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Under some conditions, GetMaxPosition() returns zero, which should cause position queries to fail rather than crash.
913 lines
26 KiB
C++
913 lines
26 KiB
C++
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/*
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Code based on modplugxmms
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XMMS plugin:
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Kenton Varda <temporal@gauge3d.org>
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Sound Engine:
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Olivier Lapicque <olivierl@jps.net>
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*/
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/**
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* SECTION:element-modplug
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*
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* Modplug uses the [modplug](http://modplug-xmms.sourceforge.net/) library to
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* decode tracked music in the MOD/S3M/XM/IT and related formats.
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*
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* ## Example pipeline
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*
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* |[
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* gst-launch-1.0 -v filesrc location=1990s-nostalgia.xm ! modplug ! audioconvert ! alsasink
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* ]| Play a FastTracker xm file.
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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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/* Required to not get an undefined warning
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* https://bugzilla.gnome.org/show_bug.cgi?id=613795
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*/
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#ifndef WORDS_BIGENDIAN
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#define WORDS_BIGENDIAN 0
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#endif
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#include <libmodplug/stdafx.h>
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#include <libmodplug/sndfile.h>
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#include "gstmodplug.h"
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#include <gst/gst.h>
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#include <stdlib.h>
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#include <gst/audio/audio.h>
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GST_DEBUG_CATEGORY_STATIC (modplug_debug);
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#define GST_CAT_DEFAULT modplug_debug
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enum
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{
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ARG_0,
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ARG_SONGNAME,
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ARG_REVERB,
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ARG_REVERB_DEPTH,
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ARG_REVERB_DELAY,
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ARG_MEGABASS,
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ARG_MEGABASS_AMOUNT,
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ARG_MEGABASS_RANGE,
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ARG_NOISE_REDUCTION,
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ARG_SURROUND,
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ARG_SURROUND_DEPTH,
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ARG_SURROUND_DELAY,
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ARG_OVERSAMP
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};
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#define DEFAULT_REVERB FALSE
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#define DEFAULT_REVERB_DEPTH 30
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#define DEFAULT_REVERB_DELAY 100
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#define DEFAULT_MEGABASS FALSE
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#define DEFAULT_MEGABASS_AMOUNT 40
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#define DEFAULT_MEGABASS_RANGE 30
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#define DEFAULT_SURROUND TRUE
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#define DEFAULT_SURROUND_DEPTH 20
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#define DEFAULT_SURROUND_DELAY 20
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#define DEFAULT_OVERSAMP TRUE
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#define DEFAULT_NOISE_REDUCTION TRUE
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#define FORMATS "{ " GST_AUDIO_NE (S32) ", " GST_AUDIO_NE (S16) ", U8 }"
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static GstStaticPadTemplate modplug_src_template_factory =
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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/x-raw,"
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" format = (string) " FORMATS ", "
