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
26 * WavpackEnc encodes raw audio into a framed Wavpack stream.
27 * <ulink url="http://www.wavpack.com/">Wavpack</ulink> is an open-source
28 * audio codec that features both lossless and lossy encoding.
29 * <title>Example launch line</title>
32 * gst-launch audiotestsrc num-buffers=500 ! audioconvert ! wavpackenc ! filesink location=sinewave.wv
34 * This pipeline encodes audio from audiotestsrc into a Wavpack file. The audioconvert element is needed
35 * as the Wavpack encoder only accepts input with 32 bit width (and every depth between 1 and 32 bits).
39 * gst-launch cdda://1 ! audioconvert ! wavpackenc ! filesink location=track1.wv
41 * This pipeline encodes audio from an audio CD into a Wavpack file using
42 * lossless encoding (the file output will be fairly large).
46 * gst-launch cdda://1 ! audioconvert ! wavpackenc bitrate=128000 ! filesink location=track1.wv
48 * This pipeline encodes audio from an audio CD into a Wavpack file using
49 * lossy encoding at a certain bitrate (the file will be fairly small).
55 * TODO: - add 32 bit float mode. CONFIG_FLOAT_DATA
60 #include <glib/gprintf.h>
62 #include <wavpack/wavpack.h>
63 #include "gstwavpackenc.h"
64 #include "gstwavpackcommon.h"
67 static GstFlowReturn gst_wavpack_enc_chain (GstPad * pad, GstBuffer * buffer);
68 static gboolean gst_wavpack_enc_sink_set_caps (GstPad * pad, GstCaps * caps);
69 static int gst_wavpack_enc_push_block (void *id, void *data, int32_t count);
70 static gboolean gst_wavpack_enc_sink_event (GstPad * pad, GstEvent * event);
71 static GstStateChangeReturn gst_wavpack_enc_change_state (GstElement * element,
72 GstStateChange transition);
73 static void gst_wavpack_enc_set_property (GObject * object, guint prop_id,
74 const GValue * value, GParamSpec * pspec);
75 static void gst_wavpack_enc_get_property (GObject * object, guint prop_id,
76 GValue * value, GParamSpec * pspec);
90 GST_DEBUG_CATEGORY_STATIC (gst_wavpack_enc_debug);
91 #define GST_CAT_DEFAULT gst_wavpack_enc_debug
93 static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
96 GST_STATIC_CAPS ("audio/x-raw-int, "
98 "depth = (int) [ 1, 32], "
99 "endianness = (int) BYTE_ORDER, "
100 "channels = (int) [ 1, 8 ], "
101 "rate = (int) [ 6000, 192000 ]," "signed = (boolean) TRUE")
104 static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
107 GST_STATIC_CAPS ("audio/x-wavpack, "
108 "width = (int) [ 1, 32 ], "
109 "channels = (int) [ 1, 2 ], "
110 "rate = (int) [ 6000, 192000 ], " "framed = (boolean) TRUE")
113 static GstStaticPadTemplate wvcsrc_factory = GST_STATIC_PAD_TEMPLATE ("wvcsrc",
116 GST_STATIC_CAPS ("audio/x-wavpack-correction, " "framed = (boolean) TRUE")
121 GST_WAVPACK_ENC_MODE_VERY_FAST = 0,
122 GST_WAVPACK_ENC_MODE_FAST,
123 GST_WAVPACK_ENC_MODE_DEFAULT,
124 GST_WAVPACK_ENC_MODE_HIGH,
125 GST_WAVPACK_ENC_MODE_VERY_HIGH
128 #define GST_TYPE_WAVPACK_ENC_MODE (gst_wavpack_enc_mode_get_type ())
130 gst_wavpack_enc_mode_get_type (void)
132 static GType qtype = 0;
135 static const GEnumValue values[] = {
137 /* Very Fast Compression is not supported yet, but will be supported
138 * in future wavpack versions */
139 {GST_WAVPACK_ENC_MODE_VERY_FAST, "Very Fast Compression", "veryfast"},
141 {GST_WAVPACK_ENC_MODE_FAST, "Fast Compression", "fast"},
142 {GST_WAVPACK_ENC_MODE_DEFAULT, "Normal Compression", "normal"},
