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.
27 #include <gstflacenc.h>
28 #include <gst/audio/audio.h>
29 #include <gst/tag/tag.h>
30 #include <gst/gsttagsetter.h>
33 static const GstElementDetails flacenc_details =
34 GST_ELEMENT_DETAILS ("FLAC audio encoder",
35 "Codec/Encoder/Audio",
36 "Encodes audio with the FLAC lossless audio encoder",
37 "Wim Taymans <wim.taymans@chello.be>");
39 #define FLAC_SINK_CAPS \
41 "endianness = (int) BYTE_ORDER, " \
42 "signed = (boolean) TRUE, " \
43 "width = (int) 16, " \
44 "depth = (int) 16, " \
45 "rate = (int) [ 8000, 48000 ], " \
46 "channels = (int) [ 1, 2 ]"
48 static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
51 GST_STATIC_CAPS ("audio/x-flac")
54 static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
57 GST_STATIC_CAPS (FLAC_SINK_CAPS)
64 PROP_STREAMABLE_SUBSET,
66 PROP_LOOSE_MID_SIDE_STEREO,
69 PROP_QLP_COEFF_PRECISION,
70 PROP_QLP_COEFF_PREC_SEARCH,
72 PROP_EXHAUSTIVE_MODEL_SEARCH,
73 PROP_MIN_RESIDUAL_PARTITION_ORDER,
74 PROP_MAX_RESIDUAL_PARTITION_ORDER,
75 PROP_RICE_PARAMETER_SEARCH_DIST
78 GST_DEBUG_CATEGORY_STATIC (flacenc_debug);
79 #define GST_CAT_DEFAULT flacenc_debug
82 #define _do_init(type) \
84 static const GInterfaceInfo tag_setter_info = { \
89 g_type_add_interface_static (type, GST_TYPE_TAG_SETTER, \
93 GST_BOILERPLATE_FULL (GstFlacEnc, gst_flac_enc, GstElement, GST_TYPE_ELEMENT,
96 static void gst_flac_enc_finalize (GObject * object);
98 static gboolean gst_flac_enc_sink_setcaps (GstPad * pad, GstCaps * caps);
99 static gboolean gst_flac_enc_sink_event (GstPad * pad, GstEvent * event);
100 static GstFlowReturn gst_flac_enc_chain (GstPad * pad, GstBuffer * buffer);
102 static gboolean gst_flac_enc_update_quality (GstFlacEnc * flacenc,
104 static void gst_flac_enc_set_property (GObject * object, guint prop_id,
105 const GValue * value, GParamSpec * pspec);
106 static void gst_flac_enc_get_property (GObject * object, guint prop_id,
107 GValue * value, GParamSpec * pspec);
108 static GstStateChangeReturn gst_flac_enc_change_state (GstElement * element,
109 GstStateChange transition);
111 static FLAC__StreamEncoderWriteStatus
112 gst_flac_enc_write_callback (const FLAC__SeekableStreamEncoder * encoder,
113 const FLAC__byte buffer[], unsigned bytes,
114 unsigned samples, unsigned current_frame, void *client_data);
115 static FLAC__SeekableStreamEncoderSeekStatus
116 gst_flac_enc_seek_callback (const FLAC__SeekableStreamEncoder * encoder,
117 FLAC__uint64 absolute_byte_offset, void *client_data);
118 static FLAC__SeekableStreamEncoderTellStatus
119 gst_flac_enc_tell_callback (const FLAC__SeekableStreamEncoder * encoder,
120 FLAC__uint64 * absolute_byte_offset, void *client_data);
124 gboolean exhaustive_model_search;
125 gboolean escape_coding;
127 gboolean loose_mid_side;
128 guint qlp_coeff_precision;
129 gboolean qlp_coeff_prec_search;
130 guint min_residual_partition_order;
131 guint max_residual_partition_order;
132 guint rice_parameter_search_dist;
138 static const GstFlacEncParams flacenc_params[] = {
139 {FALSE, FALSE, FALSE, FALSE, 0, FALSE, 2, 2, 0, 0, 1152},
140 {FALSE, FALSE, TRUE, TRUE, 0, FALSE, 2, 2, 0, 0, 1152},
