mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-12-30 20:20:38 +00:00
Code Issues 1 Projects Releases Wiki Activity
gstreamer/ext/lame/gstlame.c
Thomas Vander Stichele fd183e8d6c doh 
Original commit message from CVS:
doh
2005-11-22 17:15:25 +00:00

1180 lines
37 KiB
C
Raw Blame History

/* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "string.h"
#include "gstlame.h"
#ifdef lame_set_preset
#define GST_LAME_PRESET
#endif
GST_DEBUG_CATEGORY_STATIC (debug);
#define GST_CAT_DEFAULT debug
/* 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 **********/
/* 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_LOWER,
ARG_CWLIMIT,
ARG_ALLOW_DIFF_SHORT,
ARG_NO_SHORT_BLOCKS,
ARG_EMPHASIS,
ARG_VBR_QUALITY,
#ifdef GSTLAME_PRESET
ARG_XINGHEADER,
ARG_PRESET
#else
ARG_XINGHEADER
#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;
/* 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),
gst_lame_base_init,
NULL,
(GClassInitFunc) gst_lame_class_init,
NULL,
NULL,
sizeof (GstLame),
0,
(GInstanceInitFunc) gst_lame_init,
};
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_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_ref (GST_TYPE_ELEMENT);
gobject_class->set_property = gst_lame_set_property;
gobject_class->get_property = gst_lame_get_property;
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BITRATE,
g_param_spec_int ("bitrate", "Bitrate (kb/s)", "Bitrate in kbit/sec",
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 bitrate", 0, G_MAXINT, 0, 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 min bitrate", 0, G_MAXINT, 0, 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 max bitrate", 0, G_MAXINT, 0, 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 hard min bitrate", 0, G_MAXINT, 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", 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_lame_change_state;
}
static gboolean
gst_lame_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstLame *lame;
gint out_samplerate;
GstStructure *structure;
GstCaps *othercaps;
lame = GST_LAME (gst_pad_get_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, "sink_setcaps, 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;
othercaps =
gst_caps_new_simple ("audio/mpeg",
"mpegversion", G_TYPE_INT, 1,
"layer", G_TYPE_INT, 3,
"channels", G_TYPE_INT, 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_ELEMENT_ERROR (lame, CORE, NEGOTIATION, (NULL),
("no rate specified in input"));
return FALSE;
}
no_channels:
{
GST_ELEMENT_ERROR (lame, CORE, NEGOTIATION, (NULL),
("no channels specified in input"));
return FALSE;
}
zero_output_rate:
{
GST_ELEMENT_ERROR (lame, CORE, NEGOTIATION, (NULL),
("lame decided on a zero sample rate"));
return FALSE;
}
setup_failed:
{
GST_ELEMENT_ERROR (lame, CORE, NEGOTIATION, (NULL),
("could not initialize encoder (wrong parameters?)"));
return FALSE;
}
}
static void
gst_lame_init (GstLame * lame)
{
GST_DEBUG_OBJECT (lame, "starting initialization");
lame->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_lame_sink_template), "sink");
gst_pad_set_event_function (lame->sinkpad, gst_lame_sink_event);
gst_pad_set_chain_function (lame->sinkpad, gst_lame_chain);
gst_pad_set_setcaps_function (lame->sinkpad, gst_lame_sink_setcaps);
gst_element_add_pad (GST_ELEMENT (lame), lame->sinkpad);
lame->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_lame_src_template), "src");
gst_element_add_pad (GST_ELEMENT (lame), lame->srcpad);
/* create an encoder state so we can ask about defaults */
lame->lgf = lame_init ();
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->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;
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 = 320; /* lame_get_VBR_max_bitrate_kbps (lame->lgf);
* => 0/no vbr possible */
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->xingheader = FALSE;
lame->preset = 0;
lame_close (lame->lgf);
lame->lgf = NULL;
GST_DEBUG_OBJECT (lame, "done initializing");
}
typedef struct _GstLameTagMatch GstLameTagMatch;
typedef void (*GstLameTagFunc) (lame_global_flags * gfp, const char *value);
struct _GstLameTagMatch
{
gchar *gstreamer_tag;
GstLameTagFunc tag_func;
};
static GstLameTagMatch tag_matches[] = {
{GST_TAG_TITLE, id3tag_set_title},
{GST_TAG_DATE, id3tag_set_year},
{GST_TAG_TRACK_NUMBER, id3tag_set_track},
{GST_TAG_COMMENT, id3tag_set_comment},
{GST_TAG_ARTIST, id3tag_set_artist},
{GST_TAG_ALBUM, id3tag_set_album},
{GST_TAG_GENRE, (GstLameTagFunc) id3tag_set_genre},
{NULL, NULL}
};
static void
add_one_tag (const GstTagList * list, const gchar * tag, gpointer user_data)
{
GstLame *lame;
gchar *value;
int i = 0;
lame = GST_LAME (user_data);
g_return_if_fail (lame != NULL);
while (tag_matches[i].gstreamer_tag != NULL) {
if (strcmp (tag, tag_matches[i].gstreamer_tag) == 0) {
break;
}
i++;
}
if (tag_matches[i].tag_func == NULL) {
GST_WARNING_OBJECT (lame,
"Couldn't find matching gstreamer tag for \"%s\"", tag);
return;
}
