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Original commit message from CVS: * ext/flac/gstflactag.c: (gst_flac_tag_init): * gst/interleave/deinterleave.c: (deinterleave_init), (deinterleave_sink_link): * gst/interleave/interleave.c: (interleave_init): * gst/median/gstmedian.c: (gst_median_init): * gst/oldcore/gstmultifilesrc.c: (gst_multifilesrc_init): Fix memory leaks. * tests/check/elements/id3demux.c: (pad_added_cb): Remove unused variable.
363 lines
11 KiB
C
363 lines
11 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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* 2001 Dominic Ludlam <dom@recoil.org>
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*
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* gstmultifilesrc.c:
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <errno.h>
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#include <string.h>
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "../gst-i18n-lib.h"
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#include "gstmultifilesrc.h"
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static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS_ANY);
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GST_DEBUG_CATEGORY_STATIC (gst_multifilesrc_debug);
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#define GST_CAT_DEFAULT gst_multifilesrc_debug
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static const GstElementDetails gst_multifilesrc_details =
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GST_ELEMENT_DETAILS ("Multi file source",
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"Source/File",
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"Read from multiple files in order",
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"Dominic Ludlam <dom@openfx.org>");
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/* FileSrc signals and args */
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enum
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{
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NEW_FILE,
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LAST_SIGNAL
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};
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enum
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{
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ARG_0,
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ARG_LOCATIONS,
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ARG_HAVENEWMEDIA
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};
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#define _do_init(bla) \
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GST_DEBUG_CATEGORY_INIT (gst_multifilesrc_debug, "multifilesrc", 0, "multifilesrc element");
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GST_BOILERPLATE_FULL (GstMultiFileSrc, gst_multifilesrc, GstElement,
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GST_TYPE_ELEMENT, _do_init);
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static void gst_multifilesrc_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_multifilesrc_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static GstData *gst_multifilesrc_get (GstPad * pad);
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/*static GstBuffer * gst_multifilesrc_get_region (GstPad *pad,GstRegionType type,guint64 offset,guint64 len);*/
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static GstStateChangeReturn gst_multifilesrc_change_state (GstElement *
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element);
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static gboolean gst_multifilesrc_open_file (GstMultiFileSrc * src,
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GstPad * srcpad);
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static void gst_multifilesrc_close_file (GstMultiFileSrc * src);
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static guint gst_multifilesrc_signals[LAST_SIGNAL] = { 0 };
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static void
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gst_multifilesrc_base_init (gpointer g_class)
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{
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GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&srctemplate));
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gst_element_class_set_details (gstelement_class, &gst_multifilesrc_details);
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}
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static void
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gst_multifilesrc_class_init (GstMultiFileSrcClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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gobject_class->set_property = gst_multifilesrc_set_property;
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gobject_class->get_property = gst_multifilesrc_get_property;
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gst_multifilesrc_signals[NEW_FILE] =
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g_signal_new ("new-file", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GstMultiFileSrcClass, new_file), NULL, NULL,
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g_cclosure_marshal_VOID__STRING, G_TYPE_NONE, 1, G_TYPE_STRING);
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LOCATIONS, g_param_spec_pointer ("locations", "locations", "locations", G_PARAM_READWRITE)); /* CHECKME */
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_HAVENEWMEDIA,
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g_param_spec_boolean ("newmedia", "newmedia",
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"generate new media events?", FALSE, G_PARAM_READWRITE));
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gstelement_class->change_state = gst_multifilesrc_change_state;
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}
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static void
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gst_multifilesrc_init (GstMultiFileSrc * multifilesrc,
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GstMultiFileSrcClass * g_class)
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{
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/* GST_OBJECT_FLAG_SET (filesrc, GST_SRC_); */
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multifilesrc->srcpad = gst_pad_new_from_static_template (&srctemplate, "src");
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gst_pad_set_get_function (multifilesrc->srcpad, gst_multifilesrc_get);
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/* gst_pad_set_getregion_function (multifilesrc->srcpad,gst_multifilesrc_get_region); */
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gst_element_add_pad (GST_ELEMENT (multifilesrc), multifilesrc->srcpad);
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multifilesrc->listptr = NULL;
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multifilesrc->currentfilename = NULL;
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multifilesrc->fd = 0;
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multifilesrc->size = 0;
