1 /* GStreamer Wavpack encoder plugin
2 * Copyright (c) 2006 Sebastian Dröge <slomo@circular-chaos.org>
4 * gstwavpackdec.c: Wavpack audio encoder
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
16 * You should have received a copy of the GNU Library General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
23 * SECTION:element-wavpackenc
25 * WavpackEnc encodes raw audio into a framed Wavpack stream.
26 * <ulink url="http://www.wavpack.com/">Wavpack</ulink> is an open-source
27 * audio codec that features both lossless and lossy encoding.
30 * <title>Example launch line</title>
32 * gst-launch audiotestsrc num-buffers=500 ! audioconvert ! wavpackenc ! filesink location=sinewave.wv
33 * ]| This pipeline encodes audio from audiotestsrc into a Wavpack file. The audioconvert element is needed
34 * as the Wavpack encoder only accepts input with 32 bit width (and every depth between 1 and 32 bits).
36 * gst-launch cdda://1 ! audioconvert ! wavpackenc ! filesink location=track1.wv
37 * ]| This pipeline encodes audio from an audio CD into a Wavpack file using
38 * lossless encoding (the file output will be fairly large).
40 * gst-launch cdda://1 ! audioconvert ! wavpackenc bitrate=128000 ! filesink location=track1.wv
41 * ]| This pipeline encodes audio from an audio CD into a Wavpack file using
42 * lossy encoding at a certain bitrate (the file will be fairly small).
47 * TODO: - add 32 bit float mode. CONFIG_FLOAT_DATA
52 #include <glib/gprintf.h>
54 #include <wavpack/wavpack.h>
55 #include "gstwavpackenc.h"
56 #include "gstwavpackcommon.h"
58 static GstFlowReturn gst_wavpack_enc_chain (GstPad * pad, GstBuffer * buffer);
59 static gboolean gst_wavpack_enc_sink_set_caps (GstPad * pad, GstCaps * caps);
60 static int gst_wavpack_enc_push_block (void *id, void *data, int32_t count);
61 static gboolean gst_wavpack_enc_sink_event (GstPad * pad, GstEvent * event);
62 static GstStateChangeReturn gst_wavpack_enc_change_state (GstElement * element,
63 GstStateChange transition);
64 static void gst_wavpack_enc_set_property (GObject * object, guint prop_id,
65 const GValue * value, GParamSpec * pspec);
66 static void gst_wavpack_enc_get_property (GObject * object, guint prop_id,
67 GValue * value, GParamSpec * pspec);
81 GST_DEBUG_CATEGORY_STATIC (gst_wavpack_enc_debug);
82 #define GST_CAT_DEFAULT gst_wavpack_enc_debug
84 static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
87 GST_STATIC_CAPS ("audio/x-raw-int, "
89 "depth = (int) [ 1, 32], "
90 "endianness = (int) BYTE_ORDER, "
91 "channels = (int) [ 1, 8 ], "
92 "rate = (int) [ 6000, 192000 ]," "signed = (boolean) TRUE")
95 static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
98 GST_STATIC_CAPS ("audio/x-wavpack, "
99 "width = (int) [ 1, 32 ], "
100 "channels = (int) [ 1, 2 ], "
101 "rate = (int) [ 6000, 192000 ], " "framed = (boolean) TRUE")
104 static GstStaticPadTemplate wvcsrc_factory = GST_STATIC_PAD_TEMPLATE ("wvcsrc",
107 GST_STATIC_CAPS ("audio/x-wavpack-correction, " "framed = (boolean) TRUE")
112 GST_WAVPACK_ENC_MODE_VERY_FAST = 0,
113 GST_WAVPACK_ENC_MODE_FAST,
114 GST_WAVPACK_ENC_MODE_DEFAULT,
115 GST_WAVPACK_ENC_MODE_HIGH,
116 GST_WAVPACK_ENC_MODE_VERY_HIGH
119 #define GST_TYPE_WAVPACK_ENC_MODE (gst_wavpack_enc_mode_get_type ())
121 gst_wavpack_enc_mode_get_type (void)
123 static GType qtype = 0;
126 static const GEnumValue values[] = {
128 /* Very Fast Compression is not supported yet, but will be supported
129 * in future wavpack versions */
130 {GST_WAVPACK_ENC_MODE_VERY_FAST, "Very Fast Compression", "veryfast"},
132 {GST_WAVPACK_ENC_MODE_FAST, "Fast Compression", "fast"},
133 {GST_WAVPACK_ENC_MODE_DEFAULT, "Normal Compression", "normal"},
134 {GST_WAVPACK_ENC_MODE_HIGH, "High Compression", "high"},
135 #ifndef WAVPACK_OLD_API
136 {GST_WAVPACK_ENC_MODE_VERY_HIGH, "Very High Compression", "veryhigh"},
141 qtype = g_enum_register_static ("GstWavpackEncMode", values);
148 GST_WAVPACK_CORRECTION_MODE_OFF = 0,
149 GST_WAVPACK_CORRECTION_MODE_ON,
150 GST_WAVPACK_CORRECTION_MODE_OPTIMIZED
153 #define GST_TYPE_WAVPACK_ENC_CORRECTION_MODE (gst_wavpack_enc_correction_mode_get_type ())
155 gst_wavpack_enc_correction_mode_get_type (void)
157 static GType qtype = 0;
160 static const GEnumValue values[] = {
161 {GST_WAVPACK_CORRECTION_MODE_OFF, "Create no correction file", "off"},
162 {GST_WAVPACK_CORRECTION_MODE_ON, "Create correction file", "on"},
163 {GST_WAVPACK_CORRECTION_MODE_OPTIMIZED,
164 "Create optimized correction file", "optimized"},
168 qtype = g_enum_register_static ("GstWavpackEncCorrectionMode", values);
175 GST_WAVPACK_JS_MODE_AUTO = 0,
176 GST_WAVPACK_JS_MODE_LEFT_RIGHT,
177 GST_WAVPACK_JS_MODE_MID_SIDE
180 #define GST_TYPE_WAVPACK_ENC_JOINT_STEREO_MODE (gst_wavpack_enc_joint_stereo_mode_get_type ())
182 gst_wavpack_enc_joint_stereo_mode_get_type (void)
184 static GType qtype = 0;
187 static const GEnumValue values[] = {
188 {GST_WAVPACK_JS_MODE_AUTO, "auto", "auto"},
189 {GST_WAVPACK_JS_MODE_LEFT_RIGHT, "left/right", "leftright"},
190 {GST_WAVPACK_JS_MODE_MID_SIDE, "mid/side", "midside"},
194 qtype = g_enum_register_static ("GstWavpackEncJSMode", values);
200 _do_init (GType object_type)
202 const GInterfaceInfo preset_interface_info = {
203 NULL, /* interface_init */
204 NULL, /* interface_finalize */
205 NULL /* interface_data */
208 g_type_add_interface_static (object_type, GST_TYPE_PRESET,
209 &preset_interface_info);
212 GST_BOILERPLATE_FULL (GstWavpackEnc, gst_wavpack_enc, GstElement,
213 GST_TYPE_ELEMENT, _do_init);
216 gst_wavpack_enc_base_init (gpointer klass)
218 GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
220 /* add pad templates */
221 gst_element_class_add_pad_template (element_class,
222 gst_static_pad_template_get (&sink_factory));
223 gst_element_class_add_pad_template (element_class,
224 gst_static_pad_template_get (&src_factory));
225 gst_element_class_add_pad_template (element_class,
226 gst_static_pad_template_get (&wvcsrc_factory));
228 /* set element details */
229 gst_element_class_set_details_simple (element_class, "Wavpack audio encoder",
230 "Codec/Encoder/Audio",
231 "Encodes audio with the Wavpack lossless/lossy audio codec",
232 "Sebastian Dröge <slomo@circular-chaos.org>");
237 gst_wavpack_enc_class_init (GstWavpackEncClass * klass)
239 GObjectClass *gobject_class = (GObjectClass *) klass;
240 GstElementClass *gstelement_class = (GstElementClass *) klass;
242 parent_class = g_type_class_peek_parent (klass);
244 /* set state change handler */
245 gstelement_class->change_state =
246 GST_DEBUG_FUNCPTR (gst_wavpack_enc_change_state);
248 /* set property handlers */
249 gobject_class->set_property = gst_wavpack_enc_set_property;
250 gobject_class->get_property = gst_wavpack_enc_get_property;
252 /* install all properties */
253 g_object_class_install_property (gobject_class, ARG_MODE,
254 g_param_spec_enum ("mode", "Encoding mode",
255 "Speed versus compression tradeoff.",
256 GST_TYPE_WAVPACK_ENC_MODE, GST_WAVPACK_ENC_MODE_DEFAULT,
257 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
258 g_object_class_install_property (gobject_class, ARG_BITRATE,
259 g_param_spec_uint ("bitrate", "Bitrate",
260 "Try to encode with this average bitrate (bits/sec). "
261 "This enables lossy encoding, values smaller than 24000 disable it again.",
262 0, 9600000, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
263 g_object_class_install_property (gobject_class, ARG_BITSPERSAMPLE,
264 g_param_spec_double ("bits-per-sample", "Bits per sample",
