/* GStreamer * Copyright (C) 2016 Iskratel d.o.o. * Author: Okrslar Ales * Copyright (C) 2016 Sebastian Dröge * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "gsttonegeneratesrc.h" #undef IT_DBG GST_DEBUG_CATEGORY_STATIC (tone_generate_src_debug); #define GST_CAT_DEFAULT tone_generate_src_debug #define DEFAULT_SAMPLES_PER_BUFFER 1024 #define DEFAULT_FREQ 0 #define DEFAULT_VOLUME 0 #define DEFAULT_ON_TIME 1000 #define DEFAULT_OFF_TIME 1000 #define DEFAULT_REPEAT FALSE enum { PROP_0, PROP_SAMPLES_PER_BUFFER, PROP_FREQ, PROP_VOLUME, PROP_FREQ2, PROP_VOLUME2, PROP_ON_TIME, PROP_OFF_TIME, PROP_ON_TIME2, PROP_OFF_TIME2, PROP_REPEAT, PROP_LAST }; static GstStaticPadTemplate gst_tone_generate_src_src_template = GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS ("audio/x-raw, " "format = (string) " GST_AUDIO_NE (S16) ", " "layout = (string) interleaved, " "rate = (int) 8000, " "channels = 1") ); #define gst_tone_generate_src_parent_class parent_class G_DEFINE_TYPE_WITH_CODE (GstToneGenerateSrc, gst_tone_generate_src, GST_TYPE_PUSH_SRC, GST_DEBUG_CATEGORY_INIT (tone_generate_src_debug, "tonegeneratesrc", 0, "Telephony Tone Test Source"); ); GST_ELEMENT_REGISTER_DEFINE (tonegeneratesrc, "tonegeneratesrc", GST_RANK_NONE, GST_TYPE_TONE_GENERATE_SRC); static void gst_tone_generate_src_finalize (GObject * object); static void gst_tone_generate_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_tone_generate_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static gboolean gst_tone_generate_src_start (GstBaseSrc * basesrc); static gboolean gst_tone_generate_src_stop (GstBaseSrc * basesrc); static GstFlowReturn gst_tone_generate_src_fill (GstPushSrc * basesrc, GstBuffer * buffer); static void gst_tone_generate_src_class_init (GstToneGenerateSrcClass * klass) { GObjectClass *gobject_class; GstElementClass *gstelement_class; GstBaseSrcClass *gstbasesrc_class; GstPushSrcClass *gstpushsrc_class; gobject_class = (GObjectClass *) klass; gstelement_class = (GstElementClass *) klass; gstbasesrc_class = (GstBaseSrcClass *) klass; gstpushsrc_class = (GstPushSrcClass *) klass; gobject_class->set_property = gst_tone_generate_src_set_property; gobject_class->get_property = gst_tone_generate_src_get_property; gobject_class->finalize = gst_tone_generate_src_finalize; g_object_class_install_property (gobject_class, PROP_SAMPLES_PER_BUFFER, g_param_spec_int ("samplesperbuffer", "Samples per buffer", "Number of samples in each outgoing buffer", 1, G_MAXINT, DEFAULT_SAMPLES_PER_BUFFER, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_FREQ, g_param_spec_int ("freq", "Frequency", "Frequency of test signal", 0, 20000, DEFAULT_FREQ, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_VOLUME, g_param_spec_int ("volume", "Volume", "Volume of first signal", -50, 0, DEFAULT_VOLUME, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_FREQ2, g_param_spec_int ("freq2", "Second Frequency", "Frequency of second telephony tone component", 0, 20000, DEFAULT_FREQ, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_VOLUME2, g_param_spec_int ("volume2", "Volume2", "Volume of second tone signal", -50, 0, DEFAULT_VOLUME, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_ON_TIME, g_param_spec_int ("on-time", "Signal ON time first period", "Time of the first period when the tone signal is present", 1, G_MAXINT, DEFAULT_ON_TIME, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_OFF_TIME, g_param_spec_int ("off-time", "Signal OFF time first period ", "Time of the first