_dec ) != VLC_SUCCESS )
360 p_sys->i_headers = 0;
361 p_dec->fmt_in.i_extra = 0;
362 block_Release( *pp_block );
365 else p_sys->i_headers++;
368 return ProcessPacket( p_dec, &oggpacket, pp_block );
371 /*****************************************************************************
372 * ProcessHeaders: process Vorbis headers.
373 *****************************************************************************/
374 static int ProcessHeaders( decoder_t *p_dec )
376 decoder_sys_t *p_sys = p_dec->p_sys;
377 ogg_packet oggpacket;
381 if( !p_dec->fmt_in.i_extra ) return VLC_EGENERIC;
383 oggpacket.granulepos = -1;
384 oggpacket.b_o_s = 1; /* yes this actually is a b_o_s packet :) */
386 oggpacket.packetno = 0;
387 p_extra = p_dec->fmt_in.p_extra;
388 i_extra = p_dec->fmt_in.i_extra;
390 /* Take care of the initial Vorbis header */
391 oggpacket.bytes = *(p_extra++) << 8;
392 oggpacket.bytes |= (*(p_extra++) & 0xFF);
393 oggpacket.packet = p_extra;
394 p_extra += oggpacket.bytes;
395 i_extra -= (oggpacket.bytes + 2);
398 msg_Err( p_dec, "header data corrupted");
402 if( vorbis_synthesis_headerin( &p_sys->vi, &p_sys->vc, &oggpacket ) < 0 )
404 msg_Err( p_dec, "this bitstream does not contain Vorbis audio data");
408 /* Setup the format */
409 p_dec->fmt_out.audio.i_rate = p_sys->vi.rate;
410 p_dec->fmt_out.audio.i_channels = p_sys->vi.channels;
412 if( p_dec->fmt_out.audio.i_channels > 9 )
414 msg_Err( p_dec, "invalid number of channels (not between 1 and 9): %i",
415 p_dec->fmt_out.audio.i_channels );
419 p_dec->fmt_out.audio.i_physical_channels =
420 p_dec->fmt_out.audio.i_original_channels =
421 pi_channels_maps[p_sys->vi.channels];
422 p_dec->fmt_out.i_bitrate = p_sys->vi.bitrate_nominal;
424 aout_DateInit( &p_sys->end_date, p_sys->vi.rate );
426 msg_Dbg( p_dec, "channels:%d samplerate:%ld bitrate:%ld",
427 p_sys->vi.channels, p_sys->vi.rate, p_sys->vi.bitrate_nominal );
429 /* The next packet in order is the comments header */
431 oggpacket.bytes = *(p_extra++) << 8;
432 oggpacket.bytes |= (*(p_extra++) & 0xFF);
433 oggpacket.packet = p_extra;
434 p_extra += oggpacket.bytes;
435 i_extra -= (oggpacket.bytes + 2);
438 msg_Err( p_dec, "header data corrupted");
442 if( vorbis_synthesis_headerin( &p_sys->vi, &p_sys->vc, &oggpacket ) < 0 )
444 msg_Err( p_dec, "2nd Vorbis header is corrupted" );
447 ParseVorbisComments( p_dec );
449 /* The next packet in order is the codebooks header
450 * We need to watch out that this packet is not missing as a
451 * missing or corrupted header is fatal. */
452 oggpacket.bytes = *(p_extra++) << 8;
453 oggpacket.bytes |= (*(p_extra++) & 0xFF);
454 oggpacket.packet = p_extra;
455 i_extra -= (oggpacket.bytes + 2);
458 msg_Err( p_dec, "header data corrupted");
462 if( vorbis_synthesis_headerin( &p_sys->vi, &p_sys->vc, &oggpacket ) < 0 )
464 msg_Err( p_dec, "3rd Vorbis header is corrupted" );
468 if( !p_sys->b_packetizer )
470 /* Initialize the Vorbis packet->PCM decoder */
471 vorbis_synthesis_init( &p_sys->vd, &p_sys->vi );
472 vorbis_block_init( &p_sys->vd, &p_sys->vb );
476 p_dec->fmt_out.i_extra = p_dec->fmt_in.i_extra;
477 p_dec->fmt_out.p_extra =
478 realloc( p_dec->fmt_out.p_extra, p_dec->fmt_out.i_extra );
479 memcpy( p_dec->fmt_out.p_extra,
480 p_dec->fmt_in.p_extra, p_dec->fmt_out.i_extra );
483 ConfigureChannelOrder(p_sys->pi_chan_table, p_sys->vi.channels,
484 p_dec->fmt_out.audio.i_physical_channels, true);
489 /*****************************************************************************
490 * ProcessPacket: processes a Vorbis packet.
