From da1b2a0a6fb36e4b22dad54b26cf561ca3c1aad1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= Date: Wed, 7 Nov 2007 15:18:54 +0000 Subject: ext/gio/gstgio.h: Add macro to check if a stream supports seeking. Original commit message from CVS: * ext/gio/gstgio.h: Add macro to check if a stream supports seeking. * ext/gio/Makefile.am: * ext/gio/gstgiobasesink.c: (gst_gio_base_sink_base_init), (gst_gio_base_sink_class_init), (gst_gio_base_sink_init), (gst_gio_base_sink_finalize), (gst_gio_base_sink_start), (gst_gio_base_sink_stop), (gst_gio_base_sink_unlock), (gst_gio_base_sink_unlock_stop), (gst_gio_base_sink_event), (gst_gio_base_sink_render), (gst_gio_base_sink_query), (gst_gio_base_sink_set_stream): * ext/gio/gstgiobasesink.h: * ext/gio/gstgiobasesrc.c: (gst_gio_base_src_base_init), (gst_gio_base_src_class_init), (gst_gio_base_src_init), (gst_gio_base_src_finalize), (gst_gio_base_src_start), (gst_gio_base_src_stop), (gst_gio_base_src_get_size), (gst_gio_base_src_is_seekable), (gst_gio_base_src_unlock), (gst_gio_base_src_unlock_stop), (gst_gio_base_src_check_get_range), (gst_gio_base_src_create), (gst_gio_base_src_set_stream): * ext/gio/gstgiobasesrc.h: Refactor common GIO functions to GstGioBaseSink and GstGioBaseSrc base classes that only require a GInputStream or GOutputStream to work. * 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_start): * 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_start): * ext/gio/gstgiosrc.h: Use the newly created base classes here. * ext/gio/gstgio.c: (plugin_init): * ext/gio/gstgiostreamsink.c: (gst_gio_stream_sink_base_init), (gst_gio_stream_sink_class_init), (gst_gio_stream_sink_init), (gst_gio_stream_sink_finalize), (gst_gio_stream_sink_set_property), (gst_gio_stream_sink_get_property): * ext/gio/gstgiostreamsink.h: * ext/gio/gstgiostreamsrc.c: (gst_gio_stream_src_base_init), (gst_gio_stream_src_class_init), (gst_gio_stream_src_init), (gst_gio_stream_src_finalize), (gst_gio_stream_src_set_property), (gst_gio_stream_src_get_property): * ext/gio/gstgiostreamsrc.h: Implement GstGioStreamSink and GstGioStreamSrc that have a property to set the GInputStream/GOutputStream that should be used. * tests/check/Makefile.am: * tests/check/pipelines/.cvsignore: * tests/check/pipelines/gio.c: (message_handler), (GST_START_TEST), (gio_testsuite), (main): Add unit test for giostreamsrc and giostreamsink. --- ext/gio/gstgiobasesink.c | 334 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 334 insertions(+) create mode 100644 ext/gio/gstgiobasesink.c (limited to 'ext/gio/gstgiobasesink.c') diff --git a/ext/gio/gstgiobasesink.c b/ext/gio/gstgiobasesink.c new file mode 100644 index 00000000..1885b463 --- /dev/null +++ b/ext/gio/gstgiobasesink.c @@ -0,0 +1,334 @@ +/* GStreamer + * + * Copyright (C) 2007 Rene Stadler + * Copyright (C) 2007 Sebastian Dröge + * + * 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 +#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 = TRUE; + GError *err = NULL; + + if (G_IS_OUTPUT_STREAM (sink->stream)) { + /* FIXME: In case that the call below would block, there is no one to + * trigger the cancellation! */ + + success = g_output_stream_close (sink->stream, sink->cancel, &err); + + if (success) { + GST_DEBUG_OBJECT (sink, "closed stream"); + } 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_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: + { + 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: + { + 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; + + 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_GUINT64_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; + 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 (sink->stream) { + GError *err = NULL; + gboolean success = g_output_stream_close (sink->stream, sink->cancel, &err); + + if (success) { + GST_DEBUG_OBJECT (sink, "closed stream"); + } else if (!gst_gio_error (sink, "g_output_stream_close", &err, NULL)) { + GST_WARNING_OBJECT (sink, "g_output_stream_close failed: %s", + err->message); + g_clear_error (&err); + } + + g_object_unref (sink->stream); + sink->stream = NULL; + } + + sink->stream = stream; +} -- cgit v1.2.1