| /* GStreamer |
| * Copyright (C) 2016 Iskratel d.o.o. |
| * Author: Okrslar Ales <okrslar@iskratel.si> |
| * Copyright (C) 2016 Sebastian Dröge <sebastian@centricular.com> |
| * |
| * 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 (GstToneGenerateSrc, gst_tone_generate_src, GST_TYPE_PUSH_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 indefinitly", DEFAULT_REPEAT, |
| G_PARAM_READWRITE)); |
| |
| gst_element_class_add_pad_template (gstelement_class, |
| gst_static_pad_template_get (&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 <www.iskratel.com>"); |
| |
| 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; |
| } |
| } |
| |
| gboolean |
| gst_tone_generate_src_plugin_init (GstPlugin * plugin) |
| { |
| GST_DEBUG_CATEGORY_INIT (tone_generate_src_debug, "tonegeneratesrc", 0, |
| "Telephony Tone Test Source"); |
| |
| return gst_element_register (plugin, "tonegeneratesrc", |
| GST_RANK_NONE, GST_TYPE_TONE_GENERATE_SRC); |
| } |