143 {GST_WAVPACK_ENC_MODE_HIGH, "High Compression", "high"},
144 #ifndef WAVPACK_OLD_API
145 {GST_WAVPACK_ENC_MODE_VERY_HIGH, "Very High Compression", "veryhigh"},
150 qtype = g_enum_register_static ("GstWavpackEncMode", values);
157 GST_WAVPACK_CORRECTION_MODE_OFF = 0,
158 GST_WAVPACK_CORRECTION_MODE_ON,
159 GST_WAVPACK_CORRECTION_MODE_OPTIMIZED
162 #define GST_TYPE_WAVPACK_ENC_CORRECTION_MODE (gst_wavpack_enc_correction_mode_get_type ())
164 gst_wavpack_enc_correction_mode_get_type (void)
166 static GType qtype = 0;
169 static const GEnumValue values[] = {
170 {GST_WAVPACK_CORRECTION_MODE_OFF, "Create no correction file", "off"},
171 {GST_WAVPACK_CORRECTION_MODE_ON, "Create correction file", "on"},
172 {GST_WAVPACK_CORRECTION_MODE_OPTIMIZED,
173 "Create optimized correction file", "optimized"},
177 qtype = g_enum_register_static ("GstWavpackEncCorrectionMode", values);
184 GST_WAVPACK_JS_MODE_AUTO = 0,
185 GST_WAVPACK_JS_MODE_LEFT_RIGHT,
186 GST_WAVPACK_JS_MODE_MID_SIDE
189 #define GST_TYPE_WAVPACK_ENC_JOINT_STEREO_MODE (gst_wavpack_enc_joint_stereo_mode_get_type ())
191 gst_wavpack_enc_joint_stereo_mode_get_type (void)
193 static GType qtype = 0;
196 static const GEnumValue values[] = {
197 {GST_WAVPACK_JS_MODE_AUTO, "auto", "auto"},
198 {GST_WAVPACK_JS_MODE_LEFT_RIGHT, "left/right", "leftright"},
199 {GST_WAVPACK_JS_MODE_MID_SIDE, "mid/side", "midside"},
203 qtype = g_enum_register_static ("GstWavpackEncJSMode", values);
208 GST_BOILERPLATE (GstWavpackEnc, gst_wavpack_enc, GstElement, GST_TYPE_ELEMENT);
211 gst_wavpack_enc_base_init (gpointer klass)
213 GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
215 /* add pad templates */
216 gst_element_class_add_pad_template (element_class,
217 gst_static_pad_template_get (&sink_factory));
218 gst_element_class_add_pad_template (element_class,
219 gst_static_pad_template_get (&src_factory));
220 gst_element_class_add_pad_template (element_class,
221 gst_static_pad_template_get (&wvcsrc_factory));
223 /* set element details */
224 gst_element_class_set_details_simple (element_class, "Wavpack audio encoder",
225 "Codec/Encoder/Audio",
226 "Encodes audio with the Wavpack lossless/lossy audio codec",
227 "Sebastian Dröge <slomo@circular-chaos.org>");
232 gst_wavpack_enc_class_init (GstWavpackEncClass * klass)
234 GObjectClass *gobject_class = (GObjectClass *) klass;
235 GstElementClass *gstelement_class = (GstElementClass *) klass;
237 parent_class = g_type_class_peek_parent (klass);
239 /* set state change handler */
240 gstelement_class->change_state =
241 GST_DEBUG_FUNCPTR (gst_wavpack_enc_change_state);
243 /* set property handlers */
244 gobject_class->set_property =
245 GST_DEBUG_FUNCPTR (gst_wavpack_enc_set_property);
246 gobject_class->get_property =
247 GST_DEBUG_FUNCPTR (gst_wavpack_enc_get_property);
249 /* install all properties */
250 g_object_class_install_property (gobject_class, ARG_MODE,
251 g_param_spec_enum ("mode", "Encoding mode",
252 "Speed versus compression tradeoff.",
253 GST_TYPE_WAVPACK_ENC_MODE, GST_WAVPACK_ENC_MODE_DEFAULT,
255 g_object_class_install_property (gobject_class, ARG_BITRATE,
256 g_param_spec_uint ("bitrate", "Bitrate",
257 "Try to encode with this average bitrate (bits/sec). "
258 "This enables lossy encoding, values smaller than 24000 disable it again.",