265 "Try to encode with this amount of bits per sample. "
266 "This enables lossy encoding, values smaller than 2.0 disable it again.",
267 0.0, 24.0, 0.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
268 g_object_class_install_property (gobject_class, ARG_CORRECTION_MODE,
269 g_param_spec_enum ("correction-mode", "Correction stream mode",
270 "Use this mode for the correction stream. Only works in lossy mode!",
271 GST_TYPE_WAVPACK_ENC_CORRECTION_MODE, GST_WAVPACK_CORRECTION_MODE_OFF,
272 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
273 g_object_class_install_property (gobject_class, ARG_MD5,
274 g_param_spec_boolean ("md5", "MD5",
275 "Store MD5 hash of raw samples within the file.", FALSE,
276 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
277 g_object_class_install_property (gobject_class, ARG_EXTRA_PROCESSING,
278 g_param_spec_uint ("extra-processing", "Extra processing",
279 "Use better but slower filters for better compression/quality.",
280 0, 6, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
281 g_object_class_install_property (gobject_class, ARG_JOINT_STEREO_MODE,
282 g_param_spec_enum ("joint-stereo-mode", "Joint-Stereo mode",
283 "Use this joint-stereo mode.", GST_TYPE_WAVPACK_ENC_JOINT_STEREO_MODE,
284 GST_WAVPACK_JS_MODE_AUTO,
285 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
289 gst_wavpack_enc_reset (GstWavpackEnc * enc)
291 /* close and free everything stream related if we already did something */
292 if (enc->wp_context) {
293 WavpackCloseFile (enc->wp_context);
294 enc->wp_context = NULL;
296 if (enc->wp_config) {
297 g_free (enc->wp_config);
298 enc->wp_config = NULL;
300 if (enc->first_block) {
301 g_free (enc->first_block);
302 enc->first_block = NULL;
304 enc->first_block_size = 0;
305 if (enc->md5_context) {
306 g_checksum_free (enc->md5_context);
307 enc->md5_context = NULL;
310 if (enc->pending_buffer) {
311 gst_buffer_unref (enc->pending_buffer);
312 enc->pending_buffer = NULL;
313 enc->pending_offset = 0;
316 /* reset the last returns to GST_FLOW_OK. This is only set to something else
317 * while WavpackPackSamples() or more specific gst_wavpack_enc_push_block()
318 * so not valid anymore */
319 enc->srcpad_last_return = enc->wvcsrcpad_last_return = GST_FLOW_OK;
321 /* reset stream information */
325 enc->channel_mask = 0;
326 enc->need_channel_remap = FALSE;
328 enc->timestamp_offset = GST_CLOCK_TIME_NONE;
329 enc->next_ts = GST_CLOCK_TIME_NONE;
333 gst_wavpack_enc_init (GstWavpackEnc * enc, GstWavpackEncClass * gclass)
335 enc->sinkpad = gst_pad_new_from_static_template (&sink_factory, "sink");
336 gst_pad_set_setcaps_function (enc->sinkpad,
337 GST_DEBUG_FUNCPTR (gst_wavpack_enc_sink_set_caps));
338 gst_pad_set_chain_function (enc->sinkpad,
339 GST_DEBUG_FUNCPTR (gst_wavpack_enc_chain));
340 gst_pad_set_event_function (enc->sinkpad,
341 GST_DEBUG_FUNCPTR (gst_wavpack_enc_sink_event));
342 gst_element_add_pad (GST_ELEMENT (enc), enc->sinkpad);
345 enc->srcpad = gst_pad_new_from_static_template (&src_factory, "src");
346 gst_element_add_pad (GST_ELEMENT (enc), enc->srcpad);
348 /* initialize object attributes */
349 enc->wp_config = NULL;
350 enc->wp_context = NULL;
351 enc->first_block = NULL;
352 enc->md5_context = NULL;
353 gst_wavpack_enc_reset (enc);
355 enc->wv_id.correction = FALSE;
356 enc->wv_id.wavpack_enc = enc;
357 enc->wv_id.passthrough = FALSE;
358 enc->wvc_id.correction = TRUE;
359 enc->wvc_id.wavpack_enc = enc;
360 enc->wvc_id.passthrough = FALSE;
362 /* set default values of params */
363 enc->mode = GST_WAVPACK_ENC_MODE_DEFAULT;
366 enc->correction_mode = GST_WAVPACK_CORRECTION_MODE_OFF;
368 enc->extra_processing = 0;
369 enc->joint_stereo_mode = GST_WAVPACK_JS_MODE_AUTO;
373 gst_wavpack_enc_sink_set_caps (GstPad * pad, GstCaps * caps)
