mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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535bf57d1f
with permission from the license header: """ This library is licensed under 2 different licenses and you can choose to use it under the terms of either one of them. The two licenses are the MPL 1.1 and the LGPL. """
339 lines
16 KiB
C
339 lines
16 KiB
C
/*
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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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* The Original Code is Fluendo MPEG Demuxer plugin.
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*
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* The Initial Developer of the Original Code is Fluendo, S.L.
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* Portions created by Fluendo, S.L. are Copyright (C) 2005
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* Fluendo, S.L. All Rights Reserved.
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*
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* Contributor(s): Wim Taymans <wim@fluendo.com>
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*
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*/
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#ifndef __GST_MPEG_DESC_H__
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#define __GST_MPEG_DESC_H__
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#include <glib.h>
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/*
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* descriptor_tag TS PS Identification
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* 0 n/a n/a Reserved
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* 1 n/a n/a Reserved
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* 2 X X video_stream_descriptor
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* 3 X X audio_stream_descriptor
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* 4 X X hierarchy_descriptor
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* 5 X X registration_descriptor
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* 6 X X data_stream_alignment_descriptor
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* 7 X X target_background_grid_descriptor
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* 8 X X video_window_descriptor
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* 9 X X CA_descriptor
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* 10 X X ISO_639_language_descriptor
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* 11 X X system_clock_descriptor
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* 12 X X multiplex_buffer_utilization_descriptor
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* 13 X X copyright_descriptor
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* 14 X maximum bitrate descriptor
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* 15 X X private data indicator descriptor
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* 16 X X smoothing buffer descriptor
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* 17 X STD_descriptor
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* 18 X X IBP descriptor
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* 19-63 n/a n/a ITU-T Rec. H.222.0 | ISO/IEC 13818-1 Reserved
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* 64-255 n/a n/a User Private
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*/
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#define DESC_VIDEO_STREAM 2
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#define DESC_AUDIO_STREAM 3
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#define DESC_HIERARCHY 4
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#define DESC_REGISTRATION 5
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#define DESC_DATA_STREAM_ALIGNMENT 6
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#define DESC_TARGET_BACKGROUND_GRID 7
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#define DESC_VIDEO_WINDOW 8
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#define DESC_CA 9
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#define DESC_ISO_639_LANGUAGE 10
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#define DESC_SYSTEM_CLOCK 11
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#define DESC_MULTIPLEX_BUFFER_UTILISATION 12
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#define DESC_COPYRIGHT 13
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#define DESC_MAXIMUM_BITRATE 14
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#define DESC_PRIVATE_DATA_INDICATOR 15
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#define DESC_SMOOTHING_BUFFER 16
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#define DESC_STD 17
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#define DESC_IBP 18
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#define DESC_DIRAC_TC_PRIVATE 0xAC
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/* DVB tags */
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#define DESC_DVB_CAROUSEL_IDENTIFIER 0x13
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#define DESC_DVB_NETWORK_NAME 0x40
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#define DESC_DVB_SERVICE_LIST 0x41
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#define DESC_DVB_STUFFING 0x42
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#define DESC_DVB_SATELLITE_DELIVERY_SYSTEM 0x43
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#define DESC_DVB_CABLE_DELIVERY_SYSTEM 0x44
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#define DESC_DVB_VBI_DATA 0x45
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#define DESC_DVB_VBI_TELETEXT 0x46
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#define DESC_DVB_BOUQUET_NAME 0x47
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#define DESC_DVB_SERVICE 0x48
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#define DESC_DVB_COUNTRY_AVAILABILITY 0x49
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#define DESC_DVB_LINKAGE 0x4A
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#define DESC_DVB_NVOD_REFERENCE 0x4B
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#define DESC_DVB_TIME_SHIFTED_SERVICE 0x4C
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#define DESC_DVB_SHORT_EVENT 0x4D
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#define DESC_DVB_EXTENDED_EVENT 0x4E
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#define DESC_DVB_TIME_SHIFTED_EVENT 0x4F
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#define DESC_DVB_COMPONENT 0x50
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#define DESC_DVB_MOSAIC 0x51
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#define DESC_DVB_STREAM_IDENTIFIER 0x52
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#define DESC_DVB_CA_IDENTIFIER 0x53
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#define DESC_DVB_CONTENT 0x54
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#define DESC_DVB_PARENTAL_RATING 0x55
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#define DESC_DVB_TELETEXT 0x56
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#define DESC_DVB_TELEPHONE 0x57
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#define DESC_DVB_LOCAL_TIME_OFFSET 0x58
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#define DESC_DVB_SUBTITLING 0x59
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#define DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM 0x5A
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#define DESC_DVB_MULTILINGUAL_NETWORK_NAME 0x5B
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#define DESC_DVB_MULTILINGUAL_BOUQUET_NAME 0x5C
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#define DESC_DVB_MULTILINGUAL_SERVICE_NAME 0x5D
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#define DESC_DVB_MULTILINGUAL_COMPONENT 0x5E
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#define DESC_DVB_PRIVATE_DATA 0x5F
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#define DESC_DVB_SERVICE_MOVE 0x60
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#define DESC_DVB_SHORT_SMOOTHING_BUFFER 0x61
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#define DESC_DVB_FREQUENCY_LIST 0x62
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#define DESC_DVB_PARTIAL_TRANSPORT_STREAM 0x63
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#define DESC_DVB_DATA_BROADCAST 0x64
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#define DESC_DVB_SCRAMBLING 0x65
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#define DESC_DVB_DATA_BROADCAST_ID 0x66
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#define DESC_DVB_TRANSPORT_STREAM 0x67
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#define DESC_DVB_DSNG 0x68
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#define DESC_DVB_PDC 0x69
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#define DESC_DVB_AC3 0x6A
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#define DESC_DVB_ANCILLARY_DATA 0x6B
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#define DESC_DVB_CELL_LIST 0x6C
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#define DESC_DVB_CELL_FREQUENCY_LINK 0x6D
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#define DESC_DVB_ANNOUNCEMENT_SUPPORT 0x6E
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#define DESC_DVB_APPLICATION_SIGNALLING 0x6F
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#define DESC_DVB_ADAPTATION_FIELD_DATA 0x70
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#define DESC_DVB_SERVICE_IDENTIFIER 0x71
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#define DESC_DVB_SERVICE_AVAILABILITY 0x72
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#define DESC_DVB_DEFAULT_AUTHORITY 0x73
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#define DESC_DVB_RELATED_CONTENT 0x74
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#define DESC_DVB_TVA_ID 0x75
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#define DESC_DVB_CONTENT_IDENTIFIER 0x76
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#define DESC_DVB_TIMESLICE_FEC_IDENTIFIER 0x77
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#define DESC_DVB_ECM_REPETITION_RATE 0x78
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#define DESC_DVB_S2_SATELLITE_DELIVERY_SYSTEM 0x79
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#define DESC_DVB_ENHANCED_AC3 0x7A
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#define DESC_DVB_DTS 0x7B
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#define DESC_DVB_AAC 0x7C
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/* 0x7D and 0x7E are reserved for future use */
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#define DESC_DVB_EXTENSION 0x7F
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/* 0x80 - 0xFE are user defined */
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#define DESC_DTG_LOGICAL_CHANNEL 0x83 /* from DTG D-Book */
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/* 0xFF is forbidden */
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/* common for all descriptors */
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#define DESC_TAG(desc) (desc[0])
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#define DESC_LENGTH(desc) (desc[1])
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/* video_stream_descriptor */
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#define DESC_VIDEO_STREAM_multiple_framerate_flag(desc) (((desc)[2] & 0x80) == 0x80)
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#define DESC_VIDEO_STREAM_frame_rate_code(desc) (((desc)[2] & 0x38) >> 3)
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#define DESC_VIDEO_STREAM_MPEG_1_only_flag(desc) (((desc)[2] & 0x04) == 0x04)
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#define DESC_VIDEO_STREAM_constrained_parameter_flag(desc) (((desc)[2] & 0x02) == 0x02)
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#define DESC_VIDEO_STREAM_still_picture_flag(desc) (((desc)[2] & 0x01) == 0x01)
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/* if (MPEG_1_only_flag == 1) */
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#define DESC_VIDEO_STREAM_profile_and_level_indication(desc) ((desc)[3])
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#define DESC_VIDEO_STREAM_chroma_format(desc) (((desc)[4] & 0xc0) >> 6)
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#define DESC_VIDEO_STREAM_frame_rate_extension_flag(desc) (((desc)[4] & 0x20) == 0x20)
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/* audio_stream_descriptor */
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#define DESC_AUDIO_STREAM_free_format_flag(desc) (((desc)[2] & 0x80) == 0x80)
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#define DESC_AUDIO_STREAM_ID(desc) (((desc)[2] & 0x40) == 0x40)
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#define DESC_AUDIO_STREAM_layer(desc) (((desc)[2] & 0x30) >> 4)
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#define DESC_AUDIO_STREAM_variable_rate_audio_indicator(desc) (((desc)[2] & 0x08) == 0x08)
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/* hierarchy_descriptor */
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#define DESC_HIERARCHY_hierarchy_type(desc) (((desc)[2] & 0x0f))
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#define DESC_HIERARCHY_hierarchy_layer_index(desc) (((desc)[3] & 0x3f))
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#define DESC_HIERARCHY_hierarchy_embedded_layer_index(desc) (((desc)[4] & 0x3f))
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#define DESC_HIERARCHY_hierarchy_channel(desc) (((desc)[5] & 0x3f))
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/* registration_descriptor */
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#define DESC_REGISTRATION_format_identifier(desc) (GST_READ_UINT32_BE ((desc)+2))
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#define DESC_REGISTRATION_additional_ident_info_len(desc) ((desc)[1] - 4)
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#define DESC_REGISTRATION_additional_ident_info(desc) (&(desc)[6])
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/* data_stream_alignment_descriptor */
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#define DESC_DATA_STREAM_ALIGNMENT_alignment_type(desc) ((desc)[2])
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/* target_background_grid_descriptor */
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#define DESC_TARGET_BACKGROUND_GRID_horizontal_size(desc) (GST_READ_UINT16_BE ((desc)+2) >> 2)
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#define DESC_TARGET_BACKGROUND_GRID_vertical_size(desc) ((GST_READ_UINT32_BE ((desc)+2) & 0x0003fff0) >> 4)
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#define DESC_TARGET_BACKGROUND_GRID_aspect_ratio_information(desc) ((desc)[5] & 0x0f)
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/* video_window_descriptor */
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#define DESC_VIDEO_WINDOW_horizontal_offset(desc) (GST_READ_UINT16_BE ((desc)+2) >> 2)
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#define DESC_VIDEO_WINDOW_vertical_offset(desc) ((GST_READ_UINT32_BE ((desc)+2) & 0x0003fff0) >> 4)
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#define DESC_VIDEO_WINDOW_window_priority(desc) ((desc)[5] & 0x0f)
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/* CA_descriptor */
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#define DESC_CA_system_ID(desc) (GST_READ_UINT16_BE ((desc)+2))
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#define DESC_CA_PID(desc) (GST_READ_UINT16_BE ((desc)+2) & 0x1fff)
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/* ISO_639_language_descriptor */
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#define DESC_ISO_639_LANGUAGE_codes_n(desc) ((desc[1]) >> 2)
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#define DESC_ISO_639_LANGUAGE_language_code_nth(desc,i) (&(desc[2 + (4*i)]))
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#define DESC_ISO_639_LANGUAGE_audio_type_nth(desc,i) ((desc)[5 + (4*i)])
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/* system_clock_descriptor */
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#define DESC_SYSTEM_CLOCK_external_clock_reference_indicator(desc) (((desc)[2] & 0x80) == 0x80)
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#define DESC_SYSTEM_CLOCK_clock_accuracy_integer(desc) ((desc)[2] & 0x3f)
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#define DESC_SYSTEM_CLOCK_clock_accuracy_exponent(desc) (((desc)[3] & 0xe0) >> 5)
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/* multiplex_buffer_utilization_descriptor */
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#define DESC_MULTIPLEX_BUFFER_UTILISATION_bound_valid_flag(desc) (((desc)[2] & 0x80) == 0x80)
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#define DESC_MULTIPLEX_BUFFER_UTILISATION_LTW_offset_lower_bound(desc) (GST_READ_UINT16_BE ((desc)+2) & 0x7fff)
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#define DESC_MULTIPLEX_BUFFER_UTILISATION_LTW_offset_upper_bound(desc) (GST_READ_UINT16_BE ((desc)+4) & 0x7fff)
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/* copyright_descriptor */
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#define DESC_COPYRIGHT_copyright_identifier(desc) (GST_READ_UINT32_BE ((desc)+2))
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#define DESC_COPYRIGHT_additional_copyright_info_len(desc) ((desc)[1] - 4)
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#define DESC_COPYRIGHT_additional_copyright_info(desc) (&(desc)[6])
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/* maximum_bitrate_descriptor */
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#define DESC_MAXIMUM_BITRAT_maximum_bitrate(desc) (((((guint32)desc[2]) & 0x3f) << 16) | \
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GST_READ_UINT16_BE ((desc)+3))
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/* private_data_indicator_descriptor */
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#define DESC_PRIVATE_DATA_INDICATOR_indicator(desc) (GST_READ_UINT32_BE(&desc[2]))
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/* smoothing_buffer_descriptor */
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#define DESC_SMOOTHING_BUFFER_sb_leak_rate(desc) (((((guint32)desc[2]) & 0x3f) << 16) | \
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GST_READ_UINT16_BE ((desc)+3))
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#define DESC_SMOOTHING_BUFFER_sb_size(desc) (((((guint32)desc[5]) & 0x3f) << 16) | \
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GST_READ_UINT16_BE ((desc)+6))
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/* STD_descriptor */
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#define DESC_STD_leak_valid_flag(desc) (((desc)[2] & 0x01) == 0x01)
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/* ibp_descriptor */
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#define DESC_IBP_closed_gop_flag(desc) (((desc)[2] & 0x80) == 0x80)
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#define DESC_IBP_identical_gop_flag(desc) (((desc)[2] & 0x40) == 0x40)
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#define DESC_IBP_max_gop_length(desc) (GST_READ_UINT16_BE ((desc)+6) & 0x3fff)
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/* time_code descriptor */
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#define DESC_TIMECODE_video_pid(desc) (GST_READ_UINT16_BE ((desc) + 2) & 0x1fff)
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/* Stream identifier descriptor */
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#define DESC_DVB_STREAM_IDENTIFIER_component_tag(desc) (desc[2])
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/* DVB Network Name descriptor */
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#define DESC_DVB_NETWORK_NAME_length(desc) (GST_READ_UINT8((desc)+1))
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#define DESC_DVB_NETWORK_NAME_text(desc) (desc+2)
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/* DVB Service Descriptor */
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#define DESC_DVB_SERVICE_type(desc) (desc[2])
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#define DESC_DVB_SERVICE_provider_name_length(desc) (desc[3])
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#define DESC_DVB_SERVICE_provider_name_text(desc) (desc+4)
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#define DESC_DVB_SERVICE_name_length(desc) (desc[4 + DESC_DVB_SERVICE_provider_name_length(desc)])
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#define DESC_DVB_SERVICE_name_text(desc) (desc + 5 + DESC_DVB_SERVICE_provider_name_length(desc))
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/* DVB Component Descriptor */
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#define DESC_DVB_COMPONENT_stream_content(desc) (desc[2] & 0x0F)
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#define DESC_DVB_COMPONENT_type(desc) (desc[3])
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#define DESC_DVB_COMPONENT_tag(desc) (desc[4])
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#define DESC_DVB_COMPONENT_language(desc) (desc + 5)
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/* DVB Bouquet Name Descriptor */
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#define DESC_DVB_BOUQUET_NAME_text(desc) (desc + 2)
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/* DVB Short Event Descriptor */
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#define DESC_DVB_SHORT_EVENT_name_text(desc) (desc + 6)
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#define DESC_DVB_SHORT_EVENT_name_length(desc) (desc[5])
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#define DESC_DVB_SHORT_EVENT_description_text(desc) (desc + 6 + DESC_DVB_SHORT_EVENT_name_length(desc) + 1)
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#define DESC_DVB_SHORT_EVENT_description_length(desc) (desc[6 + DESC_DVB_SHORT_EVENT_name_length(desc)])
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/* DVB Extended Event Descriptor */
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#define DESC_DVB_EXTENDED_EVENT_descriptor_number(desc) ((desc[2] & 0xF0) >> 4)