259 0, 9600000, 0, G_PARAM_READWRITE));
260 g_object_class_install_property (gobject_class, ARG_BITSPERSAMPLE,
261 g_param_spec_double ("bits-per-sample", "Bits per sample",
262 "Try to encode with this amount of bits per sample. "
263 "This enables lossy encoding, values smaller than 2.0 disable it again.",
264 0.0, 24.0, 0.0, G_PARAM_READWRITE));
265 g_object_class_install_property (gobject_class, ARG_CORRECTION_MODE,
266 g_param_spec_enum ("correction-mode", "Correction stream mode",
267 "Use this mode for the correction stream. Only works in lossy mode!",
268 GST_TYPE_WAVPACK_ENC_CORRECTION_MODE, GST_WAVPACK_CORRECTION_MODE_OFF,
270 g_object_class_install_property (gobject_class, ARG_MD5,
271 g_param_spec_boolean ("md5", "MD5",
272 "Store MD5 hash of raw samples within the file.", FALSE,
274 g_object_class_install_property (gobject_class, ARG_EXTRA_PROCESSING,
275 g_param_spec_uint ("extra-processing", "Extra processing",
276 "Use better but slower filters for better compression/quality.",
277 0, 6, 0, G_PARAM_READWRITE));
278 g_object_class_install_property (gobject_class, ARG_JOINT_STEREO_MODE,
279 g_param_spec_enum ("joint-stereo-mode", "Joint-Stereo mode",
280 "Use this joint-stereo mode.", GST_TYPE_WAVPACK_ENC_JOINT_STEREO_MODE,
281 GST_WAVPACK_JS_MODE_AUTO, G_PARAM_READWRITE));
285 gst_wavpack_enc_reset (GstWavpackEnc * enc)
287 /* close and free everything stream related if we already did something */
288 if (enc->wp_context) {
289 WavpackCloseFile (enc->wp_context);
290 enc->wp_context = NULL;
292 if (enc->wp_config) {
293 g_free (enc->wp_config);
294 enc->wp_config = NULL;
296 if (enc->first_block) {
297 g_free (enc->first_block);
298 enc->first_block = NULL;
300 enc->first_block_size = 0;
301 if (enc->md5_context) {
302 g_free (enc->md5_context);
303 enc->md5_context = NULL;
306 if (enc->pending_buffer) {
307 gst_buffer_unref (enc->pending_buffer);
308 enc->pending_buffer = NULL;
309 enc->pending_offset = 0;
312 /* reset the last returns to GST_FLOW_OK. This is only set to something else
313 * while WavpackPackSamples() or more specific gst_wavpack_enc_push_block()
314 * so not valid anymore */
315 enc->srcpad_last_return = enc->wvcsrcpad_last_return = GST_FLOW_OK;
317 /* reset stream information */
321 enc->channel_mask = 0;
322 enc->need_channel_remap = FALSE;
326 gst_wavpack_enc_init (GstWavpackEnc * enc, GstWavpackEncClass * gclass)
328 enc->sinkpad = gst_pad_new_from_static_template (&sink_factory, "sink");
329 gst_pad_set_setcaps_function (enc->sinkpad,
330 GST_DEBUG_FUNCPTR (gst_wavpack_enc_sink_set_caps));
331 gst_pad_set_chain_function (enc->sinkpad,
332 GST_DEBUG_FUNCPTR (gst_wavpack_enc_chain));
333 gst_pad_set_event_function (enc->sinkpad,
334 GST_DEBUG_FUNCPTR (gst_wavpack_enc_sink_event));
335 gst_element_add_pad (GST_ELEMENT (enc), enc->sinkpad);
338 enc->srcpad = gst_pad_new_from_static_template (&src_factory, "src");
339 gst_element_add_pad (GST_ELEMENT (enc), enc->srcpad);
341 /* initialize object attributes */
342 enc->wp_config = NULL;
343 enc->wp_context = NULL;
344 enc->first_block = NULL;
345 enc->md5_context = NULL;
346 gst_wavpack_enc_reset (enc);
348 enc->wv_id.correction = FALSE;
349 enc->wv_id.wavpack_enc = enc;
350 enc->wv_id.passthrough = FALSE;
351 enc->wvc_id.correction = TRUE;
352 enc->wvc_id.wavpack_enc = enc;
353 enc->wvc_id.passthrough = FALSE;
