mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-19 18:40:31 +00:00
lame: Add lamemp3enc element with much simplified interface
This deprecates the lame element and fixes bug #494528.
This commit is contained in:
Sebastian Dröge
parent
804f65e6db
commit
389a6ea0ec
5 changed files with 1006 additions and 18 deletions
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@ -1,9 +1,9 @@
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plugin_LTLIBRARIES = libgstlame.la
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libgstlame_la_SOURCES = gstlame.c
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libgstlame_la_SOURCES = gstlame.c gstlamemp3enc.c plugin.c
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libgstlame_la_CFLAGS = $(GST_CFLAGS) $(LAME_CFLAGS)
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libgstlame_la_LIBADD = $(LAME_LIBS) $(GST_LIBS)
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libgstlame_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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libgstlame_la_LIBTOOLFLAGS = --tag=disable-static
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noinst_HEADERS = gstlame.h
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noinst_HEADERS = gstlame.h gstlamemp3enc.h
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@ -21,7 +21,7 @@
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/**
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* SECTION:element-lame
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* @see_also: mad, vorbisenc
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* @see_also: lamemp3enc, mad, vorbisenc
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*
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* This element encodes raw integer audio into an MPEG-1 layer 3 (MP3) stream.
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* Note that <ulink url="http://en.wikipedia.org/wiki/MP3">MP3</ulink> is not
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@ -30,6 +30,12 @@
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* for a royalty free (and often higher quality) alternative.
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*
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* <refsect2>
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* <title>Note</title>
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* This element is deprecated, use the lamemp3enc element instead
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* which provides a much simpler interface and results in better MP3 files.
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* </refsect2>
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*
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* <refsect2>
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* <title>Output sample rate</title>
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* If no fixed output sample rate is negotiated on the element's src pad,
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* the element will choose an optimal sample rate to resample to internally.
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@ -1352,29 +1358,16 @@ gst_lame_get_default_settings (void)
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return TRUE;
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}
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static gboolean
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plugin_init (GstPlugin * plugin)
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gboolean
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gst_lame_register (GstPlugin * plugin)
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{
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GST_DEBUG_CATEGORY_INIT (debug, "lame", 0, "lame mp3 encoder");
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if (!gst_lame_get_default_settings ())
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return FALSE;
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#ifdef ENABLE_NLS
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GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE,
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LOCALEDIR);
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bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
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bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
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#endif /* ENABLE_NLS */
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if (!gst_element_register (plugin, "lame", GST_RANK_NONE, GST_TYPE_LAME))
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return FALSE;
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return TRUE;
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}
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GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
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GST_VERSION_MINOR,
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"lame",
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"Encode MP3s with LAME",
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plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);
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856
ext/lame/gstlamemp3enc.c
Normal file
856
ext/lame/gstlamemp3enc.c
Normal file
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@ -0,0 +1,856 @@
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/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2004> Wim Taymans <wim@fluendo.com>
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* Copyright (C) <2005> Thomas Vander Stichele <thomas at apestaart dot org>
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* Copyright (C) <2009> Sebastian Dröge <sebastian.droege@collabora.co.uk>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/**
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* SECTION:element-lamemp3enc
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* @see_also: lame, mad, vorbisenc
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*
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* This element encodes raw integer audio into an MPEG-1 layer 3 (MP3) stream.
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* Note that <ulink url="http://en.wikipedia.org/wiki/MP3">MP3</ulink> is not
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* a free format, there are licensing and patent issues to take into
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* consideration. See <ulink url="http://www.vorbis.com/">Ogg/Vorbis</ulink>
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* for a royalty free (and often higher quality) alternative.
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*
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* <refsect2>
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* <title>Output sample rate</title>
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* If no fixed output sample rate is negotiated on the element's src pad,
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* the element will choose an optimal sample rate to resample to internally.
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* For example, a 16-bit 44.1 KHz mono audio stream encoded at 48 kbit will
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* get resampled to 32 KHz. Use filter caps on the src pad to force a
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* particular sample rate.
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* </refsect2>
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* <refsect2>
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* <title>Example pipelines</title>
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* |[
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* gst-launch -v audiotestsrc wave=sine num-buffers=100 ! audioconvert ! lamemp3enc ! filesink location=sine.mp3
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* ]| Encode a test sine signal to MP3.
