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gstreamer/ext/lame/gstlame.c
Zaheer Abbas Merali eb9865f6f8 ext/lame/gstlame.*: Fix the case where you initially have stereo input, and so lame's mode is not set to mono, and th... 
Original commit message from CVS:
* ext/lame/gstlame.c:
* ext/lame/gstlame.h:
Fix the case where you initially have stereo input, and so lame's
mode is not set to mono, and then you get input with mono audio and
soon after you get stereo input again. What happened before this
commit is that it would keep the encoding mode as mono. It should
change it back to the one requested by the app (or the default one)
if not requested.
2008-01-17 17:26:48 +00:00

1329 lines
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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2004> Wim Taymans <wim@fluendo.com>
* Copyright (C) <2005> Thomas Vander Stichele <thomas at apestaart dot org>
*
* 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.
*/
/**
* SECTION:element-lame
* @short_description: an encoder that encodes audio to MPEG-1 layer 3 (mp3)
* @see_also: mad, vorbisenc
*
* <refsect2>
* <para>
* This element encodes raw integer audio into an MPEG-1 layer 3 (MP3) stream.
* Note that <ulink url="http://en.wikipedia.org/wiki/MP3">MP3</ulink> is not
* a free format, there are licensing and patent issues to take into
* consideration. See <ulink url="http://www.vorbis.com/">Ogg/Vorbis</ulink>
* for a royalty free (and often higher quality) alternative.
* </para>
* <title>Output sample rate</title>
* <para>
* If no fixed output sample rate is negotiated on the element's src pad,
* the element will choose an optimal sample rate to resample to internally.
* For example, a 16-bit 44.1 KHz mono audio stream encoded at 48 kbit will
* get resampled to 32 KHz. Use filter caps on the src pad to force a
* particular sample rate.
* </para>
* <title>Writing metadata (tags)</title>
* <para>
* Whilst the lame encoder element does claim to implement the GstTagSetter
* interface, it does so only for backwards compatibility reasons. Tag writing
* has been removed from lame. Use external elements like id3v2mux or apev2mux
* to add tags to your MP3 streams. The same goes for XING headers: use the
* xingmux element to add XING headers to your VBR mp3 file.
* </para>
* <title>Example pipelines</title>
* <para>
* Encode a test sine signal to MP3.
* </para>
* <programlisting>
* gst-launch -v audiotestsrc wave=sine num-buffers=100 ! audioconvert ! lame ! filesink location=sine.mp3
* </programlisting>
* <para>
* Record from a sound card using ALSA and encode to MP3
* </para>
* <programlisting>
* gst-launch -v alsasrc ! audioconvert ! lame bitrate=192 ! filesink location=alsasrc.mp3
* </programlisting>
* <para>
* Transcode from a .wav file to MP3 (the id3v2mux element is optional):
* </para>
* <programlisting>
* gst-launch -v filesrc location=music.wav ! decodebin ! audioconvert ! audioresample ! lame bitrate=192 ! id3v2mux ! filesink location=music.mp3
* </programlisting>
* <para>
* Encode Audio CD track 5 to MP3:
* </para>
* <programlisting>
* gst-launch -v cdda://5 ! audioconvert ! lame bitrate=192 ! filesink location=track5.mp3
* </programlisting>
* <para>
* Encode to a fixed sample rate:
* </para>
* <programlisting>
* gst-launch -v audiotestsrc num-buffers=10 ! audio/x-raw-int,rate=44100,channels=1 ! lame bitrate=48 mode=3 ! filesink location=test.mp3
* </programlisting>
* </refsect2>
*
* Last reviewed on 2007-07-24 (0.10.7)
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "string.h"
#include "gstlame.h"
#include "gst/gst-i18n-plugin.h"
#ifdef lame_set_preset
#define GST_LAME_PRESET
#endif
GST_DEBUG_CATEGORY_STATIC (debug);
#define GST_CAT_DEFAULT debug
#define DEFAULT_MIN_VBR_BITRATE 112
#define DEFAULT_MAX_VBR_BITRATE 160
#define DEFAULT_MEAN_VBR_BITRATE 128
/* elementfactory information */
static GstElementDetails gst_lame_details = {
"L.A.M.E. mp3 encoder",
"Codec/Encoder/Audio",
"High-quality free MP3 encoder",
"Erik Walthinsen <omega@cse.ogi.edu>, " "Wim Taymans <wim@fluendo.com>",
};
/* LAME can do MPEG-1, MPEG-2, and MPEG-2.5, so it has 9 possible
* sample rates it supports */
static GstStaticPadTemplate gst_lame_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"endianness = (int) " G_STRINGIFY (G_BYTE_ORDER) ", "
"signed = (boolean) true, "
"width = (int) 16, "
"depth = (int) 16, "
"rate = (int) { 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000 }, "
"channels = (int) [ 1, 2 ]")
);
static GstStaticPadTemplate gst_lame_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/mpeg, "
"mpegversion = (int) 1, "
"layer = (int) 3, "
"rate = (int) { 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000 }, "
"channels = (int) [ 1, 2 ]")
);
/********** 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, "Stereo", "stereo"},
{1, "Joint Stereo", "joint"},
{2, "Dual Channel", "dual"},
{3, "Mono", "mono"},
{4, "Auto", "auto"},
{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 - Best", "0"},
{1, "1", "1"},
{2, "2", "2"},
{3, "3", "3"},
{4, "4", "4"},
{5, "5 - Default", "5"},
{6, "6", "6"},
{7, "7", "7"},
{8, "8", "8"},
{9, "9 - Worst", "9"},
{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, "No Padding", "never"},
{1, "Always Pad", "always"},
{2, "Adjust Padding", "adjust"},
{0, NULL, NULL}
};
if (!lame_padding_type) {
lame_padding_type = g_enum_register_static ("GstLamePadding", lame_padding);
}
return lame_padding_type;
}
#define GST_TYPE_LAME_VBRMODE (gst_lame_vbrmode_get_type())
static GType
gst_lame_vbrmode_get_type (void)
{
static GType lame_vbrmode_type = 0;
static GEnumValue lame_vbrmode[] = {
{vbr_off, "No VBR (Constant Bitrate)", "none"},
{vbr_rh, "Lame's old VBR algorithm", "old"},
{vbr_abr, "VBR Average Bitrate", "abr"},
{vbr_mtrh, "Lame's new VBR algorithm", "new"},
{0, NULL, NULL}
};
if (!lame_vbrmode_type) {
lame_vbrmode_type = g_enum_register_static ("GstLameVbrmode", lame_vbrmode);
}
return lame_vbrmode_type;
}
#ifdef GSTLAME_PRESET
#define GST_TYPE_LAME_PRESET (gst_lame_preset_get_type())
static GType
gst_lame_preset_get_type (void)
{
static GType gst_lame_preset = 0;
static GEnumValue gst_lame_presets[] = {
{0, "None", "none"},
{MEDIUM, "Medium", "medium"},
{STANDARD, "Standard", "standard"},
{EXTREME, "Extreme", "extreme"},
{INSANE, "Insane", "insane"},
{0, NULL, NULL}
};
if (!gst_lame_preset) {
gst_lame_preset =
g_enum_register_static ("GstLamePreset", gst_lame_presets);
}
return gst_lame_preset;
}
#endif
/********** Standard stuff for signals and arguments **********/
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_LOWER,
ARG_CWLIMIT,
ARG_ALLOW_DIFF_SHORT,
ARG_NO_SHORT_BLOCKS,
ARG_EMPHASIS,
ARG_VBR_QUALITY,
#ifdef GSTLAME_PRESET
ARG_XINGHEADER, /* FIXME: remove in 0.11 */
ARG_PRESET
#else
ARG_XINGHEADER /* FIXME: remove in 0.11 */
#endif
};
static void gst_lame_base_init (gpointer g_class);
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 gboolean gst_lame_sink_event (GstPad * pad, GstEvent * event);
static GstFlowReturn gst_lame_chain (GstPad * pad, GstBuffer * buf);
static gboolean gst_lame_setup (GstLame * lame);
static GstStateChangeReturn gst_lame_change_state (GstElement * element,
GstStateChange transition);
static GstElementClass *parent_class = NULL;
GType
gst_lame_get_type (void)
{
static GType gst_lame_type = 0;
if (!gst_lame_type) {
static const GTypeInfo gst_lame_info = {
sizeof (GstLameClass),
gst_lame_base_init,
NULL,
(GClassInitFunc) gst_lame_class_init,
NULL,
NULL,
sizeof (GstLame),
0,
(GInstanceInitFunc) gst_lame_init,
};
/* FIXME: remove support for the GstTagSetter interface in 0.11 */
static const GInterfaceInfo tag_setter_info = {
NULL,
NULL,
NULL
};
gst_lame_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstLame", &gst_lame_info, 0);
g_type_add_interface_static (gst_lame_type, GST_TYPE_TAG_SETTER,
&tag_setter_info);
}
return gst_lame_type;
}
static void
gst_lame_release_memory (GstLame * lame)
{
if (lame->lgf) {
lame_close (lame->lgf);
lame->lgf = NULL;
}
}
static void
gst_lame_finalize (GObject * obj)
{
gst_lame_release_memory (GST_LAME (obj));
G_OBJECT_CLASS (parent_class)->finalize (obj);
}
static void
gst_lame_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_lame_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_lame_sink_template));
gst_element_class_set_details (element_class, &gst_lame_details);
}
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_peek_parent (klass);
gobject_class->set_property = gst_lame_set_property;
gobject_class->get_property = gst_lame_get_property;
gobject_class->finalize = gst_lame_finalize;
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BITRATE,
g_param_spec_int ("bitrate", "Bitrate (kb/s)",
"Bitrate in kbit/sec (8, 16, 24, 32, 40, 48, 56, 64, 80, 96, "
"112, 128, 160, 192, 224, 256 or 320)",
8, 320, 128, G_PARAM_READWRITE));
/* compression ratio set to 0.0 by default otherwise it overrides the bitrate setting */
g_object_class_install_property (G_OBJECT_CLASS (klass),
ARG_COMPRESSION_RATIO, g_param_spec_float ("compression_ratio",
"Compression Ratio",
"let lame choose bitrate to achieve selected compression ratio", 0.0,
200.0, 0.0, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_QUALITY,
g_param_spec_enum ("quality", "Quality",
"Quality of algorithm used for encoding", GST_TYPE_LAME_QUALITY, 5,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MODE,
g_param_spec_enum ("mode", "Mode", "Encoding mode", GST_TYPE_LAME_MODE, 0,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FORCE_MS,
g_param_spec_boolean ("force-ms", "Force ms",
"Force ms_stereo on all frames", TRUE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FREE_FORMAT,
g_param_spec_boolean ("free-format", "Free format",
"Produce a free format bitstream", TRUE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_COPYRIGHT,
g_param_spec_boolean ("copyright", "Copyright", "Mark as copyright", TRUE,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ORIGINAL,
g_param_spec_boolean ("original", "Original", "Mark as non-original",
TRUE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ERROR_PROTECTION,
g_param_spec_boolean ("error-protection", "Error protection",
"Adds 16 bit checksum to every frame", TRUE, G_PARAM_READWRITE));
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));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_EXTENSION,
g_param_spec_boolean ("extension", "Extension", "Extension", TRUE,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_STRICT_ISO,
g_param_spec_boolean ("strict-iso", "Strict ISO",
"Comply as much as possible to ISO MPEG spec", TRUE,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass),
ARG_DISABLE_RESERVOIR, g_param_spec_boolean ("disable-reservoir",
"Disable reservoir", "Disable the bit reservoir", TRUE,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_VBR,
g_param_spec_enum ("vbr", "VBR", "Specify bitrate mode",
GST_TYPE_LAME_VBRMODE, vbr_off, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_VBR_QUALITY,
g_param_spec_enum ("vbr-quality", "VBR Quality", "VBR Quality",
GST_TYPE_LAME_QUALITY, 5, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_VBR_MEAN_BITRATE,
g_param_spec_int ("vbr-mean-bitrate", "VBR mean bitrate",
"Specify mean VBR bitrate", 8, 320,
DEFAULT_MEAN_VBR_BITRATE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_VBR_MIN_BITRATE,
g_param_spec_int ("vbr-min-bitrate", "VBR min bitrate",
"Specify minimum VBR bitrate (8, 16, 24, 32, 40, 48, 56, 64, 80, 96, "
"112, 128, 160, 192, 224, 256 or 320)",
8, 320, DEFAULT_MIN_VBR_BITRATE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_VBR_MAX_BITRATE,
g_param_spec_int ("vbr-max-bitrate", "VBR max bitrate",
"Specify maximum VBR bitrate (8, 16, 24, 32, 40, 48, 56, 64, 80, 96, "
"112, 128, 160, 192, 224, 256 or 320)",
8, 320, DEFAULT_MAX_VBR_BITRATE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_VBR_HARD_MIN,
g_param_spec_int ("vbr-hard-min", "VBR hard min",
"Specify whether min VBR bitrate is a hard limit. Normally, "
"it can be violated for silence", 0, 1, 0, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LOWPASS_FREQ,
g_param_spec_int ("lowpass-freq", "Lowpass freq",
"frequency(kHz), lowpass filter cutoff above freq", 0, 50000, 0,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LOWPASS_WIDTH,
g_param_spec_int ("lowpass-width", "Lowpass width",
"frequency(kHz) - default 15% of lowpass freq", 0, G_MAXINT, 0,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_HIGHPASS_FREQ,
g_param_spec_int ("highpass-freq", "Highpass freq",
"frequency(kHz), highpass filter cutoff below freq", 0, 50000, 0,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_HIGHPASS_WIDTH,
g_param_spec_int ("highpass-width", "Highpass width",
"frequency(kHz) - default 15% of highpass freq", 0, G_MAXINT, 0,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ATH_ONLY,
g_param_spec_boolean ("ath-only", "ATH only",
"Ignore GPSYCHO completely, use ATH only", TRUE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ATH_SHORT,
g_param_spec_boolean ("ath-short", "ATH short",
"Ignore GPSYCHO for short blocks, use ATH only", TRUE,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_NO_ATH,
g_param_spec_boolean ("no-ath", "No ath",
"turns ATH down to a flat noise floor", TRUE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ATH_LOWER,
g_param_spec_int ("ath-lower", "ATH lower", "lowers ATH by x dB",
G_MININT, G_MAXINT, 0, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CWLIMIT,
g_param_spec_int ("cwlimit", "Cwlimit",
"Compute tonality up to freq (in kHz) default 8.8717", 0, 50000, 0,
G_PARAM_READWRITE));
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));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_NO_SHORT_BLOCKS,
g_param_spec_boolean ("no-short-blocks", "No short blocks",
"Do not use short blocks", TRUE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_EMPHASIS,
g_param_spec_boolean ("emphasis", "Emphasis", "Emphasis", TRUE,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_XINGHEADER,
g_param_spec_boolean ("xingheader", "Output Xing Header",
"Output Xing Header (BROKEN, use xingmux instead)",
FALSE, G_PARAM_READWRITE));
#ifdef GSTLAME_PRESET
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_PRESET,
g_param_spec_enum ("preset", "Lame Preset", "Lame Preset",
GST_TYPE_LAME_PRESET, 0, G_PARAM_READWRITE));
#endif
gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_lame_change_state);
}
static gboolean
gst_lame_src_setcaps (GstPad * pad, GstCaps * caps)
{
GST_DEBUG_OBJECT (pad, "caps: %" GST_PTR_FORMAT, caps);
return TRUE;
}
static gboolean
gst_lame_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstLame *lame;
gint out_samplerate;
GstStructure *structure;
GstCaps *othercaps;
lame = GST_LAME (GST_PAD_PARENT (pad));
structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (structure, "rate", &lame->samplerate))
goto no_rate;
if (!gst_structure_get_int (structure, "channels", &lame->num_channels))
goto no_channels;
GST_DEBUG_OBJECT (lame, "setting up lame");
if (!gst_lame_setup (lame))
goto setup_failed;
out_samplerate = lame_get_out_samplerate (lame->lgf);
if (out_samplerate == 0)
goto zero_output_rate;
if (out_samplerate != lame->samplerate) {
GST_WARNING_OBJECT (lame,
"output samplerate %d is different from incoming samplerate %d",
out_samplerate, lame->samplerate);
}
othercaps =
gst_caps_new_simple ("audio/mpeg",
"mpegversion", G_TYPE_INT, 1,
"layer", G_TYPE_INT, 3,
"channels", G_TYPE_INT, lame->mode == MONO ? 1 : lame->num_channels,
"rate", G_TYPE_INT, out_samplerate, NULL);
/* and use these caps */
gst_pad_set_caps (lame->srcpad, othercaps);
gst_caps_unref (othercaps);
return TRUE;
no_rate:
{
GST_ERROR_OBJECT (lame, "input caps have no sample rate field");
return FALSE;
}
no_channels:
{
GST_ERROR_OBJECT (lame, "input caps have no channels field");
return FALSE;
}
zero_output_rate:
{
GST_ELEMENT_ERROR (lame, LIBRARY, SETTINGS, (NULL),
("LAME decided on a zero sample rate"));
return FALSE;
}
setup_failed:
{
GST_ELEMENT_ERROR (lame, LIBRARY, SETTINGS,
(_("Failed to configure LAME encoder. Check your encoding parameters.")), NULL);
return FALSE;
}
}
static void
gst_lame_init (GstLame * lame)
{
GST_DEBUG_OBJECT (lame, "starting initialization");
lame->sinkpad =
gst_pad_new_from_static_template (&gst_lame_sink_template, "sink");
gst_pad_set_event_function (lame->sinkpad,
GST_DEBUG_FUNCPTR (gst_lame_sink_event));
gst_pad_set_chain_function (lame->sinkpad,
GST_DEBUG_FUNCPTR (gst_lame_chain));
gst_pad_set_setcaps_function (lame->sinkpad,
GST_DEBUG_FUNCPTR (gst_lame_sink_setcaps));
gst_element_add_pad (GST_ELEMENT (lame), lame->sinkpad);
lame->srcpad =
gst_pad_new_from_static_template (&gst_lame_src_template, "src");
gst_pad_set_setcaps_function (lame->srcpad,
GST_DEBUG_FUNCPTR (gst_lame_src_setcaps));
gst_element_add_pad (GST_ELEMENT (lame), lame->srcpad);
/* create an encoder state so we can ask about defaults */
lame->lgf = lame_init ();
if (lame->lgf == NULL)
goto init_error;
if (lame_init_params (lame->lgf) < 0)
goto init_error;
lame->samplerate = 44100;
lame->num_channels = 2;
lame->setup = FALSE;
lame->bitrate = 128; /* lame_get_brate (lame->lgf);
* => 0/out of range */
lame->compression_ratio = 0.0; /* lame_get_compression_ratio (lame->lgf);
* => 0/out of range ...
* NOTE: 0.0 makes bitrate take precedence */
lame->quality = 5; /* lame_get_quality (lame->lgf);
* => -1/out of range */
lame->mode = lame_get_mode (lame->lgf);
lame->requested_mode = lame->mode;
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 = vbr_off; /* lame_get_VBR (lame->lgf); */
lame->vbr_quality = 5;
#if 0
/* Replaced by our own more informative constants,
rather than LAME's defaults */
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 = 0; /* lame_get_VBR_max_bitrate_kbps (lame->lgf);
* => 0/no vbr possible */
#else
lame->vbr_mean_bitrate = DEFAULT_MEAN_VBR_BITRATE;
lame->vbr_min_bitrate = DEFAULT_MIN_VBR_BITRATE;
lame->vbr_max_bitrate = DEFAULT_MAX_VBR_BITRATE;
#endif
lame->vbr_hard_min = lame_get_VBR_hard_min (lame->lgf);
/* lame->lowpass_freq = 50000; lame_get_lowpassfreq (lame->lgf);
* => 0/lowpass on everything ? */
lame->lowpass_freq = 0;
lame->lowpass_width = 0; /* lame_get_lowpasswidth (lame->lgf);
* => -1/out of range */
lame->highpass_freq = lame_get_highpassfreq (lame->lgf);
lame->highpass_width = 0; /* lame_get_highpasswidth (lame->lgf);
* => -1/out of range */
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 = 8.8717; /* lame_get_cwlimit (lame->lgf); => 0 */
lame->allow_diff_short = lame_get_allow_diff_short (lame->lgf);
lame->no_short_blocks = TRUE; /* lame_get_no_short_blocks (lame->lgf); */
lame->emphasis = lame_get_emphasis (lame->lgf);
lame->preset = 0;
lame_close (lame->lgf);
lame->lgf = NULL;
GST_DEBUG_OBJECT (lame, "done initializing");
lame->init_error = FALSE;
return;
/* ERRORS */
init_error:
{
GST_ERROR_OBJECT (lame, "error initializing");
lame->init_error = TRUE;
if (lame->lgf) {
lame_close (lame->lgf);
lame->lgf = NULL;
}
}
}
/* <php-emulation-mode>three underscores for ___rate is really really really
* private as opposed to one underscore<php-emulation-mode> */
/* call this MACRO outside of the NULL state so that we have a higher chance
* of actually having a pipeline and bus to get the message through */
#define CHECK_AND_FIXUP_BITRATE(obj,param,rate,free_format) \
G_STMT_START { \
gint ___rate = rate; \
gint maxrate = 320; \
gint multiplier = 64; \
if (!free_format) { \
if (rate <= 64) { \
maxrate = 64; multiplier = 8; \
if ((rate % 8) != 0) ___rate = GST_ROUND_UP_8 (rate); \
} else if (rate <= 128) { \
maxrate = 128; multiplier = 16; \
if ((rate % 16) != 0) ___rate = GST_ROUND_UP_16 (rate); \
} else if (rate <= 256) { \
maxrate = 256; multiplier = 32; \
if ((rate % 32) != 0) ___rate = GST_ROUND_UP_32 (rate); \
} else if (rate <= 320) { \
maxrate = 320; multiplier = 64; \
if ((rate % 64) != 0) ___rate = GST_ROUND_UP_64 (rate); \
} \
if (___rate != rate) { \
GST_ELEMENT_WARNING (obj, LIBRARY, SETTINGS, \
(_("The requested bitrate %d kbit/s for property '%s' " \
"is not allowed. " \
"The bitrate was changed to %d kbit/s."), rate, \
param, ___rate), \
("A bitrate below %d should be a multiple of %d.", \
maxrate, multiplier)); \
rate = ___rate; \
} \
} \
} G_STMT_END
static void
gst_lame_set_property (GObject * object, guint prop_id, const GValue * value,
GParamSpec * pspec)
{
GstLame *lame;
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_enum (value);
break;
case ARG_MODE:
lame->requested_mode = g_value_get_enum (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_enum (value);
break;
case ARG_VBR_QUALITY:
lame->vbr_quality = g_value_get_enum (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_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;
case ARG_XINGHEADER:
break;
#ifdef GSTLAME_PRESET
case ARG_PRESET:
lame->preset = g_value_get_enum (value);
break;
#endif
default:
break;
}
}
static void
gst_lame_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstLame *lame;
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->requested_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_enum (value, lame->vbr);
break;
case ARG_VBR_QUALITY:
g_value_set_enum (value, lame->vbr_quality);
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_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;
case ARG_XINGHEADER:
break;
#ifdef GSTLAME_PRESET
case ARG_PRESET:
g_value_set_enum (value, lame->preset);
break;
#endif
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_lame_sink_event (GstPad * pad, GstEvent * event)
{
gboolean ret;
GstLame *lame;
lame = GST_LAME (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:{
GST_DEBUG_OBJECT (lame, "handling EOS event");
if (lame->lgf != NULL) {
GstBuffer *buf;
gint size;
buf = gst_buffer_new_and_alloc (7200);
size = lame_encode_flush (lame->lgf, GST_BUFFER_DATA (buf), 7200);
if (size > 0 && lame->last_flow == GST_FLOW_OK) {
gint64 duration;
duration = gst_util_uint64_scale (size, 8 * GST_SECOND,
1000 * lame->bitrate);
if (lame->last_ts == GST_CLOCK_TIME_NONE) {
lame->last_ts = lame->eos_ts;
lame->last_duration = duration;
} else {
lame->last_duration += duration;
}
GST_BUFFER_TIMESTAMP (buf) = lame->last_ts;
GST_BUFFER_DURATION (buf) = lame->last_duration;
lame->last_ts = GST_CLOCK_TIME_NONE;
GST_BUFFER_SIZE (buf) = size;
GST_DEBUG_OBJECT (lame, "pushing final packet of %u bytes", size);
gst_buffer_set_caps (buf, GST_PAD_CAPS (lame->srcpad));
gst_pad_push (lame->srcpad, buf);
} else {
GST_DEBUG_OBJECT (lame, "no final packet (size=%d, last_flow=%s)",
size, gst_flow_get_name (lame->last_flow));
gst_buffer_unref (buf);
}
}
ret = gst_pad_event_default (pad, event);
break;
}
case GST_EVENT_FLUSH_START:
GST_DEBUG_OBJECT (lame, "handling FLUSH start event");
/* forward event */
ret = gst_pad_push_event (lame->srcpad, event);
break;
case GST_EVENT_FLUSH_STOP:
{
guchar *mp3_data = NULL;
gint mp3_buffer_size, mp3_size = 0;
GST_DEBUG_OBJECT (lame, "handling FLUSH stop event");
/* clear buffers */
mp3_buffer_size = 7200;
mp3_data = g_malloc (mp3_buffer_size);
mp3_size = lame_encode_flush (lame->lgf, mp3_data, mp3_buffer_size);
ret = gst_pad_push_event (lame->srcpad, event);
break;
}
case GST_EVENT_TAG:
GST_DEBUG_OBJECT (lame, "ignoring TAG event, passing it on");
ret = gst_pad_push_event (lame->srcpad, event);
break;
default:
ret = gst_pad_event_default (pad, event);
break;
}
gst_object_unref (lame);
return ret;
}
static GstFlowReturn
gst_lame_chain (GstPad * pad, GstBuffer * buf)
{
GstLame *lame;
guchar *mp3_data;
gint mp3_buffer_size, mp3_size;
gint64 duration;
GstFlowReturn result;
gint num_samples;
guint8 *data;
guint size;
lame = GST_LAME (GST_PAD_PARENT (pad));
GST_LOG_OBJECT (lame, "entered chain");
if (lame->init_error)
goto init_error;
if (!lame->setup)
goto not_setup;
data = GST_BUFFER_DATA (buf);
size = GST_BUFFER_SIZE (buf);
num_samples = size / 2;
/* allocate space for output */
mp3_buffer_size = 1.25 * num_samples + 7200;
mp3_data = g_malloc (mp3_buffer_size);
/* lame seems to be too stupid to get mono interleaved going */
if (lame->num_channels == 1) {
mp3_size = lame_encode_buffer (lame->lgf,
(short int *) data,
(short int *) data, num_samples, mp3_data, mp3_buffer_size);
} else {
mp3_size = lame_encode_buffer_interleaved (lame->lgf,
(short int *) data,
num_samples / lame->num_channels, mp3_data, mp3_buffer_size);
}
GST_LOG_OBJECT (lame, "encoded %d bytes of audio to %d bytes of mp3",
size, mp3_size);
duration = gst_util_uint64_scale_int (size, GST_SECOND,
2 * lame->samplerate * lame->num_channels);
if (GST_BUFFER_DURATION (buf) != GST_CLOCK_TIME_NONE &&