355 /* set default values of params */
356 enc->mode = GST_WAVPACK_ENC_MODE_DEFAULT;
359 enc->correction_mode = GST_WAVPACK_CORRECTION_MODE_OFF;
361 enc->extra_processing = 0;
362 enc->joint_stereo_mode = GST_WAVPACK_JS_MODE_AUTO;
366 gst_wavpack_enc_sink_set_caps (GstPad * pad, GstCaps * caps)
368 GstWavpackEnc *enc = GST_WAVPACK_ENC (gst_pad_get_parent (pad));
369 GstStructure *structure = gst_caps_get_structure (caps, 0);
370 GstAudioChannelPosition *pos;
372 if (!gst_structure_get_int (structure, "channels", &enc->channels) ||
373 !gst_structure_get_int (structure, "rate", &enc->samplerate) ||
374 !gst_structure_get_int (structure, "depth", &enc->depth)) {
375 GST_ELEMENT_ERROR (enc, LIBRARY, INIT, (NULL),
376 ("got invalid caps: %" GST_PTR_FORMAT, caps));
377 gst_object_unref (enc);
381 pos = gst_audio_get_channel_positions (structure);
382 /* If one channel is NONE they'll be all undefined */
383 if (pos != NULL && pos[0] == GST_AUDIO_CHANNEL_POSITION_NONE) {
389 GST_ELEMENT_ERROR (enc, STREAM, FORMAT, (NULL),
390 ("input has no valid channel layout"));
392 gst_object_unref (enc);
397 gst_wavpack_get_channel_mask_from_positions (pos, enc->channels);
398 enc->need_channel_remap =
399 gst_wavpack_set_channel_mapping (pos, enc->channels,
400 enc->channel_mapping);
403 /* set fixed src pad caps now that we know what we will get */
404 caps = gst_caps_new_simple ("audio/x-wavpack",
405 "channels", G_TYPE_INT, enc->channels,
406 "rate", G_TYPE_INT, enc->samplerate,
407 "width", G_TYPE_INT, enc->depth, "framed", G_TYPE_BOOLEAN, TRUE, NULL);
409 if (!gst_wavpack_set_channel_layout (caps, enc->channel_mask))
410 GST_WARNING_OBJECT (enc, "setting channel layout failed");
412 if (!gst_pad_set_caps (enc->srcpad, caps)) {
413 GST_ELEMENT_ERROR (enc, LIBRARY, INIT, (NULL),
414 ("setting caps failed: %" GST_PTR_FORMAT, caps));
415 gst_caps_unref (caps);
416 gst_object_unref (enc);
419 gst_pad_use_fixed_caps (enc->srcpad);
421 gst_caps_unref (caps);
422 gst_object_unref (enc);
427 gst_wavpack_enc_set_wp_config (GstWavpackEnc * enc)
429 enc->wp_config = g_new0 (WavpackConfig, 1);
430 /* set general stream informations in the WavpackConfig */
431 enc->wp_config->bytes_per_sample = GST_ROUND_UP_8 (enc->depth) / 8;
432 enc->wp_config->bits_per_sample = enc->depth;
433 enc->wp_config->num_channels = enc->channels;
434 enc->wp_config->channel_mask = enc->channel_mask;
435 enc->wp_config->sample_rate = enc->samplerate;
438 * Set parameters in WavpackConfig
444 case GST_WAVPACK_ENC_MODE_VERY_FAST:
445 enc->wp_config->flags |= CONFIG_VERY_FAST_FLAG;
446 enc->wp_config->flags |= CONFIG_FAST_FLAG;
449 case GST_WAVPACK_ENC_MODE_FAST:
450 enc->wp_config->flags |= CONFIG_FAST_FLAG;
452 case GST_WAVPACK_ENC_MODE_DEFAULT:
454 case GST_WAVPACK_ENC_MODE_HIGH:
455 enc->wp_config->flags |= CONFIG_HIGH_FLAG;
457 #ifndef WAVPACK_OLD_API
458 case GST_WAVPACK_ENC_MODE_VERY_HIGH:
459 enc->wp_config->flags |= CONFIG_HIGH_FLAG;
460 enc->wp_config->flags |= CONFIG_VERY_HIGH_FLAG;
465 /* Bitrate, enables lossy mode */
467 enc->wp_config->flags |= CONFIG_HYBRID_FLAG;
468 enc->wp_config->flags |= CONFIG_BITRATE_KBPS;
469 enc->wp_config->bitrate = enc->bitrate / 1000.0;
470 } else if (enc->bps) {
471 enc->wp_config->flags |= CONFIG_HYBRID_FLAG;
472 enc->wp_config->bitrate = enc->bps;
475 /* Correction Mode, only in lossy mode */
