diff options
Diffstat (limited to 'ext/twolame')
| -rw-r--r-- | ext/twolame/Makefile.am | 12 | ||||
| -rw-r--r-- | ext/twolame/Makefile.in | 830 | ||||
| -rw-r--r-- | ext/twolame/gsttwolamemp2enc.c | 891 | ||||
| -rw-r--r-- | ext/twolame/gsttwolamemp2enc.h | 88 |
4 files changed, 1821 insertions, 0 deletions
diff --git a/ext/twolame/Makefile.am b/ext/twolame/Makefile.am new file mode 100644 index 0000000..b6de82c --- /dev/null +++ b/ext/twolame/Makefile.am @@ -0,0 +1,12 @@ +plugin_LTLIBRARIES = libgsttwolame.la + +libgsttwolame_la_SOURCES = gsttwolamemp2enc.c +libgsttwolame_la_CFLAGS = \ + $(GST_PLUGINS_BASE_CFLAGS) $(GST_CFLAGS) $(TWOLAME_CFLAGS) +libgsttwolame_la_LIBADD = $(GST_PLUGINS_BASE_LIBS) \ + -lgstaudio-@GST_API_VERSION@ -lgstpbutils-@GST_API_VERSION@ \ + $(GST_LIBS) $(TWOLAME_LIBS) +libgsttwolame_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) +libgsttwolame_la_LIBTOOLFLAGS = $(GST_PLUGIN_LIBTOOLFLAGS) + +noinst_HEADERS = gsttwolamemp2enc.h diff --git a/ext/twolame/Makefile.in b/ext/twolame/Makefile.in new file mode 100644 index 0000000..3017506 --- /dev/null +++ b/ext/twolame/Makefile.in @@ -0,0 +1,830 @@ +# Makefile.in generated by automake 1.14.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2013 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; 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mostlyclean-generic mostlyclean-libtool \ + pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \ + uninstall-pluginLTLIBRARIES + + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/ext/twolame/gsttwolamemp2enc.c b/ext/twolame/gsttwolamemp2enc.c new file mode 100644 index 0000000..12b6f5a --- /dev/null +++ b/ext/twolame/gsttwolamemp2enc.c @@ -0,0 +1,891 @@ +/* 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> + * Copyright (C) <2008> Sebastian Dröge <sebastian.droege@collabora.co.uk> + * + * 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., 51 Franklin St, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +/* + * Based on the lame element. + */ + +/** + * SECTION:element-twolame + * @see_also: mad, lame + * + * This element encodes raw integer audio into an MPEG-1 layer 2 (MP2) stream. + * + * <refsect2> + * <title>Example pipelines</title> + * |[ + * gst-launch -v audiotestsrc wave=sine num-buffers=100 ! audioconvert ! twolame ! filesink location=sine.mp2 + * ]| Encode a test sine signal to MP2. + * |[ + * gst-launch -v alsasrc ! audioconvert ! twolame bitrate=192 ! filesink location=alsasrc.mp2 + * ]| Record from a sound card using ALSA and encode to MP2 + * |[ + * gst-launch -v filesrc location=music.wav ! decodebin ! audioconvert ! audioresample ! twolame bitrate=192 ! id3v2mux ! filesink location=music.mp2 + * ]| Transcode from a .wav file to MP2 (the id3v2mux element is optional) + * |[ + * gst-launch -v cdda://5 ! audioconvert ! twolame bitrate=192 ! filesink location=track5.mp2 + * ]| Encode Audio CD track 5 to MP2 + * </refsect2> + * + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "string.h" +#include "gsttwolamemp2enc.h" +#include "gst/gst-i18n-plugin.h" + +GST_DEBUG_CATEGORY_STATIC (debug); +#define GST_CAT_DEFAULT debug + +/* TwoLAME can do MPEG-1, MPEG-2 so it has 6 possible + * sample rates it supports */ +static GstStaticPadTemplate gst_two_lame_sink_template = + GST_STATIC_PAD_TEMPLATE ("sink", + GST_PAD_SINK, + GST_PAD_ALWAYS, + GST_STATIC_CAPS ("audio/x-raw, " + "format = (string) { " GST_AUDIO_NE (F32) ", " GST_AUDIO_NE (S16) " }, " + "layout = (string) interleaved, " + "rate = (int) { 16000, 22050, 24000, 32000, 44100, 48000 }, " + "channels = (int) 1; " + "audio/x-raw, " + "format = (string) { " GST_AUDIO_NE (F32) ", " GST_AUDIO_NE (S16) " }, " + "layout = (string) interleaved, " + "rate = (int) { 16000, 22050, 24000, 32000, 44100, 48000 }, " + "channels = (int) 2," "channel-mask = (bitmask) 0x3") + ); + +static GstStaticPadTemplate gst_two_lame_src_template = +GST_STATIC_PAD_TEMPLATE ("src", + GST_PAD_SRC, + GST_PAD_ALWAYS, + GST_STATIC_CAPS ("audio/mpeg, " + "mpegversion = (int) 1, " + "layer = (int) 2, " + "rate = (int) { 16000, 22050, 24000, 32000, 44100, 48000 }, " + "channels = (int) [ 1, 2 ]") + ); + +static struct +{ + gint mode; + gint psymodel; + gint bitrate; + gint padding; + gboolean energy_level_extension; + gint emphasis; + gboolean error_protection; + gboolean copyright; + gboolean original; + gboolean vbr; + gfloat vbr_level; + gfloat ath_level; + gint vbr_max_bitrate; + gboolean quick_mode; + gint quick_mode_count; +} gst_two_lame_default_settings; + +/********** Define useful types for non-programmatic interfaces **********/ +#define GST_TYPE_TWO_LAME_MODE (gst_two_lame_mode_get_type()) +static GType +gst_two_lame_mode_get_type (void) +{ + static GType two_lame_mode_type = 0; + static GEnumValue two_lame_modes[] = { + {TWOLAME_AUTO_MODE, "Auto", "auto"}, + {TWOLAME_STEREO, "Stereo", "stereo"}, + {TWOLAME_JOINT_STEREO, "Joint Stereo", "joint"}, + {TWOLAME_DUAL_CHANNEL, "Dual Channel", "dual"}, + {TWOLAME_MONO, "Mono", "mono"}, + {0, NULL, NULL} + }; + + if (!two_lame_mode_type) { + two_lame_mode_type = + g_enum_register_static ("GstTwoLameMode", two_lame_modes); + } + return two_lame_mode_type; +} + +#define GST_TYPE_TWO_LAME_PADDING (gst_two_lame_padding_get_type()) +static GType +gst_two_lame_padding_get_type (void) +{ + static GType two_lame_padding_type = 0; + static GEnumValue two_lame_padding[] = { + {TWOLAME_PAD_NO, "No Padding", "never"}, + {TWOLAME_PAD_ALL, "Always Pad", "always"}, + {0, NULL, NULL} + }; + + if (!two_lame_padding_type) { + two_lame_padding_type = + g_enum_register_static ("GstTwoLamePadding", two_lame_padding); + } + return two_lame_padding_type; +} + +#define GST_TYPE_TWO_LAME_EMPHASIS (gst_two_lame_emphasis_get_type()) +static GType +gst_two_lame_emphasis_get_type (void) +{ + static GType two_lame_emphasis_type = 0; + static GEnumValue two_lame_emphasis[] = { + {TWOLAME_EMPHASIS_N, "No emphasis", "none"}, + {TWOLAME_EMPHASIS_5, "50/15 ms", "5"}, + {TWOLAME_EMPHASIS_C, "CCIT J.17", "ccit"}, + {0, NULL, NULL} + }; + + if (!two_lame_emphasis_type) { + two_lame_emphasis_type = + g_enum_register_static ("GstTwoLameEmphasis", two_lame_emphasis); + } + + return two_lame_emphasis_type; +} + +/********** Standard stuff for signals and arguments **********/ + +enum +{ + ARG_0, + ARG_MODE, + ARG_PSYMODEL, + ARG_BITRATE, + ARG_PADDING, + ARG_ENERGY_LEVEL_EXTENSION, + ARG_EMPHASIS, + ARG_ERROR_PROTECTION, + ARG_COPYRIGHT, + ARG_ORIGINAL, + ARG_VBR, + ARG_VBR_LEVEL, + ARG_ATH_LEVEL, + ARG_VBR_MAX_BITRATE, + ARG_QUICK_MODE, + ARG_QUICK_MODE_COUNT +}; + +static gboolean gst_two_lame_start (GstAudioEncoder * enc); +static gboolean gst_two_lame_stop (GstAudioEncoder * enc); +static gboolean gst_two_lame_set_format (GstAudioEncoder * enc, + GstAudioInfo * info); +static GstFlowReturn gst_two_lame_handle_frame (GstAudioEncoder * enc, + GstBuffer * in_buf); +static void gst_two_lame_flush (GstAudioEncoder * enc); + +static void gst_two_lame_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec); +static void gst_two_lame_get_property (GObject * object, guint prop_id, + GValue * value, GParamSpec * pspec); +static gboolean gst_two_lame_setup (GstTwoLame * twolame); + +G_DEFINE_TYPE (GstTwoLame, gst_two_lame, GST_TYPE_AUDIO_ENCODER); + +static void +gst_two_lame_release_memory (GstTwoLame * twolame) +{ + if (twolame->glopts) { + twolame_close (&twolame->glopts); + twolame->glopts = NULL; + } +} + +static