mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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537 lines
16 KiB
C++
537 lines
16 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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <string.h>
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#include "gstsiddec.h"
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/* elementfactory information */
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static GstElementDetails gst_siddec_details = {
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"Sid decoder",
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"Filter/Decoder/Audio",
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"Use sidplay to decode SID audio tunes",
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VERSION,
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"Wim Taymans <wim.taymans@chello.be> ",
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"(C) 2001",
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};
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static GstCaps* sid_typefind (GstBuffer *buf, gpointer priv);
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/* typefactory for 'sid' */
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static GstTypeDefinition siddefinition = {
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"siddec_audio/sid",
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"audio/sid",
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".sid",
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sid_typefind,
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};
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/* Sidec signals and args */
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enum {
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/* FILL ME */
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LAST_SIGNAL
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};
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enum {
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ARG_0,
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ARG_DEPTH,
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ARG_CHANNELS,
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ARG_FREQUENCY,
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ARG_TUNE,
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ARG_CLOCK,
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ARG_MEMORY,
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ARG_FILTER,
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ARG_MEASURED_VOLUME,
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ARG_MOS8580,
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ARG_FORCE_SPEED,
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/* FILL ME */
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};
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GST_PADTEMPLATE_FACTORY (sink_templ,
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"sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_CAPS_NEW (
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"siddecoder_sink",
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"audio/sid",
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NULL
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)
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)
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GST_PADTEMPLATE_FACTORY (src_templ,
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"src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_CAPS_NEW (
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"src_audio",
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"audio/raw",
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"format", GST_PROPS_STRING ("int"),
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"law", GST_PROPS_INT (0),
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"endianness", GST_PROPS_INT (G_BYTE_ORDER),
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"signed", GST_PROPS_LIST (
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GST_PROPS_BOOLEAN (TRUE),
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GST_PROPS_BOOLEAN (FALSE)
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),
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"width", GST_PROPS_LIST (
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GST_PROPS_INT (8),
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GST_PROPS_INT (16)
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),
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"depth", GST_PROPS_LIST (
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GST_PROPS_INT (8),
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GST_PROPS_INT (16)
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),
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"rate", GST_PROPS_INT_RANGE (8000, 48000),
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"channels", GST_PROPS_INT_RANGE (1, 2)
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)
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)
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enum {
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SID_STATE_NEED_TUNE = 1,
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SID_STATE_LOAD_TUNE = 2,
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SID_STATE_PLAY_TUNE = 3,
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};
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#define GST_TYPE_SID_DEPTH (gst_sid_depth_get_type())
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static GType
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gst_sid_depth_get_type (void)
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{
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static GType sid_depth_type = 0;
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static GEnumValue sid_depth[] = {
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{ SIDEMU_8BIT, "8", "8 bit" },
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{ SIDEMU_16BIT, "16", "16 bit" },
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{ 0, NULL, NULL },
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};
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if (!sid_depth_type) {
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sid_depth_type = g_enum_register_static ("GstSidDepth", sid_depth);
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}
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return sid_depth_type;
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}
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#define GST_TYPE_SID_CHANNELS (gst_sid_channels_get_type())
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static GType
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gst_sid_channels_get_type (void)
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{
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static GType sid_channels_type = 0;
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static GEnumValue sid_channels[] = {
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{ SIDEMU_MONO, "1", "Mono" },
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{ SIDEMU_STEREO, "2", "Stereo" },
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{ 0, NULL, NULL },
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};
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if (!sid_channels_type) {
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sid_channels_type = g_enum_register_static ("GstSidChannels", sid_channels);
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}
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return sid_channels_type;
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}
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#define GST_TYPE_SID_FREQUENCY (gst_sid_frequency_get_type())
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static GType