375 GstWavpackEnc *enc = GST_WAVPACK_ENC (gst_pad_get_parent (pad));
376 GstStructure *structure = gst_caps_get_structure (caps, 0);
377 GstAudioChannelPosition *pos;
379 if (!gst_structure_get_int (structure, "channels", &enc->channels) ||
380 !gst_structure_get_int (structure, "rate", &enc->samplerate) ||
381 !gst_structure_get_int (structure, "depth", &enc->depth)) {
382 GST_ELEMENT_ERROR (enc, LIBRARY, INIT, (NULL),
383 ("got invalid caps: %" GST_PTR_FORMAT, caps));
384 gst_object_unref (enc);
388 pos = gst_audio_get_channel_positions (structure);
389 /* If one channel is NONE they'll be all undefined */
390 if (pos != NULL && pos[0] == GST_AUDIO_CHANNEL_POSITION_NONE) {
396 GST_ELEMENT_ERROR (enc, STREAM, FORMAT, (NULL),
397 ("input has no valid channel layout"));
399 gst_object_unref (enc);
404 gst_wavpack_get_channel_mask_from_positions (pos, enc->channels);
405 enc->need_channel_remap =
406 gst_wavpack_set_channel_mapping (pos, enc->channels,
407 enc->channel_mapping);
410 /* set fixed src pad caps now that we know what we will get */
411 caps = gst_caps_new_simple ("audio/x-wavpack",
412 "channels", G_TYPE_INT, enc->channels,
413 "rate", G_TYPE_INT, enc->samplerate,
414 "width", G_TYPE_INT, enc->depth, "framed", G_TYPE_BOOLEAN, TRUE, NULL);
416 if (!gst_wavpack_set_channel_layout (caps, enc->channel_mask))
417 GST_WARNING_OBJECT (enc, "setting channel layout failed");
419 if (!gst_pad_set_caps (enc->srcpad, caps)) {
420 GST_ELEMENT_ERROR (enc, LIBRARY, INIT, (NULL),
421 ("setting caps failed: %" GST_PTR_FORMAT, caps));
422 gst_caps_unref (caps);
423 gst_object_unref (enc);
426 gst_pad_use_fixed_caps (enc->srcpad);
428 gst_caps_unref (caps);
429 gst_object_unref (enc);
434 gst_wavpack_enc_set_wp_config (GstWavpackEnc * enc)
436 enc->wp_config = g_new0 (WavpackConfig, 1);
437 /* set general stream informations in the WavpackConfig */
438 enc->wp_config->bytes_per_sample = GST_ROUND_UP_8 (enc->depth) / 8;
439 enc->wp_config->bits_per_sample = enc->depth;
440 enc->wp_config->num_channels = enc->channels;
441 enc->wp_config->channel_mask = enc->channel_mask;
442 enc->wp_config->sample_rate = enc->samplerate;
445 * Set parameters in WavpackConfig
451 case GST_WAVPACK_ENC_MODE_VERY_FAST:
452 enc->wp_config->flags |= CONFIG_VERY_FAST_FLAG;
453 enc->wp_config->flags |= CONFIG_FAST_FLAG;
456 case GST_WAVPACK_ENC_MODE_FAST:
457 enc->wp_config->flags |= CONFIG_FAST_FLAG;
459 case GST_WAVPACK_ENC_MODE_DEFAULT:
461 case GST_WAVPACK_ENC_MODE_HIGH:
462 enc->wp_config->flags |= CONFIG_HIGH_FLAG;
464 #ifndef WAVPACK_OLD_API
465 case GST_WAVPACK_ENC_MODE_VERY_HIGH:
466 enc->wp_config->flags |= CONFIG_HIGH_FLAG;
467 enc->wp_config->flags |= CONFIG_VERY_HIGH_FLAG;
472 /* Bitrate, enables lossy mode */
474 enc->wp_config->flags |= CONFIG_HYBRID_FLAG;
475 enc->wp_config->flags |= CONFIG_BITRATE_KBPS;
476 enc->wp_config->bitrate = enc->bitrate / 1000.0;
477 } else if (enc->bps) {
478 enc->wp_config->flags |= CONFIG_HYBRID_FLAG;
479 enc->wp_config->bitrate = enc->bps;
482 /* Correction Mode, only in lossy mode */
483 if (enc->wp_config->flags & CONFIG_HYBRID_FLAG) {
484 if (enc->correction_mode > GST_WAVPACK_CORRECTION_MODE_OFF) {
485 GstCaps *caps = gst_caps_new_simple ("audio/x-wavpack-correction",
486 "framed", G_TYPE_BOOLEAN, TRUE, NULL);
489 gst_pad_new_from_static_template (&wvcsrc_factory, "wvcsrc");
491 /* try to add correction src pad, don't set correction mode on failure */
492 GST_DEBUG_OBJECT (enc, "Adding correction pad with caps %"
493 GST_PTR_FORMAT, caps);
494 if (!gst_pad_set_caps (enc->wvcsrcpad, caps)) {
495 enc->correction_mode = 0;
496 GST_WARNING_OBJECT (enc, "setting correction caps failed");
498 gst_pad_use_fixed_caps (enc->wvcsrcpad);
