From 5739f5f3cec195ca6f9a5a1a1f9de7e4cd1c98f6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ren=C3=A9=20Stadler?= Date: Fri, 21 Sep 2007 17:07:56 +0000 Subject: Add a GIO/GVFS plugin with source and sink elements. This will only be enabled when --enable-experimental is given to... MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Original commit message from CVS: Patch by: René Stadler * configure.ac: * ext/Makefile.am: * ext/gio/Makefile.am: * ext/gio/gstgio.c: (gst_gio_error), (gst_gio_seek), (gst_gio_get_supported_protocols), (gst_gio_uri_handler_get_type_sink), (gst_gio_uri_handler_get_type_src), (gst_gio_uri_handler_get_protocols), (gst_gio_uri_handler_get_uri), (gst_gio_uri_handler_set_uri), (gst_gio_uri_handler_init), (gst_gio_uri_handler_do_init), (plugin_init): * ext/gio/gstgio.h: * ext/gio/gstgiosink.c: (gst_gio_sink_base_init), (gst_gio_sink_class_init), (gst_gio_sink_init), (gst_gio_sink_finalize), (gst_gio_sink_set_property), (gst_gio_sink_get_property), (gst_gio_sink_start), (gst_gio_sink_stop), (gst_gio_sink_unlock), (gst_gio_sink_unlock_stop), (gst_gio_sink_event), (gst_gio_sink_render), (gst_gio_sink_query): * ext/gio/gstgiosink.h: * ext/gio/gstgiosrc.c: (gst_gio_src_base_init), (gst_gio_src_class_init), (gst_gio_src_init), (gst_gio_src_finalize), (gst_gio_src_set_property), (gst_gio_src_get_property), (gst_gio_src_start), (gst_gio_src_stop), (gst_gio_src_get_size), (gst_gio_src_is_seekable), (gst_gio_src_unlock), (gst_gio_src_unlock_stop), (gst_gio_src_check_get_range), (gst_gio_src_create): * ext/gio/gstgiosrc.h: Add a GIO/GVFS plugin with source and sink elements. This will only be enabled when --enable-experimental is given to configure for now as the GIO API is not stable yet. Fixes #476916. --- ext/Makefile.am | 8 + ext/gio/Makefile.am | 13 ++ ext/gio/gstgio.c | 217 +++++++++++++++++++++++++++ ext/gio/gstgio.h | 40 +++++ ext/gio/gstgiosink.c | 417 +++++++++++++++++++++++++++++++++++++++++++++++++++ ext/gio/gstgiosink.h | 65 ++++++++ ext/gio/gstgiosrc.c | 389 +++++++++++++++++++++++++++++++++++++++++++++++ ext/gio/gstgiosrc.h | 65 ++++++++ 8 files changed, 1214 insertions(+) create mode 100644 ext/gio/Makefile.am create mode 100644 ext/gio/gstgio.c create mode 100644 ext/gio/gstgio.h create mode 100644 ext/gio/gstgiosink.c create mode 100644 ext/gio/gstgiosink.h create mode 100644 ext/gio/gstgiosrc.c create mode 100644 ext/gio/gstgiosrc.h (limited to 'ext') diff --git a/ext/Makefile.am b/ext/Makefile.am index e3c2076f..d5cf99fd 100644 --- a/ext/Makefile.am +++ b/ext/Makefile.am @@ -88,6 +88,12 @@ else FAAD_DIR= endif +if USE_GIO +GIO_DIR=gio +else +GIO_DIR= +endif + if USE_GSM GSM_DIR=gsm else @@ -278,6 +284,7 @@ SUBDIRS=\ $(DTS_DIR) \ $(FAAC_DIR) \ $(FAAD_DIR) \ + $(GIO_DIR) \ $(GSM_DIR) \ $(HERMES_DIR) \ $(IVORBIS_DIR) \ @@ -317,6 +324,7 @@ DIST_SUBDIRS = \ directfb \ faac \ faad \ + gio \ gsm \ ivorbis \ ladspa \ diff --git a/ext/gio/Makefile.am b/ext/gio/Makefile.am new file mode 100644 index 00000000..15d57449 --- /dev/null +++ b/ext/gio/Makefile.am @@ -0,0 +1,13 @@ +# plugindir is set in configure + +plugin_LTLIBRARIES = libgstgio.la + +# sources used to compile this plug-in +libgstgio_la_SOURCES = gstgio.c gstgiosink.c gstgiosrc.c + +libgstgio_la_CFLAGS = $(GST_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS) $(GIO_CFLAGS) +libgstgio_la_LIBADD = $(GST_LIBS) $(GST_BASE_LIBS) $(GIO_LIBS) +libgstgio_la_LDFLAGS = $(GST_GIO_LDFLAGS) + +# headers we need but don't want installed +noinst_HEADERS = gstgio.h gstgiosink.h gstgiosrc.h diff --git a/ext/gio/gstgio.c b/ext/gio/gstgio.c new file mode 100644 index 00000000..3680428c --- /dev/null +++ b/ext/gio/gstgio.c @@ -0,0 +1,217 @@ +/* GStreamer + * + * Copyright (C) 2007 Rene Stadler + * + * 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 "gstgio.h" +#include "gstgiosink.h" +#include "gstgiosrc.h" + +#include + +GST_DEBUG_CATEGORY_STATIC (gst_gio_debug); +#define GST_CAT_DEFAULT gst_gio_debug + +/* @func_name: Name of the GIO function, for debugging messages. + * @err: Error location. *err may be NULL, but err must be non-NULL. + * @ret: Flow return location. May be NULL. Is set to either #GST_FLOW_ERROR + * or #GST_FLOW_WRONG_STATE. + * + * Returns: TRUE to indicate a handled error. Error at given location err will + * be freed and *err will be set to NULL. A FALSE return indicates an unhandled + * error: The err location is unchanged and guaranteed to be != NULL. ret, if + * given, is set to GST_FLOW_ERROR. + */ +gboolean +gst_gio_error (gpointer element, const gchar * func_name, GError ** err, + GstFlowReturn * ret) +{ + gboolean handled = TRUE; + + if (ret) + *ret = GST_FLOW_ERROR; + + if (GST_GIO_ERROR_MATCHES (*err, CANCELLED)) { + GST_DEBUG_OBJECT (element, "blocking I/O call cancelled (%s)", func_name); + if (ret) + *ret = GST_FLOW_WRONG_STATE; + } else if (*err != NULL) { + handled = FALSE; + } else { + GST_ELEMENT_ERROR (element, LIBRARY, FAILED, (NULL), + ("%s call failed without error set", func_name)); + } + + if (handled) + g_clear_error (err); + + return handled; +} + +GstFlowReturn +gst_gio_seek (gpointer element, GSeekable * stream, guint64 offset, + GCancellable * cancel) +{ + gboolean success; + GstFlowReturn ret; + GError *err = NULL; + + GST_LOG_OBJECT (element, "seeking to offset %" G_GINT64_FORMAT, offset); + + success = g_seekable_seek (stream, offset, G_SEEK_SET, cancel, &err); + + if (success) + ret = GST_FLOW_OK; + else if (!gst_gio_error (element, "g_seekable_seek", &err, &ret)) { + GST_ELEMENT_ERROR (element, RESOURCE, SEEK, (NULL), + ("Could not seek: %s", err->message)); + g_clear_error (&err); + } + + return ret; +} + +static gchar ** +gst_gio_get_supported_protocols (void) +{ + /* FIXME: Figure out supported schemes enumeration method for GIO. */ + + const gchar *protocols[] = { "file", "ftp", "sftp", "smb", NULL }; + + return g_strdupv ((gchar **) protocols); +} + +static GstURIType +gst_gio_uri_handler_get_type_sink (void) +{ + return GST_URI_SINK; +} + +static GstURIType +gst_gio_uri_handler_get_type_src (void) +{ + return GST_URI_SRC; +} + +static gchar ** +gst_gio_uri_handler_get_protocols (void) +{ + static gchar **protocols = NULL; + + if (!protocols) + protocols = gst_gio_get_supported_protocols (); + + return protocols; +} + +static const gchar * +gst_gio_uri_handler_get_uri (GstURIHandler * handler) +{ + GstElement *element = GST_ELEMENT (handler); + const gchar *uri; + + g_return_val_if_fail (GST_IS_ELEMENT (element), FALSE); + + g_object_get (G_OBJECT (element), "location", &uri, NULL); + + return uri; +} + +static gboolean +gst_gio_uri_handler_set_uri (GstURIHandler * handler, const gchar * uri) +{ + GstElement *element = GST_ELEMENT (handler); + + g_return_val_if_fail (GST_IS_ELEMENT (element), FALSE); + + if (GST_STATE (element) == GST_STATE_PLAYING || + GST_STATE (element) == GST_STATE_PAUSED) + return FALSE; + + g_object_set (G_OBJECT (element), "location", uri, NULL); + + return TRUE; +} + +static void +gst_gio_uri_handler_init (gpointer g_iface, gpointer iface_data) +{ + GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface; + gboolean sink = GPOINTER_TO_INT (iface_data); /* See in do_init below. */ + + if (sink) + iface->get_type = gst_gio_uri_handler_get_type_sink; + else + iface->get_type = gst_gio_uri_handler_get_type_src; + iface->get_protocols = gst_gio_uri_handler_get_protocols; + iface->get_uri = gst_gio_uri_handler_get_uri; + iface->set_uri = gst_gio_uri_handler_set_uri; +} + +void +gst_gio_uri_handler_do_init (GType type) +{ + GInterfaceInfo uri_handler_info = { + gst_gio_uri_handler_init, + NULL, + NULL + }; + + /* Store information for uri_handler_init to use for distinguishing the + * element types. This lets us use a single interface implementation for both + * classes. */ + uri_handler_info.interface_data = GINT_TO_POINTER (g_type_is_a (type, + GST_TYPE_BASE_SINK)); + + g_type_add_interface_static (type, GST_TYPE_URI_HANDLER, &uri_handler_info); +} + +static gboolean +plugin_init (GstPlugin * plugin) +{ + gboolean ret = TRUE; + + GST_DEBUG_CATEGORY_INIT (gst_gio_debug, "gio", 0, "GIO elements"); + + /* FIXME: This is needed to prevent a crash. Needs further investigation + * probably. */ + if (g_vfs_get_default () == NULL) { + GST_WARNING ("Failed to initialize default VFS, not registering plugin"); + return FALSE; + } + + /* FIXME: Rank is MARGINAL for now, should be at least SECONDARY+1 in the future + * to replace gnomevfssink/src. For testing purposes PRIMARY+1 one makes sense + * so it gets autoplugged and preferred over filesrc/sink. */ + + ret &= gst_element_register (plugin, "giosink", GST_RANK_MARGINAL, + GST_TYPE_GIO_SINK); + + ret &= gst_element_register (plugin, "giosrc", GST_RANK_MARGINAL, + GST_TYPE_GIO_SRC); + + return ret; +} + +GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, "gio", + "GIO elements", plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, + GST_PACKAGE_ORIGIN) diff --git a/ext/gio/gstgio.h b/ext/gio/gstgio.h new file mode 100644 index 00000000..ec6b635a --- /dev/null +++ b/ext/gio/gstgio.h @@ -0,0 +1,40 @@ +/* GStreamer + * + * Copyright (C) 2007 Rene Stadler + * + * 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. + */ + +#ifndef __GSTGIO_H__ +#define __GSTGIO_H__ + +#include +#include +#include + +G_BEGIN_DECLS + +#define GST_GIO_ERROR_MATCHES(err, code) g_error_matches (err, G_IO_ERROR, G_IO_ERROR_##code) + +gboolean gst_gio_error (gpointer element, const gchar *func_name, + GError **err, GstFlowReturn *ret); +GstFlowReturn gst_gio_seek (gpointer element, GSeekable *stream, guint64 offset, + GCancellable *cancel); +void gst_gio_uri_handler_do_init (GType type); + +G_END_DECLS + +#endif /* __GSTGIO_H__ */ diff --git a/ext/gio/gstgiosink.c b/ext/gio/gstgiosink.c new file mode 100644 index 00000000..0b2f65aa --- /dev/null +++ b/ext/gio/gstgiosink.c @@ -0,0 +1,417 @@ +/* GStreamer + * + * Copyright (C) 2007 Rene Stadler + * + * 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. + */ + +/** + * SECTION:element-giosink + * + * + * Example launch line + * + * + * gst-launch audiotestsrc num-buffers=100 ! flacenc ! giosink location=file:///home/foo/bar.flac + * + * + * + */ + +#ifdef HAVE_CONFIG_H +#include +#endif + +#include "gstgiosink.h" + +GST_DEBUG_CATEGORY_STATIC (gst_gio_sink_debug); +#define GST_CAT_DEFAULT gst_gio_sink_debug + +/* Filter signals and args */ +enum +{ + LAST_SIGNAL +}; + +enum +{ + ARG_0, + ARG_LOCATION +}; + +static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink", + GST_PAD_SINK, + GST_PAD_ALWAYS, + GST_STATIC_CAPS ("ANY") + ); + +GST_BOILERPLATE_FULL (GstGioSink, gst_gio_sink, GstBaseSink, GST_TYPE_BASE_SINK, + gst_gio_uri_handler_do_init); + +static void gst_gio_sink_finalize (GObject * object); +static void gst_gio_sink_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec); +static void gst_gio_sink_get_property (GObject * object, guint prop_id, + GValue * value, GParamSpec * pspec); +static gboolean gst_gio_sink_start (GstBaseSink * base_sink); +static gboolean gst_gio_sink_stop (GstBaseSink * base_sink); +static gboolean gst_gio_sink_unlock (GstBaseSink * base_sink); +static gboolean gst_gio_sink_unlock_stop (GstBaseSink * base_sink); +static gboolean gst_gio_sink_event (GstBaseSink * base_sink, GstEvent * event); +static GstFlowReturn gst_gio_sink_render (GstBaseSink * base_sink, + GstBuffer * buffer); +static gboolean gst_gio_sink_query (GstPad * pad, GstQuery * query); + +static void +gst_gio_sink_base_init (gpointer gclass) +{ + static GstElementDetails element_details = { + "GIO sink", + "Sink/File", + "Write to any GVFS-supported location", + "Ren\xc3\xa9 Stadler " + }; + GstElementClass *element_class = GST_ELEMENT_CLASS (gclass); + + GST_DEBUG_CATEGORY_INIT (gst_gio_sink_debug, "giosink", 0, "GIO source"); + + gst_element_class_add_pad_template (element_class, + gst_static_pad_template_get (&sink_factory)); + gst_element_class_set_details (element_class, &element_details); +} + +static void +gst_gio_sink_class_init (GstGioSinkClass * 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_sink_finalize; + gobject_class->set_property = gst_gio_sink_set_property; + gobject_class->get_property = gst_gio_sink_get_property; + + g_object_class_install_property (gobject_class, ARG_LOCATION, + g_param_spec_string ("location", "Location", "URI location to write to", + NULL, G_PARAM_READWRITE)); + + gstbasesink_class->start = GST_DEBUG_FUNCPTR (gst_gio_sink_start); + gstbasesink_class->stop = GST_DEBUG_FUNCPTR (gst_gio_sink_stop); + gstbasesink_class->unlock = GST_DEBUG_FUNCPTR (gst_gio_sink_unlock); + gstbasesink_class->unlock_stop = GST_DEBUG_FUNCPTR (gst_gio_sink_unlock_stop); + gstbasesink_class->event = GST_DEBUG_FUNCPTR (gst_gio_sink_event); + gstbasesink_class->render = GST_DEBUG_FUNCPTR (gst_gio_sink_render); +} + +static void +gst_gio_sink_init (GstGioSink * sink, GstGioSinkClass * gclass) +{ + gst_pad_set_query_function (GST_BASE_SINK_PAD (sink), + GST_DEBUG_FUNCPTR (gst_gio_sink_query)); + + GST_BASE_SINK (sink)->sync = FALSE; + + sink->cancel = g_cancellable_new (); +} + +static void +gst_gio_sink_finalize (GObject * object) +{ + GstGioSink *sink = GST_GIO_SINK (object); + + g_object_unref (sink->cancel); + + if (sink->file) + g_object_unref (sink->file); + + g_free (sink->location); + + GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (object)); +} + +static void +gst_gio_sink_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec) +{ + GstGioSink *sink = GST_GIO_SINK (object); + + switch (prop_id) { + case ARG_LOCATION: + g_free (sink->location); + sink->location = g_strdup (g_value_get_string (value)); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +gst_gio_sink_get_property (GObject * object, guint prop_id, + GValue * value, GParamSpec * pspec) +{ + GstGioSink *sink = GST_GIO_SINK (object); + + switch (prop_id) { + case ARG_LOCATION: + g_value_set_string (value, sink->location); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static gboolean +gst_gio_sink_start (GstBaseSink * base_sink) +{ + GstGioSink *sink = GST_GIO_SINK (base_sink); + gboolean success; + GError *err = NULL; + + if (sink->location == NULL) { + GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_WRITE, (NULL), + ("No location given")); + return FALSE; + } + + sink->file = g_file_new_for_uri (sink->location); + + if (sink->file == NULL) { + GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_WRITE, (NULL), + ("Malformed URI or protocol not supported (%s)", sink->location)); + return FALSE; + } + + sink->stream = g_file_create (sink->file, sink->cancel, &err); + success = (sink->stream != NULL); + + if (!success && !gst_gio_error (sink, "g_file_create", &err, NULL)) { + + /*if (GST_GIO_ERROR_MATCHES (err, EXISTS)) */ + /* FIXME: Retry with replace if overwrite == TRUE! */ + + if (GST_GIO_ERROR_MATCHES (err, NOT_FOUND)) + GST_ELEMENT_ERROR (sink, RESOURCE, NOT_FOUND, (NULL), + ("Could not open location %s for writing: %s", + sink->location, err->message)); + else + GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_READ, (NULL), + ("Could not open location %s for writing: %s", + sink->location, err->message)); + + g_clear_error (&err); + } + + if (!success) { + g_object_unref (sink->file); + sink->file = NULL; + + return FALSE; + } + + sink->position = 0; + + GST_DEBUG_OBJECT (sink, "opened location %s", sink->location); + + return TRUE; +} + +static gboolean +gst_gio_sink_stop (GstBaseSink * base_sink) +{ + GstGioSink *sink = GST_GIO_SINK (base_sink); + gboolean success = TRUE; + GError *err = NULL; + + if (sink->file != NULL) { + g_object_unref (sink->file); + sink->file = NULL; + } + + if (sink->stream != NULL) { + /* FIXME: In case that the call below would block, there is no one to + * trigger the cancellation! */ + + success = g_output_stream_close (G_OUTPUT_STREAM (sink->stream), + sink->cancel, &err); + + if (success) { + GST_DEBUG_OBJECT (sink, "closed location %s", sink->location); + } else if (!gst_gio_error (sink, "g_output_stream_close", &err, NULL)) { + GST_ELEMENT_ERROR (sink, RESOURCE, CLOSE, (NULL), + ("g_output_stream_close failed: %s", err->message)); + g_clear_error (&err); + } + + g_object_unref (sink->stream); + sink->stream = NULL; + } + + return success; +} + +static gboolean +gst_gio_sink_unlock (GstBaseSink * base_sink) +{ + GstGioSink *sink = GST_GIO_SINK (base_sink); + + GST_LOG_OBJECT (sink, "triggering cancellation"); + + g_cancellable_cancel (sink->cancel); + + return TRUE; +} + +static gboolean +gst_gio_sink_unlock_stop (GstBaseSink * base_sink) +{ + GstGioSink *sink = GST_GIO_SINK (base_sink); + + GST_LOG_OBJECT (sink, "restoring cancellable"); + + g_object_unref (sink->cancel); + sink->cancel = g_cancellable_new (); + + return TRUE; +} + +static gboolean +gst_gio_sink_event (GstBaseSink * base_sink, GstEvent * event) +{ + GstGioSink *sink = GST_GIO_SINK (base_sink); + GstFlowReturn ret = GST_FLOW_OK; + + if (sink->stream == NULL) + return TRUE; + + switch (GST_EVENT_TYPE (event)) { + case GST_EVENT_NEWSEGMENT: + { + 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; + } + + ret = gst_gio_seek (sink, G_SEEKABLE (sink->stream), offset, + sink->cancel); + + if (ret == GST_FLOW_OK) + sink->position = offset; + } + break; + + case GST_EVENT_EOS: + case GST_EVENT_FLUSH_START: + { + gboolean success; + GError *err = NULL; + + success = g_output_stream_flush (G_OUTPUT_STREAM (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_sink_render (GstBaseSink * base_sink, GstBuffer * buffer) +{ + GstGioSink *sink = GST_GIO_SINK (base_sink); + gssize written; + gboolean success; + GError *err = NULL; + + GST_LOG_OBJECT (sink, "writing %u bytes to offset %" G_GUINT64_FORMAT, + GST_BUFFER_SIZE (buffer), sink->position); + + written = g_output_stream_write (G_OUTPUT_STREAM (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 location %s: (short write)", sink->location)); + 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 location %s: %s", sink->location, err->message)); + g_clear_error (&err); + } + + return ret; + } +} + +static gboolean +gst_gio_sink_query (GstPad * pad, GstQuery * query) +{ + GstGioSink *sink = GST_GIO_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; + default: + return gst_pad_query_default (pad, query); + } +} diff --git a/ext/gio/gstgiosink.h b/ext/gio/gstgiosink.h new file mode 100644 index 00000000..6d4de8d6 --- /dev/null +++ b/ext/gio/gstgiosink.h @@ -0,0 +1,65 @@ +/* GStreamer + * + * Copyright (C) 2007 Rene Stadler + * + * 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. + */ + +#ifndef __GSTGIOSINK_H__ +#define __GSTGIOSINK_H__ + +#include "gstgio.h" + +#include +#include + +G_BEGIN_DECLS + +#define GST_TYPE_GIO_SINK \ + (gst_gio_sink_get_type()) +#define GST_GIO_SINK(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GIO_SINK,GstGioSink)) +#define GST_GIO_SINK_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GIO_SINK,GstGioSinkClass)) +#define GST_IS_GIO_SINK(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GIO_SINK)) +#define GST_IS_GIO_SINK_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GIO_SINK)) + +typedef struct _GstGioSink GstGioSink; +typedef struct _GstGioSinkClass GstGioSinkClass; + +struct _GstGioSink +{ + GstBaseSink sink; + + GCancellable *cancel; + GFile *file; + gchar *location; + guint64 position; + GFileOutputStream *stream; +}; + +struct _GstGioSinkClass +{ + GstBaseSinkClass parent_class; +}; + +GType gst_gio_sink_get_type (void); + +G_END_DECLS + +#endif /* __GSTGIOSINK_H__ */ diff --git a/ext/gio/gstgiosrc.c b/ext/gio/gstgiosrc.c new file mode 100644 index 00000000..8fe1a988 --- /dev/null +++ b/ext/gio/gstgiosrc.c @@ -0,0 +1,389 @@ +/* GStreamer + * + * Copyright (C) 2007 Rene Stadler + * + * 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. + */ + +/** + * SECTION:element-giosrc + * + * + * Example launch line + * + * + * gst-launch giosrc location=file:///home/foo/bar.ext ! fakesink + * + * + * + */ + +#ifdef HAVE_CONFIG_H +#include +#endif + +#include "gstgiosrc.h" + +GST_DEBUG_CATEGORY_STATIC (gst_gio_src_debug); +#define GST_CAT_DEFAULT gst_gio_src_debug + +enum +{ + ARG_0, + ARG_LOCATION +}; + +static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src", + GST_PAD_SRC, + GST_PAD_ALWAYS, + GST_STATIC_CAPS ("ANY") + ); + +GST_BOILERPLATE_FULL (GstGioSrc, gst_gio_src, GstBaseSrc, GST_TYPE_BASE_SRC, + gst_gio_uri_handler_do_init); + +static void gst_gio_src_finalize (GObject * object); +static void gst_gio_src_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec); +static void gst_gio_src_get_property (GObject * object, guint prop_id, + GValue * value, GParamSpec * pspec); +static gboolean gst_gio_src_start (GstBaseSrc * base_src); +static gboolean gst_gio_src_stop (GstBaseSrc * base_src); +static gboolean gst_gio_src_get_size (GstBaseSrc * base_src, guint64 * size); +static gboolean gst_gio_src_is_seekable (GstBaseSrc * base_src); +static gboolean gst_gio_src_unlock (GstBaseSrc * base_src); +static gboolean gst_gio_src_unlock_stop (GstBaseSrc * base_src); +static gboolean gst_gio_src_check_get_range (GstBaseSrc * base_src); +static GstFlowReturn gst_gio_src_create (GstBaseSrc * base_src, guint64 offset, + guint size, GstBuffer ** buf); + +static void +gst_gio_src_base_init (gpointer gclass) +{ + static GstElementDetails element_details = { + "GIO source", + "Source/File", + "Read from any GVFS-supported location", + "Ren\xc3\xa9 Stadler " + }; + GstElementClass *element_class = GST_ELEMENT_CLASS (gclass); + + GST_DEBUG_CATEGORY_INIT (gst_gio_src_debug, "giosrc", 0, "GIO source"); + + gst_element_class_add_pad_template (element_class, + gst_static_pad_template_get (&src_factory)); + gst_element_class_set_details (element_class, &element_details); +} + +static void +gst_gio_src_class_init (GstGioSrcClass * klass) +{ + GObjectClass *gobject_class; + GstElementClass *gstelement_class; + GstBaseSrcClass *gstbasesrc_class; + + gobject_class = (GObjectClass *) klass; + gstelement_class = (GstElementClass *) klass; + gstbasesrc_class = (GstBaseSrcClass *) klass; + + gobject_class->finalize = gst_gio_src_finalize; + gobject_class->set_property = gst_gio_src_set_property; + gobject_class->get_property = gst_gio_src_get_property; + + g_object_class_install_property (gobject_class, ARG_LOCATION, + g_param_spec_string ("location", "Location", "URI location to read from", + NULL, G_PARAM_READWRITE)); + + gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_gio_src_start); + gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_gio_src_stop); + gstbasesrc_class->get_size = GST_DEBUG_FUNCPTR (gst_gio_src_get_size); + gstbasesrc_class->is_seekable = GST_DEBUG_FUNCPTR (gst_gio_src_is_seekable); + gstbasesrc_class->unlock = GST_DEBUG_FUNCPTR (gst_gio_src_unlock); + gstbasesrc_class->unlock_stop = GST_DEBUG_FUNCPTR (gst_gio_src_unlock_stop); + gstbasesrc_class->check_get_range = + GST_DEBUG_FUNCPTR (gst_gio_src_check_get_range); + gstbasesrc_class->create = GST_DEBUG_FUNCPTR (gst_gio_src_create); +} + +static void +gst_gio_src_init (GstGioSrc * src, GstGioSrcClass * gclass) +{ + src->cancel = g_cancellable_new (); +} + +static void +gst_gio_src_finalize (GObject * object) +{ + GstGioSrc *src = GST_GIO_SRC (object); + + g_object_unref (src->cancel); + + if (src->file) + g_object_unref (src->file); + + g_free (src->location); + + GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (object)); +} + +static void +gst_gio_src_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec) +{ + GstGioSrc *src = GST_GIO_SRC (object); + + switch (prop_id) { + case ARG_LOCATION: + g_free (src->location); + src->location = g_strdup (g_value_get_string (value)); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +gst_gio_src_get_property (GObject * object, guint prop_id, + GValue * value, GParamSpec * pspec) +{ + GstGioSrc *src = GST_GIO_SRC (object); + + switch (prop_id) { + case ARG_LOCATION: + g_value_set_string (value, src->location); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static gboolean +gst_gio_src_start (GstBaseSrc * base_src) +{ + GstGioSrc *src = GST_GIO_SRC (base_src); + GError *err = NULL; + + if (src->location == NULL) { + GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), ("No location given")); + return FALSE; + } + + src->file = g_file_new_for_uri (src->location); + + if (src->file == NULL) { + GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), + ("Malformed URI or protocol not supported (%s)", src->location)); + return FALSE; + } + + src->stream = g_file_read (src->file, src->cancel, &err); + + if (src->stream == NULL && !gst_gio_error (src, "g_file_read", &err, NULL)) { + + if (GST_GIO_ERROR_MATCHES (err, NOT_FOUND)) + GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, (NULL), + ("Could not open location %s for reading: %s", + src->location, err->message)); + else + GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), + ("Could not open location %s for reading: %s", + src->location, err->message)); + + g_clear_error (&err); + + g_object_unref (src->file); + src->file = NULL; + + return FALSE; + + } else if (src->stream == NULL) + return FALSE; + + src->position = 0; + + GST_DEBUG_OBJECT (src, "opened location %s", src->location); + + return TRUE; +} + +static gboolean +gst_gio_src_stop (GstBaseSrc * base_src) +{ + GstGioSrc *src = GST_GIO_SRC (base_src); + gboolean success = TRUE; + GError *err = NULL; + + if (src->stream != NULL) { + /* FIXME: In case that the call below would block, there is no one to + * trigger the cancellation! */ + + success = g_input_stream_close (G_INPUT_STREAM (src->stream), src->cancel, + &err); + + if (!success && !gst_gio_error (src, "g_input_stream_close", &err, NULL)) { + GST_ELEMENT_ERROR (src, RESOURCE, CLOSE, (NULL), + ("g_input_stream_close failed: %s", err->message)); + g_clear_error (&err); + } + + g_object_unref (src->stream); + src->stream = NULL; + } + + if (src->file != NULL) { + g_object_unref (src->file); + src->file = NULL; + } + + GST_DEBUG_OBJECT (src, "closed location %s", src->location); + + return success; +} + +static gboolean +gst_gio_src_get_size (GstBaseSrc * base_src, guint64 * size) +{ + GstGioSrc *src = GST_GIO_SRC (base_src); + GFileInfo *info; + GError *err = NULL; + + info = g_file_input_stream_query_info (src->stream, + G_FILE_ATTRIBUTE_STD_SIZE, src->cancel, &err); + + if (info != NULL) { + *size = g_file_info_get_size (info); + g_object_unref (info); + GST_DEBUG_OBJECT (src, "found size: %" G_GUINT64_FORMAT, *size); + return TRUE; + } + + if (!gst_gio_error (src, "g_file_input_stream_query_info", &err, NULL)) { + + if (GST_GIO_ERROR_MATCHES (err, NOT_SUPPORTED)) + GST_DEBUG_OBJECT (src, "size information not available"); + else + GST_WARNING_OBJECT (src, "size information retrieval failed: %s", + err->message); + + g_clear_error (&err); + } + + return FALSE; +} + +static gboolean +gst_gio_src_is_seekable (GstBaseSrc * base_src) +{ + GstGioSrc *src = GST_GIO_SRC (base_src); + gboolean seekable; + + seekable = g_seekable_can_seek (G_SEEKABLE (src->stream)); + + GST_DEBUG_OBJECT (src, "can seek: %d", seekable); + + return seekable; +} + +static gboolean +gst_gio_src_unlock (GstBaseSrc * base_src) +{ + GstGioSrc *src = GST_GIO_SRC (base_src); + + GST_LOG_OBJECT (src, "triggering cancellation"); + + g_cancellable_cancel (src->cancel); + + return TRUE; +} + +static gboolean +gst_gio_src_unlock_stop (GstBaseSrc * base_src) +{ + GstGioSrc *src = GST_GIO_SRC (base_src); + + GST_LOG_OBJECT (src, "restoring cancellable"); + + g_object_unref (src->cancel); + src->cancel = g_cancellable_new (); + + return TRUE; +} + +static gboolean +gst_gio_src_check_get_range (GstBaseSrc * base_src) +{ + /* FIXME: Implement dry-run variant using guesswork like gnomevfssrc? */ + + return GST_CALL_PARENT_WITH_DEFAULT (GST_BASE_SRC_CLASS, + check_get_range, (base_src), FALSE); +} + +static GstFlowReturn +gst_gio_src_create (GstBaseSrc * base_src, guint64 offset, guint size, + GstBuffer ** buf_return) +{ + GstGioSrc *src = GST_GIO_SRC (base_src); + GstBuffer *buf; + gssize read; + gboolean success, eos; + GstFlowReturn ret = GST_FLOW_OK; + GError *err = NULL; + + if (G_UNLIKELY (offset != src->position)) { + + ret = gst_gio_seek (src, G_SEEKABLE (src->stream), offset, src->cancel); + + if (ret == GST_FLOW_OK) + src->position = offset; + else + return ret; + } + + buf = gst_buffer_new_and_alloc (size); + + GST_LOG_OBJECT (src, "reading %u bytes from offset %" G_GUINT64_FORMAT, + size, offset); + + read = + g_input_stream_read (G_INPUT_STREAM (src->stream), GST_BUFFER_DATA (buf), + size, src->cancel, &err); + + success = (read >= 0); + eos = (size > 0 && read == 0); + + if (!success && !gst_gio_error (src, "g_input_stream_read", &err, &ret)) { + GST_ELEMENT_ERROR (src, RESOURCE, READ, (NULL), + ("Could not read from location %s: %s", src->location, err->message)); + g_clear_error (&err); + } + + if (success && !eos) { + src->position += read; + GST_BUFFER_OFFSET (buf) = offset; + GST_BUFFER_SIZE (buf) = read; + *buf_return = buf; + } else { + /* !success || eos */ + gst_buffer_unref (buf); + } + + if (eos) + ret = GST_FLOW_UNEXPECTED; + + return ret; +} diff --git a/ext/gio/gstgiosrc.h b/ext/gio/gstgiosrc.h new file mode 100644 index 00000000..d8b64af4 --- /dev/null +++ b/ext/gio/gstgiosrc.h @@ -0,0 +1,65 @@ +/* GStreamer + * + * Copyright (C) 2007 Rene Stadler + * + * 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. + */ + +#ifndef __GSTGIOSRC_H__ +#define __GSTGIOSRC_H__ + +#include "gstgio.h" + +#include +#include + +G_BEGIN_DECLS + +#define GST_TYPE_GIO_SRC \ + (gst_gio_src_get_type()) +#define GST_GIO_SRC(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GIO_SRC,GstGioSrc)) +#define GST_GIO_SRC_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GIO_SRC,GstGioSrcClass)) +#define GST_IS_GIO_SRC(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GIO_SRC)) +#define GST_IS_GIO_SRC_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GIO_SRC)) + +typedef struct _GstGioSrc GstGioSrc; +typedef struct _GstGioSrcClass GstGioSrcClass; + +struct _GstGioSrc +{ + GstBaseSrc src; + + GCancellable *cancel; + GFile *file; + gchar *location; + guint64 position; + GFileInputStream *stream; +}; + +struct _GstGioSrcClass +{ + GstBaseSrcClass parent_class; +}; + +GType gst_gio_src_get_type (void); + +G_END_DECLS + +#endif /* __GSTGIOSRC_H__ */ -- cgit v1.2.1