491 *****************************************************************************/
492 static void *ProcessPacket( decoder_t *p_dec, ogg_packet *p_oggpacket,
495 decoder_sys_t *p_sys = p_dec->p_sys;
496 block_t *p_block = *pp_block;
498 /* Date management */
499 if( p_block && p_block->i_pts > 0 &&
500 p_block->i_pts != aout_DateGet( &p_sys->end_date ) )
502 aout_DateSet( &p_sys->end_date, p_block->i_pts );
505 if( !aout_DateGet( &p_sys->end_date ) )
507 /* We've just started the stream, wait for the first PTS. */
508 if( p_block ) block_Release( p_block );
512 *pp_block = NULL; /* To avoid being fed the same packet again */
514 if( p_sys->b_packetizer )
516 return SendPacket( p_dec, p_oggpacket, p_block );
520 aout_buffer_t *p_aout_buffer;
522 if( p_sys->i_headers >= 3 )
523 p_aout_buffer = DecodePacket( p_dec, p_oggpacket );
525 p_aout_buffer = NULL;
527 if( p_block ) block_Release( p_block );
528 return p_aout_buffer;
532 /*****************************************************************************
533 * DecodePacket: decodes a Vorbis packet.
534 *****************************************************************************/
535 static aout_buffer_t *DecodePacket( decoder_t *p_dec, ogg_packet *p_oggpacket )
537 decoder_sys_t *p_sys = p_dec->p_sys;
540 #ifdef MODULE_NAME_IS_tremor
546 if( p_oggpacket->bytes &&
547 #ifdef MODULE_NAME_IS_tremor
548 vorbis_synthesis( &p_sys->vb, p_oggpacket, 1 ) == 0 )
550 vorbis_synthesis( &p_sys->vb, p_oggpacket ) == 0 )
552 vorbis_synthesis_blockin( &p_sys->vd, &p_sys->vb );
554 /* **pp_pcm is a multichannel float vector. In stereo, for
555 * example, pp_pcm[0] is left, and pp_pcm[1] is right. i_samples is
556 * the size of each channel. Convert the float values
557 * (-1.<=range<=1.) to whatever PCM format and write it out */
559 if( ( i_samples = vorbis_synthesis_pcmout( &p_sys->vd, &pp_pcm ) ) > 0 )
562 aout_buffer_t *p_aout_buffer;
565 p_dec->pf_aout_buffer_new( p_dec, i_samples );
567 if( p_aout_buffer == NULL ) return NULL;
569 /* Interleave the samples */
570 #ifdef MODULE_NAME_IS_tremor
571 Interleave( (int32_t *)p_aout_buffer->p_buffer,
572 (const int32_t **)pp_pcm, p_sys->vi.channels, i_samples, p_sys->pi_chan_table);
574 Interleave( (float *)p_aout_buffer->p_buffer,
575 (const float **)pp_pcm, p_sys->vi.channels, i_samples, p_sys->pi_chan_table);
578 /* Tell libvorbis how many samples we actually consumed */
579 vorbis_synthesis_read( &p_sys->vd, i_samples );
581 /* Date management */
582 p_aout_buffer->start_date = aout_DateGet( &p_sys->end_date );
583 p_aout_buffer->end_date = aout_DateIncrement( &p_sys->end_date,
584 i_samples * p_sys->i_input_rate / INPUT_RATE_DEFAULT );
585 return p_aout_buffer;
593 /*****************************************************************************
594 * SendPacket: send an ogg dated packet to the stream output.
