3 * Copyright (C) 2007 Rene Stadler <mail@renestadler.de>
4 * Copyright (C) 2007-2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
16 * You should have received a copy of the GNU Library General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
26 #include "gstgiobasesink.h"
28 GST_DEBUG_CATEGORY_STATIC (gst_gio_base_sink_debug);
29 #define GST_CAT_DEFAULT gst_gio_base_sink_debug
31 static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
36 #define gst_gio_base_sink_parent_class parent_class
37 G_DEFINE_TYPE (GstGioBaseSink, gst_gio_base_sink, GST_TYPE_BASE_SINK);
39 static void gst_gio_base_sink_finalize (GObject * object);
40 static gboolean gst_gio_base_sink_start (GstBaseSink * base_sink);
41 static gboolean gst_gio_base_sink_stop (GstBaseSink * base_sink);
42 static gboolean gst_gio_base_sink_unlock (GstBaseSink * base_sink);
43 static gboolean gst_gio_base_sink_unlock_stop (GstBaseSink * base_sink);
44 static gboolean gst_gio_base_sink_event (GstBaseSink * base_sink,
46 static GstFlowReturn gst_gio_base_sink_render (GstBaseSink * base_sink,
48 static gboolean gst_gio_base_sink_query (GstBaseSink * bsink, GstQuery * query);
51 gst_gio_base_sink_class_init (GstGioBaseSinkClass * klass)
53 GObjectClass *gobject_class = (GObjectClass *) klass;
54 GstElementClass *gstelement_class = (GstElementClass *) klass;
55 GstBaseSinkClass *gstbasesink_class = (GstBaseSinkClass *) klass;
57 GST_DEBUG_CATEGORY_INIT (gst_gio_base_sink_debug, "gio_base_sink", 0,
60 gobject_class->finalize = gst_gio_base_sink_finalize;
62 gst_element_class_add_pad_template (gstelement_class,
63 gst_static_pad_template_get (&sink_factory));
65 gstbasesink_class->start = GST_DEBUG_FUNCPTR (gst_gio_base_sink_start);
66 gstbasesink_class->stop = GST_DEBUG_FUNCPTR (gst_gio_base_sink_stop);
67 gstbasesink_class->unlock = GST_DEBUG_FUNCPTR (gst_gio_base_sink_unlock);
68 gstbasesink_class->unlock_stop =
69 GST_DEBUG_FUNCPTR (gst_gio_base_sink_unlock_stop);
70 gstbasesink_class->query = GST_DEBUG_FUNCPTR (gst_gio_base_sink_query);
71 gstbasesink_class->event = GST_DEBUG_FUNCPTR (gst_gio_base_sink_event);
72 gstbasesink_class->render = GST_DEBUG_FUNCPTR (gst_gio_base_sink_render);
76 gst_gio_base_sink_init (GstGioBaseSink * sink)
78 gst_base_sink_set_sync (GST_BASE_SINK (sink), FALSE);
80 sink->cancel = g_cancellable_new ();
84 gst_gio_base_sink_finalize (GObject * object)
86 GstGioBaseSink *sink = GST_GIO_BASE_SINK (object);
89 g_object_unref (sink->cancel);
94 g_object_unref (sink->stream);
98 GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (object));
102 gst_gio_base_sink_start (GstBaseSink * base_sink)
104 GstGioBaseSink *sink = GST_GIO_BASE_SINK (base_sink);
105 GstGioBaseSinkClass *gbsink_class = GST_GIO_BASE_SINK_GET_CLASS (sink);
109 /* FIXME: This will likely block */
110 sink->stream = gbsink_class->get_stream (sink);
111 if (G_UNLIKELY (!G_IS_OUTPUT_STREAM (sink->stream))) {
112 GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_WRITE, (NULL),
113 ("No output stream provided by subclass"));
115 } else if (G_UNLIKELY (g_output_stream_is_closed (sink->stream))) {
116 GST_ELEMENT_ERROR (sink, LIBRARY, FAILED, (NULL),
117 ("Output stream is already closed"));
121 GST_DEBUG_OBJECT (sink, "started sink");
127 gst_gio_base_sink_stop (GstBaseSink * base_sink)
129 GstGioBaseSink *sink = GST_GIO_BASE_SINK (base_sink);
130 GstGioBaseSinkClass *klass = GST_GIO_BASE_SINK_GET_CLASS (sink);
134 if (klass->close_on_stop && G_IS_OUTPUT_STREAM (sink->stream)) {
135 GST_DEBUG_OBJECT (sink, "closing stream");
137 /* FIXME: can block but unfortunately we can't use async operations
138 * here because they require a running main loop */
139 success = g_output_stream_close (sink->stream, sink->cancel, &err);
141 if (!success && !gst_gio_error (sink, "g_output_stream_close", &err, NULL)) {
142 GST_ELEMENT_WARNING (sink, RESOURCE, CLOSE, (NULL),
143 ("gio_output_stream_close failed: %s", err->message));
144 g_clear_error (&err);
145 } else if (!success) {
146 GST_ELEMENT_WARNING (sink, RESOURCE, CLOSE, (NULL),
147 ("g_output_stream_close failed"));
149 GST_DEBUG_OBJECT (sink, "g_outut_stream_close succeeded");
