1 /* 2 * GStreamer 3 * Copyright (C) 2013 Fluendo S.L. <support@fluendo.com> 4 * Authors: Andoni Morales Alastruey <amorales@fluendo.com> 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public 17 * License along with this library; if not, write to the 18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 19 * Boston, MA 02111-1307, USA. 20 */ 21 22 #ifndef __GST_AVF_ASSET_SRC_H__ 23 #define __GST_AVF_ASSET_SRC_H__ 24 25 #ifdef HAVE_CONFIG_H 26 # include "config.h" 27 #endif 28 29 #include <gst/gst.h> 30 #include <gst/base/base.h> 31 #include <gst/audio/audio.h> 32 #import <AVFoundation/AVFoundation.h> 33 #import <AVFoundation/AVAssetReader.h> 34 #import <AVFoundation/AVAssetReaderOutput.h> 35 36 G_BEGIN_DECLS 37 38 #define GST_TYPE_AVF_ASSET_SRC \ 39 (gst_avf_asset_src_get_type()) 40 #define GST_AVF_ASSET_SRC_READER(obj) \ 41 ((__bridge GstAVFAssetReader *)(obj->reader)) 42 #define GST_AVF_ASSET_SRC(obj) \ 43 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AVF_ASSET_SRC,GstAVFAssetSrc)) 44 #define GST_AVF_ASSET_SRC_CLASS(klass) \ 45 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AVF_ASSET_SRC,GstAVFAssetSrcClass)) 46 #define GST_IS_AVF_ASSET_SRC(obj) \ 47 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AVF_ASSET_SRC)) 48 #define GST_IS_AVF_ASSET_SRC_CLASS(klass) \ 49 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AVF_ASSET_SRC)) 50 #define GST_AVF_ASSET_SRC_ERROR gst_avf_asset_src_error_quark () 51 52 typedef struct _GstAVFAssetSrc GstAVFAssetSrc; 53 typedef struct _GstAVFAssetSrcClass GstAVFAssetSrcClass; 54 55 typedef enum 56 { 57 GST_AVF_ASSET_READER_MEDIA_TYPE_AUDIO, 58 GST_AVF_ASSET_READER_MEDIA_TYPE_VIDEO, 59 } GstAVFAssetReaderMediaType; 60 61 typedef enum 62 { 63 GST_AVF_ASSET_ERROR_NOT_PLAYABLE, 64 GST_AVF_ASSET_ERROR_INIT, 65 GST_AVF_ASSET_ERROR_START, 66 GST_AVF_ASSET_ERROR_READ, 67 } GstAVFAssetError; 68 69 typedef enum 70 { 71 GST_AVF_ASSET_SRC_STATE_STOPPED, 72 GST_AVF_ASSET_SRC_STATE_STARTED, 73 GST_AVF_ASSET_SRC_STATE_READING, 74 } GstAVFAssetSrcState; 75 76 @interface GstAVFAssetReader: NSObject 77 { 78 AVAsset *asset; 79 AVAssetReader *reader; 80 AVAssetReaderTrackOutput *video_track; 81 AVAssetReaderTrackOutput *audio_track; 82 NSArray *audio_tracks; 83 NSArray *video_tracks; 84 int selected_audio_track; 85 int selected_video_track; 86 GstCaps *audio_caps; 87 GstCaps *video_caps; 88 gboolean reading; 89 GstClockTime duration; 90 GstClockTime position; 91 } 92 93 @property GstClockTime duration; 94 @property GstClockTime position; 95 96 - (id) initWithURI:(gchar*) uri : (GError **) error; 97 - (void) start : (GError **) error; 98 - (void) stop; 99 - (void) seekTo: (guint64) start : (guint64) stop : (GError **) error; 100 - (BOOL) hasMediaType: (GstAVFAssetReaderMediaType) type; 101 - (GstCaps *) getCaps: (GstAVFAssetReaderMediaType) type; 102 - (BOOL) selectTrack: (GstAVFAssetReaderMediaType) type : (gint) index; 103 - (GstBuffer *) nextBuffer: (GstAVFAssetReaderMediaType) type : (GError **) error; 104 @end 105 106 struct _GstAVFAssetSrc 107 { 108 GstElement element; 109 110 GstPad *videopad; 111 GstPad *audiopad; 112 gint selected_video_track; 113 gint selected_audio_track; 114 115 /* NOTE: ARC no longer allows Objective-C pointers in structs. */ 116 /* Instead, use gpointer with explicit __bridge_* calls */ 117 gpointer reader; 118 119 GstAVFAssetSrcState state; 120 GMutex lock; 121 GstEvent *seek_event; 122 123 GstFlowReturn last_audio_pad_ret; 124 GstFlowReturn last_video_pad_ret; 125 126 /* Properties */ 127 gchar * uri; 128 }; 129 130 struct _GstAVFAssetSrcClass 131 { 132 GstElementClass parent_class; 133 }; 134 135 GType gst_avf_asset_src_get_type (void); 136 137 G_END_DECLS 138 139 #endif /* __GST_AVF_ASSET_SRC_H__ */ 140