499 gst_pad_set_active (enc->wvcsrcpad, TRUE);
500 gst_element_add_pad (GST_ELEMENT (enc), enc->wvcsrcpad);
501 enc->wp_config->flags |= CONFIG_CREATE_WVC;
502 if (enc->correction_mode == GST_WAVPACK_CORRECTION_MODE_OPTIMIZED) {
503 enc->wp_config->flags |= CONFIG_OPTIMIZE_WVC;
506 gst_caps_unref (caps);
509 if (enc->correction_mode > GST_WAVPACK_CORRECTION_MODE_OFF) {
510 enc->correction_mode = 0;
511 GST_WARNING_OBJECT (enc, "setting correction mode only has "
512 "any effect if a bitrate is provided.");
515 gst_element_no_more_pads (GST_ELEMENT (enc));
517 /* MD5, setup MD5 context */
518 if ((enc->md5) && !(enc->md5_context)) {
519 enc->wp_config->flags |= CONFIG_MD5_CHECKSUM;
520 enc->md5_context = g_checksum_new (G_CHECKSUM_MD5);
523 /* Extra encode processing */
524 if (enc->extra_processing) {
525 enc->wp_config->flags |= CONFIG_EXTRA_MODE;
526 enc->wp_config->xmode = enc->extra_processing;
529 /* Joint stereo mode */
530 switch (enc->joint_stereo_mode) {
531 case GST_WAVPACK_JS_MODE_AUTO:
533 case GST_WAVPACK_JS_MODE_LEFT_RIGHT:
534 enc->wp_config->flags |= CONFIG_JOINT_OVERRIDE;
535 enc->wp_config->flags &= ~CONFIG_JOINT_STEREO;
537 case GST_WAVPACK_JS_MODE_MID_SIDE:
538 enc->wp_config->flags |= (CONFIG_JOINT_OVERRIDE | CONFIG_JOINT_STEREO);
544 gst_wavpack_enc_push_block (void *id, void *data, int32_t count)
546 GstWavpackEncWriteID *wid = (GstWavpackEncWriteID *) id;
547 GstWavpackEnc *enc = GST_WAVPACK_ENC (wid->wavpack_enc);
551 guchar *block = (guchar *) data;
553 pad = (wid->correction) ? enc->wvcsrcpad : enc->srcpad;
555 (wid->correction) ? &enc->wvcsrcpad_last_return : &enc->
558 *flow = gst_pad_alloc_buffer_and_set_caps (pad, GST_BUFFER_OFFSET_NONE,
559 count, GST_PAD_CAPS (pad), &buffer);
561 if (*flow != GST_FLOW_OK) {
562 GST_WARNING_OBJECT (enc, "flow on %s:%s = %s",
563 GST_DEBUG_PAD_NAME (pad), gst_flow_get_name (*flow));
567 g_memmove (GST_BUFFER_DATA (buffer), block, count);
569 if (count > sizeof (WavpackHeader) && memcmp (block, "wvpk", 4) == 0) {
570 /* if it's a Wavpack block set buffer timestamp and duration, etc */
573 GST_LOG_OBJECT (enc, "got %d bytes of encoded wavpack %sdata",
574 count, (wid->correction) ? "correction " : "");
576 gst_wavpack_read_header (&wph, block);
578 /* Only set when pushing the first buffer again, in that case
579 * we don't want to delay the buffer or push newsegment events
581 if (!wid->passthrough) {
582 /* Only push complete blocks */
583 if (enc->pending_buffer == NULL) {
584 enc->pending_buffer = buffer;
585 enc->pending_offset = wph.block_index;
586 } else if (enc->pending_offset == wph.block_index) {
587 enc->pending_buffer = gst_buffer_join (enc->pending_buffer, buffer);
589 GST_ERROR ("Got incomplete block, dropping");
590 gst_buffer_unref (enc->pending_buffer);
591 enc->pending_buffer = buffer;
592 enc->pending_offset = wph.block_index;
595 if (!(wph.flags & FINAL_BLOCK))
598 buffer = enc->pending_buffer;
599 enc->pending_buffer = NULL;
600 enc->pending_offset = 0;
602 /* if it's the first wavpack block, send a NEW_SEGMENT event */
603 if (wph.block_index == 0) {
604 gst_pad_push_event (pad,
605 gst_event_new_new_segment (FALSE,
606 1.0, GST_FORMAT_TIME, 0, GST_BUFFER_OFFSET_NONE, 0));
608 /* save header for later reference, so we can re-send it later on
609 * EOS with fixed up values for total sample count etc. */
610 if (enc->first_block == NULL && !wid->correction) {
612 g_memdup (GST_BUFFER_DATA (buffer), GST_BUFFER_SIZE (buffer));
613 enc->first_block_size = GST_BUFFER_SIZE (buffer);
618 /* set buffer timestamp, duration, offset, offset_end from
619 * the wavpack header */
620 GST_BUFFER_TIMESTAMP (buffer) = enc->timestamp_offset +
621 gst_util_uint64_scale_int (GST_SECOND, wph.block_index,
623 GST_BUFFER_DURATION (buffer) =
624 gst_util_uint64_scale_int (GST_SECOND, wph.block_samples,
626 GST_BUFFER_OFFSET (buffer) = wph.block_index;
627 GST_BUFFER_OFFSET_END (buffer) = wph.block_index + wph.block_samples;
629 /* if it's something else set no timestamp and duration on the buffer */
630 GST_DEBUG_OBJECT (enc, "got %d bytes of unknown data", count);
632 GST_BUFFER_TIMESTAMP (buffer) = GST_CLOCK_TIME_NONE;
633 GST_BUFFER_DURATION (buffer) = GST_CLOCK_TIME_NONE;
636 /* push the buffer and forward errors */
637 GST_DEBUG_OBJECT (enc, "pushing buffer with %d bytes",
638 GST_BUFFER_SIZE (buffer));
639 *flow = gst_pad_push (pad, buffer);
641 if (*flow != GST_FLOW_OK) {
642 GST_WARNING_OBJECT (enc, "flow on %s:%s = %s",
643 GST_DEBUG_PAD_NAME (pad), gst_flow_get_name (*flow));
651 gst_wavpack_enc_fix_channel_order (GstWavpackEnc * enc, gint32 * data,
657 for (i = 0; i < nsamples / enc->channels; i++) {
658 for (j = 0; j < enc->channels; j++) {
659 tmp[enc->channel_mapping[j]] = data[j];
661 for (j = 0; j < enc->channels; j++) {
664 data += enc->channels;
669 gst_wavpack_enc_chain (GstPad * pad, GstBuffer * buf)
671 GstWavpackEnc *enc = GST_WAVPACK_ENC (gst_pad_get_parent (pad));
672 uint32_t sample_count = GST_BUFFER_SIZE (buf) / 4;
675 /* reset the last returns to GST_FLOW_OK. This is only set to something else
676 * while WavpackPackSamples() or more specific gst_wavpack_enc_push_block()
677 * so not valid anymore */
678 enc->srcpad_last_return = enc->wvcsrcpad_last_return = GST_FLOW_OK;
680 GST_DEBUG ("got %u raw samples", sample_count);
682 /* check if we already have a valid WavpackContext, otherwise make one */
683 if (!enc->wp_context) {
684 /* create raw context */
686 WavpackOpenFileOutput (gst_wavpack_enc_push_block, &enc->wv_id,
687 (enc->correction_mode > 0) ? &enc->wvc_id : NULL);
688 if (!enc->wp_context) {
689 GST_ELEMENT_ERROR (enc, LIBRARY, INIT, (NULL),
690 ("error creating Wavpack context"));
691 gst_object_unref (enc);
692 gst_buffer_unref (buf);
693 return GST_FLOW_ERROR;
696 /* set the WavpackConfig according to our parameters */
697 gst_wavpack_enc_set_wp_config (enc);
699 /* set the configuration to the context now that we know everything
700 * and initialize the encoder */
701 if (!WavpackSetConfiguration (enc->wp_context,
702 enc->wp_config, (uint32_t) (-1))
703 || !WavpackPackInit (enc->wp_context)) {
704 GST_ELEMENT_ERROR (enc, LIBRARY, SETTINGS, (NULL),
705 ("error setting up wavpack encoding context"));
706 WavpackCloseFile (enc->wp_context);
707 gst_object_unref (enc);
708 gst_buffer_unref (buf);
709 return GST_FLOW_ERROR;
711 GST_DEBUG ("setup of encoding context successfull");
714 /* Save the timestamp of the first buffer. This will be later
715 * used as offset for all following buffers */
716 if (enc->timestamp_offset == GST_CLOCK_TIME_NONE) {
717 if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
718 enc->timestamp_offset = GST_BUFFER_TIMESTAMP (buf);
719 enc->next_ts = GST_BUFFER_TIMESTAMP (buf);
721 enc->timestamp_offset = 0;
726 /* Check if we have a continous stream, if not drop some samples or the buffer or
727 * insert some silence samples */
728 if (enc->next_ts != GST_CLOCK_TIME_NONE &&
729 GST_BUFFER_TIMESTAMP (buf) < enc->next_ts) {
730 guint64 diff = enc->next_ts - GST_BUFFER_TIMESTAMP (buf);
733 GST_WARNING_OBJECT (enc, "Buffer is older than previous "
734 "timestamp + duration (%" GST_TIME_FORMAT "< %" GST_TIME_FORMAT
735 "), cannot handle. Clipping buffer.",
736 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)),
737 GST_TIME_ARGS (enc->next_ts));
740 GST_CLOCK_TIME_TO_FRAMES (diff, enc->samplerate) * enc->channels * 2;
741 if (diff_bytes >= GST_BUFFER_SIZE (buf)) {
742 gst_buffer_unref (buf);
745 buf = gst_buffer_make_metadata_writable (buf);