GST_BUFFER_DURATION (buf) != duration) {
GST_DEBUG_OBJECT (lame, "incoming buffer had incorrect duration %"
GST_TIME_FORMAT ", outgoing buffer will have correct duration %"
GST_TIME_FORMAT,
GST_TIME_ARGS (GST_BUFFER_DURATION (buf)), GST_TIME_ARGS (duration));
}
if (lame->last_ts == GST_CLOCK_TIME_NONE) {
lame->last_ts = GST_BUFFER_TIMESTAMP (buf);
lame->last_offs = GST_BUFFER_OFFSET (buf);
lame->last_duration = duration;
} else {
lame->last_duration += duration;
}
gst_buffer_unref (buf);
if (mp3_size < 0) {
g_warning ("error %d", mp3_size);
}
if (mp3_size > 0) {
GstBuffer *outbuf;
outbuf = gst_buffer_new ();
GST_BUFFER_DATA (outbuf) = mp3_data;
GST_BUFFER_MALLOCDATA (outbuf) = mp3_data;
GST_BUFFER_SIZE (outbuf) = mp3_size;
GST_BUFFER_TIMESTAMP (outbuf) = lame->last_ts;
GST_BUFFER_OFFSET (outbuf) = lame->last_offs;
GST_BUFFER_DURATION (outbuf) = lame->last_duration;
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (lame->srcpad));
result = gst_pad_push (lame->srcpad, outbuf);
lame->last_flow = result;
if (result != GST_FLOW_OK) {
GST_DEBUG_OBJECT (lame, "flow return: %s", gst_flow_get_name (result));
}
if (GST_CLOCK_TIME_IS_VALID (lame->last_ts))
lame->eos_ts = lame->last_ts + lame->last_duration;
else
lame->eos_ts = GST_CLOCK_TIME_NONE;
lame->last_ts = GST_CLOCK_TIME_NONE;
} else {
g_free (mp3_data);
result = GST_FLOW_OK;
}
return result;
/* ERRORS */
not_setup:
{
gst_buffer_unref (buf);
GST_ELEMENT_ERROR (lame, CORE, NEGOTIATION, (NULL),
("encoder not initialized (input is not audio?)"));
return GST_FLOW_ERROR;
}
init_error:
{
gst_buffer_unref (buf);
GST_ELEMENT_ERROR (lame, LIBRARY, INIT, (NULL), (NULL));
return GST_FLOW_ERROR;
}
}
/* set up the encoder state */
static gboolean
gst_lame_setup (GstLame * lame)
{
#define CHECK_ERROR(command) G_STMT_START {\
if ((command) < 0) { \
GST_ERROR_OBJECT (lame, "setup failed: " G_STRINGIFY (command)); \
return FALSE; \
} \
}G_STMT_END
int retval;
GstCaps *allowed_caps;
GST_DEBUG_OBJECT (lame, "starting setup");
/* check if we're already setup; if we are, we might want to check
* if this initialization is compatible with the previous one */
/* FIXME: do this */
if (lame->setup) {
GST_WARNING_OBJECT (lame, "already setup");
lame->setup = FALSE;
}
lame->lgf = lame_init ();
if (lame->lgf == NULL)
return FALSE;
/* copy the parameters over */
lame_set_in_samplerate (lame->lgf, lame->samplerate);
/* let lame choose default samplerate unless outgoing sample rate is fixed */
allowed_caps = gst_pad_get_allowed_caps (lame->srcpad);
if (allowed_caps != NULL) {
GstStructure *structure;
gint samplerate;
structure = gst_caps_get_structure (allowed_caps, 0);
if (gst_structure_get_int (structure, "rate", &samplerate)) {
GST_DEBUG_OBJECT (lame, "Setting sample rate to %d as fixed in src caps",
samplerate);
lame_set_out_samplerate (lame->lgf, samplerate);
} else {
GST_DEBUG_OBJECT (lame, "Letting lame choose sample rate");
lame_set_out_samplerate (lame->lgf, 0);
}
} else {
GST_DEBUG_OBJECT (lame, "No peer yet, letting lame choose sample rate");
lame_set_out_samplerate (lame->lgf, 0);
}
/* force mono encoding if we only have one channel */
if (lame->num_channels == 1)
lame->mode = 3;
else
lame->mode = lame->requested_mode;
CHECK_ERROR (lame_set_num_channels (lame->lgf, lame->num_channels));
CHECK_AND_FIXUP_BITRATE (lame, "bitrate", lame->bitrate, lame->free_format);
CHECK_ERROR (lame_set_brate (lame->lgf, lame->bitrate));
CHECK_ERROR (lame_set_compression_ratio (lame->lgf, lame->compression_ratio));
CHECK_ERROR (lame_set_quality (lame->lgf, lame->quality));
CHECK_ERROR (lame_set_mode (lame->lgf, lame->mode));