141 {FALSE, FALSE, TRUE, FALSE, 0, FALSE, 0, 3, 0, 0, 1152},
142 {FALSE, FALSE, FALSE, FALSE, 0, FALSE, 3, 3, 0, 6, 4608},
143 {FALSE, FALSE, TRUE, TRUE, 0, FALSE, 3, 3, 0, 8, 4608},
144 {FALSE, FALSE, TRUE, FALSE, 0, FALSE, 3, 3, 0, 8, 4608},
145 {FALSE, FALSE, TRUE, FALSE, 0, FALSE, 0, 4, 0, 8, 4608},
146 {TRUE, FALSE, TRUE, FALSE, 0, FALSE, 0, 6, 0, 8, 4608},
147 {TRUE, FALSE, TRUE, FALSE, 0, FALSE, 0, 6, 0, 12, 4608},
148 {TRUE, TRUE, TRUE, FALSE, 0, FALSE, 0, 16, 0, 32, 4608},
151 #define DEFAULT_QUALITY 5
153 #define GST_TYPE_FLAC_ENC_QUALITY (gst_flac_enc_quality_get_type ())
155 gst_flac_enc_quality_get_type (void)
157 static GType qtype = 0;
160 static const GEnumValue values[] = {
161 {0, "0 - Fastest compression", "0"},
166 {5, "5 - Default", "5"},
169 {8, "8 - Highest compression", "8"},
170 {9, "9 - Insane", "9"},
174 qtype = g_enum_register_static ("GstFlacEncQuality", values);
180 gst_flac_enc_base_init (gpointer g_class)
182 GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
184 gst_element_class_add_pad_template (element_class,
185 gst_static_pad_template_get (&src_factory));
186 gst_element_class_add_pad_template (element_class,
187 gst_static_pad_template_get (&sink_factory));
189 gst_element_class_set_details (element_class, &flacenc_details);
191 GST_DEBUG_CATEGORY_INIT (flacenc_debug, "flacenc", 0,
192 "Flac encoding element");
196 gst_flac_enc_class_init (GstFlacEncClass * klass)
198 GObjectClass *gobject_class;
199 GstElementClass *gstelement_class;
201 gobject_class = (GObjectClass *) klass;
202 gstelement_class = (GstElementClass *) klass;
204 gobject_class->set_property = gst_flac_enc_set_property;
205 gobject_class->get_property = gst_flac_enc_get_property;
206 gobject_class->finalize = gst_flac_enc_finalize;
208 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_QUALITY,
209 g_param_spec_enum ("quality",
211 "Speed versus compression tradeoff",
212 GST_TYPE_FLAC_ENC_QUALITY, DEFAULT_QUALITY, G_PARAM_READWRITE));
213 g_object_class_install_property (G_OBJECT_CLASS (klass),
214 PROP_STREAMABLE_SUBSET, g_param_spec_boolean ("streamable_subset",
216 "true to limit encoder to generating a Subset stream, else false",
217 TRUE, G_PARAM_READWRITE));
218 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MID_SIDE_STEREO,
219 g_param_spec_boolean ("mid_side_stereo", "Do mid side stereo",
220 "Do mid side stereo (only for stereo input)",
221 flacenc_params[DEFAULT_QUALITY].mid_side, G_PARAM_READWRITE));
222 g_object_class_install_property (G_OBJECT_CLASS (klass),
223 PROP_LOOSE_MID_SIDE_STEREO, g_param_spec_boolean ("loose_mid_side_stereo",
224 "Loose mid side stereo", "Loose mid side stereo",
225 flacenc_params[DEFAULT_QUALITY].loose_mid_side, G_PARAM_READWRITE));
226 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_BLOCKSIZE,
227 g_param_spec_uint ("blocksize", "Blocksize", "Blocksize in samples",
228 FLAC__MIN_BLOCK_SIZE, FLAC__MAX_BLOCK_SIZE,
229 flacenc_params[DEFAULT_QUALITY].blocksize, G_PARAM_READWRITE));
230 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MAX_LPC_ORDER,
231 g_param_spec_uint ("max_lpc_order", "Max LPC order",