595 *****************************************************************************/
596 static block_t *SendPacket( decoder_t *p_dec, ogg_packet *p_oggpacket,
599 decoder_sys_t *p_sys = p_dec->p_sys;
600 int i_block_size, i_samples;
602 i_block_size = vorbis_packet_blocksize( &p_sys->vi, p_oggpacket );
603 if( i_block_size < 0 ) i_block_size = 0; /* non audio packet */
604 i_samples = ( p_sys->i_last_block_size + i_block_size ) >> 2;
605 p_sys->i_last_block_size = i_block_size;
607 /* Date management */
608 p_block->i_dts = p_block->i_pts = aout_DateGet( &p_sys->end_date );
610 if( p_sys->i_headers >= 3 )
611 p_block->i_length = aout_DateIncrement( &p_sys->end_date,
612 i_samples * p_sys->i_input_rate / INPUT_RATE_DEFAULT ) -
615 p_block->i_length = 0;
620 /*****************************************************************************
621 * ParseVorbisComments
622 *****************************************************************************/
623 static void ParseVorbisComments( decoder_t *p_dec )
625 input_thread_t *p_input = (input_thread_t *)p_dec->p_parent;
626 char *psz_name, *psz_value, *psz_comment;
627 input_item_t *p_item;
630 if( p_input->i_object_type != VLC_OBJECT_INPUT ) return;
632 p_item = input_GetItem( p_input );
634 while( i < p_dec->p_sys->vc.comments )
636 psz_comment = strdup( p_dec->p_sys->vc.user_comments[i] );
639 msg_Warn( p_dec, "out of memory" );
642 psz_name = psz_comment;
643 psz_value = strchr( psz_comment, '=' );
648 input_Control( p_input, INPUT_ADD_INFO, _("Vorbis comment"),
649 psz_name, "%s", psz_value );
651 if( !strcasecmp( psz_name, "artist" ) )
653 if( psz_value && ( *psz_value != '\0' ) )
655 input_item_SetArtist( p_item, psz_value );
658 else if( !strcasecmp( psz_name, "title" ) )
660 if( psz_value && ( *psz_value != '\0' ) )
662 input_item_SetTitle( p_item, psz_value );
663 p_item->psz_name = strdup( psz_value );
666 else if( !strcasecmp( psz_name, "album" ) )
668 if( psz_value && ( *psz_value != '\0' ) )
670 input_item_SetAlbum( p_item, psz_value );
673 else if( !strcasecmp( psz_name, "musicbrainz_trackid" ) )
675 if( psz_value && ( *psz_value != '\0' ) )
677 input_item_SetTrackID( p_item, psz_value );
681 else if( !strcasecmp( psz_name, "musicbrainz_artistid" ) )
683 if( psz_value && ( *psz_value != '\0' ) )
685 vlc_meta_SetArtistID( p_item, psz_value );
688 else if( !strcasecmp( psz_name, "musicbrainz_albumid" ) )
690 if( psz_value && ( *psz_value != '\0' ) )
692 input_item_SetAlbumID( p_item, psz_value );
697 if( !strcasecmp( psz_name, "REPLAYGAIN_TRACK_GAIN" ) ||
698 !strcasecmp( psz_name, "RG_RADIO" ) )
700 audio_replay_gain_t *r = &p_dec->fmt_out.audio_replay_gain;
702 r->pb_gain[AUDIO_REPLAY_GAIN_TRACK] = true;
703 r->pf_gain[AUDIO_REPLAY_GAIN_TRACK] = atof( psz_value );
705 else if( !strcasecmp( psz_name, "REPLAYGAIN_TRACK_PEAK" ) ||
706 !strcasecmp( psz_name, "RG_PEAK" ) )
708 audio_replay_gain_t *r = &p_dec->fmt_out.audio_replay_gain;
710 r->pb_peak[AUDIO_REPLAY_GAIN_TRACK] = true;
711 r->pf_peak[AUDIO_REPLAY_GAIN_TRACK] = atof( psz_value );
713 else if( !strcasecmp( psz_name, "REPLAYGAIN_ALBUM_GAIN" ) ||
714 !strcasecmp( psz_name, "RG_AUDIOPHILE" ) )
716 audio_replay_gain_t *r = &p_dec->fmt_out.audio_replay_gain;
718 r->pb_gain[AUDIO_REPLAY_GAIN_ALBUM] = true;
719 r->pf_gain[AUDIO_REPLAY_GAIN_ALBUM] = atof( psz_value );
721 else if( !strcasecmp( psz_name, "REPLAYGAIN_ALBUM_PEAK" ) )
723 audio_replay_gain_t *r = &p_dec->fmt_out.audio_replay_gain;
