static void
gst_audio_echo_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstAudioEcho *self = GST_AUDIO_ECHO (object);
switch (prop_id) {
case PROP_DELAY:
GST_BASE_TRANSFORM_LOCK (self);
g_value_set_uint64 (value, self->delay);
GST_BASE_TRANSFORM_UNLOCK (self);
break;
case PROP_MAX_DELAY:
GST_BASE_TRANSFORM_LOCK (self);
g_value_set_uint64 (value, self->max_delay);
GST_BASE_TRANSFORM_UNLOCK (self);
break;
case PROP_INTENSITY:
GST_BASE_TRANSFORM_LOCK (self);
g_value_set_float (value, self->intensity);
GST_BASE_TRANSFORM_UNLOCK (self);
break;
case PROP_FEEDBACK:
GST_BASE_TRANSFORM_LOCK (self);
g_value_set_float (value, self->feedback);
GST_BASE_TRANSFORM_UNLOCK (self);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_audio_echo_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstAudioEcho *self = GST_AUDIO_ECHO (object);
switch (prop_id) {
case PROP_DELAY:{
guint64 max_delay, delay;
GST_BASE_TRANSFORM_LOCK (self);
delay = g_value_get_uint64 (value);
max_delay = self->max_delay;
if (delay > max_delay && GST_STATE (self) > GST_STATE_READY) {
GST_WARNING_OBJECT (self, "New delay (%" GST_TIME_FORMAT ") "
"is larger than maximum delay (%" GST_TIME_FORMAT ")",
GST_TIME_ARGS (delay), GST_TIME_ARGS (max_delay));
self->delay = max_delay;
} else {
self->delay = delay;
self->max_delay = MAX (delay, max_delay);
}
GST_BASE_TRANSFORM_UNLOCK (self);
}
break;
case PROP_MAX_DELAY:{
guint64 max_delay, delay;
GST_BASE_TRANSFORM_LOCK (self);
max_delay = g_value_get_uint64 (value);
delay = self->delay;
if (GST_STATE (self) > GST_STATE_READY) {
GST_ERROR_OBJECT (self, "Can't change maximum delay in"
" PLAYING or PAUSED state");
} else {
self->delay = delay;
self->max_delay = max_delay;
}
GST_BASE_TRANSFORM_UNLOCK (self);
}
break;
case PROP_INTENSITY:{
GST_BASE_TRANSFORM_LOCK (self);
self->intensity = g_value_get_float (value);
GST_BASE_TRANSFORM_UNLOCK (self);
}
break;
case PROP_FEEDBACK:{
GST_BASE_TRANSFORM_LOCK (self);
self->feedback = g_value_get_float (value);
GST_BASE_TRANSFORM_UNLOCK (self);
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_audio_echo_setup (GstAudioFilter * base, const GstAudioInfo * info)
{
GstAudioEcho *self = GST_AUDIO_ECHO (base);
gboolean ret = TRUE;
switch (GST_AUDIO_INFO_FORMAT (info)) {
case GST_AUDIO_FORMAT_F32:
self->process = (GstAudioEchoProcessFunc)
gst_audio_echo_transform_float;
break;
case GST_AUDIO_FORMAT_F64:
self->process = (GstAudioEchoProcessFunc)
gst_audio_echo_transform_double;
break;
default:
ret = FALSE;
break;
}
g_free (self->buffer);
self->buffer = NULL;
self->buffer_pos = 0;
self->buffer_size = 0;
self->buffer_size_frames = 0;
return ret;
}
static void
gst_audio_echo_finalize (GObject * object)
{
GstAudioEcho *self = GST_AUDIO_ECHO (object);
g_free (self->buffer);
self->buffer = NULL;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gboolean
gst_audio_echo_stop (GstBaseTransform * base)
{
GstAudioEcho *self = GST_AUDIO_ECHO (base);
g_free (self->buffer);
self->buffer = NULL;
self->buffer_pos = 0;
self->buffer_size = 0;
self->buffer_size_frames = 0;
return TRUE;
}
/* GstBaseTransform vmethod implementations */
static GstFlowReturn
gst_audio_echo_transform_ip (GstBaseTransform * base, GstBuffer * buf)
{
GstAudioEcho *self = GST_AUDIO_ECHO (base);
guint num_samples;
GstClockTime timestamp, stream_time;
GstMapInfo map;
g_mutex_lock (&self->lock);
timestamp = GST_BUFFER_TIMESTAMP (buf);
stream_time =
gst_segment_to_stream_time (&base->segment, GST_FORMAT_TIME, timestamp);
GST_DEBUG_OBJECT (self, "sync to %" GST_TIME_FORMAT,
GST_TIME_ARGS (timestamp));
if (GST_CLOCK_TIME_IS_VALID (stream_time))
gst_object_sync_values (GST_OBJECT (self), stream_time);
if (self->buffer == NULL) {
guint bpf, rate;
bpf = GST_AUDIO_FILTER_BPF (self);
rate = GST_AUDIO_FILTER_RATE (self);
self->delay_frames =
MAX (gst_util_uint64_scale (self->delay, rate, GST_SECOND), 1);
self->buffer_size_frames =
MAX (gst_util_uint64_scale (self->max_delay, rate, GST_SECOND), 1);
self->buffer_size = self->buffer_size_frames * bpf;
self->buffer = g_try_malloc0 (self->buffer_size);
self->buffer_pos = 0;
if (self->buffer == NULL) {
g_mutex_unlock (&self->lock);
GST_ERROR_OBJECT (self, "Failed to allocate %u bytes", self->buffer_size);
return GST_FLOW_ERROR;
}
}
gst_buffer_map (buf, &map, GST_MAP_READWRITE);
num_samples = map.size / GST_AUDIO_FILTER_BPS (self);
self->process (self, map.data, num_samples);
gst_buffer_unmap (buf, &map);
g_mutex_unlock (&self->lock);
return GST_FLOW_OK;
}
/* GstBaseTransform vmethod implementations */
static GstFlowReturn
gst_audio_echo_transform_ip (GstBaseTransform * base, GstBuffer * buf)
{
GstAudioEcho *self = GST_AUDIO_ECHO (base);
guint num_samples;
GstClockTime timestamp, stream_time;
timestamp = GST_BUFFER_TIMESTAMP (buf);
stream_time =
gst_segment_to_stream_time (&base->segment, GST_FORMAT_TIME, timestamp);
GST_DEBUG_OBJECT (self, "sync to %" GST_TIME_FORMAT,
GST_TIME_ARGS (timestamp));
if (GST_CLOCK_TIME_IS_VALID (stream_time))
gst_object_sync_values (G_OBJECT (self), stream_time);
num_samples =
GST_BUFFER_SIZE (buf) / (GST_AUDIO_FILTER (self)->format.width / 8);
if (self->buffer == NULL) {
guint width, rate, channels;
width = GST_AUDIO_FILTER (self)->format.width / 8;
rate = GST_AUDIO_FILTER (self)->format.rate;
channels = GST_AUDIO_FILTER (self)->format.channels;
self->delay_frames =
MAX (gst_util_uint64_scale (self->delay, rate, GST_SECOND), 1);
self->buffer_size_frames =
MAX (gst_util_uint64_scale (self->max_delay, rate, GST_SECOND), 1);
self->buffer_size = self->buffer_size_frames * width * channels;
self->buffer = g_try_malloc0 (self->buffer_size);
self->buffer_pos = 0;
if (self->buffer == NULL) {
GST_ERROR_OBJECT (self, "Failed to allocate %u bytes", self->buffer_size);
return GST_FLOW_ERROR;
}
}
self->process (self, GST_BUFFER_DATA (buf), num_samples);
return GST_FLOW_OK;
}
static gboolean
gst_audio_echo_setup (GstAudioFilter * base, GstRingBufferSpec * format)
{
GstAudioEcho *self = GST_AUDIO_ECHO (base);
gboolean ret = TRUE;
if (format->type == GST_BUFTYPE_FLOAT && format->width == 32)
self->process = (GstAudioEchoProcessFunc)
gst_audio_echo_transform_float;
else if (format->type == GST_BUFTYPE_FLOAT && format->width == 64)
self->process = (GstAudioEchoProcessFunc)
gst_audio_echo_transform_double;
else
ret = FALSE;
g_free (self->buffer);
self->buffer = NULL;
self->buffer_pos = 0;
self->buffer_size = 0;
self->buffer_size_frames = 0;
return ret;
}
static void
gst_audio_echo_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstAudioEcho *self = GST_AUDIO_ECHO (object);
switch (prop_id) {
case PROP_DELAY:{
guint64 max_delay, delay;
guint rate;
g_mutex_lock (&self->lock);
delay = g_value_get_uint64 (value);
max_delay = self->max_delay;
if (delay > max_delay && GST_STATE (self) > GST_STATE_READY) {
GST_WARNING_OBJECT (self, "New delay (%" GST_TIME_FORMAT ") "
"is larger than maximum delay (%" GST_TIME_FORMAT ")",
GST_TIME_ARGS (delay), GST_TIME_ARGS (max_delay));
self->delay = max_delay;
} else {
self->delay = delay;
self->max_delay = MAX (delay, max_delay);
if (delay > max_delay) {
g_free (self->buffer);
self->buffer = NULL;
}
}
rate = GST_AUDIO_FILTER_RATE (self);
if (rate > 0)
self->delay_frames =
MAX (gst_util_uint64_scale (self->delay, rate, GST_SECOND), 1);
g_mutex_unlock (&self->lock);
break;
}
case PROP_MAX_DELAY:{
guint64 max_delay;
g_mutex_lock (&self->lock);
max_delay = g_value_get_uint64 (value);
if (GST_STATE (self) > GST_STATE_READY) {
GST_ERROR_OBJECT (self, "Can't change maximum delay in"
" PLAYING or PAUSED state");
} else {
self->max_delay = max_delay;
g_free (self->buffer);
self->buffer = NULL;
}
g_mutex_unlock (&self->lock);
break;
}
case PROP_INTENSITY:{
g_mutex_lock (&self->lock);
self->intensity = g_value_get_float (value);
g_mutex_unlock (&self->lock);
break;
}
case PROP_FEEDBACK:{
g_mutex_lock (&self->lock);
self->feedback = g_value_get_float (value);
g_mutex_unlock (&self->lock);
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
