--- /dev/null
+/* GStreamer
+ * Copyright (C) 2013 Fluendo S.L. <support@fluendo.com>
+ * Authors: 2013 Andoni Morales Alastruey <amorales@fluendo.com>
+ *
+ * gstios_assetsrc.h:
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GST_IOS_ASSET_SRC_H__
+#define __GST_IOS_ASSET_SRC_H__
+
+#include <sys/types.h>
+
+#include <gst/gst.h>
+#include <gst/base/gstbasesrc.h>
+#include <AssetsLibrary/ALAssetsLibrary.h>
+#include <AssetsLibrary/ALAssetRepresentation.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_IOS_ASSET_SRC \
+ (gst_ios_asset_src_get_type())
+#define GST_IOS_ASSET_SRC(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_IOS_ASSET_SRC,GstIOSAssetSrc))
+#define GST_IOS_ASSET_SRC_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_IOS_ASSET_SRC,GstIOSAssetSrcClass))
+#define GST_IS_IOS_ASSET_SRC(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_IOS_ASSET_SRC))
+#define GST_IS_IOS_ASSET_SRC_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_IOS_ASSET_SRC))
+#define GST_IOS_ASSET_SRC_CAST(obj) ((GstIOSAssetSrc*) obj)
+
+typedef struct _GstIOSAssetSrc GstIOSAssetSrc;
+typedef struct _GstIOSAssetSrcClass GstIOSAssetSrcClass;
+
+@interface GstAssetsLibrary : ALAssetsLibrary
+{
+}
+
+@property (retain) ALAsset *asset;
+@property (retain) ALAssetRepresentation *result;
+
+- (ALAssetRepresentation *) assetForURLSync:(NSURL*) uri;
+@end
+
+/**
+ * GstIOSAssetSrc:
+ *
+ * Opaque #GstIOSAssetSrc structure.
+ */
+struct _GstIOSAssetSrc {
+ GstBaseSrc element;
+
+ /*< private >*/
+ gchar * uri; /* asset uri */
+ NSURL * url; /* asset url */
+ ALAssetRepresentation * asset; /* asset representation */
+ GstAssetsLibrary * library; /* assets library */
+};
+
+struct _GstIOSAssetSrcClass {
+ GstBaseSrcClass parent_class;
+};
+
+GType gst_ios_asset_src_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_IOS_ASSET_SRC_H__ */
--- /dev/null
+/* GStreamer
+ * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
+ * 2000,2005 Wim Taymans <wim@fluendo.com>
+ *
+ * gstios_assetsrc.c:
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+/**
+ * SECTION:element-ios_assetsrc
+ * @see_also: #GstIOSAssetSrc
+ *
+ * Read data from an iOS asset from the media library.
+ *
+ * <refsect2>
+ * <title>Example launch line</title>
+ * |[
+ * gst-launch iosassetsrc uri=assets-library://asset/asset.M4V?id=11&ext=M4V ! decodebin2 ! autoaudiosink
+ * ]| Plays asset with id a song.ogg from local dir.
+ * </refsect2>
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <gst/gst.h>
+#include "iosassetsrc.h"
+
+static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS_ANY);
+
+GST_DEBUG_CATEGORY_STATIC (gst_ios_asset_src_debug);
+#define GST_CAT_DEFAULT gst_ios_asset_src_debug
+
+
+#define DEFAULT_BLOCKSIZE 4*1024
+#define OBJC_CALLOUT_BEGIN() \
+ NSAutoreleasePool *pool; \
+ \
+ pool = [[NSAutoreleasePool alloc] init]
+#define OBJC_CALLOUT_END() \
+ [pool release]
+
+enum
+{
+ ARG_0,
+ ARG_URI,
+};
+
+static void gst_ios_asset_src_finalize (GObject * object);
+
+static void gst_ios_asset_src_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_ios_asset_src_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
+
+static gboolean gst_ios_asset_src_start (GstBaseSrc * basesrc);
+static gboolean gst_ios_asset_src_stop (GstBaseSrc * basesrc);
+
+static gboolean gst_ios_asset_src_is_seekable (GstBaseSrc * src);