void +gst_two_lame_finalize (GObject * obj) +{ + gst_two_lame_release_memory (GST_TWO_LAME (obj)); + + G_OBJECT_CLASS (gst_two_lame_parent_class)->finalize (obj); +} + +static void +gst_two_lame_class_init (GstTwoLameClass * klass) +{ + GObjectClass *gobject_class; + GstAudioEncoderClass *gstbase_class; + + gobject_class = (GObjectClass *) klass; + gstbase_class = (GstAudioEncoderClass *) klass; + + gobject_class->set_property = gst_two_lame_set_property; + gobject_class->get_property = gst_two_lame_get_property; + gobject_class->finalize = gst_two_lame_finalize; + + gstbase_class->start = GST_DEBUG_FUNCPTR (gst_two_lame_start); + gstbase_class->stop = GST_DEBUG_FUNCPTR (gst_two_lame_stop); + gstbase_class->set_format = GST_DEBUG_FUNCPTR (gst_two_lame_set_format); + gstbase_class->handle_frame = GST_DEBUG_FUNCPTR (gst_two_lame_handle_frame); + gstbase_class->flush = GST_DEBUG_FUNCPTR (gst_two_lame_flush); + + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MODE, + g_param_spec_enum ("mode", "Mode", "Encoding mode", + GST_TYPE_TWO_LAME_MODE, gst_two_lame_default_settings.mode, + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_PSYMODEL, + g_param_spec_int ("psymodel", "Psychoacoustic Model", + "Psychoacoustic model used to encode the audio", + -1, 4, gst_two_lame_default_settings.psymodel, + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + + 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, 144, 160, 192, 224, 256, 320, 384)", + 8, 384, gst_two_lame_default_settings.bitrate, + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_PADDING, + g_param_spec_enum ("padding", "Padding", "Padding type", + GST_TYPE_TWO_LAME_PADDING, gst_two_lame_default_settings.padding, + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + + g_object_class_install_property (G_OBJECT_CLASS (klass), + ARG_ENERGY_LEVEL_EXTENSION, + g_param_spec_boolean ("energy-level-extension", "Energy Level Extension", + "Write peak PCM level to each frame", + gst_two_lame_default_settings.energy_level_extension, + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_EMPHASIS, + g_param_spec_enum ("emphasis", "Emphasis", + "Pre-emphasis to apply to the decoded audio", + GST_TYPE_TWO_LAME_EMPHASIS, gst_two_lame_default_settings.emphasis, + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ERROR_PROTECTION, + g_param_spec_boolean ("error-protection", "Error protection", + "Adds checksum to every frame", + gst_two_lame_default_settings.error_protection, + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_COPYRIGHT, + g_param_spec_boolean ("copyright", "Copyright", "Mark as copyright", + gst_two_lame_default_settings.copyright, + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ORIGINAL, + g_param_spec_boolean ("original", "Original", "Mark as original", + gst_two_lame_default_settings.original, + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_VBR, + g_param_spec_boolean ("vbr", "VBR", "Enable variable bitrate mode", + gst_two_lame_default_settings.vbr, + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_VBR_LEVEL, + g_param_spec_float ("vbr-level", "VBR Level", "VBR Level", + -10.0, 10.0, gst_two_lame_default_settings.vbr_level, + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ATH_LEVEL, + g_param_spec_float ("ath-level", "ATH Level", "ATH Level in dB", + -G_MAXFLOAT, G_MAXFLOAT, gst_two_lame_default_settings.ath_level, + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + + 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 (0=off, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, " + "112, 128, 144, 160, 192, 224, 256, 320, 384)", + 0, 384, gst_two_lame_default_settings.vbr_max_bitrate, + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_QUICK_MODE, + g_param_spec_boolean ("quick-mode", "Quick mode", + "Calculate Psymodel every frames", + gst_two_lame_default_settings.quick_mode, + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_QUICK_MODE_COUNT, + g_param_spec_int ("quick-mode-count", "Quick mode count", + "Calculate Psymodel every n frames", + 0, G_MAXINT, gst_two_lame_default_settings.quick_mode_count, + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + + gst_element_class_add_pad_template (GST_ELEMENT_CLASS (klass), + gst_static_pad_template_get (&gst_two_lame_src_template)); + gst_element_class_add_pad_template (GST_ELEMENT_CLASS (klass), + gst_static_pad_template_get (&gst_two_lame_sink_template)); + + gst_element_class_set_static_metadata (GST_ELEMENT_CLASS (klass), + "TwoLAME mp2 encoder", "Codec/Encoder/Audio", + "High-quality free MP2 encoder", + "Sebastian Dröge <sebastian.droege@collabora.co.uk>"); +} + +static gboolean +gst_two_lame_set_format (GstAudioEncoder * enc, GstAudioInfo * info) +{ + GstTwoLame *twolame; + gint out_samplerate; + gint version; + GstCaps *othercaps; + + twolame = GST_TWO_LAME (enc); + + /* parameters already parsed for us */ + twolame->samplerate = GST_AUDIO_INFO_RATE (info); + twolame->num_channels = GST_AUDIO_INFO_CHANNELS (info); + twolame->float_input = !GST_AUDIO_INFO_IS_INTEGER (info); + + /* but we might be asked to reconfigure, so reset */ + gst_two_lame_release_memory (twolame); + + GST_DEBUG_OBJECT (twolame, "setting up twolame"); + if (!gst_two_lame_setup (twolame)) + goto setup_failed; + + out_samplerate = twolame_get_out_samplerate (twolame->glopts); + if (out_samplerate == 0) + goto zero_output_rate; + + if (out_samplerate != twolame->samplerate) { + GST_WARNING_OBJECT (twolame, + "output samplerate %d is different from incoming samplerate %d", + out_samplerate, twolame->samplerate); + } + + version = twolame_get_version (twolame->glopts); + if (version == TWOLAME_MPEG2) + version = 2; + else + version = 1; + + othercaps = + gst_caps_new_simple ("audio/mpeg", + "mpegversion", G_TYPE_INT, 1, + "mpegaudioversion", G_TYPE_INT, version, + "layer", G_TYPE_INT, 2, + "channels", G_TYPE_INT, + twolame->mode == TWOLAME_MONO ? 1 : twolame->num_channels, "rate", + G_TYPE_INT, out_samplerate, NULL); + + /* and use these caps */ + gst_audio_encoder_set_output_format (GST_AUDIO_ENCODER (twolame), othercaps); + gst_caps_unref (othercaps); + + /* report needs to base class: + * hand one frame at a time, if we are pretty sure what a frame is */ + if (out_samplerate == twolame->samplerate) { + gst_audio_encoder_set_frame_samples_min (enc, 1152); + gst_audio_encoder_set_frame_samples_max (enc, 1152); + gst_audio_encoder_set_frame_max (enc, 1); + } + + return TRUE; + +zero_output_rate: + { + GST_ELEMENT_ERROR (twolame, LIBRARY, SETTINGS, (NULL), + ("TwoLAME decided on a zero sample rate")); + return FALSE; + } +setup_failed: + { + GST_ELEMENT_ERROR (twolame, LIBRARY, SETTINGS, + (_("Failed to configure TwoLAME encoder. Check your encoding parameters.")), (NULL)); + return FALSE; + } +} + +static void +gst_two_lame_init (GstTwoLame * twolame) +{ + GST_DEBUG_OBJECT (twolame, "starting initialization"); + + twolame->mode = gst_two_lame_default_settings.mode; + twolame->psymodel = gst_two_lame_default_settings.psymodel; + twolame->bitrate = gst_two_lame_default_settings.bitrate; + twolame->padding = gst_two_lame_default_settings.padding; + twolame->energy_level_extension = + gst_two_lame_default_settings.energy_level_extension; + twolame->emphasis = gst_two_lame_default_settings.emphasis; + twolame->error_protection = gst_two_lame_default_settings.error_protection; + twolame->copyright = gst_two_lame_default_settings.copyright; + twolame->original = gst_two_lame_default_settings.original; + twolame->vbr = gst_two_lame_default_settings.vbr; + twolame->vbr_level = gst_two_lame_default_settings.vbr_level; + twolame->ath_level = gst_two_lame_default_settings.ath_level; + twolame->vbr_max_bitrate = gst_two_lame_default_settings.vbr_max_bitrate; + twolame->quick_mode = gst_two_lame_default_settings.quick_mode; + twolame->quick_mode_count = gst_two_lame_default_settings.quick_mode_count; + + GST_DEBUG_OBJECT (twolame, "done initializing"); +} + +static gboolean +gst_two_lame_start (GstAudioEncoder * enc) +{ + GstTwoLame *twolame = GST_TWO_LAME (enc); + + GST_DEBUG_OBJECT (twolame, "start"); + return TRUE; +} + +static gboolean +gst_two_lame_stop (GstAudioEncoder * enc) +{ + GstTwoLame *twolame = GST_TWO_LAME (enc); + + GST_DEBUG_OBJECT (twolame, "stop"); + + gst_two_lame_release_memory (twolame); + return TRUE; +} + +/* <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) \ +G_STMT_START { \ + gint ___rate = rate; \ + gint maxrate = 320; \ + gint multiplier = 64; \ + if (rate <= 64) { \ + maxrate = 64; multiplier = 8; \ + if ((rate % 8) != 0) ___rate = GST_ROUND_UP_8 (rate); \ + } else if (rate <= 144) { \ + maxrate = 144; 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 <= 384) { \ + maxrate = 384; 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_two_lame_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec) +{ + GstTwoLame *twolame = GST_TWO_LAME (object); + + switch (prop_id) { + case ARG_MODE: + twolame->mode = g_value_get_enum (value); + break; + case ARG_PSYMODEL: + twolame->psymodel = g_value_get_int (value); + break; + case ARG_BITRATE: + twolame->bitrate = g_value_get_int (value); + break; + case ARG_PADDING: + twolame->padding = g_value_get_enum (value); + break; + case ARG_ENERGY_LEVEL_EXTENSION: + twolame->energy_level_extension = g_value_get_boolean (value); + break; + case ARG_EMPHASIS: + twolame->emphasis = g_value_get_enum (value); + break; + case ARG_ERROR_PROTECTION: + twolame->error_protection = g_value_get_boolean (value); + break; + case ARG_COPYRIGHT: + twolame->copyright = g_value_get_boolean (value); + break; + case ARG_ORIGINAL: + twolame->original = g_value_get_boolean (value); + break; + case ARG_VBR: + twolame->vbr = g_value_get_boolean (value); + break; + case ARG_VBR_LEVEL: + twolame->vbr_level = g_value_get_float (value); + break; + case ARG_ATH_LEVEL: + twolame->ath_level = g_value_get_float (value); + break; + case ARG_VBR_MAX_BITRATE: + twolame->vbr_max_bitrate = g_value_get_int (value); + break; + case ARG_QUICK_MODE: + twolame->quick_mode = g_value_get_boolean (value); + break; + case ARG_QUICK_MODE_COUNT: + twolame->quick_mode_count = g_value_get_int (value); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +gst_two_lame_get_property (GObject * object, guint prop_id, GValue * value, + GParamSpec * pspec) +{ + GstTwoLame *twolame = GST_TWO_LAME (object); + + switch (prop_id) { + case ARG_MODE: + g_value_set_enum (value, twolame->mode); + break; + case ARG_PSYMODEL: + g_value_set_int (value, twolame->psymodel); + break; + case ARG_BITRATE: + g_value_set_int (value, twolame->bitrate); + break; + case ARG_PADDING: + g_value_set_enum (value, twolame->padding); + break; + case ARG_ENERGY_LEVEL_EXTENSION: + g_value_set_boolean (value, twolame->energy_level_extension); + break; + case ARG_EMPHASIS: + g_value_set_enum (value, twolame->emphasis); + break; + case ARG_ERROR_PROTECTION: + g_value_set_boolean (value, twolame->error_protection); + break; + case ARG_COPYRIGHT: + g_value_set_boolean (value, twolame->copyright); + break; + case ARG_ORIGINAL: + g_value_set_boolean (value, twolame->original); + break; + case ARG_VBR: + g_value_set_boolean (value, twolame->vbr); + break; + case ARG_VBR_LEVEL: + g_value_set_float (value, twolame->vbr_level); + break; + case ARG_ATH_LEVEL: + g_value_set_float (value, twolame->ath_level); + break; + case ARG_VBR_MAX_BITRATE: + g_value_set_int (value, twolame->vbr_max_bitrate); + break; + case ARG_QUICK_MODE: + g_value_set_boolean (value, twolame->quick_mode); + break; + case ARG_QUICK_MODE_COUNT: + g_value_set_int (value, twolame->quick_mode_count); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static GstFlowReturn +gst_two_lame_flush_full (GstTwoLame * lame, gboolean push) +{ + GstBuffer *buf; + GstMapInfo map; + gint size; + GstFlowReturn result = GST_FLOW_OK; + + if (!lame->glopts) + return GST_FLOW_OK; + + buf = gst_buffer_new_and_alloc (16384); + gst_buffer_map (buf, &map, GST_MAP_WRITE); + size = twolame_encode_flush (lame->glopts, map.data, 16384); + gst_buffer_unmap (buf, &map); + + if (size > 0 && push) { + gst_buffer_set_size (buf, size); + GST_DEBUG_OBJECT (lame, "pushing final packet of %u bytes", size); + result = gst_audio_encoder_finish_frame (GST_AUDIO_ENCODER (lame), buf, -1); + } else { + GST_DEBUG_OBJECT (lame, "no final packet (size=%d, push=%d)", size, push); + gst_buffer_unref (buf); + result = GST_FLOW_OK; + } + return result; +} + +static void +gst_two_lame_flush (GstAudioEncoder * enc) +{ + gst_two_lame_flush_full (GST_TWO_LAME (enc), FALSE); +} + +static GstFlowReturn +gst_two_lame_handle_frame (GstAudioEncoder * enc, GstBuffer * buf) +{ + GstTwoLame *twolame; + gint mp3_buffer_size, mp3_size; + GstBuffer *mp3_buf; + GstFlowReturn result; + gint num_samples; + GstMapInfo map, mp3_map; + + twolame = GST_TWO_LAME (enc); + + /* squeeze remaining and push */ + if (G_UNLIKELY (buf == NULL)) + return gst_two_lame_flush_full (twolame, TRUE); + + gst_buffer_map (buf, &map, GST_MAP_READ); + + if (twolame->float_input) + num_samples = map.size / 4; + else + num_samples = map.size / 2; + + /* allocate space for output */ + mp3_buffer_size = 1.25 * num_samples + 16384; + mp3_buf = gst_buffer_new_and_alloc (mp3_buffer_size); + gst_buffer_map (mp3_buf, &mp3_map, GST_MAP_WRITE); + + if (twolame->num_channels == 1) { + if (twolame->float_input) + mp3_size = twolame_encode_buffer_float32 (twolame->glopts, + (float *) map.data, + (float *) map.data, num_samples, mp3_map.data, mp3_buffer_size); + else + mp3_size = twolame_encode_buffer (twolame->glopts, + (short int *) map.data, + (short int *) map.data, num_samples, mp3_map.data, mp3_buffer_size); + } else { + if (twolame->float_input) + mp3_size = twolame_encode_buffer_float32_interleaved (twolame->glopts, + (float *) map.data, + num_samples / twolame->num_channels, mp3_map.data, mp3_buffer_size); + else + mp3_size = twolame_encode_buffer_interleaved (twolame->glopts, + (short int *) map.data, + num_samples / twolame->num_channels, mp3_map.data, mp3_buffer_size); + } + + GST_LOG_OBJECT (twolame, "encoded %" G_GSIZE_FORMAT " bytes of audio " + "to %d bytes of mp3", map.size, mp3_size); + + gst_buffer_unmap (buf, &map); + gst_buffer_unmap (mp3_buf, &mp3_map); + + if (mp3_size > 0) { + gst_buffer_set_size (mp3_buf, mp3_size); + result = gst_audio_encoder_finish_frame (enc, mp3_buf, -1); + } else { + if (mp3_size < 0) { + /* eat error ? */ + g_warning ("error %d", mp3_size); + } + gst_buffer_unref (mp3_buf); + result = GST_FLOW_OK; + } + + return result; +} + +/* set up the encoder state */ +static gboolean +gst_two_lame_setup (GstTwoLame * twolame) +{ + +#define CHECK_ERROR(command) G_STMT_START {\ + if ((command) < 0) { \ + GST_ERROR_OBJECT (twolame, "setup failed: " G_STRINGIFY (command)); \ + return FALSE; \ + } \ +}G_STMT_END + + int retval; + GstCaps *allowed_caps; + + GST_DEBUG_OBJECT (twolame, "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 (twolame->setup) { + GST_WARNING_OBJECT (twolame, "already setup"); + twolame->setup = FALSE; + } + + twolame->glopts = twolame_init (); + + if (twolame->glopts == NULL) + return FALSE; + + /* copy the parameters over */ + twolame_set_in_samplerate (twolame->glopts, twolame->samplerate); + + /* let twolame choose default samplerate unless outgoing sample rate is fixed */ + allowed_caps = gst_pad_get_allowed_caps (GST_AUDIO_ENCODER_SRC_PAD (twolame)); + + 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 (twolame, + "Setting sample rate to %d as fixed in src caps", samplerate); + twolame_set_out_samplerate (twolame->glopts, samplerate); + } else { + GST_DEBUG_OBJECT (twolame, "Letting twolame choose sample rate"); + twolame_set_out_samplerate (twolame->glopts, 0); + } + gst_caps_unref (allowed_caps); + allowed_caps = NULL; + } else { + GST_DEBUG_OBJECT (twolame, + "No peer yet, letting twolame choose sample rate"); + twolame_set_out_samplerate (twolame->glopts, 0); + } + + /* force mono encoding if we only have one channel */ + if (twolame->num_channels == 1) + twolame->mode = 3; + + /* Fix bitrates and MPEG version */ + + CHECK_ERROR (twolame_set_num_channels (twolame->glopts, + twolame->num_channels)); + + CHECK_ERROR (twolame_set_mode (twolame->glopts, twolame->mode)); + CHECK_ERROR (twolame_set_psymodel (twolame->glopts, twolame->psymodel)); + CHECK_AND_FIXUP_BITRATE (twolame, "bitrate", twolame->bitrate); + CHECK_ERROR (twolame_set_bitrate (twolame->glopts, twolame->bitrate)); + CHECK_ERROR (twolame_set_padding (twolame->glopts, twolame->padding)); + CHECK_ERROR (twolame_set_energy_levels (twolame->glopts, + twolame->energy_level_extension)); + CHECK_ERROR (twolame_set_emphasis (twolame->glopts, twolame->emphasis)); + CHECK_ERROR (twolame_set_error_protection (twolame->glopts, + twolame->error_protection)); + CHECK_ERROR (twolame_set_copyright (twolame->glopts, twolame->copyright)); + CHECK_ERROR (twolame_set_original (twolame->glopts, twolame->original)); + CHECK_ERROR (twolame_set_VBR (twolame->glopts, twolame->vbr)); + CHECK_ERROR (twolame_set_VBR_level (twolame->glopts, twolame->vbr_level)); + CHECK_ERROR (twolame_set_ATH_level (twolame->glopts, twolame->ath_level)); + CHECK_AND_FIXUP_BITRATE (twolame, "vbr-max-bitrate", + twolame->vbr_max_bitrate); + CHECK_ERROR (twolame_set_VBR_max_bitrate_kbps (twolame->glopts, + twolame->vbr_max_bitrate)); + CHECK_ERROR (twolame_set_quick_mode (twolame->glopts, twolame->quick_mode)); + CHECK_ERROR (twolame_set_quick_count (twolame->glopts, + twolame->quick_mode_count)); + + /* initialize the twolame encoder */ + if ((retval = twolame_init_params (twolame->glopts)) >= 0) { + twolame->setup = TRUE; + /* FIXME: it would be nice to print out the mode here */ + GST_INFO ("twolame encoder setup (%d kbit/s, %d Hz, %d channels)", + twolame->bitrate, twolame->samplerate, twolame->num_channels); + } else { + GST_ERROR_OBJECT (twolame, "twolame_init_params returned %d", retval); + } + + GST_DEBUG_OBJECT (twolame, "done with setup"); + + return twolame->setup; +#undef CHECK_ERROR +} + +static gboolean +gst_two_lame_get_default_settings (void) +{ + twolame_options *glopts = NULL; + + glopts = twolame_init (); + if (glopts == NULL) { + GST_ERROR ("Couldn't initialize TwoLAME"); + return FALSE; + } + + twolame_set_num_channels (glopts, 2); + twolame_set_in_samplerate (glopts, 44100); + + if (twolame_init_params (glopts) != 0) { + GST_ERROR ("Couldn't set default parameters"); + return FALSE; + } + + gst_two_lame_default_settings.mode = TWOLAME_JOINT_STEREO; /* twolame_get_mode (glopts); */ + gst_two_lame_default_settings.psymodel = twolame_get_psymodel (glopts); + gst_two_lame_default_settings.bitrate = twolame_get_bitrate (glopts); + gst_two_lame_default_settings.padding = twolame_get_padding (glopts); + gst_two_lame_default_settings.energy_level_extension = + twolame_get_energy_levels (glopts); + gst_two_lame_default_settings.emphasis = twolame_get_emphasis (glopts); + gst_two_lame_default_settings.error_protection = + twolame_get_error_protection (glopts); + gst_two_lame_default_settings.copyright = twolame_get_copyright (glopts); + gst_two_lame_default_settings.original = twolame_get_original (glopts); + gst_two_lame_default_settings.vbr = twolame_get_VBR (glopts); + gst_two_lame_default_settings.vbr_level = twolame_get_VBR_level (glopts); + gst_two_lame_default_settings.ath_level = twolame_get_ATH_level (glopts); + gst_two_lame_default_settings.vbr_max_bitrate = + twolame_get_VBR_max_bitrate_kbps (glopts); + gst_two_lame_default_settings.quick_mode = twolame_get_quick_mode (glopts); + gst_two_lame_default_settings.quick_mode_count = + twolame_get_quick_count (glopts); + + twolame_close (&glopts); + + return TRUE; +} + +static gboolean +plugin_init (GstPlugin * plugin) +{ + GST_DEBUG_CATEGORY_INIT (debug, "twolame", 0, "twolame mp2 encoder"); + + if (!gst_two_lame_get_default_settings ()) + return FALSE; + +#ifdef ENABLE_NLS + GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE, + LOCALEDIR); + bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR); + bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8"); +#endif /* ENABLE_NLS */ + + if (!gst_element_register (plugin, "twolamemp2enc", GST_RANK_PRIMARY, + GST_TYPE_TWO_LAME)) + return FALSE; + + return TRUE; +} + +GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, + GST_VERSION_MINOR, + twolame, + "Encode MP2s with TwoLAME", + plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN); diff --git a/ext/twolame/gsttwolamemp2enc.h b/ext/twolame/gsttwolamemp2enc.h new file mode 100644 index 0000000..72a6bea --- /dev/null +++ b/ext/twolame/gsttwolamemp2enc.h @@ -0,0 +1,88 @@ +/* GStreamer + * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> + * Copyright (C) <2008> Sebastian Dröge <sebastian.droege@collabora.co.uk> + * + * 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., 51 Franklin St, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + + +#ifndef __GST_TWO_LAME_H__ +#define __GST_TWO_LAME_H__ + + +#include <gst/gst.h> +#include <gst/audio/gstaudioencoder.h> + +G_BEGIN_DECLS + +#include <twolame.h> + +#define GST_TYPE_TWO_LAME \ + (gst_two_lame_get_type()) +#define GST_TWO_LAME(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_TWO_LAME,GstTwoLame)) +#define GST_TWO_LAME_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_TWO_LAME,GstTwoLameClass)) +#define GST_IS_TWO_LAME(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_TWO_LAME)) +#define GST_IS_TWO_LAME_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_TWO_LAME)) + +typedef struct _GstTwoLame GstTwoLame; +typedef struct _GstTwoLameClass GstTwoLameClass; + +/** + * GstTwoLame: + * + * Opaque data structure. + */ +struct _GstTwoLame { + GstAudioEncoder element; + + gint samplerate; + gint num_channels; + gboolean float_input; + gboolean setup; + + gint mode; + gint psymodel; + gint bitrate; + gint padding; + gboolean energy_level_extension; + gint emphasis; + gboolean error_protection; + gboolean copyright; + gboolean original; + gboolean vbr; + gfloat vbr_level; + gfloat ath_level; + gint vbr_max_bitrate; + gboolean quick_mode; + gint quick_mode_count; + + twolame_options *glopts; +}; + +struct _GstTwoLameClass { + GstAudioEncoderClass parent_class; +}; + +GType gst_two_lame_get_type(void); + +G_END_DECLS + + +#endif /* __GST_TWO_LAME_H__ */ |