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.
20 * SECTION:element-flacenc
21 * @see_also: #GstFlacDec
23 * flacenc encodes FLAC streams.
24 * <ulink url="http://flac.sourceforge.net/">FLAC</ulink>
25 * is a Free Lossless Audio Codec.
28 * <title>Example launch line</title>
30 * gst-launch audiotestsrc num-buffers=100 ! flacenc ! filesink location=beep.flac
35 /* TODO: - We currently don't handle discontinuities in the stream in a useful
36 * way and instead rely on the developer plugging in audiorate if
37 * the stream contains discontinuities.
46 #include <gstflacenc.h>
47 #include <gst/audio/audio.h>
48 #include <gst/audio/multichannel.h>
49 #include <gst/tag/tag.h>
50 #include <gst/gsttagsetter.h>
52 /* Taken from http://flac.sourceforge.net/format.html#frame_header */
53 static const GstAudioChannelPosition channel_positions[8][8] = {
54 {GST_AUDIO_CHANNEL_POSITION_FRONT_MONO},
55 {GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
56 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT}, {
57 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
58 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
59 GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER}, {
60 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
61 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
62 GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
63 GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT}, {
64 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
65 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
66 GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
67 GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
68 GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT}, {
69 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
70 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
71 GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
72 GST_AUDIO_CHANNEL_POSITION_LFE,
73 GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
74 GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT},
75 /* FIXME: 7/8 channel layouts are not defined in the FLAC specs */
77 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
78 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
79 GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
80 GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT,
81 GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
82 GST_AUDIO_CHANNEL_POSITION_LFE,
83 GST_AUDIO_CHANNEL_POSITION_REAR_CENTER}, {
84 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
85 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
86 GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
87 GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT,
88 GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
89 GST_AUDIO_CHANNEL_POSITION_LFE,
90 GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
91 GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT}
94 #define FLAC_SINK_CAPS \
96 "endianness = (int) BYTE_ORDER, " \
97 "signed = (boolean) TRUE, " \
100 "rate = (int) [ 1, 655350 ], " \
101 "channels = (int) [ 1, 8 ]; " \
102 "audio/x-raw-int, " \
103 "endianness = (int) BYTE_ORDER, " \
104 "signed = (boolean) TRUE, " \
105 "width = (int) 16, " \
106 "depth = (int) { 12, 16 }, " \
107 "rate = (int) [ 1, 655350 ], " \
108 "channels = (int) [ 1, 8 ]; " \
109 "audio/x-raw-int, " \
110 "endianness = (int) BYTE_ORDER, " \
111 "signed = (boolean) TRUE, " \
112 "width = (int) 32, " \
113 "depth = (int) { 20, 24 }, " \
114 "rate = (int) [ 1, 655350 ], " \
115 "channels = (int) [ 1, 8 ]"
117 static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
120 GST_STATIC_CAPS ("audio/x-flac")
123 static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
126 GST_STATIC_CAPS (FLAC_SINK_CAPS)
133 PROP_STREAMABLE_SUBSET,
134 PROP_MID_SIDE_STEREO,
135 PROP_LOOSE_MID_SIDE_STEREO,
138 PROP_QLP_COEFF_PRECISION,
139 PROP_QLP_COEFF_PREC_SEARCH,
141 PROP_EXHAUSTIVE_MODEL_SEARCH,
142 PROP_MIN_RESIDUAL_PARTITION_ORDER,
143 PROP_MAX_RESIDUAL_PARTITION_ORDER,
144 PROP_RICE_PARAMETER_SEARCH_DIST,
149 GST_DEBUG_CATEGORY_STATIC (flacenc_debug);
150 #define GST_CAT_DEFAULT flacenc_debug
153 #define _do_init(type) \
155 static const GInterfaceInfo tag_setter_info = { \
160 static const GInterfaceInfo preset_info = { \
165 g_type_add_interface_static (type, GST_TYPE_TAG_SETTER, \
167 g_type_add_interface_static (type, GST_TYPE_PRESET, \
171 GST_BOILERPLATE_FULL (GstFlacEnc, gst_flac_enc, GstElement, GST_TYPE_ELEMENT,
174 static void gst_flac_enc_finalize (GObject * object);
176 static gboolean gst_flac_enc_sink_setcaps (GstPad * pad, GstCaps * caps);
177 static GstCaps *gst_flac_enc_sink_getcaps (GstPad * pad);
178 static gboolean gst_flac_enc_sink_event (GstPad * pad, GstEvent * event);
179 static GstFlowReturn gst_flac_enc_chain (GstPad * pad, GstBuffer * buffer);
181 static gboolean gst_flac_enc_update_quality (GstFlacEnc * flacenc,
183 static void gst_flac_enc_set_property (GObject * object, guint prop_id,
184 const GValue * value, GParamSpec * pspec);
185 static void gst_flac_enc_get_property (GObject * object, guint prop_id,
186 GValue * value, GParamSpec * pspec);
187 static GstStateChangeReturn gst_flac_enc_change_state (GstElement * element,
188 GstStateChange transition);
190 static FLAC__StreamEncoderWriteStatus
191 gst_flac_enc_write_callback (const FLAC__StreamEncoder * encoder,
192 const FLAC__byte buffer[], size_t bytes,
193 unsigned samples, unsigned current_frame, void *client_data);
194 static FLAC__StreamEncoderSeekStatus
195 gst_flac_enc_seek_callback (const FLAC__StreamEncoder * encoder,
196 FLAC__uint64 absolute_byte_offset, void *client_data);
197 static FLAC__StreamEncoderTellStatus
198 gst_flac_enc_tell_callback (const FLAC__StreamEncoder * encoder,
199 FLAC__uint64 * absolute_byte_offset, void *client_data);
203 gboolean exhaustive_model_search;
204 gboolean escape_coding;
206 gboolean loose_mid_side;
207 guint qlp_coeff_precision;
208 gboolean qlp_coeff_prec_search;
209 guint min_residual_partition_order;
210 guint max_residual_partition_order;
211 guint rice_parameter_search_dist;
217 static const GstFlacEncParams flacenc_params[] = {
218 {FALSE, FALSE, FALSE, FALSE, 0, FALSE, 2, 2, 0, 0, 1152},
219 {FALSE, FALSE, TRUE, TRUE, 0, FALSE, 2, 2, 0, 0, 1152},
220 {FALSE, FALSE, TRUE, FALSE, 0, FALSE, 0, 3, 0, 0, 1152},
221 {FALSE, FALSE, FALSE, FALSE, 0, FALSE, 3, 3, 0, 6, 4608},
222 {FALSE, FALSE, TRUE, TRUE, 0, FALSE, 3, 3, 0, 8, 4608},
223 {FALSE, FALSE, TRUE, FALSE, 0, FALSE, 3, 3, 0, 8, 4608},
224 {FALSE, FALSE, TRUE, FALSE, 0, FALSE, 0, 4, 0, 8, 4608},
225 {TRUE, FALSE, TRUE, FALSE, 0, FALSE, 0, 6, 0, 8, 4608},
226 {TRUE, FALSE, TRUE, FALSE, 0, FALSE, 0, 6, 0, 12, 4608},
227 {TRUE, TRUE, TRUE, FALSE, 0, FALSE, 0, 16, 0, 32, 4608},
230 #define DEFAULT_QUALITY 5
231 #define DEFAULT_PADDING 0
232 #define DEFAULT_SEEKPOINTS 0
234 #define GST_TYPE_FLAC_ENC_QUALITY (gst_flac_enc_quality_get_type ())
236 gst_flac_enc_quality_get_type (void)
238 static GType qtype = 0;
241 static const GEnumValue values[] = {
242 {0, "0 - Fastest compression", "0"},
247 {5, "5 - Default", "5"},
250 {8, "8 - Highest compression", "8"},
251 {9, "9 - Insane", "9"},
255 qtype = g_enum_register_static ("GstFlacEncQuality", values);
261 gst_flac_enc_base_init (gpointer g_class)
263 GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
265 gst_element_class_add_pad_template (element_class,
266 gst_static_pad_template_get (&src_factory));
267 gst_element_class_add_pad_template (element_class,
268 gst_static_pad_template_get (&sink_factory));
270 gst_element_class_set_details_simple (element_class, "FLAC audio encoder",
271 "Codec/Encoder/Audio",
272 "Encodes audio with the FLAC lossless audio encoder",
273 "Wim Taymans <wim.taymans@chello.be>");
275 GST_DEBUG_CATEGORY_INIT (flacenc_debug, "flacenc", 0,
276 "Flac encoding element");
280 gst_flac_enc_class_init (GstFlacEncClass * klass)
282 GObjectClass *gobject_class;
283 GstElementClass *gstelement_class;
285 gobject_class = (GObjectClass *) klass;
286 gstelement_class = (GstElementClass *) klass;
288 gobject_class->set_property = gst_flac_enc_set_property;
289 gobject_class->get_property = gst_flac_enc_get_property;
290 gobject_class->finalize = gst_flac_enc_finalize;
292 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_QUALITY,
293 g_param_spec_enum ("quality",
295 "Speed versus compression tradeoff",
296 GST_TYPE_FLAC_ENC_QUALITY, DEFAULT_QUALITY,
297 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
298 g_object_class_install_property (G_OBJECT_CLASS (klass),
299 PROP_STREAMABLE_SUBSET, g_param_spec_boolean ("streamable-subset",
301 "true to limit encoder to generating a Subset stream, else false",
303 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
304 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MID_SIDE_STEREO,
305 g_param_spec_boolean ("mid-side-stereo", "Do mid side stereo",
306 "Do mid side stereo (only for stereo input)",
307 flacenc_params[DEFAULT_QUALITY].mid_side,
308 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
309 g_object_class_install_property (G_OBJECT_CLASS (klass),
310 PROP_LOOSE_MID_SIDE_STEREO, g_param_spec_boolean ("loose-mid-side-stereo",
311 "Loose mid side stereo", "Loose mid side stereo",
312 flacenc_params[DEFAULT_QUALITY].loose_mid_side,
313 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
314 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_BLOCKSIZE,
315 g_param_spec_uint ("blocksize", "Blocksize", "Blocksize in samples",
316 FLAC__MIN_BLOCK_SIZE, FLAC__MAX_BLOCK_SIZE,
317 flacenc_params[DEFAULT_QUALITY].blocksize,
318 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
319 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MAX_LPC_ORDER,
320 g_param_spec_uint ("max-lpc-order", "Max LPC order",
321 "Max LPC order; 0 => use only fixed predictors", 0,
322 FLAC__MAX_LPC_ORDER, flacenc_params[DEFAULT_QUALITY].max_lpc_order,
323 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
324 g_object_class_install_property (G_OBJECT_CLASS (klass),
325 PROP_QLP_COEFF_PRECISION, g_param_spec_uint ("qlp-coeff-precision",
326 "QLP coefficients precision",
327 "Precision in bits of quantized linear-predictor coefficients; 0 = automatic",
328 0, 32, flacenc_params[DEFAULT_QUALITY].qlp_coeff_precision,
329 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
330 g_object_class_install_property (G_OBJECT_CLASS (klass),
331 PROP_QLP_COEFF_PREC_SEARCH, g_param_spec_boolean ("qlp-coeff-prec-search",
332 "Do QLP coefficients precision search",
333 "false = use qlp_coeff_precision, "
334 "true = search around qlp_coeff_precision, take best",
335 flacenc_params[DEFAULT_QUALITY].qlp_coeff_prec_search,
336 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
337 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_ESCAPE_CODING,
338 g_param_spec_boolean ("escape-coding", "Do Escape coding",
339 "search for escape codes in the entropy coding stage "
340 "for slightly better compression",
341 flacenc_params[DEFAULT_QUALITY].escape_coding,
342 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
343 g_object_class_install_property (G_OBJECT_CLASS (klass),
344 PROP_EXHAUSTIVE_MODEL_SEARCH,
345 g_param_spec_boolean ("exhaustive-model-search",
346 "Do exhaustive model search",
347 "do exhaustive search of LP coefficient quantization (expensive!)",
348 flacenc_params[DEFAULT_QUALITY].exhaustive_model_search,
349 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
350 g_object_class_install_property (G_OBJECT_CLASS (klass),
351 PROP_MIN_RESIDUAL_PARTITION_ORDER,
352 g_param_spec_uint ("min-residual-partition-order",
353 "Min residual partition order",
354 "Min residual partition order (above 4 doesn't usually help much)", 0,
355 16, flacenc_params[DEFAULT_QUALITY].min_residual_partition_order,
356 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
357 g_object_class_install_property (G_OBJECT_CLASS (klass),
358 PROP_MAX_RESIDUAL_PARTITION_ORDER,
359 g_param_spec_uint ("max-residual-partition-order",
360 "Max residual partition order",
361 "Max residual partition order (above 4 doesn't usually help much)", 0,
362 16, flacenc_params[DEFAULT_QUALITY].max_residual_partition_order,
363 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
364 g_object_class_install_property (G_OBJECT_CLASS (klass),
365 PROP_RICE_PARAMETER_SEARCH_DIST,
366 g_param_spec_uint ("rice-parameter-search-dist",
367 "rice_parameter_search_dist",
368 "0 = try only calc'd parameter k; else try all [k-dist..k+dist] "
369 "parameters, use best", 0, FLAC__MAX_RICE_PARTITION_ORDER,
370 flacenc_params[DEFAULT_QUALITY].rice_parameter_search_dist,
371 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
376 * Write a PADDING block with this length in bytes
380 g_object_class_install_property (G_OBJECT_CLASS (klass),
382 g_param_spec_uint ("padding",
384 "Write a PADDING block with this length in bytes", 0, G_MAXUINT,
386 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
389 * GstFlacEnc:seekpoints
391 * Write a SEEKTABLE block with a specific number of seekpoints
392 * or with a specific interval spacing.
396 g_object_class_install_property (G_OBJECT_CLASS (klass),
398 g_param_spec_int ("seekpoints",
400 "Add SEEKTABLE metadata (if > 0, number of entries, if < 0, interval in sec)",
403 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
405 gstelement_class->change_state = gst_flac_enc_change_state;
409 gst_flac_enc_init (GstFlacEnc * flacenc, GstFlacEncClass * klass)
411 flacenc->sinkpad = gst_pad_new_from_static_template (&sink_factory, "sink");
412 gst_pad_set_chain_function (flacenc->sinkpad,
413 GST_DEBUG_FUNCPTR (gst_flac_enc_chain));
414 gst_pad_set_event_function (flacenc->sinkpad,
415 GST_DEBUG_FUNCPTR (gst_flac_enc_sink_event));
416 gst_pad_set_getcaps_function (flacenc->sinkpad,
417 GST_DEBUG_FUNCPTR (gst_flac_enc_sink_getcaps));
418 gst_pad_set_setcaps_function (flacenc->sinkpad,
419 GST_DEBUG_FUNCPTR (gst_flac_enc_sink_setcaps));
420 gst_element_add_pad (GST_ELEMENT (flacenc), flacenc->sinkpad);
422 flacenc->srcpad = gst_pad_new_from_static_template (&src_factory, "src");
423 gst_pad_use_fixed_caps (flacenc->srcpad);
424 gst_element_add_pad (GST_ELEMENT (flacenc), flacenc->srcpad);
426 flacenc->encoder = FLAC__stream_encoder_new ();
429 flacenc->samples_written = 0;
430 flacenc->channels = 0;
431 gst_flac_enc_update_quality (flacenc, DEFAULT_QUALITY);
432 flacenc->tags = gst_tag_list_new ();
433 flacenc->got_headers = FALSE;
434 flacenc->headers = NULL;
435 flacenc->last_flow = GST_FLOW_OK;
439 gst_flac_enc_finalize (GObject * object)
441 GstFlacEnc *flacenc = GST_FLAC_ENC (object);
443 gst_tag_list_free (flacenc->tags);
444 FLAC__stream_encoder_delete (flacenc->encoder);
446 G_OBJECT_CLASS (parent_class)->finalize (object);
450 add_one_tag (const GstTagList * list, const gchar * tag, gpointer user_data)
454 GstFlacEnc *flacenc = GST_FLAC_ENC (user_data);
456 /* IMAGE and PREVIEW_IMAGE tags are already written
457 * differently, no need to store them inside the
458 * vorbiscomments too */
459 if (strcmp (tag, GST_TAG_IMAGE) == 0
460 || strcmp (tag, GST_TAG_PREVIEW_IMAGE) == 0)
463 comments = gst_tag_to_vorbis_comments (list, tag);
464 for (it = comments; it != NULL; it = it->next) {
465 FLAC__StreamMetadata_VorbisComment_Entry commment_entry;
467 commment_entry.length = strlen (it->data);
468 commment_entry.entry = it->data;
469 FLAC__metadata_object_vorbiscomment_insert_comment (flacenc->meta[0],
470 flacenc->meta[0]->data.vorbis_comment.num_comments,
471 commment_entry, TRUE);
474 g_list_free (comments);
478 gst_flac_enc_set_metadata (GstFlacEnc * flacenc, guint64 total_samples)
480 const GstTagList *user_tags;
483 gint n_images, n_preview_images;
485 g_return_if_fail (flacenc != NULL);
486 user_tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (flacenc));
487 if ((flacenc->tags == NULL) && (user_tags == NULL)) {
490 copy = gst_tag_list_merge (user_tags, flacenc->tags,
491 gst_tag_setter_get_tag_merge_mode (GST_TAG_SETTER (flacenc)));
492 n_images = gst_tag_list_get_tag_size (copy, GST_TAG_IMAGE);
493 n_preview_images = gst_tag_list_get_tag_size (copy, GST_TAG_PREVIEW_IMAGE);
496 g_new0 (FLAC__StreamMetadata *, 3 + n_images + n_preview_images);
499 FLAC__metadata_object_new (FLAC__METADATA_TYPE_VORBIS_COMMENT);
500 gst_tag_list_foreach (copy, add_one_tag, flacenc);
502 if (n_images + n_preview_images > 0) {
505 GstStructure *structure;
506 GstTagImageType image_type = GST_TAG_IMAGE_TYPE_NONE;
509 for (i = 0; i < n_images + n_preview_images; i++) {
511 if (!gst_tag_list_get_buffer_index (copy, GST_TAG_IMAGE, i, &buffer))
514 if (!gst_tag_list_get_buffer_index (copy, GST_TAG_PREVIEW_IMAGE,
515 i - n_images, &buffer))
519 flacenc->meta[entries] =
520 FLAC__metadata_object_new (FLAC__METADATA_TYPE_PICTURE);
522 caps = gst_buffer_get_caps (buffer);
523 structure = gst_caps_get_structure (caps, 0);
525 gst_structure_get (structure, "image-type", GST_TYPE_TAG_IMAGE_TYPE,
527 /* Convert to ID3v2 APIC image type */
528 if (image_type == GST_TAG_IMAGE_TYPE_NONE)
529 image_type = (i < n_images) ? 0x00 : 0x01;
531 image_type = image_type + 2;
533 FLAC__metadata_object_picture_set_data (flacenc->meta[entries],
534 GST_BUFFER_DATA (buffer), GST_BUFFER_SIZE (buffer), TRUE);
535 /* FIXME: There's no way to set the picture type in libFLAC */
536 flacenc->meta[entries]->data.picture.type = image_type;
537 FLAC__metadata_object_picture_set_mime_type (flacenc->meta[entries],
538 (char *) gst_structure_get_name (structure), TRUE);
540 gst_caps_unref (caps);
541 gst_buffer_unref (buffer);
546 if (flacenc->seekpoints && total_samples != GST_CLOCK_TIME_NONE) {
550 flacenc->meta[entries] =
551 FLAC__metadata_object_new (FLAC__METADATA_TYPE_SEEKTABLE);
552 if (flacenc->seekpoints > 0) {
554 FLAC__metadata_object_seektable_template_append_spaced_points
555 (flacenc->meta[entries], flacenc->seekpoints, total_samples);
557 samples = -flacenc->seekpoints * flacenc->sample_rate;
559 FLAC__metadata_object_seektable_template_append_spaced_points_by_samples
560 (flacenc->meta[entries], samples, total_samples);
563 GST_DEBUG_OBJECT (flacenc, "adding seekpoint template %d failed",
564 flacenc->seekpoints);
565 FLAC__metadata_object_delete (flacenc->meta[1]);
566 flacenc->meta[entries] = NULL;
570 } else if (flacenc->seekpoints && total_samples == GST_CLOCK_TIME_NONE) {
571 GST_WARNING_OBJECT (flacenc, "total time unknown; can not add seekpoints");
574 if (flacenc->padding > 0) {
575 flacenc->meta[entries] =
576 FLAC__metadata_object_new (FLAC__METADATA_TYPE_PADDING);
577 flacenc->meta[entries]->length = flacenc->padding;
581 if (FLAC__stream_encoder_set_metadata (flacenc->encoder,
582 flacenc->meta, entries) != true)
583 g_warning ("Dude, i'm already initialized!");
585 gst_tag_list_free (copy);
589 gst_flac_enc_caps_append_structure_with_widths (GstCaps * caps,
593 GValue list = { 0, };
594 GValue depth = { 0, };
597 tmp = gst_structure_copy (s);
598 gst_structure_set (tmp, "width", G_TYPE_INT, 8, "depth", G_TYPE_INT, 8, NULL);
599 gst_caps_append_structure (caps, tmp);
601 tmp = gst_structure_copy (s);
603 g_value_init (&depth, G_TYPE_INT);
604 g_value_init (&list, GST_TYPE_LIST);
605 g_value_set_int (&depth, 12);
606 gst_value_list_append_value (&list, &depth);
607 g_value_set_int (&depth, 16);
608 gst_value_list_append_value (&list, &depth);
610 gst_structure_set (tmp, "width", G_TYPE_INT, 16, NULL);
611 gst_structure_set_value (tmp, "depth", &list);
612 gst_caps_append_structure (caps, tmp);
614 g_value_reset (&list);
618 g_value_set_int (&depth, 20);
619 gst_value_list_append_value (&list, &depth);
620 g_value_set_int (&depth, 24);
621 gst_value_list_append_value (&list, &depth);
623 gst_structure_set (tmp, "width", G_TYPE_INT, 32, NULL);
624 gst_structure_set_value (tmp, "depth", &list);
625 gst_caps_append_structure (caps, tmp);
627 g_value_unset (&list);
628 g_value_unset (&depth);
632 gst_flac_enc_sink_getcaps (GstPad * pad)
636 GST_OBJECT_LOCK (pad);
638 if (GST_PAD_CAPS (pad)) {
639 ret = gst_caps_ref (GST_PAD_CAPS (pad));
643 ret = gst_caps_new_empty ();
645 gst_flac_enc_caps_append_structure_with_widths (ret,
646 gst_structure_new ("audio/x-raw-int",
647 "endianness", G_TYPE_INT, G_BYTE_ORDER,
648 "signed", G_TYPE_BOOLEAN, TRUE,
649 "rate", GST_TYPE_INT_RANGE, 1, 655350,
650 "channels", GST_TYPE_INT_RANGE, 1, 2, NULL));
652 for (i = 3; i <= 8; i++) {
653 GValue positions = { 0, };
657 g_value_init (&positions, GST_TYPE_ARRAY);
658 g_value_init (&pos, GST_TYPE_AUDIO_CHANNEL_POSITION);
660 for (c = 0; c < i; c++) {
661 g_value_set_enum (&pos, channel_positions[i - 1][c]);
662 gst_value_array_append_value (&positions, &pos);
664 g_value_unset (&pos);
666 s = gst_structure_new ("audio/x-raw-int",
667 "endianness", G_TYPE_INT, G_BYTE_ORDER,
668 "signed", G_TYPE_BOOLEAN, TRUE,
669 "rate", GST_TYPE_INT_RANGE, 1, 655350,
670 "channels", G_TYPE_INT, i, NULL);
671 gst_structure_set_value (s, "channel-positions", &positions);
672 g_value_unset (&positions);
674 gst_flac_enc_caps_append_structure_with_widths (ret, s);
678 GST_OBJECT_UNLOCK (pad);
680 GST_DEBUG_OBJECT (pad, "Return caps %" GST_PTR_FORMAT, ret);
686 gst_flac_enc_query_peer_total_samples (GstFlacEnc * flacenc, GstPad * pad)
688 GstFormat fmt = GST_FORMAT_DEFAULT;
691 GST_DEBUG_OBJECT (flacenc, "querying peer for DEFAULT format duration");
692 if (gst_pad_query_peer_duration (pad, &fmt, &duration)
693 && fmt == GST_FORMAT_DEFAULT && duration != GST_CLOCK_TIME_NONE)
696 fmt = GST_FORMAT_TIME;
697 GST_DEBUG_OBJECT (flacenc, "querying peer for TIME format duration");
699 if (gst_pad_query_peer_duration (pad, &fmt, &duration) &&
700 fmt == GST_FORMAT_TIME && duration != GST_CLOCK_TIME_NONE) {
701 GST_DEBUG_OBJECT (flacenc, "peer reported duration %" GST_TIME_FORMAT,
702 GST_TIME_ARGS (duration));
703 duration = GST_CLOCK_TIME_TO_FRAMES (duration, flacenc->sample_rate);
708 GST_DEBUG_OBJECT (flacenc, "Upstream reported no total samples");
709 return GST_CLOCK_TIME_NONE;
712 GST_DEBUG_OBJECT (flacenc,
713 "Upstream reported %" G_GUINT64_FORMAT " total samples", duration);
719 gst_flac_enc_sink_setcaps (GstPad * pad, GstCaps * caps)
722 GstStructure *structure;
723 guint64 total_samples = GST_CLOCK_TIME_NONE;
724 FLAC__StreamEncoderInitStatus init_status;
725 gint depth, chans, rate, width;
727 flacenc = GST_FLAC_ENC (gst_pad_get_parent (pad));
729 if (FLAC__stream_encoder_get_state (flacenc->encoder) !=
730 FLAC__STREAM_ENCODER_UNINITIALIZED)
731 goto encoder_already_initialized;
733 structure = gst_caps_get_structure (caps, 0);
735 if (!gst_structure_get_int (structure, "channels", &chans) ||
736 !gst_structure_get_int (structure, "width", &width) ||
737 !gst_structure_get_int (structure, "depth", &depth) ||
738 !gst_structure_get_int (structure, "rate", &rate)) {
739 GST_DEBUG_OBJECT (flacenc, "incomplete caps: %" GST_PTR_FORMAT, caps);
743 flacenc->channels = chans;
744 flacenc->width = width;
745 flacenc->depth = depth;
746 flacenc->sample_rate = rate;
748 caps = gst_caps_new_simple ("audio/x-flac",
749 "channels", G_TYPE_INT, flacenc->channels,
750 "rate", G_TYPE_INT, flacenc->sample_rate, NULL);
752 if (!gst_pad_set_caps (flacenc->srcpad, caps))
753 goto setting_src_caps_failed;
755 gst_caps_unref (caps);
757 total_samples = gst_flac_enc_query_peer_total_samples (flacenc, pad);
759 FLAC__stream_encoder_set_bits_per_sample (flacenc->encoder, flacenc->depth);
760 FLAC__stream_encoder_set_sample_rate (flacenc->encoder, flacenc->sample_rate);
761 FLAC__stream_encoder_set_channels (flacenc->encoder, flacenc->channels);
763 if (total_samples != GST_CLOCK_TIME_NONE)
