gstreamer/ext/flac/gstflacenc.c

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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <string.h>
#include <gstflacenc.h>
#include <gst/tag/tag.h>
#include <gst/gsttaginterface.h>
#include "flac_compat.h"
static GstPadTemplate *src_template, *sink_template;
/* elementfactory information */
GstElementDetails flacenc_details = {
"FLAC encoder",
"Codec/Encoder/Audio",
"Encodes audio with the FLAC lossless audio encoder",
"Wim Taymans <wim.taymans@chello.be>",
};
/* FlacEnc signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
ARG_0,
ARG_QUALITY,
ARG_STREAMABLE_SUBSET,
ARG_MID_SIDE_STEREO,
ARG_LOOSE_MID_SIDE_STEREO,
ARG_BLOCKSIZE,
ARG_MAX_LPC_ORDER,
ARG_QLP_COEFF_PRECISION,
ARG_QLP_COEFF_PREC_SEARCH,
ARG_ESCAPE_CODING,
ARG_EXHAUSTIVE_MODEL_SEARCH,
ARG_MIN_RESIDUAL_PARTITION_ORDER,
ARG_MAX_RESIDUAL_PARTITION_ORDER,
ARG_RICE_PARAMETER_SEARCH_DIST,
};
static void gst_flacenc_base_init (gpointer g_class);
static void gst_flacenc_init (FlacEnc * flacenc);
static void gst_flacenc_class_init (FlacEncClass * klass);
static void gst_flacenc_dispose (GObject * object);
static GstPadLinkReturn
gst_flacenc_sinkconnect (GstPad * pad, const GstCaps * caps);
static void gst_flacenc_chain (GstPad * pad, GstData * _data);
static gboolean gst_flacenc_update_quality (FlacEnc * flacenc, gint quality);
static void gst_flacenc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_flacenc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstElementStateReturn gst_flacenc_change_state (GstElement * element);
static FLAC__StreamEncoderWriteStatus
gst_flacenc_write_callback (const FLAC__SeekableStreamEncoder * encoder,
const FLAC__byte buffer[], unsigned bytes,
unsigned samples, unsigned current_frame, void *client_data);
static FLAC__SeekableStreamEncoderSeekStatus
gst_flacenc_seek_callback (const FLAC__SeekableStreamEncoder * encoder,
FLAC__uint64 absolute_byte_offset, void *client_data);
static GstElementClass *parent_class = NULL;
/*static guint gst_flacenc_signals[LAST_SIGNAL] = { 0 }; */
GType
flacenc_get_type (void)
{
static GType flacenc_type = 0;
if (!flacenc_type) {
static const GTypeInfo flacenc_info = {
sizeof (FlacEncClass),
gst_flacenc_base_init,
NULL,
(GClassInitFunc) gst_flacenc_class_init,
NULL,
NULL,
sizeof (FlacEnc),
0,
(GInstanceInitFunc) gst_flacenc_init,
};
static const GInterfaceInfo tag_setter_info = {
NULL,
NULL,
NULL
};
flacenc_type =
g_type_register_static (GST_TYPE_ELEMENT, "FlacEnc", &flacenc_info, 0);
g_type_add_interface_static (flacenc_type, GST_TYPE_TAG_SETTER,
&tag_setter_info);
}
return flacenc_type;
}
typedef struct
{
gboolean exhaustive_model_search;
gboolean escape_coding;
gboolean mid_side;
gboolean loose_mid_side;
guint qlp_coeff_precision;
gboolean qlp_coeff_prec_search;
guint min_residual_partition_order;
guint max_residual_partition_order;
guint rice_parameter_search_dist;
guint max_lpc_order;
guint blocksize;
}
FlacEncParams;
static const FlacEncParams flacenc_params[] = {
{FALSE, FALSE, FALSE, FALSE, 0, FALSE, 2, 2, 0, 0, 1152},
{FALSE, FALSE, TRUE, TRUE, 0, FALSE, 2, 2, 0, 0, 1152},