switch (gst_tag_get_type (tag)) {
case G_TYPE_UINT:{
guint ivalue;
if (!gst_tag_list_get_uint (list, tag, &ivalue)) {
GST_WARNING_OBJECT (lame, "Error reading \"%s\" tag value", tag);
return;
}
value = g_strdup_printf ("%u", ivalue);
break;
}
case G_TYPE_STRING:
if (!gst_tag_list_get_string (list, tag, &value)) {
GST_WARNING_OBJECT (lame, "Error reading \"%s\" tag value", tag);
return;
};
break;
default:
GST_WARNING_OBJECT (lame, "Couldn't write tag %s", tag);
break;
}
tag_matches[i].tag_func (lame->lgf, value);
if (gst_tag_get_type (tag) == G_TYPE_UINT) {
g_free (value);
}
}
static void
gst_lame_set_metadata (GstLame * lame)
{
const GstTagList *user_tags;
GstTagList *copy;
g_return_if_fail (lame != NULL);
user_tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (lame));
if ((lame->tags == NULL) && (user_tags == NULL)) {
return;
}
copy = gst_tag_list_merge (user_tags, lame->tags,
gst_tag_setter_get_tag_merge_mode (GST_TAG_SETTER (lame)));
gst_tag_list_foreach ((GstTagList *) copy, add_one_tag, lame);
gst_tag_list_free (copy);
}
static void
gst_lame_set_property (GObject * object, guint prop_id, const GValue * value,
GParamSpec * pspec)
{
GstLame *lame;
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_enum (value);
break;
case ARG_MODE:
lame->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:
lame->xingheader = g_value_get_boolean (value);
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;
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_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:
g_value_set_boolean (value, lame->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)
{
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");
/* FIXME, push last data packet */
gst_pad_push_event (lame->srcpad, event);
break;
case GST_EVENT_FLUSH_START:
GST_DEBUG_OBJECT (lame, "handling FLUSH start event");
/* forward event */
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);
gst_pad_push_event (lame->srcpad, event);
break;
}
case GST_EVENT_TAG:
GST_DEBUG_OBJECT (lame, "handling TAG event");
if (lame->tags) {
GstTagList *taglist;
gst_event_parse_tag (event, &taglist),
gst_tag_list_insert (lame->tags, taglist,
gst_tag_setter_get_tag_merge_mode (GST_TAG_SETTER (lame)));
} else {
g_assert_not_reached ();
}
gst_pad_push_event (lame->srcpad, event);
break;
default:
gst_pad_push_event (lame->srcpad, event);
break;
}
return TRUE;
}
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;
lame = GST_LAME (gst_pad_get_parent (pad));
GST_LOG_OBJECT (lame, "entered chain");
if (!lame->setup)
goto not_setup;
num_samples = GST_BUFFER_SIZE (buf) / 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 *) (GST_BUFFER_DATA (buf)),
(short int *) (GST_BUFFER_DATA (buf)),
num_samples, mp3_data, mp3_buffer_size);
} else {
mp3_size = lame_encode_buffer_interleaved (lame->lgf,
(short int *) (GST_BUFFER_DATA (buf)),
num_samples / lame->num_channels, mp3_data, mp3_buffer_size);
}
GST_LOG_OBJECT (lame, "encoded %d bytes of audio to %d bytes of mp3",
GST_BUFFER_SIZE (buf), mp3_size);
duration = (GST_SECOND * GST_BUFFER_SIZE (buf) /
(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_ts = GST_CLOCK_TIME_NONE;
} else {
g_free (mp3_data);
result = GST_FLOW_OK;
}
gst_object_unref (lame);
return result;
/* ERRORS */
not_setup:
{
gst_buffer_unref (buf);
GST_ELEMENT_ERROR (lame, CORE, NEGOTIATION, (NULL),
("encoder not initialized (input is not audio?)"));
gst_object_unref (lame);
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;
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 ();
id3tag_init (lame->lgf);
/* let lame choose a default samplerate */
lame_set_out_samplerate (lame->lgf, 0);
/* 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;
CHECK_ERROR (lame_set_num_channels (lame->lgf, lame->num_channels));
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_ERROR (lame_set_VBR_min_bitrate_kbps (lame->lgf,
lame->vbr_min_bitrate));
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, lame->xingheader ? 1 : 0));
#ifdef GSTLAME_PRESET
if (lame->preset > 0) {
CHECK_ERROR (lame_set_preset (lame->lgf, lame->preset));
}
#endif
gst_lame_set_metadata (lame);
/* 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_NULL_TO_READY:
lame->tags = gst_tag_list_new ();
case GST_STATE_CHANGE_READY_TO_PAUSED:
lame->last_ts = GST_CLOCK_TIME_NONE;
break;
default:
break;
}
/* if we haven't failed already, give the parent class a chance to ;-) */
result = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_NULL:
gst_tag_list_free (lame->tags);
break;
default:
break;
}
return result;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
if (!gst_element_register (plugin, "lame", GST_RANK_NONE, GST_TYPE_LAME))
return FALSE;
GST_DEBUG_CATEGORY_INIT (debug, "lame", 0, "lame mp3 encoder");
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"lame",
"Encode MP3's with LAME",
plugin_init, VERSION, "LGPL", GST_PACKAGE, GST_ORIGIN)
Reference in a new issue View git blame Copy permalink