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* |[
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* gst-launch -v alsasrc ! audioconvert ! lamemp3enc bitrate=192 ! filesink location=alsasrc.mp3
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* ]| Record from a sound card using ALSA and encode to MP3
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* |[
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* gst-launch -v filesrc location=music.wav ! decodebin ! audioconvert ! audioresample ! lamemp3enc bitrate=192 ! id3v2mux ! filesink location=music.mp3
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* ]| Transcode from a .wav file to MP3 (the id3v2mux element is optional)
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* |[
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* gst-launch -v cdda://5 ! audioconvert ! lamemp3enc bitrate=192 ! filesink location=track5.mp3
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* ]| Encode Audio CD track 5 to MP3
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* |[
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* gst-launch -v audiotestsrc num-buffers=10 ! audio/x-raw-int,rate=44100,channels=1 ! lamemp3enc bitrate=48 ! filesink location=test.mp3
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* ]| Encode to a fixed sample rate
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* </refsect2>
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include "gstlamemp3enc.h"
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#include <gst/gst-i18n-plugin.h>
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GST_DEBUG_CATEGORY_STATIC (debug);
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#define GST_CAT_DEFAULT debug
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/* elementfactory information */
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/* LAMEMP3ENC can do MPEG-1, MPEG-2, and MPEG-2.5, so it has 9 possible
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* sample rates it supports */
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static GstStaticPadTemplate gst_lamemp3enc_sink_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/x-raw-int, "
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"endianness = (int) " G_STRINGIFY (G_BYTE_ORDER) ", "
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"signed = (boolean) true, "
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"width = (int) 16, "
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"depth = (int) 16, "
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"rate = (int) { 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000 }, "
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"channels = (int) [ 1, 2 ]")
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);
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static GstStaticPadTemplate gst_lamemp3enc_src_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/mpeg, "
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"mpegversion = (int) 1, "
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"layer = (int) 3, "
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"rate = (int) { 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000 }, "
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"channels = (int) [ 1, 2 ]")
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);
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/********** Define useful types for non-programmatic interfaces **********/
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enum
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{
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LAMEMP3ENC_TARGET_QUALITY = 0,
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LAMEMP3ENC_TARGET_BITRATE
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};
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#define GST_TYPE_LAMEMP3ENC_TARGET (gst_lamemp3enc_target_get_type())
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static GType
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gst_lamemp3enc_target_get_type (void)
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{
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static GType lame_target_type = 0;
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static GEnumValue lame_targets[] = {
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{LAMEMP3ENC_TARGET_QUALITY, "Quality", "quality"},
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{LAMEMP3ENC_TARGET_BITRATE, "Bitrate", "bitrate"},
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{0, NULL, NULL}
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};
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if (!lame_target_type) {
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lame_target_type =
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g_enum_register_static ("GstLameMP3EncTarget", lame_targets);
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}
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return lame_target_type;
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}
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enum
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{
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LAMEMP3ENC_ENCODING_ENGINE_QUALITY_FAST = 0,
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LAMEMP3ENC_ENCODING_ENGINE_QUALITY_STANDARD,
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LAMEMP3ENC_ENCODING_ENGINE_QUALITY_HIGH
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};
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#define GST_TYPE_LAMEMP3ENC_ENCODING_ENGINE_QUALITY (gst_lamemp3enc_encoding_engine_quality_get_type())
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static GType
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gst_lamemp3enc_encoding_engine_quality_get_type (void)
