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7207a21b MW |
1 | /* |
2 | * This file is part of DisOrder | |
3 | * Copyright (C) 2013 Mark Wooding | |
4 | * | |
5 | * This program is free software: you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation, either version 3 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
17 | */ | |
18 | /** @file server/gstdecode.c | |
19 | * @brief Decode compressed audio files, and apply ReplayGain. | |
20 | */ | |
21 | ||
22 | #include "disorder-server.h" | |
23 | ||
24 | #include "speaker-protocol.h" | |
25 | ||
26 | /* Ugh. It turns out that libxml tries to define a function called | |
27 | * `attribute', and it's included by GStreamer for some unimaginable reason. | |
28 | * So undefine it here. We'll want GCC attributes for special effects, but | |
29 | * can take care of ourselves. | |
30 | */ | |
31 | #undef attribute | |
32 | ||
33 | #include <glib.h> | |
34 | #include <gst/gst.h> | |
35 | #include <gst/app/gstappsink.h> | |
36 | #include <gst/audio/audio.h> | |
37 | ||
38 | /* The only application we have for `attribute' is declaring function | |
39 | * arguments as being unused, because we have a lot of callback functions | |
40 | * which are meant to comply with an externally defined interface. | |
41 | */ | |
42 | #ifdef __GNUC__ | |
43 | # define UNUSED __attribute__((unused)) | |
44 | #endif | |
45 | ||
46 | #define END ((void *)0) | |
47 | #define N(v) (sizeof(v)/sizeof(*(v))) | |
48 | ||
49 | static FILE *fp; | |
50 | static const char *file; | |
51 | static GstAppSink *appsink; | |
52 | static GstElement *pipeline; | |
53 | static GMainLoop *loop; | |
ff56519f MW |
54 | static unsigned flags = 0; |
55 | #define f_stream 1u | |
7207a21b MW |
56 | |
57 | #define MODES(_) _("off", OFF) _("track", TRACK) _("album", ALBUM) | |
58 | enum { | |
59 | #define DEFENUM(name, tag) tag, | |
60 | MODES(DEFENUM) | |
61 | #undef DEFENUM | |
62 | NMODES | |
63 | }; | |
64 | static const char *const modes[] = { | |
65 | #define DEFNAME(name, tag) name, | |
66 | MODES(DEFNAME) | |
67 | #undef DEFNAME | |
68 | 0 | |
69 | }; | |
f5ebedb0 MW |
70 | |
71 | static const char *const dithers[] = { | |
72 | "none", "rpdf", "tpdf", "tpdf-hf", 0 | |
73 | }; | |
74 | ||
75 | static const char *const shapes[] = { | |
76 | "none", "error-feedback", "simple", "medium", "high", 0 | |
77 | }; | |
78 | ||
79 | static int dither = -1; | |
7207a21b | 80 | static int mode = ALBUM; |
c915f0d4 | 81 | static int quality = -1; |
f5ebedb0 MW |
82 | static int shape = -1; |
83 | static gdouble fallback = 0.0; | |
7207a21b MW |
84 | |
85 | static struct stream_header hdr; | |
86 | ||
87 | /* Report the pads of an element ELT, as iterated by IT; WHAT is an adjective | |
88 | * phrase describing the pads for use in the output. | |
89 | */ | |
90 | static void report_element_pads(const char *what, GstElement *elt, | |
91 | GstIterator *it) | |
92 | { | |
93 | gchar *cs; | |
c076146f | 94 | #ifdef HAVE_GSTREAMER_0_10 |