746 GST_BUFFER_DATA (buf) += diff_bytes;
747 GST_BUFFER_SIZE (buf) -= diff_bytes;
749 GST_BUFFER_TIMESTAMP (buf) += diff;
750 if (GST_BUFFER_DURATION_IS_VALID (buf))
751 GST_BUFFER_DURATION (buf) -= diff;
754 /* Allow a diff of at most 5 ms */
755 if (enc->next_ts != GST_CLOCK_TIME_NONE
756 && GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
757 if (GST_BUFFER_TIMESTAMP (buf) != enc->next_ts &&
758 GST_BUFFER_TIMESTAMP (buf) - enc->next_ts > 5 * GST_MSECOND) {
759 GST_WARNING_OBJECT (enc,
760 "Discontinuity detected: %" G_GUINT64_FORMAT " > %" G_GUINT64_FORMAT,
761 GST_BUFFER_TIMESTAMP (buf) - enc->next_ts, 5 * GST_MSECOND);
763 WavpackFlushSamples (enc->wp_context);
764 enc->timestamp_offset += (GST_BUFFER_TIMESTAMP (buf) - enc->next_ts);
768 if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)
769 && GST_BUFFER_DURATION_IS_VALID (buf))
770 enc->next_ts = GST_BUFFER_TIMESTAMP (buf) + GST_BUFFER_DURATION (buf);
772 enc->next_ts = GST_CLOCK_TIME_NONE;
774 if (enc->need_channel_remap) {
775 buf = gst_buffer_make_writable (buf);
776 gst_wavpack_enc_fix_channel_order (enc, (gint32 *) GST_BUFFER_DATA (buf),
780 /* if we want to append the MD5 sum to the stream update it here
781 * with the current raw samples */
783 g_checksum_update (enc->md5_context, GST_BUFFER_DATA (buf),
784 GST_BUFFER_SIZE (buf));
787 /* encode and handle return values from encoding */
788 if (WavpackPackSamples (enc->wp_context, (int32_t *) GST_BUFFER_DATA (buf),
789 sample_count / enc->channels)) {
790 GST_DEBUG ("encoding samples successful");
793 if ((enc->srcpad_last_return == GST_FLOW_RESEND) ||
794 (enc->wvcsrcpad_last_return == GST_FLOW_RESEND)) {
795 ret = GST_FLOW_RESEND;
796 } else if ((enc->srcpad_last_return == GST_FLOW_OK) ||
797 (enc->wvcsrcpad_last_return == GST_FLOW_OK)) {
799 } else if ((enc->srcpad_last_return == GST_FLOW_NOT_LINKED) &&
800 (enc->wvcsrcpad_last_return == GST_FLOW_NOT_LINKED)) {
801 ret = GST_FLOW_NOT_LINKED;
802 } else if ((enc->srcpad_last_return == GST_FLOW_FLUSHING) &&
803 (enc->wvcsrcpad_last_return == GST_FLOW_FLUSHING)) {
804 ret = GST_FLOW_FLUSHING;
806 GST_ELEMENT_ERROR (enc, LIBRARY, ENCODE, (NULL),
807 ("encoding samples failed"));
808 ret = GST_FLOW_ERROR;
812 gst_buffer_unref (buf);
813 gst_object_unref (enc);
818 gst_wavpack_enc_rewrite_first_block (GstWavpackEnc * enc)
820 GstEvent *event = gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_BYTES,
821 0, GST_BUFFER_OFFSET_NONE, 0);
824 g_return_if_fail (enc);
825 g_return_if_fail (enc->first_block);
827 /* update the sample count in the first block */
828 WavpackUpdateNumSamples (enc->wp_context, enc->first_block);
830 /* try to seek to the beginning of the output */
831 ret = gst_pad_push_event (enc->srcpad, event);
833 /* try to rewrite the first block */
834 GST_DEBUG_OBJECT (enc, "rewriting first block ...");
835 enc->wv_id.passthrough = TRUE;
836 ret = gst_wavpack_enc_push_block (&enc->wv_id,
837 enc->first_block, enc->first_block_size);
838 enc->wv_id.passthrough = FALSE;
840 GST_WARNING_OBJECT (enc, "rewriting of first block failed. "
841 "Seeking to first block failed!");
846 gst_wavpack_enc_sink_event (GstPad * pad, GstEvent * event)
848 GstWavpackEnc *enc = GST_WAVPACK_ENC (gst_pad_get_parent (pad));
851 GST_DEBUG ("Received %s event on sinkpad", GST_EVENT_TYPE_NAME (event));
853 switch (GST_EVENT_TYPE (event)) {
855 /* Encode all remaining samples and flush them to the src pads */
856 WavpackFlushSamples (enc->wp_context);
858 /* Drop all remaining data, this is no complete block otherwise
859 * it would've been pushed already */
860 if (enc->pending_buffer) {
861 gst_buffer_unref (enc->pending_buffer);
862 enc->pending_buffer = NULL;
863 enc->pending_offset = 0;
866 /* write the MD5 sum if we have to write one */