232 "Max LPC order; 0 => use only fixed predictors", 0,
233 FLAC__MAX_LPC_ORDER, flacenc_params[DEFAULT_QUALITY].max_lpc_order,
235 g_object_class_install_property (G_OBJECT_CLASS (klass),
236 PROP_QLP_COEFF_PRECISION, g_param_spec_uint ("qlp_coeff_precision",
237 "QLP coefficients precision",
238 "Precision in bits of quantized linear-predictor coefficients; 0 = automatic",
239 0, 32, flacenc_params[DEFAULT_QUALITY].qlp_coeff_precision,
241 g_object_class_install_property (G_OBJECT_CLASS (klass),
242 PROP_QLP_COEFF_PREC_SEARCH, g_param_spec_boolean ("qlp_coeff_prec_search",
243 "Do QLP coefficients precision search",
244 "false = use qlp_coeff_precision, "
245 "true = search around qlp_coeff_precision, take best",
246 flacenc_params[DEFAULT_QUALITY].qlp_coeff_prec_search,
248 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_ESCAPE_CODING,
249 g_param_spec_boolean ("escape_coding", "Do Escape coding",
250 "search for escape codes in the entropy coding stage "
251 "for slightly better compression",
252 flacenc_params[DEFAULT_QUALITY].escape_coding, G_PARAM_READWRITE));
253 g_object_class_install_property (G_OBJECT_CLASS (klass),
254 PROP_EXHAUSTIVE_MODEL_SEARCH,
255 g_param_spec_boolean ("exhaustive_model_search",
256 "Do exhaustive model search",
257 "do exhaustive search of LP coefficient quantization (expensive!)",
258 flacenc_params[DEFAULT_QUALITY].exhaustive_model_search,
260 g_object_class_install_property (G_OBJECT_CLASS (klass),
261 PROP_MIN_RESIDUAL_PARTITION_ORDER,
262 g_param_spec_uint ("min_residual_partition_order",
263 "Min residual partition order",
264 "Min residual partition order (above 4 doesn't usually help much)", 0,
265 16, flacenc_params[DEFAULT_QUALITY].min_residual_partition_order,
267 g_object_class_install_property (G_OBJECT_CLASS (klass),
268 PROP_MAX_RESIDUAL_PARTITION_ORDER,
269 g_param_spec_uint ("max_residual_partition_order",
270 "Max residual partition order",
271 "Max residual partition order (above 4 doesn't usually help much)", 0,
272 16, flacenc_params[DEFAULT_QUALITY].max_residual_partition_order,
274 g_object_class_install_property (G_OBJECT_CLASS (klass),
275 PROP_RICE_PARAMETER_SEARCH_DIST,
276 g_param_spec_uint ("rice_parameter_search_dist",
277 "rice_parameter_search_dist",
278 "0 = try only calc'd parameter k; else try all [k-dist..k+dist] "
279 "parameters, use best", 0, FLAC__MAX_RICE_PARTITION_ORDER,
280 flacenc_params[DEFAULT_QUALITY].rice_parameter_search_dist,
283 gstelement_class->change_state = gst_flac_enc_change_state;
287 gst_flac_enc_init (GstFlacEnc * flacenc, GstFlacEncClass * klass)
289 GstElementClass *eclass = GST_ELEMENT_CLASS (klass);
292 gst_pad_new_from_template (gst_element_class_get_pad_template (eclass,
294 gst_element_add_pad (GST_ELEMENT (flacenc), flacenc->sinkpad);
295 gst_pad_set_chain_function (flacenc->sinkpad, gst_flac_enc_chain);
296 gst_pad_set_event_function (flacenc->sinkpad, gst_flac_enc_sink_event);
297 gst_pad_set_setcaps_function (flacenc->sinkpad, gst_flac_enc_sink_setcaps);
300 gst_pad_new_from_template (gst_element_class_get_pad_template (eclass,
302 gst_pad_use_fixed_caps (flacenc->srcpad);