+static gboolean gst_ios_asset_src_get_size (GstBaseSrc * src, guint64 * size);
+static GstFlowReturn gst_ios_asset_src_create (GstBaseSrc * src, guint64 offset,
+ guint length, GstBuffer ** buffer);
+static gboolean gst_ios_asset_src_query (GstBaseSrc * src, GstQuery * query);
+
+static void gst_ios_asset_src_uri_handler_init (gpointer g_iface,
+ gpointer iface_data);
+
+static void
+_do_init (GType ios_assetsrc_type)
+{
+ static const GInterfaceInfo urihandler_info = {
+ gst_ios_asset_src_uri_handler_init,
+ NULL,
+ NULL
+ };
+
+ g_type_add_interface_static (ios_assetsrc_type, GST_TYPE_URI_HANDLER,
+ &urihandler_info);
+ GST_DEBUG_CATEGORY_INIT (gst_ios_asset_src_debug, "iosassetsrc", 0, "iosassetsrc element");
+}
+
+GST_BOILERPLATE_FULL (GstIOSAssetSrc, gst_ios_asset_src, GstBaseSrc, GST_TYPE_BASE_SRC,
+ _do_init);
+
+static void
+gst_ios_asset_src_base_init (gpointer g_class)
+{
+ GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
+
+ gst_element_class_set_details_simple (gstelement_class,
+ "IOSAsset Source",
+ "Source/File",
+ "Read from arbitrary point in a iOS asset",
+ "Andoni Morales Alastruey <amorales@fluendo.com>");
+
+ gst_element_class_add_pad_template (gstelement_class,
+ gst_static_pad_template_get (&srctemplate));
+}
+
+static void
+gst_ios_asset_src_class_init (GstIOSAssetSrcClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstBaseSrcClass *gstbasesrc_class;
+
+ gobject_class = G_OBJECT_CLASS (klass);
+ gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
+
+ gobject_class->set_property = gst_ios_asset_src_set_property;
+ gobject_class->get_property = gst_ios_asset_src_get_property;
+
+ g_object_class_install_property (gobject_class, ARG_URI,
+ g_param_spec_string ("uri", "Asset URI",
+ "URI of the asset to read", NULL,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
+ GST_PARAM_MUTABLE_READY));
+
+ gobject_class->finalize = gst_ios_asset_src_finalize;
+
+ gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_ios_asset_src_start);
+ gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_ios_asset_src_stop);
+ gstbasesrc_class->is_seekable = GST_DEBUG_FUNCPTR (gst_ios_asset_src_is_seekable);
+ gstbasesrc_class->get_size = GST_DEBUG_FUNCPTR (gst_ios_asset_src_get_size);
+ gstbasesrc_class->create = GST_DEBUG_FUNCPTR (gst_ios_asset_src_create);
+ gstbasesrc_class->query = GST_DEBUG_FUNCPTR (gst_ios_asset_src_query);
+}
+
+static void
+gst_ios_asset_src_init (GstIOSAssetSrc * src, GstIOSAssetSrcClass * g_class)
+{
+ OBJC_CALLOUT_BEGIN ();
+ src->uri = NULL;
+ src->asset = NULL;
+ src->library = [[[GstAssetsLibrary alloc] init] retain];
+ gst_base_src_set_blocksize (GST_BASE_SRC (src), DEFAULT_BLOCKSIZE);
+ OBJC_CALLOUT_END ();
+}
+
+static void
+gst_ios_asset_src_free_resources (GstIOSAssetSrc *src)
+{
+ OBJC_CALLOUT_BEGIN ();
+ if (src->asset != NULL) {
+ [src->asset release];
+ src->asset = NULL;
+ }
+
+ if (src->url != NULL) {
+ [src->url release];
+ src->url = NULL;
+ }
+
+ if (src->uri != NULL) {
+ g_free (src->uri);
+ src->uri = NULL;
+ }
+ OBJC_CALLOUT_END ();
+}
+
+static void
+gst_ios_asset_src_finalize (GObject * object)
+{
+ GstIOSAssetSrc *src;
+
+ OBJC_CALLOUT_BEGIN ();
+ src = GST_IOS_ASSET_SRC (object);
+ gst_ios_asset_src_free_resources (src);
+ [src->library release];
+
+ OBJC_CALLOUT_END ();
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static gboolean
+gst_ios_asset_src_set_uri (GstIOSAssetSrc * src, const gchar * uri)
+{
+ GstState state;
+ NSString *nsuristr;
+ NSURL *url;
+
+ OBJC_CALLOUT_BEGIN ();
+ /* the element must be stopped in order to do this */
+ GST_OBJECT_LOCK (src);
+ state = GST_STATE (src);
+ if (state != GST_STATE_READY && state != GST_STATE_NULL)
+ goto wrong_state;
+ GST_OBJECT_UNLOCK (src);
+
+ gst_ios_asset_src_free_resources (src);
+
+ nsuristr = [[NSString alloc] initWithUTF8String:uri];
+ url = [[NSURL alloc] initWithString:nsuristr];
+
+ if (url == NULL) {
+ GST_ERROR_OBJECT (src, "Invalid URI : %s", src->uri);
+ return FALSE;
+ }
+
+ GST_INFO_OBJECT (src, "URI : %s", src->uri);
+ src->url = url;
+ src->uri = g_strdup (uri);
+ g_object_notify (G_OBJECT (src), "uri");
+ gst_uri_handler_new_uri (GST_URI_HANDLER (src), src->uri);
+
+ OBJC_CALLOUT_END ();
+ return TRUE;
+
+ /* ERROR */
+wrong_state:
+ {
+ g_warning ("Changing the 'uri' property on iosassetsrc when an asset is "
+ "open is not supported.");
+ GST_OBJECT_UNLOCK (src);
+ OBJC_CALLOUT_END ();
+ return FALSE;
+ }
+}
+
+static void
+gst_ios_asset_src_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstIOSAssetSrc *src;
+
+ g_return_if_fail (GST_IS_IOS_ASSET_SRC (object));
+
+ src = GST_IOS_ASSET_SRC (object);
+
+ switch (prop_id) {
+ case ARG_URI:
+ gst_ios_asset_src_set_uri (src, g_value_get_string (value));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_ios_asset_src_get_property (GObject * object, guint prop_id, GValue * value,
+ GParamSpec * pspec)
+{
+ GstIOSAssetSrc *src;
+
+ g_return_if_fail (GST_IS_IOS_ASSET_SRC (object));
+
+ src = GST_IOS_ASSET_SRC (object);
+
+ switch (prop_id) {
+ case ARG_URI:
+ g_value_set_string (value, src->uri);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static GstFlowReturn
+gst_ios_asset_src_create (GstBaseSrc * basesrc, guint64 offset, guint length,
+ GstBuffer ** buffer)
+{
+ GstBuffer *buf;
+ NSError *err = nil;
+ guint bytes_read;
+ GstFlowReturn ret;
+ GstIOSAssetSrc *src = GST_IOS_ASSET_SRC (basesrc);
+
+ OBJC_CALLOUT_BEGIN ();
+ buf = gst_buffer_try_new_and_alloc (length);
+ if (G_UNLIKELY (buf == NULL && length > 0)) {
+ GST_ERROR_OBJECT (src, "Failed to allocate %u bytes", length);
+ ret = GST_FLOW_ERROR;
+ goto exit;
+ }
+
+ /* No need to read anything if length is 0 */
+ GST_BUFFER_SIZE (buf) = 0;
+ GST_BUFFER_OFFSET (buf) = offset;
+ GST_BUFFER_OFFSET_END (buf) = offset;
+ bytes_read = [src->asset getBytes: GST_BUFFER_DATA (buf)
+ fromOffset:offset
+ length:length
+ error:&err];
+ if (G_UNLIKELY (err != NULL)) {
+ goto could_not_read;
+ }
+
+ /* we should eos if we read less than what was requested */
+ if (G_UNLIKELY (bytes_read < length)) {
+ goto eos;
+ }
+
+ GST_BUFFER_SIZE (buf) = bytes_read;
+ GST_BUFFER_OFFSET_END (buf) = offset + bytes_read;
+
+ *buffer = buf;
+
+ ret = GST_FLOW_OK;
+ goto exit;
+
+ /* ERROR */
+could_not_read:
+ {
+ GST_ELEMENT_ERROR (src, RESOURCE, READ, (NULL), GST_ERROR_SYSTEM);
+ gst_buffer_unref (buf);
+ ret = GST_FLOW_ERROR;
+ goto exit;
+ }
+eos:
+ {
+ GST_DEBUG ("EOS");
+ gst_buffer_unref (buf);
+ ret = GST_FLOW_UNEXPECTED;
+ goto exit;
+ }
+exit:
+ {
+ OBJC_CALLOUT_END ();
+ return ret;
+ }
+
+}
+
+static gboolean
+gst_ios_asset_src_query (GstBaseSrc * basesrc, GstQuery * query)
+{
+ gboolean ret = FALSE;
+ GstIOSAssetSrc *src = GST_IOS_ASSET_SRC (basesrc);