{FALSE, FALSE, TRUE, FALSE, 0, FALSE, 0, 3, 0, 0, 1152},
{FALSE, FALSE, FALSE, FALSE, 0, FALSE, 3, 3, 0, 6, 4608},
{FALSE, FALSE, TRUE, TRUE, 0, FALSE, 3, 3, 0, 8, 4608},
{FALSE, FALSE, TRUE, FALSE, 0, FALSE, 3, 3, 0, 8, 4608},
{FALSE, FALSE, TRUE, FALSE, 0, FALSE, 0, 4, 0, 8, 4608},
{TRUE, FALSE, TRUE, FALSE, 0, FALSE, 0, 6, 0, 8, 4608},
{TRUE, FALSE, TRUE, FALSE, 0, FALSE, 0, 6, 0, 12, 4608},
{TRUE, TRUE, TRUE, FALSE, 0, FALSE, 0, 16, 0, 32, 4608},
};
#define DEFAULT_QUALITY 5
#define GST_TYPE_FLACENC_QUALITY (gst_flacenc_quality_get_type ())
GType
gst_flacenc_quality_get_type (void)
{
static GType qtype = 0;
if (qtype == 0) {
static const GEnumValue values[] = {
{0, "0", "0 - Fastest compression"},
{1, "1", "1"},
{2, "2", "2"},
{3, "3", "3"},
{4, "4", "4"},
{5, "5", "5 - Default"},
{6, "6", "6"},
{7, "7", "7"},
{8, "8", "8 - Highest compression "},
{9, "9", "9 - Insane"},
{0, NULL, NULL}
};
qtype = g_enum_register_static ("FlacEncQuality", values);
}
return qtype;
}
static GstCaps *
flac_caps_factory (void)
{
return gst_caps_new_simple ("audio/x-flac", NULL);
/* "rate", GST_PROPS_INT_RANGE (11025, 48000),
* "channels", GST_PROPS_INT_RANGE (1, 2), */
}
static GstCaps *
raw_caps_factory (void)
{
return gst_caps_new_simple ("audio/x-raw-int",
"endianness", G_TYPE_INT, G_BYTE_ORDER,
"signed", G_TYPE_BOOLEAN, TRUE,
"width", G_TYPE_INT, 16,
"depth", G_TYPE_INT, 16,
"rate", GST_TYPE_INT_RANGE, 11025, 48000,
"channels", GST_TYPE_INT_RANGE, 1, 2, NULL);
}
static void
gst_flacenc_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
GstCaps *raw_caps, *flac_caps;
raw_caps = raw_caps_factory ();
flac_caps = flac_caps_factory ();
sink_template = gst_pad_template_new ("sink", GST_PAD_SINK,
GST_PAD_ALWAYS, raw_caps);
src_template = gst_pad_template_new ("src", GST_PAD_SRC,
GST_PAD_ALWAYS, flac_caps);
gst_element_class_add_pad_template (element_class, sink_template);
gst_element_class_add_pad_template (element_class, src_template);
gst_element_class_set_details (element_class, &flacenc_details);
}
static void
gst_flacenc_class_init (FlacEncClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
/* we have no properties atm so this is a bit silly */
gobject_class->set_property = gst_flacenc_set_property;
gobject_class->get_property = gst_flacenc_get_property;
gobject_class->dispose = gst_flacenc_dispose;
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_QUALITY,
g_param_spec_enum ("quality",
"Quality",
"Speed versus compression tradeoff",
GST_TYPE_FLACENC_QUALITY, DEFAULT_QUALITY, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass),
ARG_STREAMABLE_SUBSET, g_param_spec_boolean ("streamable_subset",
"Streamable subset",
"true to limit encoder to generating a Subset stream, else false",
TRUE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MID_SIDE_STEREO,
g_param_spec_boolean ("mid_side_stereo", "Do mid side stereo",
"Do mid side stereo (only for stereo input)",
flacenc_params[DEFAULT_QUALITY].mid_side, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass),
ARG_LOOSE_MID_SIDE_STEREO, g_param_spec_boolean ("loose_mid_side_stereo",
"Loose mid side stereo", "Loose mid side stereo",
flacenc_params[DEFAULT_QUALITY].loose_mid_side, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BLOCKSIZE,
g_param_spec_uint ("blocksize", "Blocksize", "Blocksize in samples",
FLAC__MIN_BLOCK_SIZE, FLAC__MAX_BLOCK_SIZE,
flacenc_params[DEFAULT_QUALITY].blocksize, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MAX_LPC_ORDER,
g_param_spec_uint ("max_lpc_order", "Max LPC order",
"Max LPC order; 0 => use only fixed predictors", 0,
FLAC__MAX_LPC_ORDER, flacenc_params[DEFAULT_QUALITY].max_lpc_order,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass),
ARG_QLP_COEFF_PRECISION, g_param_spec_uint ("qlp_coeff_precision",
"QLP coefficients precision",
"Precision in bits of quantized linear-predictor coefficients; 0 = automatic",
0, 32, flacenc_params[DEFAULT_QUALITY].qlp_coeff_precision,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass),
ARG_QLP_COEFF_PREC_SEARCH, g_param_spec_boolean ("qlp_coeff_prec_search",
"Do QLP coefficients precision search",
"false = use qlp_coeff_precision, "
"true = search around qlp_coeff_precision, take best",
flacenc_params[DEFAULT_QUALITY].qlp_coeff_prec_search,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ESCAPE_CODING,
g_param_spec_boolean ("escape_coding", "Do Escape coding",
"search for escape codes in the entropy coding stage "
"for slightly better compression",
flacenc_params[DEFAULT_QUALITY].escape_coding, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass),
ARG_EXHAUSTIVE_MODEL_SEARCH,
g_param_spec_boolean ("exhaustive_model_search",
"Do exhaustive model search",
"do exhaustive search of LP coefficient quantization (expensive!)",
flacenc_params[DEFAULT_QUALITY].exhaustive_model_search,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass),
ARG_MIN_RESIDUAL_PARTITION_ORDER,
g_param_spec_uint ("min_residual_partition_order",
"Min residual partition order",
"Min residual partition order (above 4 doesn't usually help much)", 0,
16, flacenc_params[DEFAULT_QUALITY].min_residual_partition_order,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass),
ARG_MAX_RESIDUAL_PARTITION_ORDER,
g_param_spec_uint ("max_residual_partition_order",
"Max residual partition order",
"Max residual partition order (above 4 doesn't usually help much)", 0,
16, flacenc_params[DEFAULT_QUALITY].max_residual_partition_order,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass),
ARG_RICE_PARAMETER_SEARCH_DIST,
g_param_spec_uint ("rice_parameter_search_dist",
"rice_parameter_search_dist",
"0 = try only calc'd parameter k; else try all [k-dist..k+dist] "
"parameters, use best", 0, FLAC__MAX_RICE_PARTITION_ORDER,
flacenc_params[DEFAULT_QUALITY].rice_parameter_search_dist,
G_PARAM_READWRITE));
gstelement_class->change_state = gst_flacenc_change_state;
}
static void
gst_flacenc_init (FlacEnc * flacenc)
{
flacenc->sinkpad = gst_pad_new_from_template (sink_template, "sink");
gst_element_add_pad (GST_ELEMENT (flacenc), flacenc->sinkpad);
gst_pad_set_chain_function (flacenc->sinkpad, gst_flacenc_chain);
gst_pad_set_link_function (flacenc->sinkpad, gst_flacenc_sinkconnect);
flacenc->srcpad = gst_pad_new_from_template (src_template, "src");
gst_element_add_pad (GST_ELEMENT (flacenc), flacenc->srcpad);