period when the tone signal is off", 0, G_MAXINT, DEFAULT_OFF_TIME, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_ON_TIME2, g_param_spec_int ("on-time2", "Signal ON time second period", "Time of the second period when the tone signal is present", 1, G_MAXINT, DEFAULT_ON_TIME, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_OFF_TIME2, g_param_spec_int ("off-time2", "Signal OFF time first period ", "Time of the second period when the tone signal is off", 0, G_MAXINT, DEFAULT_ON_TIME, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_REPEAT, g_param_spec_boolean ("repeat", "Repeat the specified tone period ", "Whether to repeat specified tone indefinitely", DEFAULT_REPEAT, G_PARAM_READWRITE)); gst_element_class_add_static_pad_template (gstelement_class, &gst_tone_generate_src_src_template); gst_element_class_set_static_metadata (gstelement_class, "Telephony Tone Generator source", "Source/Audio", "Creates telephony signals of given frequency, volume, cadence", "Iskratel "); gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_tone_generate_src_start); gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_tone_generate_src_stop); gstpushsrc_class->fill = GST_DEBUG_FUNCPTR (gst_tone_generate_src_fill); } static void gst_tone_generate_src_init (GstToneGenerateSrc * src) { src->volume = DEFAULT_VOLUME; src->freq = DEFAULT_FREQ; src->on_time = DEFAULT_ON_TIME; src->off_time = DEFAULT_OFF_TIME; src->volume2 = DEFAULT_VOLUME; src->freq2 = DEFAULT_FREQ; src->on_time2 = DEFAULT_ON_TIME; src->off_time2 = DEFAULT_OFF_TIME; src->repeat = DEFAULT_REPEAT; gst_base_src_set_format (GST_BASE_SRC (src), GST_FORMAT_TIME); src->samples_per_buffer = DEFAULT_SAMPLES_PER_BUFFER; gst_base_src_set_blocksize (GST_BASE_SRC (src), 2 * src->samples_per_buffer); } static void gst_tone_generate_src_finalize (GObject * object) { GstToneGenerateSrc *src = GST_TONE_GENERATE_SRC (object); if (src->tone_desc) { tone_gen_descriptor_free (src->tone_desc); src->tone_desc = NULL; } if (src->tone_state) { tone_gen_free (src->tone_state); src->tone_state = NULL; } G_OBJECT_CLASS (parent_class)->finalize (object); } static gboolean gst_tone_generate_src_start (GstBaseSrc * basesrc) { GstToneGenerateSrc *src = GST_TONE_GENERATE_SRC (basesrc); GST_OBJECT_LOCK (src); src->properties_changed = FALSE; GST_OBJECT_UNLOCK (src); src->next_sample = 0; src->next_time = 0; return TRUE; } static gboolean gst_tone_generate_src_stop (GstBaseSrc * basesrc) { GstToneGenerateSrc *src = GST_TONE_GENERATE_SRC (basesrc); GST_OBJECT_LOCK (src); if (src->tone_desc) { tone_gen_descriptor_free (src->tone_desc); src->tone_desc = NULL; } if (src->tone_state) { tone_gen_free (src->tone_state); src->tone_state = NULL; } src->properties_changed = FALSE; GST_OBJECT_UNLOCK (src); return TRUE; } static GstFlowReturn gst_tone_generate_src_fill (GstPushSrc * basesrc, GstBuffer * buffer) { GstToneGenerateSrc *src; GstClockTime next_time; gint64 next_sample; gint bytes, samples; GstMapInfo map; const gint samplerate = 8000, bpf = 2; src = GST_TONE_GENERATE_SRC (basesrc); bytes = gst_buffer_get_size (buffer); samples = bytes / bpf; /* calculate full buffer */ next_sample = src->next_sample + samples; next_time = gst_util_uint64_scale_int (next_sample, GST_SECOND, samplerate); GST_LOG_OBJECT (src, "samplerate %d", samplerate); GST_LOG_OBJECT (src, "next_sample %" G_GINT64_FORMAT ", ts %" GST_TIME_FORMAT, next_sample, GST_TIME_ARGS (next_time)); GST_BUFFER_OFFSET (buffer) = src->next_sample; GST_BUFFER_OFFSET_END (buffer) = next_sample; GST_BUFFER_TIMESTAMP (buffer) = src->next_time; GST_BUFFER_DURATION (buffer) = next_time - src->next_time; gst_object_sync_values (GST_OBJECT (src), GST_BUFFER_TIMESTAMP (buffer)); src->next_time = next_time; src->next_sample = next_sample; GST_LOG_OBJECT (src, "generating %u samples at ts %" GST_TIME_FORMAT, samples, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer))); gst_buffer_map (buffer, &map, GST_MAP_WRITE); GST_OBJECT_LOCK (src); if (!src->tone_state || src->properties_changed) { src->tone_desc = tone_gen_descriptor_init (src->tone_desc, src->freq, src->volume, src->freq2, src->volume2, src->on_time, src->off_time, src->on_time2, src->off_time2, src->repeat); src->tone_state = tone_gen_init (src->tone_state, src->tone_desc); src->properties_changed = FALSE; } tone_gen (src->tone_state, (int16_t *) map.data, samples); GST_OBJECT_UNLOCK (src); gst_buffer_unmap (buffer, &map); return GST_FLOW_OK; } static void gst_tone_generate_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstToneGenerateSrc *src = GST_TONE_GENERATE_SRC (object); switch (prop_id) { case PROP_SAMPLES_PER_BUFFER: src->samples_per_buffer = g_value_get_int (value); gst_base_src_set_blocksize (GST_BASE_SRC_CAST (src), 2 * src->samples_per_buffer); break; case PROP_FREQ: GST_OBJECT_LOCK (src); src->freq = g_value_get_int (value); src->properties_changed = TRUE; GST_OBJECT_UNLOCK (src); break; case PROP_VOLUME: GST_OBJECT_LOCK (src); src->volume = g_value_get_int (value); src->properties_changed = TRUE; GST_OBJECT_UNLOCK (src); break; case PROP_FREQ2: GST_OBJECT_LOCK (src); src->freq2 = g_value_get_int (value); src->properties_changed = TRUE; GST_OBJECT_UNLOCK (src); break; case PROP_VOLUME2: GST_OBJECT_LOCK (src); src->volume2 = g_value_get_int (value); src->properties_changed = TRUE; GST_OBJECT_UNLOCK (src); break; case PROP_ON_TIME: GST_OBJECT_LOCK (src); src->on_time = g_value_get_int (value); src->properties_changed = TRUE; GST_OBJECT_UNLOCK (src); break; case PROP_ON_TIME2: GST_OBJECT_LOCK (src); src->on_time2 = g_value_get_int (value); src->properties_changed = TRUE; GST_OBJECT_UNLOCK (src); break; case PROP_OFF_TIME: GST_OBJECT_LOCK (src); src->off_time = g_value_get_int (value); src->properties_changed = TRUE; GST_OBJECT_UNLOCK (src); break; case PROP_OFF_TIME2: GST_OBJECT_LOCK (src); src->off_time2 = g_value_get_int (value); src->properties_changed = TRUE; GST_OBJECT_UNLOCK (src); break; case PROP_REPEAT: GST_OBJECT_LOCK (src); src->repeat = g_value_get_boolean (value); src->properties_changed = TRUE; GST_OBJECT_UNLOCK (src); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_tone_generate_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstToneGenerateSrc *src = GST_TONE_GENERATE_SRC (object); switch (prop_id) { case PROP_SAMPLES_PER_BUFFER: g_value_set_int (value, src->samples_per_buffer); break; case PROP_FREQ: g_value_set_int (value, src->freq); break; case PROP_VOLUME: g_value_set_int (value, src->volume); break; case PROP_FREQ2: g_value_set_int (value, src->freq2); break; case PROP_VOLUME2: g_value_set_int (value, src->volume2); break; case PROP_ON_TIME: g_value_set_int (value, src->on_time); break; case PROP_OFF_TIME: g_value_set_int (value, src->off_time); break; case PROP_ON_TIME2: g_value_set_int (value, src->on_time2); break; case PROP_OFF_TIME2: g_value_set_int (value, src->off_time2); break; case PROP_REPEAT: g_value_set_boolean (value, src->repeat); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } }