1 /* GStreamer
2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
18 */
20 #ifdef HAVE_CONFIG_H
21 #include "config.h"
22 #endif
23 #include "string.h"
24 #include "gstlame.h"
26 #ifdef lame_set_preset
27 #define GST_LAME_PRESET
28 #endif
30 GST_DEBUG_CATEGORY_STATIC (debug);
31 #define GST_CAT_DEFAULT debug
33 /* elementfactory information */
34 static GstElementDetails gst_lame_details = {
35 "L.A.M.E. mp3 encoder",
36 "Codec/Encoder/Audio",
37 "High-quality free MP3 encoder",
38 "Erik Walthinsen <omega@cse.ogi.edu>",
39 };
41 /* LAME can do MPEG-1, MPEG-2, and MPEG-2.5, so it has 9 possible
42 * sample rates it supports */
43 static GstStaticPadTemplate gst_lame_sink_template =
44 GST_STATIC_PAD_TEMPLATE ("sink",
45 GST_PAD_SINK,
46 GST_PAD_ALWAYS,
47 GST_STATIC_CAPS ("audio/x-raw-int, "
48 "endianness = (int) " G_STRINGIFY (G_BYTE_ORDER) ", "
49 "signed = (boolean) true, "
50 "width = (int) 16, "
51 "depth = (int) 16, "
52 "rate = (int) { 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000 }, "
53 "channels = (int) [ 1, 2 ]")
54 );
56 static GstStaticPadTemplate gst_lame_src_template =
57 GST_STATIC_PAD_TEMPLATE ("src",
58 GST_PAD_SRC,
59 GST_PAD_ALWAYS,
60 GST_STATIC_CAPS ("audio/mpeg, "
61 "mpegversion = (int) 1, "
62 "layer = (int) 3, "
63 "rate = (int) { 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000 }, "
64 "channels = (int) [ 1, 2 ]")
65 );
67 /********** Define useful types for non-programmatic interfaces **********/
68 #define GST_TYPE_LAME_MODE (gst_lame_mode_get_type())
69 static GType
70 gst_lame_mode_get_type (void)
71 {
72 static GType lame_mode_type = 0;
73 static GEnumValue lame_modes[] = {
74 {0, "0", "Stereo"},
75 {1, "1", "Joint-Stereo"},
76 {2, "2", "Dual channel"},
77 {3, "3", "Mono"},
78 {4, "4", "Auto"},
79 {0, NULL, NULL}
80 };
82 if (!lame_mode_type) {
83 lame_mode_type = g_enum_register_static ("GstLameMode", lame_modes);
84 }
85 return lame_mode_type;
86 }
88 #define GST_TYPE_LAME_QUALITY (gst_lame_quality_get_type())
89 static GType
90 gst_lame_quality_get_type (void)
91 {
92 static GType lame_quality_type = 0;
93 static GEnumValue lame_quality[] = {
94 {0, "0", "0 - Best"},
95 {1, "1", "1"},
96 {2, "2", "2"},
97 {3, "3", "3"},
98 {4, "4", "4"},
99 {5, "5", "5 - Default"},
100 {6, "6", "6"},
101 {7, "7", "7"},
102 {8, "8", "8"},
103 {9, "9", "9 - Worst"},
104 {0, NULL, NULL}
105 };
107 if (!lame_quality_type) {
108 lame_quality_type = g_enum_register_static ("GstLameQuality", lame_quality);
109 }
110 return lame_quality_type;
111 }
113 #define GST_TYPE_LAME_PADDING (gst_lame_padding_get_type())
114 static GType
115 gst_lame_padding_get_type (void)
116 {
117 static GType lame_padding_type = 0;
118 static GEnumValue lame_padding[] = {
119 {0, "0", "No Padding"},
120 {1, "1", "Always Pad"},
121 {2, "2", "Adjust Padding"},
122 {0, NULL, NULL}
123 };
125 if (!lame_padding_type) {
126 lame_padding_type = g_enum_register_static ("GstLamePadding", lame_padding);
127 }
128 return lame_padding_type;
129 }
131 #define GST_TYPE_LAME_VBRMODE (gst_lame_vbrmode_get_type())
132 static GType
133 gst_lame_vbrmode_get_type (void)
134 {
135 static GType lame_vbrmode_type = 0;
136 static GEnumValue lame_vbrmode[] = {
137 {vbr_off, "cbr", "No VBR (Constant Bitrate)"},
138 {vbr_rh, "old", "Lame's old VBR algorithm"},
139 {vbr_abr, "abr", "VBR Average Bitrate"},
140 {vbr_mtrh, "new", "Lame's new VBR algorithm"},
141 {0, NULL, NULL}
142 };
144 if (!lame_vbrmode_type) {
145 lame_vbrmode_type = g_enum_register_static ("GstLameVbrmode", lame_vbrmode);
146 }
148 return lame_vbrmode_type;
149 }
151 #ifdef GSTLAME_PRESET
152 #define GST_TYPE_LAME_PRESET (gst_lame_preset_get_type())
153 static GType
154 gst_lame_preset_get_type (void)
155 {
156 static GType gst_lame_preset = 0;
157 static GEnumValue gst_lame_presets[] = {
158 {0, "none", "None"},
159 {MEDIUM, "medium", "Medium"},
160 {STANDARD, "standard", "Standard"},
161 {EXTREME, "extreme", "Extreme"},
162 {INSANE, "insane", "Insane"},
163 {0, NULL, NULL}
164 };
166 if (!gst_lame_preset) {
167 gst_lame_preset =
168 g_enum_register_static ("GstLamePreset", gst_lame_presets);
169 }
171 return gst_lame_preset;
172 }
173 #endif
175 /********** Standard stuff for signals and arguments **********/
176 /* GstLame signals and args */
177 enum
178 {
179 /* FILL_ME */
180 LAST_SIGNAL
181 };
183 enum
184 {
185 ARG_0,
186 ARG_BITRATE,
187 ARG_COMPRESSION_RATIO,
188 ARG_QUALITY,
189 ARG_MODE,
190 ARG_FORCE_MS,
191 ARG_FREE_FORMAT,
192 ARG_COPYRIGHT,
193 ARG_ORIGINAL,
194 ARG_ERROR_PROTECTION,
195 ARG_PADDING_TYPE,
196 ARG_EXTENSION,
197 ARG_STRICT_ISO,
198 ARG_DISABLE_RESERVOIR,
199 ARG_VBR,
200 ARG_VBR_MEAN_BITRATE,
201 ARG_VBR_MIN_BITRATE,
202 ARG_VBR_MAX_BITRATE,
203 ARG_VBR_HARD_MIN,
204 ARG_LOWPASS_FREQ,
205 ARG_LOWPASS_WIDTH,
206 ARG_HIGHPASS_FREQ,
207 ARG_HIGHPASS_WIDTH,
208 ARG_ATH_ONLY,
209 ARG_ATH_SHORT,
210 ARG_NO_ATH,
211 ARG_ATH_LOWER,
212 ARG_CWLIMIT,
213 ARG_ALLOW_DIFF_SHORT,
214 ARG_NO_SHORT_BLOCKS,
215 ARG_EMPHASIS,
216 ARG_VBR_QUALITY,
217 #ifdef GSTLAME_PRESET
218 ARG_XINGHEADER,
219 ARG_PRESET
220 #else
221 ARG_XINGHEADER
222 #endif
223 };
225 static void gst_lame_base_init (gpointer g_class);
226 static void gst_lame_class_init (GstLameClass * klass);
227 static void gst_lame_init (GstLame * gst_lame);
229 static void gst_lame_set_property (GObject * object, guint prop_id,
230 const GValue * value, GParamSpec * pspec);
231 static void gst_lame_get_property (GObject * object, guint prop_id,
232 GValue * value, GParamSpec * pspec);
233 static void gst_lame_chain (GstPad * pad, GstData * _data);
234 static gboolean gst_lame_setup (GstLame * lame);
235 static GstElementStateReturn gst_lame_change_state (GstElement * element);
237 static GstElementClass *parent_class = NULL;
239 /* static guint gst_lame_signals[LAST_SIGNAL] = { 0 }; */
241 GType
242 gst_lame_get_type (void)
243 {
244 static GType gst_lame_type = 0;
246 if (!gst_lame_type) {
247 static const GTypeInfo gst_lame_info = {
248 sizeof (GstLameClass),
249 gst_lame_base_init,
250 NULL,
251 (GClassInitFunc) gst_lame_class_init,
252 NULL,
253 NULL,
254 sizeof (GstLame),
255 0,
256 (GInstanceInitFunc) gst_lame_init,
257 };
259 static const GInterfaceInfo tag_setter_info = {
260 NULL,
261 NULL,
262 NULL
263 };
265 gst_lame_type =
266 g_type_register_static (GST_TYPE_ELEMENT, "GstLame", &gst_lame_info, 0);
267 g_type_add_interface_static (gst_lame_type, GST_TYPE_TAG_SETTER,
268 &tag_setter_info);
270 }
271 return gst_lame_type;
272 }
274 static void
275 gst_lame_base_init (gpointer g_class)
276 {
277 GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
279 gst_element_class_add_pad_template (element_class,
280 gst_static_pad_template_get (&gst_lame_src_template));
281 gst_element_class_add_pad_template (element_class,
282 gst_static_pad_template_get (&gst_lame_sink_template));
283 gst_element_class_set_details (element_class, &gst_lame_details);
284 }
286 static void
287 gst_lame_class_init (GstLameClass * klass)
288 {
289 GObjectClass *gobject_class;
290 GstElementClass *gstelement_class;
292 gobject_class = (GObjectClass *) klass;
293 gstelement_class = (GstElementClass *) klass;
295 parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
297 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BITRATE,
298 g_param_spec_int ("bitrate", "Bitrate (kb/s)", "Bitrate in kbit/sec",
299 8, 320, 128, G_PARAM_READWRITE));
300 /* compression ratio set to 0.0 by default otherwise it overrides the bitrate setting */
301 g_object_class_install_property (G_OBJECT_CLASS (klass),
302 ARG_COMPRESSION_RATIO, g_param_spec_float ("compression_ratio",
303 "Compression Ratio",
304 "let lame choose bitrate to achieve selected compression ratio", 0.0,
305 200.0, 0.0, G_PARAM_READWRITE));
306 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_QUALITY,
307 g_param_spec_enum ("quality", "Quality",
308 "Quality of algorithm used for encoding", GST_TYPE_LAME_QUALITY, 5,
309 G_PARAM_READWRITE));
310 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MODE,
311 g_param_spec_enum ("mode", "Mode", "Encoding mode", GST_TYPE_LAME_MODE, 0,
312 G_PARAM_READWRITE));
313 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FORCE_MS,
314 g_param_spec_boolean ("force_ms", "Force ms",
315 "Force ms_stereo on all frames", TRUE, G_PARAM_READWRITE));
316 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FREE_FORMAT,
317 g_param_spec_boolean ("free_format", "Free format",
318 "Produce a free format bitstream", TRUE, G_PARAM_READWRITE));
319 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_COPYRIGHT,
320 g_param_spec_boolean ("copyright", "Copyright", "Mark as copyright", TRUE,
321 G_PARAM_READWRITE));
322 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ORIGINAL,
323 g_param_spec_boolean ("original", "Original", "Mark as non-original",
324 TRUE, G_PARAM_READWRITE));
325 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ERROR_PROTECTION,
326 g_param_spec_boolean ("error_protection", "Error protection",
327 "Adds 16 bit checksum to every frame", TRUE, G_PARAM_READWRITE));
328 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_PADDING_TYPE,
329 g_param_spec_enum ("padding_type", "Padding type", "Padding type",
330 GST_TYPE_LAME_PADDING, 0, G_PARAM_READWRITE));
331 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_EXTENSION,
332 g_param_spec_boolean ("extension", "Extension", "Extension", TRUE,
333 G_PARAM_READWRITE));
334 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_STRICT_ISO,
335 g_param_spec_boolean ("strict_iso", "Strict ISO",
336 "Comply as much as possible to ISO MPEG spec", TRUE,
337 G_PARAM_READWRITE));
338 g_object_class_install_property (G_OBJECT_CLASS (klass),
339 ARG_DISABLE_RESERVOIR, g_param_spec_boolean ("disable_reservoir",
340 "Disable reservoir", "Disable the bit reservoir", TRUE,
341 G_PARAM_READWRITE));
342 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_VBR,
343 g_param_spec_enum ("vbr", "VBR", "Specify bitrate mode",
344 GST_TYPE_LAME_VBRMODE, vbr_off, G_PARAM_READWRITE));
345 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_VBR_QUALITY,
346 g_param_spec_enum ("vbr_quality", "VBR Quality", "VBR Quality",
347 GST_TYPE_LAME_QUALITY, 5, G_PARAM_READWRITE));
348 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_VBR_MEAN_BITRATE,
349 g_param_spec_int ("vbr_mean_bitrate", "VBR mean bitrate",
350 "Specify mean bitrate", 0, G_MAXINT, 0, G_PARAM_READWRITE));
351 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_VBR_MIN_BITRATE,
352 g_param_spec_int ("vbr_min_bitrate", "VBR min bitrate",
353 "Specify min bitrate", 0, G_MAXINT, 0, G_PARAM_READWRITE));
354 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_VBR_MAX_BITRATE,
355 g_param_spec_int ("vbr_max_bitrate", "VBR max bitrate",
356 "Specify max bitrate", 0, G_MAXINT, 0, G_PARAM_READWRITE));
357 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_VBR_HARD_MIN,
358 g_param_spec_int ("vbr_hard_min", "VBR hard min",
359 "Specify hard min bitrate", 0, G_MAXINT, 0, G_PARAM_READWRITE));
360 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LOWPASS_FREQ,
361 g_param_spec_int ("lowpass_freq", "Lowpass freq",
362 "frequency(kHz), lowpass filter cutoff above freq", 0, 50000, 0,
363 G_PARAM_READWRITE));
364 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LOWPASS_WIDTH,
365 g_param_spec_int ("lowpass_width", "Lowpass width",
366 "frequency(kHz) - default 15% of lowpass freq", 0, G_MAXINT, 0,
367 G_PARAM_READWRITE));
368 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_HIGHPASS_FREQ,
369 g_param_spec_int ("highpass_freq", "Highpass freq",
370 "frequency(kHz), highpass filter cutoff below freq", 0, 50000, 0,
371 G_PARAM_READWRITE));
372 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_HIGHPASS_WIDTH,
373 g_param_spec_int ("highpass_width", "Highpass width",
374 "frequency(kHz) - default 15% of highpass freq", 0, G_MAXINT, 0,
375 G_PARAM_READWRITE));
376 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ATH_ONLY,
377 g_param_spec_boolean ("ath_only", "ATH only",
378 "Ignore GPSYCHO completely, use ATH only", TRUE, G_PARAM_READWRITE));
379 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ATH_SHORT,
380 g_param_spec_boolean ("ath_short", "ATH short",
381 "Ignore GPSYCHO for short blocks, use ATH only", TRUE,
382 G_PARAM_READWRITE));
383 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_NO_ATH,
384 g_param_spec_boolean ("no_ath", "No ath",
385 "turns ATH down to a flat noise floor", TRUE, G_PARAM_READWRITE));
386 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ATH_LOWER,
387 g_param_spec_int ("ath_lower", "ATH lower", "lowers ATH by x dB",
388 G_MININT, G_MAXINT, 0, G_PARAM_READWRITE));
389 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CWLIMIT,
390 g_param_spec_int ("cwlimit", "Cwlimit",
391 "Compute tonality up to freq (in kHz) default 8.8717", 0, 50000, 0,
392 G_PARAM_READWRITE));
393 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ALLOW_DIFF_SHORT,
394 g_param_spec_boolean ("allow_diff_short", "Allow diff short",
395 "Allow diff short", TRUE, G_PARAM_READWRITE));
396 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_NO_SHORT_BLOCKS,
397 g_param_spec_boolean ("no_short_blocks", "No short blocks",
398 "Do not use short blocks", TRUE, G_PARAM_READWRITE));
399 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_EMPHASIS,
400 g_param_spec_boolean ("emphasis", "Emphasis", "Emphasis", TRUE,
401 G_PARAM_READWRITE));
402 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_XINGHEADER,
403 g_param_spec_boolean ("xingheader", "Output Xing Header",
404 "Output Xing Header", FALSE, G_PARAM_READWRITE));
405 #ifdef GSTLAME_PRESET
406 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_PRESET,
407 g_param_spec_enum ("preset", "Lame Preset", "Lame Preset",
408 GST_TYPE_LAME_PRESET, 0, G_PARAM_READWRITE));
409 #endif
410 gobject_class->set_property = gst_lame_set_property;
411 gobject_class->get_property = gst_lame_get_property;
413 gstelement_class->change_state = gst_lame_change_state;
414 }
416 static GstCaps *
417 gst_lame_src_getcaps (GstPad * pad)
418 {
419 GstLame *lame;
420 GstCaps *caps;
422 lame = GST_LAME (gst_pad_get_parent (pad));
424 if (!gst_lame_setup (lame)) {
425 GST_DEBUG_OBJECT (lame, "problem doing lame setup");
426 return
427 gst_caps_copy (gst_pad_template_get_caps (gst_static_pad_template_get
428 (&gst_lame_src_template)));
429 }
431 caps = gst_caps_new_simple ("audio/mpeg",
432 "mpegversion", G_TYPE_INT, 1,
433 "layer", G_TYPE_INT, 3,
434 "rate", G_TYPE_INT, lame_get_out_samplerate (lame->lgf),
435 "channels", G_TYPE_INT, lame->num_channels, NULL);
437 return caps;
438 }
440 static GstPadLinkReturn
441 gst_lame_src_link (GstPad * pad, const GstCaps * caps)
442 {
443 GstLame *lame;
444 gint out_samplerate;
445 GstStructure *structure;
446 GstCaps *othercaps, *channelcaps;
447 GstPadLinkReturn result;
449 lame = GST_LAME (gst_pad_get_parent (pad));
450 structure = gst_caps_get_structure (caps, 0);
452 if (!gst_structure_get_int (structure, "rate", &out_samplerate) ||
453 !gst_structure_get_int (structure, "channels", &lame->num_channels))
454 g_return_val_if_reached (GST_PAD_LINK_REFUSED);
456 if (lame_set_out_samplerate (lame->lgf, out_samplerate) != 0)
457 return GST_PAD_LINK_REFUSED;
459 /* we don't do channel conversion */
460 channelcaps = gst_caps_new_simple ("audio/x-raw-int", "channels", G_TYPE_INT,
461 lame->num_channels, NULL);
462 othercaps = gst_caps_intersect (gst_pad_get_pad_template_caps (lame->sinkpad),
463 channelcaps);
464 gst_caps_free (channelcaps);
466 result = gst_pad_try_set_caps_nonfixed (lame->sinkpad, othercaps);
468 if (GST_PAD_LINK_FAILED (result))
469 return result;
471 caps = gst_pad_get_negotiated_caps (lame->sinkpad);
472 structure = gst_caps_get_structure (caps, 0);
473 if (!gst_structure_get_int (structure, "rate", &lame->samplerate))
474 g_return_val_if_reached (GST_PAD_LINK_REFUSED);
476 if (!gst_lame_setup (lame)) {
477 GST_ELEMENT_ERROR (lame, CORE, NEGOTIATION, (NULL),
478 ("could not initialize encoder (wrong parameters?)"));
479 return GST_PAD_LINK_REFUSED;
480 }
482 return result;
483 }
485 static GstPadLinkReturn
486 gst_lame_sink_link (GstPad * pad, const GstCaps * caps)
487 {
488 GstLame *lame;
489 gint out_samplerate;
490 GstStructure *structure;
491 GstCaps *othercaps;
493 lame = GST_LAME (gst_pad_get_parent (pad));
494 structure = gst_caps_get_structure (caps, 0);
496 if (!gst_structure_get_int (structure, "rate", &lame->samplerate) ||
497 !gst_structure_get_int (structure, "channels", &lame->num_channels))
498 g_return_val_if_reached (GST_PAD_LINK_REFUSED);
500 lame_set_out_samplerate (lame->lgf, 0);
501 if (!gst_lame_setup (lame)) {
502 GST_ELEMENT_ERROR (lame, CORE, NEGOTIATION, (NULL),
503 ("could not initialize encoder (wrong parameters?)"));
504 return GST_PAD_LINK_REFUSED;
505 }
507 out_samplerate = lame_get_out_samplerate (lame->lgf);
508 othercaps =
509 gst_caps_new_simple ("audio/mpeg",
510 "mpegversion", G_TYPE_INT, 1,
511 "layer", G_TYPE_INT, 3,
512 "channels", G_TYPE_INT, lame->num_channels,
513 "rate", G_TYPE_INT, out_samplerate, NULL);
515 return gst_pad_try_set_caps (lame->srcpad, othercaps);
516 }
518 static void
519 gst_lame_init (GstLame * lame)
520 {
521 GST_DEBUG_OBJECT (lame, "starting initialization");
523 lame->sinkpad =
524 gst_pad_new_from_template (gst_static_pad_template_get
525 (&gst_lame_sink_template), "sink");
526 gst_element_add_pad (GST_ELEMENT (lame), lame->sinkpad);
527 gst_pad_set_chain_function (lame->sinkpad, gst_lame_chain);
528 gst_pad_set_link_function (lame->sinkpad, gst_lame_sink_link);
530 lame->srcpad =
531 gst_pad_new_from_template (gst_static_pad_template_get
532 (&gst_lame_src_template), "src");
533 gst_element_add_pad (GST_ELEMENT (lame), lame->srcpad);
534 gst_pad_set_link_function (lame->srcpad, gst_lame_src_link);
535 gst_pad_set_getcaps_function (lame->srcpad, gst_lame_src_getcaps);
536 GST_FLAG_SET (lame, GST_ELEMENT_EVENT_AWARE);
538 GST_DEBUG ("setting up lame encoder");
539 lame->lgf = lame_init ();
541 lame->samplerate = 44100;
542 lame->num_channels = 2;
543 lame->initialized = FALSE;
545 lame->bitrate = 128; /* lame_get_brate (lame->lgf); => 0/out of range */
546 lame->compression_ratio = 0.0; /* lame_get_compression_ratio (lame->lgf); => 0/out of range ... NOTE: 0.0 makes bitrate take precedence */
547 lame->quality = 5; /* lame_get_quality (lame->lgf); => -1/out of range */
548 lame->mode = lame_get_mode (lame->lgf);
549 lame->force_ms = lame_get_force_ms (lame->lgf);
550 lame->free_format = lame_get_free_format (lame->lgf);
551 lame->copyright = lame_get_copyright (lame->lgf);
552 lame->original = lame_get_original (lame->lgf);
553 lame->error_protection = lame_get_error_protection (lame->lgf);
554 lame->padding_type = lame_get_padding_type (lame->lgf);
555 lame->extension = lame_get_extension (lame->lgf);
556 lame->strict_iso = lame_get_strict_ISO (lame->lgf);
557 lame->disable_reservoir = lame_get_disable_reservoir (lame->lgf);
558 lame->vbr = vbr_off; /* lame_get_VBR (lame->lgf); */
559 lame->vbr_quality = 5;
560 lame->vbr_mean_bitrate = lame_get_VBR_mean_bitrate_kbps (lame->lgf);
561 lame->vbr_min_bitrate = lame_get_VBR_min_bitrate_kbps (lame->lgf);
562 lame->vbr_max_bitrate = 320; /* lame_get_VBR_max_bitrate_kbps (lame->lgf); => 0/no vbr possible */
563 lame->vbr_hard_min = lame_get_VBR_hard_min (lame->lgf);
564 //lame->lowpass_freq = 50000; /* lame_get_lowpassfreq (lame->lgf); => 0/lowpass on everything ? */
565 lame->lowpass_freq = 0;
566 lame->lowpass_width = 0; /* lame_get_lowpasswidth (lame->lgf); => -1/out of range */
567 lame->highpass_freq = lame_get_highpassfreq (lame->lgf);
568 lame->highpass_width = 0; /* lame_get_highpasswidth (lame->lgf); => -1/out of range */
569 lame->ath_only = lame_get_ATHonly (lame->lgf);
570 lame->ath_short = lame_get_ATHshort (lame->lgf);
571 lame->no_ath = lame_get_noATH (lame->lgf);
572 /* lame->ath_type = lame_get_ATHtype (lame->lgf); */
573 lame->ath_lower = lame_get_ATHlower (lame->lgf);
574 lame->cwlimit = 8.8717; /* lame_get_cwlimit (lame->lgf); => 0 */
575 lame->allow_diff_short = lame_get_allow_diff_short (lame->lgf);
576 lame->no_short_blocks = TRUE; /* lame_get_no_short_blocks (lame->lgf); */
577 lame->emphasis = lame_get_emphasis (lame->lgf);
578 lame->xingheader = FALSE;
579 lame->preset = 0;
580 lame->tags = gst_tag_list_new ();
582 id3tag_init (lame->lgf);
584 lame->newmediacount = 0;
585 GST_DEBUG_OBJECT (lame, "done initializing");
586 }
588 typedef struct _GstLameTagMatch GstLameTagMatch;
589 typedef void (*GstLameTagFunc) (lame_global_flags * gfp, const char *value);
591 struct _GstLameTagMatch
592 {
593 gchar *gstreamer_tag;
594 GstLameTagFunc tag_func;
595 };
597 static GstLameTagMatch tag_matches[] = {
598 {GST_TAG_TITLE, id3tag_set_title},
599 {GST_TAG_DATE, id3tag_set_year},
600 {GST_TAG_TRACK_NUMBER, id3tag_set_track},
601 {GST_TAG_COMMENT, id3tag_set_comment},
602 {GST_TAG_ARTIST, id3tag_set_artist},
603 {GST_TAG_ALBUM, id3tag_set_album},
604 {GST_TAG_GENRE, (GstLameTagFunc) id3tag_set_genre},
605 {NULL, NULL}
606 };
608 static void
609 add_one_tag (const GstTagList * list, const gchar * tag, gpointer user_data)
610 {
611 GstLame *lame;
612 gchar *value;
613 int i = 0;
615 lame = GST_LAME (user_data);
616 g_return_if_fail (lame != NULL);
618 while (tag_matches[i].gstreamer_tag != NULL) {
619 if (strcmp (tag, tag_matches[i].gstreamer_tag) == 0) {
620 break;
621 }
622 i++;
623 }
625 if (tag_matches[i].tag_func == NULL) {
626 g_print ("Couldn't find matching gstreamer tag for %s\n", tag);
627 return;
628 }
630 switch (gst_tag_get_type (tag)) {
631 case G_TYPE_UINT:{
632 guint ivalue;
634 if (!gst_tag_list_get_uint (list, tag, &ivalue)) {
635 GST_DEBUG ("Error reading \"%s\" tag value\n", tag);
636 return;
637 }
638 value = g_strdup_printf ("%u", ivalue);
639 break;
640 }
641 case G_TYPE_STRING:
642 if (!gst_tag_list_get_string (list, tag, &value)) {
643 GST_DEBUG ("Error reading \"%s\" tag value\n", tag);
644 return;
645 };
646 break;
647 default:
648 GST_DEBUG ("Couldn't write tag %s", tag);
649 break;
650 }
652 tag_matches[i].tag_func (lame->lgf, value);
654 if (gst_tag_get_type (tag) == G_TYPE_UINT) {
655 g_free (value);
656 }
657 }
659 static void
660 gst_lame_set_metadata (GstLame * lame)
661 {
662 const GstTagList *user_tags;
663 GstTagList *copy;
665 g_return_if_fail (lame != NULL);
666 user_tags = gst_tag_setter_get_list (GST_TAG_SETTER (lame));
667 if ((lame->tags == NULL) && (user_tags == NULL)) {
668 return;
669 }
670 copy = gst_tag_list_merge (user_tags, lame->tags,
671 gst_tag_setter_get_merge_mode (GST_TAG_SETTER (lame)));
672 gst_tag_list_foreach ((GstTagList *) copy, add_one_tag, lame);
674 gst_tag_list_free (copy);
675 }
679 static void
680 gst_lame_set_property (GObject * object, guint prop_id, const GValue * value,
681 GParamSpec * pspec)
682 {
683 GstLame *lame;
685 /* it's not null if we got it, but it might not be ours */
686 g_return_if_fail (GST_IS_LAME (object));
688 lame = GST_LAME (object);
690 switch (prop_id) {
691 case ARG_BITRATE:
692 lame->bitrate = g_value_get_int (value);
693 break;
694 case ARG_COMPRESSION_RATIO:
695 lame->compression_ratio = g_value_get_float (value);
696 break;
697 case ARG_QUALITY:
698 lame->quality = g_value_get_enum (value);
699 break;
700 case ARG_MODE:
701 lame->mode = g_value_get_enum (value);
702 break;
703 case ARG_FORCE_MS:
704 lame->force_ms = g_value_get_boolean (value);
705 break;
706 case ARG_FREE_FORMAT:
707 lame->free_format = g_value_get_boolean (value);
708 break;
709 case ARG_COPYRIGHT:
710 lame->copyright = g_value_get_boolean (value);
711 break;
712 case ARG_ORIGINAL:
713 lame->original = g_value_get_boolean (value);
714 break;
715 case ARG_ERROR_PROTECTION:
716 lame->error_protection = g_value_get_boolean (value);
717 break;
718 case ARG_PADDING_TYPE:
719 lame->padding_type = g_value_get_int (value);
720 break;
721 case ARG_EXTENSION:
722 lame->extension = g_value_get_boolean (value);
723 break;
724 case ARG_STRICT_ISO:
725 lame->strict_iso = g_value_get_boolean (value);
726 break;
727 case ARG_DISABLE_RESERVOIR:
728 lame->disable_reservoir = g_value_get_boolean (value);
729 break;
730 case ARG_VBR:
731 lame->vbr = g_value_get_enum (value);
732 break;
733 case ARG_VBR_QUALITY:
734 lame->vbr_quality = g_value_get_enum (value);
735 break;
736 case ARG_VBR_MEAN_BITRATE:
737 lame->vbr_mean_bitrate = g_value_get_int (value);
738 break;
739 case ARG_VBR_MIN_BITRATE:
740 lame->vbr_min_bitrate = g_value_get_int (value);
741 break;
742 case ARG_VBR_MAX_BITRATE:
743 lame->vbr_max_bitrate = g_value_get_int (value);
744 break;
745 case ARG_VBR_HARD_MIN:
746 lame->vbr_hard_min = g_value_get_int (value);
747 break;
748 case ARG_LOWPASS_FREQ:
749 lame->lowpass_freq = g_value_get_int (value);
750 break;
751 case ARG_LOWPASS_WIDTH:
752 lame->lowpass_width = g_value_get_int (value);
753 break;
754 case ARG_HIGHPASS_FREQ:
755 lame->highpass_freq = g_value_get_int (value);
756 break;
757 case ARG_HIGHPASS_WIDTH:
758 lame->highpass_width = g_value_get_int (value);
759 break;
760 case ARG_ATH_ONLY:
761 lame->ath_only = g_value_get_boolean (value);
762 break;
763 case ARG_ATH_SHORT:
764 lame->ath_short = g_value_get_boolean (value);
765 break;
766 case ARG_NO_ATH:
767 lame->no_ath = g_value_get_boolean (value);
768 break;
769 case ARG_ATH_LOWER:
770 lame->ath_lower = g_value_get_int (value);
771 break;
772 case ARG_CWLIMIT:
773 lame->cwlimit = g_value_get_int (value);
774 break;
775 case ARG_ALLOW_DIFF_SHORT:
776 lame->allow_diff_short = g_value_get_boolean (value);
777 break;
778 case ARG_NO_SHORT_BLOCKS:
779 lame->no_short_blocks = g_value_get_boolean (value);
780 break;
781 case ARG_EMPHASIS:
782 lame->emphasis = g_value_get_boolean (value);
783 break;
784 case ARG_XINGHEADER:
785 lame->xingheader = g_value_get_boolean (value);
786 break;
787 #ifdef GSTLAME_PRESET
788 case ARG_PRESET:
789 lame->preset = g_value_get_enum (value);
790 break;
791 #endif
792 default:
793 break;
794 }
796 }
798 static void
799 gst_lame_get_property (GObject * object, guint prop_id, GValue * value,
800 GParamSpec * pspec)
801 {
802 GstLame *lame;
804 /* it's not null if we got it, but it might not be ours */
805 g_return_if_fail (GST_IS_LAME (object));
807 lame = GST_LAME (object);
809 switch (prop_id) {
810 case ARG_BITRATE:
811 g_value_set_int (value, lame->bitrate);
812 break;
813 case ARG_COMPRESSION_RATIO:
814 g_value_set_float (value, lame->compression_ratio);
815 break;
816 case ARG_QUALITY:
817 g_value_set_enum (value, lame->quality);
818 break;
819 case ARG_MODE:
820 g_value_set_enum (value, lame->mode);
821 break;
822 case ARG_FORCE_MS:
823 g_value_set_boolean (value, lame->force_ms);
824 break;
825 case ARG_FREE_FORMAT:
826 g_value_set_boolean (value, lame->free_format);
827 break;
828 case ARG_COPYRIGHT:
829 g_value_set_boolean (value, lame->copyright);
830 break;
831 case ARG_ORIGINAL:
832 g_value_set_boolean (value, lame->original);
833 break;
834 case ARG_ERROR_PROTECTION:
835 g_value_set_boolean (value, lame->error_protection);
836 break;
837 case ARG_PADDING_TYPE:
838 g_value_set_enum (value, lame->padding_type);
839 break;
840 case ARG_EXTENSION:
841 g_value_set_boolean (value, lame->extension);
842 break;
843 case ARG_STRICT_ISO:
844 g_value_set_boolean (value, lame->strict_iso);
845 break;
846 case ARG_DISABLE_RESERVOIR:
847 g_value_set_boolean (value, lame->disable_reservoir);
848 break;
849 case ARG_VBR:
850 g_value_set_enum (value, lame->vbr);
851 break;
852 case ARG_VBR_QUALITY:
853 g_value_set_enum (value, lame->vbr_quality);
854 break;
855 case ARG_VBR_MEAN_BITRATE:
856 g_value_set_int (value, lame->vbr_mean_bitrate);
857 break;
858 case ARG_VBR_MIN_BITRATE:
859 g_value_set_int (value, lame->vbr_min_bitrate);
860 break;
861 case ARG_VBR_MAX_BITRATE:
862 g_value_set_int (value, lame->vbr_max_bitrate);
863 break;
864 case ARG_VBR_HARD_MIN:
865 g_value_set_int (value, lame->vbr_hard_min);
866 break;
867 case ARG_LOWPASS_FREQ:
868 g_value_set_int (value, lame->lowpass_freq);
869 break;
870 case ARG_LOWPASS_WIDTH:
871 g_value_set_int (value, lame->lowpass_width);
872 break;
873 case ARG_HIGHPASS_FREQ:
874 g_value_set_int (value, lame->highpass_freq);
875 break;
876 case ARG_HIGHPASS_WIDTH:
877 g_value_set_int (value, lame->highpass_width);
878 break;
879 case ARG_ATH_ONLY:
880 g_value_set_boolean (value, lame->ath_only);
881 break;
882 case ARG_ATH_SHORT:
883 g_value_set_boolean (value, lame->ath_short);
884 break;
885 case ARG_NO_ATH:
886 g_value_set_boolean (value, lame->no_ath);
887 break;
888 case ARG_ATH_LOWER:
889 g_value_set_int (value, lame->ath_lower);
890 break;
891 case ARG_CWLIMIT:
892 g_value_set_int (value, lame->cwlimit);
893 break;
894 case ARG_ALLOW_DIFF_SHORT:
895 g_value_set_boolean (value, lame->allow_diff_short);
896 break;
897 case ARG_NO_SHORT_BLOCKS:
898 g_value_set_boolean (value, lame->no_short_blocks);
899 break;
900 case ARG_EMPHASIS:
901 g_value_set_boolean (value, lame->emphasis);
902 break;
903 case ARG_XINGHEADER:
904 g_value_set_boolean (value, lame->xingheader);
905 break;
906 #ifdef GSTLAME_PRESET
907 case ARG_PRESET:
908 g_value_set_enum (value, lame->preset);
909 break;
910 #endif
911 default:
912 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
913 break;
914 }
915 }
917 static void
918 gst_lame_chain (GstPad * pad, GstData * _data)
919 {
920 GstBuffer *buf = GST_BUFFER (_data);
921 GstLame *lame;
922 GstBuffer *outbuf;
923 gchar *mp3_data = NULL;
924 gint mp3_buffer_size, mp3_size = 0;
925 gboolean eos = FALSE;
927 lame = GST_LAME (gst_pad_get_parent (pad));
929 GST_LOG_OBJECT (lame, "entered chain");
931 if (GST_IS_EVENT (buf)) {
932 switch (GST_EVENT_TYPE (buf)) {
933 case GST_EVENT_EOS:
934 GST_DEBUG_OBJECT (lame, "handling EOS event");
935 eos = TRUE;
936 case GST_EVENT_FLUSH:
937 GST_DEBUG_OBJECT (lame, "handling FLUSH event");
938 mp3_buffer_size = 7200;
939 mp3_data = g_malloc (mp3_buffer_size);
941 mp3_size = lame_encode_flush (lame->lgf, mp3_data, mp3_buffer_size);
942 gst_event_unref (GST_EVENT (buf));
943 break;
944 case GST_EVENT_TAG:
945 GST_DEBUG_OBJECT (lame, "handling TAG event");
946 if (lame->tags) {
947 gst_tag_list_insert (lame->tags,
948 gst_event_tag_get_list (GST_EVENT (buf)),
949 gst_tag_setter_get_merge_mode (GST_TAG_SETTER (lame)));
950 } else {
951 g_assert_not_reached ();
952 }
954 gst_pad_event_default (pad, GST_EVENT (buf));
955 break;
956 case GST_EVENT_DISCONTINUOUS:
957 if (GST_EVENT_DISCONT_NEW_MEDIA (GST_EVENT (buf))) {
958 /* do not re-initialise if it is first new media discont */
959 if (lame->newmediacount++ > 0) {
960 lame_close (lame->lgf);
961 lame->lgf = lame_init ();
962 lame->initialized = FALSE;
963 lame->last_ts = GST_CLOCK_TIME_NONE;
965 gst_lame_setup (lame);
966 }
967 }
968 gst_pad_event_default (pad, GST_EVENT (buf));
970 break;
971 default:
972 gst_pad_event_default (pad, GST_EVENT (buf));
973 break;
974 }
975 } else {
976 gint64 duration;
978 if (!lame->initialized) {
979 gst_buffer_unref (buf);
980 GST_ELEMENT_ERROR (lame, CORE, NEGOTIATION, (NULL),
981 ("encoder not initialized (input is not audio?)"));
982 return;
983 }
985 /* allocate space for output */
986 mp3_buffer_size =
987 ((GST_BUFFER_SIZE (buf) / (2 + lame->num_channels)) * 1.25) + 7200;
988 mp3_data = g_malloc (mp3_buffer_size);
990 /* lame seems to be too stupid to get mono interleaved going */
991 if (lame->num_channels == 1) {
992 mp3_size = lame_encode_buffer (lame->lgf,
993 (short int *) (GST_BUFFER_DATA (buf)),
994 (short int *) (GST_BUFFER_DATA (buf)),
995 GST_BUFFER_SIZE (buf) / 2, mp3_data, mp3_buffer_size);
996 } else {
997 mp3_size = lame_encode_buffer_interleaved (lame->lgf,
998 (short int *) (GST_BUFFER_DATA (buf)),
999 GST_BUFFER_SIZE (buf) / 2 / lame->num_channels,
1000 mp3_data, mp3_buffer_size);
1001 }
1003 GST_LOG_OBJECT (lame, "encoded %d bytes of audio to %d bytes of mp3",
1004 GST_BUFFER_SIZE (buf), mp3_size);
1006 duration = (GST_SECOND * GST_BUFFER_SIZE (buf) /
1007 (2 * lame->samplerate * lame->num_channels));
1009 if (GST_BUFFER_DURATION (buf) != GST_CLOCK_TIME_NONE &&
1010 GST_BUFFER_DURATION (buf) != duration)
1011 GST_DEBUG_OBJECT (lame, "incoming buffer had incorrect duration "
1012 GST_TIME_FORMAT "outgoing buffer will have correct duration "
1013 GST_TIME_FORMAT,
1014 GST_TIME_ARGS (GST_BUFFER_DURATION (buf)), GST_TIME_ARGS (duration));
1016 if (lame->last_ts == GST_CLOCK_TIME_NONE) {
1017 lame->last_ts = GST_BUFFER_TIMESTAMP (buf);
1018 lame->last_offs = GST_BUFFER_OFFSET (buf);
1019 lame->last_duration = duration;
1020 } else {
1021 lame->last_duration += duration;
1022 }
1024 gst_buffer_unref (buf);
1025 }
1027 if (mp3_size > 0) {
1028 outbuf = gst_buffer_new ();
1029 GST_BUFFER_DATA (outbuf) = mp3_data;
1030 GST_BUFFER_SIZE (outbuf) = mp3_size;
1031 GST_BUFFER_TIMESTAMP (outbuf) = lame->last_ts;
1032 GST_BUFFER_OFFSET (outbuf) = lame->last_offs;
1033 GST_BUFFER_DURATION (outbuf) = lame->last_duration;
1035 gst_pad_push (lame->srcpad, GST_DATA (outbuf));
1037 lame->last_ts = GST_CLOCK_TIME_NONE;
1038 } else {
1039 g_free (mp3_data);
1040 }
1042 if (eos) {
1043 gst_pad_push (lame->srcpad, GST_DATA (gst_event_new (GST_EVENT_EOS)));
1044 gst_element_set_eos (GST_ELEMENT (lame));
1045 }
1046 }
1048 /* transition to the READY state by configuring the gst_lame encoder */
1049 static gboolean
1050 gst_lame_setup (GstLame * lame)
1051 {
1052 #define CHECK_ERROR(command) G_STMT_START {\
1053 if ((command) < 0) { \
1054 GST_ERROR_OBJECT (lame, "setup failed: " G_STRINGIFY (command)); \
1055 return FALSE; \
1056 } \
1057 }G_STMT_END
1058 int retval;
1060 GST_DEBUG_OBJECT (lame, "starting setup");
1062 /* check if we're already initialized; if we are, we might want to check
1063 * if this initialization is compatible with the previous one */
1064 /* FIXME: do this */
1065 if (lame->initialized) {
1066 GST_WARNING_OBJECT (lame, "already initialized");
1067 lame->initialized = FALSE;
1068 }
1070 /* copy the parameters over */
1071 lame_set_in_samplerate (lame->lgf, lame->samplerate);
1073 /* force mono encoding if we only have one channel */
1074 if (lame->num_channels == 1)
1075 lame->mode = 3;
1077 CHECK_ERROR (lame_set_num_channels (lame->lgf, lame->num_channels));
1078 CHECK_ERROR (lame_set_brate (lame->lgf, lame->bitrate));
1079 CHECK_ERROR (lame_set_compression_ratio (lame->lgf, lame->compression_ratio));
1080 CHECK_ERROR (lame_set_quality (lame->lgf, lame->quality));
1081 CHECK_ERROR (lame_set_mode (lame->lgf, lame->mode));
1082 CHECK_ERROR (lame_set_force_ms (lame->lgf, lame->force_ms));
1083 CHECK_ERROR (lame_set_free_format (lame->lgf, lame->free_format));
1084 CHECK_ERROR (lame_set_copyright (lame->lgf, lame->copyright));
1085 CHECK_ERROR (lame_set_original (lame->lgf, lame->original));
1086 CHECK_ERROR (lame_set_error_protection (lame->lgf, lame->error_protection));
1087 CHECK_ERROR (lame_set_padding_type (lame->lgf, lame->padding_type));
1088 CHECK_ERROR (lame_set_extension (lame->lgf, lame->extension));
1089 CHECK_ERROR (lame_set_strict_ISO (lame->lgf, lame->strict_iso));
1090 CHECK_ERROR (lame_set_disable_reservoir (lame->lgf, lame->disable_reservoir));
1091 CHECK_ERROR (lame_set_VBR (lame->lgf, lame->vbr));
1092 CHECK_ERROR (lame_set_VBR_q (lame->lgf, lame->vbr_quality));
1093 CHECK_ERROR (lame_set_VBR_mean_bitrate_kbps (lame->lgf,
1094 lame->vbr_mean_bitrate));
1095 CHECK_ERROR (lame_set_VBR_min_bitrate_kbps (lame->lgf,
1096 lame->vbr_min_bitrate));
1097 CHECK_ERROR (lame_set_VBR_max_bitrate_kbps (lame->lgf,
1098 lame->vbr_max_bitrate));
1099 CHECK_ERROR (lame_set_VBR_hard_min (lame->lgf, lame->vbr_hard_min));
1100 CHECK_ERROR (lame_set_lowpassfreq (lame->lgf, lame->lowpass_freq));
1101 CHECK_ERROR (lame_set_lowpasswidth (lame->lgf, lame->lowpass_width));
1102 CHECK_ERROR (lame_set_highpassfreq (lame->lgf, lame->highpass_freq));
1103 CHECK_ERROR (lame_set_highpasswidth (lame->lgf, lame->highpass_width));
1104 CHECK_ERROR (lame_set_ATHonly (lame->lgf, lame->ath_only));
1105 CHECK_ERROR (lame_set_ATHshort (lame->lgf, lame->ath_short));
1106 CHECK_ERROR (lame_set_noATH (lame->lgf, lame->no_ath));
1107 CHECK_ERROR (lame_set_ATHlower (lame->lgf, lame->ath_lower));
1108 CHECK_ERROR (lame_set_cwlimit (lame->lgf, lame->cwlimit));
1109 CHECK_ERROR (lame_set_allow_diff_short (lame->lgf, lame->allow_diff_short));
1110 CHECK_ERROR (lame_set_no_short_blocks (lame->lgf, lame->no_short_blocks));
1111 CHECK_ERROR (lame_set_emphasis (lame->lgf, lame->emphasis));
1112 CHECK_ERROR (lame_set_bWriteVbrTag (lame->lgf, lame->xingheader ? 1 : 0));
1113 #ifdef GSTLAME_PRESET
1114 if (lame->preset > 0) {
1115 CHECK_ERROR (lame_set_preset (lame->lgf, lame->preset));
1116 }
1117 #endif
1118 gst_lame_set_metadata (lame);
1120 /* initialize the lame encoder */
1121 if ((retval = lame_init_params (lame->lgf)) >= 0) {
1122 lame->initialized = TRUE;
1123 /* FIXME: it would be nice to print out the mode here */
1124 GST_INFO ("lame encoder initialized (%d kbit/s, %d Hz, %d channels)",
1125 lame->bitrate, lame->samplerate, lame->num_channels);
1126 } else {
1127 GST_ERROR_OBJECT (lame, "lame_init_params returned %d", retval);
1128 }
1130 GST_DEBUG_OBJECT (lame, "done with setup");
1132 return lame->initialized;
1133 #undef CHECK_ERROR
1134 }
1136 static GstElementStateReturn
1137 gst_lame_change_state (GstElement * element)
1138 {
1139 GstLame *lame;
1141 g_return_val_if_fail (GST_IS_LAME (element), GST_STATE_FAILURE);
1143 lame = GST_LAME (element);
1145 GST_DEBUG ("state pending %d", GST_STATE_PENDING (element));
1147 switch (GST_STATE_TRANSITION (element)) {
1148 case GST_STATE_READY_TO_PAUSED:
1149 lame->last_ts = GST_CLOCK_TIME_NONE;
1150 break;
1151 case GST_STATE_READY_TO_NULL:
1152 if (lame->initialized) {
1153 lame_close (lame->lgf);
1154 lame->lgf = lame_init ();
1155 lame->initialized = FALSE;
1156 }
1157 break;
1158 default:
1159 break;
1160 }
1162 /* if we haven't failed already, give the parent class a chance to ;-) */
1163 if (GST_ELEMENT_CLASS (parent_class)->change_state)
1164 return GST_ELEMENT_CLASS (parent_class)->change_state (element);
1166 return GST_STATE_SUCCESS;
1167 }
1169 static gboolean
1170 plugin_init (GstPlugin * plugin)
1171 {
1172 if (!gst_element_register (plugin, "lame", GST_RANK_NONE, GST_TYPE_LAME))
1173 return FALSE;
1175 GST_DEBUG_CATEGORY_INIT (debug, "lame", 0, "lame mp3 encoder");
1176 return TRUE;
1177 }
1179 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
1180 GST_VERSION_MINOR,
1181 "lame",
1182 "Encode MP3's with LAME",
1183 plugin_init, VERSION, "LGPL", GST_PACKAGE, GST_ORIGIN)