303 gst_element_add_pad (GST_ELEMENT (flacenc), flacenc->srcpad);
305 flacenc->encoder = FLAC__seekable_stream_encoder_new ();
308 flacenc->samples_written = 0;
309 gst_flac_enc_update_quality (flacenc, DEFAULT_QUALITY);
310 flacenc->tags = gst_tag_list_new ();
314 gst_flac_enc_finalize (GObject * object)
316 GstFlacEnc *flacenc = GST_FLAC_ENC (object);
318 gst_tag_list_free (flacenc->tags);
319 FLAC__seekable_stream_encoder_delete (flacenc->encoder);
321 G_OBJECT_CLASS (parent_class)->finalize (object);
325 add_one_tag (const GstTagList * list, const gchar * tag, gpointer user_data)
329 GstFlacEnc *flacenc = GST_FLAC_ENC (user_data);
331 comments = gst_tag_to_vorbis_comments (list, tag);
332 for (it = comments; it != NULL; it = it->next) {
333 FLAC__StreamMetadata_VorbisComment_Entry commment_entry;
335 commment_entry.length = strlen (it->data);
336 commment_entry.entry = it->data;
337 FLAC__metadata_object_vorbiscomment_insert_comment (flacenc->meta[0],
338 flacenc->meta[0]->data.vorbis_comment.num_comments,
339 commment_entry, TRUE);
342 g_list_free (comments);
346 gst_flac_enc_set_metadata (GstFlacEnc * flacenc)
348 const GstTagList *user_tags;
351 g_return_if_fail (flacenc != NULL);
352 user_tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (flacenc));
353 if ((flacenc->tags == NULL) && (user_tags == NULL)) {
356 copy = gst_tag_list_merge (user_tags, flacenc->tags,
357 gst_tag_setter_get_tag_merge_mode (GST_TAG_SETTER (flacenc)));
358 flacenc->meta = g_malloc (sizeof (FLAC__StreamMetadata **));
361 FLAC__metadata_object_new (FLAC__METADATA_TYPE_VORBIS_COMMENT);
362 gst_tag_list_foreach (copy, add_one_tag, flacenc);
364 if (FLAC__seekable_stream_encoder_set_metadata (flacenc->encoder,
365 flacenc->meta, 1) != true)
366 g_warning ("Dude, i'm already initialized!");
367 gst_tag_list_free (copy);
371 gst_flac_enc_sink_setcaps (GstPad * pad, GstCaps * caps)
374 GstStructure *structure;
375 FLAC__SeekableStreamEncoderState state;
376 gint depth, chans, rate, width;
378 flacenc = GST_FLAC_ENC (gst_pad_get_parent (pad));
380 if (FLAC__seekable_stream_encoder_get_state (flacenc->encoder) !=
381 FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
382 goto encoder_already_initialized;
384 structure = gst_caps_get_structure (caps, 0);
386 if (!gst_structure_get_int (structure, "channels", &chans) ||
387 !gst_structure_get_int (structure, "width", &width) ||
388 !gst_structure_get_int (structure, "depth", &depth) ||
389 !gst_structure_get_int (structure, "rate", &rate)) {
390 GST_DEBUG_OBJECT (flacenc, "incomplete caps: %" GST_PTR_FORMAT, caps);
394 flacenc->channels = chans;
395 flacenc->depth = depth;
396 flacenc->sample_rate = rate;
398 caps = gst_caps_new_simple ("audio/x-flac",
399 "channels", G_TYPE_INT, flacenc->channels,
400 "rate", G_TYPE_INT, flacenc->sample_rate, NULL);
402 if (!gst_pad_set_caps (flacenc->srcpad, caps))
403 goto setting_src_caps_failed;
405 gst_caps_unref (caps);
407 FLAC__seekable_stream_encoder_set_bits_per_sample (flacenc->encoder,
409 FLAC__seekable_stream_encoder_set_sample_rate (flacenc->encoder,
410 flacenc->sample_rate);
411 FLAC__seekable_stream_encoder_set_channels (flacenc->encoder,
414 FLAC__seekable_stream_encoder_set_write_callback (flacenc->encoder,
415 gst_flac_enc_write_callback);
416 FLAC__seekable_stream_encoder_set_seek_callback (flacenc->encoder,
417 gst_flac_enc_seek_callback);
418 FLAC__seekable_stream_encoder_set_tell_callback (flacenc->encoder,
419 gst_flac_enc_tell_callback);
421 FLAC__seekable_stream_encoder_set_client_data (flacenc->encoder, flacenc);
423 gst_flac_enc_set_metadata (flacenc);
425 state = FLAC__seekable_stream_encoder_init (flacenc->encoder);
426 if (state != FLAC__STREAM_ENCODER_OK)
427 goto failed_to_initialize;
429 gst_object_unref (flacenc);
433 encoder_already_initialized:
435 g_warning ("flac already initialized -- fixme allow this");
436 gst_object_unref (flacenc);
439 setting_src_caps_failed:
441 GST_DEBUG_OBJECT (flacenc,
442 "Couldn't set caps on source pad: %" GST_PTR_FORMAT, caps);
443 gst_caps_unref (caps);
444 gst_object_unref (flacenc);
447 failed_to_initialize:
449 GST_ELEMENT_ERROR (flacenc, LIBRARY, INIT, (NULL),
450 ("could not initialize encoder (wrong parameters?)"));
451 gst_object_unref (flacenc);
457 gst_flac_enc_update_quality (GstFlacEnc * flacenc, gint quality)
459 flacenc->quality = quality;
461 #define DO_UPDATE(name, val, str) \
463 if (FLAC__seekable_stream_encoder_get_##name (flacenc->encoder) != \
464 flacenc_params[quality].val) { \
465 FLAC__seekable_stream_encoder_set_##name (flacenc->encoder, \
466 flacenc_params[quality].val); \
467 g_object_notify (G_OBJECT (flacenc), str); \
471 g_object_freeze_notify (G_OBJECT (flacenc));
473 if (flacenc->channels == 2) {
474 DO_UPDATE (do_mid_side_stereo, mid_side, "mid_side_stereo");
475 DO_UPDATE (loose_mid_side_stereo, loose_mid_side, "loose_mid_side");
478 DO_UPDATE (blocksize, blocksize, "blocksize");
479 DO_UPDATE (max_lpc_order, max_lpc_order, "max_lpc_order");
480 DO_UPDATE (qlp_coeff_precision, qlp_coeff_precision, "qlp_coeff_precision");
481 DO_UPDATE (do_qlp_coeff_prec_search, qlp_coeff_prec_search,
482 "qlp_coeff_prec_search");
483 DO_UPDATE (do_escape_coding, escape_coding, "escape_coding");
484 DO_UPDATE (do_exhaustive_model_search, exhaustive_model_search,
485 "exhaustive_model_search");
486 DO_UPDATE (min_residual_partition_order, min_residual_partition_order,
487 "min_residual_partition_order");
488 DO_UPDATE (max_residual_partition_order, max_residual_partition_order,
489 "max_residual_partition_order");
490 DO_UPDATE (rice_parameter_search_dist, rice_parameter_search_dist,
491 "rice_parameter_search_dist");
495 g_object_thaw_notify (G_OBJECT (flacenc));
500 static FLAC__SeekableStreamEncoderSeekStatus
501 gst_flac_enc_seek_callback (const FLAC__SeekableStreamEncoder * encoder,
502 FLAC__uint64 absolute_byte_offset, void *client_data)
508 flacenc = GST_FLAC_ENC (client_data);
510 if (flacenc->stopped)
511 return FLAC__SEEKABLE_STREAM_ENCODER_SEEK_STATUS_OK;
513 event = gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_BYTES,
514 absolute_byte_offset, GST_BUFFER_OFFSET_NONE, 0);
516 if ((peerpad = gst_pad_get_peer (flacenc->srcpad))) {
517 gboolean ret = gst_pad_send_event (peerpad, event);
519 gst_object_unref (peerpad);
522 GST_DEBUG ("Seek to %" G_GUINT64_FORMAT " %s", absolute_byte_offset,
525 GST_DEBUG ("Seek to %" G_GUINT64_FORMAT " %s", absolute_byte_offset,
529 GST_DEBUG ("Seek to %" G_GUINT64_FORMAT " failed (no peer pad)",
530 absolute_byte_offset);
533 flacenc->offset = absolute_byte_offset;
535 return FLAC__SEEKABLE_STREAM_ENCODER_SEEK_STATUS_OK;
538 static FLAC__StreamEncoderWriteStatus
539 gst_flac_enc_write_callback (const FLAC__SeekableStreamEncoder * encoder,
540 const FLAC__byte buffer[], unsigned bytes,
541 unsigned samples, unsigned current_frame, void *client_data)
547 flacenc = GST_FLAC_ENC (client_data);
549 if (flacenc->stopped)
550 return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
552 if (gst_pad_alloc_buffer_and_set_caps (flacenc->srcpad, flacenc->offset,
553 bytes, GST_PAD_CAPS (flacenc->srcpad), &outbuf) != GST_FLOW_OK) {
554 return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
557 memcpy (GST_BUFFER_DATA (outbuf), buffer, bytes);
559 if (samples > 0 && flacenc->samples_written != (guint64) - 1) {
560 GST_BUFFER_TIMESTAMP (outbuf) =
561 GST_FRAMES_TO_CLOCK_TIME (flacenc->samples_written,
562 flacenc->sample_rate);
563 GST_BUFFER_DURATION (outbuf) =
564 GST_FRAMES_TO_CLOCK_TIME (samples, flacenc->sample_rate);
565 /* offset_end = granulepos for ogg muxer */
566 GST_BUFFER_OFFSET_END (outbuf) = flacenc->samples_written + samples;
568 GST_BUFFER_TIMESTAMP (outbuf) = GST_CLOCK_TIME_NONE;
569 GST_BUFFER_DURATION (outbuf) = GST_CLOCK_TIME_NONE;
572 GST_DEBUG ("Pushing buffer: ts=%" GST_TIME_FORMAT ", samples=%u, size=%u, "
573 "pos=%" G_GUINT64_FORMAT, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)),
574 samples, bytes, flacenc->offset);
576 ret = gst_pad_push (flacenc->srcpad, outbuf);
578 flacenc->offset += bytes;
579 flacenc->samples_written += samples;
581 if (ret != GST_FLOW_OK && GST_FLOW_IS_FATAL (ret))
582 return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
584 return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
587 static FLAC__SeekableStreamEncoderTellStatus
588 gst_flac_enc_tell_callback (const FLAC__SeekableStreamEncoder * encoder,
589 FLAC__uint64 * absolute_byte_offset, void *client_data)
591 GstFlacEnc *flacenc = GST_FLAC_ENC (client_data);
593 *absolute_byte_offset = flacenc->offset;
595 return FLAC__SEEKABLE_STREAM_ENCODER_TELL_STATUS_OK;
599 gst_flac_enc_sink_event (GstPad * pad, GstEvent * event)
605 flacenc = GST_FLAC_ENC (gst_pad_get_parent (pad));
607 GST_DEBUG ("Received %s event on sinkpad", GST_EVENT_TYPE_NAME (event));
609 switch (GST_EVENT_TYPE (event)) {
610 case GST_EVENT_NEWSEGMENT:{
612 gint64 start, stream_time;
614 if (flacenc->offset == 0) {
615 gst_event_parse_new_segment (event, NULL, NULL, &format, &start, NULL,
621 if (flacenc->offset > 0)
622 GST_DEBUG ("Not handling mid-stream newsegment event");
624 GST_DEBUG ("Not handling newsegment event with non-zero start");
626 GstEvent *e = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES,
629 ret = gst_pad_push_event (flacenc->srcpad, e);
631 if (stream_time != 0) {
632 GST_DEBUG ("Not handling non-zero stream time");
634 gst_event_unref (event);
635 /* don't push it downstream, we'll generate our own via seek to 0 */
