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 ! wavpackenc ! filesink location=sinewave.wv
34 * This pipeline encodes audio from audiotestsrc into a Wavpack file.
38 * gst-launch cdda://1 ! wavpackenc ! filesink location=track1.wv
40 * This pipeline encodes audio from an audio CD into a Wavpack file using
41 * lossless encoding (the file output will be fairly large).
45 * gst-launch cdda://1 ! wavpackenc bitrate=128000 ! filesink location=track1.wv
47 * This pipeline encodes audio from an audio CD into a Wavpack file using
48 * lossy encoding at a certain bitrate (the file will be fairly small).
54 * TODO: - add multichannel handling. channel_mask is:
68 * - add 32 bit float mode. CONFIG_FLOAT_DATA
73 #include <glib/gprintf.h>
75 #include <wavpack/wavpack.h>
76 #include "gstwavpackenc.h"
77 #include "gstwavpackcommon.h"
80 static GstFlowReturn gst_wavpack_enc_chain (GstPad * pad, GstBuffer * buffer);
81 static gboolean gst_wavpack_enc_sink_set_caps (GstPad * pad, GstCaps * caps);
82 static int gst_wavpack_enc_push_block (void *id, void *data, int32_t count);
83 static gboolean gst_wavpack_enc_sink_event (GstPad * pad, GstEvent * event);
84 static GstStateChangeReturn gst_wavpack_enc_change_state (GstElement * element,
85 GstStateChange transition);
86 static void gst_wavpack_enc_set_property (GObject * object, guint prop_id,
87 const GValue * value, GParamSpec * pspec);
88 static void gst_wavpack_enc_get_property (GObject * object, guint prop_id,
89 GValue * value, GParamSpec * pspec);
100 ARG_JOINT_STEREO_MODE
103 GST_DEBUG_CATEGORY_STATIC (gst_wavpack_enc_debug);
104 #define GST_CAT_DEFAULT gst_wavpack_enc_debug
106 static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
109 GST_STATIC_CAPS ("audio/x-raw-int, "
111 "depth = (int) [ 1, 32], "
112 "endianness = (int) BYTE_ORDER, "
113 "channels = (int) [ 1, 2 ], "
114 "rate = (int) [ 6000, 192000 ]," "signed = (boolean) TRUE")
117 static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
120 GST_STATIC_CAPS ("audio/x-wavpack, "
121 "width = (int) [ 1, 32 ], "
122 "channels = (int) [ 1, 2 ], "
123 "rate = (int) [ 6000, 192000 ], " "framed = (boolean) TRUE")
126 static GstStaticPadTemplate wvcsrc_factory = GST_STATIC_PAD_TEMPLATE ("wvcsrc",
129 GST_STATIC_CAPS ("audio/x-wavpack-correction, " "framed = (boolean) TRUE")
134 GST_WAVPACK_ENC_MODE_VERY_FAST = 0,
135 GST_WAVPACK_ENC_MODE_FAST,
136 GST_WAVPACK_ENC_MODE_DEFAULT,
137 GST_WAVPACK_ENC_MODE_HIGH,
138 GST_WAVPACK_ENC_MODE_VERY_HIGH
141 #define GST_TYPE_WAVPACK_ENC_MODE (gst_wavpack_enc_mode_get_type ())
143 gst_wavpack_enc_mode_get_type (void)
145 static GType qtype = 0;
148 static const GEnumValue values[] = {
150 /* Very Fast Compression is not supported yet, but will be supported
151 * in future wavpack versions */
152 {GST_WAVPACK_ENC_MODE_VERY_FAST, "Very Fast Compression", "veryfast"},
154 {GST_WAVPACK_ENC_MODE_FAST, "Fast Compression", "fast"},
155 {GST_WAVPACK_ENC_MODE_DEFAULT, "Normal Compression", "normal"},
156 {GST_WAVPACK_ENC_MODE_HIGH, "High Compression", "high"},
157 #ifndef WAVPACK_OLD_API
158 {GST_WAVPACK_ENC_MODE_VERY_HIGH, "Very High Compression", "veryhigh"},
163 qtype = g_enum_register_static ("GstWavpackEncMode", values);
170 GST_WAVPACK_CORRECTION_MODE_OFF = 0,
171 GST_WAVPACK_CORRECTION_MODE_ON,
172 GST_WAVPACK_CORRECTION_MODE_OPTIMIZED
175 #define GST_TYPE_WAVPACK_ENC_CORRECTION_MODE (gst_wavpack_enc_correction_mode_get_type ())
177 gst_wavpack_enc_correction_mode_get_type (void)
179 static GType qtype = 0;
182 static const GEnumValue values[] = {
183 {GST_WAVPACK_CORRECTION_MODE_OFF, "Create no correction file", "off"},
184 {GST_WAVPACK_CORRECTION_MODE_ON, "Create correction file", "on"},
185 {GST_WAVPACK_CORRECTION_MODE_OPTIMIZED,
186 "Create optimized correction file", "optimized"},
190 qtype = g_enum_register_static ("GstWavpackEncCorrectionMode", values);
197 GST_WAVPACK_JS_MODE_AUTO = 0,
198 GST_WAVPACK_JS_MODE_LEFT_RIGHT,
199 GST_WAVPACK_JS_MODE_MID_SIDE
202 #define GST_TYPE_WAVPACK_ENC_JOINT_STEREO_MODE (gst_wavpack_enc_joint_stereo_mode_get_type ())
204 gst_wavpack_enc_joint_stereo_mode_get_type (void)
206 static GType qtype = 0;
209 static const GEnumValue values[] = {
210 {GST_WAVPACK_JS_MODE_AUTO, "auto", "auto"},
211 {GST_WAVPACK_JS_MODE_LEFT_RIGHT, "left/right", "leftright"},
212 {GST_WAVPACK_JS_MODE_MID_SIDE, "mid/side", "midside"},
216 qtype = g_enum_register_static ("GstWavpackEncJSMode", values);
221 GST_BOILERPLATE (GstWavpackEnc, gst_wavpack_enc, GstElement, GST_TYPE_ELEMENT);
224 gst_wavpack_enc_base_init (gpointer klass)
226 static const GstElementDetails element_details = {
227 "Wavpack audio encoder",
228 "Codec/Encoder/Audio",
229 "Encodes audio with the Wavpack lossless/lossy audio codec",
230 "Sebastian Dröge <slomo@circular-chaos.org>"
232 GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
234 /* add pad templates */
235 gst_element_class_add_pad_template (element_class,
236 gst_static_pad_template_get (&sink_factory));
237 gst_element_class_add_pad_template (element_class,
238 gst_static_pad_template_get (&src_factory));
239 gst_element_class_add_pad_template (element_class,
240 gst_static_pad_template_get (&wvcsrc_factory));
242 /* set element details */
243 gst_element_class_set_details (element_class, &element_details);
248 gst_wavpack_enc_class_init (GstWavpackEncClass * klass)
250 GObjectClass *gobject_class = (GObjectClass *) klass;
251 GstElementClass *gstelement_class = (GstElementClass *) klass;
253 parent_class = g_type_class_peek_parent (klass);
255 /* set state change handler */
256 gstelement_class->change_state =
257 GST_DEBUG_FUNCPTR (gst_wavpack_enc_change_state);
259 /* set property handlers */
260 gobject_class->set_property =
261 GST_DEBUG_FUNCPTR (gst_wavpack_enc_set_property);
262 gobject_class->get_property =
263 GST_DEBUG_FUNCPTR (gst_wavpack_enc_get_property);
265 /* install all properties */
266 g_object_class_install_property (gobject_class, ARG_MODE,
267 g_param_spec_enum ("mode", "Encoding mode",
268 "Speed versus compression tradeoff.",
269 GST_TYPE_WAVPACK_ENC_MODE, GST_WAVPACK_ENC_MODE_DEFAULT,
271 g_object_class_install_property (gobject_class, ARG_BITRATE,
272 g_param_spec_double ("bitrate", "Bitrate",
273 "Try to encode with this average bitrate (bits/sec). "
274 "This enables lossy encoding! A value smaller than 24000.0 disables this.",
275 0.0, 9600000.0, 0.0, G_PARAM_READWRITE));
276 g_object_class_install_property (gobject_class, ARG_BITSPERSAMPLE,
277 g_param_spec_double ("bits-per-sample", "Bits per sample",
278 "Try to encode with this amount of bits per sample. "
279 "This enables lossy encoding! A value smaller than 2.0 disables this.",
280 0.0, 24.0, 0.0, G_PARAM_READWRITE));
281 g_object_class_install_property (gobject_class, ARG_CORRECTION_MODE,
282 g_param_spec_enum ("correction-mode", "Correction file mode",
283 "Use this mode for correction file creation. Only works in lossy mode!",
284 GST_TYPE_WAVPACK_ENC_CORRECTION_MODE, GST_WAVPACK_CORRECTION_MODE_OFF,
286 g_object_class_install_property (gobject_class, ARG_MD5,
287 g_param_spec_boolean ("md5", "MD5",
288 "Store MD5 hash of raw samples within the file.", FALSE,
290 g_object_class_install_property (gobject_class, ARG_EXTRA_PROCESSING,
291 g_param_spec_boolean ("extra-processing", "Extra processing",
292 "Extra encode processing.", FALSE, G_PARAM_READWRITE));
293 g_object_class_install_property (gobject_class, ARG_JOINT_STEREO_MODE,
294 g_param_spec_enum ("joint-stereo-mode", "Joint-Stereo mode",
295 "Use this joint-stereo mode.", GST_TYPE_WAVPACK_ENC_JOINT_STEREO_MODE,
296 GST_WAVPACK_JS_MODE_AUTO, G_PARAM_READWRITE));
300 gst_wavpack_enc_reset (GstWavpackEnc * enc)
302 /* close and free everything stream related if we already did something */
303 if (enc->wp_context) {
304 WavpackCloseFile (enc->wp_context);
305 enc->wp_context = NULL;
307 if (enc->wp_config) {
308 g_free (enc->wp_config);
309 enc->wp_config = NULL;
311 if (enc->first_block) {
312 g_free (enc->first_block);
313 enc->first_block = NULL;
315 enc->first_block_size = 0;
316 if (enc->md5_context) {
317 g_free (enc->md5_context);
318 enc->md5_context = NULL;
321 /* reset the last returns to GST_FLOW_OK. This is only set to something else
322 * while WavpackPackSamples() or more specific gst_wavpack_enc_push_block()
323 * so not valid anymore */
324 enc->srcpad_last_return = enc->wvcsrcpad_last_return = GST_FLOW_OK;
326 /* reset stream information */
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->wvc_id.correction = TRUE;
358 enc->wvc_id.wavpack_enc = enc;
360 /* set default values of params */
361 enc->mode = GST_WAVPACK_ENC_MODE_DEFAULT;
363 enc->correction_mode = GST_WAVPACK_CORRECTION_MODE_OFF;
365 enc->extra_processing = FALSE;
366 enc->joint_stereo_mode = GST_WAVPACK_JS_MODE_AUTO;
370 gst_wavpack_enc_sink_set_caps (GstPad * pad, GstCaps * caps)
372 GstWavpackEnc *enc = GST_WAVPACK_ENC (gst_pad_get_parent (pad));
373 GstStructure *structure = gst_caps_get_structure (caps, 0);
375 /* FIXME: Workaround for bug #421543: calls gst_pad_accept_caps() */
376 /* check caps and put relevant parts into our object attributes */
377 if (!gst_pad_accept_caps (pad, caps) ||
378 !gst_structure_get_int (structure, "channels", &enc->channels) ||
379 !gst_structure_get_int (structure, "rate", &enc->samplerate) ||
380 !gst_structure_get_int (structure, "depth", &enc->depth)) {
381 GST_ELEMENT_ERROR (enc, LIBRARY, INIT, (NULL),
382 ("got invalid caps: %" GST_PTR_FORMAT, caps));
383 gst_object_unref (enc);
387 /* set fixed src pad caps now that we know what we will get */
388 caps = gst_caps_new_simple ("audio/x-wavpack",
389 "channels", G_TYPE_INT, enc->channels,
390 "rate", G_TYPE_INT, enc->samplerate,
391 "width", G_TYPE_INT, enc->depth, "framed", G_TYPE_BOOLEAN, TRUE, NULL);
393 if (!gst_pad_set_caps (enc->srcpad, caps)) {
394 GST_ELEMENT_ERROR (enc, LIBRARY, INIT, (NULL),
395 ("setting caps failed: %" GST_PTR_FORMAT, caps));
396 gst_caps_unref (caps);
397 gst_object_unref (enc);
400 gst_pad_use_fixed_caps (enc->srcpad);
402 gst_caps_unref (caps);
403 gst_object_unref (enc);
408 gst_wavpack_enc_set_wp_config (GstWavpackEnc * enc)
410 enc->wp_config = g_new0 (WavpackConfig, 1);
411 /* set general stream informations in the WavpackConfig */
412 enc->wp_config->bytes_per_sample = GST_ROUND_UP_8 (enc->depth) / 8;
413 enc->wp_config->bits_per_sample = enc->depth;
414 enc->wp_config->num_channels = enc->channels;
416 /* TODO: handle more than 2 channels correctly! */
417 if (enc->channels == 1) {
418 enc->wp_config->channel_mask = 0x4;
419 } else if (enc->channels == 2) {
420 enc->wp_config->channel_mask = 0x2 | 0x1;
422 enc->wp_config->sample_rate = enc->samplerate;
425 * Set parameters in WavpackConfig
431 case GST_WAVPACK_ENC_MODE_VERY_FAST:
432 enc->wp_config->flags |= CONFIG_VERY_FAST_FLAG;
433 enc->wp_config->flags |= CONFIG_FAST_FLAG;
436 case GST_WAVPACK_ENC_MODE_FAST:
437 enc->wp_config->flags |= CONFIG_FAST_FLAG;
439 case GST_WAVPACK_ENC_MODE_DEFAULT:
441 case GST_WAVPACK_ENC_MODE_HIGH:
442 enc->wp_config->flags |= CONFIG_HIGH_FLAG;
444 #ifndef WAVPACK_OLD_API
445 case GST_WAVPACK_ENC_MODE_VERY_HIGH:
446 enc->wp_config->flags |= CONFIG_HIGH_FLAG;
447 enc->wp_config->flags |= CONFIG_VERY_HIGH_FLAG;
452 /* Bitrate, enables lossy mode */
453 if (enc->bitrate >= 2.0) {
454 enc->wp_config->flags |= CONFIG_HYBRID_FLAG;
455 if (enc->bitrate >= 24000.0) {
456 enc->wp_config->bitrate = enc->bitrate / 1000.0;
457 enc->wp_config->flags |= CONFIG_BITRATE_KBPS;
459 enc->wp_config->bitrate = enc->bitrate;
463 /* Correction Mode, only in lossy mode */
464 if (enc->wp_config->flags & CONFIG_HYBRID_FLAG) {
465 if (enc->correction_mode > GST_WAVPACK_CORRECTION_MODE_OFF) {
467 gst_pad_new_from_static_template (&wvcsrc_factory, "wvcsrc");
469 /* try to add correction src pad, don't set correction mode on failure */
470 GstCaps *caps = gst_caps_new_simple ("audio/x-wavpack-correction",
471 "framed", G_TYPE_BOOLEAN, TRUE, NULL);
473 GST_DEBUG_OBJECT (enc, "Adding correction pad with caps %"
474 GST_PTR_FORMAT, caps);
475 if (!gst_pad_set_caps (enc->wvcsrcpad, caps)) {
476 enc->correction_mode = 0;
477 GST_WARNING_OBJECT (enc, "setting correction caps failed");
479 gst_pad_use_fixed_caps (enc->wvcsrcpad);
480 gst_pad_set_active (enc->wvcsrcpad, TRUE);
481 gst_element_add_pad (GST_ELEMENT (enc), enc->wvcsrcpad);
482 enc->wp_config->flags |= CONFIG_CREATE_WVC;
483 if (enc->correction_mode == GST_WAVPACK_CORRECTION_MODE_OPTIMIZED) {
484 enc->wp_config->flags |= CONFIG_OPTIMIZE_WVC;
487 gst_caps_unref (caps);
490 if (enc->correction_mode > GST_WAVPACK_CORRECTION_MODE_OFF) {
491 enc->correction_mode = 0;
492 GST_WARNING_OBJECT (enc, "setting correction mode only has "
493 "any effect if a bitrate is provided.");
496 gst_element_no_more_pads (GST_ELEMENT (enc));
498 /* MD5, setup MD5 context */
499 if ((enc->md5) && !(enc->md5_context)) {
500 enc->wp_config->flags |= CONFIG_MD5_CHECKSUM;
501 enc->md5_context = g_new0 (MD5_CTX, 1);
502 MD5Init (enc->md5_context);
505 /* Extra encode processing */
506 if (enc->extra_processing) {
507 enc->wp_config->flags |= CONFIG_EXTRA_MODE;
510 /* Joint stereo mode */
511 switch (enc->joint_stereo_mode) {
512 case GST_WAVPACK_JS_MODE_AUTO:
514 case GST_WAVPACK_JS_MODE_LEFT_RIGHT:
515 enc->wp_config->flags |= CONFIG_JOINT_OVERRIDE;