476 if (enc->wp_config->flags & CONFIG_HYBRID_FLAG) {
477 if (enc->correction_mode > GST_WAVPACK_CORRECTION_MODE_OFF) {
479 gst_pad_new_from_static_template (&wvcsrc_factory, "wvcsrc");
481 /* try to add correction src pad, don't set correction mode on failure */
482 GstCaps *caps = gst_caps_new_simple ("audio/x-wavpack-correction",
483 "framed", G_TYPE_BOOLEAN, TRUE, NULL);
485 GST_DEBUG_OBJECT (enc, "Adding correction pad with caps %"
486 GST_PTR_FORMAT, caps);
487 if (!gst_pad_set_caps (enc->wvcsrcpad, caps)) {
488 enc->correction_mode = 0;
489 GST_WARNING_OBJECT (enc, "setting correction caps failed");
491 gst_pad_use_fixed_caps (enc->wvcsrcpad);
492 gst_pad_set_active (enc->wvcsrcpad, TRUE);
493 gst_element_add_pad (GST_ELEMENT (enc), enc->wvcsrcpad);
494 enc->wp_config->flags |= CONFIG_CREATE_WVC;
495 if (enc->correction_mode == GST_WAVPACK_CORRECTION_MODE_OPTIMIZED) {
496 enc->wp_config->flags |= CONFIG_OPTIMIZE_WVC;
499 gst_caps_unref (caps);
502 if (enc->correction_mode > GST_WAVPACK_CORRECTION_MODE_OFF) {
503 enc->correction_mode = 0;
504 GST_WARNING_OBJECT (enc, "setting correction mode only has "
505 "any effect if a bitrate is provided.");
508 gst_element_no_more_pads (GST_ELEMENT (enc));
510 /* MD5, setup MD5 context */
511 if ((enc->md5) && !(enc->md5_context)) {
512 enc->wp_config->flags |= CONFIG_MD5_CHECKSUM;
513 enc->md5_context = g_new0 (MD5_CTX, 1);
514 MD5Init (enc->md5_context);
517 /* Extra encode processing */
518 if (enc->extra_processing) {
519 enc->wp_config->flags |= CONFIG_EXTRA_MODE;
520 enc->wp_config->xmode = enc->extra_processing;
523 /* Joint stereo mode */
524 switch (enc->joint_stereo_mode) {
525 case GST_WAVPACK_JS_MODE_AUTO:
527 case GST_WAVPACK_JS_MODE_LEFT_RIGHT:
528 enc->wp_config->flags |= CONFIG_JOINT_OVERRIDE;
529 enc->wp_config->flags &= ~CONFIG_JOINT_STEREO;
531 case GST_WAVPACK_JS_MODE_MID_SIDE:
532 enc->wp_config->flags |= (CONFIG_JOINT_OVERRIDE | CONFIG_JOINT_STEREO);
538 gst_wavpack_enc_push_block (void *id, void *data, int32_t count)
540 GstWavpackEncWriteID *wid = (GstWavpackEncWriteID *) id;
541 GstWavpackEnc *enc = GST_WAVPACK_ENC (wid->wavpack_enc);
545 guchar *block = (guchar *) data;
547 pad = (wid->correction) ? enc->wvcsrcpad : enc->srcpad;
549 (wid->correction) ? &enc->wvcsrcpad_last_return : &enc->
552 *flow = gst_pad_alloc_buffer_and_set_caps (pad, GST_BUFFER_OFFSET_NONE,
553 count, GST_PAD_CAPS (pad), &buffer);
555 if (*flow != GST_FLOW_OK) {
556 GST_WARNING_OBJECT (enc, "flow on %s:%s = %s",
557 GST_DEBUG_PAD_NAME (pad), gst_flow_get_name (*flow));
561 g_memmove (GST_BUFFER_DATA (buffer), block, count);
563 if (count > sizeof (WavpackHeader) && memcmp (block, "wvpk", 4) == 0) {
564 /* if it's a Wavpack block set buffer timestamp and duration, etc */
567 GST_LOG_OBJECT (enc, "got %d bytes of encoded wavpack %sdata",
568 count, (wid->correction) ? "correction " : "");
570 gst_wavpack_read_header (&wph, block);
572 /* Only set when pushing the first buffer again, in that case
573 * we don't want to delay the buffer or push newsegment events
575 if (!wid->passthrough) {
576 /* Only push complete blocks */
577 if (enc->pending_buffer == NULL) {
578 enc->pending_buffer = buffer;
579 enc->pending_offset = wph.block_index;
580 } else if (enc->pending_offset == wph.block_index) {
581 enc->pending_buffer = gst_buffer_join (enc->pending_buffer, buffer);
583 GST_ERROR ("Got incomplete block, dropping");
584 gst_buffer_unref (enc->pending_buffer);
585 enc->pending_buffer = buffer;
586 enc->pending_offset = wph.block_index;
589 if (!(wph.flags & FINAL_BLOCK))
592 buffer = enc->pending_buffer;
593 enc->pending_buffer = NULL;
594 enc->pending_offset = 0;
596 /* if it's the first wavpack block, send a NEW_SEGMENT event */
597 if (wph.block_index == 0) {
598 gst_pad_push_event (pad,
599 gst_event_new_new_segment (FALSE,
600 1.0, GST_FORMAT_TIME, 0, GST_BUFFER_OFFSET_NONE, 0));
602 /* save header for later reference, so we can re-send it later on
603 * EOS with fixed up values for total sample count etc. */
604 if (enc->first_block == NULL && !wid->correction) {
606 g_memdup (GST_BUFFER_DATA (buffer), GST_BUFFER_SIZE (buffer));
607 enc->first_block_size = GST_BUFFER_SIZE (buffer);
612 /* set buffer timestamp, duration, offset, offset_end from
613 * the wavpack header */
614 GST_BUFFER_TIMESTAMP (buffer) =
615 gst_util_uint64_scale_int (GST_SECOND, wph.block_index,
617 GST_BUFFER_DURATION (buffer) =
618 gst_util_uint64_scale_int (GST_SECOND, wph.block_samples,
620 GST_BUFFER_OFFSET (buffer) = wph.block_index;
621 GST_BUFFER_OFFSET_END (buffer) = wph.block_index + wph.block_samples;
623 /* if it's something else set no timestamp and duration on the buffer */
624 GST_DEBUG_OBJECT (enc, "got %d bytes of unknown data", count);
626 GST_BUFFER_TIMESTAMP (buffer) = GST_CLOCK_TIME_NONE;
627 GST_BUFFER_DURATION (buffer) = GST_CLOCK_TIME_NONE;
630 /* push the buffer and forward errors */
631 GST_DEBUG_OBJECT (enc, "pushing buffer with %d bytes",
632 GST_BUFFER_SIZE (buffer));
633 *flow = gst_pad_push (pad, buffer);
635 if (*flow != GST_FLOW_OK) {
636 GST_WARNING_OBJECT (enc, "flow on %s:%s = %s",
637 GST_DEBUG_PAD_NAME (pad), gst_flow_get_name (*flow));
645 gst_wavpack_enc_fix_channel_order (GstWavpackEnc * enc, gint32 * data,
651 for (i = 0; i < nsamples / enc->channels; i++) {
652 for (j = 0; j < enc->channels; j++) {
653 tmp[enc->channel_mapping[j]] = data[j];
655 for (j = 0; j < enc->channels; j++) {
658 data += enc->channels;
663 gst_wavpack_enc_chain (GstPad * pad, GstBuffer * buf)
665 GstWavpackEnc *enc = GST_WAVPACK_ENC (gst_pad_get_parent (pad));
666 uint32_t sample_count = GST_BUFFER_SIZE (buf) / 4;
669 /* reset the last returns to GST_FLOW_OK. This is only set to something else
670 * while WavpackPackSamples() or more specific gst_wavpack_enc_push_block()
671 * so not valid anymore */
672 enc->srcpad_last_return = enc->wvcsrcpad_last_return = GST_FLOW_OK;
674 GST_DEBUG ("got %u raw samples", sample_count);
676 /* check if we already have a valid WavpackContext, otherwise make one */
677 if (!enc->wp_context) {
678 /* create raw context */
680 WavpackOpenFileOutput (gst_wavpack_enc_push_block, &enc->wv_id,
681 (enc->correction_mode > 0) ? &enc->wvc_id : NULL);
682 if (!enc->wp_context) {
683 GST_ELEMENT_ERROR (enc, LIBRARY, INIT, (NULL),
684 ("error creating Wavpack context"));
685 gst_object_unref (enc);
686 gst_buffer_unref (buf);
687 return GST_FLOW_ERROR;
690 /* set the WavpackConfig according to our parameters */
691 gst_wavpack_enc_set_wp_config (enc);
693 /* set the configuration to the context now that we know everything
694 * and initialize the encoder */
695 if (!WavpackSetConfiguration (enc->wp_context,