639 FLAC__seekable_stream_encoder_finish (flacenc->encoder);
640 ret = gst_pad_event_default (pad, event);
644 gst_event_parse_tag (event, &taglist);
645 gst_tag_list_insert (flacenc->tags, taglist, GST_TAG_MERGE_REPLACE);
647 g_assert_not_reached ();
649 ret = gst_pad_event_default (pad, event);
652 ret = gst_pad_event_default (pad, event);
656 gst_object_unref (flacenc);
662 gst_flac_enc_chain (GstPad * pad, GstBuffer * buffer)
671 flacenc = GST_FLAC_ENC (GST_PAD_PARENT (pad));
673 /* make sure setcaps has been called and the encoder is setup */
674 if (G_UNLIKELY (flacenc->depth == 0))
675 return GST_FLOW_NOT_NEGOTIATED;
677 depth = flacenc->depth;
679 insize = GST_BUFFER_SIZE (buffer);
680 samples = insize / ((depth + 7) >> 3);
682 data = g_malloc (samples * sizeof (FLAC__int32));
685 gint8 *indata = (gint8 *) GST_BUFFER_DATA (buffer);
687 for (i = 0; i < samples; i++)
688 data[i] = (FLAC__int32) indata[i];
689 } else if (depth == 16) {
690 gint16 *indata = (gint16 *) GST_BUFFER_DATA (buffer);
692 for (i = 0; i < samples; i++)
693 data[i] = (FLAC__int32) indata[i];
695 g_assert_not_reached ();
698 gst_buffer_unref (buffer);
700 res = FLAC__seekable_stream_encoder_process_interleaved (flacenc->encoder,
701 (const FLAC__int32 *) data, samples / flacenc->channels);
708 return GST_FLOW_ERROR;
712 gst_flac_enc_set_property (GObject * object, guint prop_id,
713 const GValue * value, GParamSpec * pspec)
715 GstFlacEnc *this = GST_FLAC_ENC (object);
717 GST_OBJECT_LOCK (this);
721 gst_flac_enc_update_quality (this, g_value_get_enum (value));
723 case PROP_STREAMABLE_SUBSET:
724 FLAC__seekable_stream_encoder_set_streamable_subset (this->encoder,
725 g_value_get_boolean (value));
727 case PROP_MID_SIDE_STEREO:
728 FLAC__seekable_stream_encoder_set_do_mid_side_stereo (this->encoder,
729 g_value_get_boolean (value));
731 case PROP_LOOSE_MID_SIDE_STEREO:
732 FLAC__seekable_stream_encoder_set_loose_mid_side_stereo (this->encoder,
733 g_value_get_boolean (value));
736 FLAC__seekable_stream_encoder_set_blocksize (this->encoder,
737 g_value_get_uint (value));
739 case PROP_MAX_LPC_ORDER:
740 FLAC__seekable_stream_encoder_set_max_lpc_order (this->encoder,
741 g_value_get_uint (value));
743 case PROP_QLP_COEFF_PRECISION:
744 FLAC__seekable_stream_encoder_set_qlp_coeff_precision (this->encoder,
745 g_value_get_uint (value));
747 case PROP_QLP_COEFF_PREC_SEARCH:
748 FLAC__seekable_stream_encoder_set_do_qlp_coeff_prec_search (this->encoder,
749 g_value_get_boolean (value));
751 case PROP_ESCAPE_CODING:
752 FLAC__seekable_stream_encoder_set_do_escape_coding (this->encoder,
753 g_value_get_boolean (value));
755 case PROP_EXHAUSTIVE_MODEL_SEARCH:
756 FLAC__seekable_stream_encoder_set_do_exhaustive_model_search (this->
757 encoder, g_value_get_boolean (value));
759 case PROP_MIN_RESIDUAL_PARTITION_ORDER:
760 FLAC__seekable_stream_encoder_set_min_residual_partition_order (this->
761 encoder, g_value_get_uint (value));
763 case PROP_MAX_RESIDUAL_PARTITION_ORDER:
764 FLAC__seekable_stream_encoder_set_max_residual_partition_order (this->
765 encoder, g_value_get_uint (value));
767 case PROP_RICE_PARAMETER_SEARCH_DIST:
768 FLAC__seekable_stream_encoder_set_rice_parameter_search_dist (this->
769 encoder, g_value_get_uint (value));
772 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
776 GST_OBJECT_UNLOCK (this);
780 gst_flac_enc_get_property (GObject * object, guint prop_id,
781 GValue * value, GParamSpec * pspec)
783 GstFlacEnc *this = GST_FLAC_ENC (object);
785 GST_OBJECT_LOCK (this);
789 g_value_set_enum (value, this->quality);
791 case PROP_STREAMABLE_SUBSET:
792 g_value_set_boolean (value,
793 FLAC__seekable_stream_encoder_get_streamable_subset (this->encoder));
795 case PROP_MID_SIDE_STEREO:
796 g_value_set_boolean (value,
797 FLAC__seekable_stream_encoder_get_do_mid_side_stereo (this->encoder));
799 case PROP_LOOSE_MID_SIDE_STEREO:
800 g_value_set_boolean (value,
801 FLAC__seekable_stream_encoder_get_loose_mid_side_stereo (this->
805 g_value_set_uint (value,
806 FLAC__seekable_stream_encoder_get_blocksize (this->encoder));
808 case PROP_MAX_LPC_ORDER:
809 g_value_set_uint (value,
810 FLAC__seekable_stream_encoder_get_max_lpc_order (this->encoder));
812 case PROP_QLP_COEFF_PRECISION:
813 g_value_set_uint (value,
814 FLAC__seekable_stream_encoder_get_qlp_coeff_precision (this->
817 case PROP_QLP_COEFF_PREC_SEARCH:
818 g_value_set_boolean (value,
819 FLAC__seekable_stream_encoder_get_do_qlp_coeff_prec_search (this->
822 case PROP_ESCAPE_CODING:
823 g_value_set_boolean (value,
824 FLAC__seekable_stream_encoder_get_do_escape_coding (this->encoder));
826 case PROP_EXHAUSTIVE_MODEL_SEARCH:
827 g_value_set_boolean (value,
828 FLAC__seekable_stream_encoder_get_do_exhaustive_model_search (this->
831 case PROP_MIN_RESIDUAL_PARTITION_ORDER:
832 g_value_set_uint (value,
833 FLAC__seekable_stream_encoder_get_min_residual_partition_order (this->
836 case PROP_MAX_RESIDUAL_PARTITION_ORDER:
837 g_value_set_uint (value,
838 FLAC__seekable_stream_encoder_get_max_residual_partition_order (this->
841 case PROP_RICE_PARAMETER_SEARCH_DIST:
842 g_value_set_uint (value,
843 FLAC__seekable_stream_encoder_get_rice_parameter_search_dist (this->
847 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
851 GST_OBJECT_UNLOCK (this);
854 static GstStateChangeReturn
855 gst_flac_enc_change_state (GstElement * element, GstStateChange transition)
857 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
858 GstFlacEnc *flacenc = GST_FLAC_ENC (element);
860 switch (transition) {
861 case GST_STATE_CHANGE_NULL_TO_READY:
862 case GST_STATE_CHANGE_READY_TO_PAUSED:
863 flacenc->stopped = FALSE;
865 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
870 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
872 switch (transition) {
873 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
875 case GST_STATE_CHANGE_PAUSED_TO_READY:
876 if (FLAC__seekable_stream_encoder_get_state (flacenc->encoder) !=
877 FLAC__STREAM_ENCODER_UNINITIALIZED) {
878 flacenc->stopped = TRUE;
879 FLAC__seekable_stream_encoder_finish (flacenc->encoder);
882 flacenc->samples_written = 0;
884 FLAC__metadata_object_delete (flacenc->meta[0]);
885 g_free (flacenc->meta);
886 flacenc->meta = NULL;
889 case GST_STATE_CHANGE_READY_TO_NULL: