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 FLAC__seekable_stream_encoder_delete (flacenc->encoder);
320 G_OBJECT_CLASS (parent_class)->finalize (object);
324 add_one_tag (const GstTagList * list, const gchar * tag, gpointer user_data)
328 GstFlacEnc *flacenc = GST_FLAC_ENC (user_data);
330 comments = gst_tag_to_vorbis_comments (list, tag);
331 for (it = comments; it != NULL; it = it->next) {
332 FLAC__StreamMetadata_VorbisComment_Entry commment_entry;
334 commment_entry.length = strlen (it->data);
335 commment_entry.entry = it->data;
336 FLAC__metadata_object_vorbiscomment_insert_comment (flacenc->meta[0],
337 flacenc->meta[0]->data.vorbis_comment.num_comments,
338 commment_entry, TRUE);
341 g_list_free (comments);
345 gst_flac_enc_set_metadata (GstFlacEnc * flacenc)
347 const GstTagList *user_tags;
350 g_return_if_fail (flacenc != NULL);
351 user_tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (flacenc));
352 if ((flacenc->tags == NULL) && (user_tags == NULL)) {
355 copy = gst_tag_list_merge (user_tags, flacenc->tags,
356 gst_tag_setter_get_tag_merge_mode (GST_TAG_SETTER (flacenc)));
357 flacenc->meta = g_malloc (sizeof (FLAC__StreamMetadata **));
360 FLAC__metadata_object_new (FLAC__METADATA_TYPE_VORBIS_COMMENT);
361 gst_tag_list_foreach (copy, add_one_tag, flacenc);
363 if (FLAC__seekable_stream_encoder_set_metadata (flacenc->encoder,
364 flacenc->meta, 1) != true)
365 g_warning ("Dude, i'm already initialized!");
366 gst_tag_list_free (copy);
370 gst_flac_enc_sink_setcaps (GstPad * pad, GstCaps * caps)
373 GstStructure *structure;
374 FLAC__SeekableStreamEncoderState state;
376 /* takes a ref on flacenc */
377 flacenc = GST_FLAC_ENC (gst_pad_get_parent (pad));
379 if (FLAC__seekable_stream_encoder_get_state (flacenc->encoder) !=
380 FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
381 goto encoder_already_initialized;
383 structure = gst_caps_get_structure (caps, 0);
385 if (!gst_structure_get_int (structure, "channels", &flacenc->channels)
386 || !gst_structure_get_int (structure, "depth", &flacenc->depth)
387 || !gst_structure_get_int (structure, "rate", &flacenc->sample_rate))
388 /* we got caps incompatible with the template? */
389 g_return_val_if_reached (FALSE);
391 caps = gst_caps_new_simple ("audio/x-flac",
392 "channels", G_TYPE_INT, flacenc->channels,
393 "rate", G_TYPE_INT, flacenc->sample_rate, NULL);
395 if (!gst_pad_set_caps (flacenc->srcpad, caps))
396 goto setting_src_caps_failed;
398 gst_caps_unref (caps);
400 FLAC__seekable_stream_encoder_set_bits_per_sample (flacenc->encoder,
402 FLAC__seekable_stream_encoder_set_sample_rate (flacenc->encoder,
403 flacenc->sample_rate);
404 FLAC__seekable_stream_encoder_set_channels (flacenc->encoder,
407 FLAC__seekable_stream_encoder_set_write_callback (flacenc->encoder,
408 gst_flac_enc_write_callback);
409 FLAC__seekable_stream_encoder_set_seek_callback (flacenc->encoder,
410 gst_flac_enc_seek_callback);
411 FLAC__seekable_stream_encoder_set_tell_callback (flacenc->encoder,
412 gst_flac_enc_tell_callback);
414 FLAC__seekable_stream_encoder_set_client_data (flacenc->encoder, flacenc);
416 gst_flac_enc_set_metadata (flacenc);
418 state = FLAC__seekable_stream_encoder_init (flacenc->encoder);
419 if (state != FLAC__STREAM_ENCODER_OK)
420 goto failed_to_initialize;
422 gst_object_unref (flacenc);
426 encoder_already_initialized:
428 g_warning ("flac already initialized -- fixme allow this");
429 gst_object_unref (flacenc);
432 setting_src_caps_failed:
434 GST_DEBUG_OBJECT (flacenc,
435 "Couldn't set caps on source pad: %" GST_PTR_FORMAT, caps);
436 gst_caps_unref (caps);
437 gst_object_unref (flacenc);
440 failed_to_initialize:
442 GST_ELEMENT_ERROR (flacenc, LIBRARY, INIT, (NULL),
443 ("could not initialize encoder (wrong parameters?)"));
444 gst_object_unref (flacenc);
450 gst_flac_enc_update_quality (GstFlacEnc * flacenc, gint quality)
452 flacenc->quality = quality;
454 #define DO_UPDATE(name, val, str) \
456 if (FLAC__seekable_stream_encoder_get_##name (flacenc->encoder) != \
457 flacenc_params[quality].val) { \
458 FLAC__seekable_stream_encoder_set_##name (flacenc->encoder, \
459 flacenc_params[quality].val); \
460 g_object_notify (G_OBJECT (flacenc), str); \
464 g_object_freeze_notify (G_OBJECT (flacenc));
466 if (flacenc->channels == 2) {
467 DO_UPDATE (do_mid_side_stereo, mid_side, "mid_side_stereo");
468 DO_UPDATE (loose_mid_side_stereo, loose_mid_side, "loose_mid_side");
471 DO_UPDATE (blocksize, blocksize, "blocksize");
472 DO_UPDATE (max_lpc_order, max_lpc_order, "max_lpc_order");
473 DO_UPDATE (qlp_coeff_precision, qlp_coeff_precision, "qlp_coeff_precision");
474 DO_UPDATE (do_qlp_coeff_prec_search, qlp_coeff_prec_search,
475 "qlp_coeff_prec_search");
476 DO_UPDATE (do_escape_coding, escape_coding, "escape_coding");
477 DO_UPDATE (do_exhaustive_model_search, exhaustive_model_search,
478 "exhaustive_model_search");
479 DO_UPDATE (min_residual_partition_order, min_residual_partition_order,
480 "min_residual_partition_order");
481 DO_UPDATE (max_residual_partition_order, max_residual_partition_order,
482 "max_residual_partition_order");
483 DO_UPDATE (rice_parameter_search_dist, rice_parameter_search_dist,
484 "rice_parameter_search_dist");
488 g_object_thaw_notify (G_OBJECT (flacenc));
493 static FLAC__SeekableStreamEncoderSeekStatus
494 gst_flac_enc_seek_callback (const FLAC__SeekableStreamEncoder * encoder,
495 FLAC__uint64 absolute_byte_offset, void *client_data)
501 flacenc = GST_FLAC_ENC (client_data);
503 if (flacenc->stopped)
504 return FLAC__STREAM_ENCODER_OK;
506 event = gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_BYTES,
507 absolute_byte_offset, GST_BUFFER_OFFSET_NONE, 0);
509 if ((peerpad = gst_pad_get_peer (flacenc->srcpad))) {
510 gboolean ret = gst_pad_send_event (peerpad, event);
512 gst_object_unref (peerpad);
515 GST_DEBUG ("Seek to %" G_GUINT64_FORMAT " %s", absolute_byte_offset,
518 GST_DEBUG ("Seek to %" G_GUINT64_FORMAT " %s", absolute_byte_offset,
522 GST_DEBUG ("Seek to %" G_GUINT64_FORMAT " failed (no peer pad)",
523 absolute_byte_offset);
526 flacenc->offset = absolute_byte_offset;
528 return FLAC__STREAM_ENCODER_OK;
531 static FLAC__StreamEncoderWriteStatus
532 gst_flac_enc_write_callback (const FLAC__SeekableStreamEncoder * encoder,
533 const FLAC__byte buffer[], unsigned bytes,
534 unsigned samples, unsigned current_frame, void *client_data)
540 flacenc = GST_FLAC_ENC (client_data);
542 if (flacenc->stopped)
543 return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
545 if (gst_pad_alloc_buffer_and_set_caps (flacenc->srcpad, flacenc->offset,
546 bytes, GST_PAD_CAPS (flacenc->srcpad), &outbuf) != GST_FLOW_OK) {
547 return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
550 memcpy (GST_BUFFER_DATA (outbuf), buffer, bytes);
552 if (samples > 0 && flacenc->samples_written != (guint64) - 1) {
553 GST_BUFFER_TIMESTAMP (outbuf) =
554 GST_FRAMES_TO_CLOCK_TIME (flacenc->samples_written,
555 flacenc->sample_rate);
556 GST_BUFFER_DURATION (outbuf) =
557 GST_FRAMES_TO_CLOCK_TIME (samples, flacenc->sample_rate);
558 /* offset_end = granulepos for ogg muxer */
559 GST_BUFFER_OFFSET_END (outbuf) = flacenc->samples_written + samples;
561 GST_BUFFER_TIMESTAMP (outbuf) = GST_CLOCK_TIME_NONE;
562 GST_BUFFER_DURATION (outbuf) = GST_CLOCK_TIME_NONE;
565 GST_DEBUG ("Pushing buffer: ts=%" GST_TIME_FORMAT ", samples=%u, size=%u, "
566 "pos=%" G_GUINT64_FORMAT, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)),
567 samples, bytes, flacenc->offset);
569 ret = gst_pad_push (flacenc->srcpad, outbuf);
571 flacenc->offset += bytes;