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{
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static GType lame_encoding_engine_quality_type = 0;
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static GEnumValue lame_encoding_engine_quality[] = {
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{0, "Fast", "fast"},
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{1, "Standard", "standard"},
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{2, "High", "high"},
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{0, NULL, NULL}
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};
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if (!lame_encoding_engine_quality_type) {
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lame_encoding_engine_quality_type =
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g_enum_register_static ("GstLameMP3EncEncodingEngineQuality",
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lame_encoding_engine_quality);
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}
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return lame_encoding_engine_quality_type;
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}
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/********** Standard stuff for signals and arguments **********/
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enum
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{
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ARG_0,
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ARG_TARGET,
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ARG_BITRATE,
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ARG_CBR,
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ARG_VBR_QUALITY,
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ARG_FAST_VBR,
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ARG_ENCODING_ENGINE_QUALITY,
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ARG_MONO
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};
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#define DEFAULT_TARGET LAMEMP3ENC_TARGET_QUALITY
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#define DEFAULT_BITRATE 128
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#define DEFAULT_CBR FALSE
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#define DEFAULT_VBR_QUALITY 4
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#define DEFAULT_FAST_VBR FALSE
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#define DEFAULT_ENCODING_ENGINE_QUALITY LAMEMP3ENC_ENCODING_ENGINE_QUALITY_STANDARD
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#define DEFAULT_MONO FALSE
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static void gst_lamemp3enc_base_init (gpointer g_class);
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static void gst_lamemp3enc_class_init (GstLameMP3EncClass * klass);
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static void gst_lamemp3enc_init (GstLameMP3Enc * gst_lame);
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static void gst_lamemp3enc_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_lamemp3enc_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static gboolean gst_lamemp3enc_sink_event (GstPad * pad, GstEvent * event);
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static GstFlowReturn gst_lamemp3enc_chain (GstPad * pad, GstBuffer * buf);
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static gboolean gst_lamemp3enc_setup (GstLameMP3Enc * lame);
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static GstStateChangeReturn gst_lamemp3enc_change_state (GstElement * element,
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GstStateChange transition);
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static GstElementClass *parent_class = NULL;
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GType
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gst_lamemp3enc_get_type (void)
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{
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static GType gst_lamemp3enc_type = 0;
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if (!gst_lamemp3enc_type) {
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static const GTypeInfo gst_lamemp3enc_info = {
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sizeof (GstLameMP3EncClass),
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gst_lamemp3enc_base_init,
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NULL,
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(GClassInitFunc) gst_lamemp3enc_class_init,
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NULL,
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NULL,
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sizeof (GstLameMP3Enc),
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0,
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(GInstanceInitFunc) gst_lamemp3enc_init,
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};
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gst_lamemp3enc_type =
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g_type_register_static (GST_TYPE_ELEMENT, "GstLameMP3Enc",
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&gst_lamemp3enc_info, 0);
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}
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return gst_lamemp3enc_type;
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}
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static void
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gst_lamemp3enc_release_memory (GstLameMP3Enc * lame)
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{
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if (lame->lgf) {
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lame_close (lame->lgf);