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multifilesrc->map = NULL;
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multifilesrc->new_seek = FALSE;
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multifilesrc->have_newmedia_events = FALSE;
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}
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static void
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gst_multifilesrc_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstMultiFileSrc *src;
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g_return_if_fail (GST_IS_MULTIFILESRC (object));
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src = GST_MULTIFILESRC (object);
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switch (prop_id) {
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case ARG_LOCATIONS:
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/* the element must be stopped in order to do this */
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g_return_if_fail (GST_STATE (src) < GST_STATE_PLAYING);
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/* clear the filename if we get a NULL */
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if (g_value_get_pointer (value) == NULL) {
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gst_element_set_state (GST_ELEMENT (object), GST_STATE_NULL);
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src->listptr = NULL;
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/* otherwise set the new filenames */
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} else {
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src->listptr = g_value_get_pointer (value);
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}
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break;
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case ARG_HAVENEWMEDIA:
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src->have_newmedia_events = g_value_get_boolean (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_multifilesrc_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstMultiFileSrc *src;
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g_return_if_fail (GST_IS_MULTIFILESRC (object));
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src = GST_MULTIFILESRC (object);
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switch (prop_id) {
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case ARG_LOCATIONS:
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g_value_set_pointer (value, src->listptr);
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break;
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case ARG_HAVENEWMEDIA:
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g_value_set_boolean (value, src->have_newmedia_events);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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/**
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* gst_filesrc_get:
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* @pad: #GstPad to push a buffer from
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*
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* Push a new buffer from the filesrc at the current offset.
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*/
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static GstData *
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gst_multifilesrc_get (GstPad * pad)
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{
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GstMultiFileSrc *src;
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GstBuffer *buf;
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GstEvent *newmedia;
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GSList *list;
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g_return_val_if_fail (pad != NULL, NULL);
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src = GST_MULTIFILESRC (gst_pad_get_parent (pad));
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GST_DEBUG ("curfileindex = %d newmedia flag = %s", src->curfileindex,
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GST_OBJECT_FLAG_IS_SET (src,
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GST_MULTIFILESRC_NEWFILE) ? "true" : "false");
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switch (GST_OBJECT_FLAG_IS_SET (src, GST_MULTIFILESRC_NEWFILE)) {
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case FALSE:
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if (GST_OBJECT_FLAG_IS_SET (src, GST_MULTIFILESRC_OPEN))
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gst_multifilesrc_close_file (src);
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if (!src->listptr) {
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GST_DEBUG ("sending EOS event");
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gst_element_set_eos (GST_ELEMENT (src));
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return GST_DATA (gst_event_new (GST_EVENT_EOS));
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}
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list = src->listptr;
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src->currentfilename = (gchar *) list->data;
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src->listptr = src->listptr->next;
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if (!gst_multifilesrc_open_file (src, pad))
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return NULL;
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src->curfileindex++;
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/* emitted after the open, as the user may free the list and string from here */
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g_signal_emit (G_OBJECT (src), gst_multifilesrc_signals[NEW_FILE], 0,
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list);
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if (src->have_newmedia_events) {
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newmedia =
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gst_event_new_discontinuous (TRUE, GST_FORMAT_TIME, (gint64) 0,
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GST_FORMAT_UNDEFINED);
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GST_OBJECT_FLAG_SET (src, GST_MULTIFILESRC_NEWFILE);
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GST_DEBUG ("sending new media event");
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return GST_DATA (newmedia);
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}
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default:
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if (GST_OBJECT_FLAG_IS_SET (src, GST_MULTIFILESRC_NEWFILE))
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GST_OBJECT_FLAG_UNSET (src, GST_MULTIFILESRC_NEWFILE);
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/* create the buffer */
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/* FIXME: should eventually use a bufferpool for this */
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buf = gst_buffer_new ();
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g_return_val_if_fail (buf != NULL, NULL);
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/* simply set the buffer to point to the correct region of the file */
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GST_BUFFER_DATA (buf) = src->map;
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GST_BUFFER_SIZE (buf) = src->size;
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GST_BUFFER_OFFSET (buf) = 0;
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GST_BUFFER_FLAG_SET (buf, GST_BUFFER_DONTFREE);
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if (src->new_seek) {
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/* fixme, do something here */
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src->new_seek = FALSE;
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}
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/* we're done, return the buffer */
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GST_DEBUG ("sending buffer");
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return GST_DATA (buf);
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}
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/* should not reach here */
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g_assert_not_reached ();
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return NULL;
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}
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/* open the file and mmap it, necessary to go to READY state */
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static gboolean
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gst_multifilesrc_open_file (GstMultiFileSrc * src, GstPad * srcpad)
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{
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g_return_val_if_fail (!GST_OBJECT_FLAG_IS_SET (src, GST_MULTIFILESRC_OPEN),
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FALSE);
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if (src->currentfilename == NULL || src->currentfilename[0] == '\0') {
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GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND,
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(_("No file name specified for reading.")), (NULL));
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return FALSE;
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}
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/* open the file. FIXME: do we need to use O_LARGEFILE here? */
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src->fd = open ((const char *) src->currentfilename, O_RDONLY);
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if (src->fd < 0) {
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GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
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(_("Could not open file \"%s\" for reading."), src->currentfilename),
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GST_ERROR_SYSTEM);
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return FALSE;
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} else {
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/* find the file length */
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src->size = lseek (src->fd, 0, SEEK_END);
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lseek (src->fd, 0, SEEK_SET);
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/* map the file into memory.
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* FIXME: don't map the whole file at once, there might
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* be restrictions set. Get max size via getrlimit
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* or re-try with smaller size if mmap fails with ENOMEM? */
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src->map = mmap (NULL, src->size, PROT_READ, MAP_SHARED, src->fd, 0);
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madvise (src->map, src->size, MADV_SEQUENTIAL);
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/* collapse state if that failed */
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if (src->map == NULL) {
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close (src->fd);
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GST_ELEMENT_ERROR (src, RESOURCE, TOO_LAZY, (NULL),
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("mmap call failed."));
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return FALSE;
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}
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GST_OBJECT_FLAG_SET (src, GST_MULTIFILESRC_OPEN);
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src->new_seek = TRUE;
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}
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return TRUE;
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}
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/* unmap and close the file */
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static void
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gst_multifilesrc_close_file (GstMultiFileSrc * src)
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{
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g_return_if_fail (GST_OBJECT_FLAG_IS_SET (src, GST_MULTIFILESRC_OPEN));
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/* unmap the file from memory and close the file */
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munmap (src->map, src->size);
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close (src->fd);
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/* zero out a lot of our state */
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src->fd = 0;
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src->size = 0;
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src->map = NULL;
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src->new_seek = FALSE;
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GST_OBJECT_FLAG_UNSET (src, GST_MULTIFILESRC_OPEN);
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}
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static GstStateChangeReturn
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gst_multifilesrc_change_state (GstElement * element, GstStateChange transition)
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{
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g_return_val_if_fail (GST_IS_MULTIFILESRC (element),
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GST_STATE_CHANGE_FAILURE);
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if (GST_STATE_PENDING (element) == GST_STATE_NULL) {
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if (GST_OBJECT_FLAG_IS_SET (element, GST_MULTIFILESRC_OPEN))
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gst_multifilesrc_close_file (GST_MULTIFILESRC (element));
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}
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if (GST_ELEMENT_CLASS (parent_class)->change_state)
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return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
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return GST_STATE_CHANGE_SUCCESS;
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}
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