3 * @brief Sidplay demux module for VLC media player
5 /*****************************************************************************
6 * Copyright © 2010 Rémi Denis-Courmont
7 * Copyright © 2010 Alan Fischer <alan@lightningtoads.com>
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU Lesser General Public License as published by
11 * the Free Software Foundation; either version 2.1 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public License
20 * along with this program; if not, write to the Free Software Foundation,
21 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
25 * NOTA BENE: this module requires the linking against a library which is
26 * known to require licensing under the GNU General Public License version 2
27 * (or later). Therefore, the result of compiling this module will normally
28 * be subject to the terms of that later license.
29 *****************************************************************************/
36 /* INT64_C and UINT64_C are only exposed to c++ if this is defined */
37 #ifndef __STDC_CONSTANT_MACROS
38 # define __STDC_CONSTANT_MACROS
41 #include <vlc_common.h>
42 #include <vlc_input.h>
43 #include <vlc_demux.h>
44 #include <vlc_plugin.h>
48 #include <sidplay/sidplay2.h>
49 #include <sidplay/builders/resid.h>
51 static int Open (vlc_object_t *);
52 static void Close (vlc_object_t *);
56 set_description ( N_("C64 sid demuxer") )
57 set_category (CAT_INPUT)
58 set_subcategory (SUBCAT_INPUT_DEMUX)
59 set_capability ("demux", 100)
60 set_callbacks (Open, Close)
78 static int Demux (demux_t *);
79 static int Control (demux_t *, int, va_list);
81 static int Open (vlc_object_t *obj)
83 demux_t *demux = (demux_t *)obj;
84 demux_sys_t *sys = NULL;
88 sidplay2 *player = NULL;
89 ReSIDBuilder *builder = NULL;
91 int64_t size = stream_Size (demux->s);
92 if (size < 4 || size > LONG_MAX) /* We need to load the whole file for sidplay */
96 if (stream_Peek (demux->s, &peek, 4) < 4)
99 /* sidplay2 can read PSID and the newer RSID formats */
100 if(memcmp(peek,"PSID",4)!=0 && memcmp(peek,"RSID",4)!=0)
103 uint8_t *data = (uint8_t*) malloc(size);
104 if (unlikely (data==NULL))
107 if (stream_Read (demux->s,data,size) < size) {
112 tune = new SidTune(0);
113 if (unlikely (tune==NULL)) {
118 result = tune->read (data, size);
123 player = new sidplay2();
124 if (unlikely(player==NULL))
127 sys = (demux_sys_t*) calloc (1, sizeof(demux_sys_t));
128 if (unlikely(sys==NULL))
131 sys->player = player;
134 tune->getInfo (sys->tuneInfo);
136 sys->info = player->info();
137 sys->config = player->config();
139 builder = new ReSIDBuilder ("ReSID");
140 if (unlikely(builder==NULL))
143 builder->create (sys->info.maxsids);
144 builder->sampling (sys->config.frequency);
146 sys->config.sidEmulation = builder;
147 sys->config.precision = 16;
148 sys->config.playback = (sys->info.channels == 2 ? sid2_stereo : sid2_mono);
150 player->config (sys->config);
152 sys->bytes_per_frame = sys->info.channels * sys->config.precision / 8;
153 sys->block_size = sys->config.frequency / 10 * sys->bytes_per_frame;
155 es_format_Init (&fmt, AUDIO_ES, VLC_CODEC_S16N);
157 fmt.audio.i_channels = sys->info.channels;
158 fmt.audio.i_bitspersample = sys->config.precision;
159 fmt.audio.i_rate = sys->config.frequency;
160 fmt.audio.i_bytes_per_frame = sys->bytes_per_frame;
161 fmt.audio.i_frame_length = fmt.audio.i_bytes_per_frame;
162 fmt.audio.i_blockalign = fmt.audio.i_bytes_per_frame;
164 fmt.i_bitrate = fmt.audio.i_rate * fmt.audio.i_bytes_per_frame;
166 sys->es = es_out_Add (demux->out, &fmt);
168 date_Init (&sys->pts, fmt.audio.i_rate, 1);
169 date_Set (&sys->pts, 0);
171 sys->tune->selectSong (0);
172 result = (sys->player->load (sys->tune) >=0 );
173 sys->player->fastForward (100);
178 demux->pf_demux = Demux;
179 demux->pf_control = Control;
185 msg_Err (demux, "An error occurred during sid demuxing" );
194 static void Close (vlc_object_t *obj)
196 demux_t *demux = (demux_t *)obj;
197 demux_sys_t *sys = demux->p_sys;
200 delete sys->config.sidEmulation;
205 static int Demux (demux_t *demux)
207 demux_sys_t *sys = demux->p_sys;
209 block_t *block = block_Alloc( sys->block_size);
210 if (unlikely(block==NULL))
213 if (!sys->tune->getStatus()) {
214 block_Release (block);
218 int i_read = sys->player->play ((void*)block->p_buffer, block->i_buffer);
220 block_Release (block);
223 block->i_buffer = i_read;
224 block->i_pts = block->i_dts = VLC_TS_0 + date_Get (&sys->pts);
226 es_out_Control (demux->out, ES_OUT_SET_PCR, block->i_pts);
228 es_out_Send (demux->out, sys->es, block);
230 date_Increment (&sys->pts, i_read / sys->bytes_per_frame);
236 static int Control (demux_t *demux, int query, va_list args)
238 demux_sys_t *sys = demux->p_sys;
242 case DEMUX_GET_TIME : {
243 int64_t *v = va_arg (args, int64_t*);
244 *v = sys->player->time() * sys->player->timebase() * (CLOCK_FREQ / 100);
248 case DEMUX_GET_META : {
249 vlc_meta_t *p_meta = (vlc_meta_t *) va_arg (args, vlc_meta_t*);
251 /* These are specified in the sid tune class as 0 = Title, 1 = Artist, 2 = Copyright/Publisher */
252 vlc_meta_SetTitle( p_meta, sys->tuneInfo.infoString[0] );
253 vlc_meta_SetArtist( p_meta, sys->tuneInfo.infoString[1] );
254 vlc_meta_SetCopyright( p_meta, sys->tuneInfo.infoString[2] );
259 case DEMUX_GET_TITLE_INFO :
260 if ( sys->tuneInfo.songs > 1 ) {
261 input_title_t ***ppp_title = (input_title_t***) va_arg (args, input_title_t***);
262 int *pi_int = (int*)va_arg( args, int* );
264 *pi_int = sys->tuneInfo.songs;
265 *ppp_title = (input_title_t**) malloc( sizeof (input_title_t**) * sys->tuneInfo.songs);
267 for( int i = 0; i < sys->tuneInfo.songs; i++ ) {
268 (*ppp_title)[i] = vlc_input_title_New();
275 case DEMUX_SET_TITLE : {
276 int i_idx = (int) va_arg (args, int);
277 sys->tune->selectSong (i_idx+1);
278 bool result = (sys->player->load (sys->tune) >=0 );
282 demux->info.i_title = i_idx;
283 demux->info.i_update = INPUT_UPDATE_TITLE;
284 msg_Dbg( demux, "set song %i", i_idx);