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" layout = (string) interleaved, "
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" rate = (int) { 8000, 11025, 22050, 44100 },"
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" channels = (int) [ 1, 2 ]"));
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static GstStaticPadTemplate modplug_sink_template_factory =
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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-mod; audio/x-xm; audio/x-it; audio/x-s3m; "
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"audio/x-stm"));
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static void gst_modplug_dispose (GObject * object);
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static void gst_modplug_set_property (GObject * object,
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guint id, const GValue * value, GParamSpec * pspec);
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static void gst_modplug_get_property (GObject * object,
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guint id, GValue * value, GParamSpec * pspec);
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static gboolean gst_modplug_src_event (GstPad * pad, GstObject * parent,
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GstEvent * event);
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static gboolean gst_modplug_src_query (GstPad * pad, GstObject * parent,
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GstQuery * query);
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static GstStateChangeReturn gst_modplug_change_state (GstElement * element,
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GstStateChange transition);
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static gboolean gst_modplug_sinkpad_activate (GstPad * pad, GstObject * parent);
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static gboolean gst_modplug_sinkpad_activate_mode (GstPad * pad,
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GstObject * parent, GstPadMode mode, gboolean active);
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static void gst_modplug_loop (GstModPlug * element);
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#define parent_class gst_modplug_parent_class
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G_DEFINE_TYPE (GstModPlug, gst_modplug, GST_TYPE_ELEMENT);
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static void
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gst_modplug_class_init (GstModPlugClass * 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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gobject_class->set_property = gst_modplug_set_property;
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gobject_class->get_property = gst_modplug_get_property;
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gobject_class->dispose = gst_modplug_dispose;
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SONGNAME,
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g_param_spec_string ("songname", "Songname", "The song name",
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NULL, (GParamFlags) (G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_REVERB,
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g_param_spec_boolean ("reverb", "reverb", "Reverb",
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DEFAULT_REVERB,
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(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_REVERB_DEPTH,
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g_param_spec_int ("reverb-depth", "reverb depth", "Reverb depth",
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0, 100, DEFAULT_REVERB_DEPTH,
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(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_REVERB_DELAY,
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g_param_spec_int ("reverb-delay", "reverb delay", "Reverb delay",
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0, 200, DEFAULT_REVERB_DELAY,
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(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MEGABASS,
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g_param_spec_boolean ("megabass", "megabass", "Megabass",
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DEFAULT_MEGABASS,
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(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MEGABASS_AMOUNT,
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g_param_spec_int ("megabass-amount", "megabass amount", "Megabass amount",
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0, 100, DEFAULT_MEGABASS_AMOUNT,
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(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MEGABASS_RANGE,
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g_param_spec_int ("megabass-range", "megabass range", "Megabass range",
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0, 100, DEFAULT_MEGABASS_RANGE,
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(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SURROUND,
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g_param_spec_boolean ("surround", "surround", "Surround",