GST_FLAG_SET (flacenc, GST_ELEMENT_EVENT_AWARE);
flacenc->encoder = FLAC__seekable_stream_encoder_new ();
flacenc->negotiated = FALSE;
flacenc->first = TRUE;
flacenc->first_buf = NULL;
flacenc->data = NULL;
gst_flacenc_update_quality (flacenc, DEFAULT_QUALITY);
flacenc->tags = gst_tag_list_new ();
}
static void
gst_flacenc_dispose (GObject * object)
{
FlacEnc *flacenc = GST_FLACENC (object);
FLAC__seekable_stream_encoder_delete (flacenc->encoder);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static GstPadLinkReturn
gst_flacenc_sinkconnect (GstPad * pad, const GstCaps * caps)
{
GstPadLinkReturn ret;
FlacEnc *flacenc;
GstStructure *structure;
flacenc = GST_FLACENC (gst_pad_get_parent (pad));
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_int (structure, "channels", &flacenc->channels);
gst_structure_get_int (structure, "depth", &flacenc->depth);
gst_structure_get_int (structure, "rate", &flacenc->sample_rate);
caps = gst_caps_new_simple ("audio/x-flac",
"channels", G_TYPE_INT, flacenc->channels,
"rate", G_TYPE_INT, flacenc->sample_rate, NULL);
ret = gst_pad_try_set_caps (flacenc->srcpad, caps);
if (ret <= 0) {
return ret;
}
FLAC__seekable_stream_encoder_set_bits_per_sample (flacenc->encoder,
flacenc->depth);
FLAC__seekable_stream_encoder_set_sample_rate (flacenc->encoder,
flacenc->sample_rate);
FLAC__seekable_stream_encoder_set_channels (flacenc->encoder,
flacenc->channels);
flacenc->negotiated = TRUE;
return ret;
}
static gboolean
gst_flacenc_update_quality (FlacEnc * flacenc, gint quality)
{
flacenc->quality = quality;
#define DO_UPDATE(name, val, str) \
G_STMT_START { \
if (FLAC__seekable_stream_encoder_get_##name (flacenc->encoder) != \
flacenc_params[quality].val) { \
FLAC__seekable_stream_encoder_set_##name (flacenc->encoder, \
flacenc_params[quality].val); \
g_object_notify (G_OBJECT (flacenc), str); \
} \
} G_STMT_END
g_object_freeze_notify (G_OBJECT (flacenc));
DO_UPDATE (do_mid_side_stereo, mid_side, "mid_side_stereo");
DO_UPDATE (loose_mid_side_stereo, loose_mid_side, "loose_mid_side");
DO_UPDATE (blocksize, blocksize, "blocksize");
DO_UPDATE (max_lpc_order, max_lpc_order, "max_lpc_order");
DO_UPDATE (qlp_coeff_precision, qlp_coeff_precision, "qlp_coeff_precision");
DO_UPDATE (do_qlp_coeff_prec_search, qlp_coeff_prec_search,
"qlp_coeff_prec_search");
DO_UPDATE (do_escape_coding, escape_coding, "escape_coding");
DO_UPDATE (do_exhaustive_model_search, exhaustive_model_search,
"exhaustive_model_search");
DO_UPDATE (min_residual_partition_order, min_residual_partition_order,
"min_residual_partition_order");
DO_UPDATE (max_residual_partition_order, max_residual_partition_order,
"max_residual_partition_order");
DO_UPDATE (rice_parameter_search_dist, rice_parameter_search_dist,
"rice_parameter_search_dist");
#undef DO_UPDATE
g_object_thaw_notify (G_OBJECT (flacenc));
return TRUE;
}
static FLAC__SeekableStreamEncoderSeekStatus
gst_flacenc_seek_callback (const FLAC__SeekableStreamEncoder * encoder,
FLAC__uint64 absolute_byte_offset, void *client_data)
{
FlacEnc *flacenc;
GstEvent *event;
flacenc = GST_FLACENC (client_data);
if (flacenc->stopped)
return FLAC__STREAM_ENCODER_OK;
event =
gst_event_new_seek ((GstSeekType) (int) (GST_FORMAT_BYTES |
GST_SEEK_METHOD_SET), absolute_byte_offset);
if (event)
gst_pad_push (flacenc->srcpad, GST_DATA (event));
return FLAC__STREAM_ENCODER_OK;
}
static FLAC__StreamEncoderWriteStatus
gst_flacenc_write_callback (const FLAC__SeekableStreamEncoder * encoder,
const FLAC__byte buffer[], unsigned bytes,
unsigned samples, unsigned current_frame, void *client_data)
{
FlacEnc *flacenc;
GstBuffer *outbuf;
flacenc = GST_FLACENC (client_data);
if (flacenc->stopped)
return FLAC__STREAM_ENCODER_OK;
outbuf = gst_buffer_new_and_alloc (bytes);
memcpy (GST_BUFFER_DATA (outbuf), buffer, bytes);
if (flacenc->first) {
flacenc->first_buf = outbuf;
gst_buffer_ref (outbuf);
flacenc->first = FALSE;
}
gst_pad_push (flacenc->srcpad, GST_DATA (outbuf));
return FLAC__STREAM_ENCODER_OK;
}
static void
add_one_tag (const GstTagList * list, const gchar * tag, gpointer user_data)
{
GList *comments;
GList *it;
FlacEnc *flacenc = GST_FLACENC (user_data);
comments = gst_tag_to_vorbis_comments (list, tag);
for (it = comments; it != NULL; it = it->next) {
FLAC__StreamMetadata_VorbisComment_Entry commment_entry;
commment_entry.length = strlen (it->data);
commment_entry.entry = it->data;
FLAC__metadata_object_vorbiscomment_insert_comment (flacenc->meta[0],
flacenc->meta[0]->data.vorbis_comment.num_comments,
commment_entry, TRUE);
g_free (it->data);
}
g_list_free (comments);
}
static void
gst_flacenc_set_metadata (FlacEnc * flacenc)
{
const GstTagList *user_tags;
GstTagList *copy;
g_return_if_fail (flacenc != NULL);
user_tags = gst_tag_setter_get_list (GST_TAG_SETTER (flacenc));
if ((flacenc->tags == NULL) && (user_tags == NULL)) {
return;
}
copy = gst_tag_list_merge (user_tags, flacenc->tags,
gst_tag_setter_get_merge_mode (GST_TAG_SETTER (flacenc)));
flacenc->meta = g_malloc (sizeof (FLAC__StreamMetadata **));
flacenc->meta[0] =
FLAC__metadata_object_new (FLAC__METADATA_TYPE_VORBIS_COMMENT);
gst_tag_list_foreach (copy, add_one_tag, flacenc);
if (FLAC__seekable_stream_encoder_set_metadata (flacenc->encoder,
flacenc->meta, 1) != true)
g_warning ("Dude, i'm already initialized!");
gst_tag_list_free (copy);
}
static void
gst_flacenc_chain (GstPad * pad, GstData * _data)
{
GstBuffer *buf = GST_BUFFER (_data);
FlacEnc *flacenc;
FLAC__int32 *data;
gulong insize;
gint samples, depth;
gulong i;
FLAC__bool res;
g_return_if_fail (buf != NULL);
flacenc = GST_FLACENC (gst_pad_get_parent (pad));
if (GST_IS_EVENT (buf)) {
GstEvent *event = GST_EVENT (buf);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
FLAC__seekable_stream_encoder_finish (flacenc->encoder);
break;
case GST_EVENT_TAG:
if (flacenc->tags) {
gst_tag_list_insert (flacenc->tags, gst_event_tag_get_list (event),
GST_TAG_MERGE_REPLACE);
} else {
g_assert_not_reached ();
}
break;
default:
break;
}
gst_pad_event_default (pad, event);
return;
}
if (!flacenc->negotiated) {
GST_ELEMENT_ERROR (flacenc, CORE, NEGOTIATION, (NULL),
("format wasn't negotiated before chain function"));
return;
}
depth = flacenc->depth;
insize = GST_BUFFER_SIZE (buf);
samples = insize / ((depth + 7) >> 3);
if (FLAC__seekable_stream_encoder_get_state (flacenc->encoder) ==
FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) {
FLAC__SeekableStreamEncoderState state;
FLAC__seekable_stream_encoder_set_write_callback (flacenc->encoder,
gst_flacenc_write_callback);
FLAC__seekable_stream_encoder_set_seek_callback (flacenc->encoder,
gst_flacenc_seek_callback);
FLAC__seekable_stream_encoder_set_client_data (flacenc->encoder, flacenc);
gst_flacenc_set_metadata (flacenc);
state = FLAC__seekable_stream_encoder_init (flacenc->encoder);
if (state != FLAC__STREAM_ENCODER_OK) {
GST_ELEMENT_ERROR (flacenc, LIBRARY, INIT, (NULL),
("could not initialize encoder (wrong parameters?)"));
return;
}
}
/* we keep a pointer in the flacenc struct because we are freeing the data
* after a push opreration that might never return */
data = flacenc->data = g_malloc (samples * sizeof (FLAC__int32));
if (depth == 8) {
gint8 *indata = (gint8 *) GST_BUFFER_DATA (buf);
for (i = 0; i < samples; i++) {
data[i] = (FLAC__int32) * indata++;
}
} else if (depth == 16) {
gint16 *indata = (gint16 *) GST_BUFFER_DATA (buf);
for (i = 0; i < samples; i++) {
data[i] = (FLAC__int32) * indata++;
}
}
gst_buffer_unref (buf);
res = FLAC__seekable_stream_encoder_process_interleaved (flacenc->encoder,
(const FLAC__int32 *) data, samples / flacenc->channels);
g_free (flacenc->data);
flacenc->data = NULL;
if (!res) {
GST_ELEMENT_ERROR (flacenc, STREAM, ENCODE, (NULL), (NULL));
}
}
static void
gst_flacenc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
FlacEnc *this;
this = (FlacEnc *) object;
switch (prop_id) {
case ARG_QUALITY:
gst_flacenc_update_quality (this, g_value_get_enum (value));
break;
case ARG_STREAMABLE_SUBSET:
FLAC__seekable_stream_encoder_set_streamable_subset (this->encoder,
g_value_get_boolean (value));
break;
case ARG_MID_SIDE_STEREO:
FLAC__seekable_stream_encoder_set_do_mid_side_stereo (this->encoder,
g_value_get_boolean (value));
break;
case ARG_LOOSE_MID_SIDE_STEREO:
FLAC__seekable_stream_encoder_set_loose_mid_side_stereo (this->encoder,
g_value_get_boolean (value));
break;
case ARG_BLOCKSIZE:
FLAC__seekable_stream_encoder_set_blocksize (this->encoder,
g_value_get_uint (value));
break;
case ARG_MAX_LPC_ORDER:
FLAC__seekable_stream_encoder_set_max_lpc_order (this->encoder,
g_value_get_uint (value));
break;
case ARG_QLP_COEFF_PRECISION:
FLAC__seekable_stream_encoder_set_qlp_coeff_precision (this->encoder,
g_value_get_uint (value));
break;
case ARG_QLP_COEFF_PREC_SEARCH:
FLAC__seekable_stream_encoder_set_do_qlp_coeff_prec_search (this->encoder,
g_value_get_boolean (value));
break;
case ARG_ESCAPE_CODING:
FLAC__seekable_stream_encoder_set_do_escape_coding (this->encoder,
g_value_get_boolean (value));
break;
case ARG_EXHAUSTIVE_MODEL_SEARCH:
FLAC__seekable_stream_encoder_set_do_exhaustive_model_search (this->
encoder, g_value_get_boolean (value));
break;
case ARG_MIN_RESIDUAL_PARTITION_ORDER:
FLAC__seekable_stream_encoder_set_min_residual_partition_order (this->
encoder, g_value_get_uint (value));
break;
case ARG_MAX_RESIDUAL_PARTITION_ORDER:
FLAC__seekable_stream_encoder_set_max_residual_partition_order (this->