867 if ((enc->md5) && (enc->md5_context)) {
868 guint8 md5_digest[16];
869 gsize digest_len = sizeof (md5_digest);
871 g_checksum_get_digest (enc->md5_context, md5_digest, &digest_len);
872 if (digest_len == sizeof (md5_digest))
873 WavpackStoreMD5Sum (enc->wp_context, md5_digest);
875 GST_WARNING_OBJECT (enc, "Calculating MD5 digest failed");
878 /* Try to rewrite the first frame with the correct sample number */
879 if (enc->first_block)
880 gst_wavpack_enc_rewrite_first_block (enc);
882 /* close the context if not already happened */
883 if (enc->wp_context) {
884 WavpackCloseFile (enc->wp_context);
885 enc->wp_context = NULL;
888 ret = gst_pad_event_default (pad, event);
890 case GST_EVENT_NEWSEGMENT:
891 if (enc->wp_context) {
892 GST_WARNING_OBJECT (enc, "got NEWSEGMENT after encoding "
895 /* drop NEWSEGMENT events, we create our own when pushing
896 * the first buffer to the pads */
897 gst_event_unref (event);
901 ret = gst_pad_event_default (pad, event);
905 gst_object_unref (enc);
909 static GstStateChangeReturn
910 gst_wavpack_enc_change_state (GstElement * element, GstStateChange transition)
912 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
913 GstWavpackEnc *enc = GST_WAVPACK_ENC (element);
915 switch (transition) {
916 case GST_STATE_CHANGE_NULL_TO_READY:
917 /* set the last returned GstFlowReturns of the two pads to GST_FLOW_OK
918 * as they're only set to something else in WavpackPackSamples() or more
919 * specific gst_wavpack_enc_push_block() and nothing happened there yet */
920 enc->srcpad_last_return = enc->wvcsrcpad_last_return = GST_FLOW_OK;
922 case GST_STATE_CHANGE_READY_TO_PAUSED:
924 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
929 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
931 switch (transition) {
932 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
934 case GST_STATE_CHANGE_PAUSED_TO_READY:
935 gst_wavpack_enc_reset (enc);
937 case GST_STATE_CHANGE_READY_TO_NULL:
947 gst_wavpack_enc_set_property (GObject * object, guint prop_id,
948 const GValue * value, GParamSpec * pspec)
950 GstWavpackEnc *enc = GST_WAVPACK_ENC (object);
954 enc->mode = g_value_get_enum (value);
957 guint val = g_value_get_uint (value);
959 if ((val >= 24000) && (val <= 9600000)) {
968 case ARG_BITSPERSAMPLE:{
969 gdouble val = g_value_get_double (value);
971 if ((val >= 2.0) && (val <= 24.0)) {
980 case ARG_CORRECTION_MODE:
981 enc->correction_mode = g_value_get_enum (value);
984 enc->md5 = g_value_get_boolean (value);
986 case ARG_EXTRA_PROCESSING:
987 enc->extra_processing = g_value_get_uint (value);
989 case ARG_JOINT_STEREO_MODE:
990 enc->joint_stereo_mode = g_value_get_enum (value);
993 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
999 gst_wavpack_enc_get_property (GObject * object, guint prop_id, GValue * value,
1002 GstWavpackEnc *enc = GST_WAVPACK_ENC (object);
1006 g_value_set_enum (value, enc->mode);
1009 if (enc->bps == 0.0) {
1010 g_value_set_uint (value, enc->bitrate);
1012 g_value_set_uint (value, 0);
1015 case ARG_BITSPERSAMPLE:
1016 if (enc->bitrate == 0) {
1017 g_value_set_double (value, enc->bps);
1019 g_value_set_double (value, 0.0);
1022 case ARG_CORRECTION_MODE:
1023 g_value_set_enum (value, enc->correction_mode);
1026 g_value_set_boolean (value, enc->md5);
1028 case ARG_EXTRA_PROCESSING:
1029 g_value_set_uint (value, enc->extra_processing);
1031 case ARG_JOINT_STEREO_MODE:
1032 g_value_set_enum (value, enc->joint_stereo_mode);
1035 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1041 gst_wavpack_enc_plugin_init (GstPlugin * plugin)
1043 if (!gst_element_register (plugin, "wavpackenc",
1044 GST_RANK_NONE, GST_TYPE_WAVPACK_ENC))
1047 GST_DEBUG_CATEGORY_INIT (gst_wavpack_enc_debug, "wavpack_enc", 0,