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DEFAULT_SURROUND,
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(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SURROUND_DEPTH,
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g_param_spec_int ("surround-depth", "surround depth", "Surround depth",
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0, 100, DEFAULT_SURROUND_DEPTH,
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(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SURROUND_DELAY,
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g_param_spec_int ("surround-delay", "surround delay", "Surround delay",
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0, 40, DEFAULT_SURROUND_DELAY,
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(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_OVERSAMP,
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g_param_spec_boolean ("oversamp", "oversamp", "oversamp",
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DEFAULT_OVERSAMP,
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(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_NOISE_REDUCTION,
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g_param_spec_boolean ("noise-reduction", "noise reduction",
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"noise reduction", DEFAULT_NOISE_REDUCTION,
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(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
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gstelement_class->change_state = gst_modplug_change_state;
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gst_element_class_add_static_pad_template (gstelement_class, &modplug_sink_template_factory);
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gst_element_class_add_static_pad_template (gstelement_class, &modplug_src_template_factory);
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gst_element_class_set_static_metadata (gstelement_class, "ModPlug",
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"Codec/Decoder/Audio", "Module decoder based on modplug engine",
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"Jeremy SIMON <jsimon13@yahoo.fr>");
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GST_DEBUG_CATEGORY_INIT (modplug_debug, "modplug", 0, "ModPlug element");
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}
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static void
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gst_modplug_init (GstModPlug * modplug)
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{
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/* create the sink and src pads */
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modplug->sinkpad =
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gst_pad_new_from_static_template (&modplug_sink_template_factory, "sink");
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gst_pad_set_activate_function (modplug->sinkpad,
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GST_DEBUG_FUNCPTR (gst_modplug_sinkpad_activate));
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gst_pad_set_activatemode_function (modplug->sinkpad,
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GST_DEBUG_FUNCPTR (gst_modplug_sinkpad_activate_mode));
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gst_element_add_pad (GST_ELEMENT (modplug), modplug->sinkpad);
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modplug->srcpad =
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gst_pad_new_from_static_template (&modplug_src_template_factory, "src");
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gst_pad_set_event_function (modplug->srcpad,
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GST_DEBUG_FUNCPTR (gst_modplug_src_event));
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gst_pad_set_query_function (modplug->srcpad,
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GST_DEBUG_FUNCPTR (gst_modplug_src_query));
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gst_element_add_pad (GST_ELEMENT (modplug), modplug->srcpad);
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modplug->reverb = DEFAULT_REVERB;
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modplug->reverb_depth = DEFAULT_REVERB_DEPTH;
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modplug->reverb_delay = DEFAULT_REVERB_DELAY;
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modplug->megabass = DEFAULT_MEGABASS;
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modplug->megabass_amount = DEFAULT_MEGABASS_AMOUNT;
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modplug->megabass_range = DEFAULT_MEGABASS_RANGE;
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modplug->surround = DEFAULT_SURROUND;
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modplug->surround_depth = DEFAULT_SURROUND_DEPTH;
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modplug->surround_delay = DEFAULT_SURROUND_DELAY;
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modplug->oversamp = DEFAULT_OVERSAMP;
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modplug->noise_reduction = DEFAULT_NOISE_REDUCTION;
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modplug->bits = 16;
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modplug->channel = 2;
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modplug->frequency = 44100;
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}
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static void
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gst_modplug_dispose (GObject * object)
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{
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GstModPlug *modplug = GST_MODPLUG (object);
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G_OBJECT_CLASS (parent_class)->dispose (object);
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if (modplug->buffer) {
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gst_buffer_unref (modplug->buffer);
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modplug->buffer = NULL;
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}
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}
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static gboolean
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gst_modplug_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
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{
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GstModPlug *modplug;
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gboolean res = FALSE;
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modplug = GST_MODPLUG (parent);
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switch (GST_QUERY_TYPE (query)) {
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case GST_QUERY_DURATION:
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{
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GstFormat format;
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if (!modplug->mSoundFile)
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goto done;
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gst_query_parse_duration (query, &format, NULL);
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if (format == GST_FORMAT_TIME) {
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gst_query_set_duration (query, format, modplug->song_length);
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res = TRUE;
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}
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}
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break;
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case GST_QUERY_POSITION:
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{
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GstFormat format;
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if (!modplug->mSoundFile)
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goto done;
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gst_query_parse_position (query, &format, NULL);
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if (format == GST_FORMAT_TIME) {
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gint64 pos;
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guint32 max;
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max = modplug->mSoundFile->GetMaxPosition();
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if (max > 0) {
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pos = (modplug->song_length * modplug->mSoundFile->GetCurrentPos ()) /
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max;
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gst_query_set_position (query, format, pos);
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res = TRUE;
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}
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}
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}
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break;
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default:
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res = gst_pad_query_default (pad, parent, query);
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break;
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}
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done:
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return res;
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}
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static gboolean
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gst_modplug_do_seek (GstModPlug * modplug, GstEvent * event)
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{
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gdouble rate;
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GstFormat format;
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GstSeekFlags flags;
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GstSeekType cur_type, stop_type;
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gboolean flush;
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gint64 cur, stop;
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GstSegment seg;
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if (modplug->frequency == 0)
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goto no_song;
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gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
