1 /* ASF muxer plugin for GStreamer 2 * Copyright (C) 2009 Thiago Santos <thiagoss@embedded.ufcg.edu.br> 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public 15 * License along with this library; if not, write to the 16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 */ 19 20 21 #ifndef __GST_ASF_MUX_H__ 22 #define __GST_ASF_MUX_H__ 23 24 25 #include <gst/gst.h> 26 #include <gst/base/gstcollectpads.h> 27 #include <gst/riff/riff-media.h> 28 29 #include "gstasfobjects.h" 30 31 G_BEGIN_DECLS 32 #define GST_TYPE_ASF_MUX \ 33 (gst_asf_mux_get_type()) 34 #define GST_ASF_MUX(obj) \ 35 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ASF_MUX,GstAsfMux)) 36 #define GST_ASF_MUX_CLASS(klass) \ 37 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ASF_MUX,GstAsfMuxClass)) 38 #define GST_IS_ASF_MUX(obj) \ 39 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ASF_MUX)) 40 #define GST_IS_ASF_MUX_CLASS(klass) \ 41 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_ASF_MUX)) 42 #define GST_ASF_MUX_CAST(obj) ((GstAsfMux*)(obj)) 43 typedef struct _GstAsfMux GstAsfMux; 44 typedef struct _GstAsfMuxClass GstAsfMuxClass; 45 typedef struct _GstAsfPad GstAsfPad; 46 typedef struct _GstAsfAudioPad GstAsfAudioPad; 47 typedef struct _GstAsfVideoPad GstAsfVideoPad; 48 typedef enum _GstAsfMuxState GstAsfMuxState; 49 50 enum _GstAsfMuxState 51 { 52 GST_ASF_MUX_STATE_NONE, 53 GST_ASF_MUX_STATE_HEADERS, 54 GST_ASF_MUX_STATE_DATA, 55 GST_ASF_MUX_STATE_EOS 56 }; 57 58 struct _GstAsfPad 59 { 60 GstCollectData collect; 61 62 gboolean is_audio; 63 guint8 stream_number; 64 guint8 media_object_number; 65 guint32 bitrate; 66 67 GstClockTime play_duration; 68 GstClockTime first_ts; 69 70 GstBuffer *codec_data; 71 72 /* stream only metadata */ 73 GstTagList *taglist; 74 }; 75 76 struct _GstAsfAudioPad 77 { 78 GstAsfPad pad; 79 80 gst_riff_strf_auds audioinfo; 81 }; 82 83 struct _GstAsfVideoPad 84 { 85 GstAsfPad pad; 86 87 gst_riff_strf_vids vidinfo; 88 89 /* Simple Index Entries */ 90 GSList *simple_index; 91 gboolean has_keyframe; /* if we have received one at least */ 92 guint32 last_keyframe_packet; 93 guint16 last_keyframe_packet_count; 94 guint16 max_keyframe_packet_count; 95 GstClockTime next_index_time; 96 guint64 time_interval; 97 }; 98 99 struct _GstAsfMux 100 { 101 GstElement element; 102 103 /* output stream state */ 104 GstAsfMuxState state; 105 106 /* counter to assign stream numbers */ 107 guint8 stream_number; 108 109 /* counting variables */ 110 guint64 file_size; 111 guint64 data_object_size; 112 guint64 total_data_packets; 113 114 /* 115 * data object size field position 116 * needed for updating when finishing the file 117 */ 118 guint64 data_object_position; 119 guint64 file_properties_object_position; 120 121 /* payloads still to be sent in a packet */ 122 guint32 payload_data_size; 123 guint32 payload_parsing_info_size; 124 GSList *payloads; 125 126 Guid file_id; 127 128 /* properties */ 129 guint32 prop_packet_size; 130 guint64 prop_preroll; 131 gboolean prop_merge_stream_tags; 132 guint64 prop_padding; 133 gboolean prop_streamable; 134 135 /* same as properties, but those are stored here to be 136 * used without modification while muxing a single file */ 137 guint32 packet_size; 138 guint64 preroll; /* milliseconds */ 139 gboolean merge_stream_tags; 140 141 GstClockTime first_ts; 142 143 /* pads */ 144 GstPad *srcpad; 145 146 GstCollectPads *collect; 147 }; 148 149 struct _GstAsfMuxClass 150 { 151 GstElementClass parent_class; 152 }; 153 154 GType gst_asf_mux_get_type (void); 155 GST_ELEMENT_REGISTER_DECLARE (asfmux); 156 157 G_END_DECLS 158 #endif /* __GST_ASF_MUX_H__ */ 159