mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-30 13:41:48 +00:00
358 lines
10 KiB
C
358 lines
10 KiB
C
/* GStreamer
|
|
*
|
|
* Copyright (C) 2007 Rene Stadler <mail@renestadler.de>
|
|
* Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>
|
|
*
|
|
* 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., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
|
|
#include "gstgiobasesink.h"
|
|
|
|
GST_DEBUG_CATEGORY_STATIC (gst_gio_base_sink_debug);
|
|
#define GST_CAT_DEFAULT gst_gio_base_sink_debug
|
|
|
|
static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
|
|
GST_PAD_SINK,
|
|
GST_PAD_ALWAYS,
|
|
GST_STATIC_CAPS_ANY);
|
|
|
|
GST_BOILERPLATE (GstGioBaseSink, gst_gio_base_sink, GstBaseSink,
|
|
GST_TYPE_BASE_SINK);
|
|
|
|
static void gst_gio_base_sink_finalize (GObject * object);
|
|
static gboolean gst_gio_base_sink_start (GstBaseSink * base_sink);
|
|
static gboolean gst_gio_base_sink_stop (GstBaseSink * base_sink);
|
|
static gboolean gst_gio_base_sink_unlock (GstBaseSink * base_sink);
|
|
static gboolean gst_gio_base_sink_unlock_stop (GstBaseSink * base_sink);
|
|
static gboolean gst_gio_base_sink_event (GstBaseSink * base_sink,
|
|
GstEvent * event);
|
|
static GstFlowReturn gst_gio_base_sink_render (GstBaseSink * base_sink,
|
|
GstBuffer * buffer);
|
|
static gboolean gst_gio_base_sink_query (GstPad * pad, GstQuery * query);
|
|
|
|
static void
|
|
gst_gio_base_sink_base_init (gpointer gclass)
|
|
{
|
|
GstElementClass *element_class = GST_ELEMENT_CLASS (gclass);
|
|
|
|
GST_DEBUG_CATEGORY_INIT (gst_gio_base_sink_debug, "gio_base_sink", 0,
|
|
"GIO base sink");
|
|
|
|
gst_element_class_add_pad_template (element_class,
|
|
gst_static_pad_template_get (&sink_factory));
|
|
}
|
|
|
|
static void
|
|
gst_gio_base_sink_class_init (GstGioBaseSinkClass * klass)
|
|
{
|
|
GObjectClass *gobject_class;
|
|
GstElementClass *gstelement_class;
|
|
GstBaseSinkClass *gstbasesink_class;
|
|
|
|
gobject_class = (GObjectClass *) klass;
|
|
gstelement_class = (GstElementClass *) klass;
|
|
gstbasesink_class = (GstBaseSinkClass *) klass;
|
|
|
|
gobject_class->finalize = gst_gio_base_sink_finalize;
|
|
|
|
gstbasesink_class->start = GST_DEBUG_FUNCPTR (gst_gio_base_sink_start);
|
|
gstbasesink_class->stop = GST_DEBUG_FUNCPTR (gst_gio_base_sink_stop);
|
|
gstbasesink_class->unlock = GST_DEBUG_FUNCPTR (gst_gio_base_sink_unlock);
|
|
gstbasesink_class->unlock_stop =
|
|
GST_DEBUG_FUNCPTR (gst_gio_base_sink_unlock_stop);
|
|
gstbasesink_class->event = GST_DEBUG_FUNCPTR (gst_gio_base_sink_event);
|
|
gstbasesink_class->render = GST_DEBUG_FUNCPTR (gst_gio_base_sink_render);
|
|
}
|
|
|
|
static void
|
|
gst_gio_base_sink_init (GstGioBaseSink * sink, GstGioBaseSinkClass * gclass)
|
|
{
|
|
gst_pad_set_query_function (GST_BASE_SINK_PAD (sink),
|
|
GST_DEBUG_FUNCPTR (gst_gio_base_sink_query));
|
|
|
|
gst_base_sink_set_sync (GST_BASE_SINK (sink), FALSE);
|
|
|
|
sink->cancel = g_cancellable_new ();
|
|
}
|
|
|
|
static void
|
|
gst_gio_base_sink_finalize (GObject * object)
|
|
{
|
|
GstGioBaseSink *sink = GST_GIO_BASE_SINK (object);
|
|
|
|
if (sink->cancel) {
|
|
g_object_unref (sink->cancel);
|
|
sink->cancel = NULL;
|
|
}
|
|
|
|
if (sink->stream) {
|
|
g_object_unref (sink->stream);
|
|
sink->stream = NULL;
|
|
}
|
|
|
|
GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (object));
|
|
}
|
|
|
|
static gboolean
|
|
gst_gio_base_sink_start (GstBaseSink * base_sink)
