gstreamer/plugins/elements/gstfilesink.c
Sebastian Dröge 67a92e45a2 plugins/elements/: Also check for an absolute path following file:// in the filesrc element. Remove redundant check a...
Original commit message from CVS:
* plugins/elements/gstfilesink.c: (gst_file_sink_uri_set_uri):
* plugins/elements/gstfilesrc.c: (gst_file_src_uri_set_uri):
Also check for an absolute path following file:// in the filesrc
element. Remove redundant check and call g_path_is_absolute() on the
unescaped location.
2007-02-13 13:40:05 +00:00

582 lines
15 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>
*
* gstfilesink.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-filesink
* @short_description: write stream to a file
* @see_also: #GstFileSrc
*
* Write incoming data to a file in the local file system.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "../../gst/gst-i18n-lib.h"
#include <gst/gst.h>
#include <stdio.h> /* for fseeko() */
#include <errno.h>
#include "gstfilesink.h"
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
GST_DEBUG_CATEGORY_STATIC (gst_file_sink_debug);
#define GST_CAT_DEFAULT gst_file_sink_debug
static const GstElementDetails gst_file_sink_details =
GST_ELEMENT_DETAILS ("File Sink",
"Sink/File",
"Write stream to a file",
"Thomas <thomas@apestaart.org>");
enum
{
ARG_0,
ARG_LOCATION
};
static void gst_file_sink_dispose (GObject * object);
static void gst_file_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_file_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static gboolean gst_file_sink_open_file (GstFileSink * sink);
static void gst_file_sink_close_file (GstFileSink * sink);
static gboolean gst_file_sink_start (GstBaseSink * sink);
static gboolean gst_file_sink_stop (GstBaseSink * sink);
static gboolean gst_file_sink_event (GstBaseSink * sink, GstEvent * event);
static GstFlowReturn gst_file_sink_render (GstBaseSink * sink,
GstBuffer * buffer);
static gboolean gst_file_sink_do_seek (GstFileSink * filesink,
guint64 new_offset);
static gboolean gst_file_sink_query (GstPad * pad, GstQuery * query);
static void gst_file_sink_uri_handler_init (gpointer g_iface,
gpointer iface_data);
static void
_do_init (GType filesink_type)
{
static const GInterfaceInfo urihandler_info = {
gst_file_sink_uri_handler_init,
NULL,
NULL
};
g_type_add_interface_static (filesink_type, GST_TYPE_URI_HANDLER,
&urihandler_info);
GST_DEBUG_CATEGORY_INIT (gst_file_sink_debug, "filesink", 0,
"filesink element");
}
GST_BOILERPLATE_FULL (GstFileSink, gst_file_sink, GstBaseSink,
GST_TYPE_BASE_SINK, _do_init);
static void
gst_file_sink_base_init (gpointer g_class)
{
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&sinktemplate));
gst_element_class_set_details (gstelement_class, &gst_file_sink_details);
}
static void
gst_file_sink_class_init (GstFileSinkClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstBaseSinkClass *gstbasesink_class = GST_BASE_SINK_CLASS (klass);
gobject_class->set_property = gst_file_sink_set_property;
gobject_class->get_property = gst_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));
gobject_class->dispose = gst_file_sink_dispose;
gstbasesink_class->get_times = NULL;
gstbasesink_class->start = GST_DEBUG_FUNCPTR (gst_file_sink_start);
gstbasesink_class->stop = GST_DEBUG_FUNCPTR (gst_file_sink_stop);
gstbasesink_class->render = GST_DEBUG_FUNCPTR (gst_file_sink_render);
gstbasesink_class->event = GST_DEBUG_FUNCPTR (gst_file_sink_event);
if (sizeof (off_t) < 8) {
GST_LOG ("No large file support, sizeof (off_t) = %" G_GSIZE_FORMAT "!",
sizeof (off_t));
}
}
static void
gst_file_sink_init (GstFileSink * filesink, GstFileSinkClass * g_class)
{
GstPad *pad;
pad = GST_BASE_SINK_PAD (filesink);
gst_pad_set_query_function (pad, GST_DEBUG_FUNCPTR (gst_file_sink_query));
filesink->filename = NULL;
filesink->file = NULL;
gst_base_sink_set_sync (GST_BASE_SINK (filesink), FALSE);
}
static void
gst_file_sink_dispose (GObject * object)
{
GstFileSink *sink = GST_FILE_SINK (object);
G_OBJECT_CLASS (parent_class)->dispose (object);
g_free (sink->uri);
sink->uri = NULL;
g_free (sink->filename);
sink->filename = NULL;
}
static gboolean