152 g_object_unref (sink->stream);
155 success = g_output_stream_flush (sink->stream, sink->cancel, &err);
157 if (!success && !gst_gio_error (sink, "g_output_stream_flush", &err, NULL)) {
158 GST_ELEMENT_WARNING (sink, RESOURCE, CLOSE, (NULL),
159 ("gio_output_stream_flush failed: %s", err->message));
160 g_clear_error (&err);
161 } else if (!success) {
162 GST_ELEMENT_WARNING (sink, RESOURCE, CLOSE, (NULL),
163 ("g_output_stream_flush failed"));
165 GST_DEBUG_OBJECT (sink, "g_outut_stream_flush succeeded");
168 g_object_unref (sink->stream);
176 gst_gio_base_sink_unlock (GstBaseSink * base_sink)
178 GstGioBaseSink *sink = GST_GIO_BASE_SINK (base_sink);
180 GST_LOG_OBJECT (sink, "triggering cancellation");
182 g_cancellable_cancel (sink->cancel);
188 gst_gio_base_sink_unlock_stop (GstBaseSink * base_sink)
190 GstGioBaseSink *sink = GST_GIO_BASE_SINK (base_sink);
192 GST_LOG_OBJECT (sink, "resetting cancellable");
194 g_cancellable_reset (sink->cancel);
200 gst_gio_base_sink_event (GstBaseSink * base_sink, GstEvent * event)
202 GstGioBaseSink *sink = GST_GIO_BASE_SINK (base_sink);
203 GstFlowReturn ret = GST_FLOW_OK;
205 if (sink->stream == NULL)
208 switch (GST_EVENT_TYPE (event)) {
209 case GST_EVENT_SEGMENT:
210 if (G_IS_OUTPUT_STREAM (sink->stream)) {
211 const GstSegment *segment;
213 gst_event_parse_segment (event, &segment);
215 if (segment->format != GST_FORMAT_BYTES) {
216 GST_WARNING_OBJECT (sink, "ignored SEGMENT event in %s format",
217 gst_format_get_name (segment->format));
221 if (GST_GIO_STREAM_IS_SEEKABLE (sink->stream)) {
222 ret = gst_gio_seek (sink, G_SEEKABLE (sink->stream), segment->start,
224 if (ret == GST_FLOW_OK)
225 sink->position = segment->start;
227 ret = GST_FLOW_NOT_SUPPORTED;
233 case GST_EVENT_FLUSH_START:
234 if (G_IS_OUTPUT_STREAM (sink->stream)) {
238 success = g_output_stream_flush (sink->stream, sink->cancel, &err);
240 if (!success && !gst_gio_error (sink, "g_output_stream_flush", &err,
242 GST_ELEMENT_ERROR (sink, RESOURCE, WRITE, (NULL),
243 ("flush failed: %s", err->message));
244 g_clear_error (&err);
252 if (ret == GST_FLOW_OK)
253 return GST_BASE_SINK_CLASS (parent_class)->event (base_sink, event);
255 gst_event_unref (event);
261 gst_gio_base_sink_render (GstBaseSink * base_sink, GstBuffer * buffer)
263 GstGioBaseSink *sink = GST_GIO_BASE_SINK (base_sink);
270 g_return_val_if_fail (G_IS_OUTPUT_STREAM (sink->stream), GST_FLOW_ERROR);
272 data = gst_buffer_map (buffer, &size, NULL, GST_MAP_READ);
274 GST_LOG_OBJECT (sink,
275 "writing %" G_GSIZE_FORMAT " bytes to offset %" G_GUINT64_FORMAT, size,
279 g_output_stream_write (sink->stream, data, size, sink->cancel, &err);
280 gst_buffer_unmap (buffer, data, size);
282 success = (written >= 0);
284 if (G_UNLIKELY (success && written < size)) {
285 /* FIXME: Can this happen? Should we handle it gracefully? gnomevfssink
287 GST_ELEMENT_ERROR (sink, RESOURCE, WRITE, (NULL),
288 ("Could not write to stream: (short write, only %"
289 G_GSSIZE_FORMAT " bytes of %" G_GSIZE_FORMAT " bytes written)",
291 return GST_FLOW_ERROR;
295 sink->position += written;
301 if (!gst_gio_error (sink, "g_output_stream_write", &err, &ret)) {
302 if (GST_GIO_ERROR_MATCHES (err, NO_SPACE)) {
303 GST_ELEMENT_ERROR (sink, RESOURCE, NO_SPACE_LEFT, (NULL),
304 ("Could not write to stream: %s", err->message));
306 GST_ELEMENT_ERROR (sink, RESOURCE, WRITE, (NULL),
307 ("Could not write to stream: %s", err->message));
309 g_clear_error (&err);
317 gst_gio_base_sink_query (GstBaseSink * bsink, GstQuery * query)
319 GstGioBaseSink *sink = GST_GIO_BASE_SINK (bsink);
322 switch (GST_QUERY_TYPE (query)) {
323 case GST_QUERY_POSITION:
324 gst_query_parse_position (query, &format, NULL);
326 case GST_FORMAT_BYTES:
327 case GST_FORMAT_DEFAULT:
328 gst_query_set_position (query, GST_FORMAT_BYTES, sink->position);
333 case GST_QUERY_FORMATS:
334 gst_query_set_formats (query, 2, GST_FORMAT_DEFAULT, GST_FORMAT_BYTES);
337 if (GST_IS_URI_HANDLER (sink)) {
340 uri = gst_uri_handler_get_uri (GST_URI_HANDLER (sink));
341 gst_query_set_uri (query, uri);
347 return GST_BASE_SINK_CLASS (parent_class)->query (bsink, query);