696 enc->wp_config, (uint32_t) (-1))
697 || !WavpackPackInit (enc->wp_context)) {
698 GST_ELEMENT_ERROR (enc, LIBRARY, SETTINGS, (NULL),
699 ("error setting up wavpack encoding context"));
700 WavpackCloseFile (enc->wp_context);
701 gst_object_unref (enc);
702 gst_buffer_unref (buf);
703 return GST_FLOW_ERROR;
705 GST_DEBUG ("setup of encoding context successfull");
708 if (enc->need_channel_remap) {
709 buf = gst_buffer_make_writable (buf);
710 gst_wavpack_enc_fix_channel_order (enc, (gint32 *) GST_BUFFER_DATA (buf),
714 /* if we want to append the MD5 sum to the stream update it here
715 * with the current raw samples */
717 MD5Update (enc->md5_context, GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
720 /* encode and handle return values from encoding */
721 if (WavpackPackSamples (enc->wp_context, (int32_t *) GST_BUFFER_DATA (buf),
722 sample_count / enc->channels)) {
723 GST_DEBUG ("encoding samples successful");
726 if ((enc->srcpad_last_return == GST_FLOW_RESEND) ||
727 (enc->wvcsrcpad_last_return == GST_FLOW_RESEND)) {
728 ret = GST_FLOW_RESEND;
729 } else if ((enc->srcpad_last_return == GST_FLOW_OK) ||
730 (enc->wvcsrcpad_last_return == GST_FLOW_OK)) {
732 } else if ((enc->srcpad_last_return == GST_FLOW_NOT_LINKED) &&
733 (enc->wvcsrcpad_last_return == GST_FLOW_NOT_LINKED)) {
734 ret = GST_FLOW_NOT_LINKED;
735 } else if ((enc->srcpad_last_return == GST_FLOW_WRONG_STATE) &&
736 (enc->wvcsrcpad_last_return == GST_FLOW_WRONG_STATE)) {
737 ret = GST_FLOW_WRONG_STATE;
739 GST_ELEMENT_ERROR (enc, LIBRARY, ENCODE, (NULL),
740 ("encoding samples failed"));
741 ret = GST_FLOW_ERROR;
745 gst_buffer_unref (buf);
746 gst_object_unref (enc);
751 gst_wavpack_enc_rewrite_first_block (GstWavpackEnc * enc)
753 GstEvent *event = gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_BYTES,
754 0, GST_BUFFER_OFFSET_NONE, 0);
757 g_return_if_fail (enc);
758 g_return_if_fail (enc->first_block);
760 /* update the sample count in the first block */
761 WavpackUpdateNumSamples (enc->wp_context, enc->first_block);
763 /* try to seek to the beginning of the output */
764 ret = gst_pad_push_event (enc->srcpad, event);
766 /* try to rewrite the first block */
767 GST_DEBUG_OBJECT (enc, "rewriting first block ...");
768 enc->wv_id.passthrough = TRUE;
769 ret = gst_wavpack_enc_push_block (&enc->wv_id,
770 enc->first_block, enc->first_block_size);
771 enc->wv_id.passthrough = FALSE;
773 GST_WARNING_OBJECT (enc, "rewriting of first block failed. "
774 "Seeking to first block failed!");
779 gst_wavpack_enc_sink_event (GstPad * pad, GstEvent * event)
781 GstWavpackEnc *enc = GST_WAVPACK_ENC (gst_pad_get_parent (pad));
784 GST_DEBUG ("Received %s event on sinkpad", GST_EVENT_TYPE_NAME (event));
786 switch (GST_EVENT_TYPE (event)) {
788 /* Encode all remaining samples and flush them to the src pads */
789 WavpackFlushSamples (enc->wp_context);
791 /* Drop all remaining data, this is no complete block otherwise
792 * it would've been pushed already */
793 if (enc->pending_buffer) {
794 gst_object_unref (enc->pending_buffer);
795 enc->pending_buffer = NULL;
796 enc->pending_offset = 0;
799 /* write the MD5 sum if we have to write one */
800 if ((enc->md5) && (enc->md5_context)) {
801 guchar md5_digest[16];
803 MD5Final (md5_digest, enc->md5_context);
804 WavpackStoreMD5Sum (enc->wp_context, md5_digest);