gst_file_sink_set_location (GstFileSink * sink, const gchar * location)
{
if (sink->file)
goto was_open;
g_free (sink->filename);
g_free (sink->uri);
if (location != NULL) {
sink->filename = g_strdup (location);
sink->uri = gst_uri_construct ("file", location);
} else {
sink->filename = NULL;
sink->uri = NULL;
}
return TRUE;
/* ERRORS */
was_open:
{
g_warning ("Changing the `location' property on filesink when "
"a file is open not supported.");
return FALSE;
}
}
static void
gst_file_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstFileSink *sink = GST_FILE_SINK (object);
switch (prop_id) {
case ARG_LOCATION:
gst_file_sink_set_location (sink, g_value_get_string (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_file_sink_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstFileSink *sink = GST_FILE_SINK (object);
switch (prop_id) {
case ARG_LOCATION:
g_value_set_string (value, sink->filename);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_file_sink_open_file (GstFileSink * sink)
{
/* open the file */
if (sink->filename == NULL || sink->filename[0] == '\0')
goto no_filename;
sink->file = fopen (sink->filename, "wb");
if (sink->file == NULL)
goto open_failed;
sink->data_written = 0;
/* try to seek in the file to figure out if it is seekable */
sink->seekable = gst_file_sink_do_seek (sink, 0);
GST_DEBUG_OBJECT (sink, "opened file %s, seekable %d",
sink->filename, sink->seekable);
return TRUE;
/* ERRORS */
no_filename:
{
GST_ELEMENT_ERROR (sink, RESOURCE, NOT_FOUND,
(_("No file name specified for writing.")), (NULL));
return FALSE;
}
open_failed:
{
GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_WRITE,
(_("Could not open file \"%s\" for writing."), sink->filename),
GST_ERROR_SYSTEM);
return FALSE;
}
}
static void
gst_file_sink_close_file (GstFileSink * sink)
{
if (sink->file) {
if (fclose (sink->file) != 0)
goto close_failed;
GST_DEBUG_OBJECT (sink, "closed file");
sink->file = NULL;
}
return;
/* ERRORS */
close_failed:
{
GST_ELEMENT_ERROR (sink, RESOURCE, CLOSE,
(_("Error closing file \"%s\"."), sink->filename), GST_ERROR_SYSTEM);
return;
}
}
static gboolean
gst_file_sink_query (GstPad * pad, GstQuery * query)
{
GstFileSink *self;
GstFormat format;
self = GST_FILE_SINK (GST_PAD_PARENT (pad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
gst_query_parse_position (query, &format, NULL);
switch (format) {
case GST_FORMAT_DEFAULT:
case GST_FORMAT_BYTES:
gst_query_set_position (query, GST_FORMAT_BYTES, self->data_written);
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);
}
}
#if HAVE_FSEEKO
# define __GST_STDIO_SEEK_FUNCTION "fseeko"
#elif G_OS_UNIX
# define __GST_STDIO_SEEK_FUNCTION "lseek"
#else
# define __GST_STDIO_SEEK_FUNCTION "fseek"
#endif
static gboolean
gst_file_sink_do_seek (GstFileSink * filesink, guint64 new_offset)
{
GST_DEBUG_OBJECT (filesink, "Seeking to offset %" G_GUINT64_FORMAT
" using " __GST_STDIO_SEEK_FUNCTION, new_offset);
if (fflush (filesink->file))
goto flush_failed;
#if HAVE_FSEEKO
if (fseeko (filesink->file, (off_t) new_offset, SEEK_SET) != 0)
goto seek_failed;
#elif G_OS_UNIX
if (lseek (fileno (filesink->file), (off_t) new_offset,
SEEK_SET) == (off_t) - 1)
goto seek_failed;
#else
if (fseek (filesink->file, (long) new_offset, SEEK_SET) != 0)
goto seek_failed;
#endif
return TRUE;
/* ERRORS */
flush_failed:
{
GST_DEBUG_OBJECT (filesink, "Flush failed: %s", g_strerror (errno));
return FALSE;
}
seek_failed:
{
GST_DEBUG_OBJECT (filesink, "Seeking failed: %s", g_strerror (errno));
return FALSE;
}
}
/* handle events (search) */
static gboolean
gst_file_sink_event (GstBaseSink * sink, GstEvent * event)
{
GstEventType type;
GstFileSink *filesink;
filesink = GST_FILE_SINK (sink);
type = GST_EVENT_TYPE (event);
switch (type) {
case GST_EVENT_NEWSEGMENT:
{
gint64 start, stop, pos;
GstFormat format;
gst_event_parse_new_segment (event, NULL, NULL, &format, &start,
&stop, &pos);
if (format == GST_FORMAT_BYTES) {
/* FIXME, the seek should be performed on the pos field, start/stop are
* just boundaries for valid bytes offsets. We should also fill the file
* with zeroes if the new position extends the current EOF (sparse streams
* and segment accumulation). */
