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gstreamer/ext/lame/gstlame.c
Thomas Vander Stichele 709aae57cb adding lame 
Original commit message from CVS:
adding lame
2001-12-20 23:48:55 +00:00

756 lines
26 KiB
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/* Gnome-Streamer
* 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.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <dirent.h>
#include <errno.h>
#include <sys/soundcard.h>
#include "gstlame.h"
static GstElementDetails gst_lame_details = {
"L.A.M.E. mp3 encoder",
"Filter/Encoder/Audio",
"High-quality free MP3 encoder",
VERSION,
"Erik Walthinsen <omega@cse.ogi.edu>",
"(C) 2000",
};
GST_PADTEMPLATE_FACTORY (gst_lame_sink_factory,
"sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_CAPS_NEW (
"gstlame_sink",
"audio/raw",
"format", GST_PROPS_STRING ("int"),
"law", GST_PROPS_INT (0),
"endianness", GST_PROPS_INT (G_BYTE_ORDER),
"signed", GST_PROPS_BOOLEAN (TRUE),
"width", GST_PROPS_INT (16),
"depth", GST_PROPS_INT (16),
"rate", GST_PROPS_INT_RANGE (8000, 48000),
"channels", GST_PROPS_INT_RANGE (1, 2)
)
)
GST_PADTEMPLATE_FACTORY (gst_lame_src_factory,
"src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_CAPS_NEW (
"gstlame_src",
"audio/mp3",
NULL
)
)
/********** Define useful types for non-programmatic interfaces **********/
#define GST_TYPE_LAME_MODE (gst_lame_mode_get_type())
static GType
gst_lame_mode_get_type (void)
{
static GType lame_mode_type = 0;
static GEnumValue lame_modes[] = {
{ 0, "0", "Stereo" },
{ 1, "1", "Joint-Stereo" },
{ 2, "2", "Dual channel" },
{ 3, "3", "Mono" },
{ 0, NULL, NULL },
};
if (!lame_mode_type) {
lame_mode_type = g_enum_register_static ("GstLameMode", lame_modes);
}
return lame_mode_type;
}
#define GST_TYPE_LAME_QUALITY (gst_lame_quality_get_type())
static GType
gst_lame_quality_get_type (void)
{
static GType lame_quality_type = 0;
static GEnumValue lame_quality[] = {
{ 0, "0", "0 - Best" },
{ 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" },
{ 9, "9", "9 - Worst" },
{ 0, NULL, NULL },
};
if (!lame_quality_type) {
lame_quality_type = g_enum_register_static ("GstLameQuality", lame_quality);
}
return lame_quality_type;
}
#define GST_TYPE_LAME_PADDING (gst_lame_padding_get_type())
static GType
gst_lame_padding_get_type (void)
{
static GType lame_padding_type = 0;
static GEnumValue lame_padding[] = {
{ 0, "0", "No Padding" },
{ 1, "1", "Always Pad" },
{ 2, "2", "Adjust Padding" },
{ 0, NULL, NULL },
};
if (!lame_padding_type) {
lame_padding_type = g_enum_register_static ("GstLamePadding", lame_padding);
}
return lame_padding_type;
}
/********** Standard stuff for signals and arguments **********/
/* GstLame signals and args */
enum {
/* FILL_ME */
LAST_SIGNAL
};
enum {
ARG_0,
ARG_BITRATE,
ARG_COMPRESSION_RATIO,
ARG_QUALITY,
ARG_MODE,
ARG_FORCE_MS,
ARG_FREE_FORMAT,
ARG_COPYRIGHT,
ARG_ORIGINAL,
ARG_ERROR_PROTECTION,
ARG_PADDING_TYPE,
ARG_EXTENSION,
ARG_STRICT_ISO,
ARG_DISABLE_RESERVOIR,
ARG_VBR,
ARG_VBR_MEAN_BITRATE,
ARG_VBR_MIN_BITRATE,
ARG_VBR_MAX_BITRATE,
ARG_VBR_HARD_MIN,
ARG_LOWPASS_FREQ,
ARG_LOWPASS_WIDTH,
ARG_HIGHPASS_FREQ,
ARG_HIGHPASS_WIDTH,
ARG_ATH_ONLY,
ARG_ATH_SHORT,
ARG_NO_ATH,
// ARG_ATH_TYPE, // note: CVS has this, 3.87 doesn't
ARG_ATH_LOWER,
ARG_CWLIMIT,
ARG_ALLOW_DIFF_SHORT,
ARG_NO_SHORT_BLOCKS,
ARG_EMPHASIS,
};
static void gst_lame_class_init (GstLameClass *klass);
static void gst_lame_init (GstLame *gst_lame);
static void gst_lame_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
static void gst_lame_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
static void gst_lame_chain (GstPad *pad, GstBuffer *buf);
static gboolean gst_lame_setup (GstLame *lame);
static GstElementClass *parent_class = NULL;
//static guint gst_lame_signals[LAST_SIGNAL] = { 0 };
GType
gst_lame_get_type (void)
{
static GType gst_lame_type = 0;
if (!gst_lame_type) {
static const GTypeInfo gst_lame_info = {
sizeof(GstLameClass), NULL,
NULL,
(GClassInitFunc)gst_lame_class_init,
NULL,
NULL,
sizeof(GstLame),
0,
(GInstanceInitFunc)gst_lame_init,
};
gst_lame_type = g_type_register_static (GST_TYPE_ELEMENT, "GstLame", &gst_lame_info, 0);
}
return gst_lame_type;
}
static void
gst_lame_class_init (GstLameClass *klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass*)klass;
gstelement_class = (GstElementClass*)klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_BITRATE,
g_param_spec_int("bitrate","bitrate","bitrate",
G_MININT,G_MAXINT,128,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_COMPRESSION_RATIO,
g_param_spec_float("compression_ratio","compression_ratio","compression_ratio",
0.0,200.0,11.0,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_QUALITY,
g_param_spec_enum("quality","quality","quality",
GST_TYPE_LAME_QUALITY,5,G_PARAM_READWRITE)); // CHECKME!
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_MODE,
g_param_spec_enum("mode","mode","mode",
GST_TYPE_LAME_MODE,0,G_PARAM_READWRITE)); // CHECKME!
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FORCE_MS,
g_param_spec_boolean("force_ms","force_ms","force_ms",
TRUE,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FREE_FORMAT,
g_param_spec_boolean("free_format","free_format","free_format",
TRUE,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_COPYRIGHT,
g_param_spec_boolean("copyright","copyright","copyright",
TRUE,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_ORIGINAL,
g_param_spec_boolean("original","original","original",
TRUE,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_ERROR_PROTECTION,
g_param_spec_boolean("error_protection","error_protection","error_protection",
TRUE,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_PADDING_TYPE,
g_param_spec_enum("padding_type","padding_type","padding_type",
GST_TYPE_LAME_PADDING,0,G_PARAM_READWRITE)); // CHECKME!
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_EXTENSION,
g_param_spec_boolean("extension","extension","extension",
TRUE,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_STRICT_ISO,
g_param_spec_boolean("strict_iso","strict_iso","strict_iso",
TRUE,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DISABLE_RESERVOIR,
g_param_spec_boolean("disable_reservoir","disable_reservoir","disable_reservoir",
TRUE,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_VBR,
g_param_spec_boolean("vbr","vbr","vbr",
TRUE,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_VBR_MEAN_BITRATE,
g_param_spec_int("vbr_mean_bitrate","vbr_mean_bitrate","vbr_mean_bitrate",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_VBR_MIN_BITRATE,
g_param_spec_int("vbr_min_bitrate","vbr_min_bitrate","vbr_min_bitrate",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_VBR_MAX_BITRATE,
g_param_spec_int("vbr_max_bitrate","vbr_max_bitrate","vbr_max_bitrate",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_VBR_HARD_MIN,
g_param_spec_int("vbr_hard_min","vbr_hard_min","vbr_hard_min",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_LOWPASS_FREQ,
g_param_spec_int("lowpass_freq","lowpass_freq","lowpass_freq",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_LOWPASS_WIDTH,
g_param_spec_int("lowpass_width","lowpass_width","lowpass_width",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_HIGHPASS_FREQ,
g_param_spec_int("highpass_freq","highpass_freq","highpass_freq",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_HIGHPASS_WIDTH,
g_param_spec_int("highpass_width","highpass_width","highpass_width",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_ATH_ONLY,
g_param_spec_boolean("ath_only","ath_only","ath_only",
TRUE,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_ATH_SHORT,
g_param_spec_boolean("ath_short","ath_short","ath_short",
TRUE,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_NO_ATH,
g_param_spec_boolean("no_ath","no_ath","no_ath",
TRUE,G_PARAM_READWRITE)); // CHECKME
// gtk_object_add_arg_type ("GstLame::ath_type", G_TYPE_INT,
// GTK_ARG_READWRITE, ARG_ATH_TYPE);
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_ATH_LOWER,
g_param_spec_int("ath_lower","ath_lower","ath_lower",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_CWLIMIT,
g_param_spec_int("cwlimit","cwlimit","cwlimit",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_ALLOW_DIFF_SHORT,
g_param_spec_boolean("allow_diff_short","allow_diff_short","allow_diff_short",
TRUE,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_NO_SHORT_BLOCKS,
g_param_spec_boolean("no_short_blocks","no_short_blocks","no_short_blocks",
TRUE,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_EMPHASIS,
g_param_spec_boolean("emphasis","emphasis","emphasis",
TRUE,G_PARAM_READWRITE)); // CHECKME
gobject_class->set_property = gst_lame_set_property;
gobject_class->get_property = gst_lame_get_property;
}
static void
gst_lame_newcaps (GstPad *pad, GstCaps *caps)
{
GstLame *lame;
lame = GST_LAME (gst_pad_get_parent (pad));
lame->samplerate = gst_caps_get_int (caps, "rate");
lame->num_channels = gst_caps_get_int (caps, "channels");
GST_DEBUG (0, "rate=%d, channels=%d\n", lame->samplerate, lame->num_channels);
gst_lame_setup (lame);
}
static void
gst_lame_init (GstLame *lame)
{
GST_DEBUG_ENTER("(\"%s\")", gst_element_get_name (GST_ELEMENT (lame)));
lame->sinkpad = gst_pad_new_from_template (GST_PADTEMPLATE_GET (gst_lame_sink_factory), "sink");
gst_element_add_pad (GST_ELEMENT (lame), lame->sinkpad);
gst_pad_set_chain_function (lame->sinkpad, gst_lame_chain);
gst_pad_set_newcaps_function (lame->sinkpad, gst_lame_newcaps);
lame->srcpad = gst_pad_new_from_template (GST_PADTEMPLATE_GET (gst_lame_src_factory), "src");
gst_element_add_pad (GST_ELEMENT (lame), lame->srcpad);
gst_pad_set_caps (lame->srcpad, gst_pad_get_padtemplate_caps (lame->srcpad));
GST_DEBUG (0,"setting up lame encoder\n");
lame->lgf = lame_init();
lame->samplerate = 44100;
lame->num_channels = 2;
lame->bitrate = lame_get_brate(lame->lgf);
lame->compression_ratio = lame_get_compression_ratio(lame->lgf);
lame->quality = lame_get_quality(lame->lgf);
lame->mode = lame_get_mode(lame->lgf);
lame->force_ms = lame_get_force_ms(lame->lgf);
lame->free_format = lame_get_free_format(lame->lgf);
lame->copyright = lame_get_copyright(lame->lgf);
lame->original = lame_get_original(lame->lgf);
lame->error_protection = lame_get_error_protection(lame->lgf);
lame->padding_type = lame_get_padding_type(lame->lgf);
lame->extension = lame_get_extension(lame->lgf);
lame->strict_iso = lame_get_strict_ISO(lame->lgf);
lame->disable_reservoir = lame_get_disable_reservoir(lame->lgf);
lame->vbr = lame_get_VBR_q(lame->lgf);
lame->vbr_mean_bitrate = lame_get_VBR_mean_bitrate_kbps(lame->lgf);
lame->vbr_min_bitrate = lame_get_VBR_min_bitrate_kbps(lame->lgf);
lame->vbr_max_bitrate = lame_get_VBR_max_bitrate_kbps(lame->lgf);
lame->vbr_hard_min = lame_get_VBR_hard_min(lame->lgf);
lame->lowpass_freq = lame_get_lowpassfreq(lame->lgf);
lame->lowpass_width = lame_get_lowpasswidth(lame->lgf);
lame->highpass_freq = lame_get_highpassfreq(lame->lgf);
lame->highpass_width = lame_get_highpasswidth(lame->lgf);
lame->ath_only = lame_get_ATHonly(lame->lgf);
lame->ath_short = lame_get_ATHshort(lame->lgf);
lame->no_ath = lame_get_noATH(lame->lgf);
// lame->ath_type = lame_get_ATHtype(lame->lgf);
lame->ath_lower = lame_get_ATHlower(lame->lgf);
lame->cwlimit = lame_get_cwlimit(lame->lgf);
lame->allow_diff_short = lame_get_allow_diff_short(lame->lgf);
lame->no_short_blocks = lame_get_no_short_blocks(lame->lgf);
lame->emphasis = lame_get_emphasis(lame->lgf);
GST_DEBUG (0,"done initializing lame element\n");;
}
static void
gst_lame_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
GstLame *lame;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_LAME (object));
lame = GST_LAME (object);
switch (prop_id) {
case ARG_BITRATE:
lame->bitrate = g_value_get_int (value);
break;
case ARG_COMPRESSION_RATIO:
lame->compression_ratio = g_value_get_float (value);
break;
case ARG_QUALITY:
lame->quality = g_value_get_int (value);
break;
case ARG_MODE:
lame->mode = g_value_get_int (value);
break;
case ARG_FORCE_MS:
lame->force_ms = g_value_get_boolean (value);
break;
case ARG_FREE_FORMAT:
lame->free_format = g_value_get_boolean (value);
break;
case ARG_COPYRIGHT:
lame->copyright = g_value_get_boolean (value);
break;
case ARG_ORIGINAL:
lame->original = g_value_get_boolean (value);
break;
case ARG_ERROR_PROTECTION:
lame->error_protection = g_value_get_boolean (value);
break;
case ARG_PADDING_TYPE:
lame->padding_type = g_value_get_int (value);
break;
case ARG_EXTENSION:
lame->extension = g_value_get_boolean (value);
break;
case ARG_STRICT_ISO:
lame->strict_iso = g_value_get_boolean (value);
break;
case ARG_DISABLE_RESERVOIR:
lame->disable_reservoir = g_value_get_boolean (value);
break;
case ARG_VBR:
lame->vbr = g_value_get_boolean (value);
break;
case ARG_VBR_MEAN_BITRATE:
lame->vbr_mean_bitrate = g_value_get_int (value);
break;
case ARG_VBR_MIN_BITRATE:
lame->vbr_min_bitrate = g_value_get_int (value);
break;
case ARG_VBR_MAX_BITRATE:
lame->vbr_max_bitrate = g_value_get_int (value);
break;
case ARG_VBR_HARD_MIN:
lame->vbr_hard_min = g_value_get_int (value);
break;
case ARG_LOWPASS_FREQ:
lame->lowpass_freq = g_value_get_int (value);
break;
case ARG_LOWPASS_WIDTH:
lame->lowpass_width = g_value_get_int (value);
break;
case ARG_HIGHPASS_FREQ:
lame->highpass_freq = g_value_get_int (value);
break;
case ARG_HIGHPASS_WIDTH:
lame->highpass_width = g_value_get_int (value);
break;
case ARG_ATH_ONLY:
lame->ath_only = g_value_get_boolean (value);
break;
case ARG_ATH_SHORT:
lame->ath_short = g_value_get_boolean (value);
break;
case ARG_NO_ATH:
lame->no_ath = g_value_get_boolean (value);
break;
// case ARG_ATH_TYPE:
// lame->ath_type = G_VALUE_INT (*arg);
// break;
case ARG_ATH_LOWER:
lame->ath_lower = g_value_get_int (value);
break;
case ARG_CWLIMIT:
lame->cwlimit = g_value_get_int (value);
break;
case ARG_ALLOW_DIFF_SHORT:
lame->allow_diff_short = g_value_get_boolean (value);
break;
case ARG_NO_SHORT_BLOCKS:
lame->no_short_blocks = g_value_get_boolean (value);
break;
case ARG_EMPHASIS:
lame->emphasis = g_value_get_boolean (value);
break;
default:
break;
}
}
static void
gst_lame_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
GstLame *lame;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_LAME (object));
lame = GST_LAME (object);
switch (prop_id) {
case ARG_BITRATE:
g_value_set_int (value, lame->bitrate);
break;
case ARG_COMPRESSION_RATIO:
g_value_set_float (value, lame->compression_ratio);
break;
case ARG_QUALITY:
g_value_set_enum (value, lame->quality);
break;
case ARG_MODE:
g_value_set_enum (value, lame->mode);
break;
case ARG_FORCE_MS:
g_value_set_boolean (value, lame->force_ms);
break;
case ARG_FREE_FORMAT:
g_value_set_boolean (value, lame->free_format);
break;
case ARG_COPYRIGHT:
g_value_set_boolean (value, lame->copyright);
break;
case ARG_ORIGINAL:
g_value_set_boolean (value, lame->original);
break;
case ARG_ERROR_PROTECTION:
g_value_set_boolean (value, lame->error_protection);
break;
case ARG_PADDING_TYPE:
g_value_set_enum (value, lame->padding_type);
break;
case ARG_EXTENSION:
g_value_set_boolean (value, lame->extension);
break;
case ARG_STRICT_ISO:
g_value_set_boolean (value, lame->strict_iso);
break;
case ARG_DISABLE_RESERVOIR:
g_value_set_boolean (value, lame->disable_reservoir);
break;
case ARG_VBR:
g_value_set_boolean (value, lame->vbr);
break;
case ARG_VBR_MEAN_BITRATE:
g_value_set_int (value, lame->vbr_mean_bitrate);
break;
case ARG_VBR_MIN_BITRATE:
g_value_set_int (value, lame->vbr_min_bitrate);
break;
case ARG_VBR_MAX_BITRATE:
g_value_set_int (value, lame->vbr_max_bitrate);
break;
case ARG_VBR_HARD_MIN:
g_value_set_int (value, lame->vbr_hard_min);
break;
case ARG_LOWPASS_FREQ:
g_value_set_int (value, lame->lowpass_freq);
break;
case ARG_LOWPASS_WIDTH:
g_value_set_int (value, lame->lowpass_width);
break;
case ARG_HIGHPASS_FREQ:
g_value_set_int (value, lame->highpass_freq);
break;
case ARG_HIGHPASS_WIDTH:
g_value_set_int (value, lame->highpass_width);
break;
case ARG_ATH_ONLY:
g_value_set_boolean (value, lame->ath_only);
break;
case ARG_ATH_SHORT:
g_value_set_boolean (value, lame->ath_short);
break;
case ARG_NO_ATH:
g_value_set_boolean (value, lame->no_ath);
break;
// case ARG_ATH_TYPE:
// G_VALUE_INT (*arg) = lame->ath_type;
// break;
case ARG_ATH_LOWER:
g_value_set_int (value, lame->ath_lower);
break;
case ARG_CWLIMIT:
g_value_set_int (value, lame->cwlimit);
break;
case ARG_ALLOW_DIFF_SHORT:
g_value_set_boolean (value, lame->allow_diff_short);
break;
case ARG_NO_SHORT_BLOCKS:
g_value_set_boolean (value, lame->no_short_blocks);
break;
case ARG_EMPHASIS:
g_value_set_boolean (value, lame->emphasis);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_lame_chain (GstPad *pad, GstBuffer *buf)
{
GstLame *lame;
GstBuffer *outbuf;
gchar *mp3_data;
gint mp3_buffer_size, mp3_size = 0;
g_return_if_fail (pad != NULL);
lame = GST_LAME (gst_pad_get_parent (pad));
GST_DEBUG (0,"entered\n");
mp3_buffer_size = ((GST_BUFFER_SIZE(buf) / (2+lame->num_channels)) * 1.25) + 7200;
mp3_data = g_malloc (mp3_buffer_size);
if (lame->num_channels == 2) {
mp3_size = lame_encode_buffer_interleaved (lame->lgf, (short int *)(GST_BUFFER_DATA (buf)),
GST_BUFFER_SIZE (buf) / 4, mp3_data, mp3_buffer_size);
}
else {
mp3_size = lame_encode_buffer (lame->lgf,
(short int *)(GST_BUFFER_DATA (buf)),
(short int *)(GST_BUFFER_DATA (buf)),
GST_BUFFER_SIZE (buf) / 2,
mp3_data, mp3_buffer_size);
}
GST_DEBUG (0,"encoded %d bytes of audio to %d bytes of mp3\n",GST_BUFFER_SIZE (buf), mp3_size);
gst_buffer_unref(buf);
if (mp3_size > 0) {
outbuf = gst_buffer_new ();
GST_BUFFER_DATA (outbuf) = mp3_data;
GST_BUFFER_SIZE (outbuf) = mp3_size;
gst_pad_push(lame->srcpad,outbuf);