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lame->lgf = NULL;
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}
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}
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static void
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gst_lamemp3enc_finalize (GObject * obj)
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{
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gst_lamemp3enc_release_memory (GST_LAMEMP3ENC (obj));
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G_OBJECT_CLASS (parent_class)->finalize (obj);
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}
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static void
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gst_lamemp3enc_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_lamemp3enc_src_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_lamemp3enc_sink_template));
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gst_element_class_set_details_simple (element_class, "L.A.M.E. mp3 encoder",
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"Codec/Encoder/Audio",
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"High-quality free MP3 encoder",
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"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
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}
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static void
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gst_lamemp3enc_class_init (GstLameMP3EncClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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parent_class = g_type_class_peek_parent (klass);
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gobject_class->set_property = gst_lamemp3enc_set_property;
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gobject_class->get_property = gst_lamemp3enc_get_property;
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gobject_class->finalize = gst_lamemp3enc_finalize;
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TARGET,
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g_param_spec_enum ("target", "Target",
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"Optimize for quality or bitrate", GST_TYPE_LAMEMP3ENC_TARGET,
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DEFAULT_TARGET, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BITRATE,
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g_param_spec_int ("bitrate", "Bitrate (kb/s)",
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"Bitrate in kbit/sec (8, 16, 24, 32, 40, 48, 56, 64, 80, 96, "
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"112, 128, 160, 192, 224, 256 or 320)",
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8, 320, DEFAULT_BITRATE, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CBR,
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g_param_spec_boolean ("cbr", "CBR", "Enforce constant bitrate encoding",
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DEFAULT_CBR, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_VBR_QUALITY,
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g_param_spec_float ("vbr-quality", "VBR Quality",
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"VBR Quality from 0 to 10, 0 being the best", 0.0, 9.999,
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DEFAULT_VBR_QUALITY, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FAST_VBR,
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g_param_spec_boolean ("fast-vbr", "Fast VBR", "Use fast VBR encoding",
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DEFAULT_FAST_VBR, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass),
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ARG_ENCODING_ENGINE_QUALITY, g_param_spec_enum ("encoding-engine-quality",
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"Encoding Engine Quality", "Quality/speed of the encoding engine",
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GST_TYPE_LAMEMP3ENC_ENCODING_ENGINE_QUALITY,
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DEFAULT_ENCODING_ENGINE_QUALITY, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MONO,
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g_param_spec_boolean ("mono", "Mono", "Enforce mono encoding",
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DEFAULT_MONO, G_PARAM_READWRITE));
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gstelement_class->change_state =
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GST_DEBUG_FUNCPTR (gst_lamemp3enc_change_state);
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}
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static gboolean
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gst_lamemp3enc_src_setcaps (GstPad * pad, GstCaps * caps)
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{
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GST_DEBUG_OBJECT (pad, "caps: %" GST_PTR_FORMAT, caps);
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return TRUE;
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}
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static gboolean
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gst_lamemp3enc_sink_setcaps (GstPad * pad, GstCaps * caps)
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{
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GstLameMP3Enc *lame;
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gint out_samplerate;
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gint version;
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GstStructure *structure;
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GstCaps *othercaps;
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lame = GST_LAMEMP3ENC (GST_PAD_PARENT (pad));