7207a21b | 95 | gpointer pad; |
c076146f MW |
96 | #else |
97 | GValue gv; | |
98 | GstPad *pad; | |
99 | GstCaps *caps; | |
100 | #endif | |
7207a21b MW |
101 | |
102 | for(;;) { | |
c076146f | 103 | #ifdef HAVE_GSTREAMER_0_10 |
7207a21b | 104 | switch(gst_iterator_next(it, &pad)) { |
c076146f MW |
105 | #else |
106 | switch(gst_iterator_next(it, &gv)) { | |
107 | #endif | |
7207a21b MW |
108 | case GST_ITERATOR_DONE: |
109 | goto done; | |
110 | case GST_ITERATOR_OK: | |
c076146f | 111 | #ifdef HAVE_GSTREAMER_0_10 |
6c9b376a | 112 | cs = gst_caps_to_string(GST_PAD_CAPS(pad)); |
c076146f MW |
113 | #else |
114 | assert(G_VALUE_HOLDS(&gv, GST_TYPE_PAD)); | |
115 | pad = g_value_get_object(&gv); | |
116 | caps = gst_pad_query_caps(pad, 0); | |
117 | cs = gst_caps_to_string(caps); | |
3d9c9d54 | 118 | gst_caps_unref(caps); |
c076146f | 119 | #endif |
7207a21b MW |
120 | disorder_error(0, " `%s' %s pad: %s", GST_OBJECT_NAME(elt), what, cs); |
121 | g_free(cs); | |
3d9c9d54 | 122 | gst_object_unref(pad); |
7207a21b MW |
123 | break; |
124 | case GST_ITERATOR_RESYNC: | |
125 | gst_iterator_resync(it); | |
126 | break; | |
127 | case GST_ITERATOR_ERROR: | |
128 | disorder_error(0, "<failed to enumerate `%s' %s pads>", | |
129 | GST_OBJECT_NAME(elt), what); | |
130 | goto done; | |
131 | } | |
132 | } | |
133 | ||
134 | done: | |
135 | gst_iterator_free(it); | |
136 | } | |
137 | ||
138 | /* Link together two elements; fail with an approximately useful error | |
139 | * message if it didn't work. | |
140 | */ | |
141 | static void link_elements(GstElement *left, GstElement *right) | |
142 | { | |
143 | /* Try to link things together. */ | |
144 | if(gst_element_link(left, right)) return; | |
145 | ||
146 | /* If this didn't work, it's probably for some really hairy reason, so | |
147 | * provide a bunch of debugging information. | |
148 | */ | |
149 | disorder_error(0, "failed to link GStreamer elements `%s' and `%s'", | |
150 | GST_OBJECT_NAME(left), GST_OBJECT_NAME(right)); | |
151 | report_element_pads("source", left, gst_element_iterate_src_pads(left)); | |
f931733b | 152 | report_element_pads("dest", right, gst_element_iterate_sink_pads(right)); |
7207a21b MW |
153 | disorder_fatal(0, "can't decode `%s'", file); |
154 | } | |
155 | ||
156 | /* The `decoderbin' element (DECODE) has deigned to announce a new PAD. | |
157 | * Maybe we should attach the tag end of our pipeline (starting with the | |
158 | * element U) to it. | |
159 | */ | |
160 | static void decoder_pad_arrived(GstElement *decode, GstPad *pad, gpointer u) | |
161 | { | |
162 | GstElement *tail = u; | |
c076146f | 163 | #ifdef HAVE_GSTREAMER_0_10 |
7207a21b | 164 | GstCaps *caps = gst_pad_get_caps(pad); |
c076146f MW |
165 | #else |
166 | GstCaps *caps = gst_pad_get_current_caps(pad); | |
167 | #endif | |
7207a21b MW |
168 | GstStructure *s; |
169 | guint i, n; | |
170 | const gchar *name; | |
171 | ||
172 | /* The input file could be more or less anything, so this could be any kind | |
