mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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4a6c2e6720
When stopping the element, make sure the pad task is stopped before destroying the part readers. Closes a race where the pad task might access a freed pointer. Also add a guard against this sort of thing by holding a ref to the reader in the pad loop. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2901>
1559 lines
46 KiB
C
1559 lines
46 KiB
C
/* GStreamer Split Demuxer bin that recombines files created by
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* the splitmuxsink element.
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*
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* Copyright (C) <2014> Jan Schmidt <jan@centricular.com>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:element-splitmuxsrc
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* @title: splitmuxsrc
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* @short_description: Split Demuxer bin that recombines files created by
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* the splitmuxsink element.
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*
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* This element reads a set of input files created by the splitmuxsink element
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* containing contiguous elementary streams split across multiple files.
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*
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* This element is similar to splitfilesrc, except that it recombines the
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* streams in each file part at the demuxed elementary level, rather than
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* as a single larger bytestream.
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*
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* ## Example pipelines
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* |[
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* gst-launch-1.0 splitmuxsrc location=video*.mov ! decodebin ! xvimagesink
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* ]| Demux each file part and output the video stream as one continuous stream
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* |[
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* gst-launch-1.0 playbin uri="splitmux://path/to/foo.mp4.*"
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* ]| Play back a set of files created by splitmuxsink
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*
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*/
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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 <string.h>
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#include "gstsplitmuxsrc.h"
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#include "gstsplitutils.h"
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#include <glib/gi18n-lib.h>
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GST_DEBUG_CATEGORY (splitmux_debug);
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#define GST_CAT_DEFAULT splitmux_debug
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#define FIXED_TS_OFFSET (1000*GST_SECOND)
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enum
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{
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PROP_0,
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PROP_LOCATION
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};
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enum
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{
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SIGNAL_FORMAT_LOCATION,
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SIGNAL_LAST
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};
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static guint signals[SIGNAL_LAST];
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static GstStaticPadTemplate video_src_template =
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GST_STATIC_PAD_TEMPLATE ("video",
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GST_PAD_SRC,
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GST_PAD_SOMETIMES,
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GST_STATIC_CAPS_ANY);
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static GstStaticPadTemplate video_aux_src_template =
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GST_STATIC_PAD_TEMPLATE ("video_%u",
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GST_PAD_SRC,
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GST_PAD_SOMETIMES,
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GST_STATIC_CAPS_ANY);
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static GstStaticPadTemplate audio_src_template =
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GST_STATIC_PAD_TEMPLATE ("audio_%u",
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GST_PAD_SRC,
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GST_PAD_SOMETIMES,
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GST_STATIC_CAPS_ANY);
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static GstStaticPadTemplate subtitle_src_template =
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GST_STATIC_PAD_TEMPLATE ("subtitle_%u",
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GST_PAD_SRC,
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GST_PAD_SOMETIMES,
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GST_STATIC_CAPS_ANY);
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static GstStateChangeReturn gst_splitmux_src_change_state (GstElement *
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element, GstStateChange transition);
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static void gst_splitmux_src_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_splitmux_src_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_splitmux_src_dispose (GObject * object);
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static void gst_splitmux_src_finalize (GObject * object);
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static gboolean gst_splitmux_src_start (GstSplitMuxSrc * splitmux);
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static gboolean gst_splitmux_src_stop (GstSplitMuxSrc * splitmux);
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static void splitmux_src_pad_constructed (GObject * pad);
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static gboolean splitmux_src_pad_event (GstPad * pad, GstObject * parent,
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GstEvent * event);
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static gboolean splitmux_src_pad_query (GstPad * pad, GstObject * parent,
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GstQuery * query);
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static void splitmux_src_uri_handler_init (gpointer g_iface,
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gpointer iface_data);
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static GstPad *gst_splitmux_find_output_pad (GstSplitMuxPartReader * part,
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GstPad * pad, GstSplitMuxSrc * splitmux);
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static gboolean gst_splitmux_end_of_part (GstSplitMuxSrc * splitmux,
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SplitMuxSrcPad * pad);
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static gboolean gst_splitmux_check_new_caps (SplitMuxSrcPad * splitpad,
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GstEvent * event);
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static gboolean gst_splitmux_src_prepare_next_part (GstSplitMuxSrc * splitmux);
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static gboolean gst_splitmux_src_activate_part (GstSplitMuxSrc * splitmux,