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gst_sid_frequency_get_type (void)
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{
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static GType sid_frequency_type = 0;
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static GEnumValue sid_frequency[] = {
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{ 8000, "8000", "8000 Hz" },
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{ 11025, "11025", "11025 Hz" },
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{ 16500, "16500", "16500 Hz" },
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{ 22050, "22050", "22050 Hz" },
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{ 27500, "27500", "27500 Hz" },
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{ 32000, "32000", "32000 Hz" },
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{ 37500, "37500", "37500 Hz" },
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{ 44100, "44100", "44100 Hz" },
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{ 48000, "48000", "48000 Hz" },
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{ 0, NULL, NULL },
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};
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if (!sid_frequency_type) {
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sid_frequency_type = g_enum_register_static ("GstSidFrequency", sid_frequency);
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}
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return sid_frequency_type;
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}
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#define GST_TYPE_SID_CLOCK (gst_sid_clock_get_type())
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static GType
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gst_sid_clock_get_type (void)
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{
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static GType sid_clock_type = 0;
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static GEnumValue sid_clock[] = {
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{ SIDTUNE_CLOCK_PAL, "0", "PAL" },
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{ SIDTUNE_CLOCK_NTSC, "1", "NTSC" },
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{ 0, NULL, NULL },
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};
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if (!sid_clock_type) {
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sid_clock_type = g_enum_register_static ("GstSidClock", sid_clock);
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}
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return sid_clock_type;
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}
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#define GST_TYPE_SID_MEMORY (gst_sid_memory_get_type())
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static GType
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gst_sid_memory_get_type (void)
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{
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static GType sid_memory_type = 0;
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static GEnumValue sid_memory[] = {
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{ MPU_BANK_SWITCHING, "32", "Bank Switching" },
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{ MPU_TRANSPARENT_ROM, "33", "Transparent ROM" },
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{ MPU_PLAYSID_ENVIRONMENT, "34", "Playsid Environment" },
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{ 0, NULL, NULL },
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};
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if (!sid_memory_type) {
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sid_memory_type = g_enum_register_static ("GstSidMemory", sid_memory);
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}
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return sid_memory_type;
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}
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static void gst_siddec_class_init (GstSidDec *klass);
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static void gst_siddec_init (GstSidDec *siddec);
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static void gst_siddec_loop (GstElement *element);
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static void gst_siddec_get_property (GObject *object, guint prop_id,
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GValue *value, GParamSpec *pspec);
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static void gst_siddec_set_property (GObject *object, guint prop_id,
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const GValue *value, GParamSpec *pspec);
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static GstElementClass *parent_class = NULL;
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//static guint gst_siddec_signals[LAST_SIGNAL] = { 0 };
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GType
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gst_siddec_get_type (void)
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{
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static GType siddec_type = 0;
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if (!siddec_type) {
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static const GTypeInfo siddec_info = {
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sizeof(GstSidDecClass),
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NULL,
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NULL,
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(GClassInitFunc) gst_siddec_class_init,
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NULL,
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NULL,
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sizeof(GstSidDec),
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0,
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(GInstanceInitFunc) gst_siddec_init,
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NULL
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};
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siddec_type = g_type_register_static (GST_TYPE_ELEMENT, "GstSidDec", &siddec_info, (GTypeFlags)0);
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}
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return siddec_type;
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}
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static GstCaps*
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sid_typefind (GstBuffer *buf, gpointer priv)
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{
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guchar *data = GST_BUFFER_DATA (buf);
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GstCaps *newcaps;
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GST_DEBUG (0,"sid_demux: typefind\n");
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if (strncmp ((const char *)data, "PSID", 4))
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return NULL;
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newcaps = gst_caps_new ("sid_typefind","audio/sid", NULL);
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return newcaps;
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}
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static void
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gst_siddec_class_init (GstSidDec *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 = GST_ELEMENT_CLASS (g_type_class_ref (GST_TYPE_ELEMENT));
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEPTH,
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g_param_spec_enum ("depth", "depth", "depth",
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GST_TYPE_SID_DEPTH, SIDEMU_16BIT, (GParamFlags)G_PARAM_READWRITE));
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_CHANNELS,
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g_param_spec_enum ("channels", "channels", "channels",
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GST_TYPE_SID_CHANNELS, SIDEMU_STEREO, (GParamFlags)G_PARAM_READWRITE));
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FREQUENCY,
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g_param_spec_enum ("frequency", "frequency", "frequency",
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GST_TYPE_SID_FREQUENCY, 44100, (GParamFlags)G_PARAM_READWRITE));
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_TUNE,
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g_param_spec_int ("tune", "tune", "tune",
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1, 100, 1, (GParamFlags)G_PARAM_READWRITE));
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_CLOCK,
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g_param_spec_enum ("clock", "clock", "clock",
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GST_TYPE_SID_CLOCK, SIDTUNE_CLOCK_PAL, (GParamFlags)G_PARAM_READWRITE));
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_MEMORY,
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g_param_spec_enum ("memory", "memory", "memory",
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GST_TYPE_SID_MEMORY, MPU_PLAYSID_ENVIRONMENT, (GParamFlags)G_PARAM_READWRITE));
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FILTER,
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g_param_spec_boolean ("filter", "filter", "filter",
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TRUE, (GParamFlags)G_PARAM_READWRITE));
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_MEASURED_VOLUME,
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g_param_spec_boolean ("measured_volume", "measured_volume", "measured_volume",
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TRUE, (GParamFlags)G_PARAM_READWRITE));
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_MOS8580,
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g_param_spec_boolean ("mos8580", "mos8580", "mos8580",
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TRUE, (GParamFlags)G_PARAM_READWRITE));
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FORCE_SPEED,
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g_param_spec_boolean ("force_speed", "force_speed", "force_speed",
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TRUE, (GParamFlags)G_PARAM_READWRITE));
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gobject_class->set_property = gst_siddec_set_property;
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gobject_class->get_property = gst_siddec_get_property;
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}
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static void
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gst_siddec_init (GstSidDec *siddec)
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{
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siddec->sinkpad = gst_pad_new_from_template (
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GST_PADTEMPLATE_GET (sink_templ), "sink");
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gst_element_add_pad (GST_ELEMENT (siddec), siddec->sinkpad);
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siddec->srcpad = gst_pad_new_from_template (
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GST_PADTEMPLATE_GET (src_templ), "src");
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gst_element_add_pad (GST_ELEMENT (siddec), siddec->srcpad);
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gst_element_set_loop_function (GST_ELEMENT (siddec), gst_siddec_loop);
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siddec->engine = new emuEngine();
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siddec->tune = new sidTune(0);
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siddec->config = (emuConfig *)g_malloc (sizeof (emuConfig));
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siddec->config->frequency = 44100; // frequency
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siddec->config->bitsPerSample = SIDEMU_16BIT; // bits per sample
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siddec->config->sampleFormat = SIDEMU_SIGNED_PCM; // sample fomat
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siddec->config->channels = SIDEMU_STEREO; // channels
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siddec->config->sidChips = 0; // -
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siddec->config->volumeControl = SIDEMU_NONE; // volume control
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siddec->config->mos8580 = TRUE; // mos8580
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siddec->config->measuredVolume = TRUE; // measure volume
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siddec->config->emulateFilter = TRUE; // emulate filter
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siddec->config->filterFs = SIDEMU_DEFAULTFILTERFS; // filter Fs
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siddec->config->filterFm = SIDEMU_DEFAULTFILTERFM; // filter Fm
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siddec->config->filterFt = SIDEMU_DEFAULTFILTERFT; // filter Ft
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siddec->config->memoryMode = MPU_PLAYSID_ENVIRONMENT; // memory mode
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siddec->config->clockSpeed = SIDTUNE_CLOCK_PAL; // clock speed
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siddec->config->forceSongSpeed = TRUE; // force song speed
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siddec->config->digiPlayerScans = 0; // digi player scans
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siddec->config->autoPanning = SIDEMU_NONE; // auto panning
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siddec->engine->setConfig (*siddec->config);
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siddec->engine->setDefaultFilterStrength ();
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siddec->state = SID_STATE_NEED_TUNE;
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siddec->tune_buffer = (guchar *) g_malloc (maxSidtuneFileLen);
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siddec->tune_len = 0;
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siddec->tune_number = 1;
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}
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static void
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gst_siddec_loop (GstElement *element)
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{
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GstSidDec *siddec;
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siddec = GST_SIDDEC (element);
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if (siddec->state == SID_STATE_NEED_TUNE) {
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GstBuffer *buf = gst_pad_pull (siddec->sinkpad);
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g_assert (buf != NULL);
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if (GST_IS_EVENT (buf)) {
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switch (GST_EVENT_TYPE (buf)) {
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case GST_EVENT_EOS:
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siddec->state = SID_STATE_LOAD_TUNE;
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break;
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default:
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// bail out, we're not going to do anything
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gst_element_set_eos (element);
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gst_pad_send_event (siddec->srcpad, gst_event_new (GST_EVENT_EOS));
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break;
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}
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}
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else {