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&stop_type, &stop);
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if (format != GST_FORMAT_TIME)
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goto no_time;
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/* FIXME: we should be using GstSegment for all this */
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if (cur_type != GST_SEEK_TYPE_SET || stop_type != GST_SEEK_TYPE_NONE)
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goto not_supported;
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if (stop_type == GST_SEEK_TYPE_NONE)
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stop = GST_CLOCK_TIME_NONE;
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if (!GST_CLOCK_TIME_IS_VALID (stop) && modplug->song_length > 0)
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stop = modplug->song_length;
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cur = CLAMP (cur, -1, modplug->song_length);
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GST_DEBUG_OBJECT (modplug, "seek to %" GST_TIME_FORMAT,
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GST_TIME_ARGS ((guint64) cur));
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modplug->seek_at = cur;
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flush = ((flags & GST_SEEK_FLAG_FLUSH) == GST_SEEK_FLAG_FLUSH);
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if (flush) {
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gst_pad_push_event (modplug->srcpad, gst_event_new_flush_start ());
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} else {
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gst_pad_stop_task (modplug->sinkpad);
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}
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GST_PAD_STREAM_LOCK (modplug->sinkpad);
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if (flags & GST_SEEK_FLAG_SEGMENT) {
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gst_element_post_message (GST_ELEMENT (modplug),
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gst_message_new_segment_start (GST_OBJECT (modplug), format, cur));
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}
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if (flush) {
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gst_pad_push_event (modplug->srcpad, gst_event_new_flush_stop (TRUE));
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}
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GST_LOG_OBJECT (modplug, "sending newsegment from %" GST_TIME_FORMAT "-%"
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GST_TIME_FORMAT ", pos=%" GST_TIME_FORMAT,
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GST_TIME_ARGS ((guint64) cur), GST_TIME_ARGS ((guint64) stop),
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GST_TIME_ARGS ((guint64) cur));
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|
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gst_segment_init (&seg, GST_FORMAT_TIME);
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seg.rate = rate;
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seg.start = cur;
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seg.stop = stop;
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seg.time = cur;
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gst_pad_push_event (modplug->srcpad, gst_event_new_segment (&seg));
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modplug->offset =
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gst_util_uint64_scale_int (cur, modplug->frequency, GST_SECOND);
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|
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gst_pad_start_task (modplug->sinkpad,
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(GstTaskFunction) gst_modplug_loop, modplug, NULL);
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|
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GST_PAD_STREAM_UNLOCK (modplug->sinkpad);
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return TRUE;
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|
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/* ERROR */
|
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no_song:
|
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{
|
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GST_DEBUG_OBJECT (modplug, "no song loaded yet");
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return FALSE;
|
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}
|
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no_time:
|
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{
|
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GST_DEBUG_OBJECT (modplug, "seeking is only supported in TIME format");
|
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return FALSE;
|
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}
|
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not_supported:
|
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{
|
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GST_DEBUG_OBJECT (modplug, "unsupported seek type");
|
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return FALSE;