572 flacenc->samples_written += samples;
574 if (ret != GST_FLOW_OK && GST_FLOW_IS_FATAL (ret))
575 return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
577 return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
580 static FLAC__SeekableStreamEncoderTellStatus
581 gst_flac_enc_tell_callback (const FLAC__SeekableStreamEncoder * encoder,
582 FLAC__uint64 * absolute_byte_offset, void *client_data)
584 GstFlacEnc *flacenc = GST_FLAC_ENC (client_data);
586 *absolute_byte_offset = flacenc->offset;
588 return FLAC__STREAM_ENCODER_OK;
592 gst_flac_enc_sink_event (GstPad * pad, GstEvent * event)
598 flacenc = GST_FLAC_ENC (gst_pad_get_parent (pad));
600 GST_DEBUG ("Received %s event on sinkpad", GST_EVENT_TYPE_NAME (event));
602 switch (GST_EVENT_TYPE (event)) {
603 case GST_EVENT_NEWSEGMENT:{
605 gint64 start, stream_time;
607 if (flacenc->offset == 0) {
608 gst_event_parse_new_segment (event, NULL, NULL, &format, &start, NULL,
614 if (flacenc->offset > 0)
615 GST_DEBUG ("Not handling mid-stream newsegment event");
617 GST_DEBUG ("Not handling newsegment event with non-zero start");
619 GstEvent *e = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES,
622 ret = gst_pad_push_event (flacenc->srcpad, e);
624 if (stream_time != 0) {
625 GST_DEBUG ("Not handling non-zero stream time");
627 gst_event_unref (event);
628 /* don't push it downstream, we'll generate our own via seek to 0 */
632 FLAC__seekable_stream_encoder_finish (flacenc->encoder);
633 ret = gst_pad_event_default (pad, event);
637 gst_event_parse_tag (event, &taglist);
638 gst_tag_list_insert (flacenc->tags, taglist, GST_TAG_MERGE_REPLACE);
640 g_assert_not_reached ();
642 ret = gst_pad_event_default (pad, event);
645 ret = gst_pad_event_default (pad, event);
649 gst_object_unref (flacenc);
655 gst_flac_enc_chain (GstPad * pad, GstBuffer * buffer)
664 flacenc = GST_FLAC_ENC (gst_pad_get_parent (pad));
666 depth = flacenc->depth;
668 insize = GST_BUFFER_SIZE (buffer);
669 samples = insize / ((depth + 7) >> 3);
671 data = g_malloc (samples * sizeof (FLAC__int32));
674 gint8 *indata = (gint8 *) GST_BUFFER_DATA (buffer);
676 for (i = 0; i < samples; i++)
677 data[i] = (FLAC__int32) indata[i];
678 } else if (depth == 16) {
679 gint16 *indata = (gint16 *) GST_BUFFER_DATA (buffer);
681 for (i = 0; i < samples; i++)
682 data[i] = (FLAC__int32) indata[i];
684 g_assert_not_reached ();
687 gst_buffer_unref (buffer);
689 res = FLAC__seekable_stream_encoder_process_interleaved (flacenc->encoder,
690 (const FLAC__int32 *) data, samples / flacenc->channels);
694 gst_object_unref (flacenc);
699 return GST_FLOW_ERROR;
703 gst_flac_enc_set_property (GObject * object, guint prop_id,
704 const GValue * value, GParamSpec * pspec)
706 GstFlacEnc *this = GST_FLAC_ENC (object);
708 GST_OBJECT_LOCK (this);
712 gst_flac_enc_update_quality (this, g_value_get_enum (value));
714 case PROP_STREAMABLE_SUBSET:
715 FLAC__seekable_stream_encoder_set_streamable_subset (this->encoder,
716 g_value_get_boolean (value));
718 case PROP_MID_SIDE_STEREO:
719 FLAC__seekable_stream_encoder_set_do_mid_side_stereo (this->encoder,
720 g_value_get_boolean (value));
722 case PROP_LOOSE_MID_SIDE_STEREO:
723 FLAC__seekable_stream_encoder_set_loose_mid_side_stereo (this->encoder,
724 g_value_get_boolean (value));
727 FLAC__seekable_stream_encoder_set_blocksize (this->encoder,
728 g_value_get_uint (value));
730 case PROP_MAX_LPC_ORDER:
731 FLAC__seekable_stream_encoder_set_max_lpc_order (this->encoder,
732 g_value_get_uint (value));
734 case PROP_QLP_COEFF_PRECISION:
735 FLAC__seekable_stream_encoder_set_qlp_coeff_precision (this->encoder,
736 g_value_get_uint (value));
738 case PROP_QLP_COEFF_PREC_SEARCH:
739 FLAC__seekable_stream_encoder_set_do_qlp_coeff_prec_search (this->encoder,