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guint part, GstSeekFlags extra_flags);
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#define _do_init \
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G_IMPLEMENT_INTERFACE(GST_TYPE_URI_HANDLER, splitmux_src_uri_handler_init); \
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GST_DEBUG_CATEGORY_INIT (splitmux_debug, "splitmuxsrc", 0, "Split File Demuxing Source");
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#define gst_splitmux_src_parent_class parent_class
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G_DEFINE_TYPE_EXTENDED (GstSplitMuxSrc, gst_splitmux_src, GST_TYPE_BIN, 0,
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_do_init);
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GST_ELEMENT_REGISTER_DEFINE (splitmuxsrc, "splitmuxsrc", GST_RANK_NONE,
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GST_TYPE_SPLITMUX_SRC);
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static GstURIType
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splitmux_src_uri_get_type (GType type)
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{
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return GST_URI_SRC;
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}
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static const gchar *const *
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splitmux_src_uri_get_protocols (GType type)
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{
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static const gchar *protocols[] = { "splitmux", NULL };
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return protocols;
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}
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static gchar *
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splitmux_src_uri_get_uri (GstURIHandler * handler)
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{
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GstSplitMuxSrc *splitmux = GST_SPLITMUX_SRC (handler);
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gchar *ret = NULL;
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GST_OBJECT_LOCK (splitmux);
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if (splitmux->location)
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ret = g_strdup_printf ("splitmux://%s", splitmux->location);
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GST_OBJECT_UNLOCK (splitmux);
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return ret;
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}
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static gboolean
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splitmux_src_uri_set_uri (GstURIHandler * handler, const gchar * uri,
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GError ** err)
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{
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GstSplitMuxSrc *splitmux = GST_SPLITMUX_SRC (handler);
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gchar *protocol, *location;
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protocol = gst_uri_get_protocol (uri);
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if (protocol == NULL || !g_str_equal (protocol, "splitmux"))
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goto wrong_uri;
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g_free (protocol);
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location = gst_uri_get_location (uri);
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GST_OBJECT_LOCK (splitmux);
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g_free (splitmux->location);
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splitmux->location = location;
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GST_OBJECT_UNLOCK (splitmux);
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return TRUE;
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wrong_uri:
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g_free (protocol);
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GST_ELEMENT_ERROR (splitmux, RESOURCE, READ, (NULL),
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("Error parsing uri %s", uri));
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g_set_error_literal (err, GST_URI_ERROR, GST_URI_ERROR_BAD_URI,
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"Could not parse splitmux URI");
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return FALSE;
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}
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static void
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splitmux_src_uri_handler_init (gpointer g_iface, gpointer iface_data)
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{
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GstURIHandlerInterface *iface = (GstURIHandlerInterface *) (g_iface);
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iface->get_type = splitmux_src_uri_get_type;
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iface->get_protocols = splitmux_src_uri_get_protocols;
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iface->set_uri = splitmux_src_uri_set_uri;
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iface->get_uri = splitmux_src_uri_get_uri;
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}
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static void
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gst_splitmux_src_class_init (GstSplitMuxSrcClass * klass)
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{
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GObjectClass *gobject_class = (GObjectClass *) klass;
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GstElementClass *gstelement_class = (GstElementClass *) klass;
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gobject_class->set_property = gst_splitmux_src_set_property;
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gobject_class->get_property = gst_splitmux_src_get_property;
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gobject_class->dispose = gst_splitmux_src_dispose;
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gobject_class->finalize = gst_splitmux_src_finalize;
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gst_element_class_set_static_metadata (gstelement_class,
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"Split File Demuxing Bin", "Generic/Bin/Demuxer",
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"Source that reads a set of files created by splitmuxsink",
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"Jan Schmidt <jan@centricular.com>");
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gst_element_class_add_static_pad_template (gstelement_class,
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&video_src_template);
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gst_element_class_add_static_pad_template (gstelement_class,
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&video_aux_src_template);
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gst_element_class_add_static_pad_template (gstelement_class,
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&audio_src_template);
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gst_element_class_add_static_pad_template (gstelement_class,
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&subtitle_src_template);
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gstelement_class->change_state =
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GST_DEBUG_FUNCPTR (gst_splitmux_src_change_state);
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g_object_class_install_property (gobject_class, PROP_LOCATION,
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g_param_spec_string ("location", "File Input Pattern",
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"Glob pattern for the location of the files to read", NULL,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstSplitMuxSrc::format-location:
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* @splitmux: the #GstSplitMuxSrc
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*
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* Returns: A NULL-terminated sorted array of strings containing the
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* filenames of the input files. The array will be freed internally
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* using g_strfreev()
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*
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* Since: 1.8
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*/
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signals[SIGNAL_FORMAT_LOCATION] =
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g_signal_new ("format-location", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL, G_TYPE_STRV, 0);
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}
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static void
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gst_splitmux_src_init (GstSplitMuxSrc * splitmux)
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{
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g_mutex_init (&splitmux->lock);
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g_rw_lock_init (&splitmux->pads_rwlock);
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splitmux->total_duration = GST_CLOCK_TIME_NONE;
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gst_segment_init (&splitmux->play_segment, GST_FORMAT_TIME);
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}
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static void
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gst_splitmux_src_dispose (GObject * object)
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{
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GstSplitMuxSrc *splitmux = GST_SPLITMUX_SRC (object);
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GList *cur;
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SPLITMUX_SRC_PADS_WLOCK (splitmux);
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for (cur = g_list_first (splitmux->pads);
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cur != NULL; cur = g_list_next (cur)) {
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GstPad *pad = GST_PAD (cur->data);
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gst_element_remove_pad (GST_ELEMENT (splitmux), pad);
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}
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g_list_free (splitmux->pads);
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splitmux->n_pads = 0;
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splitmux->pads = NULL;
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SPLITMUX_SRC_PADS_WUNLOCK (splitmux);
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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gst_splitmux_src_finalize (GObject * object)
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{
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GstSplitMuxSrc *splitmux = GST_SPLITMUX_SRC (object);
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g_mutex_clear (&splitmux->lock);
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g_rw_lock_clear (&splitmux->pads_rwlock);
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g_free (splitmux->location);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gst_splitmux_src_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstSplitMuxSrc *splitmux = GST_SPLITMUX_SRC (object);
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switch (prop_id) {
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case PROP_LOCATION:{
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GST_OBJECT_LOCK (splitmux);
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g_free (splitmux->location);
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splitmux->location = g_value_dup_string (value);
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GST_OBJECT_UNLOCK (splitmux);
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break;
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}
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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_splitmux_src_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstSplitMuxSrc *splitmux = GST_SPLITMUX_SRC (object);
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switch (prop_id) {
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case PROP_LOCATION:
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GST_OBJECT_LOCK (splitmux);
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g_value_set_string (value, splitmux->location);
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GST_OBJECT_UNLOCK (splitmux);
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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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do_async_start (GstSplitMuxSrc * splitmux)
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{
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GstMessage *message;
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SPLITMUX_SRC_MSG_LOCK (splitmux);
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splitmux->async_pending = TRUE;
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message = gst_message_new_async_start (GST_OBJECT_CAST (splitmux));
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GST_BIN_CLASS (parent_class)->handle_message (GST_BIN_CAST (splitmux),
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message);
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SPLITMUX_SRC_MSG_UNLOCK (splitmux);
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}
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static void
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do_async_done (GstSplitMuxSrc * splitmux)
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{
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GstMessage *message;
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SPLITMUX_SRC_MSG_LOCK (splitmux);
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if (splitmux->async_pending) {
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message =
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gst_message_new_async_done (GST_OBJECT_CAST (splitmux),
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GST_CLOCK_TIME_NONE);
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GST_BIN_CLASS (parent_class)->handle_message (GST_BIN_CAST (splitmux),
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message);
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splitmux->async_pending = FALSE;
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}
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SPLITMUX_SRC_MSG_UNLOCK (splitmux);
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}
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static GstStateChangeReturn
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gst_splitmux_src_change_state (GstElement * element, GstStateChange transition)
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{
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GstStateChangeReturn ret;
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GstSplitMuxSrc *splitmux = (GstSplitMuxSrc *) element;
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switch (transition) {
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case GST_STATE_CHANGE_NULL_TO_READY:{
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break;
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}
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case GST_STATE_CHANGE_READY_TO_PAUSED:{
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do_async_start (splitmux);
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if (!gst_splitmux_src_start (splitmux)) {