|
|
}
|
|
}
|
|
|
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static gboolean
|
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gst_modplug_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
|
|
{
|
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GstModPlug *modplug;
|
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gboolean res = FALSE;
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|
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modplug = GST_MODPLUG (parent);
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|
|
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switch (GST_EVENT_TYPE (event)) {
|
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case GST_EVENT_SEEK:
|
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res = gst_modplug_do_seek (modplug, event);
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break;
|
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default:
|
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res = gst_pad_event_default (pad, parent, event);
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break;
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}
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return res;
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}
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|
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static gboolean
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gst_modplug_load_song (GstModPlug * modplug)
|
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{
|
|
GstCaps *newcaps;
|
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GstStructure *structure;
|
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GstMapInfo map;
|
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const gchar *format;
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|
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GST_DEBUG_OBJECT (modplug, "Setting caps");
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|
|
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/* negotiate srcpad caps */
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if ((newcaps = gst_pad_get_allowed_caps (modplug->srcpad)) == NULL) {
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newcaps = gst_pad_get_pad_template_caps (modplug->srcpad);
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}
|
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newcaps = gst_caps_make_writable (newcaps);
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|
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GST_DEBUG_OBJECT (modplug, "allowed caps %" GST_PTR_FORMAT, newcaps);
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|
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structure = gst_caps_get_structure (newcaps, 0);
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|
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if (!gst_structure_fixate_field_string (structure, "format",
|
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GST_AUDIO_NE (S16)))
|
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GST_WARNING_OBJECT (modplug, "Failed to fixate format to S16NE");
|
|
if (!gst_structure_fixate_field_nearest_int (structure, "rate", 44100))
|
|
GST_WARNING_OBJECT (modplug, "Failed to fixate rate to 44100");
|
|
if (!gst_structure_fixate_field_nearest_int (structure, "channels", 2))
|
|
GST_WARNING_OBJECT (modplug,
|
|
"Failed to fixate number of channels to stereo");
|
|
|
|
GST_DEBUG_OBJECT (modplug, "normalized caps %" GST_PTR_FORMAT, newcaps);
|
|
|
|
newcaps = gst_caps_fixate (newcaps);
|
|
|
|
GST_DEBUG_OBJECT (modplug, "fixated caps %" GST_PTR_FORMAT, newcaps);
|
|
|
|
/* set up modplug to output the negotiated format */
|
|
structure = gst_caps_get_structure (newcaps, 0);
|
|
format = gst_structure_get_string (structure, "format");
|
|
|
|
if (g_str_equal (format, GST_AUDIO_NE (S32)))
|
|
modplug->bits = 32;
|
|
else if (g_str_equal (format, GST_AUDIO_NE (S16)))
|
|
modplug->bits = 16;
|
|
else
|
|
modplug->bits = 8;
|
|
|
|
gst_structure_get_int (structure, "channels", &modplug->channel);
|
|
gst_structure_get_int (structure, "rate", &modplug->frequency);
|
|
|
|
GST_DEBUG_OBJECT (modplug,
|
|
"Audio settings: %d bits, %d channel(s), %d Hz sampling rate",
|
|
modplug->bits, modplug->channel, modplug->frequency);
|
|
|
|
gst_pad_set_caps (modplug->srcpad, newcaps);
|
|
gst_caps_unref (newcaps);
|
|
|
|
modplug->read_samples = 1152;
|
|
modplug->read_bytes =
|
|
modplug->read_samples * modplug->channel * modplug->bits / 8;
|
|
|
|
GST_DEBUG_OBJECT (modplug, "Loading song");
|
|
|
|
modplug->mSoundFile = new CSoundFile;
|
|
|
|
modplug->mSoundFile->SetWaveConfig (modplug->frequency, modplug->bits,
|
|
modplug->channel);
|
|
|
|
modplug->mSoundFile->SetWaveConfigEx (modplug->surround, !modplug->oversamp,
|
|
modplug->reverb, true, modplug->megabass, modplug->noise_reduction, true);
|
|
modplug->mSoundFile->SetResamplingMode (SRCMODE_POLYPHASE);
|
|
|
|
if (modplug->surround)
|
|
modplug->mSoundFile->SetSurroundParameters (modplug->surround_depth,
|
|
modplug->surround_delay);
|
|
|
|
if (modplug->megabass)
|
|
modplug->mSoundFile->SetXBassParameters (modplug->megabass_amount,
|
|
modplug->megabass_range);