740 g_value_get_boolean (value));
742 case PROP_ESCAPE_CODING:
743 FLAC__seekable_stream_encoder_set_do_escape_coding (this->encoder,
744 g_value_get_boolean (value));
746 case PROP_EXHAUSTIVE_MODEL_SEARCH:
747 FLAC__seekable_stream_encoder_set_do_exhaustive_model_search (this->
748 encoder, g_value_get_boolean (value));
750 case PROP_MIN_RESIDUAL_PARTITION_ORDER:
751 FLAC__seekable_stream_encoder_set_min_residual_partition_order (this->
752 encoder, g_value_get_uint (value));
754 case PROP_MAX_RESIDUAL_PARTITION_ORDER:
755 FLAC__seekable_stream_encoder_set_max_residual_partition_order (this->
756 encoder, g_value_get_uint (value));
758 case PROP_RICE_PARAMETER_SEARCH_DIST:
759 FLAC__seekable_stream_encoder_set_rice_parameter_search_dist (this->
760 encoder, g_value_get_uint (value));
763 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
767 GST_OBJECT_UNLOCK (this);
771 gst_flac_enc_get_property (GObject * object, guint prop_id,
772 GValue * value, GParamSpec * pspec)
774 GstFlacEnc *this = GST_FLAC_ENC (object);
776 GST_OBJECT_LOCK (this);
780 g_value_set_enum (value, this->quality);
782 case PROP_STREAMABLE_SUBSET:
783 g_value_set_boolean (value,
784 FLAC__seekable_stream_encoder_get_streamable_subset (this->encoder));
786 case PROP_MID_SIDE_STEREO:
787 g_value_set_boolean (value,
788 FLAC__seekable_stream_encoder_get_do_mid_side_stereo (this->encoder));
790 case PROP_LOOSE_MID_SIDE_STEREO:
791 g_value_set_boolean (value,
792 FLAC__seekable_stream_encoder_get_loose_mid_side_stereo (this->
796 g_value_set_uint (value,
797 FLAC__seekable_stream_encoder_get_blocksize (this->encoder));
799 case PROP_MAX_LPC_ORDER:
800 g_value_set_uint (value,
801 FLAC__seekable_stream_encoder_get_max_lpc_order (this->encoder));
803 case PROP_QLP_COEFF_PRECISION:
804 g_value_set_uint (value,
805 FLAC__seekable_stream_encoder_get_qlp_coeff_precision (this->
808 case PROP_QLP_COEFF_PREC_SEARCH:
809 g_value_set_boolean (value,
810 FLAC__seekable_stream_encoder_get_do_qlp_coeff_prec_search (this->
813 case PROP_ESCAPE_CODING:
814 g_value_set_boolean (value,
815 FLAC__seekable_stream_encoder_get_do_escape_coding (this->encoder));
817 case PROP_EXHAUSTIVE_MODEL_SEARCH:
818 g_value_set_boolean (value,
819 FLAC__seekable_stream_encoder_get_do_exhaustive_model_search (this->
822 case PROP_MIN_RESIDUAL_PARTITION_ORDER:
823 g_value_set_uint (value,
824 FLAC__seekable_stream_encoder_get_min_residual_partition_order (this->
827 case PROP_MAX_RESIDUAL_PARTITION_ORDER:
828 g_value_set_uint (value,
829 FLAC__seekable_stream_encoder_get_max_residual_partition_order (this->
832 case PROP_RICE_PARAMETER_SEARCH_DIST:
833 g_value_set_uint (value,
834 FLAC__seekable_stream_encoder_get_rice_parameter_search_dist (this->
838 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
842 GST_OBJECT_UNLOCK (this);
845 static GstStateChangeReturn
846 gst_flac_enc_change_state (GstElement * element, GstStateChange transition)
848 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
849 GstFlacEnc *flacenc = GST_FLAC_ENC (element);
851 switch (transition) {
852 case GST_STATE_CHANGE_NULL_TO_READY:
853 case GST_STATE_CHANGE_READY_TO_PAUSED:
854 flacenc->stopped = FALSE;
856 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
861 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
863 switch (transition) {
864 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
866 case GST_STATE_CHANGE_PAUSED_TO_READY:
867 if (FLAC__seekable_stream_encoder_get_state (flacenc->encoder) !=
868 FLAC__STREAM_ENCODER_UNINITIALIZED) {
869 flacenc->stopped = TRUE;
870 FLAC__seekable_stream_encoder_finish (flacenc->encoder);
873 flacenc->samples_written = 0;
875 FLAC__metadata_object_delete (flacenc->meta[0]);
876 g_free (flacenc->meta);
877 flacenc->meta = NULL;
880 case GST_STATE_CHANGE_READY_TO_NULL: