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 gboolean gst_wavpack_enc_start (GstAudioEncoder * enc);
59 static gboolean gst_wavpack_enc_stop (GstAudioEncoder * enc);
60 static gboolean gst_wavpack_enc_set_format (GstAudioEncoder * enc,
62 static GstFlowReturn gst_wavpack_enc_handle_frame (GstAudioEncoder * enc,
64 static gboolean gst_wavpack_enc_sink_event (GstAudioEncoder * enc,
67 static int gst_wavpack_enc_push_block (void *id, void *data, int32_t count);
68 static GstFlowReturn gst_wavpack_enc_drain (GstWavpackEnc * enc);
70 static void gst_wavpack_enc_set_property (GObject * object, guint prop_id,
71 const GValue * value, GParamSpec * pspec);
72 static void gst_wavpack_enc_get_property (GObject * object, guint prop_id,
73 GValue * value, GParamSpec * pspec);
87 GST_DEBUG_CATEGORY_STATIC (gst_wavpack_enc_debug);
88 #define GST_CAT_DEFAULT gst_wavpack_enc_debug
90 static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
93 GST_STATIC_CAPS ("audio/x-raw-int, "
95 "depth = (int) { 24, 32 }, "
96 "endianness = (int) BYTE_ORDER, "
97 "channels = (int) [ 1, 8 ], "
98 "rate = (int) [ 6000, 192000 ]," "signed = (boolean) TRUE")
101 static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
104 GST_STATIC_CAPS ("audio/x-wavpack, "
105 "width = (int) [ 1, 32 ], "
106 "channels = (int) [ 1, 8 ], "
107 "rate = (int) [ 6000, 192000 ], " "framed = (boolean) TRUE")
110 static GstStaticPadTemplate wvcsrc_factory = GST_STATIC_PAD_TEMPLATE ("wvcsrc",
113 GST_STATIC_CAPS ("audio/x-wavpack-correction, " "framed = (boolean) TRUE")
118 GST_WAVPACK_ENC_MODE_VERY_FAST = 0,
119 GST_WAVPACK_ENC_MODE_FAST,
120 GST_WAVPACK_ENC_MODE_DEFAULT,
121 GST_WAVPACK_ENC_MODE_HIGH,
122 GST_WAVPACK_ENC_MODE_VERY_HIGH
125 #define GST_TYPE_WAVPACK_ENC_MODE (gst_wavpack_enc_mode_get_type ())
127 gst_wavpack_enc_mode_get_type (void)
129 static GType qtype = 0;
132 static const GEnumValue values[] = {
134 /* Very Fast Compression is not supported yet, but will be supported
135 * in future wavpack versions */
136 {GST_WAVPACK_ENC_MODE_VERY_FAST, "Very Fast Compression", "veryfast"},
138 {GST_WAVPACK_ENC_MODE_FAST, "Fast Compression", "fast"},
139 {GST_WAVPACK_ENC_MODE_DEFAULT, "Normal Compression", "normal"},
140 {GST_WAVPACK_ENC_MODE_HIGH, "High Compression", "high"},
141 #ifndef WAVPACK_OLD_API
142 {GST_WAVPACK_ENC_MODE_VERY_HIGH, "Very High Compression", "veryhigh"},
147 qtype = g_enum_register_static ("GstWavpackEncMode", values);
154 GST_WAVPACK_CORRECTION_MODE_OFF = 0,
155 GST_WAVPACK_CORRECTION_MODE_ON,
156 GST_WAVPACK_CORRECTION_MODE_OPTIMIZED
159 #define GST_TYPE_WAVPACK_ENC_CORRECTION_MODE (gst_wavpack_enc_correction_mode_get_type ())
161 gst_wavpack_enc_correction_mode_get_type (void)
163 static GType qtype = 0;
166 static const GEnumValue values[] = {
167 {GST_WAVPACK_CORRECTION_MODE_OFF, "Create no correction file", "off"},
168 {GST_WAVPACK_CORRECTION_MODE_ON, "Create correction file", "on"},
169 {GST_WAVPACK_CORRECTION_MODE_OPTIMIZED,
170 "Create optimized correction file", "optimized"},
174 qtype = g_enum_register_static ("GstWavpackEncCorrectionMode", values);
181 GST_WAVPACK_JS_MODE_AUTO = 0,
182 GST_WAVPACK_JS_MODE_LEFT_RIGHT,
183 GST_WAVPACK_JS_MODE_MID_SIDE
186 #define GST_TYPE_WAVPACK_ENC_JOINT_STEREO_MODE (gst_wavpack_enc_joint_stereo_mode_get_type ())
188 gst_wavpack_enc_joint_stereo_mode_get_type (void)
190 static GType qtype = 0;
193 static const GEnumValue values[] = {
194 {GST_WAVPACK_JS_MODE_AUTO, "auto", "auto"},
195 {GST_WAVPACK_JS_MODE_LEFT_RIGHT, "left/right", "leftright"},
196 {GST_WAVPACK_JS_MODE_MID_SIDE, "mid/side", "midside"},
200 qtype = g_enum_register_static ("GstWavpackEncJSMode", values);
205 GST_BOILERPLATE (GstWavpackEnc, gst_wavpack_enc, GstAudioEncoder,
206 GST_TYPE_AUDIO_ENCODER);
209 gst_wavpack_enc_base_init (gpointer klass)
211 GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
213 /* add pad templates */
214 gst_element_class_add_static_pad_template (element_class, &sink_factory);
215 gst_element_class_add_static_pad_template (element_class, &src_factory);
216 gst_element_class_add_static_pad_template (element_class, &wvcsrc_factory);
218 /* set element details */
219 gst_element_class_set_details_simple (element_class, "Wavpack audio encoder",
220 "Codec/Encoder/Audio",
221 "Encodes audio with the Wavpack lossless/lossy audio codec",
222 "Sebastian Dröge <slomo@circular-chaos.org>");
226 gst_wavpack_enc_class_init (GstWavpackEncClass * klass)
228 GObjectClass *gobject_class = (GObjectClass *) klass;
229 GstAudioEncoderClass *base_class = (GstAudioEncoderClass *) (klass);
231 parent_class = g_type_class_peek_parent (klass);
233 /* set property handlers */
234 gobject_class->set_property = gst_wavpack_enc_set_property;
235 gobject_class->get_property = gst_wavpack_enc_get_property;
237 base_class->start = GST_DEBUG_FUNCPTR (gst_wavpack_enc_start);
238 base_class->stop = GST_DEBUG_FUNCPTR (gst_wavpack_enc_stop);
239 base_class->set_format = GST_DEBUG_FUNCPTR (gst_wavpack_enc_set_format);
240 base_class->handle_frame = GST_DEBUG_FUNCPTR (gst_wavpack_enc_handle_frame);
241 base_class->event = GST_DEBUG_FUNCPTR (gst_wavpack_enc_sink_event);
243 /* install all properties */
244 g_object_class_install_property (gobject_class, ARG_MODE,
245 g_param_spec_enum ("mode", "Encoding mode",
246 "Speed versus compression tradeoff.",
247 GST_TYPE_WAVPACK_ENC_MODE, GST_WAVPACK_ENC_MODE_DEFAULT,
248 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
249 g_object_class_install_property (gobject_class, ARG_BITRATE,
250 g_param_spec_uint ("bitrate", "Bitrate",
251 "Try to encode with this average bitrate (bits/sec). "
252 "This enables lossy encoding, values smaller than 24000 disable it again.",
253 0, 9600000, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
254 g_object_class_install_property (gobject_class, ARG_BITSPERSAMPLE,
255 g_param_spec_double ("bits-per-sample", "Bits per sample",
256 "Try to encode with this amount of bits per sample. "
257 "This enables lossy encoding, values smaller than 2.0 disable it again.",
258 0.0, 24.0, 0.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
259 g_object_class_install_property (gobject_class, ARG_CORRECTION_MODE,
260 g_param_spec_enum ("correction-mode", "Correction stream mode",
261 "Use this mode for the correction stream. Only works in lossy mode!",
262 GST_TYPE_WAVPACK_ENC_CORRECTION_MODE, GST_WAVPACK_CORRECTION_MODE_OFF,
263 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
264 g_object_class_install_property (gobject_class, ARG_MD5,
265 g_param_spec_boolean ("md5", "MD5",
266 "Store MD5 hash of raw samples within the file.", FALSE,
267 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
268 g_object_class_install_property (gobject_class, ARG_EXTRA_PROCESSING,
269 g_param_spec_uint ("extra-processing", "Extra processing",
270 "Use better but slower filters for better compression/quality.",
271 0, 6, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
272 g_object_class_install_property (gobject_class, ARG_JOINT_STEREO_MODE,
273 g_param_spec_enum ("joint-stereo-mode", "Joint-Stereo mode",
274 "Use this joint-stereo mode.", GST_TYPE_WAVPACK_ENC_JOINT_STEREO_MODE,
275 GST_WAVPACK_JS_MODE_AUTO,
276 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
280 gst_wavpack_enc_reset (GstWavpackEnc * enc)
282 /* close and free everything stream related if we already did something */
283 if (enc->wp_context) {
284 WavpackCloseFile (enc->wp_context);
285 enc->wp_context = NULL;
287 if (enc->wp_config) {
288 g_free (enc->wp_config);
289 enc->wp_config = NULL;
291 if (enc->first_block) {
292 g_free (enc->first_block);
293 enc->first_block = NULL;
295 enc->first_block_size = 0;
296 if (enc->md5_context) {
297 g_checksum_free (enc->md5_context);
298 enc->md5_context = NULL;
300 if (enc->pending_segment)
301 gst_event_unref (enc->pending_segment);
302 enc->pending_segment = NULL;
304 if (enc->pending_buffer) {
305 gst_buffer_unref (enc->pending_buffer);
306 enc->pending_buffer = NULL;
307 enc->pending_offset = 0;
310 /* reset the last returns to GST_FLOW_OK. This is only set to something else
311 * while WavpackPackSamples() or more specific gst_wavpack_enc_push_block()
312 * so not valid anymore */
313 enc->srcpad_last_return = enc->wvcsrcpad_last_return = GST_FLOW_OK;
315 /* reset stream information */
319 enc->channel_mask = 0;
320 enc->need_channel_remap = FALSE;
322 enc->timestamp_offset = GST_CLOCK_TIME_NONE;
323 enc->next_ts = GST_CLOCK_TIME_NONE;
327 gst_wavpack_enc_init (GstWavpackEnc * enc, GstWavpackEncClass * gclass)
329 GstAudioEncoder *benc = GST_AUDIO_ENCODER (enc);
331 /* initialize object attributes */
332 enc->wp_config = NULL;
333 enc->wp_context = NULL;
334 enc->first_block = NULL;
335 enc->md5_context = NULL;
336 gst_wavpack_enc_reset (enc);
338 enc->wv_id.correction = FALSE;
339 enc->wv_id.wavpack_enc = enc;
340 enc->wv_id.passthrough = FALSE;
341 enc->wvc_id.correction = TRUE;
342 enc->wvc_id.wavpack_enc = enc;
343 enc->wvc_id.passthrough = FALSE;
345 /* set default values of params */
346 enc->mode = GST_WAVPACK_ENC_MODE_DEFAULT;
349 enc->correction_mode = GST_WAVPACK_CORRECTION_MODE_OFF;
351 enc->extra_processing = 0;
352 enc->joint_stereo_mode = GST_WAVPACK_JS_MODE_AUTO;
354 /* require perfect ts */
355 gst_audio_encoder_set_perfect_timestamp (benc, TRUE);
360 gst_wavpack_enc_start (GstAudioEncoder * enc)
362 GST_DEBUG_OBJECT (enc, "start");
368 gst_wavpack_enc_stop (GstAudioEncoder * enc)
370 GstWavpackEnc *wpenc = GST_WAVPACK_ENC (enc);
372 GST_DEBUG_OBJECT (enc, "stop");
373 gst_wavpack_enc_reset (wpenc);
379 gst_wavpack_enc_set_format (GstAudioEncoder * benc, GstAudioInfo * info)
381 GstWavpackEnc *enc = GST_WAVPACK_ENC (benc);
382 GstAudioChannelPosition *pos;
385 /* we may be configured again, but that change should have cleanup context */
386 g_assert (enc->wp_context == NULL);
388 enc->channels = GST_AUDIO_INFO_CHANNELS (info);
389 enc->depth = GST_AUDIO_INFO_DEPTH (info);
390 enc->samplerate = GST_AUDIO_INFO_RATE (info);
392 pos = info->position;
395 /* If one channel is NONE they'll be all undefined */
396 if (pos != NULL && pos[0] == GST_AUDIO_CHANNEL_POSITION_NONE) {
397 goto invalid_channels;
401 gst_wavpack_get_channel_mask_from_positions (pos, enc->channels);
402 enc->need_channel_remap =
403 gst_wavpack_set_channel_mapping (pos, enc->channels,
404 enc->channel_mapping);
406 /* set fixed src pad caps now that we know what we will get */
407 caps = gst_caps_new_simple ("audio/x-wavpack",
408 "channels", G_TYPE_INT, enc->channels,
409 "rate", G_TYPE_INT, enc->samplerate,
410 "width", G_TYPE_INT, enc->depth, "framed", G_TYPE_BOOLEAN, TRUE, NULL);
412 if (!gst_wavpack_set_channel_layout (caps, enc->channel_mask))
413 GST_WARNING_OBJECT (enc, "setting channel layout failed");
415 if (!gst_pad_set_caps (GST_AUDIO_ENCODER_SRC_PAD (enc), caps))
416 goto setting_src_caps_failed;
418 gst_caps_unref (caps);
420 /* no special feedback to base class; should provide all available samples */
425 setting_src_caps_failed:
427 GST_DEBUG_OBJECT (enc,
428 "Couldn't set caps on source pad: %" GST_PTR_FORMAT, caps);
429 gst_caps_unref (caps);
434 GST_DEBUG_OBJECT (enc, "input has invalid channel layout");
440 gst_wavpack_enc_set_wp_config (GstWavpackEnc * enc)
442 enc->wp_config = g_new0 (WavpackConfig, 1);
443 /* set general stream informations in the WavpackConfig */
444 enc->wp_config->bytes_per_sample = GST_ROUND_UP_8 (enc->depth) / 8;
445 enc->wp_config->bits_per_sample = enc->depth;
446 enc->wp_config->num_channels = enc->channels;
447 enc->wp_config->channel_mask = enc->channel_mask;
448 enc->wp_config->sample_rate = enc->samplerate;
451 * Set parameters in WavpackConfig
457 case GST_WAVPACK_ENC_MODE_VERY_FAST:
458 enc->wp_config->flags |= CONFIG_VERY_FAST_FLAG;
459 enc->wp_config->flags |= CONFIG_FAST_FLAG;
462 case GST_WAVPACK_ENC_MODE_FAST:
463 enc->wp_config->flags |= CONFIG_FAST_FLAG;
465 case GST_WAVPACK_ENC_MODE_DEFAULT:
467 case GST_WAVPACK_ENC_MODE_HIGH:
468 enc->wp_config->flags |= CONFIG_HIGH_FLAG;
470 #ifndef WAVPACK_OLD_API
471 case GST_WAVPACK_ENC_MODE_VERY_HIGH:
472 enc->wp_config->flags |= CONFIG_HIGH_FLAG;
473 enc->wp_config->flags |= CONFIG_VERY_HIGH_FLAG;
478 /* Bitrate, enables lossy mode */
480 enc->wp_config->flags |= CONFIG_HYBRID_FLAG;
481 enc->wp_config->flags |= CONFIG_BITRATE_KBPS;
482 enc->wp_config->bitrate = enc->bitrate / 1000.0;
483 } else if (enc->bps) {
484 enc->wp_config->flags |= CONFIG_HYBRID_FLAG;
485 enc->wp_config->bitrate = enc->bps;
488 /* Correction Mode, only in lossy mode */
489 if (enc->wp_config->flags & CONFIG_HYBRID_FLAG) {
490 if (enc->correction_mode > GST_WAVPACK_CORRECTION_MODE_OFF) {
491 GstCaps *caps = gst_caps_new_simple ("audio/x-wavpack-correction",
492 "framed", G_TYPE_BOOLEAN, TRUE, NULL);
495 gst_pad_new_from_static_template (&wvcsrc_factory, "wvcsrc");
497 /* try to add correction src pad, don't set correction mode on failure */
498 GST_DEBUG_OBJECT (enc, "Adding correction pad with caps %"
499 GST_PTR_FORMAT, caps);
500 if (!gst_pad_set_caps (enc->wvcsrcpad, caps)) {
501 enc->correction_mode = 0;
502 GST_WARNING_OBJECT (enc, "setting correction caps failed");
504 gst_pad_use_fixed_caps (enc->wvcsrcpad);
505 gst_pad_set_active (enc->wvcsrcpad, TRUE);
506 gst_element_add_pad (GST_ELEMENT (enc), enc->wvcsrcpad);
507 enc->wp_config->flags |= CONFIG_CREATE_WVC;
508 if (enc->correction_mode == GST_WAVPACK_CORRECTION_MODE_OPTIMIZED) {
509 enc->wp_config->flags |= CONFIG_OPTIMIZE_WVC;
512 gst_caps_unref (caps);
515 if (enc->correction_mode > GST_WAVPACK_CORRECTION_MODE_OFF) {
516 enc->correction_mode = 0;
517 GST_WARNING_OBJECT (enc, "setting correction mode only has "
518 "any effect if a bitrate is provided.");
521 gst_element_no_more_pads (GST_ELEMENT (enc));
523 /* MD5, setup MD5 context */
524 if ((enc->md5) && !(enc->md5_context)) {
525 enc->wp_config->flags |= CONFIG_MD5_CHECKSUM;
526 enc->md5_context = g_checksum_new (G_CHECKSUM_MD5);
529 /* Extra encode processing */
530 if (enc->extra_processing) {
531 enc->wp_config->flags |= CONFIG_EXTRA_MODE;
532 enc->wp_config->xmode = enc->extra_processing;
535 /* Joint stereo mode */
536 switch (enc->joint_stereo_mode) {
537 case GST_WAVPACK_JS_MODE_AUTO:
539 case GST_WAVPACK_JS_MODE_LEFT_RIGHT:
540 enc->wp_config->flags |= CONFIG_JOINT_OVERRIDE;
541 enc->wp_config->flags &= ~CONFIG_JOINT_STEREO;
543 case GST_WAVPACK_JS_MODE_MID_SIDE:
544 enc->wp_config->flags |= (CONFIG_JOINT_OVERRIDE | CONFIG_JOINT_STEREO);
550 gst_wavpack_enc_push_block (void *id, void *data, int32_t count)
552 GstWavpackEncWriteID *wid = (GstWavpackEncWriteID *) id;
553 GstWavpackEnc *enc = GST_WAVPACK_ENC (wid->wavpack_enc);
557 guchar *block = (guchar *) data;
560 pad = (wid->correction) ? enc->wvcsrcpad : GST_AUDIO_ENCODER_SRC_PAD (enc);
562 (wid->correction) ? &enc->wvcsrcpad_last_return : &enc->
565 buffer = gst_buffer_new_and_alloc (count);
566 g_memmove (GST_BUFFER_DATA (buffer), block, count);
568 if (count > sizeof (WavpackHeader) && memcmp (block, "wvpk", 4) == 0) {
569 /* if it's a Wavpack block set buffer timestamp and duration, etc */
572 GST_LOG_OBJECT (enc, "got %d bytes of encoded wavpack %sdata",
573 count, (wid->correction) ? "correction " : "");
