/* GStreamer * Copyright (C) <1999> Erik Walthinsen * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include "gstsiddec.h" /* Sidec signals and args */ enum { /* FILL ME */ LAST_SIGNAL }; #define DEFAULT_BLOCKSIZE 4096 enum { ARG_0, ARG_TUNE, ARG_CLOCK, ARG_MEMORY, ARG_FILTER, ARG_MEASURED_VOLUME, ARG_MOS8580, ARG_FORCE_SPEED, ARG_BLOCKSIZE, ARG_METADATA /* FILL ME */ }; static GstStaticPadTemplate sink_templ = GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, GST_STATIC_CAPS ("audio/x-sid") ); static GstStaticPadTemplate src_templ = GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS ("audio/x-raw-int, " "endianness = (int) BYTE_ORDER, " "signed = (boolean) { true, false }, " "width = (int) { 8, 16 }, " "depth = (int) { 8, 16 }, " "rate = (int) [ 8000, 48000 ], " "channels = (int) [ 1, 2 ]") ); #define GST_TYPE_SID_CLOCK (gst_sid_clock_get_type()) static GType gst_sid_clock_get_type (void) { static GType sid_clock_type = 0; static GEnumValue sid_clock[] = { {SIDTUNE_CLOCK_PAL, "0", "PAL"}, {SIDTUNE_CLOCK_NTSC, "1", "NTSC"}, {0, NULL, NULL}, }; if (!sid_clock_type) { sid_clock_type = g_enum_register_static ("GstSidClock", sid_clock); } return sid_clock_type; } #define GST_TYPE_SID_MEMORY (gst_sid_memory_get_type()) static GType gst_sid_memory_get_type (void) { static GType sid_memory_type = 0; static GEnumValue sid_memory[] = { {MPU_BANK_SWITCHING, "32", "Bank Switching"}, {MPU_TRANSPARENT_ROM, "33", "Transparent ROM"}, {MPU_PLAYSID_ENVIRONMENT, "34", "Playsid Environment"}, {0, NULL, NULL}, }; if (!sid_memory_type) { sid_memory_type = g_enum_register_static ("GstSidMemory", sid_memory); } return sid_memory_type; } static void gst_siddec_base_init (gpointer g_class); static void gst_siddec_class_init (GstSidDec * klass); static void gst_siddec_init (GstSidDec * siddec); static GstFlowReturn gst_siddec_chain (GstPad * pad, GstBuffer * buffer); static gboolean gst_siddec_sink_event (GstPad * pad, GstEvent * event); static gboolean gst_siddec_src_convert (GstPad * pad, GstFormat src_format, gint64 src_value, GstFormat * dest_format, gint64 * dest_value); static gboolean gst_siddec_src_query (GstPad * pad, GstQuery * query); static void gst_siddec_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static void gst_siddec_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static GstElementClass *parent_class = NULL; //static guint gst_siddec_signals[LAST_SIGNAL] = { 0 }; GType gst_siddec_get_type (void) { static GType siddec_type = 0; if (!siddec_type) { static const GTypeInfo siddec_info = { sizeof (GstSidDecClass), gst_siddec_base_init, NULL, (GClassInitFunc) gst_siddec_class_init, NULL, NULL, sizeof (GstSidDec), 0, (GInstanceInitFunc) gst_siddec_init, NULL }; siddec_type = g_type_register_static (GST_TYPE_ELEMENT, "GstSidDec", &siddec_info, (GTypeFlags) 0); } return siddec_type; } static void gst_siddec_base_init (gpointer g_class) { static GstElementDetails gst_siddec_details = GST_ELEMENT_DETAILS ("Sid decoder", "Codec/Decoder/Audio", "Use sidplay to decode SID audio tunes", "Wim Taymans "); GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); gst_element_class_set_details (element_class, &gst_siddec_details); gst_element_class_add_pad_template (element_class, gst_static_pad_template_get (&src_templ)); gst_element_class_add_pad_template (element_class, gst_static_pad_template_get (&sink_templ)); } static