+
+ switch (GST_QUERY_TYPE (query)) {
+ case GST_QUERY_URI:
+ gst_query_set_uri (query, src->uri);
+ ret = TRUE;
+ break;
+ default:
+ ret = FALSE;
+ break;
+ }
+
+ if (!ret)
+ ret = GST_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
+
+ return ret;
+}
+
+static gboolean
+gst_ios_asset_src_is_seekable (GstBaseSrc * basesrc)
+{
+ return TRUE;
+}
+
+static gboolean
+gst_ios_asset_src_get_size (GstBaseSrc * basesrc, guint64 * size)
+{
+ GstIOSAssetSrc *src;
+
+ src = GST_IOS_ASSET_SRC (basesrc);
+
+ OBJC_CALLOUT_BEGIN ();
+ *size = (guint64) [src->asset size];
+ OBJC_CALLOUT_END ();
+ return TRUE;
+}
+
+static gboolean
+gst_ios_asset_src_start (GstBaseSrc * basesrc)
+{
+ GstIOSAssetSrc *src = GST_IOS_ASSET_SRC (basesrc);
+ gboolean ret = TRUE;
+
+ OBJC_CALLOUT_BEGIN ();
+ src->asset = [[src->library assetForURLSync: src->url] retain];
+
+ if (src->asset == NULL) {
+ GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
+ ("Could not open asset \"%s\" for reading.", src->uri),
+ GST_ERROR_SYSTEM);
+ ret = FALSE;
+ };
+
+ OBJC_CALLOUT_END ();
+ return ret;
+}
+
+/* unmap and close the ios_asset */
+static gboolean
+gst_ios_asset_src_stop (GstBaseSrc * basesrc)
+{
+ GstIOSAssetSrc *src = GST_IOS_ASSET_SRC (basesrc);
+
+ OBJC_CALLOUT_BEGIN ();
+ [src->asset release];
+ OBJC_CALLOUT_END ();
+ return TRUE;
+}
+
+static GstURIType
+gst_ios_asset_src_uri_get_type (void)
+{
+ return GST_URI_SRC;
+}
+
+static gchar **
+gst_ios_asset_src_uri_get_protocols (void)
+{
+ static gchar *protocols[] = { (char *) "assets-library", NULL };
+
+ return protocols;
+}
+
+static const gchar *
+gst_ios_asset_src_uri_get_uri (GstURIHandler * handler)
+{
+ GstIOSAssetSrc *src = GST_IOS_ASSET_SRC (handler);
+
+ return src->uri;
+}
+
+static gboolean
+gst_ios_asset_src_uri_set_uri (GstURIHandler * handler, const gchar * uri)
+{
+ GstIOSAssetSrc *src = GST_IOS_ASSET_SRC (handler);
+ GError *error = NULL;
+
+ if (! g_str_has_prefix (uri, "assets-library://")) {
+ GST_WARNING_OBJECT (src, "Invalid URI '%s' for ios_assetsrc: %s", uri,
+ error->message);
+ return FALSE;
+ }
+
+ return gst_ios_asset_src_set_uri (src, uri);
+}
+
+static void
+gst_ios_asset_src_uri_handler_init (gpointer g_iface, gpointer iface_data)
+{
+ GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
+
+ iface->get_type = gst_ios_asset_src_uri_get_type;
+ iface->get_protocols = gst_ios_asset_src_uri_get_protocols;
+ iface->get_uri = gst_ios_asset_src_uri_get_uri;
+ iface->set_uri = gst_ios_asset_src_uri_set_uri;
+}
+
+
+@implementation GstAssetsLibrary
+
+@synthesize asset;
+@synthesize result;
+
+- (id) init
+{
+ self = [super init];
+
+ return self;
+}
+
+- (ALAssetRepresentation *) assetForURLSync:(NSURL*) uri
+{
+ dispatch_semaphore_t sema = dispatch_semaphore_create(0);
+ dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT,0);
+
+ dispatch_async(queue, ^{
+ [self assetForURL:uri resultBlock:
+ ^(ALAsset *myasset)
+ {
+ self.asset = myasset;
+ self.result = [myasset defaultRepresentation];
+
+ dispatch_semaphore_signal(sema);
+ }
+ failureBlock:
+ ^(NSError *myerror)
+ {
+ self.result = nil;
+ dispatch_semaphore_signal(sema);
+ }
+ ];
+ });
+
+ dispatch_semaphore_wait(sema, DISPATCH_TIME_FOREVER);
+ dispatch_release(sema);
+
+ return self.result;
+}
+@end
projects / platform / upstream / gstreamer.git / commitdiff