575 gst_wavpack_read_header (&wph, block);
577 /* Only set when pushing the first buffer again, in that case
578 * we don't want to delay the buffer or push newsegment events
580 if (!wid->passthrough) {
581 /* Only push complete blocks */
582 if (enc->pending_buffer == NULL) {
583 enc->pending_buffer = buffer;
584 enc->pending_offset = wph.block_index;
585 } else if (enc->pending_offset == wph.block_index) {
586 enc->pending_buffer = gst_buffer_join (enc->pending_buffer, buffer);
588 GST_ERROR ("Got incomplete block, dropping");
589 gst_buffer_unref (enc->pending_buffer);
590 enc->pending_buffer = buffer;
591 enc->pending_offset = wph.block_index;
594 if (!(wph.flags & FINAL_BLOCK))
597 buffer = enc->pending_buffer;
598 enc->pending_buffer = NULL;
599 enc->pending_offset = 0;
601 /* only send segment on correction pad,
602 * regular pad is handled normally by baseclass */
603 if (wid->correction && enc->pending_segment) {
604 gst_pad_push_event (pad, enc->pending_segment);
605 enc->pending_segment = NULL;
608 if (wph.block_index == 0) {
609 /* save header for later reference, so we can re-send it later on
610 * EOS with fixed up values for total sample count etc. */
611 if (enc->first_block == NULL && !wid->correction) {
613 g_memdup (GST_BUFFER_DATA (buffer), GST_BUFFER_SIZE (buffer));
614 enc->first_block_size = GST_BUFFER_SIZE (buffer);
618 samples = wph.block_samples;
620 /* if it's something else set no timestamp and duration on the buffer */
621 GST_DEBUG_OBJECT (enc, "got %d bytes of unknown data", count);
624 if (wid->correction || wid->passthrough) {
625 /* push the buffer and forward errors */
626 GST_DEBUG_OBJECT (enc, "pushing buffer with %d bytes",
627 GST_BUFFER_SIZE (buffer));
628 *flow = gst_pad_push (pad, buffer);
630 GST_DEBUG_OBJECT (enc, "handing frame of %d bytes",
631 GST_BUFFER_SIZE (buffer));
632 *flow = gst_audio_encoder_finish_frame (GST_AUDIO_ENCODER (enc), buffer,
636 if (*flow != GST_FLOW_OK) {
637 GST_WARNING_OBJECT (enc, "flow on %s:%s = %s",
638 GST_DEBUG_PAD_NAME (pad), gst_flow_get_name (*flow));
646 gst_wavpack_enc_fix_channel_order (GstWavpackEnc * enc, gint32 * data,
652 for (i = 0; i < nsamples / enc->channels; i++) {
653 for (j = 0; j < enc->channels; j++) {
654 tmp[enc->channel_mapping[j]] = data[j];
656 for (j = 0; j < enc->channels; j++) {
659 data += enc->channels;
664 gst_wavpack_enc_handle_frame (GstAudioEncoder * benc, GstBuffer * buf)
666 GstWavpackEnc *enc = GST_WAVPACK_ENC (benc);
667 uint32_t sample_count;
670 /* base class ensures configuration */
671 g_return_val_if_fail (enc->depth != 0, GST_FLOW_NOT_NEGOTIATED);
673 /* reset the last returns to GST_FLOW_OK. This is only set to something else
674 * while WavpackPackSamples() or more specific gst_wavpack_enc_push_block()
675 * so not valid anymore */
676 enc->srcpad_last_return = enc->wvcsrcpad_last_return = GST_FLOW_OK;
678 if (G_UNLIKELY (!buf))
679 return gst_wavpack_enc_drain (enc);
681 sample_count = GST_BUFFER_SIZE (buf) / 4;
682 GST_DEBUG_OBJECT (enc, "got %u raw samples", sample_count);
684 /* check if we already have a valid WavpackContext, otherwise make one */
685 if (!enc->wp_context) {
686 /* create raw context */
688 WavpackOpenFileOutput (gst_wavpack_enc_push_block, &enc->wv_id,
689 (enc->correction_mode > 0) ? &enc->wvc_id : NULL);
690 if (!enc->wp_context)
693 /* set the WavpackConfig according to our parameters */
694 gst_wavpack_enc_set_wp_config (enc);
696 /* set the configuration to the context now that we know everything
697 * and initialize the encoder */
698 if (!WavpackSetConfiguration (enc->wp_context,
699 enc->wp_config, (uint32_t) (-1))
700 || !WavpackPackInit (enc->wp_context)) {
701 WavpackCloseFile (enc->wp_context);
704 GST_DEBUG_OBJECT (enc, "setup of encoding context successfull");
707 if (enc->need_channel_remap) {
708 buf = gst_buffer_make_writable (buf);
709 gst_wavpack_enc_fix_channel_order (enc, (gint32 *) GST_BUFFER_DATA (buf),
713 /* if we want to append the MD5 sum to the stream update it here
714 * with the current raw samples */
716 g_checksum_update (enc->md5_context, GST_BUFFER_DATA (buf),
717 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_OBJECT (enc, "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 goto encoding_failed;
749 GST_ELEMENT_ERROR (enc, LIBRARY, ENCODE, (NULL),
750 ("encoding samples failed"));
751 ret = GST_FLOW_ERROR;
756 GST_ELEMENT_ERROR (enc, LIBRARY, SETTINGS, (NULL),
757 ("error setting up wavpack encoding context"));
758 ret = GST_FLOW_ERROR;
763 GST_ELEMENT_ERROR (enc, LIBRARY, INIT, (NULL),
764 ("error creating Wavpack context"));
765 ret = GST_FLOW_ERROR;
771 gst_wavpack_enc_rewrite_first_block (GstWavpackEnc * enc)
773 GstEvent *event = gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_BYTES,
774 0, GST_BUFFER_OFFSET_NONE, 0);
777 g_return_if_fail (enc);
778 g_return_if_fail (enc->first_block);
780 /* update the sample count in the first block */
781 WavpackUpdateNumSamples (enc->wp_context, enc->first_block);
783 /* try to seek to the beginning of the output */
784 ret = gst_pad_push_event (GST_AUDIO_ENCODER_SRC_PAD (enc), event);
786 /* try to rewrite the first block */
787 GST_DEBUG_OBJECT (enc, "rewriting first block ...");
788 enc->wv_id.passthrough = TRUE;
789 ret = gst_wavpack_enc_push_block (&enc->wv_id,
790 enc->first_block, enc->first_block_size);
791 enc->wv_id.passthrough = FALSE;
792 g_free (enc->first_block);
793 enc->first_block = NULL;
795 GST_WARNING_OBJECT (enc, "rewriting of first block failed. "
796 "Seeking to first block failed!");
801 gst_wavpack_enc_drain (GstWavpackEnc * enc)
803 if (!enc->wp_context)
806 GST_DEBUG_OBJECT (enc, "draining");
808 /* Encode all remaining samples and flush them to the src pads */
809 WavpackFlushSamples (enc->wp_context);
811 /* Drop all remaining data, this is no complete block otherwise
812 * it would've been pushed already */
813 if (enc->pending_buffer) {
814 gst_buffer_unref (enc->pending_buffer);
815 enc->pending_buffer = NULL;
816 enc->pending_offset = 0;
819 /* write the MD5 sum if we have to write one */
820 if ((enc->md5) && (enc->md5_context)) {
821 guint8 md5_digest[16];
822 gsize digest_len = sizeof (md5_digest);
824 g_checksum_get_digest (enc->md5_context, md5_digest, &digest_len);
825 if (digest_len == sizeof (md5_digest)) {
826 WavpackStoreMD5Sum (enc->wp_context, md5_digest);
827 WavpackFlushSamples (enc->wp_context);
829 GST_WARNING_OBJECT (enc, "Calculating MD5 digest failed");
832 /* Try to rewrite the first frame with the correct sample number */
833 if (enc->first_block)
834 gst_wavpack_enc_rewrite_first_block (enc);
836 /* close the context if not already happened */
837 if (enc->wp_context) {
838 WavpackCloseFile (enc->wp_context);
839 enc->wp_context = NULL;
846 gst_wavpack_enc_sink_event (GstAudioEncoder * benc, GstEvent * event)
848 GstWavpackEnc *enc = GST_WAVPACK_ENC (benc);
850 GST_DEBUG_OBJECT (enc, "Received %s event on sinkpad",
851 GST_EVENT_TYPE_NAME (event));
853 switch (GST_EVENT_TYPE (event)) {
854 case GST_EVENT_NEWSEGMENT:
855 if (enc->wp_context) {
856 GST_WARNING_OBJECT (enc, "got NEWSEGMENT after encoding "
859 /* peek and hold NEWSEGMENT events for sending on correction pad */
860 if (enc->pending_segment)
861 gst_event_unref (enc->pending_segment);
862 enc->pending_segment = gst_event_ref (event);
868 /* baseclass handles rest */
873 gst_wavpack_enc_set_property (GObject * object, guint prop_id,
874 const GValue * value, GParamSpec * pspec)
876 GstWavpackEnc *enc = GST_WAVPACK_ENC (object);
880 enc->mode = g_value_get_enum (value);
883 guint val = g_value_get_uint (value);
885 if ((val >= 24000) && (val <= 9600000)) {
894 case ARG_BITSPERSAMPLE:{
895 gdouble val = g_value_get_double (value);
897 if ((val >= 2.0) && (val <= 24.0)) {
906 case ARG_CORRECTION_MODE:
907 enc->correction_mode = g_value_get_enum (value);
910 enc->md5 = g_value_get_boolean (value);
912 case ARG_EXTRA_PROCESSING:
913 enc->extra_processing = g_value_get_uint (value);
915 case ARG_JOINT_STEREO_MODE:
916 enc->joint_stereo_mode = g_value_get_enum (value);
919 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
925 gst_wavpack_enc_get_property (GObject * object, guint prop_id, GValue * value,
928 GstWavpackEnc *enc = GST_WAVPACK_ENC (object);
932 g_value_set_enum (value, enc->mode);
935 if (enc->bps == 0.0) {
936 g_value_set_uint (value, enc->bitrate);
938 g_value_set_uint (value, 0);
941 case ARG_BITSPERSAMPLE:
942 if (enc->bitrate == 0) {
943 g_value_set_double (value, enc->bps);
945 g_value_set_double (value, 0.0);
948 case ARG_CORRECTION_MODE:
949 g_value_set_enum (value, enc->correction_mode);
952 g_value_set_boolean (value, enc->md5);
954 case ARG_EXTRA_PROCESSING:
955 g_value_set_uint (value, enc->extra_processing);
957 case ARG_JOINT_STEREO_MODE:
958 g_value_set_enum (value, enc->joint_stereo_mode);
961 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
967 gst_wavpack_enc_plugin_init (GstPlugin * plugin)
969 if (!gst_element_register (plugin, "wavpackenc",
970 GST_RANK_NONE, GST_TYPE_WAVPACK_ENC))
973 GST_DEBUG_CATEGORY_INIT (gst_wavpack_enc_debug, "wavpack_enc", 0,