46bbc60d24
All code interacting with Objective-C objects should now use Automated Reference Counting rather than manual memory management or Garbage Collection. Because ARC prohibits C-structs from containing references to Objective-C objects, all such fields are now typed 'gpointer'. Setting and gettings Objective-C fields on such a struct now uses explicit __bridge_* calls to tell ARC about object lifetimes. https://bugzilla.gnome.org/show_bug.cgi?id=777847
140 lines
3.9 KiB
Objective-C
140 lines
3.9 KiB
Objective-C
/*
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* GStreamer
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* Copyright (C) 2013 Fluendo S.L. <support@fluendo.com>
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* Authors: Andoni Morales Alastruey <amorales@fluendo.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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_AVF_ASSET_SRC_H__
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#define __GST_AVF_ASSET_SRC_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/gst.h>
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#include <gst/base/base.h>
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#include <gst/audio/audio.h>
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#import <AVFoundation/AVFoundation.h>
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#import <AVFoundation/AVAssetReader.h>
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#import <AVFoundation/AVAssetReaderOutput.h>
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G_BEGIN_DECLS
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#define GST_TYPE_AVF_ASSET_SRC \
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(gst_avf_asset_src_get_type())
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#define GST_AVF_ASSET_SRC_READER(obj) \
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((__bridge GstAVFAssetReader *)(obj->reader))
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#define GST_AVF_ASSET_SRC(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AVF_ASSET_SRC,GstAVFAssetSrc))
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#define GST_AVF_ASSET_SRC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AVF_ASSET_SRC,GstAVFAssetSrcClass))
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#define GST_IS_AVF_ASSET_SRC(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AVF_ASSET_SRC))
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#define GST_IS_AVF_ASSET_SRC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AVF_ASSET_SRC))
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#define GST_AVF_ASSET_SRC_ERROR gst_avf_asset_src_error_quark ()
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typedef struct _GstAVFAssetSrc GstAVFAssetSrc;
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typedef struct _GstAVFAssetSrcClass GstAVFAssetSrcClass;
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typedef enum
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{
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GST_AVF_ASSET_READER_MEDIA_TYPE_AUDIO,
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GST_AVF_ASSET_READER_MEDIA_TYPE_VIDEO,
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} GstAVFAssetReaderMediaType;
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typedef enum
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{
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GST_AVF_ASSET_ERROR_NOT_PLAYABLE,
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GST_AVF_ASSET_ERROR_INIT,
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GST_AVF_ASSET_ERROR_START,
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GST_AVF_ASSET_ERROR_READ,
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} GstAVFAssetError;
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typedef enum
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{
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GST_AVF_ASSET_SRC_STATE_STOPPED,
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GST_AVF_ASSET_SRC_STATE_STARTED,
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GST_AVF_ASSET_SRC_STATE_READING,
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} GstAVFAssetSrcState;
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@interface GstAVFAssetReader: NSObject
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{
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AVAsset *asset;
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AVAssetReader *reader;
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AVAssetReaderTrackOutput *video_track;
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AVAssetReaderTrackOutput *audio_track;
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NSArray *audio_tracks;
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NSArray *video_tracks;
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int selected_audio_track;
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int selected_video_track;
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GstCaps *audio_caps;
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GstCaps *video_caps;
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gboolean reading;
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GstClockTime duration;
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GstClockTime position;
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}
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@property GstClockTime duration;
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@property GstClockTime position;
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- (id) initWithURI:(gchar*) uri : (GError **) error;
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- (void) start : (GError **) error;
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- (void) stop;
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- (void) seekTo: (guint64) start : (guint64) stop : (GError **) error;
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- (BOOL) hasMediaType: (GstAVFAssetReaderMediaType) type;
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- (GstCaps *) getCaps: (GstAVFAssetReaderMediaType) type;
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- (BOOL) selectTrack: (GstAVFAssetReaderMediaType) type : (gint) index;
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- (GstBuffer *) nextBuffer: (GstAVFAssetReaderMediaType) type : (GError **) error;
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@end
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struct _GstAVFAssetSrc
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{
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GstElement element;
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GstPad *videopad;
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GstPad *audiopad;
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gint selected_video_track;
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gint selected_audio_track;
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/* NOTE: ARC no longer allows Objective-C pointers in structs. */
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/* Instead, use gpointer with explicit __bridge_* calls */
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gpointer reader;
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GstAVFAssetSrcState state;
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GMutex lock;
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GstEvent *seek_event;
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GstFlowReturn last_audio_pad_ret;
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GstFlowReturn last_video_pad_ret;
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/* Properties */
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gchar * uri;
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};
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struct _GstAVFAssetSrcClass
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{
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GstElementClass parent_class;
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};
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GType gst_avf_asset_src_get_type (void);
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G_END_DECLS
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#endif /* __GST_AVF_ASSET_SRC_H__ */
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