764 FLAC__stream_encoder_set_total_samples_estimate (flacenc->encoder,
765 MIN (total_samples, G_GUINT64_CONSTANT (0x0FFFFFFFFF)));
767 gst_flac_enc_set_metadata (flacenc, total_samples);
769 init_status = FLAC__stream_encoder_init_stream (flacenc->encoder,
770 gst_flac_enc_write_callback, gst_flac_enc_seek_callback,
771 gst_flac_enc_tell_callback, NULL, flacenc);
772 if (init_status != FLAC__STREAM_ENCODER_INIT_STATUS_OK)
773 goto failed_to_initialize;
775 gst_object_unref (flacenc);
779 encoder_already_initialized:
781 g_warning ("flac already initialized -- fixme allow this");
782 gst_object_unref (flacenc);
785 setting_src_caps_failed:
787 GST_DEBUG_OBJECT (flacenc,
788 "Couldn't set caps on source pad: %" GST_PTR_FORMAT, caps);
789 gst_caps_unref (caps);
790 gst_object_unref (flacenc);
793 failed_to_initialize:
795 GST_ELEMENT_ERROR (flacenc, LIBRARY, INIT, (NULL),
796 ("could not initialize encoder (wrong parameters?)"));
797 gst_object_unref (flacenc);
803 gst_flac_enc_update_quality (GstFlacEnc * flacenc, gint quality)
805 flacenc->quality = quality;
807 #define DO_UPDATE(name, val, str) \
809 if (FLAC__stream_encoder_get_##name (flacenc->encoder) != \
810 flacenc_params[quality].val) { \
811 FLAC__stream_encoder_set_##name (flacenc->encoder, \
812 flacenc_params[quality].val); \
813 g_object_notify (G_OBJECT (flacenc), str); \
817 g_object_freeze_notify (G_OBJECT (flacenc));
819 if (flacenc->channels == 2 || flacenc->channels == 0) {
820 DO_UPDATE (do_mid_side_stereo, mid_side, "mid_side_stereo");
821 DO_UPDATE (loose_mid_side_stereo, loose_mid_side, "loose_mid_side");
824 DO_UPDATE (blocksize, blocksize, "blocksize");
825 DO_UPDATE (max_lpc_order, max_lpc_order, "max_lpc_order");
826 DO_UPDATE (qlp_coeff_precision, qlp_coeff_precision, "qlp_coeff_precision");
827 DO_UPDATE (do_qlp_coeff_prec_search, qlp_coeff_prec_search,
828 "qlp_coeff_prec_search");
829 DO_UPDATE (do_escape_coding, escape_coding, "escape_coding");
830 DO_UPDATE (do_exhaustive_model_search, exhaustive_model_search,
831 "exhaustive_model_search");
832 DO_UPDATE (min_residual_partition_order, min_residual_partition_order,
833 "min_residual_partition_order");
834 DO_UPDATE (max_residual_partition_order, max_residual_partition_order,
835 "max_residual_partition_order");
836 DO_UPDATE (rice_parameter_search_dist, rice_parameter_search_dist,
837 "rice_parameter_search_dist");
841 g_object_thaw_notify (G_OBJECT (flacenc));
846 static FLAC__StreamEncoderSeekStatus
847 gst_flac_enc_seek_callback (const FLAC__StreamEncoder * encoder,
848 FLAC__uint64 absolute_byte_offset, void *client_data)
854 flacenc = GST_FLAC_ENC (client_data);
856 if (flacenc->stopped)
857 return FLAC__STREAM_ENCODER_SEEK_STATUS_OK;
859 event = gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_BYTES,
860 absolute_byte_offset, GST_BUFFER_OFFSET_NONE, 0);
862 if ((peerpad = gst_pad_get_peer (flacenc->srcpad))) {
863 gboolean ret = gst_pad_send_event (peerpad, event);
865 gst_object_unref (peerpad);
868 GST_DEBUG ("Seek to %" G_GUINT64_FORMAT " %s",
869 (guint64) absolute_byte_offset, "succeeded");
871 GST_DEBUG ("Seek to %" G_GUINT64_FORMAT " %s",
872 (guint64) absolute_byte_offset, "failed");
873 return FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED;
876 GST_DEBUG ("Seek to %" G_GUINT64_FORMAT " failed (no peer pad)",
877 (guint64) absolute_byte_offset);
880 flacenc->offset = absolute_byte_offset;
881 return FLAC__STREAM_ENCODER_SEEK_STATUS_OK;
885 notgst_value_array_append_buffer (GValue * array_val, GstBuffer * buf)
887 GValue value = { 0, };
889 g_value_init (&value, GST_TYPE_BUFFER);
890 /* copy buffer to avoid problems with circular refcounts */
891 buf = gst_buffer_copy (buf);
892 /* again, for good measure */
893 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_IN_CAPS);
894 gst_value_set_buffer (&value, buf);
895 gst_buffer_unref (buf);
896 gst_value_array_append_value (array_val, &value);
897 g_value_unset (&value);
900 #define HDR_TYPE_STREAMINFO 0
901 #define HDR_TYPE_VORBISCOMMENT 4
904 gst_flac_enc_process_stream_headers (GstFlacEnc * enc)
906 GstBuffer *vorbiscomment = NULL;
907 GstBuffer *streaminfo = NULL;
908 GstBuffer *marker = NULL;
909 GValue array = { 0, };
913 caps = gst_caps_new_simple ("audio/x-flac",
914 "channels", G_TYPE_INT, enc->channels,
915 "rate", G_TYPE_INT, enc->sample_rate, NULL);
917 for (l = enc->headers; l != NULL; l = l->next) {
921 /* mark buffers so oggmux will ignore them if it already muxed the
922 * header buffers from the streamheaders field in the caps */
923 l->data = gst_buffer_make_metadata_writable (GST_BUFFER (l->data));
924 GST_BUFFER_FLAG_SET (GST_BUFFER (l->data), GST_BUFFER_FLAG_IN_CAPS);
926 data = GST_BUFFER_DATA (GST_BUFFER_CAST (l->data));
927 size = GST_BUFFER_SIZE (GST_BUFFER_CAST (l->data));
929 /* find initial 4-byte marker which we need to skip later on */
930 if (size == 4 && memcmp (data, "fLaC", 4) == 0) {
931 marker = GST_BUFFER_CAST (l->data);
932 } else if (size > 1 && (data[0] & 0x7f) == HDR_TYPE_STREAMINFO) {
933 streaminfo = GST_BUFFER_CAST (l->data);
934 } else if (size > 1 && (data[0] & 0x7f) == HDR_TYPE_VORBISCOMMENT) {
935 vorbiscomment = GST_BUFFER_CAST (l->data);
939 if (marker == NULL || streaminfo == NULL || vorbiscomment == NULL) {
