gstreamer/gst/multifile/gstmultifilesink.c
David Schleef 5fb8c95eb1 Improve documentation, write some tests for multifilesrc/sink for upcoming ->good review.
Original commit message from CVS:
* gst/multifile/Makefile.am:
* gst/multifile/gstmultifilesink.c:
* gst/multifile/gstmultifilesrc.c:
* tests/check/Makefile.am:
* tests/check/elements/multifile.c:
Improve documentation, write some tests for multifilesrc/sink
for upcoming ->good review.
2007-10-25 23:42:52 +00:00

263 lines
6.9 KiB
C

/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
* 2006 Wim Taymans <wim@fluendo.com>
* 2006 David A. Schleef <ds@schleef.org>
*
* gstmultifilesink.c:
*
* 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-multifilesink
* @short_description: Writes buffers to sequentially-named files
* @see_also: #GstFileSrc
*
* <para>
* Write incoming data to a series of sequentially-named files.
* </para>
*
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "gstmultifilesink.h"
static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
GST_DEBUG_CATEGORY_STATIC (gst_multi_file_sink_debug);
#define GST_CAT_DEFAULT gst_multi_file_sink_debug
static const GstElementDetails gst_multi_file_sink_details =
GST_ELEMENT_DETAILS ("Multi-File Sink",
"Sink/File",
"Write stream to a file",
"David Schleef <ds@schleef.org>");
enum
{
ARG_0,
ARG_LOCATION,
ARG_INDEX
};
#define DEFAULT_LOCATION "%05d"
#define DEFAULT_INDEX 0
static void gst_multi_file_sink_dispose (GObject * object);
static void gst_multi_file_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_multi_file_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstFlowReturn gst_multi_file_sink_render (GstBaseSink * sink,
GstBuffer * buffer);
GST_BOILERPLATE (GstMultiFileSink, gst_multi_file_sink, GstBaseSink,
GST_TYPE_BASE_SINK);
static void
gst_multi_file_sink_base_init (gpointer g_class)
{
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
GST_DEBUG_CATEGORY_INIT (gst_multi_file_sink_debug, "multifilesink", 0,
"multifilesink element");
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&sinktemplate));
gst_element_class_set_details (gstelement_class,
&gst_multi_file_sink_details);
}
static void
gst_multi_file_sink_class_init (GstMultiFileSinkClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstBaseSinkClass *gstbasesink_class = GST_BASE_SINK_CLASS (klass);
gobject_class->set_property = gst_multi_file_sink_set_property;
gobject_class->get_property = gst_multi_file_sink_get_property;
g_object_class_install_property (gobject_class, ARG_LOCATION,
g_param_spec_string ("location", "File Location",
"Location of the file to write", NULL, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_INDEX,
g_param_spec_int ("index", "Index",
"Index to use with location property to create file names. The "
"index is incremented by one for each buffer read.",
0, INT_MAX, DEFAULT_INDEX, G_PARAM_READWRITE));
gobject_class->dispose = gst_multi_file_sink_dispose;
gstbasesink_class->get_times = NULL;
gstbasesink_class->render = GST_DEBUG_FUNCPTR (gst_multi_file_sink_render);
if (sizeof (off_t) < 8) {
GST_LOG ("No large file support, sizeof (off_t) = %" G_GSIZE_FORMAT,
sizeof (off_t));
}
}
static void
gst_multi_file_sink_init (GstMultiFileSink * multifilesink,
GstMultiFileSinkClass * g_class)
{
GstPad *pad;
pad = GST_BASE_SINK_PAD (multifilesink);
multifilesink->filename = g_strdup (DEFAULT_LOCATION);
multifilesink->index = DEFAULT_INDEX;
GST_BASE_SINK (multifilesink)->sync = FALSE;
}
static void
gst_multi_file_sink_dispose (GObject * object)
{
GstMultiFileSink *sink = GST_MULTI_FILE_SINK (object);
g_free (sink->filename);
sink->filename = NULL;
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static gboolean
gst_multi_file_sink_set_location (GstMultiFileSink * sink,
const gchar * location)
{
g_free (sink->filename);
if (location != NULL) {
sink->filename = g_strdup (location);
} else {
sink->filename = NULL;
}
return TRUE;
}
static void
gst_multi_file_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstMultiFileSink *sink = GST_MULTI_FILE_SINK (object);
switch (prop_id) {
case ARG_LOCATION:
gst_multi_file_sink_set_location (sink, g_value_get_string (value));
break;
case ARG_INDEX:
sink->index = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_multi_file_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstMultiFileSink *sink = GST_MULTI_FILE_SINK (object);
switch (prop_id) {
case ARG_LOCATION:
g_value_set_string (value, sink->filename);
break;
case ARG_INDEX:
g_value_set_int (value, sink->index);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
#ifdef G_OS_UNIX
# define __GST_STDIO_SEEK_FUNCTION "lseek"
#else
# define __GST_STDIO_SEEK_FUNCTION "fseek"
#endif
static gchar *
gst_multi_file_sink_get_filename (GstMultiFileSink * multifilesink)
{
gchar *filename;
filename = g_strdup_printf (multifilesink->filename, multifilesink->index);
return filename;
}
static GstFlowReturn
gst_multi_file_sink_render (GstBaseSink * sink, GstBuffer * buffer)
{
GstMultiFileSink *multifilesink;
guint size;
gchar *filename;
FILE *file;
size = GST_BUFFER_SIZE (buffer);
multifilesink = GST_MULTI_FILE_SINK (sink);
filename = gst_multi_file_sink_get_filename (multifilesink);
file = fopen (filename, "wb");
if (!file) {
goto handle_error;
}
g_free (filename);
if (size > 0 && GST_BUFFER_DATA (buffer) != NULL) {
if (fwrite (GST_BUFFER_DATA (buffer), size, 1, file) != 1)
goto handle_error;
}
multifilesink->index++;
fclose (file);
return GST_FLOW_OK;
handle_error:
{
switch (errno) {
case ENOSPC:{
GST_ELEMENT_ERROR (multifilesink, RESOURCE, NO_SPACE_LEFT, (NULL),
(NULL));
break;
}
default:{
GST_ELEMENT_ERROR (multifilesink, RESOURCE, WRITE,
("Error while writing to file \"%s\".", multifilesink->filename),
("%s", g_strerror (errno)));
}
}
return GST_FLOW_ERROR;
}
}