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; } }