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content/media/gstreamer/GStreamerMozVideoBuffer.cpp@97036ab72558 (annotated)

content/media/gstreamer/GStreamerMozVideoBuffer.cpp

Tue, 06 Jan 2015 21:39:09 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Tue, 06 Jan 2015 21:39:09 +0100

branch

TOR_BUG_9701

changeset 8

97036ab72558

permissions

-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0	1	/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0	2	/* vim:set ts=2 sw=2 sts=2 et cindent: */
michael@0	3	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	4	* License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0	5	* You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	6
michael@0	7	#include <string.h>
michael@0	8	#include "GStreamerReader.h"
michael@0	9	#include "GStreamerMozVideoBuffer.h"
michael@0	10	#include "ImageContainer.h"
michael@0	11
michael@0	12	namespace mozilla {
michael@0	13
michael@0	14	static GstMozVideoBuffer *gst_moz_video_buffer_copy(GstMozVideoBuffer* self);
michael@0	15	static void gst_moz_video_buffer_finalize(GstMozVideoBuffer* self);
michael@0	16
michael@0	17	// working around GTK+ bug https://bugzilla.gnome.org/show_bug.cgi?id=723899
michael@0	18	#pragma GCC diagnostic push
michael@0	19	#pragma GCC diagnostic ignored "-Wunused-function"
michael@0	20	G_DEFINE_TYPE(GstMozVideoBuffer, gst_moz_video_buffer, GST_TYPE_BUFFER);
michael@0	21	#pragma GCC diagnostic pop
michael@0	22
michael@0	23	static void
michael@0	24	gst_moz_video_buffer_class_init(GstMozVideoBufferClass* klass)
michael@0	25	{
michael@0	26	g_return_if_fail(GST_IS_MOZ_VIDEO_BUFFER_CLASS(klass));
michael@0	27
michael@0	28	GstMiniObjectClass *mo_class = GST_MINI_OBJECT_CLASS(klass);
michael@0	29
michael@0	30	mo_class->copy =(GstMiniObjectCopyFunction)gst_moz_video_buffer_copy;
michael@0	31	mo_class->finalize =(GstMiniObjectFinalizeFunction)gst_moz_video_buffer_finalize;
michael@0	32	}
michael@0	33
michael@0	34	static void
michael@0	35	gst_moz_video_buffer_init(GstMozVideoBuffer* self)
michael@0	36	{
michael@0	37	g_return_if_fail(GST_IS_MOZ_VIDEO_BUFFER(self));
michael@0	38	}
michael@0	39
michael@0	40	static void
michael@0	41	gst_moz_video_buffer_finalize(GstMozVideoBuffer* self)
michael@0	42	{
michael@0	43	g_return_if_fail(GST_IS_MOZ_VIDEO_BUFFER(self));
michael@0	44
michael@0	45	if(self->data)
michael@0	46	g_boxed_free(GST_TYPE_MOZ_VIDEO_BUFFER_DATA, self->data);
michael@0	47
michael@0	48	GST_MINI_OBJECT_CLASS(gst_moz_video_buffer_parent_class)->finalize(GST_MINI_OBJECT(self));
michael@0	49	}
michael@0	50
michael@0	51	static GstMozVideoBuffer*
michael@0	52	gst_moz_video_buffer_copy(GstMozVideoBuffer* self)
michael@0	53	{
michael@0	54	GstMozVideoBuffer* copy;
michael@0	55
michael@0	56	g_return_val_if_fail(GST_IS_MOZ_VIDEO_BUFFER(self), nullptr);
michael@0	57
michael@0	58	copy = gst_moz_video_buffer_new();
michael@0	59
michael@0	60	/* we simply copy everything from our parent */
michael@0	61	GST_BUFFER_DATA(GST_BUFFER_CAST(copy)) =
michael@0	62	(guint8*)g_memdup(GST_BUFFER_DATA(GST_BUFFER_CAST(self)), GST_BUFFER_SIZE(GST_BUFFER_CAST(self)));
michael@0	63
michael@0	64	/* make sure it gets freed(even if the parent is subclassed, we return a
michael@0	65	normal buffer) */
michael@0	66	GST_BUFFER_MALLOCDATA(GST_BUFFER_CAST(copy)) = GST_BUFFER_DATA(GST_BUFFER_CAST(copy));
michael@0	67	GST_BUFFER_SIZE(GST_BUFFER_CAST(copy)) = GST_BUFFER_SIZE(GST_BUFFER_CAST(self));
michael@0	68
michael@0	69	/* copy metadata */
michael@0	70	gst_buffer_copy_metadata(GST_BUFFER_CAST(copy),
michael@0	71	GST_BUFFER_CAST(self),
michael@0	72	(GstBufferCopyFlags)GST_BUFFER_COPY_ALL);
michael@0	73	/* copy videobuffer */
michael@0	74	if(self->data)
michael@0	75	copy->data = (GstMozVideoBufferData*)g_boxed_copy(GST_TYPE_MOZ_VIDEO_BUFFER_DATA, self->data);
michael@0	76
michael@0	77	return copy;
michael@0	78	}
michael@0	79
michael@0	80	GstMozVideoBuffer*
michael@0	81	gst_moz_video_buffer_new(void)
michael@0	82	{
michael@0	83	GstMozVideoBuffer *self;
michael@0	84
michael@0	85	self =(GstMozVideoBuffer*)gst_mini_object_new(GST_TYPE_MOZ_VIDEO_BUFFER);
michael@0	86	self->data = nullptr;
michael@0	87
michael@0	88	return self;
michael@0	89	}
michael@0	90
michael@0	91	void
michael@0	92	gst_moz_video_buffer_set_data(GstMozVideoBuffer* self, GstMozVideoBufferData* data)
michael@0	93	{
michael@0	94	g_return_if_fail(GST_IS_MOZ_VIDEO_BUFFER(self));
michael@0	95
michael@0	96	self->data = data;
michael@0	97	}
michael@0	98
michael@0	99	GstMozVideoBufferData*
michael@0	100	gst_moz_video_buffer_get_data(const GstMozVideoBuffer* self)
michael@0	101	{
michael@0	102	g_return_val_if_fail(GST_IS_MOZ_VIDEO_BUFFER(self), nullptr);
michael@0	103
michael@0	104	return self->data;
michael@0	105	}
michael@0	106
michael@0	107	GType
michael@0	108	gst_moz_video_buffer_data_get_type(void)
michael@0	109	{
michael@0	110	static volatile gsize g_define_type_id__volatile = 0;
michael@0	111
michael@0	112	if(g_once_init_enter(&g_define_type_id__volatile)) {
michael@0	113	GType g_define_type_id =
michael@0	114	g_boxed_type_register_static(g_intern_static_string("GstMozVideoBufferData"),
michael@0	115	(GBoxedCopyFunc)GstMozVideoBufferData::Copy,
michael@0	116	(GBoxedFreeFunc)GstMozVideoBufferData::Free);
michael@0	117	g_once_init_leave(&g_define_type_id__volatile, g_define_type_id);
michael@0	118	}
michael@0	119
michael@0	120	return g_define_type_id__volatile;
michael@0	121	}
michael@0	122
michael@0	123	}