807 /* Try to rewrite the first frame with the correct sample number */
808 if (enc->first_block)
809 gst_wavpack_enc_rewrite_first_block (enc);
811 /* close the context if not already happened */
812 if (enc->wp_context) {
813 WavpackCloseFile (enc->wp_context);
814 enc->wp_context = NULL;
817 ret = gst_pad_event_default (pad, event);
819 case GST_EVENT_NEWSEGMENT:
820 if (enc->wp_context) {
821 GST_WARNING_OBJECT (enc, "got NEWSEGMENT after encoding "
824 /* drop NEWSEGMENT events, we create our own when pushing
825 * the first buffer to the pads */
826 gst_event_unref (event);
830 ret = gst_pad_event_default (pad, event);
834 gst_object_unref (enc);
838 static GstStateChangeReturn
839 gst_wavpack_enc_change_state (GstElement * element, GstStateChange transition)
841 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
842 GstWavpackEnc *enc = GST_WAVPACK_ENC (element);
844 switch (transition) {
845 case GST_STATE_CHANGE_NULL_TO_READY:
846 /* set the last returned GstFlowReturns of the two pads to GST_FLOW_OK
847 * as they're only set to something else in WavpackPackSamples() or more
848 * specific gst_wavpack_enc_push_block() and nothing happened there yet */
849 enc->srcpad_last_return = enc->wvcsrcpad_last_return = GST_FLOW_OK;
851 case GST_STATE_CHANGE_READY_TO_PAUSED:
853 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
858 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
860 switch (transition) {
861 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
863 case GST_STATE_CHANGE_PAUSED_TO_READY:
864 gst_wavpack_enc_reset (enc);
866 case GST_STATE_CHANGE_READY_TO_NULL:
876 gst_wavpack_enc_set_property (GObject * object, guint prop_id,
877 const GValue * value, GParamSpec * pspec)
879 GstWavpackEnc *enc = GST_WAVPACK_ENC (object);
883 enc->mode = g_value_get_enum (value);
886 guint val = g_value_get_uint (value);
888 if ((val >= 24000) && (val <= 9600000)) {
897 case ARG_BITSPERSAMPLE:{
898 gdouble val = g_value_get_double (value);
900 if ((val >= 2.0) && (val <= 24.0)) {
909 case ARG_CORRECTION_MODE:
910 enc->correction_mode = g_value_get_enum (value);
913 enc->md5 = g_value_get_boolean (value);
915 case ARG_EXTRA_PROCESSING:
916 enc->extra_processing = g_value_get_uint (value);
918 case ARG_JOINT_STEREO_MODE:
919 enc->joint_stereo_mode = g_value_get_enum (value);
922 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
928 gst_wavpack_enc_get_property (GObject * object, guint prop_id, GValue * value,
931 GstWavpackEnc *enc = GST_WAVPACK_ENC (object);
935 g_value_set_enum (value, enc->mode);
938 if (enc->bps == 0.0) {
939 g_value_set_uint (value, enc->bitrate);
941 g_value_set_uint (value, 0);
944 case ARG_BITSPERSAMPLE:
945 if (enc->bitrate == 0) {
946 g_value_set_double (value, enc->bps);
948 g_value_set_double (value, 0.0);
951 case ARG_CORRECTION_MODE:
952 g_value_set_enum (value, enc->correction_mode);
955 g_value_set_boolean (value, enc->md5);
957 case ARG_EXTRA_PROCESSING:
958 g_value_set_uint (value, enc->extra_processing);
960 case ARG_JOINT_STEREO_MODE:
961 g_value_set_enum (value, enc->joint_stereo_mode);
964 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
970 gst_wavpack_enc_plugin_init (GstPlugin * plugin)
972 if (!gst_element_register (plugin, "wavpackenc",
973 GST_RANK_NONE, GST_TYPE_WAVPACK_ENC))
976 GST_DEBUG_CATEGORY_INIT (gst_wavpack_enc_debug, "wavpack_enc", 0,