173 | * of pad. We're only interested if it's audio, so let's go check. | |
174 | */ | |
175 | for(i = 0, n = gst_caps_get_size(caps); i < n; i++) { | |
176 | s = gst_caps_get_structure(caps, i); | |
177 | name = gst_structure_get_name(s); | |
c076146f MW |
178 | #ifdef HAVE_GSTREAMER_0_10 |
179 | if(strncmp(name, "audio/x-raw-", 12) == 0) | |
180 | #else | |
181 | if(strcmp(name, "audio/x-raw") == 0) | |
182 | #endif | |
183 | goto match; | |
7207a21b | 184 | } |
3d9c9d54 | 185 | goto end; |
7207a21b MW |
186 | |
187 | match: | |
188 | /* Yes, it's audio. Link the two elements together. */ | |
189 | link_elements(decode, tail); | |
190 | ||
191 | /* If requested using the environemnt variable `GST_DEBUG_DUMP_DOT_DIR', | |
192 | * write a dump of the now-completed pipeline. | |
193 | */ | |
194 | GST_DEBUG_BIN_TO_DOT_FILE(GST_BIN(pipeline), | |
195 | GST_DEBUG_GRAPH_SHOW_ALL, | |
196 | "disorder-gstdecode"); | |
3d9c9d54 MW |
197 | |
198 | end: | |
199 | gst_caps_unref(caps); | |
7207a21b MW |
200 | } |
201 | ||
202 | /* Prepare the GStreamer pipeline, ready to decode the given FILE. This sets | |
203 | * up the variables `appsink' and `pipeline'. | |
204 | */ | |
205 | static void prepare_pipeline(void) | |
206 | { | |
207 | GstElement *source = gst_element_factory_make("filesrc", "file"); | |
208 | GstElement *decode = gst_element_factory_make("decodebin", "decode"); | |
c915f0d4 MW |
209 | GstElement *resample = gst_element_factory_make("audioresample", |
210 | "resample"); | |
7207a21b MW |
211 | GstElement *convert = gst_element_factory_make("audioconvert", "convert"); |
212 | GstElement *sink = gst_element_factory_make("appsink", "sink"); | |
213 | GstElement *tail = sink; | |
214 | GstElement *gain; | |
c915f0d4 MW |
215 | GstCaps *caps; |
216 | const struct stream_header *fmt = &config->sample_format; | |
7207a21b | 217 | |
c54fec77 MW |
218 | if(!source || !decode || !resample || !convert || !sink) |
219 | disorder_fatal(0, "failed to create GStreamer elements: " | |
220 | "need base and good plugins"); | |
221 | ||
c076146f MW |
222 | #ifndef HAVE_GSTREAMER_0_10 |
223 | static const struct fmttab { | |
224 | const char *fmt; | |
225 | unsigned bits; | |
226 | unsigned endian; | |
227 | } fmttab[] = { | |
228 | { "S8", 8, ENDIAN_BIG }, | |
229 | { "S8", 8, ENDIAN_LITTLE }, | |
230 | { "S16BE", 16, ENDIAN_BIG }, | |
231 | { "S16LE", 16, ENDIAN_LITTLE }, | |
232 | { 0 } | |
233 | }; | |
234 | const struct fmttab *ft; | |
235 | #endif | |
236 | ||
7207a21b MW |
237 | /* Set up the global variables. */ |
238 | pipeline = gst_pipeline_new("pipe"); | |
239 | appsink = GST_APP_SINK(sink); | |
240 | ||
241 | /* Configure the various simple elements. */ | |
242 | g_object_set(source, "location", file, END); | |
243 | g_object_set(sink, "sync", FALSE, END); | |
244 | ||
c915f0d4 MW |
245 | /* Configure the resampler and converter. Leave things as their defaults |
246 | * if the user hasn't made an explicit request. | |
f5ebedb0 | 247 | */ |