725 r->pb_peak[AUDIO_REPLAY_GAIN_ALBUM] = true;
726 r->pf_peak[AUDIO_REPLAY_GAIN_ALBUM] = atof( psz_value );
729 var_SetInteger( pl_Yield( p_input ), "item-change", p_item->i_id );
730 pl_Release( p_input );
736 /*****************************************************************************
737 * Interleave: helper function to interleave channels
738 *****************************************************************************/
739 static void ConfigureChannelOrder(int *pi_chan_table, int i_channels, uint32_t i_channel_mask, bool b_decode)
741 const uint32_t *pi_channels_in;
746 pi_channels_in = pi_6channels_in;
749 pi_channels_in = pi_4channels_in;
752 pi_channels_in = pi_3channels_in;
757 for( i = 0; i< i_channels; ++i )
759 pi_chan_table[i] = i;
766 aout_CheckChannelReorder( pi_channels_in, pi_channels_out,
767 i_channel_mask & AOUT_CHAN_PHYSMASK,
771 aout_CheckChannelReorder( pi_channels_out, pi_channels_in,
772 i_channel_mask & AOUT_CHAN_PHYSMASK,
777 /*****************************************************************************
778 * Interleave: helper function to interleave channels
779 *****************************************************************************/
780 #ifdef MODULE_NAME_IS_tremor
781 static void Interleave( int32_t *p_out, const int32_t **pp_in,
782 int i_nb_channels, int i_samples, int *pi_chan_table)
786 for ( j = 0; j < i_samples; j++ )
787 for ( i = 0; i < i_nb_channels; i++ )
788 p_out[j * i_nb_channels + pi_chan_table[i]] = pp_in[i][j] * (FIXED32_ONE >> 24);
791 static void Interleave( float *p_out, const float **pp_in,
792 int i_nb_channels, int i_samples, int *pi_chan_table )
796 for ( j = 0; j < i_samples; j++ )
797 for ( i = 0; i < i_nb_channels; i++ )
798 p_out[j * i_nb_channels + pi_chan_table[i]] = pp_in[i][j];
802 /*****************************************************************************
803 * CloseDecoder: vorbis decoder destruction
804 *****************************************************************************/
805 static void CloseDecoder( vlc_object_t *p_this )
807 decoder_t *p_dec = (decoder_t *)p_this;
808 decoder_sys_t *p_sys = p_dec->p_sys;
810 if( !p_sys->b_packetizer && p_sys->i_headers > 3 )
812 vorbis_block_clear( &p_sys->vb );
813 vorbis_dsp_clear( &p_sys->vd );
816 vorbis_comment_clear( &p_sys->vc );
817 vorbis_info_clear( &p_sys->vi ); /* must be called last */
822 #if defined(HAVE_VORBIS_VORBISENC_H) && !defined(MODULE_NAME_IS_tremor)
824 /*****************************************************************************
825 * encoder_sys_t : vorbis encoder descriptor
826 *****************************************************************************/
832 vorbis_info vi; /* struct that stores all the static vorbis bitstream
834 vorbis_comment vc; /* struct that stores all the bitstream user
836 vorbis_dsp_state vd; /* central working state for the packet->PCM
838 vorbis_block vb; /* local working space for packet->PCM decode */
840 int i_last_block_size;
850 ** Channel reordering
852 int pi_chan_table[AOUT_CHAN_MAX];
856 /*****************************************************************************
857 * OpenEncoder: probe the encoder and return score
858 *****************************************************************************/
859 static int OpenEncoder( vlc_object_t *p_this )
861 encoder_t *p_enc = (encoder_t *)p_this;
862 encoder_sys_t *p_sys;
863 int i_quality, i_min_bitrate, i_max_bitrate, i;
864 ogg_packet header[3];
868 if( p_enc->fmt_out.i_codec != VLC_FOURCC('v','o','r','b') &&
874 /* Allocate the memory needed to store the decoder's structure */
875 if( ( p_sys = (encoder_sys_t *)malloc(sizeof(encoder_sys_t)) ) == NULL )
877 msg_Err( p_enc, "out of memory" );
880 p_enc->p_sys = p_sys;
882 p_enc->pf_encode_audio = Encode;
883 p_enc->fmt_in.i_codec = VLC_FOURCC('f','l','3','2');
884 p_enc->fmt_out.i_codec = VLC_FOURCC('v','o','r','b');
886 config_ChainParse( p_enc, ENC_CFG_PREFIX, ppsz_enc_options, p_enc->p_cfg );
888 var_Get( p_enc, ENC_CFG_PREFIX "quality", &val );
889 i_quality = val.i_int;
890 if( i_quality > 10 ) i_quality = 10;
891 if( i_quality < 0 ) i_quality = 0;
892 var_Get( p_enc, ENC_CFG_PREFIX "cbr", &val );
893 if( val.b_bool ) i_quality = 0;
894 var_Get( p_enc, ENC_CFG_PREFIX "max-bitrate", &val );
895 i_max_bitrate = val.i_int;
896 var_Get( p_enc, ENC_CFG_PREFIX "min-bitrate", &val );
897 i_min_bitrate = val.i_int;
899 /* Initialize vorbis encoder */
900 vorbis_info_init( &p_sys->vi );
905 if( vorbis_encode_setup_vbr( &p_sys->vi,
906 p_enc->fmt_in.audio.i_channels, p_enc->fmt_in.audio.i_rate,
909 vorbis_info_clear( &p_sys->vi );
910 free( p_enc->p_sys );
911 msg_Err( p_enc, "VBR mode initialisation failed" );
915 /* Do we have optional hard quality restrictions? */
916 if( i_max_bitrate > 0 || i_min_bitrate > 0 )
918 struct ovectl_ratemanage_arg ai;
919 vorbis_encode_ctl( &p_sys->vi, OV_ECTL_RATEMANAGE_GET, &ai );
921 ai.bitrate_hard_min = i_min_bitrate;
922 ai.bitrate_hard_max = i_max_bitrate;
923 ai.management_active = 1;
925 vorbis_encode_ctl( &p_sys->vi, OV_ECTL_RATEMANAGE_SET, &ai );
930 /* Turn off management entirely */
931 vorbis_encode_ctl( &p_sys->vi, OV_ECTL_RATEMANAGE_SET, NULL );
936 if( vorbis_encode_setup_managed( &p_sys->vi,
937 p_enc->fmt_in.audio.i_channels, p_enc->fmt_in.audio.i_rate,
938 i_min_bitrate > 0 ? i_min_bitrate * 1000: -1,
939 p_enc->fmt_out.i_bitrate,
940 i_max_bitrate > 0 ? i_max_bitrate * 1000: -1 ) )
942 vorbis_info_clear( &p_sys->vi );
943 msg_Err( p_enc, "CBR mode initialisation failed" );
944 free( p_enc->p_sys );
949 vorbis_encode_setup_init( &p_sys->vi );
952 vorbis_comment_init( &p_sys->vc);
953 vorbis_comment_add_tag( &p_sys->vc, "ENCODER", "VLC media player");
955 /* Set up the analysis state and auxiliary encoding storage */
956 vorbis_analysis_init( &p_sys->vd, &p_sys->vi );
957 vorbis_block_init( &p_sys->vd, &p_sys->vb );
959 /* Create and store headers */
960 vorbis_analysis_headerout( &p_sys->vd, &p_sys->vc,
961 &header[0], &header[1], &header[2]);
962 p_enc->fmt_out.i_extra = 3 * 2 + header[0].bytes +
963 header[1].bytes + header[2].bytes;
964 p_extra = p_enc->fmt_out.p_extra = malloc( p_enc->fmt_out.i_extra );
965 for( i = 0; i < 3; i++ )
967 *(p_extra++) = header[i].bytes >> 8;
968 *(p_extra++) = header[i].bytes & 0xFF;
969 memcpy( p_extra, header[i].packet, header[i].bytes );
970 p_extra += header[i].bytes;
973 p_sys->i_channels = p_enc->fmt_in.audio.i_channels;
974 p_sys->i_last_block_size = 0;
975 p_sys->i_samples_delay = 0;
978 ConfigureChannelOrder(p_sys->pi_chan_table, p_sys->vi.channels,
979 p_enc->fmt_in.audio.i_physical_channels, true);
984 /****************************************************************************
985 * Encode: the whole thing
986 ****************************************************************************
987 * This function spits out ogg packets.