if (!gst_file_sink_do_seek (filesink, (guint64) start))
goto seek_failed;
} else {
GST_DEBUG ("Ignored NEWSEGMENT event of format %u (%s)",
(guint) format, gst_format_get_name (format));
}
break;
}
case GST_EVENT_EOS:
if (fflush (filesink->file))
goto flush_failed;
break;
default:
break;
}
return TRUE;
/* ERRORS */
seek_failed:
{
GST_ELEMENT_ERROR (filesink, RESOURCE, SEEK,
(_("Error while seeking in file \"%s\"."), filesink->filename),
GST_ERROR_SYSTEM);
return FALSE;
}
flush_failed:
{
GST_ELEMENT_ERROR (filesink, RESOURCE, WRITE,
(_("Error while writing to file \"%s\"."), filesink->filename),
GST_ERROR_SYSTEM);
return FALSE;
}
}
static gboolean
gst_file_sink_get_current_offset (GstFileSink * filesink, guint64 * p_pos)
{
off_t ret;
#if HAVE_FTELLO
ret = ftello (filesink->file);
#elif G_OS_UNIX
if (fflush (filesink->file)) {
GST_DEBUG_OBJECT (filesink, "Flush failed: %s", g_strerror (errno));
/* ignore and continue */
}
ret = lseek (fileno (filesink->file), 0, SEEK_CUR);
#else
ret = (off_t) ftell (filesink->file);
#endif
*p_pos = (guint64) ret;
return (ret != (off_t) - 1);
}
static GstFlowReturn
gst_file_sink_render (GstBaseSink * sink, GstBuffer * buffer)
{
GstFileSink *filesink;
guint64 cur_pos;
guint size;
guint64 back_pending = 0;
size = GST_BUFFER_SIZE (buffer);
filesink = GST_FILE_SINK (sink);
if (filesink->seekable) {
if (!gst_file_sink_get_current_offset (filesink, &cur_pos))
goto handle_error;
} else {
cur_pos = filesink->data_written;
}
if (cur_pos < filesink->data_written)
back_pending = filesink->data_written - cur_pos;
GST_DEBUG_OBJECT (filesink, "writing %u bytes at %" G_GUINT64_FORMAT,
size, cur_pos);
if (size > 0 && GST_BUFFER_DATA (buffer) != NULL) {
if (fwrite (GST_BUFFER_DATA (buffer), size, 1, filesink->file) != 1)
goto handle_error;
filesink->data_written += size - back_pending;
}
return GST_FLOW_OK;
handle_error:
{
switch (errno) {
case ENOSPC:{
GST_ELEMENT_ERROR (filesink, RESOURCE, NO_SPACE_LEFT, (NULL), (NULL));
break;
}
default:{
GST_ELEMENT_ERROR (filesink, RESOURCE, WRITE,
(_("Error while writing to file \"%s\"."), filesink->filename),
("%s", g_strerror (errno)));
}
}
return GST_FLOW_ERROR;
}
}
static gboolean
gst_file_sink_start (GstBaseSink * basesink)
{
return gst_file_sink_open_file (GST_FILE_SINK (basesink));
}
static gboolean
gst_file_sink_stop (GstBaseSink * basesink)
{
gst_file_sink_close_file (GST_FILE_SINK (basesink));
return TRUE;
}
/*** GSTURIHANDLER INTERFACE *************************************************/
static GstURIType
gst_file_sink_uri_get_type (void)
{
return GST_URI_SINK;
}
static gchar **
gst_file_sink_uri_get_protocols (void)
{
static gchar *protocols[] = { "file", NULL };
return protocols;
}
static const gchar *
gst_file_sink_uri_get_uri (GstURIHandler * handler)
{
GstFileSink *sink = GST_FILE_SINK (handler);
return sink->uri;
}
static gboolean
gst_file_sink_uri_set_uri (GstURIHandler * handler, const gchar * uri)
{
gchar *protocol, *location;
gboolean ret;
GstFileSink *sink = GST_FILE_SINK (handler);
protocol = gst_uri_get_protocol (uri);
if (strcmp (protocol, "file") != 0) {
g_free (protocol);
return FALSE;
}
g_free (protocol);
/* allow file://localhost/foo/bar by stripping localhost but fail
* for every other hostname */
if (g_str_has_prefix (uri, "file://localhost/")) {
char *tmp;
/* 16 == strlen ("file://localhost") */
tmp = g_strconcat ("file://", uri + 16, NULL);
/* we use gst_uri_get_location() although we already have the
* "location" with uri + 16 because it provides unescaping */
location = gst_uri_get_location (tmp);
g_free (tmp);
} else {
location = gst_uri_get_location (uri);
if (!location)
return FALSE;
if (!g_path_is_absolute (location)) {
g_free (location);
return FALSE;
}
}
ret = gst_file_sink_set_location (sink, location);
g_free (location);
return ret;
}
static void
gst_file_sink_uri_handler_init (gpointer g_iface, gpointer iface_data)
{
GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
iface->get_type = gst_file_sink_uri_get_type;
iface->get_protocols = gst_file_sink_uri_get_protocols;
iface->get_uri = gst_file_sink_uri_get_uri;
iface->set_uri = gst_file_sink_uri_set_uri;
}