StreamStatusMessagePtr StreamStatusMessage::create(const ObjectPtr & source,
StreamStatusType type, const ElementPtr & owner)
{
GstMessage *m = gst_message_new_stream_status(source, static_cast<GstStreamStatusType>(type), owner);
return StreamStatusMessagePtr::wrap(m, false);
}
static gpointer
render_thread_func (GstEglGlesSink * eglglessink)
{
GstMessage *message;
GValue val = { 0 };
GstDataQueueItem *item = NULL;
GstFlowReturn last_flow = GST_FLOW_OK;
g_value_init (&val, G_TYPE_POINTER);
g_value_set_pointer (&val, g_thread_self ());
message = gst_message_new_stream_status (GST_OBJECT_CAST (eglglessink),
GST_STREAM_STATUS_TYPE_ENTER, GST_ELEMENT_CAST (eglglessink));
gst_message_set_stream_status_object (message, &val);
GST_DEBUG_OBJECT (eglglessink, "posting ENTER stream status");
gst_element_post_message (GST_ELEMENT_CAST (eglglessink), message);
g_value_unset (&val);
gst_egl_adaptation_bind_API (eglglessink->egl_context);
while (gst_data_queue_pop (eglglessink->queue, &item)) {
GstBuffer *buf = NULL;
GstMiniObject *object = item->object;
GST_DEBUG_OBJECT (eglglessink, "Handling object %" GST_PTR_FORMAT, object);
if (GST_IS_BUFFER (object)) {
GstCaps *caps;
buf = GST_BUFFER_CAST (item->object);
caps = GST_BUFFER_CAPS (buf);
if (caps != eglglessink->configured_caps) {
if (!gst_eglglessink_configure_caps (eglglessink, caps)) {
g_mutex_lock (eglglessink->render_lock);
eglglessink->last_flow = GST_FLOW_NOT_NEGOTIATED;
g_cond_broadcast (eglglessink->render_cond);
g_mutex_unlock (eglglessink->render_lock);
item->destroy (item);
break;
}
}
if (eglglessink->configured_caps) {
last_flow = gst_eglglessink_upload (eglglessink, buf);
if (last_flow == GST_FLOW_OK) {
last_flow = gst_eglglessink_render (eglglessink);
}
} else {
GST_DEBUG_OBJECT (eglglessink,
"No caps configured yet, not drawing anything");
}
} else if (!object) {
if (eglglessink->configured_caps) {
last_flow = gst_eglglessink_render (eglglessink);
} else {
last_flow = GST_FLOW_OK;
GST_DEBUG_OBJECT (eglglessink,
"No caps configured yet, not drawing anything");
}
} else {
g_assert_not_reached ();
}
item->destroy (item);
g_mutex_lock (eglglessink->render_lock);
eglglessink->last_flow = last_flow;
g_cond_broadcast (eglglessink->render_cond);
g_mutex_unlock (eglglessink->render_lock);
if (last_flow != GST_FLOW_OK)
break;
GST_DEBUG_OBJECT (eglglessink, "Successfully handled object");
}
if (last_flow == GST_FLOW_OK) {
g_mutex_lock (eglglessink->render_lock);
eglglessink->last_flow = GST_FLOW_WRONG_STATE;
g_cond_broadcast (eglglessink->render_cond);
g_mutex_unlock (eglglessink->render_lock);
}
GST_DEBUG_OBJECT (eglglessink, "Shutting down thread");
/* EGL/GLES cleanup */
gst_egl_adaptation_cleanup (eglglessink->egl_context);
if (eglglessink->configured_caps) {
gst_caps_unref (eglglessink->configured_caps);
eglglessink->configured_caps = NULL;
}
g_value_init (&val, G_TYPE_POINTER);
g_value_set_pointer (&val, g_thread_self ());
message = gst_message_new_stream_status (GST_OBJECT_CAST (eglglessink),
GST_STREAM_STATUS_TYPE_LEAVE, GST_ELEMENT_CAST (eglglessink));
gst_message_set_stream_status_object (message, &val);
GST_DEBUG_OBJECT (eglglessink, "posting LEAVE stream status");
gst_element_post_message (GST_ELEMENT_CAST (eglglessink), message);
g_value_unset (&val);
return NULL;
}
/* this internal thread does nothing else but read samples from the audio device.
* It will read each segment in the ringbuffer and will update the play
* pointer.
* The start/stop methods control the thread.
*/
static void
audioringbuffer_thread_func (GstRingBuffer * buf)
{
GstAudioSrc *src;
GstAudioSrcClass *csrc;
GstAudioRingBuffer *abuf = GST_AUDIORING_BUFFER (buf);
ReadFunc readfunc;
GstMessage *message;
GValue val = { 0 };
src = GST_AUDIO_SRC (GST_OBJECT_PARENT (buf));
csrc = GST_AUDIO_SRC_GET_CLASS (src);
GST_DEBUG_OBJECT (src, "enter thread");
readfunc = csrc->read;
if (readfunc == NULL)
goto no_function;
/* FIXME: maybe we should at least use a custom pointer type here? */
g_value_init (&val, G_TYPE_POINTER);
g_value_set_pointer (&val, src->thread);
message = gst_message_new_stream_status (GST_OBJECT_CAST (buf),
GST_STREAM_STATUS_TYPE_ENTER, GST_ELEMENT_CAST (src));
gst_message_set_stream_status_object (message, &val);
GST_DEBUG_OBJECT (src, "posting ENTER stream status");
gst_element_post_message (GST_ELEMENT_CAST (src), message);
while (TRUE) {
gint left, len;
guint8 *readptr;
gint readseg;
if (gst_ring_buffer_prepare_read (buf, &readseg, &readptr, &len)) {
gint read;
left = len;
do {
read = readfunc (src, readptr, left);
GST_LOG_OBJECT (src, "transfered %d bytes of %d to segment %d", read,
left, readseg);
if (read < 0 || read > left) {
GST_WARNING_OBJECT (src,
"error reading data %d (reason: %s), skipping segment", read,
g_strerror (errno));
break;
}
left -= read;
readptr += read;
} while (left > 0);
/* we read one segment */
gst_ring_buffer_advance (buf, 1);
} else {
GST_OBJECT_LOCK (abuf);
if (!abuf->running)
goto stop_running;
GST_DEBUG_OBJECT (src, "signal wait");
GST_AUDIORING_BUFFER_SIGNAL (buf);
GST_DEBUG_OBJECT (src, "wait for action");
GST_AUDIORING_BUFFER_WAIT (buf);
GST_DEBUG_OBJECT (src, "got signal");
if (!abuf->running)
goto stop_running;
GST_DEBUG_OBJECT (src, "continue running");
GST_OBJECT_UNLOCK (abuf);
}
}
/* Will never be reached */
g_assert_not_reached ();
return;
/* ERROR */
no_function:
{
GST_DEBUG ("no write function, exit thread");
return;
}
stop_running:
{
GST_OBJECT_UNLOCK (abuf);
GST_DEBUG ("stop running, exit thread");
message = gst_message_new_stream_status (GST_OBJECT_CAST (buf),
GST_STREAM_STATUS_TYPE_LEAVE, GST_ELEMENT_CAST (src));
gst_message_set_stream_status_object (message, &val);
GST_DEBUG_OBJECT (src, "posting LEAVE stream status");
gst_element_post_message (GST_ELEMENT_CAST (src), message);
return;
}
}
/* this internal thread does nothing else but write samples to the audio device.
* It will write each segment in the ringbuffer and will update the play
* pointer.
* The start/stop methods control the thread.
*/
static void
audioringbuffer_thread_func (GstRingBuffer * buf)
{
GstAudioSink *sink;
GstAudioSinkClass *csink;
GstAudioRingBuffer *abuf = GST_AUDIORING_BUFFER_CAST (buf);
WriteFunc writefunc;
GstMessage *message;
GValue val = { 0 };
sink = GST_AUDIO_SINK (GST_OBJECT_PARENT (buf));
csink = GST_AUDIO_SINK_GET_CLASS (sink);
GST_DEBUG_OBJECT (sink, "enter thread");
GST_OBJECT_LOCK (abuf);
GST_DEBUG_OBJECT (sink, "signal wait");
GST_AUDIORING_BUFFER_SIGNAL (buf);
GST_OBJECT_UNLOCK (abuf);
writefunc = csink->write;
if (writefunc == NULL)
goto no_function;
g_value_init (&val, G_TYPE_POINTER);
g_value_set_pointer (&val, sink->thread);
message = gst_message_new_stream_status (GST_OBJECT_CAST (buf),
GST_STREAM_STATUS_TYPE_ENTER, GST_ELEMENT_CAST (sink));
gst_message_set_stream_status_object (message, &val);
GST_DEBUG_OBJECT (sink, "posting ENTER stream status");
gst_element_post_message (GST_ELEMENT_CAST (sink), message);
while (TRUE) {
gint left, len;
guint8 *readptr;
gint readseg;
/* buffer must be started */
if (gst_ring_buffer_prepare_read (buf, &readseg, &readptr, &len)) {
gint written;
left = len;
do {
written = writefunc (sink, readptr, left);
GST_LOG_OBJECT (sink, "transfered %d bytes of %d from segment %d",
written, left, readseg);
if (written < 0 || written > left) {
/* might not be critical, it e.g. happens when aborting playback */
GST_WARNING_OBJECT (sink,
"error writing data in %s (reason: %s), skipping segment (left: %d, written: %d)",
GST_DEBUG_FUNCPTR_NAME (writefunc),
(errno > 1 ? g_strerror (errno) : "unknown"), left, written);
break;
}
left -= written;
readptr += written;
} while (left > 0);
/* clear written samples */
gst_ring_buffer_clear (buf, readseg);
/* we wrote one segment */
gst_ring_buffer_advance (buf, 1);
} else {
GST_OBJECT_LOCK (abuf);
if (!abuf->running)
goto stop_running;
GST_DEBUG_OBJECT (sink, "signal wait");
GST_AUDIORING_BUFFER_SIGNAL (buf);
GST_DEBUG_OBJECT (sink, "wait for action");
#ifndef GSTREAMER_LITE
GST_AUDIORING_BUFFER_WAIT (buf);
#else // GSTREAMER_LITE
// In same cases we may have condition when we waiting here for ring buffer to start,
// while ring buffer is started and data is available. So, lets use wait with timeout
// and recheck if we good to go. wait_segment() will start ring buffer when data is available.
{
GTimeVal timeout;
g_get_current_time(&timeout);
g_time_val_add(&timeout, 100000); // 100 millisecond
GST_AUDIORING_BUFFER_TIMED_WAIT (buf, &timeout);
}
#endif // GSTREAMER_LITE
GST_DEBUG_OBJECT (sink, "got signal");
if (!abuf->running)
goto stop_running;
GST_DEBUG_OBJECT (sink, "continue running");
GST_OBJECT_UNLOCK (abuf);
}
}
/* Will never be reached */
g_assert_not_reached ();
return;
/* ERROR */
no_function:
{
GST_DEBUG_OBJECT (sink, "no write function, exit thread");
return;
}
stop_running:
{
GST_OBJECT_UNLOCK (abuf);
GST_DEBUG_OBJECT (sink, "stop running, exit thread");
message = gst_message_new_stream_status (GST_OBJECT_CAST (buf),
GST_STREAM_STATUS_TYPE_LEAVE, GST_ELEMENT_CAST (sink));
gst_message_set_stream_status_object (message, &val);
GST_DEBUG_OBJECT (sink, "posting LEAVE stream status");
gst_element_post_message (GST_ELEMENT_CAST (sink), message);
return;
}
}
/* this internal thread does nothing else but write samples to the audio device.
* It will write each segment in the ringbuffer and will update the play
* pointer.
* The start/stop methods control the thread.
*/
static void
audioringbuffer_thread_func (GstAudioRingBuffer * buf)
{
GstAudioSink *sink;
GstAudioSinkClass *csink;
GstAudioSinkRingBuffer *abuf = GST_AUDIO_SINK_RING_BUFFER_CAST (buf);
WriteFunc writefunc;
GstMessage *message;
GValue val = { 0 };
sink = GST_AUDIO_SINK (GST_OBJECT_PARENT (buf));
csink = GST_AUDIO_SINK_GET_CLASS (sink);
GST_DEBUG_OBJECT (sink, "enter thread");
GST_OBJECT_LOCK (abuf);
GST_DEBUG_OBJECT (sink, "signal wait");
GST_AUDIO_SINK_RING_BUFFER_SIGNAL (buf);
GST_OBJECT_UNLOCK (abuf);
writefunc = csink->write;
if (writefunc == NULL)
goto no_function;
message = gst_message_new_stream_status (GST_OBJECT_CAST (buf),
GST_STREAM_STATUS_TYPE_ENTER, GST_ELEMENT_CAST (sink));
g_value_init (&val, GST_TYPE_G_THREAD);
g_value_set_boxed (&val, g_thread_self ());
gst_message_set_stream_status_object (message, &val);
g_value_unset (&val);
GST_DEBUG_OBJECT (sink, "posting ENTER stream status");
gst_element_post_message (GST_ELEMENT_CAST (sink), message);
while (TRUE) {
gint left, len;
guint8 *readptr;
gint readseg;
/* buffer must be started */
if (gst_audio_ring_buffer_prepare_read (buf, &readseg, &readptr, &len)) {
gint written;
left = len;
do {
written = writefunc (sink, readptr, left);
GST_LOG_OBJECT (sink, "transfered %d bytes of %d from segment %d",
written, left, readseg);
if (written < 0 || written > left) {
/* might not be critical, it e.g. happens when aborting playback */
GST_WARNING_OBJECT (sink,
"error writing data in %s (reason: %s), skipping segment (left: %d, written: %d)",
GST_DEBUG_FUNCPTR_NAME (writefunc),
(errno > 1 ? g_strerror (errno) : "unknown"), left, written);
break;
}
left -= written;
readptr += written;
} while (left > 0);
/* clear written samples */
gst_audio_ring_buffer_clear (buf, readseg);
/* we wrote one segment */
gst_audio_ring_buffer_advance (buf, 1);
} else {
GST_OBJECT_LOCK (abuf);
if (!abuf->running)
goto stop_running;
if (G_UNLIKELY (g_atomic_int_get (&buf->state) ==
GST_AUDIO_RING_BUFFER_STATE_STARTED)) {
GST_OBJECT_UNLOCK (abuf);
continue;
}
GST_DEBUG_OBJECT (sink, "signal wait");
GST_AUDIO_SINK_RING_BUFFER_SIGNAL (buf);
GST_DEBUG_OBJECT (sink, "wait for action");
GST_AUDIO_SINK_RING_BUFFER_WAIT (buf);
GST_DEBUG_OBJECT (sink, "got signal");
if (!abuf->running)
goto stop_running;
GST_DEBUG_OBJECT (sink, "continue running");
GST_OBJECT_UNLOCK (abuf);
}
}
/* Will never be reached */
g_assert_not_reached ();
return;
/* ERROR */
no_function:
{
GST_DEBUG_OBJECT (sink, "no write function, exit thread");
return;
}
stop_running:
{
GST_OBJECT_UNLOCK (abuf);
GST_DEBUG_OBJECT (sink, "stop running, exit thread");
message = gst_message_new_stream_status (GST_OBJECT_CAST (buf),
GST_STREAM_STATUS_TYPE_LEAVE, GST_ELEMENT_CAST (sink));
g_value_init (&val, GST_TYPE_G_THREAD);
g_value_set_boxed (&val, g_thread_self ());
gst_message_set_stream_status_object (message, &val);
g_value_unset (&val);
GST_DEBUG_OBJECT (sink, "posting LEAVE stream status");
gst_element_post_message (GST_ELEMENT_CAST (sink), message);
return;
}
}