|
|
|
|
if (modplug->reverb)
|
|
modplug->mSoundFile->SetReverbParameters (modplug->reverb_depth,
|
|
modplug->reverb_delay);
|
|
|
|
|
|
gst_buffer_map (modplug->buffer, &map, GST_MAP_READ);
|
|
if (!modplug->mSoundFile->Create (map.data, modplug->song_size))
|
|
goto load_error;
|
|
gst_buffer_unmap (modplug->buffer, &map);
|
|
|
|
modplug->song_length = modplug->mSoundFile->GetSongTime () * GST_SECOND;
|
|
modplug->seek_at = -1;
|
|
|
|
GST_INFO_OBJECT (modplug, "Song length: %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS ((guint64) modplug->song_length));
|
|
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
load_error:
|
|
{
|
|
gst_buffer_unmap (modplug->buffer, &map);
|
|
GST_ELEMENT_ERROR (modplug, STREAM, DECODE, (NULL),
|
|
("Unable to load song"));
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_modplug_sinkpad_activate (GstPad * sinkpad, GstObject * parent)
|
|
{
|
|
GstQuery *query;
|
|
gboolean pull_mode;
|
|
|
|
query = gst_query_new_scheduling ();
|
|
|
|
if (!gst_pad_peer_query (sinkpad, query)) {
|
|
gst_query_unref (query);
|
|
goto activate_push;
|
|
}
|
|
|
|
pull_mode = gst_query_has_scheduling_mode_with_flags (query,
|
|
GST_PAD_MODE_PULL, GST_SCHEDULING_FLAG_SEEKABLE);
|
|
gst_query_unref (query);
|
|
|
|
if (!pull_mode)
|
|
goto activate_push;
|
|
|
|
GST_DEBUG_OBJECT (sinkpad, "activating pull");
|
|
return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, TRUE);
|
|
|
|
activate_push:
|
|
{
|
|
GST_DEBUG_OBJECT (sinkpad, "activating push");
|
|
return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PUSH, TRUE);
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_modplug_sinkpad_activate_mode (GstPad * pad, GstObject * parent,
|
|
GstPadMode mode, gboolean active)
|
|
{
|
|
GstModPlug *modplug = GST_MODPLUG (parent);
|
|
gboolean res;
|
|
|
|
switch (mode) {
|
|
case GST_PAD_MODE_PUSH:
|
|
res = TRUE;
|
|
break;
|
|
case GST_PAD_MODE_PULL:
|
|
if (active) {
|
|
res = gst_pad_start_task (pad, (GstTaskFunction) gst_modplug_loop,
|
|
modplug, NULL);
|
|
} else {
|
|
res = gst_pad_stop_task (pad);
|
|
}
|
|
break;
|
|
default:
|
|
res = FALSE;
|
|
break;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static gboolean
|
|
gst_modplug_get_upstream_size (GstModPlug * modplug, gint64 * length)
|
|
{
|
|
gboolean res = FALSE;
|
|
GstPad *peer;
|
|
|
|
peer = gst_pad_get_peer (modplug->sinkpad);
|
|
if (peer == NULL)
|
|
return FALSE;
|
|
|
|
if (gst_pad_query_duration (peer, GST_FORMAT_BYTES, length) && *length >= 0) {
|
|
res = TRUE;
|
|
}
|
|
|
|
gst_object_unref (peer);
|
|
return res;
|
|
}
|
|
|
|
static void
|
|
gst_modplug_loop (GstModPlug * modplug)
|
|
{
|
|
GstFlowReturn flow;
|
|
GstBuffer *out = NULL;
|
|
GstMapInfo map;
|
|
|
|
g_assert (GST_IS_MODPLUG (modplug));
|
|
|
|
/* first, get the size of the song */
|
|
if (!modplug->song_size) {
|
|
if (!gst_modplug_get_upstream_size (modplug, &modplug->song_size)) {
|
|
GST_ELEMENT_ERROR (modplug, STREAM, DECODE, (NULL),
|
|
("Unable to load song"));
|
|
goto pause;
|
|
}
|
|
|
|
if (modplug->buffer) {
|
|
gst_buffer_unref (modplug->buffer);
|
|
}
|
|
modplug->buffer = gst_buffer_new_and_alloc (modplug->song_size);
|
|
modplug->offset = 0;
|
|
}
|
|
|
|
/* read in the song data */
|
|
if (!modplug->mSoundFile) {
|
|
GstBuffer *buffer = NULL;
|
|
guint64 read_size = modplug->song_size - modplug->offset;
|
|
|
|
if (read_size > 4096)
|
|
read_size = 4096;
|
|
|
|
flow =
|
|
gst_pad_pull_range (modplug->sinkpad, modplug->offset, read_size,
|
|
&buffer);
|
|
if (flow != GST_FLOW_OK) {
|
|
GST_ELEMENT_ERROR (modplug, STREAM, DECODE, (NULL),
|
|
("Unable to load song"));
|
|
goto pause;
|
|
}
|
|
|
|
/* GST_LOG_OBJECT (modplug, "Read %u bytes", GST_BUFFER_SIZE (buffer)); */
|
|
gst_buffer_map (buffer, &map, GST_MAP_READ);
|
|
gst_buffer_fill (modplug->buffer, modplug->offset, map.data, map.size);
|
|
gst_buffer_unmap (buffer, &map);
|
|
gst_buffer_unref (buffer);
|
|
|
|
modplug->offset += read_size;
|
|
|
|
/* actually load it */
|
|
if (modplug->offset == modplug->song_size) {
|
|
GstTagList *tags;
|
|
gboolean ok;
|
|
#define COMMENT_SIZE 16384
|
|
gchar comment[COMMENT_SIZE];
|
|
GstSegment seg;
|
|
|
|
ok = gst_modplug_load_song (modplug);
|
|
gst_buffer_unref (modplug->buffer);
|
|
modplug->buffer = NULL;
|
|
modplug->offset = 0;
|
|
|
|
if (!ok) {
|
|
goto pause;
|
|
}
|
|
|
|
gst_segment_init (&seg, GST_FORMAT_TIME);
|
|
seg.stop = modplug->song_length;
|
|
gst_pad_push_event (modplug->srcpad, gst_event_new_segment (&seg));
|
|
|
|
/* get and send metadata */
|
|
tags = gst_tag_list_new_empty ();
|
|
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND,
|
|
GST_TAG_TITLE, modplug->mSoundFile->GetTitle (),
|
|
GST_TAG_BEATS_PER_MINUTE,
|
|
(gdouble) modplug->mSoundFile->GetMusicTempo (), NULL);
|
|
|
|
if (modplug->mSoundFile->GetSongComments ((gchar *) & comment,
|
|
COMMENT_SIZE, 32)) {
|
|
comment[COMMENT_SIZE - 1] = '\0';
|
|
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND,
|
|
GST_TAG_COMMENT, comment, NULL);
|
|
}
|
|
gst_pad_push_event (modplug->srcpad, gst_event_new_tag (tags));
|
|
} else {
|
|
/* not fully loaded yet */
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* could move this to gst_modplug_src_event
|
|
* if libmodplug was definitely thread safe.. */