516 enc->wp_config->flags &= ~CONFIG_JOINT_STEREO;
518 case GST_WAVPACK_JS_MODE_MID_SIDE:
519 enc->wp_config->flags |= (CONFIG_JOINT_OVERRIDE | CONFIG_JOINT_STEREO);
525 gst_wavpack_enc_push_block (void *id, void *data, int32_t count)
527 GstWavpackEncWriteID *wid = (GstWavpackEncWriteID *) id;
528 GstWavpackEnc *enc = GST_WAVPACK_ENC (wid->wavpack_enc);
532 guchar *block = (guchar *) data;
534 pad = (wid->correction) ? enc->wvcsrcpad : enc->srcpad;
536 (wid->correction) ? &enc->wvcsrcpad_last_return : &enc->
539 *flow = gst_pad_alloc_buffer_and_set_caps (pad, GST_BUFFER_OFFSET_NONE,
540 count, GST_PAD_CAPS (pad), &buffer);
542 if (*flow != GST_FLOW_OK) {
543 GST_WARNING_OBJECT (enc, "flow on %s:%s = %s",
544 GST_DEBUG_PAD_NAME (pad), gst_flow_get_name (*flow));
548 g_memmove (GST_BUFFER_DATA (buffer), block, count);
550 if (count > sizeof (WavpackHeader) && memcmp (block, "wvpk", 4) == 0) {
551 /* if it's a Wavpack block set buffer timestamp and duration, etc */
554 GST_LOG_OBJECT (enc, "got %d bytes of encoded wavpack %sdata",
555 count, (wid->correction) ? "correction " : "");
557 gst_wavpack_read_header (&wph, block);
559 /* if it's the first wavpack block, send a NEW_SEGMENT event */
560 if (wph.block_index == 0) {
561 gst_pad_push_event (pad,
562 gst_event_new_new_segment (FALSE,
563 1.0, GST_FORMAT_TIME, 0, GST_BUFFER_OFFSET_NONE, 0));
565 /* save header for later reference, so we can re-send it later on
566 * EOS with fixed up values for total sample count etc. */
567 if (enc->first_block == NULL && !wid->correction) {
568 enc->first_block = g_memdup (block, count);
569 enc->first_block_size = count;
573 /* set buffer timestamp, duration, offset, offset_end from
574 * the wavpack header */
575 GST_BUFFER_TIMESTAMP (buffer) =
576 gst_util_uint64_scale_int (GST_SECOND, wph.block_index,
578 GST_BUFFER_DURATION (buffer) =
579 gst_util_uint64_scale_int (GST_SECOND, wph.block_samples,
581 GST_BUFFER_OFFSET (buffer) = wph.block_index;
582 GST_BUFFER_OFFSET_END (buffer) = wph.block_index + wph.block_samples;
584 /* if it's something else set no timestamp and duration on the buffer */
585 GST_DEBUG_OBJECT (enc, "got %d bytes of unknown data", count);
587 GST_BUFFER_TIMESTAMP (buffer) = GST_CLOCK_TIME_NONE;
588 GST_BUFFER_DURATION (buffer) = GST_CLOCK_TIME_NONE;
591 /* push the buffer and forward errors */
592 *flow = gst_pad_push (pad, buffer);
594 if (*flow != GST_FLOW_OK) {
595 GST_WARNING_OBJECT (enc, "flow on %s:%s = %s",
596 GST_DEBUG_PAD_NAME (pad), gst_flow_get_name (*flow));
604 gst_wavpack_enc_chain (GstPad * pad, GstBuffer * buf)
606 GstWavpackEnc *enc = GST_WAVPACK_ENC (gst_pad_get_parent (pad));
607 uint32_t sample_count = GST_BUFFER_SIZE (buf) / 4;
610 /* reset the last returns to GST_FLOW_OK. This is only set to something else
611 * while WavpackPackSamples() or more specific gst_wavpack_enc_push_block()
612 * so not valid anymore */
613 enc->srcpad_last_return = enc->wvcsrcpad_last_return = GST_FLOW_OK;
615 GST_DEBUG ("got %u raw samples", sample_count);
617 /* check if we already have a valid WavpackContext, otherwise make one */
618 if (!enc->wp_context) {
619 /* create raw context */
621 WavpackOpenFileOutput (gst_wavpack_enc_push_block, &enc->wv_id,
622 (enc->correction_mode > 0) ? &enc->wvc_id : NULL);
623 if (!enc->wp_context) {
624 GST_ELEMENT_ERROR (enc, LIBRARY, INIT, (NULL),