988 ****************************************************************************/
989 static block_t *Encode( encoder_t *p_enc, aout_buffer_t *p_aout_buf )
991 encoder_sys_t *p_sys = p_enc->p_sys;
992 ogg_packet oggpacket;
993 block_t *p_block, *p_chain = NULL;
998 p_sys->i_pts = p_aout_buf->start_date -
999 (mtime_t)1000000 * (mtime_t)p_sys->i_samples_delay /
1000 (mtime_t)p_enc->fmt_in.audio.i_rate;
1002 p_sys->i_samples_delay += p_aout_buf->i_nb_samples;
1004 buffer = vorbis_analysis_buffer( &p_sys->vd, p_aout_buf->i_nb_samples );
1006 /* convert samples to float and uninterleave */
1007 for( i = 0; i < p_sys->i_channels; i++ )
1009 for( j = 0 ; j < p_aout_buf->i_nb_samples ; j++ )
1011 buffer[i][j]= ((float *)p_aout_buf->p_buffer)
1012 [j * p_sys->i_channels + p_sys->pi_chan_table[i]];
1016 vorbis_analysis_wrote( &p_sys->vd, p_aout_buf->i_nb_samples );
1018 while( vorbis_analysis_blockout( &p_sys->vd, &p_sys->vb ) == 1 )
1022 vorbis_analysis( &p_sys->vb, NULL );
1023 vorbis_bitrate_addblock( &p_sys->vb );
1025 while( vorbis_bitrate_flushpacket( &p_sys->vd, &oggpacket ) )
1028 p_block = block_New( p_enc, oggpacket.bytes );
1029 memcpy( p_block->p_buffer, oggpacket.packet, oggpacket.bytes );
1031 i_block_size = vorbis_packet_blocksize( &p_sys->vi, &oggpacket );
1033 if( i_block_size < 0 ) i_block_size = 0;
1034 i_samples = ( p_sys->i_last_block_size + i_block_size ) >> 2;
1035 p_sys->i_last_block_size = i_block_size;
1037 p_block->i_length = (mtime_t)1000000 *
1038 (mtime_t)i_samples / (mtime_t)p_enc->fmt_in.audio.i_rate;
1040 p_block->i_dts = p_block->i_pts = p_sys->i_pts;
1042 p_sys->i_samples_delay -= i_samples;
1045 p_sys->i_pts += p_block->i_length;
1046 block_ChainAppend( &p_chain, p_block );
1053 /*****************************************************************************
1054 * CloseEncoder: vorbis encoder destruction
1055 *****************************************************************************/
1056 static void CloseEncoder( vlc_object_t *p_this )
1058 encoder_t *p_enc = (encoder_t *)p_this;
1059 encoder_sys_t *p_sys = p_enc->p_sys;
1061 vorbis_block_clear( &p_sys->vb );
1062 vorbis_dsp_clear( &p_sys->vd );
1063 vorbis_comment_clear( &p_sys->vc );
1064 vorbis_info_clear( &p_sys->vi ); /* must be called last */
1069 #endif /* HAVE_VORBIS_VORBISENC_H && !MODULE_NAME_IS_tremor */