|
|
if (modplug->seek_at != -1) {
|
|
gint seek_to_pos;
|
|
gfloat temp;
|
|
|
|
temp = (gfloat) modplug->song_length / modplug->seek_at;
|
|
seek_to_pos = (gint) (modplug->mSoundFile->GetMaxPosition () / temp);
|
|
|
|
GST_DEBUG_OBJECT (modplug, "Seeking to row %d", seek_to_pos);
|
|
|
|
modplug->mSoundFile->SetCurrentPos (seek_to_pos);
|
|
modplug->seek_at = -1;
|
|
}
|
|
|
|
/* read and output a buffer */
|
|
GST_LOG_OBJECT (modplug, "Read %d bytes", (gint) modplug->read_bytes);
|
|
/* libmodplug 0.8.7 trashes memory */
|
|
out = gst_buffer_new_allocate (NULL, modplug->read_bytes * 2, NULL);
|
|
|
|
gst_buffer_map (out, &map, GST_MAP_WRITE);
|
|
if (!modplug->mSoundFile->Read (map.data, modplug->read_bytes)) {
|
|
gst_buffer_unmap (out, &map);
|
|
goto eos;
|
|
}
|
|
gst_buffer_unmap (out, &map);
|
|
gst_buffer_resize (out, 0, modplug->read_bytes);
|
|
|
|
GST_BUFFER_DURATION (out) =
|
|
gst_util_uint64_scale_int (modplug->read_samples, GST_SECOND,
|
|
modplug->frequency);
|
|
GST_BUFFER_OFFSET (out) = modplug->offset;
|
|
GST_BUFFER_TIMESTAMP (out) =
|
|
gst_util_uint64_scale_int (modplug->offset, GST_SECOND,
|
|
modplug->frequency);
|
|
|
|
modplug->offset += modplug->read_samples;
|
|
|
|
flow = gst_pad_push (modplug->srcpad, out);
|
|
|
|
if (flow != GST_FLOW_OK) {
|
|
GST_LOG_OBJECT (modplug, "pad push flow: %s", gst_flow_get_name (flow));
|
|
goto pause;
|
|
}
|
|
|
|
return;
|
|
|
|
eos:
|
|
{
|
|
gst_buffer_unref (out);
|
|
GST_INFO_OBJECT (modplug, "EOS");
|
|
gst_pad_push_event (modplug->srcpad, gst_event_new_eos ());
|
|
goto pause;
|
|
}
|
|
|
|
pause:
|
|
{
|
|
GST_INFO_OBJECT (modplug, "Pausing");
|
|
gst_pad_pause_task (modplug->sinkpad);
|
|
}
|
|
}
|
|
|
|
|
|
static GstStateChangeReturn
|
|
gst_modplug_change_state (GstElement * element, GstStateChange transition)
|
|
{
|
|
GstModPlug *modplug;
|
|
GstStateChangeReturn ret;
|
|
|
|
modplug = GST_MODPLUG (element);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
modplug->buffer = NULL;
|
|
modplug->offset = 0;
|
|
modplug->song_size = 0;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
if (ret == GST_STATE_CHANGE_FAILURE)
|
|
return ret;
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
if (modplug->buffer) {
|
|
gst_buffer_unref (modplug->buffer);
|
|
modplug->buffer = NULL;
|
|
}
|
|
if (modplug->mSoundFile) {
|
|
modplug->mSoundFile->Destroy ();
|
|
delete modplug->mSoundFile;
|
|
modplug->mSoundFile = NULL;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return GST_STATE_CHANGE_SUCCESS;
|
|
}
|
|
|
|
|
|
static void
|
|
gst_modplug_set_property (GObject * object, guint id, const GValue * value,
|
|
GParamSpec * pspec)
|
|
{
|
|
GstModPlug *modplug;
|
|
|
|
g_return_if_fail (GST_IS_MODPLUG (object));
|
|
modplug = GST_MODPLUG (object);
|
|
|
|
switch (id) {
|
|
case ARG_REVERB:
|
|
modplug->reverb = g_value_get_boolean (value);
|
|
break;
|
|
case ARG_REVERB_DEPTH:
|
|
modplug->reverb_depth = g_value_get_int (value);
|
|
break;
|
|
case ARG_REVERB_DELAY:
|
|
modplug->reverb_delay = g_value_get_int (value);
|
|
break;
|
|
case ARG_MEGABASS:
|
|
modplug->megabass = g_value_get_boolean (value);
|
|
break;
|
|
case ARG_MEGABASS_AMOUNT:
|
|
modplug->megabass_amount = g_value_get_int (value);
|
|
break;
|
|
case ARG_MEGABASS_RANGE:
|
|
modplug->megabass_range = g_value_get_int (value);
|
|
break;
|
|
case ARG_NOISE_REDUCTION:
|
|
modplug->noise_reduction = g_value_get_boolean (value);
|
|
break;
|
|
case ARG_SURROUND:
|
|
modplug->surround = g_value_get_boolean (value);
|
|
break;
|
|
case ARG_SURROUND_DEPTH:
|
|
modplug->surround_depth = g_value_get_int (value);
|
|
break;
|
|
case ARG_SURROUND_DELAY:
|
|
modplug->surround_delay = g_value_get_int (value);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_modplug_get_property (GObject * object, guint id, GValue * value,
|
|
GParamSpec * pspec)
|
|
{
|
|
GstModPlug *modplug;
|
|
|
|
g_return_if_fail (GST_IS_MODPLUG (object));
|
|
modplug = GST_MODPLUG (object);
|
|
|
|
switch (id) {
|
|
case ARG_REVERB:
|
|
g_value_set_boolean (value, modplug->reverb);
|
|
break;
|
|
case ARG_REVERB_DEPTH:
|
|
g_value_set_int (value, modplug->reverb_depth);
|
|
break;
|
|
case ARG_REVERB_DELAY:
|
|
g_value_set_int (value, modplug->reverb_delay);
|
|
break;
|
|
case ARG_MEGABASS:
|
|
g_value_set_boolean (value, modplug->megabass);
|
|
break;
|
|
case ARG_MEGABASS_AMOUNT:
|
|
g_value_set_int (value, modplug->megabass_amount);
|
|
break;
|
|
case ARG_MEGABASS_RANGE:
|
|
g_value_set_int (value, modplug->megabass_range);
|
|
break;
|
|
case ARG_SURROUND:
|
|
g_value_set_boolean (value, modplug->surround);
|
|
break;
|
|
case ARG_SURROUND_DEPTH:
|
|
g_value_set_int (value, modplug->surround_depth);
|
|
break;
|
|
case ARG_SURROUND_DELAY:
|
|
g_value_set_int (value, modplug->surround_delay);
|
|
break;
|
|
case ARG_NOISE_REDUCTION:
|
|
g_value_set_boolean (value, modplug->noise_reduction);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
plugin_init (GstPlugin * plugin)
|
|
{
|
|
return gst_element_register (plugin, "modplug",
|
|
GST_RANK_PRIMARY, GST_TYPE_MODPLUG);
|
|
}
|
|
|
|
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
|
GST_VERSION_MINOR,
|
|
modplug,
|
|
".MOD audio decoding",
|
|
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
|