/* GStreamer * Copyright (C) <1999> Erik Walthinsen * * 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" /* elementfactory information */ static GstElementDetails gst_lame_details = { "L.A.M.E. mp3 encoder", "Codec/Audio/Encoder", "LGPL", "High-quality free MP3 encoder", VERSION, "Erik Walthinsen ", "(C) 2000", }; GST_PAD_TEMPLATE_FACTORY (gst_lame_sink_factory, "sink", GST_PAD_SINK, GST_PAD_ALWAYS, GST_CAPS_NEW ( "gstlame_sink", "audio/x-raw-int", "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_LIST ( GST_PROPS_INT (8000), GST_PROPS_INT (11025), GST_PROPS_INT (12000), GST_PROPS_INT (16000), GST_PROPS_INT (22050), GST_PROPS_INT (24000), GST_PROPS_INT (32000), GST_PROPS_INT (44100), GST_PROPS_INT (48000) ), "channels", GST_PROPS_INT_RANGE (1, 2) ) ) GST_PAD_TEMPLATE_FACTORY (gst_lame_src_factory, "src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_CAPS_NEW ( "gstlame_src", "audio/mpeg", "mpegversion", GST_PROPS_INT (1), "layer", GST_PROPS_INT (3), "rate", GST_PROPS_LIST ( GST_PROPS_INT (8000), GST_PROPS_INT (11025), GST_PROPS_INT (12000), GST_PROPS_INT (16000), GST_PROPS_INT (22050), GST_PROPS_INT (24000), GST_PROPS_INT (32000), GST_PROPS_INT (44100), GST_PROPS_INT (48000) ), "channels", GST_PROPS_INT_RANGE (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, "0", "Stereo" }, { 1, "1", "Joint-Stereo" }, { 2, "2", "Dual channel" }, { 3, "3", "Mono" }, { 4, "4", "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", "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_LOWER, ARG_CWLIMIT, ARG_ALLOW_DIFF_SHORT, ARG_NO_SHORT_BLOCKS, ARG_EMPHASIS, ARG_METADATA, }; 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, GstData *_data); static gboolean gst_lame_setup (GstLame *lame); static GstElementStateReturn gst_lame_change_state (GstElement *element); 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 (kb/s)", "Bitrate in kbit/sec", 8, 320, 128, G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_COMPRESSION_RATIO, g_param_spec_float ("compression_ratio", "Compression Ratio", "choose bitrate to achive selected compression ratio", 1.0, 200.0, 11.0, G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_QUALITY, g_param_spec_enum ("quality", "Quality", "Encoding Quality", 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_boolean ("vbr", "VBR", "Use variable bitrate", TRUE, 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_METADATA, g_param_spec_boxed ("metadata", "Metadata", "Metadata to add to the stream,", GST_TYPE_CAPS, G_PARAM_READWRITE)); gobject_class->set_property = gst_lame_set_property; gobject_class->get_property = gst_lame_get_property; gstelement_class->change_state = gst_lame_change_state; } static GstPadLinkReturn gst_lame_sinkconnect (GstPad *pad, GstCaps *caps) { GstLame *lame; gint out_samplerate; lame = GST_LAME (gst_pad_get_parent (pad)); if (!GST_CAPS_IS_FIXED (caps)) { GST_DEBUG ("caps on lame pad %s:%s not fixed, delayed", GST_DEBUG_PAD_NAME (pad)); return GST_PAD_LINK_DELAYED; } gst_caps_get_int (caps, "rate", &lame->samplerate); gst_caps_get_int (caps, "channels", &lame->num_channels); if (!gst_lame_setup (lame)) { gst_element_error (GST_ELEMENT (lame), "could not initialize encoder (wrong parameters?)"); return GST_PAD_LINK_REFUSED; } out_samplerate = lame_get_out_samplerate (lame->lgf); caps = GST_CAPS_NEW ("lame_src_caps", "audio/mpeg", "mpegversion", GST_PROPS_INT (1), "layer", GST_PROPS_INT (3), "channels", GST_PROPS_INT (lame->num_channels), "rate", GST_PROPS_INT (out_samplerate)); return gst_pad_try_set_caps (lame->srcpad, caps); } static void gst_lame_init (GstLame *lame) { GST_DEBUG_OBJECT (lame, "starting initialization"); lame->sinkpad = gst_pad_new_from_template (GST_PAD_TEMPLATE_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_link_function (lame->sinkpad, gst_lame_sinkconnect); lame->srcpad = gst_pad_new_from_template (GST_PAD_TEMPLATE_GET (gst_lame_src_factory), "src"); gst_element_add_pad (GST_ELEMENT (lame), lame->srcpad); GST_FLAG_SET (lame, GST_ELEMENT_EVENT_AWARE); GST_DEBUG ("setting up lame encoder"); lame->lgf = lame_init (); lame->samplerate = 44100; lame->num_channels = 2; lame->initialized = FALSE; 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); lame->metadata = GST_CAPS_NEW ( "lame_metadata", "application/x-gst-metadata", "comment", GST_PROPS_STRING ("Track encoded with GStreamer"), "year", GST_PROPS_STRING (""), "tracknumber", GST_PROPS_STRING (""), "title", GST_PROPS_STRING (""), "artist", GST_PROPS_STRING (""), "album", GST_PROPS_STRING (""), "genre", GST_PROPS_STRING ("") ); id3tag_init (lame->lgf); GST_DEBUG_OBJECT (lame, "done initializing"); } static void gst_lame_add_metadata (GstLame *lame, GstCaps *caps) { GList *props; GstPropsEntry *prop; if (caps == NULL) return; props = gst_caps_get_props (caps)->properties; while (props) { prop = (GstPropsEntry*)(props->data); props = g_list_next(props); if (gst_props_entry_get_props_type (prop) == GST_PROPS_STRING_TYPE) { const gchar *name = gst_props_entry_get_name (prop); const gchar *value; gst_props_entry_get_string (prop, &value); if (!value || strlen (value) == 0) continue; if (strcmp (name, "comment") == 0) { id3tag_set_comment (lame->lgf, value); } else if (strcmp (name, "date") == 0) { id3tag_set_year (lame->lgf, value); } else if (strcmp (name, "tracknumber") == 0) { id3tag_set_track (lame->lgf, value); } else if (strcmp (name, "title") == 0) { id3tag_set_title (lame->lgf, value); } else if (strcmp (name, "artist") == 0) { id3tag_set_artist (lame->lgf, value); } else if (strcmp (name, "album") == 0) { id3tag_set_album (lame->lgf, value); } else if (strcmp (name, "genre") == 0) { id3tag_set_genre (lame->lgf, value); } } } } 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_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_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_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_METADATA: lame->metadata = g_value_get_boxed (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_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_METADATA: g_value_set_static_boxed (value, lame->metadata); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_lame_chain (GstPad *pad, GstData *_data) { GstBuffer *buf = GST_BUFFER (_data); GstLame *lame; GstBuffer *outbuf; gchar *mp3_data = NULL; gint mp3_buffer_size, mp3_size = 0; gboolean eos = FALSE; lame = GST_LAME (gst_pad_get_parent (pad)); GST_DEBUG ("entered chain"); if (GST_IS_EVENT (buf)) { switch (GST_EVENT_TYPE (buf)) { case GST_EVENT_EOS: eos = TRUE; case GST_EVENT_FLUSH: mp3_buffer_size = 7200; mp3_data = g_malloc (mp3_buffer_size); mp3_size = lame_encode_flush (lame->lgf, mp3_data, mp3_buffer_size); gst_event_unref (GST_EVENT (buf)); break; default: gst_pad_event_default (pad, GST_EVENT (buf)); break; } } else { gint64 duration; if (!lame->initialized) { gst_buffer_unref (buf); gst_element_error (GST_ELEMENT (lame), "encoder not initialized (input is not audio?)"); return; } /* allocate space for output */ 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 ( "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 ( "mad: incoming buffer had incorrect duration %lld, " "outgoing buffer will have correct duration %lld", GST_BUFFER_DURATION (buf), 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) { outbuf = gst_buffer_new (); GST_BUFFER_DATA (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_pad_push (lame->srcpad,GST_DATA (outbuf)); lame->last_ts = GST_CLOCK_TIME_NONE; } else { g_free (mp3_data); } if (eos) { gst_pad_push (lame->srcpad, GST_DATA (gst_event_new (GST_EVENT_EOS))); gst_element_set_eos (GST_ELEMENT (lame)); } } /* transition to the READY state by configuring the gst_lame encoder */ static gboolean gst_lame_setup (GstLame *lame) { GST_DEBUG_OBJECT (lame, "starting setup"); /* check if we're already initialized; if we are, we might want to check * if this initialization is compatible with the previous one */ /* FIXME: do this */ if (lame->initialized) g_warning ("already initialized"); /* 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_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); gst_lame_add_metadata (lame, lame->metadata); /* initialize the lame encoder */ if (lame_init_params (lame->lgf) < 0) { lame->initialized = FALSE; } else { lame->initialized = TRUE; /* FIXME: it would be nice to print out the mode here */ GST_INFO ( "lame encoder initialized (%d kbit/s, %d Hz, %d channels)", lame->bitrate, lame->samplerate, lame->num_channels); } GST_DEBUG_OBJECT (lame, "done with setup"); return lame->initialized; } static GstElementStateReturn gst_lame_change_state (GstElement *element) { GstLame *lame; g_return_val_if_fail (GST_IS_LAME (element), GST_STATE_FAILURE); lame = GST_LAME (element); GST_DEBUG ("state pending %d", GST_STATE_PENDING (element)); switch (GST_STATE_TRANSITION (element)) { case GST_STATE_READY_TO_PAUSED: lame->last_ts = GST_CLOCK_TIME_NONE; break; case GST_STATE_READY_TO_NULL: if (lame->initialized) { lame_close (lame->lgf); lame->initialized = FALSE; } break; default: break; } /* 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_element_factory_new ("lame", GST_TYPE_LAME, &gst_lame_details); g_return_val_if_fail (factory != NULL, FALSE); /* register the source's padtemplate */ gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (gst_lame_src_factory)); /* register the sink's padtemplate */ gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_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 };