encoder, g_value_get_uint (value));
break;
case ARG_RICE_PARAMETER_SEARCH_DIST:
FLAC__seekable_stream_encoder_set_rice_parameter_search_dist (this->
encoder, g_value_get_uint (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
return;
}
}
static void
gst_flacenc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
FlacEnc *this;
this = (FlacEnc *) object;
switch (prop_id) {
case ARG_QUALITY:
g_value_set_enum (value, this->quality);
break;
case ARG_STREAMABLE_SUBSET:
g_value_set_boolean (value,
FLAC__seekable_stream_encoder_get_streamable_subset (this->encoder));
break;
case ARG_MID_SIDE_STEREO:
g_value_set_boolean (value,
FLAC__seekable_stream_encoder_get_do_mid_side_stereo (this->encoder));
break;
case ARG_LOOSE_MID_SIDE_STEREO:
g_value_set_boolean (value,
FLAC__seekable_stream_encoder_get_loose_mid_side_stereo (this->
encoder));
break;
case ARG_BLOCKSIZE:
g_value_set_uint (value,
FLAC__seekable_stream_encoder_get_blocksize (this->encoder));
break;
case ARG_MAX_LPC_ORDER:
g_value_set_uint (value,
FLAC__seekable_stream_encoder_get_max_lpc_order (this->encoder));
break;
case ARG_QLP_COEFF_PRECISION:
g_value_set_uint (value,
FLAC__seekable_stream_encoder_get_qlp_coeff_precision (this->
encoder));
break;
case ARG_QLP_COEFF_PREC_SEARCH:
g_value_set_boolean (value,
FLAC__seekable_stream_encoder_get_do_qlp_coeff_prec_search (this->
encoder));
break;
case ARG_ESCAPE_CODING:
g_value_set_boolean (value,
FLAC__seekable_stream_encoder_get_do_escape_coding (this->encoder));
break;
case ARG_EXHAUSTIVE_MODEL_SEARCH:
g_value_set_boolean (value,
FLAC__seekable_stream_encoder_get_do_exhaustive_model_search (this->
encoder));
break;
case ARG_MIN_RESIDUAL_PARTITION_ORDER:
g_value_set_uint (value,
FLAC__seekable_stream_encoder_get_min_residual_partition_order (this->
encoder));
break;
case ARG_MAX_RESIDUAL_PARTITION_ORDER:
g_value_set_uint (value,
FLAC__seekable_stream_encoder_get_max_residual_partition_order (this->
encoder));
break;
case ARG_RICE_PARAMETER_SEARCH_DIST:
g_value_set_uint (value,
FLAC__seekable_stream_encoder_get_rice_parameter_search_dist (this->
encoder));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstElementStateReturn
gst_flacenc_change_state (GstElement * element)
{
FlacEnc *flacenc = GST_FLACENC (element);
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_NULL_TO_READY:
case GST_STATE_READY_TO_PAUSED:
flacenc->first = TRUE;
flacenc->stopped = FALSE;
break;
case GST_STATE_PAUSED_TO_PLAYING:
case GST_STATE_PLAYING_TO_PAUSED:
break;
case GST_STATE_PAUSED_TO_READY:
if (FLAC__seekable_stream_encoder_get_state (flacenc->encoder) !=
FLAC__STREAM_ENCODER_UNINITIALIZED) {
flacenc->stopped = TRUE;
FLAC__seekable_stream_encoder_finish (flacenc->encoder);
}
flacenc->negotiated = FALSE;
if (flacenc->first_buf)
gst_buffer_unref (flacenc->first_buf);
flacenc->first_buf = NULL;
g_free (flacenc->data);
flacenc->data = NULL;
if (flacenc->meta) {
FLAC__metadata_object_delete (flacenc->meta[0]);
g_free (flacenc->meta);
flacenc->meta = NULL;
}
break;
case GST_STATE_READY_TO_NULL:
default:
break;
}
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
return GST_STATE_SUCCESS;
}