void gst_siddec_class_init (GstSidDec * klass) { GObjectClass *gobject_class; GstElementClass *gstelement_class; gobject_class = (GObjectClass *) klass; gstelement_class = (GstElementClass *) klass; parent_class = GST_ELEMENT_CLASS (g_type_class_ref (GST_TYPE_ELEMENT)); gobject_class->set_property = gst_siddec_set_property; gobject_class->get_property = gst_siddec_get_property; g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TUNE, g_param_spec_int ("tune", "tune", "tune", 1, 100, 1, (GParamFlags) G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CLOCK, g_param_spec_enum ("clock", "clock", "clock", GST_TYPE_SID_CLOCK, SIDTUNE_CLOCK_PAL, (GParamFlags) G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MEMORY, g_param_spec_enum ("memory", "memory", "memory", GST_TYPE_SID_MEMORY, MPU_PLAYSID_ENVIRONMENT, (GParamFlags) G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FILTER, g_param_spec_boolean ("filter", "filter", "filter", TRUE, (GParamFlags) G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MEASURED_VOLUME, g_param_spec_boolean ("measured_volume", "measured_volume", "measured_volume", TRUE, (GParamFlags) G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MOS8580, g_param_spec_boolean ("mos8580", "mos8580", "mos8580", TRUE, (GParamFlags) G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FORCE_SPEED, g_param_spec_boolean ("force_speed", "force_speed", "force_speed", TRUE, (GParamFlags) G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BLOCKSIZE, g_param_spec_ulong ("blocksize", "Block size", "Size in bytes to output per buffer", 1, G_MAXULONG, DEFAULT_BLOCKSIZE, (GParamFlags) G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, ARG_METADATA, g_param_spec_boxed ("metadata", "Metadata", "Metadata", GST_TYPE_CAPS, (GParamFlags) G_PARAM_READABLE)); } static void gst_siddec_init (GstSidDec * siddec) { siddec->sinkpad = gst_pad_new_from_template (gst_static_pad_template_get (&sink_templ), "sink"); gst_pad_set_query_function (siddec->sinkpad, NULL); gst_pad_set_event_function (siddec->sinkpad, gst_siddec_sink_event); gst_pad_set_chain_function (siddec->sinkpad, gst_siddec_chain); gst_element_add_pad (GST_ELEMENT (siddec), siddec->sinkpad); siddec->srcpad = gst_pad_new_from_template (gst_static_pad_template_get (&src_templ), "src"); gst_pad_set_event_function (siddec->srcpad, NULL); gst_pad_set_query_function (siddec->srcpad, gst_siddec_src_query); gst_element_add_pad (GST_ELEMENT (siddec), siddec->srcpad); siddec->engine = new emuEngine (); siddec->tune = new sidTune (0); siddec->config = (emuConfig *) g_malloc (sizeof (emuConfig)); siddec->config->frequency = 44100; // frequency siddec->config->bitsPerSample = SIDEMU_16BIT; // bits per sample siddec->config->sampleFormat = SIDEMU_SIGNED_PCM; // sample fomat siddec->config->channels = SIDEMU_STEREO; // channels siddec->config->sidChips = 0; // - siddec->config->volumeControl = SIDEMU_NONE; // volume control siddec->config->mos8580 = TRUE; // mos8580 siddec->config->measuredVolume = TRUE; // measure volume siddec->config->emulateFilter = TRUE; // emulate filter siddec->config->filterFs = SIDEMU_DEFAULTFILTERFS; // filter Fs siddec->config->filterFm = SIDEMU_DEFAULTFILTERFM; // filter Fm siddec->config->filterFt = SIDEMU_DEFAULTFILTERFT; // filter Ft siddec->config->memoryMode = MPU_PLAYSID_ENVIRONMENT; // memory mode siddec->config->clockSpeed = SIDTUNE_CLOCK_PAL; // clock speed siddec->config->forceSongSpeed = TRUE; // force song speed siddec->config->digiPlayerScans = 0; // digi player scans siddec->config->autoPanning = SIDEMU_NONE; // auto panning siddec->engine->setConfig (*siddec->config); siddec->engine->setDefaultFilterStrength (); siddec->tune_buffer = (guchar *) g_malloc (maxSidtuneFileLen); siddec->tune_len = 0; siddec->tune_number = 1; siddec->total_bytes = 0; siddec->blocksize = DEFAULT_BLOCKSIZE; } #if 0 static void update_metadata (GstSidDec * siddec) { sidTuneInfo info; GstProps *props; GstPropsEntry *entry; if (siddec->tune->getInfo (info)) { props = gst_props_empty_new (); if (info.nameString) { entry = gst_props_entry_new ("Title", G_TYPE_STRING (info.nameString)); gst_props_add_entry (props, entry); } if (info.authorString) { entry = gst_props_entry_new ("Composer", G_TYPE_STRING (info.authorString)); gst_props_add_entry (props, entry); } if (info.copyrightString) { entry = gst_props_entry_new ("Copyright", G_TYPE_STRING (info.copyrightString)); gst_props_add_entry (props, entry); } siddec->metadata = gst_caps_new ("sid_metadata", "application/x-gst-metadata", props); g_object_notify (G_OBJECT (siddec), "metadata"); } } #endif #define GET_FIXED_INT(caps, name, dest) \ G_STMT_START { \ if (gst_caps_has_fixed_property (caps, name)) \ gst_structure_get_int (structure, name, (gint*)dest); \ } G_STMT_END #define GET_FIXED_BOOLEAN(caps, name, dest) \ G_STMT_START { \ if (gst_caps_has_fixed_property (caps, name)) \ gst_structure_get_boolean (structure, name, dest); \ } G_STMT_END static gboolean siddec_negotiate (GstSidDec * siddec) { GstCaps *allowed; gboolean sign = TRUE; gint width = 16, depth = 16; GstStructure *structure; int rate = 22050; int channels = 2; allowed = gst_pad_get_allowed_caps (siddec->srcpad); if (!allowed) return FALSE; structure = gst_caps_get_structure (allowed, 0); gst_structure_get_int (structure, "width", &width); gst_structure_get_int (structure, "depth", &depth); if (width && depth && width != depth) { return FALSE; } width = width | depth; if (width) { siddec->config->bitsPerSample = width; } gst_structure_get_boolean (structure, "signed", &sign); gst_structure_get_int (structure, "rate", &rate); siddec->config->frequency = rate; gst_structure_get_int (structure, "channels", &channels); siddec->config->channels = channels; siddec->config->sampleFormat = (sign ? SIDEMU_SIGNED_PCM : SIDEMU_UNSIGNED_PCM); gst_pad_set_caps (siddec->srcpad, gst_caps_new_simple ("audio/x-raw-int", "endianness", G_TYPE_INT, G_BYTE_ORDER, "signed", G_TYPE_BOOLEAN, sign, "width", G_TYPE_INT, siddec->config->bitsPerSample, "depth", G_TYPE_INT, siddec->config->bitsPerSample, "rate", G_TYPE_INT, siddec->config->frequency, "channels", G_TYPE_INT, siddec->config->channels, NULL)); siddec->engine->setConfig (*siddec->config); return TRUE; } static void play_loop (GstPad * pad) { GstFlowReturn ret; GstSidDec *siddec; GstBuffer *out; gint64 value, offset, time; GstFormat format; siddec = GST_SIDDEC (GST_PAD_PARENT (pad)); out = gst_buffer_new_and_alloc (siddec->blocksize); gst_buffer_set_caps (out, GST_PAD_CAPS (pad)); sidEmuFillBuffer (*siddec->engine, *siddec->tune, GST_BUFFER_DATA (out), GST_BUFFER_SIZE (out)); /* get offset in samples */ format = GST_FORMAT_DEFAULT; gst_siddec_src_convert (siddec->srcpad, GST_FORMAT_BYTES, siddec->total_bytes, &format, &offset); GST_BUFFER_OFFSET (out) = offset; /* get current timestamp */ gst_siddec_src_convert (siddec->srcpad, GST_FORMAT_BYTES, siddec->total_bytes, &format, &time); GST_BUFFER_TIMESTAMP (out) = time; /* update position and get new timestamp to calculate duration */ siddec->total_bytes += siddec->blocksize; /* get offset in samples */ format = GST_FORMAT_DEFAULT; gst_siddec_src_convert (siddec->srcpad, GST_FORMAT_BYTES, siddec->total_bytes, &format, &value); GST_BUFFER_OFFSET_END (out) = value; format = GST_FORMAT_TIME; gst_siddec_src_convert (siddec->srcpad, GST_FORMAT_BYTES, siddec->total_bytes, &format, &value); GST_BUFFER_DURATION (out) = value - time; if ((ret = gst_pad_push (siddec->srcpad, out)) != GST_FLOW_OK) goto pause; return; pause: { gst_pad_pause_task (pad); } } static gboolean start_play_tune (GstSidDec * siddec) { gboolean res; if (!siddec->tune->load (siddec->tune_buffer, siddec->tune_len)) goto could_not_load; //update_metadata (siddec); if (!siddec_negotiate (siddec)) goto could_not_negotiate; if (!sidEmuInitializeSong (*siddec->engine, *siddec->tune, siddec->tune_number)) goto could_not_init; res = gst_pad_start_task (siddec->srcpad, (GstTaskFunction) play_loop, siddec->srcpad); return res; /* ERRORS */ could_not_load: { GST_ELEMENT_ERROR (siddec, LIBRARY, TOO_LAZY, (NULL), (NULL)); return FALSE; } could_not_negotiate: { GST_ELEMENT_ERROR (siddec, CORE, NEGOTIATION, (NULL), (NULL)); return FALSE; } could_not_init: { GST_ELEMENT_ERROR (siddec, LIBRARY, TOO_LAZY, (NULL), (NULL)); return FALSE; } } static gboolean gst_siddec_sink_event (GstPad * pad, GstEvent * event) { GstSidDec *siddec; gboolean res; siddec = GST_SIDDEC (GST_PAD_PARENT (pad)); switch (GST_EVENT_TYPE (event)) { case GST_EVENT_EOS: GST_STREAM_LOCK (pad); res = start_play_tune (siddec); GST_STREAM_UNLOCK (pad); break; case GST_EVENT_DISCONTINUOUS: res = FALSE; break; default: res = FALSE; break; } gst_event_unref (event); return res; } static GstFlowReturn gst_siddec_chain (GstPad * pad, GstBuffer * buffer) { GstSidDec *siddec; guint64 size; siddec = GST_SIDDEC (GST_PAD_PARENT (pad)); size = GST_BUFFER_SIZE (buffer); if (siddec->tune_len + size > maxSidtuneFileLen) goto overflow; memcpy (siddec->tune_buffer + siddec->tune_len, GST_BUFFER_DATA (buffer), size); siddec->tune_len += size; gst_buffer_unref (buffer); return GST_FLOW_OK; overflow: { return GST_FLOW_ERROR; } } static gboolean gst_siddec_src_convert (GstPad * pad, GstFormat src_format, gint64 src_value, GstFormat * dest_format, gint64 * dest_value) { gboolean res = TRUE; guint scale = 1; GstSidDec *siddec; gint bytes_per_sample; siddec = GST_SIDDEC (GST_PAD_PARENT (pad)); if (src_format == *dest_format) { *dest_value = src_value; return TRUE; } bytes_per_sample = (siddec->config->bitsPerSample >> 3) * siddec->config->channels; switch (src_format) { case GST_FORMAT_BYTES: switch (*dest_format) { case GST_FORMAT_DEFAULT: if (bytes_per_sample == 0) return FALSE; *dest_value = src_value / bytes_per_sample; break; case GST_FORMAT_TIME: { gint byterate = bytes_per_sample * siddec->config->frequency; if (byterate == 0) return FALSE; *dest_value = src_value * GST_SECOND / byterate; break; } default: res = FALSE; } break; case GST_FORMAT_DEFAULT: switch (*dest_format) { case GST_FORMAT_BYTES: *dest_value = src_value * bytes_per_sample; break; case GST_FORMAT_TIME: if (siddec->config->frequency == 0) return FALSE; *dest_value = src_value * GST_SECOND / siddec->config->frequency; break; default: res = FALSE; } break; case GST_FORMAT_TIME: switch (*dest_format) { case GST_FORMAT_BYTES: scale = bytes_per_sample; /* fallthrough */ case GST_FORMAT_DEFAULT: *dest_value = src_value * scale * siddec->config->frequency / GST_SECOND; break; default: res = FALSE; } break; default: res = FALSE; } return res; } static gboolean gst_siddec_src_query (GstPad * pad, GstQuery * query) { gboolean res = TRUE; GstSidDec *siddec; siddec = GST_SIDDEC (GST_PAD_PARENT (pad)); switch (GST_QUERY_TYPE (query)) { case GST_QUERY_POSITION: { GstFormat format; gint64 current; gst_query_parse_position (query, &format, NULL, NULL); /* we only know about our bytes, convert to requested format */ res &= gst_siddec_src_convert (pad, GST_FORMAT_BYTES, siddec->total_bytes, &format, ¤t); if (res) { gst_query_set_position (query, format, current, -1); } break; } default: res = FALSE; break; } return res; } static void gst_siddec_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstSidDec *siddec; /* it's not null if we got it, but it might not be ours */ g_return_if_fail (GST_IS_SIDDEC (object)); siddec = GST_SIDDEC (object); switch (prop_id) { case ARG_TUNE: siddec->tune_number = g_value_get_int (value); break; case ARG_CLOCK: siddec->config->clockSpeed = g_value_get_enum (value); break; case ARG_MEMORY: siddec->config->memoryMode = g_value_get_enum (value); break; case ARG_FILTER: siddec->config->emulateFilter = g_value_get_boolean (value); break; case ARG_MEASURED_VOLUME: siddec->config->measuredVolume = g_value_get_boolean (value); break; case ARG_MOS8580: siddec->config->mos8580 = g_value_get_boolean (value); break; case ARG_BLOCKSIZE: siddec->blocksize = g_value_get_ulong (value); break; case ARG_FORCE_SPEED: siddec->config->forceSongSpeed = g_value_get_boolean (value); break; default: /* G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); */ return; } siddec->engine->setConfig (*siddec->config); } static void gst_siddec_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstSidDec *siddec; /* it's not null if we got it, but it might not be ours */ g_return_if_fail (GST_IS_SIDDEC (object)); siddec = GST_SIDDEC (object); switch (prop_id) { case ARG_TUNE: g_value_set_int (value, siddec->tune_number); break; case ARG_CLOCK: g_value_set_enum (value, siddec->config->clockSpeed); break; case ARG_MEMORY: g_value_set_enum (value, siddec->config->memoryMode); break; case ARG_FILTER: g_value_set_boolean (value, siddec->config->emulateFilter); break; case ARG_MEASURED_VOLUME: g_value_set_boolean (value, siddec->config->measuredVolume); break; case ARG_MOS8580: g_value_set_boolean (value, siddec->config->mos8580); break; case ARG_FORCE_SPEED: g_value_set_boolean (value, siddec->config->forceSongSpeed); break; case ARG_BLOCKSIZE: g_value_set_ulong (value, siddec->blocksize); break; case ARG_METADATA: g_value_set_boxed (value, siddec->metadata); break; default: /* G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); */ break; } } static gboolean plugin_init (GstPlugin * plugin) { return gst_element_register (plugin, "siddec", GST_RANK_PRIMARY, GST_TYPE_SIDDEC); } GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, "siddec", "Uses libsid to decode .sid files", plugin_init, VERSION, "GPL", GST_PACKAGE, GST_ORIGIN)