|
|
{
|
|
GstGioBaseSink *sink = GST_GIO_BASE_SINK (base_sink);
|
|
|
|
if (!G_IS_OUTPUT_STREAM (sink->stream)) {
|
|
GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_WRITE, (NULL),
|
|
("No stream given yet"));
|
|
return FALSE;
|
|
}
|
|
|
|
sink->position = 0;
|
|
|
|
GST_DEBUG_OBJECT (sink, "started stream");
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_gio_base_sink_stop (GstBaseSink * base_sink)
|
|
{
|
|
GstGioBaseSink *sink = GST_GIO_BASE_SINK (base_sink);
|
|
gboolean success;
|
|
GError *err = NULL;
|
|
|
|
if (G_IS_OUTPUT_STREAM (sink->stream)) {
|
|
GST_DEBUG_OBJECT (sink, "closing stream");
|
|
|
|
/* FIXME: can block but unfortunately we can't use async operations
|
|
* here because they require a running main loop */
|
|
success = g_output_stream_close (sink->stream, sink->cancel, &err);
|
|
|
|
if (!success && !gst_gio_error (sink, "g_output_stream_close", &err, NULL)) {
|
|
GST_ELEMENT_WARNING (sink, RESOURCE, CLOSE, (NULL),
|
|
("g_ooutput_stream_close failed: %s", err->message));
|
|
g_clear_error (&err);
|
|
} else if (!success) {
|
|
GST_ELEMENT_WARNING (sink, RESOURCE, CLOSE, (NULL),
|
|
("g_output_stream_close failed"));
|
|
} else {
|
|
GST_DEBUG_OBJECT (sink, "g_outut_stream_close succeeded");
|
|
}
|
|
|
|
g_object_unref (sink->stream);
|
|
sink->stream = NULL;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_gio_base_sink_unlock (GstBaseSink * base_sink)
|
|
{
|
|
GstGioBaseSink *sink = GST_GIO_BASE_SINK (base_sink);
|
|
|
|
GST_LOG_OBJECT (sink, "triggering cancellation");
|
|
|
|
g_cancellable_cancel (sink->cancel);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_gio_base_sink_unlock_stop (GstBaseSink * base_sink)
|
|
{
|
|
GstGioBaseSink *sink = GST_GIO_BASE_SINK (base_sink);
|
|
|
|
GST_LOG_OBJECT (sink, "resetting cancellable");
|
|
|
|
g_cancellable_reset (sink->cancel);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_gio_base_sink_event (GstBaseSink * base_sink, GstEvent * event)
|
|
{
|
|
GstGioBaseSink *sink = GST_GIO_BASE_SINK (base_sink);
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
|
|
if (sink->stream == NULL)
|
|
return TRUE;
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_NEWSEGMENT:
|
|
if (G_IS_OUTPUT_STREAM (sink->stream)) {
|
|
GstFormat format;
|
|
gint64 offset;
|
|
|
|
gst_event_parse_new_segment (event, NULL, NULL, &format, &offset, NULL,
|
|
NULL);
|
|
|
|
if (format != GST_FORMAT_BYTES) {
|
|
GST_WARNING_OBJECT (sink, "ignored NEWSEGMENT event in %s format",
|
|
gst_format_get_name (format));
|
|
break;
|
|
}
|
|
|
|
if (GST_GIO_STREAM_IS_SEEKABLE (sink->stream)) {
|
|
ret = gst_gio_seek (sink, G_SEEKABLE (sink->stream), offset,
|
|
sink->cancel);
|
|
if (ret == GST_FLOW_OK)
|
|
sink->position = offset;
|
|
} else {
|
|
ret = GST_FLOW_NOT_SUPPORTED;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case GST_EVENT_EOS:
|
|
case GST_EVENT_FLUSH_START:
|
|
if (G_IS_OUTPUT_STREAM (sink->stream)) {
|
|
gboolean success;
|
|
GError *err = NULL;
|
|
|
|
success = g_output_stream_flush (sink->stream, sink->cancel, &err);
|
|
|
|
if (!success && !gst_gio_error (sink, "g_output_stream_flush", &err,
|
|
&ret)) {
|
|
GST_ELEMENT_ERROR (sink, RESOURCE, WRITE, (NULL),
|
|
("flush failed: %s", err->message));
|
|
g_clear_error (&err);
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return (ret == GST_FLOW_OK);
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_gio_base_sink_render (GstBaseSink * base_sink, GstBuffer * buffer)
|
|
{
|
|
GstGioBaseSink *sink = GST_GIO_BASE_SINK (base_sink);
|
|
gssize written;
|
|
gboolean success;
|
|
GError *err = NULL;
|
|
|
|
g_return_val_if_fail (G_IS_OUTPUT_STREAM (sink->stream), GST_FLOW_ERROR);
|
|
|
|
GST_LOG_OBJECT (sink, "writing %u bytes to offset %" G_GUINT64_FORMAT,
|
|
GST_BUFFER_SIZE (buffer), sink->position);
|
|
|
|
written = g_output_stream_write (sink->stream,
|
|
GST_BUFFER_DATA (buffer), GST_BUFFER_SIZE (buffer), sink->cancel, &err);
|
|
|
|
success = (written >= 0);
|
|
|
|
if (G_UNLIKELY (success && written < GST_BUFFER_SIZE (buffer))) {
|
|
/* FIXME: Can this happen? Should we handle it gracefully? gnomevfssink
|
|
* doesn't... */
|
|
GST_ELEMENT_ERROR (sink, RESOURCE, WRITE, (NULL),
|
|
("Could not write to stream: (short write, only %"
|
|
G_GSSIZE_FORMAT " bytes of %d bytes written)",
|
|
written, GST_BUFFER_SIZE (buffer)));
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
if (success) {
|
|
sink->position += written;
|
|
return GST_FLOW_OK;
|
|
|
|
} else {
|
|
GstFlowReturn ret;
|
|
|
|
if (!gst_gio_error (sink, "g_output_stream_write", &err, &ret)) {
|
|
GST_ELEMENT_ERROR (sink, RESOURCE, WRITE, (NULL),
|
|
("Could not write to stream: %s", err->message));
|
|
g_clear_error (&err);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_gio_base_sink_query (GstPad * pad, GstQuery * query)
|
|
{
|
|
GstGioBaseSink *sink = GST_GIO_BASE_SINK (GST_PAD_PARENT (pad));
|
|
GstFormat format;
|
|
|
|
switch (GST_QUERY_TYPE (query)) {
|
|
case GST_QUERY_POSITION:
|
|
gst_query_parse_position (query, &format, NULL);
|
|
switch (format) {
|
|
case GST_FORMAT_BYTES:
|
|
case GST_FORMAT_DEFAULT:
|
|
gst_query_set_position (query, GST_FORMAT_BYTES, sink->position);
|
|
return TRUE;
|
|
default:
|
|
return FALSE;
|
|
}
|
|
case GST_QUERY_FORMATS:
|
|
gst_query_set_formats (query, 2, GST_FORMAT_DEFAULT, GST_FORMAT_BYTES);
|
|
return TRUE;
|
|
case GST_QUERY_URI:
|
|
if (GST_IS_URI_HANDLER (sink)) {
|
|
const gchar *uri;
|
|
|
|
uri = gst_uri_handler_get_uri (GST_URI_HANDLER (sink));
|
|
gst_query_set_uri (query, uri);
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
default:
|
|
return gst_pad_query_default (pad, query);
|
|
}
|
|
}
|
|
|
|
void
|
|
gst_gio_base_sink_set_stream (GstGioBaseSink * sink, GOutputStream * stream)
|
|
{
|
|
g_return_if_fail (G_IS_OUTPUT_STREAM (stream));
|
|
g_return_if_fail ((GST_STATE (sink) != GST_STATE_PLAYING &&
|
|
GST_STATE (sink) != GST_STATE_PAUSED));
|
|
|
|
if (G_IS_OUTPUT_STREAM (sink->stream)) {
|
|
gboolean success;
|
|
GError *err = NULL;
|
|
|
|
GST_DEBUG_OBJECT (sink, "closing old stream");
|
|
|
|
/* FIXME: can block but unfortunately we can't use async operations
|
|
* here because they require a running main loop */
|
|
success = g_output_stream_close (sink->stream, sink->cancel, &err);
|
|
|
|
if (!success && !gst_gio_error (sink, "g_output_stream_close", &err, NULL)) {
|
|
GST_ELEMENT_WARNING (sink, RESOURCE, CLOSE, (NULL),
|
|
("g_output_stream_close failed: %s", err->message));
|
|
g_clear_error (&err);
|
|
} else if (!success) {
|
|
GST_ELEMENT_WARNING (sink, RESOURCE, CLOSE, (NULL),
|
|
("g_output_stream_close failed"));
|
|
} else {
|
|
GST_DEBUG_OBJECT (sink, "g_output_stream_close succeeded");
|
|
}
|
|
|
|
g_object_unref (sink->stream);
|
|
sink->stream = NULL;
|
|
}
|
|
|
|
sink->stream = stream;
|
|
}
|