}
else g_free (mp3_data);
}
/* transition to the READY state by configuring the gst_lame encoder */
static gboolean
gst_lame_setup (GstLame *lame)
{
GST_DEBUG_ENTER("(\"%s\")", gst_element_get_name (GST_ELEMENT (lame)));
// copy the parameters over
lame_set_in_samplerate(lame->lgf, lame->samplerate);
// force mono encoding if we only have one channel
if (lame->num_channels == 1)
lame->mode = 3;
lame_set_brate(lame->lgf, lame->bitrate);
lame_set_compression_ratio(lame->lgf, lame->compression_ratio);
lame_set_quality(lame->lgf, lame->quality);
lame_set_mode(lame->lgf, lame->mode);
lame_set_force_ms(lame->lgf, lame->force_ms);
lame_set_free_format(lame->lgf, lame->free_format);
lame_set_copyright(lame->lgf, lame->copyright);
lame_set_original(lame->lgf, lame->original);
lame_set_error_protection(lame->lgf, lame->error_protection);
lame_set_padding_type(lame->lgf, lame->padding_type);
lame_set_extension(lame->lgf, lame->extension);
lame_set_strict_ISO(lame->lgf, lame->strict_iso);
lame_set_disable_reservoir(lame->lgf, lame->disable_reservoir);
lame_set_VBR_q(lame->lgf, lame->vbr);
lame_set_VBR_mean_bitrate_kbps(lame->lgf, lame->vbr_mean_bitrate);
lame_set_VBR_min_bitrate_kbps(lame->lgf, lame->vbr_min_bitrate);
lame_set_VBR_max_bitrate_kbps(lame->lgf, lame->vbr_max_bitrate);
lame_set_VBR_hard_min(lame->lgf, lame->vbr_hard_min);
lame_set_lowpassfreq(lame->lgf, lame->lowpass_freq);
lame_set_lowpasswidth(lame->lgf, lame->lowpass_width);
lame_set_highpassfreq(lame->lgf, lame->highpass_freq);
lame_set_highpasswidth(lame->lgf, lame->highpass_width);
lame_set_ATHonly(lame->lgf, lame->ath_only);
lame_set_ATHshort(lame->lgf, lame->ath_short);
lame_set_noATH(lame->lgf, lame->no_ath);
// lame_set_ATHtype(lame->lgf, lame->ath_type);
lame_set_ATHlower(lame->lgf, lame->ath_lower);
lame_set_cwlimit(lame->lgf, lame->cwlimit);
lame_set_allow_diff_short(lame->lgf, lame->allow_diff_short);
lame_set_no_short_blocks(lame->lgf, lame->no_short_blocks);
lame_set_emphasis(lame->lgf, lame->emphasis);
// initialize the lame encoder
if (lame_init_params(lame->lgf) < 0) {
GST_DEBUG (0,"error initializinglame library\n");
return FALSE;
}
GST_DEBUG_LEAVE("");
return TRUE;
}
static GstElementStateReturn
gst_lame_change_state (GstElement *element)
{
g_return_val_if_fail (GST_IS_LAME (element), GST_STATE_FAILURE);
GST_DEBUG (0,"state pending %d\n", GST_STATE_PENDING (element));
/* if going down into NULL state, close the file if it's open */
if (GST_STATE_PENDING (element) == GST_STATE_READY) {
gst_lame_setup(GST_LAME(element));
}
/* if we haven't failed already, give the parent class a chance to ;-) */
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
return GST_STATE_SUCCESS;
}
static gboolean
plugin_init (GModule *module, GstPlugin *plugin)
{
GstElementFactory *factory;
/* create an elementfactory for the gst_lame element */
factory = gst_elementfactory_new ("lame", GST_TYPE_LAME,
&gst_lame_details);
g_return_val_if_fail (factory != NULL, FALSE);
/* register the source's padtemplate */
gst_elementfactory_add_padtemplate (factory,
GST_PADTEMPLATE_GET (gst_lame_src_factory));
/* register the sink's padtemplate */
gst_elementfactory_add_padtemplate (factory,
GST_PADTEMPLATE_GET (gst_lame_sink_factory));
/* and add the gst_lame element factory to the plugin */
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
return TRUE;
}
GstPluginDesc plugin_desc = {
GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"lame",
plugin_init
};
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