c915f0d4 | 248 | if(quality >= 0) g_object_set(resample, "quality", quality, END); |
f5ebedb0 MW |
249 | if(dither >= 0) g_object_set(convert, "dithering", dither, END); |
250 | if(shape >= 0) g_object_set(convert, "noise-shaping", shape, END); | |
251 | ||
c915f0d4 | 252 | /* Set up the sink's capabilities from the configuration. */ |
c076146f | 253 | #ifdef HAVE_GSTREAMER_0_10 |
c915f0d4 MW |
254 | caps = gst_caps_new_simple("audio/x-raw-int", |
255 | "width", G_TYPE_INT, fmt->bits, | |
256 | "depth", G_TYPE_INT, fmt->bits, | |
257 | "channels", G_TYPE_INT, fmt->channels, | |
258 | "signed", G_TYPE_BOOLEAN, TRUE, | |
259 | "rate", G_TYPE_INT, fmt->rate, | |
260 | "endianness", G_TYPE_INT, | |
261 | fmt->endian == ENDIAN_BIG ? | |
262 | G_BIG_ENDIAN : G_LITTLE_ENDIAN, | |
263 | END); | |
c076146f MW |
264 | #else |
265 | for (ft = fmttab; ft->fmt; ft++) | |
266 | if (ft->bits == fmt->bits && ft->endian == fmt->endian) break; | |
267 | if(!ft->fmt) { | |
268 | disorder_fatal(0, "unsupported sample format: bits=%"PRIu32", endian=%u", | |
269 | fmt->bits, fmt->endian); | |
270 | } | |
271 | caps = gst_caps_new_simple("audio/x-raw", | |
272 | "format", G_TYPE_STRING, ft->fmt, | |
273 | "channels", G_TYPE_INT, fmt->channels, | |
274 | "rate", G_TYPE_INT, fmt->rate, | |
275 | END); | |
276 | #endif | |
7207a21b | 277 | gst_app_sink_set_caps(appsink, caps); |
3d9c9d54 | 278 | gst_caps_unref(caps); |
7207a21b MW |
279 | |
280 | /* Add the various elements into the pipeline. We'll stitch them together | |
281 | * in pieces, because the pipeline is somewhat dynamic. | |
282 | */ | |
c915f0d4 MW |
283 | gst_bin_add_many(GST_BIN(pipeline), |
284 | source, decode, | |
285 | resample, convert, sink, END); | |
7207a21b | 286 | |
c915f0d4 | 287 | /* Link audio conversion stages onto the front. The rest of DisOrder |
7207a21b MW |
288 | * doesn't handle much of the full panoply of exciting audio formats. |
289 | */ | |
290 | link_elements(convert, tail); tail = convert; | |
c915f0d4 | 291 | link_elements(resample, tail); tail = resample; |
7207a21b MW |
292 | |
293 | /* If we're meant to do ReplayGain then insert it into the pipeline before | |
294 | * the converter. | |
295 | */ | |
296 | if(mode != OFF) { | |
297 | gain = gst_element_factory_make("rgvolume", "gain"); | |
c54fec77 MW |
298 | if(!gain) |
299 | disorder_fatal(0, "failed to create GStreamer elements: " | |
300 | "need base and good plugins"); | |
f5ebedb0 MW |
301 | g_object_set(gain, |
302 | "album-mode", mode == ALBUM, | |
303 | "fallback-gain", fallback, | |
304 | END); | |
7207a21b MW |
305 | gst_bin_add(GST_BIN(pipeline), gain); |
306 | link_elements(gain, tail); tail = gain; | |
307 | } | |
308 | ||
309 | /* Link the source and the decoder together. The `decodebin' is annoying | |
310 | * and doesn't have any source pads yet, so the best we can do is make two | |
311 | * halves of the chain, and add a hook to stitch them together later. | |
312 | */ | |
313 | link_elements(source, decode); | |