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do_async_done (splitmux);
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return GST_STATE_CHANGE_FAILURE;
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}
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break;
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}
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case GST_STATE_CHANGE_PAUSED_TO_READY:
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case GST_STATE_CHANGE_READY_TO_NULL:
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/* Make sure the element will shut down */
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if (!gst_splitmux_src_stop (splitmux))
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return GST_STATE_CHANGE_FAILURE;
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break;
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default:
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break;
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}
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ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
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if (ret == GST_STATE_CHANGE_FAILURE) {
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do_async_done (splitmux);
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return ret;
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}
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|
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switch (transition) {
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case GST_STATE_CHANGE_READY_TO_PAUSED:
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ret = GST_STATE_CHANGE_ASYNC;
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break;
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default:
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break;
|
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}
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|
|
|
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return ret;
|
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}
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|
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static void
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gst_splitmux_src_activate_first_part (GstSplitMuxSrc * splitmux)
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{
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SPLITMUX_SRC_LOCK (splitmux);
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if (splitmux->running) {
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if (!gst_splitmux_src_activate_part (splitmux, 0, GST_SEEK_FLAG_NONE)) {
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GST_ELEMENT_ERROR (splitmux, RESOURCE, OPEN_READ, (NULL),
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("Failed to activate first part for playback"));
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}
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}
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SPLITMUX_SRC_UNLOCK (splitmux);
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}
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|
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static GstBusSyncReply
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gst_splitmux_part_bus_handler (GstBus * bus, GstMessage * msg,
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gpointer user_data)
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{
|
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GstSplitMuxSrc *splitmux = user_data;
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|
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switch (GST_MESSAGE_TYPE (msg)) {
|
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case GST_MESSAGE_ASYNC_DONE:{
|
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guint idx = splitmux->num_prepared_parts;
|
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gboolean need_no_more_pads;
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|
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if (idx >= splitmux->num_parts) {
|
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/* Shouldn't really happen! */
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do_async_done (splitmux);
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g_warn_if_reached ();
|
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break;
|
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}
|
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|
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GST_DEBUG_OBJECT (splitmux, "Prepared file part %s (%u)",
|
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splitmux->parts[idx]->path, idx);
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|
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/* signal no-more-pads as we have all pads at this point now */
|
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SPLITMUX_SRC_LOCK (splitmux);
|
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need_no_more_pads = !splitmux->pads_complete;
|
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splitmux->pads_complete = TRUE;
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SPLITMUX_SRC_UNLOCK (splitmux);
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|
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if (need_no_more_pads) {
|
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GST_DEBUG_OBJECT (splitmux, "Signalling no-more-pads");
|
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gst_element_no_more_pads (GST_ELEMENT_CAST (splitmux));
|
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}
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|
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/* Extend our total duration to cover this part */
|
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GST_OBJECT_LOCK (splitmux);
|
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splitmux->total_duration +=
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gst_splitmux_part_reader_get_duration (splitmux->parts[idx]);
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splitmux->play_segment.duration = splitmux->total_duration;
|
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GST_OBJECT_UNLOCK (splitmux);
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|
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splitmux->end_offset =
|
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gst_splitmux_part_reader_get_end_offset (splitmux->parts[idx]);
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|
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GST_DEBUG_OBJECT (splitmux,
|
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"Duration %" GST_TIME_FORMAT ", total duration now: %" GST_TIME_FORMAT
|
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" and end offset %" GST_TIME_FORMAT,
|
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GST_TIME_ARGS (gst_splitmux_part_reader_get_duration (splitmux->parts
|
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[idx])), GST_TIME_ARGS (splitmux->total_duration),
|
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GST_TIME_ARGS (splitmux->end_offset));
|
|
|
|
splitmux->num_prepared_parts++;
|
|
|
|
/* If we're done or preparing the next part fails, finish here */
|
|
if (splitmux->num_prepared_parts >= splitmux->num_parts
|
|
|| !gst_splitmux_src_prepare_next_part (splitmux)) {
|
|
/* Store how many parts we actually prepared in the end */
|
|
splitmux->num_parts = splitmux->num_prepared_parts;
|
|
do_async_done (splitmux);
|
|
|
|
/* All done preparing, activate the first part */
|
|
GST_INFO_OBJECT (splitmux,
|
|
"All parts prepared. Total duration %" GST_TIME_FORMAT
|
|
" Activating first part", GST_TIME_ARGS (splitmux->total_duration));
|
|
gst_element_call_async (GST_ELEMENT_CAST (splitmux),
|
|
(GstElementCallAsyncFunc) gst_splitmux_src_activate_first_part,
|
|
NULL, NULL);
|
|
}
|
|
|
|
break;
|
|
}
|
|
case GST_MESSAGE_ERROR:{
|
|
GST_ERROR_OBJECT (splitmux,
|
|
"Got error message from part %" GST_PTR_FORMAT ": %" GST_PTR_FORMAT,
|
|
GST_MESSAGE_SRC (msg), msg);
|
|
if (splitmux->num_prepared_parts < splitmux->num_parts) {
|
|
guint idx = splitmux->num_prepared_parts;
|
|
|
|
if (idx == 0) {
|
|
GST_ERROR_OBJECT (splitmux,
|
|
"Failed to prepare first file part %s for playback",
|
|
splitmux->parts[idx]->path);
|
|
GST_ELEMENT_ERROR (splitmux, RESOURCE, OPEN_READ, (NULL),
|
|
("Failed to prepare first file part %s for playback",
|
|
splitmux->parts[idx]->path));
|
|
} else {
|
|
GST_WARNING_OBJECT (splitmux,
|
|
"Failed to prepare file part %s. Cannot play past there.",
|
|
splitmux->parts[idx]->path);
|
|
GST_ELEMENT_WARNING (splitmux, RESOURCE, READ, (NULL),
|
|
("Failed to prepare file part %s. Cannot play past there.",
|
|
splitmux->parts[idx]->path));
|
|
}
|
|
|
|
/* Store how many parts we actually prepared in the end */
|
|
splitmux->num_parts = splitmux->num_prepared_parts;
|
|
do_async_done (splitmux);
|
|
|
|
if (idx > 0) {
|
|
/* All done preparing, activate the first part */
|
|
GST_INFO_OBJECT (splitmux,
|
|
"All parts prepared. Total duration %" GST_TIME_FORMAT
|
|
" Activating first part",
|
|
GST_TIME_ARGS (splitmux->total_duration));
|
|
gst_element_call_async (GST_ELEMENT_CAST (splitmux),
|
|
(GstElementCallAsyncFunc) gst_splitmux_src_activate_first_part,
|
|
NULL, NULL);
|
|
}
|
|
} else {
|
|
/* Need to update the message source so that it's part of the element
|
|
* hierarchy the application would expect */
|
|
msg = gst_message_copy (msg);
|
|
gst_object_replace ((GstObject **) & msg->src, (GstObject *) splitmux);
|
|
gst_element_post_message (GST_ELEMENT_CAST (splitmux), msg);
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return GST_BUS_PASS;
|
|
}
|
|
|
|
static GstSplitMuxPartReader *
|
|
gst_splitmux_part_create (GstSplitMuxSrc * splitmux, char *filename)
|
|
{
|
|
GstSplitMuxPartReader *r;
|
|
GstBus *bus;
|
|
|
|
r = g_object_new (GST_TYPE_SPLITMUX_PART_READER, NULL);
|
|
|
|
gst_splitmux_part_reader_set_callbacks (r, splitmux,
|
|
(GstSplitMuxPartReaderPadCb) gst_splitmux_find_output_pad);
|
|
gst_splitmux_part_reader_set_location (r, filename);
|
|
|
|
bus = gst_element_get_bus (GST_ELEMENT_CAST (r));
|
|
gst_bus_set_sync_handler (bus, gst_splitmux_part_bus_handler, splitmux, NULL);
|
|
gst_object_unref (bus);
|
|
|
|
return r;
|
|
}
|
|
|
|
static gboolean
|
|
gst_splitmux_check_new_caps (SplitMuxSrcPad * splitpad, GstEvent * event)
|
|
{
|
|
GstCaps *curcaps = gst_pad_get_current_caps ((GstPad *) (splitpad));
|
|
GstCaps *newcaps;
|
|
GstCaps *tmpcaps;
|
|
GstCaps *tmpcurcaps;
|
|
|
|
GstStructure *s;
|
|
gboolean res = TRUE;
|
|
|
|
gst_event_parse_caps (event, &newcaps);
|
|
|
|
GST_LOG_OBJECT (splitpad, "Comparing caps %" GST_PTR_FORMAT
|
|
" and %" GST_PTR_FORMAT, curcaps, newcaps);
|
|
|
|
if (curcaps == NULL)
|
|
return TRUE;
|
|
|
|
/* If caps are exactly equal exit early */
|
|
if (gst_caps_is_equal (curcaps, newcaps)) {
|
|
gst_caps_unref (curcaps);
|
|
return FALSE;
|
|
}
|
|
|
|
/* More extensive check, ignore changes in framerate, because
|
|
* demuxers get that wrong */
|
|
tmpcaps = gst_caps_copy (newcaps);
|
|
s = gst_caps_get_structure (tmpcaps, 0);
|
|
gst_structure_remove_field (s, "framerate");
|
|
|
|
tmpcurcaps = gst_caps_copy (curcaps);
|
|
gst_caps_unref (curcaps);
|
|
s = gst_caps_get_structure (tmpcurcaps, 0);
|
|
gst_structure_remove_field (s, "framerate");
|
|
|
|
/* Now check if these filtered caps are equal */
|
|
if (gst_caps_is_equal (tmpcurcaps, tmpcaps)) {
|
|
GST_INFO_OBJECT (splitpad, "Ignoring framerate-only caps change");
|
|
res = FALSE;
|
|
}
|
|
|
|
gst_caps_unref (tmpcaps);
|
|
gst_caps_unref (tmpcurcaps);
|
|
return res;
|
|
}
|
|
|
|
static void
|
|
gst_splitmux_handle_event (GstSplitMuxSrc * splitmux,
|
|
SplitMuxSrcPad * splitpad, GstPad * part_pad, GstEvent * event)
|
|
{
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_STREAM_START:{
|
|
if (splitpad->sent_stream_start)
|
|
goto drop_event;
|
|
splitpad->sent_stream_start = TRUE;
|
|
break;
|
|
}
|
|
case GST_EVENT_EOS:{
|
|
if (gst_splitmux_end_of_part (splitmux, splitpad))
|
|
// Continuing to next part, drop the EOS
|
|
goto drop_event;
|
|
if (splitmux->segment_seqnum) {
|
|
event = gst_event_make_writable (event);
|
|
gst_event_set_seqnum (event, splitmux->segment_seqnum);
|
|
}
|
|
break;
|
|
}
|
|
case GST_EVENT_SEGMENT:{
|
|
GstClockTime duration;
|
|
GstSegment seg;
|
|
|
|
gst_event_copy_segment (event, &seg);
|
|
|
|
splitpad->segment.position = seg.position;
|
|
|
|
if (splitpad->sent_segment)
|
|
goto drop_event; /* We already forwarded a segment event */
|
|
|
|
/* Calculate output segment */
|
|
GST_LOG_OBJECT (splitpad, "Pad seg %" GST_SEGMENT_FORMAT
|
|
" got seg %" GST_SEGMENT_FORMAT
|
|
" play seg %" GST_SEGMENT_FORMAT,
|
|
&splitpad->segment, &seg, &splitmux->play_segment);
|
|
|
|
/* If playing forward, take the stop time from the overall
|
|
* seg or play_segment */
|
|
if (splitmux->play_segment.rate > 0.0) {
|
|
if (splitmux->play_segment.stop != -1)
|
|
seg.stop = splitmux->play_segment.stop + FIXED_TS_OFFSET;
|
|
else
|
|
seg.stop = splitpad->segment.stop;
|
|
} else {
|
|
/* Reverse playback from stop time to start time */
|
|
/* See if an end point was requested in the seek */
|
|
if (splitmux->play_segment.start != -1) {
|
|
seg.start = splitmux->play_segment.start + FIXED_TS_OFFSET;
|
|
seg.time = splitmux->play_segment.time;
|
|
} else {
|
|
seg.start = splitpad->segment.start;
|
|
seg.time = splitpad->segment.time;
|
|
}
|
|
}
|
|
|
|
GST_OBJECT_LOCK (splitmux);
|
|
duration = splitmux->total_duration;
|
|
GST_OBJECT_UNLOCK (splitmux);
|
|
|
|
if (duration > 0)
|
|
seg.duration = duration;
|
|
else
|
|
seg.duration = GST_CLOCK_TIME_NONE;
|
|
|
|
GST_INFO_OBJECT (splitpad,
|
|
"Forwarding segment %" GST_SEGMENT_FORMAT, &seg);
|
|
|
|
gst_event_unref (event);
|
|
event = gst_event_new_segment (&seg);
|
|
if (splitmux->segment_seqnum)
|
|
gst_event_set_seqnum (event, splitmux->segment_seqnum);
|
|
splitpad->sent_segment = TRUE;
|
|
break;
|
|
}
|
|
case GST_EVENT_CAPS:{
|
|
if (!gst_splitmux_check_new_caps (splitpad, event))
|
|
goto drop_event;
|
|
splitpad->sent_caps = TRUE;
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
gst_pad_push_event ((GstPad *) (splitpad), event);
|
|
return;
|
|
drop_event:
|
|
gst_event_unref (event);
|
|
return;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_splitmux_handle_buffer (GstSplitMuxSrc * splitmux,
|
|
SplitMuxSrcPad * splitpad, GstBuffer * buf)
|
|
{
|
|
GstFlowReturn ret;
|
|
|
|
if (splitpad->clear_next_discont) {
|
|
GST_LOG_OBJECT (splitpad, "Clearing discont flag on buffer");
|
|
GST_BUFFER_FLAG_UNSET (buf, GST_BUFFER_FLAG_DISCONT);
|
|
splitpad->clear_next_discont = FALSE;
|
|
}
|
|
if (splitpad->set_next_discont) {
|
|
GST_LOG_OBJECT (splitpad, "Setting discont flag on buffer");
|
|
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
|
|
splitpad->set_next_discont = FALSE;
|
|
}
|
|
|
|
ret = gst_pad_push (GST_PAD_CAST (splitpad), buf);
|
|
|
|
GST_LOG_OBJECT (splitpad, "Pad push returned %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
static guint
|
|
count_not_linked (GstSplitMuxSrc * splitmux)
|
|
{
|
|
GList *cur;
|
|
guint ret = 0;
|
|
|
|
for (cur = g_list_first (splitmux->pads);
|
|
cur != NULL; cur = g_list_next (cur)) {
|
|
SplitMuxSrcPad *splitpad = (SplitMuxSrcPad *) (cur->data);
|
|
if (GST_PAD_LAST_FLOW_RETURN (splitpad) == GST_FLOW_NOT_LINKED)
|
|
ret++;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
gst_splitmux_pad_loop (GstPad * pad)
|
|
{
|
|
/* Get one event/buffer from the associated part and push */
|
|
SplitMuxSrcPad *splitpad = (SplitMuxSrcPad *) (pad);
|
|
GstSplitMuxSrc *splitmux = (GstSplitMuxSrc *) gst_pad_get_parent (pad);
|
|
GstDataQueueItem *item = NULL;
|
|
GstSplitMuxPartReader *reader = NULL;
|
|
GstPad *part_pad;
|
|
GstFlowReturn ret;
|
|
|
|
GST_OBJECT_LOCK (splitpad);
|
|
if (splitpad->part_pad == NULL) {
|
|
GST_DEBUG_OBJECT (splitmux,
|
|
"Pausing task because part reader is not present");
|
|
GST_OBJECT_UNLOCK (splitpad);
|
|
gst_pad_pause_task (pad);
|
|
gst_object_unref (splitmux);
|
|
return;
|
|
}
|
|
part_pad = gst_object_ref (splitpad->part_pad);
|
|
GST_OBJECT_UNLOCK (splitpad);
|
|
|
|
SPLITMUX_SRC_LOCK (splitmux);
|
|
reader = splitpad->reader ? gst_object_ref (splitpad->reader) : NULL;
|
|
SPLITMUX_SRC_UNLOCK (splitmux);
|
|
|
|
if (reader == NULL)
|
|
goto flushing;
|
|
|
|
GST_LOG_OBJECT (splitpad, "Popping data queue item from %" GST_PTR_FORMAT
|
|
" pad %" GST_PTR_FORMAT, reader, part_pad);
|
|
ret = gst_splitmux_part_reader_pop (reader, part_pad, &item);
|
|
if (ret == GST_FLOW_ERROR)
|
|
goto error;
|
|
if (ret == GST_FLOW_FLUSHING || item == NULL)
|
|
goto flushing;
|
|
|
|
GST_DEBUG_OBJECT (splitpad, "Got data queue item %" GST_PTR_FORMAT,
|
|
item->object);
|
|
|
|
if (GST_IS_EVENT (item->object)) {
|
|
GstEvent *event = (GstEvent *) (item->object);
|
|
gst_splitmux_handle_event (splitmux, splitpad, part_pad, event);
|
|
} else {
|
|
GstBuffer *buf = (GstBuffer *) (item->object);
|
|
GstFlowReturn ret = gst_splitmux_handle_buffer (splitmux, splitpad, buf);
|
|
if (G_UNLIKELY (ret != GST_FLOW_OK && ret != GST_FLOW_EOS)) {
|
|
/* Stop immediately on error or flushing */
|
|
GST_INFO_OBJECT (splitpad, "Stopping due to pad_push() result %d", ret);
|
|
gst_pad_pause_task (pad);
|
|
if (ret < GST_FLOW_EOS) {
|
|
GST_ELEMENT_FLOW_ERROR (splitmux, ret);
|
|
} else if (ret == GST_FLOW_NOT_LINKED) {
|
|
gboolean post_error;
|
|
guint n_notlinked;
|
|
|
|
/* Only post not-linked if all pads are not-linked */
|
|
SPLITMUX_SRC_PADS_RLOCK (splitmux);
|
|
n_notlinked = count_not_linked (splitmux);
|
|
post_error = (splitmux->pads_complete
|
|
&& n_notlinked == splitmux->n_pads);
|
|
SPLITMUX_SRC_PADS_RUNLOCK (splitmux);
|
|
|
|
if (post_error)
|
|
GST_ELEMENT_FLOW_ERROR (splitmux, ret);
|
|
}
|
|
}
|
|
}
|
|
g_slice_free (GstDataQueueItem, item);
|
|
|
|
gst_object_unref (reader);
|
|
gst_object_unref (part_pad);
|
|
gst_object_unref (splitmux);
|
|
return;
|
|
|
|
error:
|
|
/* Fall through */
|
|
GST_ELEMENT_ERROR (splitmux, RESOURCE, OPEN_READ, (NULL),
|
|
("Error reading part file %s", GST_STR_NULL (reader->path)));
|
|
flushing:
|
|
gst_pad_pause_task (pad);
|
|
if (reader != NULL)
|
|
gst_object_unref (reader);
|
|
gst_object_unref (part_pad);
|
|
gst_object_unref (splitmux);
|
|
return;
|
|
}
|
|
|
|
static gboolean
|
|
gst_splitmux_src_activate_part (GstSplitMuxSrc * splitmux, guint part,
|
|
GstSeekFlags extra_flags)
|
|
{
|
|
GList *cur;
|
|
|
|
GST_DEBUG_OBJECT (splitmux, "Activating part %d", part);
|
|
|
|
splitmux->cur_part = part;
|
|
if (!gst_splitmux_part_reader_activate (splitmux->parts[part],
|
|
&splitmux->play_segment, extra_flags))
|
|
return FALSE;
|
|
|
|
SPLITMUX_SRC_PADS_RLOCK (splitmux);
|
|
for (cur = g_list_first (splitmux->pads);
|
|
cur != NULL; cur = g_list_next (cur)) {
|
|
SplitMuxSrcPad *splitpad = (SplitMuxSrcPad *) (cur->data);
|
|
GST_OBJECT_LOCK (splitpad);
|
|
splitpad->cur_part = part;
|
|
splitpad->reader = splitmux->parts[splitpad->cur_part];
|
|
if (splitpad->part_pad)
|
|
gst_object_unref (splitpad->part_pad);
|
|
splitpad->part_pad =
|
|
gst_splitmux_part_reader_lookup_pad (splitpad->reader,
|
|
(GstPad *) (splitpad));
|
|
GST_OBJECT_UNLOCK (splitpad);
|
|
|
|
/* Make sure we start with a DISCONT */
|
|
splitpad->set_next_discont = TRUE;
|
|
splitpad->clear_next_discont = FALSE;
|
|
|
|
gst_pad_start_task (GST_PAD (splitpad),
|
|
(GstTaskFunction) gst_splitmux_pad_loop, splitpad, NULL);
|
|
}
|
|
SPLITMUX_SRC_PADS_RUNLOCK (splitmux);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_splitmux_src_prepare_next_part (GstSplitMuxSrc * splitmux)
|
|
{
|
|
guint idx = splitmux->num_prepared_parts;
|
|
|
|
g_assert (idx < splitmux->num_parts);
|
|
|
|
GST_DEBUG_OBJECT (splitmux, "Preparing file part %s (%u)",
|
|
splitmux->parts[idx]->path, idx);
|
|
|
|
gst_splitmux_part_reader_set_start_offset (splitmux->parts[idx],
|
|
splitmux->end_offset, FIXED_TS_OFFSET);
|
|
if (!gst_splitmux_part_reader_prepare (splitmux->parts[idx])) {
|
|
GST_WARNING_OBJECT (splitmux,
|
|
"Failed to prepare file part %s. Cannot play past there.",
|
|
splitmux->parts[idx]->path);
|
|
GST_ELEMENT_WARNING (splitmux, RESOURCE, READ, (NULL),
|
|
("Failed to prepare file part %s. Cannot play past there.",
|
|
splitmux->parts[idx]->path));
|
|
gst_splitmux_part_reader_unprepare (splitmux->parts[idx]);
|
|
g_object_unref (splitmux->parts[idx]);
|
|
splitmux->parts[idx] = NULL;
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_splitmux_src_start (GstSplitMuxSrc * splitmux)
|
|
{
|
|
gboolean ret = FALSE;
|
|
GError *err = NULL;
|
|
gchar *basename = NULL;
|
|
gchar *dirname = NULL;
|
|
gchar **files;
|
|
guint i;
|
|
|
|
SPLITMUX_SRC_LOCK (splitmux);
|
|
if (splitmux->running) {
|
|
/* splitmux is still running / stopping. We can't start again yet */
|
|
SPLITMUX_SRC_UNLOCK (splitmux);
|
|
return FALSE;
|
|
}
|
|
SPLITMUX_SRC_UNLOCK (splitmux);
|
|
|
|
GST_DEBUG_OBJECT (splitmux, "Starting");
|
|
|
|
g_signal_emit (splitmux, signals[SIGNAL_FORMAT_LOCATION], 0, &files);
|
|
|
|
if (files == NULL || *files == NULL) {
|
|
GST_OBJECT_LOCK (splitmux);
|
|
if (splitmux->location != NULL && splitmux->location[0] != '\0') {
|
|
basename = g_path_get_basename (splitmux->location);
|
|
dirname = g_path_get_dirname (splitmux->location);
|
|
}
|
|
GST_OBJECT_UNLOCK (splitmux);
|
|
|
|
g_strfreev (files);
|
|
files = gst_split_util_find_files (dirname, basename, &err);
|
|
|
|
if (files == NULL || *files == NULL)
|
|
goto no_files;
|
|
}
|
|
|
|
SPLITMUX_SRC_LOCK (splitmux);
|
|
splitmux->pads_complete = FALSE;
|
|
splitmux->running = TRUE;
|
|
SPLITMUX_SRC_UNLOCK (splitmux);
|
|
|
|
splitmux->num_parts = g_strv_length (files);
|
|
|
|
splitmux->parts = g_new0 (GstSplitMuxPartReader *, splitmux->num_parts);
|
|
|
|
/* Create all part pipelines */
|
|
for (i = 0; i < splitmux->num_parts; i++) {
|
|
splitmux->parts[i] = gst_splitmux_part_create (splitmux, files[i]);
|
|
if (splitmux->parts[i] == NULL)
|
|
break;
|
|
}
|
|
|
|
/* Store how many parts we actually created */
|
|
splitmux->num_created_parts = splitmux->num_parts = i;
|
|
splitmux->num_prepared_parts = 0;
|
|
|
|
/* Update total_duration state variable */
|
|
GST_OBJECT_LOCK (splitmux);
|
|
splitmux->total_duration = 0;
|
|
splitmux->end_offset = 0;
|
|
GST_OBJECT_UNLOCK (splitmux);
|
|
|
|
/* Then start the first: it will asynchronously go to PAUSED
|
|
* or error out and then we can proceed with the next one
|
|
*/
|
|
if (!gst_splitmux_src_prepare_next_part (splitmux) || splitmux->num_parts < 1)
|
|
goto failed_part;
|
|
|
|
/* All good now: we have to wait for all parts to be asynchronously
|
|
* prepared to know the total duration we can play */
|
|
ret = TRUE;
|
|
|
|
done:
|
|
if (err != NULL)
|
|
g_error_free (err);
|
|
g_strfreev (files);
|
|
g_free (basename);
|
|
g_free (dirname);
|
|
|
|
return ret;
|
|
|
|
/* ERRORS */
|
|
no_files:
|
|
{
|
|
GST_ELEMENT_ERROR (splitmux, RESOURCE, OPEN_READ, ("%s", err->message),
|
|
("Failed to find files in '%s' for pattern '%s'",
|
|
GST_STR_NULL (dirname), GST_STR_NULL (basename)));
|
|
goto done;
|
|
}
|
|
failed_part:
|
|
{
|
|
GST_ELEMENT_ERROR (splitmux, RESOURCE, OPEN_READ, (NULL),
|
|
("Failed to open any files for reading"));
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_splitmux_src_stop (GstSplitMuxSrc * splitmux)
|
|
{
|
|
gboolean ret = TRUE;
|
|
guint i;
|
|
GList *cur, *pads_list;
|
|
|
|
SPLITMUX_SRC_LOCK (splitmux);
|
|
if (!splitmux->running)
|
|
goto out;
|
|
splitmux->running = FALSE;
|
|
GST_DEBUG_OBJECT (splitmux, "Stopping");
|
|
|
|
SPLITMUX_SRC_UNLOCK (splitmux);
|
|
|
|
/* Stop all part readers. We don't need the lock here,
|
|
* because all parts were created in _start() */
|
|
for (i = 0; i < splitmux->num_created_parts; i++) {
|
|
if (splitmux->parts[i] == NULL)
|
|
continue;
|
|
gst_splitmux_part_reader_unprepare (splitmux->parts[i]);
|
|
}
|
|
SPLITMUX_SRC_LOCK (splitmux);
|
|
|
|
SPLITMUX_SRC_PADS_WLOCK (splitmux);
|
|
pads_list = splitmux->pads;
|
|
splitmux->pads = NULL;
|
|
SPLITMUX_SRC_PADS_WUNLOCK (splitmux);
|
|
|
|
SPLITMUX_SRC_UNLOCK (splitmux);
|
|
for (cur = g_list_first (pads_list); cur != NULL; cur = g_list_next (cur)) {
|
|
SplitMuxSrcPad *tmp = (SplitMuxSrcPad *) (cur->data);
|
|
gst_pad_stop_task (GST_PAD (tmp));
|
|
gst_element_remove_pad (GST_ELEMENT (splitmux), GST_PAD (tmp));
|
|
}
|
|
g_list_free (pads_list);
|
|
SPLITMUX_SRC_LOCK (splitmux);
|
|
|
|
/* Now the pad task is stopped we can destroy the readers */
|
|
for (i = 0; i < splitmux->num_created_parts; i++) {
|
|
if (splitmux->parts[i] == NULL)
|
|
continue;
|
|
g_object_unref (splitmux->parts[i]);
|
|
splitmux->parts[i] = NULL;
|
|
}
|
|
|
|
g_free (splitmux->parts);
|
|
splitmux->parts = NULL;
|
|
splitmux->num_parts = 0;
|
|
splitmux->num_prepared_parts = 0;
|
|
splitmux->num_created_parts = 0;
|
|
splitmux->total_duration = GST_CLOCK_TIME_NONE;
|
|
/* Reset playback segment */
|
|
gst_segment_init (&splitmux->play_segment, GST_FORMAT_TIME);
|
|
out:
|
|
SPLITMUX_SRC_UNLOCK (splitmux);
|
|
return ret;
|
|
}
|
|
|
|
typedef struct
|
|
{
|
|
GstSplitMuxSrc *splitmux;
|
|
SplitMuxSrcPad *splitpad;
|
|
} SplitMuxAndPad;
|
|
|
|
static gboolean
|
|
handle_sticky_events (GstPad * pad, GstEvent ** event, gpointer user_data)
|
|
{
|
|
SplitMuxAndPad *splitmux_and_pad;
|
|
GstSplitMuxSrc *splitmux;
|
|
SplitMuxSrcPad *splitpad;
|
|
|
|
splitmux_and_pad = user_data;
|
|
splitmux = splitmux_and_pad->splitmux;
|
|
splitpad = splitmux_and_pad->splitpad;
|
|
|
|
GST_DEBUG_OBJECT (splitpad, "handle sticky event %" GST_PTR_FORMAT, *event);
|
|
gst_event_ref (*event);
|
|
gst_splitmux_handle_event (splitmux, splitpad, pad, *event);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static GstPad *
|
|
gst_splitmux_find_output_pad (GstSplitMuxPartReader * part, GstPad * pad,
|
|
GstSplitMuxSrc * splitmux)
|
|
{
|
|
GList *cur;
|
|
gchar *pad_name = gst_pad_get_name (pad);
|
|
GstPad *target = NULL;
|
|
gboolean is_new_pad = FALSE;
|
|
|
|
SPLITMUX_SRC_LOCK (splitmux);
|
|
SPLITMUX_SRC_PADS_WLOCK (splitmux);
|
|
for (cur = g_list_first (splitmux->pads);
|
|
cur != NULL; cur = g_list_next (cur)) {
|
|
GstPad *tmp = (GstPad *) (cur->data);
|
|
if (g_str_equal (GST_PAD_NAME (tmp), pad_name)) {
|
|
target = tmp;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (target == NULL && !splitmux->pads_complete) {
|
|
SplitMuxAndPad splitmux_and_pad;
|
|
|
|
/* No pad found, create one */
|
|
target = g_object_new (SPLITMUX_TYPE_SRC_PAD,
|
|
"name", pad_name, "direction", GST_PAD_SRC, NULL);
|
|
splitmux->pads = g_list_prepend (splitmux->pads, target);
|
|
splitmux->n_pads++;
|
|
|
|
gst_pad_set_active (target, TRUE);
|
|
|
|
splitmux_and_pad.splitmux = splitmux;
|
|
splitmux_and_pad.splitpad = (SplitMuxSrcPad *) target;
|
|
gst_pad_sticky_events_foreach (pad, handle_sticky_events,
|
|
&splitmux_and_pad);
|
|
is_new_pad = TRUE;
|
|
}
|
|
SPLITMUX_SRC_PADS_WUNLOCK (splitmux);
|
|
SPLITMUX_SRC_UNLOCK (splitmux);
|
|
|
|
g_free (pad_name);
|
|
|
|
if (target == NULL)
|
|
goto pad_not_found;
|
|
|
|
if (is_new_pad)
|
|
gst_element_add_pad (GST_ELEMENT_CAST (splitmux), target);
|
|
|
|
return target;
|
|
|
|
pad_not_found:
|
|
GST_ELEMENT_ERROR (splitmux, STREAM, FAILED, (NULL),
|
|
("Stream part %s contains extra unknown pad %" GST_PTR_FORMAT,
|
|
part->path, pad));
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
gst_splitmux_push_event (GstSplitMuxSrc * splitmux, GstEvent * e,
|
|
guint32 seqnum)
|
|
{
|
|
GList *cur;
|
|
|
|
if (seqnum) {
|
|
e = gst_event_make_writable (e);
|
|
gst_event_set_seqnum (e, seqnum);
|
|
}
|
|
|
|
SPLITMUX_SRC_PADS_RLOCK (splitmux);
|
|
for (cur = g_list_first (splitmux->pads);
|
|
cur != NULL; cur = g_list_next (cur)) {
|
|
GstPad *pad = GST_PAD_CAST (cur->data);
|
|
gst_event_ref (e);
|
|
gst_pad_push_event (pad, e);
|
|
}
|
|
SPLITMUX_SRC_PADS_RUNLOCK (splitmux);
|
|
|
|
gst_event_unref (e);
|
|
}
|
|
|
|
static void
|
|
gst_splitmux_push_flush_stop (GstSplitMuxSrc * splitmux, guint32 seqnum)
|
|
{
|
|
GstEvent *e = gst_event_new_flush_stop (TRUE);
|
|
GList *cur;
|
|
|
|
if (seqnum) {
|
|
e = gst_event_make_writable (e);
|
|
gst_event_set_seqnum (e, seqnum);
|
|
}
|
|
|
|
SPLITMUX_SRC_PADS_RLOCK (splitmux);
|
|
for (cur = g_list_first (splitmux->pads);
|
|
cur != NULL; cur = g_list_next (cur)) {
|
|
SplitMuxSrcPad *target = (SplitMuxSrcPad *) (cur->data);
|
|
|
|
gst_event_ref (e);
|
|
gst_pad_push_event (GST_PAD_CAST (target), e);
|
|
target->sent_caps = FALSE;
|
|
target->sent_stream_start = FALSE;
|
|
target->sent_segment = FALSE;
|
|
}
|
|
SPLITMUX_SRC_PADS_RUNLOCK (splitmux);
|
|
|
|
gst_event_unref (e);
|
|
}
|
|
|
|
/* Callback for when a part finishes and we need to move to the next */
|
|
static gboolean
|
|
gst_splitmux_end_of_part (GstSplitMuxSrc * splitmux, SplitMuxSrcPad * splitpad)
|
|
{
|
|
gint next_part = -1;
|
|
gint cur_part = splitpad->cur_part;
|
|
gboolean res = FALSE;
|
|
|
|
if (splitmux->play_segment.rate >= 0.0) {
|
|
if (cur_part + 1 < splitmux->num_parts)
|
|
next_part = cur_part + 1;
|
|
/* Make sure the transition is seamless */
|
|
splitpad->set_next_discont = FALSE;
|
|
splitpad->clear_next_discont = TRUE;
|
|
} else {
|
|
/* Reverse play - move to previous segment */
|
|
if (cur_part > 0) {
|
|
next_part = cur_part - 1;
|
|
/* Non-seamless transition in reverse */
|
|
splitpad->set_next_discont = TRUE;
|
|
splitpad->clear_next_discont = FALSE;
|
|
}
|
|
}
|
|
|
|
SPLITMUX_SRC_LOCK (splitmux);
|
|
|
|
/* If all pads are done with this part, deactivate it */
|
|
if (gst_splitmux_part_is_eos (splitmux->parts[splitpad->cur_part]))
|
|
gst_splitmux_part_reader_deactivate (splitmux->parts[cur_part]);
|
|
|
|
if (splitmux->play_segment.rate >= 0.0) {
|
|
if (splitmux->play_segment.stop != -1) {
|
|
GstClockTime part_end =
|
|
gst_splitmux_part_reader_get_end_offset (splitmux->parts[cur_part]);
|
|
if (part_end >= splitmux->play_segment.stop) {
|
|
GST_DEBUG_OBJECT (splitmux,
|
|
"Stop position was within that part. Finishing");
|
|
next_part = -1;
|
|
}
|
|
}
|
|
} else {
|
|
if (splitmux->play_segment.start != -1) {
|
|
GstClockTime part_start =
|
|
gst_splitmux_part_reader_get_start_offset (splitmux->parts[cur_part]);
|
|
if (part_start <= splitmux->play_segment.start) {
|
|
GST_DEBUG_OBJECT (splitmux,
|
|
"Start position %" GST_TIME_FORMAT
|
|
" was within that part. Finishing",
|
|
GST_TIME_ARGS (splitmux->play_segment.start));
|
|
next_part = -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (next_part != -1) {
|
|
GST_DEBUG_OBJECT (splitmux, "At EOS on pad %" GST_PTR_FORMAT
|
|
" moving to part %d", splitpad, next_part);
|
|
splitpad->cur_part = next_part;
|
|
splitpad->reader = splitmux->parts[splitpad->cur_part];
|
|
if (splitpad->part_pad)
|
|
gst_object_unref (splitpad->part_pad);
|
|
splitpad->part_pad =
|
|
gst_splitmux_part_reader_lookup_pad (splitpad->reader,
|
|
(GstPad *) (splitpad));
|
|
|
|
if (splitmux->cur_part != next_part) {
|
|
if (!gst_splitmux_part_reader_is_active (splitpad->reader)) {
|
|
GstSegment tmp;
|
|
/* If moving backward into a new part, set stop
|
|
* to -1 to ensure we play the entire file - workaround
|
|
* a bug in qtdemux that misses bits at the end */
|
|
gst_segment_copy_into (&splitmux->play_segment, &tmp);
|
|
if (tmp.rate < 0)
|
|
tmp.stop = -1;
|
|
|
|
/* This is the first pad to move to the new part, activate it */
|
|
GST_DEBUG_OBJECT (splitpad,
|
|
"First pad to change part. Activating part %d with seg %"
|
|
GST_SEGMENT_FORMAT, next_part, &tmp);
|
|
if (!gst_splitmux_part_reader_activate (splitpad->reader, &tmp,
|
|
GST_SEEK_FLAG_NONE))
|
|
goto error;
|
|
}
|
|
splitmux->cur_part = next_part;
|
|
}
|
|
res = TRUE;
|
|
}
|
|
|
|
SPLITMUX_SRC_UNLOCK (splitmux);
|
|
return res;
|
|
error:
|
|
SPLITMUX_SRC_UNLOCK (splitmux);
|
|
GST_ELEMENT_ERROR (splitmux, RESOURCE, READ, (NULL),
|
|
("Failed to activate part %d", splitmux->cur_part));
|
|
return FALSE;
|
|
}
|
|
|
|
G_DEFINE_TYPE (SplitMuxSrcPad, splitmux_src_pad, GST_TYPE_PAD);
|
|
|
|
static void
|
|
splitmux_src_pad_constructed (GObject * pad)
|
|
{
|
|
gst_pad_set_event_function (GST_PAD (pad),
|
|
GST_DEBUG_FUNCPTR (splitmux_src_pad_event));
|
|
gst_pad_set_query_function (GST_PAD (pad),
|
|
GST_DEBUG_FUNCPTR (splitmux_src_pad_query));
|
|
|
|
G_OBJECT_CLASS (splitmux_src_pad_parent_class)->constructed (pad);
|
|
}
|
|
|
|
static void
|
|
gst_splitmux_src_pad_dispose (GObject * object)
|
|
{
|
|
SplitMuxSrcPad *pad = (SplitMuxSrcPad *) (object);
|
|
|
|
GST_OBJECT_LOCK (pad);
|
|
if (pad->part_pad) {
|
|
gst_object_unref (pad->part_pad);
|
|
pad->part_pad = NULL;
|
|
}
|
|
GST_OBJECT_UNLOCK (pad);
|
|
|
|
G_OBJECT_CLASS (splitmux_src_pad_parent_class)->dispose (object);
|
|
}
|
|
|
|
static void
|
|
splitmux_src_pad_class_init (SplitMuxSrcPadClass * klass)
|
|
{
|
|
GObjectClass *gobject_klass = (GObjectClass *) (klass);
|
|
|
|
gobject_klass->constructed = splitmux_src_pad_constructed;
|
|
gobject_klass->dispose = gst_splitmux_src_pad_dispose;
|
|
}
|
|
|
|
static void
|
|
splitmux_src_pad_init (SplitMuxSrcPad * pad)
|
|
{
|
|
}
|
|
|
|
/* Event handler for source pads. Proxy events into the child
|
|
* parts as needed
|
|
*/
|
|
static gboolean
|
|
splitmux_src_pad_event (GstPad * pad, GstObject * parent, GstEvent * event)
|
|
{
|
|
GstSplitMuxSrc *splitmux = GST_SPLITMUX_SRC (parent);
|
|
gboolean ret = FALSE;
|
|
|
|
GST_DEBUG_OBJECT (parent, "event %" GST_PTR_FORMAT
|
|
" on %" GST_PTR_FORMAT, event, pad);
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_SEEK:{
|
|
GstFormat format;
|
|
gdouble rate;
|
|
GstSeekFlags flags;
|
|
GstSeekType start_type, stop_type;
|
|
gint64 start, stop;
|
|
guint32 seqnum;
|
|
gint i;
|
|
GstClockTime part_start, position;
|
|
GList *cur;
|
|
GstSegment tmp;
|
|
|
|
gst_event_parse_seek (event, &rate, &format, &flags,
|
|
&start_type, &start, &stop_type, &stop);
|
|
|
|
if (format != GST_FORMAT_TIME) {
|
|
GST_DEBUG_OBJECT (splitmux, "can only seek on TIME");
|
|
goto error;
|
|
}
|
|
/* FIXME: Support non-flushing seeks, which might never wake up */
|
|
if (!(flags & GST_SEEK_FLAG_FLUSH)) {
|
|
GST_DEBUG_OBJECT (splitmux, "Only flushing seeks supported");
|
|
goto error;
|
|
}
|
|
seqnum = gst_event_get_seqnum (event);
|
|
|
|
SPLITMUX_SRC_LOCK (splitmux);
|
|
if (!splitmux->running || splitmux->num_parts < 1) {
|
|
/* Not started yet */
|
|
SPLITMUX_SRC_UNLOCK (splitmux);
|
|
goto error;
|
|
}
|
|
if (splitmux->segment_seqnum == seqnum) {
|
|
GST_DEBUG_OBJECT (splitmux, "Ignoring duplicate seek event");
|
|
SPLITMUX_SRC_UNLOCK (splitmux);
|
|
ret = TRUE;
|
|
goto done;
|
|
}
|
|
|
|
gst_segment_copy_into (&splitmux->play_segment, &tmp);
|
|
|
|
if (!gst_segment_do_seek (&tmp, rate,
|
|
format, flags, start_type, start, stop_type, stop, NULL)) {
|
|
/* Invalid seek requested, ignore it */
|
|
SPLITMUX_SRC_UNLOCK (splitmux);
|
|
goto error;
|
|
}
|
|
position = tmp.position;
|
|
|
|
GST_DEBUG_OBJECT (splitmux, "Performing seek with seg %"
|
|
GST_SEGMENT_FORMAT, &tmp);
|
|
|
|
GST_DEBUG_OBJECT (splitmux,
|
|
"Handling flushing seek. Sending flush start");
|
|
|
|
/* Send flush_start */
|
|
gst_splitmux_push_event (splitmux, gst_event_new_flush_start (), seqnum);
|
|
|
|
/* Stop all parts, which will work because of the flush */
|
|
SPLITMUX_SRC_PADS_RLOCK (splitmux);
|
|
SPLITMUX_SRC_UNLOCK (splitmux);
|
|
for (cur = g_list_first (splitmux->pads);
|
|
cur != NULL; cur = g_list_next (cur)) {
|
|
SplitMuxSrcPad *target = (SplitMuxSrcPad *) (cur->data);
|
|
GstSplitMuxPartReader *reader = splitmux->parts[target->cur_part];
|
|
gst_splitmux_part_reader_deactivate (reader);
|
|
}
|
|
|
|
/* Shut down pad tasks */
|
|
GST_DEBUG_OBJECT (splitmux, "Pausing pad tasks");
|
|
for (cur = g_list_first (splitmux->pads);
|
|
cur != NULL; cur = g_list_next (cur)) {
|
|
GstPad *splitpad = (GstPad *) (cur->data);
|
|
gst_pad_pause_task (GST_PAD (splitpad));
|
|
}
|
|
SPLITMUX_SRC_PADS_RUNLOCK (splitmux);
|
|
SPLITMUX_SRC_LOCK (splitmux);
|
|
|
|
/* Send flush stop */
|
|
GST_DEBUG_OBJECT (splitmux, "Sending flush stop");
|
|
gst_splitmux_push_flush_stop (splitmux, seqnum);
|
|
|
|
/* Everything is stopped, so update the play_segment */
|
|
gst_segment_copy_into (&tmp, &splitmux->play_segment);
|
|
splitmux->segment_seqnum = seqnum;
|
|
|
|
/* Work out where to start from now */
|
|
for (i = 0; i < splitmux->num_parts; i++) {
|
|
GstSplitMuxPartReader *reader = splitmux->parts[i];
|
|
GstClockTime part_end =
|
|
gst_splitmux_part_reader_get_end_offset (reader);
|
|
|
|
if (part_end > position)
|
|
break;
|
|
}
|
|
if (i == splitmux->num_parts)
|
|
i = splitmux->num_parts - 1;
|
|
|
|
part_start =
|
|
gst_splitmux_part_reader_get_start_offset (splitmux->parts[i]);
|
|
|
|
GST_DEBUG_OBJECT (splitmux,
|
|
"Seek to time %" GST_TIME_FORMAT " landed in part %d offset %"
|
|
GST_TIME_FORMAT, GST_TIME_ARGS (position),
|
|
i, GST_TIME_ARGS (position - part_start));
|
|
|
|
ret = gst_splitmux_src_activate_part (splitmux, i, flags);
|
|
SPLITMUX_SRC_UNLOCK (splitmux);
|
|
}
|
|
case GST_EVENT_RECONFIGURE:{
|
|
GST_DEBUG_OBJECT (splitmux, "reconfigure event on pad %" GST_PTR_FORMAT,
|
|
pad);
|
|
|
|
SPLITMUX_SRC_PADS_RLOCK (splitmux);
|
|
/* Restart the task on this pad */
|
|
gst_pad_start_task (GST_PAD (pad),
|
|
(GstTaskFunction) gst_splitmux_pad_loop, pad, NULL);
|
|
SPLITMUX_SRC_PADS_RUNLOCK (splitmux);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
done:
|
|
gst_event_unref (event);
|
|
error:
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
splitmux_src_pad_query (GstPad * pad, GstObject * parent, GstQuery * query)
|
|
{
|
|
/* Query handler for source pads. Proxy queries into the child
|
|
* parts as needed
|
|
*/
|
|
GstSplitMuxSrc *splitmux = GST_SPLITMUX_SRC (parent);
|
|
gboolean ret = FALSE;
|
|
|
|
GST_LOG_OBJECT (parent, "query %" GST_PTR_FORMAT
|
|
" on %" GST_PTR_FORMAT, query, pad);
|
|
switch (GST_QUERY_TYPE (query)) {
|
|
case GST_QUERY_CAPS:
|
|
case GST_QUERY_POSITION:{
|
|
GstSplitMuxPartReader *part;
|
|
SplitMuxSrcPad *anypad;
|
|
|
|
SPLITMUX_SRC_LOCK (splitmux);
|
|
SPLITMUX_SRC_PADS_RLOCK (splitmux);
|
|
anypad = (SplitMuxSrcPad *) (splitmux->pads->data);
|
|
part = splitmux->parts[anypad->cur_part];
|
|
ret = gst_splitmux_part_reader_src_query (part, pad, query);
|
|
SPLITMUX_SRC_PADS_RUNLOCK (splitmux);
|
|
SPLITMUX_SRC_UNLOCK (splitmux);
|
|
break;
|
|
}
|
|
case GST_QUERY_DURATION:{
|
|
GstClockTime duration;
|
|
GstFormat fmt;
|
|
|
|
gst_query_parse_duration (query, &fmt, NULL);
|
|
if (fmt != GST_FORMAT_TIME)
|
|
break;
|
|
|
|
GST_OBJECT_LOCK (splitmux);
|
|
duration = splitmux->total_duration;
|
|
GST_OBJECT_UNLOCK (splitmux);
|
|
|
|
if (duration > 0 && duration != GST_CLOCK_TIME_NONE) {
|
|
gst_query_set_duration (query, GST_FORMAT_TIME, duration);
|
|
ret = TRUE;
|
|
}
|
|
break;
|
|
}
|
|
case GST_QUERY_SEEKING:{
|
|
GstFormat format;
|
|
|
|
gst_query_parse_seeking (query, &format, NULL, NULL, NULL);
|
|
if (format != GST_FORMAT_TIME)
|
|
break;
|
|
|
|
GST_OBJECT_LOCK (splitmux);
|
|
gst_query_set_seeking (query, GST_FORMAT_TIME, TRUE, 0,
|
|
splitmux->total_duration);
|
|
ret = TRUE;
|
|
GST_OBJECT_UNLOCK (splitmux);
|
|
|
|
break;
|
|
}
|
|
case GST_QUERY_SEGMENT:{
|
|
GstFormat format;
|
|
gint64 start, stop;
|
|
|
|
SPLITMUX_SRC_LOCK (splitmux);
|
|
format = splitmux->play_segment.format;
|
|
|
|
start =
|
|
gst_segment_to_stream_time (&splitmux->play_segment, format,
|
|
splitmux->play_segment.start);
|
|
if (splitmux->play_segment.stop == GST_CLOCK_TIME_NONE) {
|
|
if (splitmux->play_segment.duration == GST_CLOCK_TIME_NONE)
|
|
stop = GST_CLOCK_TIME_NONE;
|
|
else
|
|
stop = start + splitmux->play_segment.duration;
|
|
} else {
|
|
stop = gst_segment_to_stream_time (&splitmux->play_segment, format,
|
|
splitmux->play_segment.stop);
|
|
}
|
|
|
|
gst_query_set_segment (query, splitmux->play_segment.rate, format, start,
|
|
stop);
|
|
ret = TRUE;
|
|
|
|
SPLITMUX_SRC_UNLOCK (splitmux);
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|