625 ("error creating Wavpack context"));
626 gst_object_unref (enc);
627 gst_buffer_unref (buf);
628 return GST_FLOW_ERROR;
631 /* set the WavpackConfig according to our parameters */
632 gst_wavpack_enc_set_wp_config (enc);
634 /* set the configuration to the context now that we know everything
635 * and initialize the encoder */
636 if (!WavpackSetConfiguration (enc->wp_context,
637 enc->wp_config, (uint32_t) (-1))
638 || !WavpackPackInit (enc->wp_context)) {
639 GST_ELEMENT_ERROR (enc, LIBRARY, SETTINGS, (NULL),
640 ("error setting up wavpack encoding context"));
641 WavpackCloseFile (enc->wp_context);
642 gst_object_unref (enc);
643 gst_buffer_unref (buf);
644 return GST_FLOW_ERROR;
646 GST_DEBUG ("setup of encoding context successfull");
649 /* if we want to append the MD5 sum to the stream update it here
650 * with the current raw samples */
652 MD5Update (enc->md5_context, GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
655 /* encode and handle return values from encoding */
656 if (WavpackPackSamples (enc->wp_context, (int32_t *) GST_BUFFER_DATA (buf),
657 sample_count / enc->channels)) {
658 GST_DEBUG ("encoding samples successful");
661 if ((enc->srcpad_last_return == GST_FLOW_RESEND) ||
662 (enc->wvcsrcpad_last_return == GST_FLOW_RESEND)) {
663 ret = GST_FLOW_RESEND;
664 } else if ((enc->srcpad_last_return == GST_FLOW_OK) ||
665 (enc->wvcsrcpad_last_return == GST_FLOW_OK)) {
667 } else if ((enc->srcpad_last_return == GST_FLOW_NOT_LINKED) &&
668 (enc->wvcsrcpad_last_return == GST_FLOW_NOT_LINKED)) {
669 ret = GST_FLOW_NOT_LINKED;
670 } else if ((enc->srcpad_last_return == GST_FLOW_WRONG_STATE) &&
671 (enc->wvcsrcpad_last_return == GST_FLOW_WRONG_STATE)) {
672 ret = GST_FLOW_WRONG_STATE;
674 GST_ELEMENT_ERROR (enc, LIBRARY, ENCODE, (NULL),
675 ("encoding samples failed"));
676 ret = GST_FLOW_ERROR;
680 gst_buffer_unref (buf);
681 gst_object_unref (enc);
686 gst_wavpack_enc_rewrite_first_block (GstWavpackEnc * enc)
688 GstEvent *event = gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_BYTES,
689 0, GST_BUFFER_OFFSET_NONE, 0);
692 g_return_if_fail (enc);
693 g_return_if_fail (enc->first_block);
695 /* update the sample count in the first block */
696 WavpackUpdateNumSamples (enc->wp_context, enc->first_block);
698 /* try to seek to the beginning of the output */
699 ret = gst_pad_push_event (enc->srcpad, event);
701 /* try to rewrite the first block */
702 GST_DEBUG_OBJECT (enc, "rewriting first block ...");
703 ret = gst_wavpack_enc_push_block (&enc->wv_id,
704 enc->first_block, enc->first_block_size);
706 GST_WARNING_OBJECT (enc, "rewriting of first block failed. "
707 "Seeking to first block failed!");
712 gst_wavpack_enc_sink_event (GstPad * pad, GstEvent * event)
714 GstWavpackEnc *enc = GST_WAVPACK_ENC (gst_pad_get_parent (pad));
717 GST_DEBUG ("Received %s event on sinkpad", GST_EVENT_TYPE_NAME (event));
719 switch (GST_EVENT_TYPE (event)) {
721 /* Encode all remaining samples and flush them to the src pads */
722 WavpackFlushSamples (enc->wp_context);
724 /* write the MD5 sum if we have to write one */
725 if ((enc->md5) && (enc->md5_context)) {
726 guchar md5_digest[16];
728 MD5Final (md5_digest, enc->md5_context);
729 WavpackStoreMD5Sum (enc->wp_context, md5_digest);
732 /* Try to rewrite the first frame with the correct sample number */