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memcpy (siddec->tune_buffer+siddec->tune_len, GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
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siddec->tune_len += GST_BUFFER_SIZE (buf);
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gst_buffer_unref (buf);
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}
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}
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if (siddec->state == SID_STATE_LOAD_TUNE) {
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if (siddec->tune->load (siddec->tune_buffer, siddec->tune_len)) {
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if (sidEmuInitializeSong (*siddec->engine, *siddec->tune, siddec->tune_number)) {
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gst_pad_try_set_caps (siddec->srcpad,
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GST_CAPS_NEW (
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"siddec_src",
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"audio/raw",
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"format", GST_PROPS_STRING ("int"),
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"law", GST_PROPS_INT (0),
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"endianness", GST_PROPS_INT (G_BYTE_ORDER),
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"signed", GST_PROPS_BOOLEAN (siddec->config->bitsPerSample==8?FALSE:TRUE),
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"width", GST_PROPS_INT (siddec->config->bitsPerSample),
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"depth", GST_PROPS_INT (siddec->config->bitsPerSample),
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"rate", GST_PROPS_INT (siddec->config->frequency),
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"channels", GST_PROPS_INT (siddec->config->channels)
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));
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siddec->state = SID_STATE_PLAY_TUNE;
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}
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else {
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g_warning ("siddec: could not initialize song\n");
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}
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}
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else {
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g_warning ("siddec: could not load song\n");
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}
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}
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if (siddec->state == SID_STATE_PLAY_TUNE) {
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GstBuffer *out = gst_buffer_new ();
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GST_BUFFER_SIZE (out) = 4096;
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GST_BUFFER_DATA (out) = (guchar *)g_malloc (4096);
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sidEmuFillBuffer (*siddec->engine, *siddec->tune,
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GST_BUFFER_DATA (out), GST_BUFFER_SIZE (out));
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gst_pad_push (siddec->srcpad, out);
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}
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}
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static void
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gst_siddec_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
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{
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GstSidDec *siddec;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail(GST_IS_SIDDEC(object));
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siddec = GST_SIDDEC(object);
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switch(prop_id) {
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case ARG_DEPTH:
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siddec->config->bitsPerSample = g_value_get_enum (value);
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siddec->config->sampleFormat = (siddec->config->bitsPerSample==8?
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SIDEMU_UNSIGNED_PCM:
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SIDEMU_SIGNED_PCM);
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break;
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case ARG_CHANNELS:
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siddec->config->channels = g_value_get_enum (value);
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break;
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case ARG_FREQUENCY:
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siddec->config->frequency = g_value_get_enum (value);
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break;
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case ARG_TUNE:
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siddec->tune_number = g_value_get_int (value);
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break;
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case ARG_CLOCK:
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siddec->config->clockSpeed = g_value_get_enum (value);
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break;
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case ARG_MEMORY:
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siddec->config->memoryMode = g_value_get_enum (value);
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break;
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case ARG_FILTER:
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siddec->config->emulateFilter = g_value_get_boolean (value);
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break;
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case ARG_MEASURED_VOLUME:
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siddec->config->measuredVolume = g_value_get_boolean (value);
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break;
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case ARG_MOS8580:
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siddec->config->mos8580 = g_value_get_boolean (value);
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break;
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case ARG_FORCE_SPEED:
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siddec->config->forceSongSpeed = g_value_get_boolean (value);
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break;
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default:
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/* G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); */
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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_DEPTH:
|
|
g_value_set_enum (value, siddec->config->bitsPerSample);
|
|
break;
|
|
case ARG_CHANNELS:
|
|
g_value_set_enum (value, siddec->config->channels);
|
|
break;
|
|
case ARG_FREQUENCY:
|
|
g_value_set_enum (value, siddec->config->frequency);
|
|
break;
|
|
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;
|
|
default:
|
|
/* G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); */
|
|
break;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
plugin_init (GModule *module, GstPlugin *plugin)
|
|
{
|
|
GstElementFactory *factory;
|
|
GstTypeFactory *type;
|
|
|
|
/* create an elementfactory for the avi_demux element */
|
|
factory = gst_elementfactory_new ("siddec",GST_TYPE_SIDDEC,
|
|
&gst_siddec_details);
|
|
g_return_val_if_fail (factory != NULL, FALSE);
|
|
|
|
gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (src_templ));
|
|
gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (sink_templ));
|
|
|
|
type = gst_typefactory_new (&siddefinition);
|
|
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (type));
|
|
|
|
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
GstPluginDesc plugin_desc = {
|
|
GST_VERSION_MAJOR,
|
|
GST_VERSION_MINOR,
|
|
"siddec",
|
|
plugin_init
|
|
};
|
|
|