CHECK_ERROR (lame_set_force_ms (lame->lgf, lame->force_ms));
CHECK_ERROR (lame_set_free_format (lame->lgf, lame->free_format));
CHECK_ERROR (lame_set_copyright (lame->lgf, lame->copyright));
CHECK_ERROR (lame_set_original (lame->lgf, lame->original));
CHECK_ERROR (lame_set_error_protection (lame->lgf, lame->error_protection));
CHECK_ERROR (lame_set_padding_type (lame->lgf, lame->padding_type));
CHECK_ERROR (lame_set_extension (lame->lgf, lame->extension));
CHECK_ERROR (lame_set_strict_ISO (lame->lgf, lame->strict_iso));
CHECK_ERROR (lame_set_disable_reservoir (lame->lgf, lame->disable_reservoir));
CHECK_ERROR (lame_set_VBR (lame->lgf, lame->vbr));
CHECK_ERROR (lame_set_VBR_q (lame->lgf, lame->vbr_quality));
CHECK_ERROR (lame_set_VBR_mean_bitrate_kbps (lame->lgf,
lame->vbr_mean_bitrate));
CHECK_AND_FIXUP_BITRATE (lame, "vbr-min-bitrate", lame->vbr_min_bitrate,
lame->free_format);
CHECK_ERROR (lame_set_VBR_min_bitrate_kbps (lame->lgf,
lame->vbr_min_bitrate));
CHECK_AND_FIXUP_BITRATE (lame, "vbr-max-bitrate", lame->vbr_max_bitrate,
lame->free_format);
CHECK_ERROR (lame_set_VBR_max_bitrate_kbps (lame->lgf,
lame->vbr_max_bitrate));
CHECK_ERROR (lame_set_VBR_hard_min (lame->lgf, lame->vbr_hard_min));
CHECK_ERROR (lame_set_lowpassfreq (lame->lgf, lame->lowpass_freq));
CHECK_ERROR (lame_set_lowpasswidth (lame->lgf, lame->lowpass_width));
CHECK_ERROR (lame_set_highpassfreq (lame->lgf, lame->highpass_freq));
CHECK_ERROR (lame_set_highpasswidth (lame->lgf, lame->highpass_width));
CHECK_ERROR (lame_set_ATHonly (lame->lgf, lame->ath_only));
CHECK_ERROR (lame_set_ATHshort (lame->lgf, lame->ath_short));
CHECK_ERROR (lame_set_noATH (lame->lgf, lame->no_ath));
CHECK_ERROR (lame_set_ATHlower (lame->lgf, lame->ath_lower));
CHECK_ERROR (lame_set_cwlimit (lame->lgf, lame->cwlimit));
CHECK_ERROR (lame_set_allow_diff_short (lame->lgf, lame->allow_diff_short));
CHECK_ERROR (lame_set_no_short_blocks (lame->lgf, lame->no_short_blocks));
CHECK_ERROR (lame_set_emphasis (lame->lgf, lame->emphasis));
CHECK_ERROR (lame_set_bWriteVbrTag (lame->lgf, 0));
#ifdef GSTLAME_PRESET
if (lame->preset > 0) {
CHECK_ERROR (lame_set_preset (lame->lgf, lame->preset));
}
#endif
/* initialize the lame encoder */
if ((retval = lame_init_params (lame->lgf)) >= 0) {
lame->setup = TRUE;
/* FIXME: it would be nice to print out the mode here */
GST_INFO ("lame encoder setup (%d kbit/s, %d Hz, %d channels)",
lame->bitrate, lame->samplerate, lame->num_channels);
} else {
GST_ERROR_OBJECT (lame, "lame_init_params returned %d", retval);
}
GST_DEBUG_OBJECT (lame, "done with setup");
return lame->setup;
#undef CHECK_ERROR
}
static GstStateChangeReturn
gst_lame_change_state (GstElement * element, GstStateChange transition)
{
GstLame *lame;
GstStateChangeReturn result;
lame = GST_LAME (element);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
lame->last_flow = GST_FLOW_OK;
lame->last_ts = GST_CLOCK_TIME_NONE;
lame->eos_ts = GST_CLOCK_TIME_NONE;
break;
default:
break;
}
result = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_NULL:
gst_lame_release_memory (lame);
break;
default:
break;
}
return result;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
GST_DEBUG_CATEGORY_INIT (debug, "lame", 0, "lame mp3 encoder");
#ifdef ENABLE_NLS
GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE,
LOCALEDIR);
bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
#endif /* ENABLE_NLS */
if (!gst_element_register (plugin, "lame", GST_RANK_NONE, GST_TYPE_LAME))
return FALSE;
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"lame",
"Encode MP3s with LAME",
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);
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