733 if (enc->first_block)
734 gst_wavpack_enc_rewrite_first_block (enc);
736 /* close the context if not already happened */
737 if (enc->wp_context) {
738 WavpackCloseFile (enc->wp_context);
739 enc->wp_context = NULL;
742 ret = gst_pad_event_default (pad, event);
744 case GST_EVENT_NEWSEGMENT:
745 if (enc->wp_context) {
746 GST_WARNING_OBJECT (enc, "got NEWSEGMENT after encoding "
749 /* drop NEWSEGMENT events, we create our own when pushing
750 * the first buffer to the pads */
751 gst_event_unref (event);
755 ret = gst_pad_event_default (pad, event);
759 gst_object_unref (enc);
763 static GstStateChangeReturn
764 gst_wavpack_enc_change_state (GstElement * element, GstStateChange transition)
766 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
767 GstWavpackEnc *enc = GST_WAVPACK_ENC (element);
769 switch (transition) {
770 case GST_STATE_CHANGE_NULL_TO_READY:
771 /* set the last returned GstFlowReturns of the two pads to GST_FLOW_OK
772 * as they're only set to something else in WavpackPackSamples() or more
773 * specific gst_wavpack_enc_push_block() and nothing happened there yet */
774 enc->srcpad_last_return = enc->wvcsrcpad_last_return = GST_FLOW_OK;
776 case GST_STATE_CHANGE_READY_TO_PAUSED:
778 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
783 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
785 switch (transition) {
786 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
788 case GST_STATE_CHANGE_PAUSED_TO_READY:
789 gst_wavpack_enc_reset (enc);
791 case GST_STATE_CHANGE_READY_TO_NULL:
801 gst_wavpack_enc_set_property (GObject * object, guint prop_id,
802 const GValue * value, GParamSpec * pspec)
804 GstWavpackEnc *enc = GST_WAVPACK_ENC (object);
808 enc->mode = g_value_get_enum (value);
811 gdouble val = g_value_get_double (value);
813 if ((val >= 24000.0) && (val <= 9600000.0)) {
820 case ARG_BITSPERSAMPLE:{
821 gdouble val = g_value_get_double (value);
823 if ((val >= 2.0) && (val <= 24.0)) {
830 case ARG_CORRECTION_MODE:
831 enc->correction_mode = g_value_get_enum (value);
834 enc->md5 = g_value_get_boolean (value);
836 case ARG_EXTRA_PROCESSING:
837 enc->extra_processing = g_value_get_boolean (value);
839 case ARG_JOINT_STEREO_MODE:
840 enc->joint_stereo_mode = g_value_get_enum (value);
843 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
849 gst_wavpack_enc_get_property (GObject * object, guint prop_id, GValue * value,
852 GstWavpackEnc *enc = GST_WAVPACK_ENC (object);
856 g_value_set_enum (value, enc->mode);
859 if (enc->bitrate >= 24000.0) {
860 g_value_set_double (value, enc->bitrate);
862 g_value_set_double (value, 0.0);
865 case ARG_BITSPERSAMPLE:
866 if (enc->bitrate <= 24.0) {
867 g_value_set_double (value, enc->bitrate);
869 g_value_set_double (value, 0.0);
872 case ARG_CORRECTION_MODE:
873 g_value_set_enum (value, enc->correction_mode);
876 g_value_set_boolean (value, enc->md5);
878 case ARG_EXTRA_PROCESSING:
879 g_value_set_boolean (value, enc->extra_processing);
881 case ARG_JOINT_STEREO_MODE:
882 g_value_set_enum (value, enc->joint_stereo_mode);
885 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
891 gst_wavpack_enc_plugin_init (GstPlugin * plugin)
893 if (!gst_element_register (plugin, "wavpackenc",
894 GST_RANK_NONE, GST_TYPE_WAVPACK_ENC))
897 GST_DEBUG_CATEGORY_INIT (gst_wavpack_enc_debug, "wavpack_enc", 0,