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structure = gst_caps_get_structure (caps, 0);
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if (!gst_structure_get_int (structure, "rate", &lame->samplerate))
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goto no_rate;
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if (!gst_structure_get_int (structure, "channels", &lame->num_channels))
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goto no_channels;
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GST_DEBUG_OBJECT (lame, "setting up lame");
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if (!gst_lamemp3enc_setup (lame))
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goto setup_failed;
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out_samplerate = lame_get_out_samplerate (lame->lgf);
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if (out_samplerate == 0)
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goto zero_output_rate;
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if (out_samplerate != lame->samplerate) {
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GST_WARNING_OBJECT (lame,
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"output samplerate %d is different from incoming samplerate %d",
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out_samplerate, lame->samplerate);
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}
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version = lame_get_version (lame->lgf);
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if (version == 0)
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version = 2;
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else if (version == 1)
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version = 1;
|
||||
else if (version == 2)
|
||||
version = 3;
|
||||
|
||||
othercaps =
|
||||
gst_caps_new_simple ("audio/mpeg",
|
||||
"mpegversion", G_TYPE_INT, 1,
|
||||
"mpegaudioversion", G_TYPE_INT, version,
|
||||
"layer", G_TYPE_INT, 3,
|
||||
"channels", G_TYPE_INT, lame->mono ? 1 : lame->num_channels,
|
||||
"rate", G_TYPE_INT, out_samplerate, NULL);
|
||||
|
||||
/* and use these caps */
|
||||
gst_pad_set_caps (lame->srcpad, othercaps);
|
||||
gst_caps_unref (othercaps);
|
||||
|
||||
return TRUE;
|
||||
|
||||
no_rate:
|
||||
{
|
||||
GST_ERROR_OBJECT (lame, "input caps have no sample rate field");
|
||||
return FALSE;
|
||||
}
|
||||
no_channels:
|
||||
{
|
||||
GST_ERROR_OBJECT (lame, "input caps have no channels field");
|
||||
return FALSE;
|
||||
}
|
||||
zero_output_rate:
|
||||
{
|
||||
GST_ELEMENT_ERROR (lame, LIBRARY, SETTINGS, (NULL),
|
||||
("LAMEMP3ENC decided on a zero sample rate"));
|
||||
return FALSE;
|
||||
}
|
||||
setup_failed:
|
||||
{
|
||||
GST_ELEMENT_ERROR (lame, LIBRARY, SETTINGS,
|
||||
(_("Failed to configure LAMEMP3ENC encoder. Check your encoding parameters.")), (NULL));
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_lamemp3enc_init (GstLameMP3Enc * lame)
|
||||
{
|
||||
GST_DEBUG_OBJECT (lame, "starting initialization");
|
||||
|
||||
lame->sinkpad =
|
||||
gst_pad_new_from_static_template (&gst_lamemp3enc_sink_template, "sink");
|
||||
gst_pad_set_event_function (lame->sinkpad,
|
||||
GST_DEBUG_FUNCPTR (gst_lamemp3enc_sink_event));
|
||||
gst_pad_set_chain_function (lame->sinkpad,
|
||||
GST_DEBUG_FUNCPTR (gst_lamemp3enc_chain));
|
||||
gst_pad_set_setcaps_function (lame->sinkpad,
|
||||
GST_DEBUG_FUNCPTR (gst_lamemp3enc_sink_setcaps));
|
||||
gst_element_add_pad (GST_ELEMENT (lame), lame->sinkpad);
|
||||
|
||||
lame->srcpad =
|
||||
gst_pad_new_from_static_template (&gst_lamemp3enc_src_template, "src");
|
||||
gst_pad_set_setcaps_function (lame->srcpad,
|
||||
GST_DEBUG_FUNCPTR (gst_lamemp3enc_src_setcaps));
|
||||
gst_element_add_pad (GST_ELEMENT (lame), lame->srcpad);
|
||||
|
||||
lame->samplerate = 44100;
|
||||
lame->num_channels = 2;
|
||||
lame->setup = FALSE;
|
||||
|
||||
/* Set default settings */
|
||||
lame->target = DEFAULT_TARGET;
|
||||
lame->bitrate = DEFAULT_BITRATE;
|
||||
lame->cbr = DEFAULT_CBR;
|
||||
lame->vbr_quality = DEFAULT_VBR_QUALITY;
|
||||
lame->fast_vbr = DEFAULT_FAST_VBR;
|
||||
lame->encoding_engine_quality = DEFAULT_ENCODING_ENGINE_QUALITY;
|
||||
lame->mono = DEFAULT_MONO;
|
||||
|
||||
GST_DEBUG_OBJECT (lame, "done initializing");
|
||||
}
|
||||
|
||||
/* <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 == 0) { \
|
||||
___rate = rate; \
|
||||
} else if (rate <= 64) { \
|
||||
maxrate = 64; multiplier = 8; \
|
||||
if ((rate % 8) != 0) ___rate = GST_ROUND_UP_8 (rate); \
|
||||
} else if (rate <= 128) { \
|
||||
maxrate = 128; multiplier = 16; \
|
||||
if ((rate % 16) != 0) ___rate = GST_ROUND_UP_16 (rate); \
|
||||
} else if (rate <= 256) { \
|
||||
maxrate = 256; multiplier = 32; \
|
||||
if ((rate % 32) != 0) ___rate = GST_ROUND_UP_32 (rate); \
|
||||
} else if (rate <= 320) { \
|
||||
maxrate = 320; multiplier = 64; \
|
||||
if ((rate % 64) != 0) ___rate = GST_ROUND_UP_64 (rate); \
|
||||
} \
|
||||
if (___rate != rate) { \
|
||||
GST_ELEMENT_WARNING (obj, LIBRARY, SETTINGS, \
|
||||
(_("The requested bitrate %d kbit/s for property '%s' " \
|
||||
"is not allowed. " \
|
||||
"The bitrate was changed to %d kbit/s."), rate, \
|
||||
param, ___rate), \
|
||||
("A bitrate below %d should be a multiple of %d.", \
|
||||
maxrate, multiplier)); \
|
||||
rate = ___rate; \
|
||||
} \
|
||||
} G_STMT_END
|
||||
|
||||
static void
|
||||
gst_lamemp3enc_set_property (GObject * object, guint prop_id,
|
||||
const GValue * value, GParamSpec * pspec)
|
||||
{
|
||||
GstLameMP3Enc *lame;
|
||||
|
||||
lame = GST_LAMEMP3ENC (object);
|
||||
|
||||
switch (prop_id) {
|
||||
case ARG_TARGET:
|
||||
lame->target = g_value_get_enum (value);
|
||||
break;
|
||||
case ARG_BITRATE:
|
||||
lame->bitrate = g_value_get_int (value);
|
||||
break;
|
||||
case ARG_CBR:
|
||||
lame->cbr = g_value_get_boolean (value);
|
||||
break;
|
||||
case ARG_VBR_QUALITY:
|
||||
lame->vbr_quality = g_value_get_float (value);
|
||||
break;
|
||||
case ARG_FAST_VBR:
|
||||
lame->fast_vbr = g_value_get_boolean (value);
|
||||
break;
|
||||
case ARG_ENCODING_ENGINE_QUALITY:
|
||||
lame->encoding_engine_quality = g_value_get_enum (value);
|
||||
break;
|
||||
case ARG_MONO:
|
||||
lame->mono = g_value_get_boolean (value);
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_lamemp3enc_get_property (GObject * object, guint prop_id, GValue * value,
|
||||
GParamSpec * pspec)
|
||||
{
|
||||
GstLameMP3Enc *lame;
|
||||
|
||||
lame = GST_LAMEMP3ENC (object);
|
||||
|
||||
switch (prop_id) {
|
||||
case ARG_TARGET:
|
||||
g_value_set_enum (value, lame->target);
|
||||
break;
|
||||
case ARG_BITRATE:
|
||||
g_value_set_int (value, lame->bitrate);
|
||||
break;
|
||||
case ARG_CBR:
|
||||
g_value_set_boolean (value, lame->cbr);
|
||||
break;
|
||||
case ARG_VBR_QUALITY:
|
||||
g_value_set_float (value, lame->vbr_quality);
|
||||
break;
|
||||
case ARG_FAST_VBR:
|
||||
g_value_set_boolean (value, lame->fast_vbr);
|
||||
break;
|
||||
case ARG_ENCODING_ENGINE_QUALITY:
|
||||
g_value_set_enum (value, lame->encoding_engine_quality);
|
||||
break;
|
||||
case ARG_MONO:
|
||||
g_value_set_boolean (value, lame->mono);
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_lamemp3enc_sink_event (GstPad * pad, GstEvent * event)
|
||||
{
|
||||
gboolean ret;
|
||||
GstLameMP3Enc *lame;
|
||||
|
||||
lame = GST_LAMEMP3ENC (gst_pad_get_parent (pad));
|
||||
|
||||
switch (GST_EVENT_TYPE (event)) {
|
||||
case GST_EVENT_EOS:{
|
||||
GST_DEBUG_OBJECT (lame, "handling EOS event");
|
||||
|
||||
if (lame->lgf != NULL) {
|
||||
GstBuffer *buf;
|
||||
gint size;
|
||||
|
||||
buf = gst_buffer_new_and_alloc (7200);
|
||||
size = lame_encode_flush (lame->lgf, GST_BUFFER_DATA (buf), 7200);
|
||||
|
||||
if (size > 0 && lame->last_flow == GST_FLOW_OK) {
|
||||
gint64 duration;
|
||||
|
||||
duration = gst_util_uint64_scale (size, 8 * GST_SECOND,
|
||||
1000 * lame->bitrate);
|
||||
|
||||
if (lame->last_ts == GST_CLOCK_TIME_NONE) {
|
||||
lame->last_ts = lame->eos_ts;
|
||||
lame->last_duration = duration;
|
||||
} else {
|
||||
lame->last_duration += duration;
|
||||
}
|
||||
|
||||
GST_BUFFER_TIMESTAMP (buf) = lame->last_ts;
|
||||
GST_BUFFER_DURATION (buf) = lame->last_duration;
|
||||
lame->last_ts = GST_CLOCK_TIME_NONE;
|
||||
GST_BUFFER_SIZE (buf) = size;
|
||||
GST_DEBUG_OBJECT (lame, "pushing final packet of %u bytes", size);
|
||||
gst_buffer_set_caps (buf, GST_PAD_CAPS (lame->srcpad));
|
||||
gst_pad_push (lame->srcpad, buf);
|
||||
} else {
|
||||
GST_DEBUG_OBJECT (lame, "no final packet (size=%d, last_flow=%s)",
|
||||
size, gst_flow_get_name (lame->last_flow));
|
||||
gst_buffer_unref (buf);
|
||||
}
|
||||
}
|
||||
|
||||
ret = gst_pad_event_default (pad, event);
|
||||
break;
|
||||
}
|
||||
case GST_EVENT_FLUSH_START:
|
||||
GST_DEBUG_OBJECT (lame, "handling FLUSH start event");
|
||||
/* forward event */
|
||||
ret = gst_pad_push_event (lame->srcpad, event);
|
||||
break;
|
||||
case GST_EVENT_FLUSH_STOP:
|
||||
{
|
||||
guchar *mp3_data = NULL;
|
||||
gint mp3_buffer_size;
|
||||
|
||||
GST_DEBUG_OBJECT (lame, "handling FLUSH stop event");
|
||||
|
||||
/* clear buffers */
|
||||
mp3_buffer_size = 7200;
|
||||
mp3_data = g_malloc (mp3_buffer_size);
|
||||
lame_encode_flush (lame->lgf, mp3_data, mp3_buffer_size);
|
||||
|
||||
ret = gst_pad_push_event (lame->srcpad, event);
|
||||
break;
|
||||
}
|
||||
case GST_EVENT_TAG:
|
||||
GST_DEBUG_OBJECT (lame, "ignoring TAG event, passing it on");
|
||||
ret = gst_pad_push_event (lame->srcpad, event);
|
||||
break;
|
||||
default:
|
||||
ret = gst_pad_event_default (pad, event);
|
||||
break;
|
||||
}
|
||||
gst_object_unref (lame);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_lamemp3enc_chain (GstPad * pad, GstBuffer * buf)
|
||||
{
|
||||
GstLameMP3Enc *lame;
|
||||
guchar *mp3_data;
|
||||
gint mp3_buffer_size, mp3_size;
|
||||
gint64 duration;
|
||||
GstFlowReturn result;
|
||||
gint num_samples;
|
||||
guint8 *data;
|
||||
guint size;
|
||||
|
||||
lame = GST_LAMEMP3ENC (GST_PAD_PARENT (pad));
|
||||
|
||||
GST_LOG_OBJECT (lame, "entered chain");
|
||||
|
||||
if (!lame->setup)
|
||||
goto not_setup;
|
||||
|
||||
data = GST_BUFFER_DATA (buf);
|
||||
size = GST_BUFFER_SIZE (buf);
|
||||
|
||||
num_samples = size / 2;
|
||||
|
||||
/* allocate space for output */
|
||||
mp3_buffer_size = 1.25 * num_samples + 7200;
|
||||
mp3_data = g_malloc (mp3_buffer_size);
|
||||
|
||||
/* lame seems to be too stupid to get mono interleaved going */
|
||||
if (lame->num_channels == 1) {
|
||||
mp3_size = lame_encode_buffer (lame->lgf,
|
||||
(short int *) data,
|
||||
(short int *) data, num_samples, mp3_data, mp3_buffer_size);
|
||||
} else {
|
||||
mp3_size = lame_encode_buffer_interleaved (lame->lgf,
|
||||
(short int *) data,
|
||||
num_samples / lame->num_channels, mp3_data, mp3_buffer_size);
|
||||
}
|
||||
|
||||
GST_LOG_OBJECT (lame, "encoded %d bytes of audio to %d bytes of mp3",
|
||||
size, mp3_size);
|
||||
|
||||
duration = gst_util_uint64_scale_int (size, GST_SECOND,
|
||||
2 * lame->samplerate * lame->num_channels);
|
||||
|
||||
if (GST_BUFFER_DURATION (buf) != GST_CLOCK_TIME_NONE &&
|
||||
GST_BUFFER_DURATION (buf) != duration) {
|
||||
GST_DEBUG_OBJECT (lame, "incoming buffer had incorrect duration %"
|
||||
GST_TIME_FORMAT ", outgoing buffer will have correct duration %"
|
||||
GST_TIME_FORMAT,
|
||||
GST_TIME_ARGS (GST_BUFFER_DURATION (buf)), GST_TIME_ARGS (duration));
|
||||
}
|
||||
|
||||
if (lame->last_ts == GST_CLOCK_TIME_NONE) {
|
||||
lame->last_ts = GST_BUFFER_TIMESTAMP (buf);
|
||||
lame->last_offs = GST_BUFFER_OFFSET (buf);
|
||||
lame->last_duration = duration;
|
||||
} else {
|
||||
lame->last_duration += duration;
|
||||
}
|
||||
|
||||
gst_buffer_unref (buf);
|
||||
|
||||
if (mp3_size < 0) {
|
||||
g_warning ("error %d", mp3_size);
|
||||
}
|
||||
|
||||
if (mp3_size > 0) {
|
||||
GstBuffer *outbuf;
|
||||
|
||||
outbuf = gst_buffer_new ();
|
||||
GST_BUFFER_DATA (outbuf) = mp3_data;
|
||||
GST_BUFFER_MALLOCDATA (outbuf) = mp3_data;
|
||||
GST_BUFFER_SIZE (outbuf) = mp3_size;
|
||||
GST_BUFFER_TIMESTAMP (outbuf) = lame->last_ts;
|
||||
GST_BUFFER_OFFSET (outbuf) = lame->last_offs;
|
||||
GST_BUFFER_DURATION (outbuf) = lame->last_duration;
|
||||
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (lame->srcpad));
|
||||
|
||||
result = gst_pad_push (lame->srcpad, outbuf);
|
||||
lame->last_flow = result;
|
||||
if (result != GST_FLOW_OK) {
|
||||
GST_DEBUG_OBJECT (lame, "flow return: %s", gst_flow_get_name (result));
|
||||
}
|
||||
|
||||
if (GST_CLOCK_TIME_IS_VALID (lame->last_ts))
|
||||
lame->eos_ts = lame->last_ts + lame->last_duration;
|
||||
else
|
||||
lame->eos_ts = GST_CLOCK_TIME_NONE;
|
||||
lame->last_ts = GST_CLOCK_TIME_NONE;
|
||||
} else {
|
||||
g_free (mp3_data);
|
||||
result = GST_FLOW_OK;
|
||||
}
|
||||
|
||||
return result;
|
||||
|
||||
/* ERRORS */
|
||||
not_setup:
|
||||
{
|
||||
gst_buffer_unref (buf);
|
||||
GST_ELEMENT_ERROR (lame, CORE, NEGOTIATION, (NULL),
|
||||
("encoder not initialized (input is not audio?)"));
|
||||
return GST_FLOW_ERROR;
|
||||
}
|
||||
}
|
||||
|
||||
/* set up the encoder state */
|
||||
static gboolean
|
||||
gst_lamemp3enc_setup (GstLameMP3Enc * lame)
|
||||
{
|
||||
|
||||
#define CHECK_ERROR(command) G_STMT_START {\
|
||||
if ((command) < 0) { \
|
||||
GST_ERROR_OBJECT (lame, "setup failed: " G_STRINGIFY (command)); \
|
||||
return FALSE; \
|
||||
} \
|
||||
}G_STMT_END
|
||||
|
||||
int retval;
|
||||
GstCaps *allowed_caps;
|
||||
|
||||
GST_DEBUG_OBJECT (lame, "starting setup");
|
||||
|
||||
/* check if we're already setup; if we are, we might want to check
|
||||
* if this initialization is compatible with the previous one */
|
||||
/* FIXME: do this */
|
||||
if (lame->setup) {
|
||||
GST_WARNING_OBJECT (lame, "already setup");
|
||||
lame->setup = FALSE;
|
||||
}
|
||||
|
||||
lame->lgf = lame_init ();
|
||||
|
||||
if (lame->lgf == NULL)
|
||||
return FALSE;
|
||||
|
||||
/* copy the parameters over */
|
||||
lame_set_in_samplerate (lame->lgf, lame->samplerate);
|
||||
|
||||
/* let lame choose default samplerate unless outgoing sample rate is fixed */
|
||||
allowed_caps = gst_pad_get_allowed_caps (lame->srcpad);
|
||||
|
||||
if (allowed_caps != NULL) {
|
||||
GstStructure *structure;
|
||||
gint samplerate;
|
||||
|
||||
structure = gst_caps_get_structure (allowed_caps, 0);
|
||||
|
||||
if (gst_structure_get_int (structure, "rate", &samplerate)) {
|
||||
GST_DEBUG_OBJECT (lame, "Setting sample rate to %d as fixed in src caps",
|
||||
samplerate);
|
||||
lame_set_out_samplerate (lame->lgf, samplerate);
|
||||
} else {
|
||||
GST_DEBUG_OBJECT (lame, "Letting lame choose sample rate");
|
||||
lame_set_out_samplerate (lame->lgf, 0);
|
||||
}
|
||||
gst_caps_unref (allowed_caps);
|
||||
allowed_caps = NULL;
|
||||
} else {
|
||||
GST_DEBUG_OBJECT (lame, "No peer yet, letting lame choose sample rate");
|
||||
lame_set_out_samplerate (lame->lgf, 0);
|
||||
}
|
||||
|
||||
CHECK_ERROR (lame_set_num_channels (lame->lgf, lame->num_channels));
|
||||
|
||||
if (lame->target == LAMEMP3ENC_TARGET_QUALITY) {
|
||||
if (lame->fast_vbr)
|
||||
CHECK_ERROR (lame_set_VBR (lame->lgf, vbr_rh));
|
||||
else
|
||||
CHECK_ERROR (lame_set_VBR (lame->lgf, vbr_mtrh));
|
||||
CHECK_ERROR (lame_set_VBR_quality (lame->lgf, lame->vbr_quality));
|
||||
} else {
|
||||
CHECK_AND_FIXUP_BITRATE (lame, "bitrate", lame->bitrate);
|
||||
if (lame->cbr) {
|
||||
CHECK_ERROR (lame_set_VBR (lame->lgf, vbr_off));
|
||||
CHECK_ERROR (lame_set_brate (lame->lgf, lame->bitrate));
|
||||
} else {
|
||||
CHECK_ERROR (lame_set_VBR (lame->lgf, vbr_abr));
|
||||
CHECK_ERROR (lame_set_VBR_mean_bitrate_kbps (lame->lgf, lame->bitrate));
|
||||
}
|
||||
}
|
||||
|
||||
if (lame->encoding_engine_quality == LAMEMP3ENC_ENCODING_ENGINE_QUALITY_FAST)
|
||||
CHECK_ERROR (lame_set_quality (lame->lgf, 7));
|
||||
else if (lame->encoding_engine_quality ==
|
||||
LAMEMP3ENC_ENCODING_ENGINE_QUALITY_HIGH)
|
||||
CHECK_ERROR (lame_set_quality (lame->lgf, 2));
|
||||
/* else default */
|
||||
|
||||
if (lame->mono)
|
||||
CHECK_ERROR (lame_set_mode (lame->lgf, MONO));
|
||||
|
||||
/* 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 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_lamemp3enc_change_state (GstElement * element, GstStateChange transition)
|
||||
{
|
||||
GstLameMP3Enc *lame;
|
||||
GstStateChangeReturn result;
|
||||
|
||||
lame = GST_LAMEMP3ENC (element);
|
||||
|
||||
switch (transition) {
|
||||
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
||||
lame->last_flow = GST_FLOW_OK;
|
||||
lame->last_ts = GST_CLOCK_TIME_NONE;
|
||||
lame->eos_ts = GST_CLOCK_TIME_NONE;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
result = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
||||
|
||||
switch (transition) {
|
||||
case GST_STATE_CHANGE_READY_TO_NULL:
|
||||
gst_lamemp3enc_release_memory (lame);
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
gboolean
|
||||
gst_lamemp3enc_register (GstPlugin * plugin)
|
||||
{
|
||||
GST_DEBUG_CATEGORY_INIT (debug, "lamemp3enc", 0, "lame mp3 encoder");
|
||||
|
||||
if (!gst_element_register (plugin, "lamemp3enc", GST_RANK_NONE,
|
||||
GST_TYPE_LAMEMP3ENC))
|
||||
return FALSE;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
91
ext/lame/gstlamemp3enc.h
Normal file
91
ext/lame/gstlamemp3enc.h
Normal file
|
|
@ -0,0 +1,91 @@
|
|||
/* GStreamer
|
||||
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
||||
* Copyright (C) <2009> 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., 59 Temple Place - Suite 330,
|
||||
* Boston, MA 02111-1307, USA.
|
||||
*/
|
||||
|
||||
|
||||
#ifndef __GST_LAMEMP3ENC_H__
|
||||
#define __GST_LAMEMP3ENC_H__
|
||||
|
||||
|
||||
#include <gst/gst.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#include <lame/lame.h>
|
||||
|
||||
#define GST_TYPE_LAMEMP3ENC \
|
||||
(gst_lamemp3enc_get_type())
|
||||
#define GST_LAMEMP3ENC(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_LAMEMP3ENC,GstLameMP3Enc))
|
||||
#define GST_LAMEMP3ENC_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_LAMEMP3ENC,GstLameMP3EncClass))
|
||||
#define GST_IS_LAMEMP3ENC(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_LAMEMP3ENC))
|
||||
#define GST_IS_LAMEMP3ENC_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_LAMEMP3ENC))
|
||||
|
||||
typedef struct _GstLameMP3Enc GstLameMP3Enc;
|
||||
typedef struct _GstLameMP3EncClass GstLameMP3EncClass;
|
||||
|
||||
/**
|
||||
* GstLameMP3Enc:
|
||||
*
|
||||
* Opaque data structure.
|
||||
*/
|
||||
struct _GstLameMP3Enc {
|
||||
GstElement element;
|
||||
|
||||
/*< private >*/
|
||||
GstPad *srcpad, *sinkpad;
|
||||
|
||||
gint samplerate;
|
||||
gint num_channels;
|
||||
gboolean setup;
|
||||
|
||||
gint target;
|
||||
|
||||
gint bitrate;
|
||||
gboolean cbr;
|
||||
|
||||
gfloat vbr_quality;
|
||||
gboolean fast_vbr;
|
||||
|
||||
gint encoding_engine_quality;
|
||||
|
||||
gboolean mono;
|
||||
|
||||
/* track this so we don't send a last buffer in eos handler after error */
|
||||
GstFlowReturn last_flow;
|
||||
|
||||
lame_global_flags *lgf;
|
||||
|
||||
/* time tracker */
|
||||
guint64 last_ts, last_offs, last_duration, eos_ts;
|
||||
};
|
||||
|
||||
struct _GstLameMP3EncClass {
|
||||
GstElementClass parent_class;
|
||||
};
|
||||
|
||||
GType gst_lamemp3enc_get_type(void);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
|
||||
#endif /* __GST_LAMEMP3ENC_H__ */
|
||||
48
ext/lame/plugin.c
Normal file
48
ext/lame/plugin.c
Normal file
|
|
@ -0,0 +1,48 @@
|
|||
/* GStreamer
|
||||
* Copyright (C) <2009> 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., 59 Temple Place - Suite 330,
|
||||
* Boston, MA 02111-1307, USA.
|
||||
*/
|
||||
|
||||
#ifdef HAVE_CONFIG_H
|
||||
#include "config.h"
|
||||
#endif
|
||||
|
||||
#include <gst/gst.h>
|
||||
#include <gst/gst-i18n-plugin.h>
|
||||
|
||||
gboolean gst_lamemp3enc_register (GstPlugin * plugin);
|
||||
gboolean gst_lame_register (GstPlugin * plugin);
|
||||
|
||||
static gboolean
|
||||
plugin_init (GstPlugin * plugin)
|
||||
{
|
||||
#ifdef ENABLE_NLS
|
||||
bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
|
||||
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
|
||||
#endif /* ENABLE_NLS */
|
||||
|
||||
if (!gst_lamemp3enc_register (plugin) || !gst_lame_register (plugin))
|
||||
return FALSE;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
||||
GST_VERSION_MINOR,
|
||||
"lame",
|
||||
"Encode MP3s with LAME",
|
||||
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);
|
||||
Loading…
Reference in a new issue