940 GST_WARNING_OBJECT (enc, "missing header %p %p %p, muxing into container "
941 "formats may be broken", marker, streaminfo, vorbiscomment);
945 g_value_init (&array, GST_TYPE_ARRAY);
947 /* add marker including STREAMINFO header */
952 /* minus one for the marker that is merged with streaminfo here */
953 num = g_list_length (enc->headers) - 1;
955 buf = gst_buffer_new_and_alloc (13 + GST_BUFFER_SIZE (streaminfo));
956 GST_BUFFER_DATA (buf)[0] = 0x7f;
957 memcpy (GST_BUFFER_DATA (buf) + 1, "FLAC", 4);
958 GST_BUFFER_DATA (buf)[5] = 0x01; /* mapping version major */
959 GST_BUFFER_DATA (buf)[6] = 0x00; /* mapping version minor */
960 GST_BUFFER_DATA (buf)[7] = (num & 0xFF00) >> 8;
961 GST_BUFFER_DATA (buf)[8] = (num & 0x00FF) >> 0;
962 memcpy (GST_BUFFER_DATA (buf) + 9, "fLaC", 4);
963 memcpy (GST_BUFFER_DATA (buf) + 13, GST_BUFFER_DATA (streaminfo),
964 GST_BUFFER_SIZE (streaminfo));
965 notgst_value_array_append_buffer (&array, buf);
966 gst_buffer_unref (buf);
969 /* add VORBISCOMMENT header */
970 notgst_value_array_append_buffer (&array, vorbiscomment);
972 /* add other headers, if there are any */
973 for (l = enc->headers; l != NULL; l = l->next) {
974 if (GST_BUFFER_CAST (l->data) != marker &&
975 GST_BUFFER_CAST (l->data) != streaminfo &&
976 GST_BUFFER_CAST (l->data) != vorbiscomment) {
977 notgst_value_array_append_buffer (&array, GST_BUFFER_CAST (l->data));
981 gst_structure_set_value (gst_caps_get_structure (caps, 0),
982 "streamheader", &array);
983 g_value_unset (&array);
987 gst_pad_set_caps (enc->srcpad, caps);
989 /* push header buffers; update caps, so when we push the first buffer the
990 * negotiated caps will change to caps that include the streamheader field */
991 for (l = enc->headers; l != NULL; l = l->next) {
994 buf = GST_BUFFER (l->data);
995 gst_buffer_set_caps (buf, caps);
996 GST_LOG_OBJECT (enc, "Pushing header buffer, size %u bytes",
997 GST_BUFFER_SIZE (buf));
998 GST_MEMDUMP_OBJECT (enc, "header buffer", GST_BUFFER_DATA (buf),
999 GST_BUFFER_SIZE (buf));
1000 (void) gst_pad_push (enc->srcpad, buf);
1003 g_list_free (enc->headers);
1004 enc->headers = NULL;
1006 gst_caps_unref (caps);
1009 static FLAC__StreamEncoderWriteStatus
1010 gst_flac_enc_write_callback (const FLAC__StreamEncoder * encoder,
1011 const FLAC__byte buffer[], size_t bytes,
1012 unsigned samples, unsigned current_frame, void *client_data)
1014 GstFlowReturn ret = GST_FLOW_OK;
1015 GstFlacEnc *flacenc;
1018 flacenc = GST_FLAC_ENC (client_data);
1020 if (flacenc->stopped)
1021 return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
1023 outbuf = gst_buffer_new_and_alloc (bytes);
1024 memcpy (GST_BUFFER_DATA (outbuf), buffer, bytes);
1026 if (samples > 0 && flacenc->samples_written != (guint64) - 1) {
1029 GST_BUFFER_TIMESTAMP (outbuf) = flacenc->start_ts +
1030 GST_FRAMES_TO_CLOCK_TIME (flacenc->samples_written,
1031 flacenc->sample_rate);
1032 GST_BUFFER_DURATION (outbuf) =
1033 GST_FRAMES_TO_CLOCK_TIME (samples, flacenc->sample_rate);
1034 /* offset_end = granulepos for ogg muxer */
1036 flacenc->granulepos_offset + flacenc->samples_written + samples;
1037 GST_BUFFER_OFFSET_END (outbuf) = granulepos;
1038 /* offset = timestamp corresponding to granulepos for ogg muxer
1039 * (see vorbisenc for a much more elaborate version of this) */
1040 GST_BUFFER_OFFSET (outbuf) =
1041 GST_FRAMES_TO_CLOCK_TIME (granulepos, flacenc->sample_rate);
1043 GST_BUFFER_TIMESTAMP (outbuf) = GST_CLOCK_TIME_NONE;
1044 GST_BUFFER_DURATION (outbuf) = GST_CLOCK_TIME_NONE;
1045 GST_BUFFER_OFFSET (outbuf) =
1046 flacenc->samples_written * flacenc->width * flacenc->channels;
1047 GST_BUFFER_OFFSET_END (outbuf) = 0;
1048 GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_IN_CAPS);
1051 /* we assume libflac passes us stuff neatly framed */
1052 if (!flacenc->got_headers) {
1054 GST_DEBUG_OBJECT (flacenc, "Got header, queueing (%u bytes)",
1056 flacenc->headers = g_list_append (flacenc->headers, outbuf);
1057 /* note: it's important that we increase our byte offset */
1060 GST_INFO_OBJECT (flacenc, "Non-header packet, we have all headers now");
1061 gst_flac_enc_process_stream_headers (flacenc);
1062 flacenc->got_headers = TRUE;
1064 } else if (flacenc->got_headers && samples == 0) {
1065 GST_DEBUG_OBJECT (flacenc, "Fixing up headers at pos=%" G_GUINT64_FORMAT
1066 ", size=%u", flacenc->offset, (guint) bytes);
1067 GST_MEMDUMP_OBJECT (flacenc, "Presumed header fragment",
1068 GST_BUFFER_DATA (outbuf), GST_BUFFER_SIZE (outbuf));
1070 GST_LOG ("Pushing buffer: ts=%" GST_TIME_FORMAT ", samples=%u, size=%u, "
1071 "pos=%" G_GUINT64_FORMAT, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)),
1072 samples, (guint) bytes, flacenc->offset);
1075 gst_buffer_set_caps (outbuf, GST_PAD_CAPS (flacenc->srcpad));
1076 ret = gst_pad_push (flacenc->srcpad, outbuf);
1078 if (ret != GST_FLOW_OK)
1079 GST_DEBUG_OBJECT (flacenc, "flow: %s", gst_flow_get_name (ret));
1081 flacenc->last_flow = ret;
1085 flacenc->offset += bytes;
1086 flacenc->samples_written += samples;
1088 if (ret != GST_FLOW_OK)
1089 return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
1091 return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
1094 static FLAC__StreamEncoderTellStatus
1095 gst_flac_enc_tell_callback (const FLAC__StreamEncoder * encoder,
1096 FLAC__uint64 * absolute_byte_offset, void *client_data)
1098 GstFlacEnc *flacenc = GST_FLAC_ENC (client_data);
1100 *absolute_byte_offset = flacenc->offset;
1102 return FLAC__STREAM_ENCODER_TELL_STATUS_OK;
1106 gst_flac_enc_sink_event (GstPad * pad, GstEvent * event)
1108 GstFlacEnc *flacenc;
1109 GstTagList *taglist;
1110 gboolean ret = TRUE;
1112 flacenc = GST_FLAC_ENC (gst_pad_get_parent (pad));
1114 GST_DEBUG ("Received %s event on sinkpad", GST_EVENT_TYPE_NAME (event));
1116 switch (GST_EVENT_TYPE (event)) {
1117 case GST_EVENT_NEWSEGMENT:{
1119 gint64 start, stream_time;
1121 if (flacenc->offset == 0) {
1122 gst_event_parse_new_segment (event, NULL, NULL, &format, &start, NULL,
1130 if (flacenc->offset > 0)
1131 GST_DEBUG ("Not handling mid-stream newsegment event");
1133 GST_DEBUG ("Not handling newsegment event with non-zero start");
1135 GstEvent *e = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES,
1138 ret = gst_pad_push_event (flacenc->srcpad, e);
1141 if (stream_time > 0) {
1142 GST_DEBUG ("Not handling non-zero stream time");
1145 gst_event_unref (event);
1146 /* don't push it downstream, we'll generate our own via seek to 0 */
1150 FLAC__stream_encoder_finish (flacenc->encoder);
1151 ret = gst_pad_event_default (pad, event);
1154 if (flacenc->tags) {
1155 gst_event_parse_tag (event, &taglist);
1156 gst_tag_list_insert (flacenc->tags, taglist,
1157 gst_tag_setter_get_tag_merge_mode (GST_TAG_SETTER (flacenc)));
1159 g_assert_not_reached ();
1161 ret = gst_pad_event_default (pad, event);
1164 ret = gst_pad_event_default (pad, event);
1168 gst_object_unref (flacenc);
1174 gst_flac_enc_check_discont (GstFlacEnc * flacenc, GstClockTime expected,
1175 GstClockTime timestamp)
1177 guint allowed_diff = GST_SECOND / flacenc->sample_rate / 2;
1179 if ((timestamp + allowed_diff < expected)
1180 || (timestamp > expected + allowed_diff)) {
1181 GST_ELEMENT_WARNING (flacenc, STREAM, FORMAT, (NULL),
1182 ("Stream discontinuity detected (wanted %" GST_TIME_FORMAT " got %"
1183 GST_TIME_FORMAT "). The output will have wrong timestamps,"
1184 " consider using audiorate to handle discontinuities",
1185 GST_TIME_ARGS (expected), GST_TIME_ARGS (timestamp)));
1189 /* TODO: Do something to handle discontinuities in the stream. The FLAC encoder
1190 * unfortunately doesn't have any way to flush it's internal buffers */
1195 static GstFlowReturn
1196 gst_flac_enc_chain (GstPad * pad, GstBuffer * buffer)
1198 GstFlacEnc *flacenc;
1201 gint samples, width;
1205 flacenc = GST_FLAC_ENC (GST_PAD_PARENT (pad));
1207 /* make sure setcaps has been called and the encoder is set up */
1208 if (G_UNLIKELY (flacenc->depth == 0))
1209 return GST_FLOW_NOT_NEGOTIATED;
1211 width = flacenc->width;
1213 /* Save the timestamp of the first buffer. This will be later
1214 * used as offset for all following buffers */
1215 if (flacenc->start_ts == GST_CLOCK_TIME_NONE) {
1216 if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer)) {
1217 flacenc->start_ts = GST_BUFFER_TIMESTAMP (buffer);
1218 flacenc->granulepos_offset = gst_util_uint64_scale
1219 (GST_BUFFER_TIMESTAMP (buffer), flacenc->sample_rate, GST_SECOND);
1221 flacenc->start_ts = 0;
1222 flacenc->granulepos_offset = 0;
1226 /* Check if we have a continous stream, if not drop some samples or the buffer or
1227 * insert some silence samples */
1228 if (flacenc->next_ts != GST_CLOCK_TIME_NONE
1229 && GST_BUFFER_TIMESTAMP_IS_VALID (buffer)) {
1230 gst_flac_enc_check_discont (flacenc, flacenc->next_ts,
1231 GST_BUFFER_TIMESTAMP (buffer));
1234 if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer)
1235 && GST_BUFFER_DURATION_IS_VALID (buffer))
1237 GST_BUFFER_TIMESTAMP (buffer) + GST_BUFFER_DURATION (buffer);
1239 flacenc->next_ts = GST_CLOCK_TIME_NONE;
1241 insize = GST_BUFFER_SIZE (buffer);
1242 samples = insize / (width >> 3);
1244 data = g_malloc (samples * sizeof (FLAC__int32));
1247 gint8 *indata = (gint8 *) GST_BUFFER_DATA (buffer);
1249 for (i = 0; i < samples; i++)
1250 data[i] = (FLAC__int32) indata[i];
1251 } else if (width == 16) {
1252 gint16 *indata = (gint16 *) GST_BUFFER_DATA (buffer);
1254 for (i = 0; i < samples; i++)
1255 data[i] = (FLAC__int32) indata[i];
1256 } else if (width == 32) {
1257 gint32 *indata = (gint32 *) GST_BUFFER_DATA (buffer);
1259 for (i = 0; i < samples; i++)
1260 data[i] = (FLAC__int32) indata[i];
1262 g_assert_not_reached ();
1265 gst_buffer_unref (buffer);
1267 res = FLAC__stream_encoder_process_interleaved (flacenc->encoder,
1268 (const FLAC__int32 *) data, samples / flacenc->channels);
1273 if (flacenc->last_flow == GST_FLOW_OK)
1274 return GST_FLOW_ERROR;
1276 return flacenc->last_flow;
1283 gst_flac_enc_set_property (GObject * object, guint prop_id,
1284 const GValue * value, GParamSpec * pspec)
1286 GstFlacEnc *this = GST_FLAC_ENC (object);
1288 GST_OBJECT_LOCK (this);
1292 gst_flac_enc_update_quality (this, g_value_get_enum (value));
1294 case PROP_STREAMABLE_SUBSET:
1295 FLAC__stream_encoder_set_streamable_subset (this->encoder,
1296 g_value_get_boolean (value));
1298 case PROP_MID_SIDE_STEREO:
1299 FLAC__stream_encoder_set_do_mid_side_stereo (this->encoder,
1300 g_value_get_boolean (value));
1302 case PROP_LOOSE_MID_SIDE_STEREO:
1303 FLAC__stream_encoder_set_loose_mid_side_stereo (this->encoder,
1304 g_value_get_boolean (value));
1306 case PROP_BLOCKSIZE:
1307 FLAC__stream_encoder_set_blocksize (this->encoder,
1308 g_value_get_uint (value));
1310 case PROP_MAX_LPC_ORDER:
1311 FLAC__stream_encoder_set_max_lpc_order (this->encoder,
1312 g_value_get_uint (value));
1314 case PROP_QLP_COEFF_PRECISION:
1315 FLAC__stream_encoder_set_qlp_coeff_precision (this->encoder,
1316 g_value_get_uint (value));
1318 case PROP_QLP_COEFF_PREC_SEARCH:
1319 FLAC__stream_encoder_set_do_qlp_coeff_prec_search (this->encoder,
1320 g_value_get_boolean (value));
1322 case PROP_ESCAPE_CODING:
1323 FLAC__stream_encoder_set_do_escape_coding (this->encoder,
1324 g_value_get_boolean (value));
1326 case PROP_EXHAUSTIVE_MODEL_SEARCH:
1327 FLAC__stream_encoder_set_do_exhaustive_model_search (this->encoder,
1328 g_value_get_boolean (value));
1330 case PROP_MIN_RESIDUAL_PARTITION_ORDER:
1331 FLAC__stream_encoder_set_min_residual_partition_order (this->encoder,
1332 g_value_get_uint (value));
1334 case PROP_MAX_RESIDUAL_PARTITION_ORDER:
1335 FLAC__stream_encoder_set_max_residual_partition_order (this->encoder,
1336 g_value_get_uint (value));
1338 case PROP_RICE_PARAMETER_SEARCH_DIST:
1339 FLAC__stream_encoder_set_rice_parameter_search_dist (this->encoder,
1340 g_value_get_uint (value));
1343 this->padding = g_value_get_uint (value);
1345 case PROP_SEEKPOINTS:
1346 this->seekpoints = g_value_get_int (value);
1349 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1353 GST_OBJECT_UNLOCK (this);
1357 gst_flac_enc_get_property (GObject * object, guint prop_id,
1358 GValue * value, GParamSpec * pspec)
1360 GstFlacEnc *this = GST_FLAC_ENC (object);
1362 GST_OBJECT_LOCK (this);
1366 g_value_set_enum (value, this->quality);
1368 case PROP_STREAMABLE_SUBSET:
1369 g_value_set_boolean (value,
1370 FLAC__stream_encoder_get_streamable_subset (this->encoder));
1372 case PROP_MID_SIDE_STEREO:
1373 g_value_set_boolean (value,
1374 FLAC__stream_encoder_get_do_mid_side_stereo (this->encoder));
1376 case PROP_LOOSE_MID_SIDE_STEREO:
1377 g_value_set_boolean (value,
1378 FLAC__stream_encoder_get_loose_mid_side_stereo (this->encoder));
1380 case PROP_BLOCKSIZE:
1381 g_value_set_uint (value,
1382 FLAC__stream_encoder_get_blocksize (this->encoder));
1384 case PROP_MAX_LPC_ORDER:
1385 g_value_set_uint (value,
1386 FLAC__stream_encoder_get_max_lpc_order (this->encoder));
1388 case PROP_QLP_COEFF_PRECISION:
1389 g_value_set_uint (value,
1390 FLAC__stream_encoder_get_qlp_coeff_precision (this->encoder));
1392 case PROP_QLP_COEFF_PREC_SEARCH:
1393 g_value_set_boolean (value,
1394 FLAC__stream_encoder_get_do_qlp_coeff_prec_search (this->encoder));
1396 case PROP_ESCAPE_CODING:
1397 g_value_set_boolean (value,
1398 FLAC__stream_encoder_get_do_escape_coding (this->encoder));
1400 case PROP_EXHAUSTIVE_MODEL_SEARCH:
1401 g_value_set_boolean (value,
1402 FLAC__stream_encoder_get_do_exhaustive_model_search (this->encoder));
1404 case PROP_MIN_RESIDUAL_PARTITION_ORDER:
1405 g_value_set_uint (value,
1406 FLAC__stream_encoder_get_min_residual_partition_order
1409 case PROP_MAX_RESIDUAL_PARTITION_ORDER:
1410 g_value_set_uint (value,
1411 FLAC__stream_encoder_get_max_residual_partition_order
1414 case PROP_RICE_PARAMETER_SEARCH_DIST:
1415 g_value_set_uint (value,
1416 FLAC__stream_encoder_get_rice_parameter_search_dist (this->encoder));
1419 g_value_set_uint (value, this->padding);
1421 case PROP_SEEKPOINTS:
1422 g_value_set_int (value, this->seekpoints);
1425 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1429 GST_OBJECT_UNLOCK (this);
1432 static GstStateChangeReturn
1433 gst_flac_enc_change_state (GstElement * element, GstStateChange transition)
1435 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
1436 GstFlacEnc *flacenc = GST_FLAC_ENC (element);
1438 switch (transition) {
1439 case GST_STATE_CHANGE_NULL_TO_READY:
1440 case GST_STATE_CHANGE_READY_TO_PAUSED:
1441 flacenc->stopped = FALSE;
1442 flacenc->start_ts = GST_CLOCK_TIME_NONE;
1443 flacenc->next_ts = GST_CLOCK_TIME_NONE;
1444 flacenc->granulepos_offset = 0;
1446 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
1451 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
1453 switch (transition) {
1454 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
1456 case GST_STATE_CHANGE_PAUSED_TO_READY:
1457 if (FLAC__stream_encoder_get_state (flacenc->encoder) !=
1458 FLAC__STREAM_ENCODER_UNINITIALIZED) {
1459 flacenc->stopped = TRUE;
1460 FLAC__stream_encoder_finish (flacenc->encoder);
1462 flacenc->offset = 0;
1463 flacenc->samples_written = 0;
1464 flacenc->channels = 0;
1466 flacenc->sample_rate = 0;
1467 if (flacenc->meta) {
1468 FLAC__metadata_object_delete (flacenc->meta[0]);
1470 if (flacenc->meta[1])
1471 FLAC__metadata_object_delete (flacenc->meta[1]);
1473 if (flacenc->meta[2])
1474 FLAC__metadata_object_delete (flacenc->meta[2]);
1476 g_free (flacenc->meta);
1477 flacenc->meta = NULL;
1479 g_list_foreach (flacenc->headers, (GFunc) gst_mini_object_unref, NULL);
1480 g_list_free (flacenc->headers);
1481 flacenc->headers = NULL;
1482 flacenc->got_headers = FALSE;
1483 flacenc->last_flow = GST_FLOW_OK;
1485 case GST_STATE_CHANGE_READY_TO_NULL: