2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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.
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.
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.
24 #include <gstflacenc.h>
26 #include "flac_compat.h"
28 extern GstPadTemplate *gst_flacenc_src_template, *gst_flacenc_sink_template;
30 /* elementfactory information */
31 GstElementDetails flacenc_details = {
33 "Codec/Audio/Encoder",
35 "Encodes audio with the FLAC lossless audio encoder",
37 "Wim Taymans <wim.taymans@chello.be>",
41 /* FlacEnc signals and args */
50 ARG_STREAMABLE_SUBSET,
52 ARG_LOOSE_MID_SIDE_STEREO,
55 ARG_QLP_COEFF_PRECISION,
56 ARG_QLP_COEFF_PREC_SEARCH,
58 ARG_EXHAUSTIVE_MODEL_SEARCH,
59 ARG_MIN_RESIDUAL_PARTITION_ORDER,
60 ARG_MAX_RESIDUAL_PARTITION_ORDER,
61 ARG_RICE_PARAMETER_SEARCH_DIST,
64 static void gst_flacenc_init (FlacEnc *flacenc);
65 static void gst_flacenc_class_init (FlacEncClass *klass);
66 static void gst_flacenc_dispose (GObject *object);
68 static GstPadLinkReturn
69 gst_flacenc_sinkconnect (GstPad *pad, GstCaps *caps);
70 static void gst_flacenc_chain (GstPad *pad, GstBuffer *buf);
72 static gboolean gst_flacenc_update_quality (FlacEnc *flacenc, gint quality);
73 static void gst_flacenc_set_property (GObject *object, guint prop_id,
74 const GValue *value, GParamSpec *pspec);
75 static void gst_flacenc_get_property (GObject *object, guint prop_id,
76 GValue *value, GParamSpec *pspec);
77 static GstElementStateReturn
78 gst_flacenc_change_state (GstElement *element);
80 static FLAC__StreamEncoderWriteStatus
81 gst_flacenc_write_callback (const FLAC__StreamEncoder *encoder,
82 const FLAC__byte buffer[], unsigned bytes,
83 unsigned samples, unsigned current_frame,
85 static void gst_flacenc_metadata_callback (const FLAC__StreamEncoder *encoder,
86 const FLAC__StreamMetadata *metadata,
89 static GstElementClass *parent_class = NULL;
90 /*static guint gst_flacenc_signals[LAST_SIGNAL] = { 0 }; */
93 flacenc_get_type (void)
95 static GType flacenc_type = 0;
98 static const GTypeInfo flacenc_info = {
102 (GClassInitFunc)gst_flacenc_class_init,
107 (GInstanceInitFunc)gst_flacenc_init,
109 flacenc_type = g_type_register_static (GST_TYPE_ELEMENT, "FlacEnc", &flacenc_info, 0);
115 gboolean exhaustive_model_search;
116 gboolean escape_coding;
118 gboolean loose_mid_side;
119 guint qlp_coeff_precision;
120 gboolean qlp_coeff_prec_search;
121 guint min_residual_partition_order;
122 guint max_residual_partition_order;
123 guint rice_parameter_search_dist;
128 static const FlacEncParams flacenc_params[] =
130 { FALSE, FALSE, FALSE, FALSE, 0, FALSE, 2, 2, 0, 0, 1152 },
131 { FALSE, FALSE, TRUE, TRUE, 0, FALSE, 2, 2, 0, 0, 1152 },
132 { FALSE, FALSE, TRUE, FALSE, 0, FALSE, 0, 3, 0, 0, 1152 },
133 { FALSE, FALSE, FALSE, FALSE, 0, FALSE, 3, 3, 0, 6, 4608 },
134 { FALSE, FALSE, TRUE, TRUE, 0, FALSE, 3, 3, 0, 8, 4608 },
135 { FALSE, FALSE, TRUE, FALSE, 0, FALSE, 3, 3, 0, 8, 4608 },
136 { FALSE, FALSE, TRUE, FALSE, 0, FALSE, 0, 4, 0, 8, 4608 },
137 { TRUE, FALSE, TRUE, FALSE, 0, FALSE, 0, 6, 0, 8, 4608 },
138 { TRUE, FALSE, TRUE, FALSE, 0, FALSE, 0, 6, 0, 12, 4608 },
139 { TRUE, TRUE, TRUE, FALSE, 0, FALSE, 0, 16, 0, 32, 4608 },
142 #define DEFAULT_QUALITY 5
144 #define GST_TYPE_FLACENC_QUALITY (gst_flacenc_quality_get_type ())
146 gst_flacenc_quality_get_type (void)
148 static GType qtype = 0;
150 static const GEnumValue values[] = {
151 { 0, "0", "0 - Fastest compression" },
156 { 5, "5", "5 - Default" },
159 { 8, "8", "8 - Highest compression " },
160 { 9, "9", "9 - Insane" },
163 qtype = g_enum_register_static ("FlacEncQuality", values);
169 gst_flacenc_class_init (FlacEncClass *klass)
171 GObjectClass *gobject_class;
172 GstElementClass *gstelement_class;
174 gobject_class = (GObjectClass*)klass;
175 gstelement_class = (GstElementClass*)klass;
177 parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
179 /* we have no properties atm so this is a bit silly */
180 gobject_class->set_property = gst_flacenc_set_property;
181 gobject_class->get_property = gst_flacenc_get_property;
182 gobject_class->dispose = gst_flacenc_dispose;
184 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_QUALITY,
185 g_param_spec_enum ("quality",
187 "Speed versus compression tradeoff",
188 GST_TYPE_FLACENC_QUALITY, DEFAULT_QUALITY, G_PARAM_READWRITE));
189 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_STREAMABLE_SUBSET,
190 g_param_spec_boolean ("streamable_subset",
192 "true to limit encoder to generating a Subset stream, else false",
193 TRUE, G_PARAM_READWRITE));
194 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MID_SIDE_STEREO,
195 g_param_spec_boolean ("mid_side_stereo",
196 "Do mid side stereo",
197 "Do mid side stereo (only for stereo input)",
198 flacenc_params[DEFAULT_QUALITY].mid_side, G_PARAM_READWRITE));
199 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LOOSE_MID_SIDE_STEREO,
200 g_param_spec_boolean ("loose_mid_side_stereo",
201 "Loose mid side stereo",
202 "Loose mid side stereo",
203 flacenc_params[DEFAULT_QUALITY].loose_mid_side, G_PARAM_READWRITE));
204 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BLOCKSIZE,
205 g_param_spec_uint ("blocksize",
207 "Blocksize in samples",
208 FLAC__MIN_BLOCK_SIZE, FLAC__MAX_BLOCK_SIZE,
209 flacenc_params[DEFAULT_QUALITY].blocksize, G_PARAM_READWRITE));
210 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MAX_LPC_ORDER,
211 g_param_spec_uint ("max_lpc_order",
213 "Max LPC order; 0 => use only fixed predictors",
214 0, FLAC__MAX_LPC_ORDER,
215 flacenc_params[DEFAULT_QUALITY].max_lpc_order, G_PARAM_READWRITE));
216 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_QLP_COEFF_PRECISION,
217 g_param_spec_uint ("qlp_coeff_precision",
218 "QLP coefficients precision",
219 "Precision in bits of quantized linear-predictor coefficients; 0 = automatic",
221 flacenc_params[DEFAULT_QUALITY].qlp_coeff_precision, G_PARAM_READWRITE));
222 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_QLP_COEFF_PREC_SEARCH,
223 g_param_spec_boolean ("qlp_coeff_prec_search",
224 "Do QLP coefficients precision search",
225 "false = use qlp_coeff_precision, "
226 "true = search around qlp_coeff_precision, take best",
227 flacenc_params[DEFAULT_QUALITY].qlp_coeff_prec_search, G_PARAM_READWRITE));
228 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ESCAPE_CODING,
229 g_param_spec_boolean ("escape_coding",
231 "search for escape codes in the entropy coding stage "
232 "for slightly better compression",
233 flacenc_params[DEFAULT_QUALITY].escape_coding, G_PARAM_READWRITE));
234 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_EXHAUSTIVE_MODEL_SEARCH,
235 g_param_spec_boolean ("exhaustive_model_search",
236 "Do exhaustive model search",
237 "do exhaustive search of LP coefficient quantization (expensive!)",
238 flacenc_params[DEFAULT_QUALITY].exhaustive_model_search, G_PARAM_READWRITE));
239 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MIN_RESIDUAL_PARTITION_ORDER,
240 g_param_spec_uint ("min_residual_partition_order",
241 "Min residual partition order",
242 "Min residual partition order (above 4 doesn't usually help much)",
244 flacenc_params[DEFAULT_QUALITY].min_residual_partition_order, G_PARAM_READWRITE));
245 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MAX_RESIDUAL_PARTITION_ORDER,
246 g_param_spec_uint ("max_residual_partition_order",
247 "Max residual partition order",
248 "Max residual partition order (above 4 doesn't usually help much)",
250 flacenc_params[DEFAULT_QUALITY].max_residual_partition_order, G_PARAM_READWRITE));
251 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_RICE_PARAMETER_SEARCH_DIST,
252 g_param_spec_uint ("rice_parameter_search_dist",
253 "rice_parameter_search_dist",
254 "0 = try only calc'd parameter k; else try all [k-dist..k+dist] "
255 "parameters, use best",
256 0, FLAC__MAX_RICE_PARTITION_ORDER,
257 flacenc_params[DEFAULT_QUALITY].rice_parameter_search_dist, G_PARAM_READWRITE));
259 gstelement_class->change_state = gst_flacenc_change_state;
263 gst_flacenc_init (FlacEnc *flacenc)
265 flacenc->sinkpad = gst_pad_new_from_template (gst_flacenc_sink_template, "sink");
266 gst_element_add_pad(GST_ELEMENT(flacenc),flacenc->sinkpad);
267 gst_pad_set_chain_function(flacenc->sinkpad,gst_flacenc_chain);
268 gst_pad_set_link_function (flacenc->sinkpad, gst_flacenc_sinkconnect);
270 flacenc->srcpad = gst_pad_new_from_template (gst_flacenc_src_template, "src");
271 gst_element_add_pad(GST_ELEMENT(flacenc),flacenc->srcpad);
273 GST_FLAG_SET (flacenc, GST_ELEMENT_EVENT_AWARE);
275 flacenc->encoder = FLAC__stream_encoder_new();
277 FLAC__stream_encoder_set_write_callback (flacenc->encoder,
278 gst_flacenc_write_callback);
279 FLAC__stream_encoder_set_metadata_callback (flacenc->encoder,
280 gst_flacenc_metadata_callback);
281 FLAC__stream_encoder_set_client_data (flacenc->encoder,
284 flacenc->negotiated = FALSE;
285 flacenc->first = TRUE;
286 flacenc->first_buf = NULL;
287 flacenc->data = NULL;
288 gst_flacenc_update_quality (flacenc, DEFAULT_QUALITY);
292 gst_flacenc_dispose (GObject *object)
294 FlacEnc *flacenc = GST_FLACENC (object);
296 FLAC__stream_encoder_delete (flacenc->encoder);
298 G_OBJECT_CLASS (parent_class)->dispose (object);
301 static GstPadLinkReturn
302 gst_flacenc_sinkconnect (GstPad *pad, GstCaps *caps)
306 flacenc = GST_FLACENC (gst_pad_get_parent (pad));
308 if (!GST_CAPS_IS_FIXED (caps))
309 return GST_PAD_LINK_DELAYED;
311 gst_caps_get_int (caps, "channels", &flacenc->channels);
312 gst_caps_get_int (caps, "depth", &flacenc->depth);
313 gst_caps_get_int (caps, "rate", &flacenc->sample_rate);
315 FLAC__stream_encoder_set_bits_per_sample (flacenc->encoder,
317 FLAC__stream_encoder_set_sample_rate (flacenc->encoder,
318 flacenc->sample_rate);
319 FLAC__stream_encoder_set_channels (flacenc->encoder,
322 flacenc->negotiated = TRUE;
324 return GST_PAD_LINK_OK;
328 gst_flacenc_update_quality (FlacEnc *flacenc, gint quality)
330 flacenc->quality = quality;
332 #define DO_UPDATE(name, val, str) \
334 if (FLAC__stream_encoder_get_##name (flacenc->encoder) != \
335 flacenc_params[quality].val) { \
336 FLAC__stream_encoder_set_##name (flacenc->encoder, \
337 flacenc_params[quality].val); \
338 g_object_notify (G_OBJECT (flacenc), str); \
342 g_object_freeze_notify (G_OBJECT (flacenc));
344 DO_UPDATE (do_mid_side_stereo, mid_side, "mid_side_stereo");
345 DO_UPDATE (loose_mid_side_stereo, loose_mid_side, "loose_mid_side");
346 DO_UPDATE (blocksize, blocksize, "blocksize");
347 DO_UPDATE (max_lpc_order, max_lpc_order, "max_lpc_order");
348 DO_UPDATE (qlp_coeff_precision, qlp_coeff_precision, "qlp_coeff_precision");
349 DO_UPDATE (do_qlp_coeff_prec_search, qlp_coeff_prec_search, "qlp_coeff_prec_search");
350 DO_UPDATE (do_escape_coding, escape_coding, "escape_coding");
351 DO_UPDATE (do_exhaustive_model_search, exhaustive_model_search, "exhaustive_model_search");
352 DO_UPDATE (min_residual_partition_order, min_residual_partition_order, "min_residual_partition_order");
353 DO_UPDATE (max_residual_partition_order, max_residual_partition_order, "max_residual_partition_order");
354 DO_UPDATE (rice_parameter_search_dist, rice_parameter_search_dist, "rice_parameter_search_dist");
358 g_object_thaw_notify (G_OBJECT (flacenc));
363 static FLAC__StreamEncoderWriteStatus
364 gst_flacenc_write_callback (const FLAC__StreamEncoder *encoder,
365 const FLAC__byte buffer[], unsigned bytes,
366 unsigned samples, unsigned current_frame,
372 flacenc = GST_FLACENC (client_data);
374 if (flacenc->stopped)
375 return FLAC__STREAM_ENCODER_OK;
377 outbuf = gst_buffer_new_and_alloc (bytes);
379 memcpy (GST_BUFFER_DATA (outbuf), buffer, bytes);
381 if (flacenc->first) {
382 flacenc->first_buf = outbuf;
383 gst_buffer_ref (outbuf);
384 flacenc->first = FALSE;
387 gst_pad_push (flacenc->srcpad, outbuf);
389 return FLAC__STREAM_ENCODER_OK;
393 gst_flacenc_metadata_callback (const FLAC__StreamEncoder *encoder,
394 const FLAC__StreamMetadata *metadata,
400 flacenc = GST_FLACENC (client_data);
402 if (flacenc->stopped)
405 event = gst_event_new_discontinuous (FALSE, GST_FORMAT_BYTES, (gint64) 0, GST_FORMAT_UNDEFINED);
406 gst_pad_push (flacenc->srcpad, GST_BUFFER (event));
408 /* FIXME: the first buffer seems to be 4 bytes only, so this'll never be true */
409 if (flacenc->first_buf && GST_BUFFER_SIZE (flacenc->first_buf) >= 42) {
410 const FLAC__uint64 samples = metadata->data.stream_info.total_samples;
411 const unsigned min_framesize = metadata->data.stream_info.min_framesize;
412 const unsigned max_framesize = metadata->data.stream_info.max_framesize;
414 GstBuffer *outbuf = gst_buffer_copy_on_write (flacenc->first_buf);
415 guint8 *data = GST_BUFFER_DATA (outbuf);
417 /* this looks evil but is actually how one is supposed to write
418 * the stream stats according to the FLAC examples */
420 memcpy (&data[26], metadata->data.stream_info.md5sum, 16);
422 data[21] = (data[21] & 0xf0) |
423 (FLAC__byte)((samples >> 32) & 0x0f);
424 data[22] = (FLAC__byte)((samples >> 24) & 0xff);
425 data[23] = (FLAC__byte)((samples >> 16) & 0xff);
426 data[24] = (FLAC__byte)((samples >> 8 ) & 0xff);
427 data[25] = (FLAC__byte)((samples ) & 0xff);
429 data[12] = (FLAC__byte)((min_framesize >> 16) & 0xFF);
430 data[13] = (FLAC__byte)((min_framesize >> 8 ) & 0xFF);
431 data[14] = (FLAC__byte)((min_framesize ) & 0xFF);
433 data[15] = (FLAC__byte)((max_framesize >> 16) & 0xFF);
434 data[16] = (FLAC__byte)((max_framesize >> 8 ) & 0xFF);
435 data[17] = (FLAC__byte)((max_framesize ) & 0xFF);
437 flacenc->first_buf = NULL;
438 gst_pad_push (flacenc->srcpad, outbuf);
443 gst_flacenc_chain (GstPad *pad, GstBuffer *buf)
452 g_return_if_fail(buf != NULL);
454 flacenc = GST_FLACENC (gst_pad_get_parent (pad));
456 if (GST_IS_EVENT (buf)) {
457 GstEvent *event = GST_EVENT (buf);
459 switch (GST_EVENT_TYPE (event)) {
461 FLAC__stream_encoder_finish(flacenc->encoder);
463 gst_pad_event_default (pad, event);
469 if (!flacenc->negotiated) {
470 gst_element_error (GST_ELEMENT (flacenc),
471 "format not negotiated");
475 depth = flacenc->depth;
477 insize = GST_BUFFER_SIZE (buf);
478 samples = insize / ((depth+7)>>3);
480 if (FLAC__stream_encoder_get_state (flacenc->encoder) ==
481 FLAC__STREAM_ENCODER_UNINITIALIZED)
483 FLAC__StreamEncoderState state;
485 state = FLAC__stream_encoder_init (flacenc->encoder);
486 if (state != FLAC__STREAM_ENCODER_OK) {
487 gst_element_error (GST_ELEMENT (flacenc),
488 "could not initialize encoder (wrong parameters?)");
493 /* we keep a pointer in the flacenc struct because we are freeing the data
494 * after a push opreration that might never return */
495 data = flacenc->data = g_malloc (samples * sizeof (FLAC__int32));
498 gint8 *indata = (gint8 *) GST_BUFFER_DATA (buf);
500 for (i=0; i<samples; i++) {
501 data[i] = (FLAC__int32) *indata++;
504 else if (depth == 16) {
505 gint16 *indata = (gint16 *) GST_BUFFER_DATA (buf);
507 for (i=0; i<samples; i++) {
508 data[i] = (FLAC__int32) *indata++;
512 gst_buffer_unref(buf);
514 res = FLAC__stream_encoder_process_interleaved (flacenc->encoder,
515 (const FLAC__int32 *) data, samples / flacenc->channels);
517 g_free (flacenc->data);
518 flacenc->data = NULL;
521 gst_element_error (GST_ELEMENT (flacenc),
527 gst_flacenc_set_property (GObject *object, guint prop_id,
528 const GValue *value, GParamSpec *pspec)
532 this = (FlacEnc *)object;
535 gst_flacenc_update_quality (this, g_value_get_enum (value));
537 case ARG_STREAMABLE_SUBSET:
538 FLAC__stream_encoder_set_streamable_subset (this->encoder,
539 g_value_get_boolean (value));
541 case ARG_MID_SIDE_STEREO:
542 FLAC__stream_encoder_set_do_mid_side_stereo (this->encoder,
543 g_value_get_boolean (value));
545 case ARG_LOOSE_MID_SIDE_STEREO:
546 FLAC__stream_encoder_set_loose_mid_side_stereo (this->encoder,
547 g_value_get_boolean (value));
550 FLAC__stream_encoder_set_blocksize (this->encoder,
551 g_value_get_uint (value));
553 case ARG_MAX_LPC_ORDER:
554 FLAC__stream_encoder_set_max_lpc_order (this->encoder,
555 g_value_get_uint (value));
557 case ARG_QLP_COEFF_PRECISION:
558 FLAC__stream_encoder_set_qlp_coeff_precision (this->encoder,
559 g_value_get_uint (value));
561 case ARG_QLP_COEFF_PREC_SEARCH:
562 FLAC__stream_encoder_set_do_qlp_coeff_prec_search (this->encoder,
563 g_value_get_boolean (value));
565 case ARG_ESCAPE_CODING:
566 FLAC__stream_encoder_set_do_escape_coding (this->encoder,
567 g_value_get_boolean (value));
569 case ARG_EXHAUSTIVE_MODEL_SEARCH:
570 FLAC__stream_encoder_set_do_exhaustive_model_search (this->encoder,
571 g_value_get_boolean (value));
573 case ARG_MIN_RESIDUAL_PARTITION_ORDER:
574 FLAC__stream_encoder_set_min_residual_partition_order (this->encoder,
575 g_value_get_uint (value));
577 case ARG_MAX_RESIDUAL_PARTITION_ORDER:
578 FLAC__stream_encoder_set_max_residual_partition_order (this->encoder,
579 g_value_get_uint (value));
581 case ARG_RICE_PARAMETER_SEARCH_DIST:
582 FLAC__stream_encoder_set_rice_parameter_search_dist (this->encoder,
583 g_value_get_uint (value));
586 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
592 gst_flacenc_get_property (GObject *object, guint prop_id,
593 GValue *value, GParamSpec *pspec)
597 this = (FlacEnc *)object;
601 g_value_set_enum (value, this->quality);
603 case ARG_STREAMABLE_SUBSET:
604 g_value_set_boolean (value,
605 FLAC__stream_encoder_get_streamable_subset (this->encoder));
607 case ARG_MID_SIDE_STEREO:
608 g_value_set_boolean (value,
609 FLAC__stream_encoder_get_do_mid_side_stereo (this->encoder));
611 case ARG_LOOSE_MID_SIDE_STEREO:
612 g_value_set_boolean (value,
613 FLAC__stream_encoder_get_loose_mid_side_stereo (this->encoder));
616 g_value_set_uint (value,
617 FLAC__stream_encoder_get_blocksize (this->encoder));
619 case ARG_MAX_LPC_ORDER:
620 g_value_set_uint (value,
621 FLAC__stream_encoder_get_max_lpc_order (this->encoder));
623 case ARG_QLP_COEFF_PRECISION:
624 g_value_set_uint (value,
625 FLAC__stream_encoder_get_qlp_coeff_precision (this->encoder));
627 case ARG_QLP_COEFF_PREC_SEARCH:
628 g_value_set_boolean (value,
629 FLAC__stream_encoder_get_do_qlp_coeff_prec_search (this->encoder));
631 case ARG_ESCAPE_CODING:
632 g_value_set_boolean (value,
633 FLAC__stream_encoder_get_do_escape_coding (this->encoder));
635 case ARG_EXHAUSTIVE_MODEL_SEARCH:
636 g_value_set_boolean (value,
637 FLAC__stream_encoder_get_do_exhaustive_model_search (this->encoder));
639 case ARG_MIN_RESIDUAL_PARTITION_ORDER:
640 g_value_set_uint (value,
641 FLAC__stream_encoder_get_min_residual_partition_order (this->encoder));
643 case ARG_MAX_RESIDUAL_PARTITION_ORDER:
644 g_value_set_uint (value,
645 FLAC__stream_encoder_get_max_residual_partition_order (this->encoder));
647 case ARG_RICE_PARAMETER_SEARCH_DIST:
648 g_value_set_uint (value,
649 FLAC__stream_encoder_get_rice_parameter_search_dist (this->encoder));
652 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
657 static GstElementStateReturn
658 gst_flacenc_change_state (GstElement *element)
660 FlacEnc *flacenc = GST_FLACENC (element);
662 switch (GST_STATE_TRANSITION (element)) {
663 case GST_STATE_NULL_TO_READY:
664 case GST_STATE_READY_TO_PAUSED:
665 flacenc->first = TRUE;
666 flacenc->stopped = FALSE;
668 case GST_STATE_PAUSED_TO_PLAYING:
669 case GST_STATE_PLAYING_TO_PAUSED:
671 case GST_STATE_PAUSED_TO_READY:
672 if (FLAC__stream_encoder_get_state (flacenc->encoder) !=
673 FLAC__STREAM_ENCODER_UNINITIALIZED) {
674 flacenc->stopped = TRUE;
675 FLAC__stream_encoder_finish (flacenc->encoder);
677 flacenc->negotiated = FALSE;
678 if (flacenc->first_buf)
679 gst_buffer_unref (flacenc->first_buf);
680 flacenc->first_buf = NULL;
681 g_free (flacenc->data);
682 flacenc->data = NULL;
684 case GST_STATE_READY_TO_NULL:
689 if (GST_ELEMENT_CLASS (parent_class)->change_state)
690 return GST_ELEMENT_CLASS (parent_class)->change_state (element);
692 return GST_STATE_SUCCESS;