314 | g_signal_connect(decode, "pad-added", | |
315 | G_CALLBACK(decoder_pad_arrived), tail); | |
316 | } | |
317 | ||
318 | /* Respond to a message from the BUS. The only thing we need worry about | |
319 | * here is errors from the pipeline. | |
320 | */ | |
321 | static void bus_message(GstBus UNUSED *bus, GstMessage *msg, | |
322 | gpointer UNUSED u) | |
323 | { | |
0b47d516 | 324 | switch(GST_MESSAGE_TYPE(msg)) { |
7207a21b | 325 | case GST_MESSAGE_ERROR: |
c076146f MW |
326 | disorder_fatal(0, "%s", |
327 | gst_structure_get_string(gst_message_get_structure(msg), | |
328 | "debug")); | |
7207a21b MW |
329 | default: |
330 | break; | |
331 | } | |
332 | } | |
333 | ||
334 | /* End of stream. Stop polling the main loop. */ | |
335 | static void cb_eos(GstAppSink UNUSED *sink, gpointer UNUSED u) | |
336 | { g_main_loop_quit(loop); } | |
337 | ||
338 | /* Preroll buffers are prepared when the pipeline moves to the `paused' | |
339 | * state, so that they're ready for immediate playback. Conveniently, they | |
340 | * also carry format information, which is what we want here. Stash the | |
341 | * sample format information in the `stream_header' structure ready for | |
342 | * actual buffers of interesting data. | |
343 | */ | |
344 | static GstFlowReturn cb_preroll(GstAppSink *sink, gpointer UNUSED u) | |
345 | { | |
c076146f | 346 | #ifdef HAVE_GSTREAMER_0_10 |
7207a21b MW |
347 | GstBuffer *buf = gst_app_sink_pull_preroll(sink); |
348 | GstCaps *caps = GST_BUFFER_CAPS(buf); | |
c076146f MW |
349 | #else |
350 | GstSample *samp = gst_app_sink_pull_preroll(sink); | |
351 | GstCaps *caps = gst_sample_get_caps(samp); | |
352 | #endif | |
7207a21b MW |
353 | |
354 | #ifdef HAVE_GST_AUDIO_INFO_FROM_CAPS | |
355 | ||
356 | /* Parse the audio format information out of the caps. There's a handy | |
357 | * function to do this in later versions of gst-plugins-base, so use that | |
358 | * if it's available. Once we no longer care about supporting such old | |
359 | * versions we can delete the version which does the job the hard way. | |
360 | */ | |
361 | ||
362 | GstAudioInfo ai; | |
363 | ||
364 | if(!gst_audio_info_from_caps(&ai, caps)) | |
365 | disorder_fatal(0, "can't decode `%s': failed to parse audio info", file); | |
366 | hdr.rate = ai.rate; | |
367 | hdr.channels = ai.channels; | |
368 | hdr.bits = ai.finfo->width; | |
369 | hdr.endian = ai.finfo->endianness == G_BIG_ENDIAN ? | |
370 | ENDIAN_BIG : ENDIAN_LITTLE; | |
371 | ||
372 | #else | |
373 | ||
374 | GstStructure *s; | |
375 | const char *ty; | |
376 | gint rate, channels, bits, endian; | |
377 | gboolean signedp; | |
378 | ||
379 | /* Make sure that the caps is basically the right shape. */ | |
380 | if(!GST_CAPS_IS_SIMPLE(caps)) disorder_fatal(0, "expected simple caps"); | |
381 | s = gst_caps_get_structure(caps, 0); | |
382 | ty = gst_structure_get_name(s); | |
383 | if(strcmp(ty, "audio/x-raw-int") != 0) | |
384 | disorder_fatal(0, "unexpected content type `%s'", ty); | |
385 | ||
386 | /* Extract fields from the structure. */ | |
387 | if(!gst_structure_get(s, | |
388 | "rate", G_TYPE_INT, &rate, | |
389 | "channels", G_TYPE_INT, &channels, | |
390 | "width", G_TYPE_INT, &bits, | |
391 | "endianness", G_TYPE_INT, &endian, | |
392 | "signed", G_TYPE_BOOLEAN, &signedp, | |
393 | END)) | |
394 | disorder_fatal(0, "can't decode `%s': failed to parse audio caps", file); | |
395 | hdr.rate = rate; hdr.channels = channels; hdr.bits = bits; | |
396 | hdr.endian = endian == G_BIG_ENDIAN ? ENDIAN_BIG : ENDIAN_LITTLE; | |
397 | ||
398 | #endif | |
399 | ||
c076146f | 400 | #ifdef HAVE_GSTREAMER_0_10 |
7207a21b | 401 | gst_buffer_unref(buf); |
c076146f MW |
402 | #else |
403 | gst_sample_unref(samp); | |
404 | #endif | |
7207a21b MW |
405 | return GST_FLOW_OK; |
406 | } | |
407 | ||
408 | /* A new buffer of sample data has arrived, so we should pass it on with | |
409 | * appropriate framing. | |
410 | */ | |
411 | static GstFlowReturn cb_buffer(GstAppSink *sink, gpointer UNUSED u) | |
412 | { | |
c076146f | 413 | #ifdef HAVE_GSTREAMER_0_10 |
7207a21b | 414 | GstBuffer *buf = gst_app_sink_pull_buffer(sink); |
c076146f MW |
415 | #else |
416 | GstSample *samp = gst_app_sink_pull_sample(sink); | |
417 | GstBuffer *buf = gst_sample_get_buffer(samp); | |
418 | GstMemory *mem; | |
419 | GstMapInfo map; | |
420 | gint i, n; | |
421 | #endif | |
7207a21b MW |
422 | |
423 | /* Make sure we actually have a grip on the sample format here. */ | |
424 | if(!hdr.rate) disorder_fatal(0, "format unset"); | |
425 | ||
426 | /* Write out a frame of audio data. */ | |
c076146f | 427 | #ifdef HAVE_GSTREAMER_0_10 |
7207a21b | 428 | hdr.nbytes = GST_BUFFER_SIZE(buf); |
ff56519f | 429 | if((!(flags&f_stream) && fwrite(&hdr, sizeof(hdr), 1, fp) != 1) || |
7207a21b MW |
430 | fwrite(GST_BUFFER_DATA(buf), 1, hdr.nbytes, fp) != hdr.nbytes) |
431 | disorder_fatal(errno, "output"); | |
c076146f MW |
432 | #else |
433 | for(i = 0, n = gst_buffer_n_memory(buf); i < n; i++) { | |
434 | mem = gst_buffer_peek_memory(buf, i); | |
435 | if(!gst_memory_map(mem, &map, GST_MAP_READ)) | |
436 | disorder_fatal(0, "failed to map sample buffer"); | |
437 | hdr.nbytes = map.size; | |
438 | if((!(flags&f_stream) && fwrite(&hdr, sizeof(hdr), 1, fp) != 1) || | |
439 | fwrite(map.data, 1, map.size, fp) != map.size) | |
440 | disorder_fatal(errno, "output"); | |
441 | gst_memory_unmap(mem, &map); | |
442 | } | |
443 | #endif | |
7207a21b MW |
444 | |
445 | /* And we're done. */ | |
c076146f | 446 | #ifdef HAVE_GSTREAMER_0_10 |
7207a21b | 447 | gst_buffer_unref(buf); |
c076146f MW |
448 | #else |
449 | gst_sample_unref(samp); | |
450 | #endif | |
7207a21b MW |
451 | return GST_FLOW_OK; |
452 | } | |
453 | ||
454 | static GstAppSinkCallbacks callbacks = { | |
455 | .eos = cb_eos, | |
456 | .new_preroll = cb_preroll, | |
c076146f | 457 | #ifdef HAVE_GSTREAMER_0_10 |
7207a21b | 458 | .new_buffer = cb_buffer |
c076146f MW |
459 | #else |
460 | .new_sample = cb_buffer | |
461 | #endif | |
7207a21b MW |
462 | }; |
463 | ||
464 | /* Decode the audio file. We're already set up for everything. */ | |
465 | static void decode(void) | |
466 | { | |
467 | GstBus *bus = gst_pipeline_get_bus(GST_PIPELINE(pipeline)); | |
468 | ||
469 | /* Set up the message bus and main loop. */ | |
470 | gst_bus_add_signal_watch(bus); | |
471 | loop = g_main_loop_new(0, FALSE); | |
472 | g_signal_connect(bus, "message", G_CALLBACK(bus_message), 0); | |
473 | ||
474 | /* Tell the sink to call us when interesting things happen. */ | |
01eab3ca MW |
475 | gst_app_sink_set_max_buffers(appsink, 16); |
476 | gst_app_sink_set_drop(appsink, FALSE); | |
7207a21b MW |
477 | gst_app_sink_set_callbacks(appsink, &callbacks, 0, 0); |
478 | ||
479 | /* Set the ball rolling. */ | |
be398aad | 480 | gst_element_set_state(pipeline, GST_STATE_PLAYING); |
7207a21b MW |
481 | |
482 | /* And wait for the miracle to come. */ | |
483 | g_main_loop_run(loop); | |
484 | ||
485 | /* Shut down the pipeline. This isn't strictly necessary, since we're | |
486 | * about to exit very soon, but it's kind of polite. | |
487 | */ | |
be398aad | 488 | gst_element_set_state(pipeline, GST_STATE_NULL); |
7207a21b MW |
489 | } |
490 | ||
491 | static int getenum(const char *what, const char *s, const char *const *tags) | |
492 | { | |
493 | int i; | |
494 | ||
495 | for(i = 0; tags[i]; i++) | |
496 | if(strcmp(s, tags[i]) == 0) return i; | |
497 | disorder_fatal(0, "unknown %s `%s'", what, s); | |
498 | } | |
499 | ||
f5ebedb0 MW |
500 | static double getfloat(const char *what, const char *s) |
501 | { | |
502 | double d; | |
503 | char *q; | |
504 | ||
505 | errno = 0; | |
506 | d = strtod(s, &q); | |
507 | if(*q || errno) disorder_fatal(0, "invalid %s `%s'", what, s); | |
508 | return d; | |
509 | } | |
510 | ||
c915f0d4 MW |
511 | static int getint(const char *what, const char *s, int min, int max) |
512 | { | |
513 | long i; | |
514 | char *q; | |
515 | ||
516 | errno = 0; | |
517 | i = strtol(s, &q, 10); | |
518 | if(*q || errno || min > i || i > max) | |
519 | disorder_fatal(0, "invalid %s `%s'", what, s); | |
520 | return (int)i; | |
521 | } | |
522 | ||
7207a21b MW |
523 | static const struct option options[] = { |
524 | { "help", no_argument, 0, 'h' }, | |
525 | { "version", no_argument, 0, 'V' }, | |
c915f0d4 | 526 | { "config", required_argument, 0, 'c' }, |
f5ebedb0 MW |
527 | { "dither", required_argument, 0, 'd' }, |
528 | { "fallback-gain", required_argument, 0, 'f' }, | |
529 | { "noise-shape", required_argument, 0, 'n' }, | |
c915f0d4 | 530 | { "quality", required_argument, 0, 'q' }, |
7207a21b | 531 | { "replay-gain", required_argument, 0, 'r' }, |
ff56519f | 532 | { "stream", no_argument, 0, 's' }, |
7207a21b MW |
533 | { 0, 0, 0, 0 } |
534 | }; | |
535 | ||
536 | static void help(void) | |
537 | { | |
538 | xprintf("Usage:\n" | |
539 | " disorder-gstdecode [OPTIONS] PATH\n" | |
540 | "Options:\n" | |
541 | " --help, -h Display usage message\n" | |
542 | " --version, -V Display version number\n" | |
c915f0d4 | 543 | " --config PATH, -c PATH Set configuration file\n" |
f5ebedb0 MW |
544 | " --dither TYPE, -d TYPE TYPE is `none', `rpdf', `tpdf', or " |
545 | "`tpdf-hf'\n" | |
546 | " --fallback-gain DB, -f DB For tracks without ReplayGain data\n" | |
547 | " --noise-shape TYPE, -n TYPE TYPE is `none', `error-feedback',\n" | |
548 | " `simple', `medium' or `high'\n" | |
c915f0d4 | 549 | " --quality QUAL, -q QUAL Resampling quality: 0 poor, 10 good\n" |
7207a21b | 550 | " --replay-gain MODE, -r MODE MODE is `off', `track' or `album'\n" |
ff56519f | 551 | " --stream, -s Output raw samples, without framing\n" |
7207a21b MW |
552 | "\n" |
553 | "Alternative audio decoder for DisOrder. Only intended to be\n" | |
554 | "used by speaker process, not for normal users.\n"); | |
555 | xfclose(stdout); | |
556 | exit(0); | |
557 | } | |
558 | ||
559 | /* Main program. */ | |
560 | int main(int argc, char *argv[]) | |
561 | { | |
562 | int n; | |
563 | const char *e; | |
564 | ||
565 | /* Initial setup. */ | |
566 | set_progname(argv); | |
567 | if(!setlocale(LC_CTYPE, "")) disorder_fatal(errno, "calling setlocale"); | |
568 | ||
569 | /* Parse command line. */ | |
ff56519f | 570 | while((n = getopt_long(argc, argv, "hVc:d:f:n:q:r:s", options, 0)) >= 0) { |
7207a21b MW |
571 | switch(n) { |
572 | case 'h': help(); | |
573 | case 'V': version("disorder-gstdecode"); | |
c915f0d4 | 574 | case 'c': configfile = optarg; break; |
f5ebedb0 MW |
575 | case 'd': dither = getenum("dither type", optarg, dithers); break; |
576 | case 'f': fallback = getfloat("fallback gain", optarg); break; | |
577 | case 'n': shape = getenum("noise-shaping type", optarg, shapes); break; | |
c915f0d4 | 578 | case 'q': quality = getint("resample quality", optarg, 0, 10); break; |
7207a21b | 579 | case 'r': mode = getenum("ReplayGain mode", optarg, modes); break; |
ff56519f | 580 | case 's': flags |= f_stream; break; |
7207a21b MW |
581 | default: disorder_fatal(0, "invalid option"); |
582 | } | |
583 | } | |
584 | if(optind >= argc) disorder_fatal(0, "missing filename"); | |
585 | file = argv[optind++]; | |
586 | if(optind < argc) disorder_fatal(0, "excess arguments"); | |
c915f0d4 | 587 | if(config_read(1, 0)) disorder_fatal(0, "cannot read configuration"); |
7207a21b MW |
588 | |
589 | /* Set up the GStreamer machinery. */ | |
590 | gst_init(0, 0); | |
591 | prepare_pipeline(); | |
592 | ||
593 | /* Set up the output file. */ | |
594 | if((e = getenv("DISORDER_RAW_FD")) != 0) { | |
595 | if((fp = fdopen(atoi(e), "wb")) == 0) disorder_fatal(errno, "fdopen"); | |
596 | } else | |
597 | fp = stdout; | |
598 | ||
599 | /* Let's go. */ | |
600 | decode(); | |
601 | ||
602 | /* And now we're done. */ | |
603 | xfclose(fp); | |
604 | return (0); | |
605 | } | |
606 | ||
607 | /* | |
608 | Local Variables: | |
609 | c-basic-offset:2 | |
610 | comment-column:40 | |
611 | fill-column:77 | |
612 | indent-tabs-mode:nil | |
613 | End: | |
614 | */ |