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#define DESC_DVB_EXTENDED_EVENT_last_descriptor_number(desc) (desc[2] & 0x0F)
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#define DESC_DVB_EXTENDED_EVENT_iso639_language_code(desc) (desc + 3)
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#define DESC_DVB_EXTENDED_EVENT_items_length(desc) (desc[6])
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#define DESC_DVB_EXTENDED_EVENT_items(desc) (desc + 7)
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#define DESC_DVB_EXTENDED_EVENT_text_length(desc) (desc[7 + DESC_DVB_EXTENDED_EVENT_items_length(desc)])
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#define DESC_DVB_EXTENDED_EVENT_text(desc) (desc + 7 + DESC_DVB_EXTENDED_EVENT_items_length(desc) + 1)
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/* DVB Satellite Delivery System Descriptor */
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#define DESC_DVB_SATELLITE_DELIVERY_SYSTEM_frequency(desc) (desc + 2)
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#define DESC_DVB_SATELLITE_DELIVERY_SYSTEM_orbital_position(desc) (desc + 6)
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#define DESC_DVB_SATELLITE_DELIVERY_SYSTEM_west_east_flag(desc) ((desc[8] & 0x80) == 0x80)
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#define DESC_DVB_SATELLITE_DELIVERY_SYSTEM_polarization(desc) ((desc[8] >> 5) & 0x3)
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#define DESC_DVB_SATELLITE_DELIVERY_SYSTEM_modulation(desc) (desc[8] & 0x1F)
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#define DESC_DVB_SATELLITE_DELIVERY_SYSTEM_symbol_rate(desc) (desc + 9)
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#define DESC_DVB_SATELLITE_DELIVERY_SYSTEM_fec_inner(desc) (desc[12] & 0x0F)
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/* DVB Terrestrial Delivery System Descriptor */
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#define DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM_frequency(desc) (GST_READ_UINT32_BE((desc) + 2))
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#define DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM_bandwidth(desc) ((desc[6] >> 5) & 0x7)
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#define DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM_constellation(desc) ((desc[7] >> 6) & 0x3)
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#define DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM_hierarchy(desc) ((desc[7] >> 3) & 0x7)
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#define DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM_code_rate_hp(desc) (desc[7] & 0x7)
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#define DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM_code_rate_lp(desc) ((desc[8] >> 5) & 0x7)
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#define DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM_guard_interval(desc) ((desc[8] >> 3) & 0x3)
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#define DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM_transmission_mode(desc) ((desc[8] >> 1) & 0x3)
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#define DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM_other_frequency(desc) ((desc[8] & 0x01) == 0x01)
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/* DVB Cable Delivery System Descriptor */
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#define DESC_DVB_CABLE_DELIVERY_SYSTEM_frequency(desc) (desc + 2)
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#define DESC_DVB_CABLE_DELIVERY_SYSTEM_fec_outer(desc) (desc[7] & 0x0F)
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#define DESC_DVB_CABLE_DELIVERY_SYSTEM_modulation(desc) (desc[8])
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#define DESC_DVB_CABLE_DELIVERY_SYSTEM_symbol_rate(desc) (desc + 9)
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#define DESC_DVB_CABLE_DELIVERY_SYSTEM_fec_inner(desc) (desc[12] & 0x0F)
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/* DVB Data Broadcast Descriptor */
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#define DESC_DVB_DATA_BROADCAST_data_broadcast_id(desc) (GST_READ_UINT16_BE((desc) + 2))
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#define DESC_DVB_DATA_BROADCAST_component_tag(desc) (desc[4])
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#define DESC_DVB_DATA_BROADCAST_selector_length(desc) (desc[5])
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#define DESC_DVB_DATA_BROADCAST_selector(desc) (desc + 6)
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#define DESC_DVB_DATA_BROADCAST_iso639_language_code(desc) (desc + 6 + DESC_DVB_DATA_BROADCAST_selector_length(desc))
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#define DESC_DVB_DATA_BROADCAST_text_length(desc) (desc + 9 + DESC_DVB_DATA_BROADCAST_selector_length(desc))
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#define DESC_DVB_DATA_BROADCAST_text(desc) (desc + 10 + DESC_DVB_DATA_BROADCAST_selector_length(desc))
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/* DVB Data Broadcast Id Descriptor */
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#define DESC_DVB_DATA_BROADCAST_ID_data_broadcast_id(desc) (GST_READ_UINT16_BE((desc) + 2))
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#define DESC_DVB_DATA_BROADCAST_ID_id_selector_byte(desc) (desc + 4)
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/* DVB Carousel Identifier Descriptor */
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#define DESC_DVB_CAROUSEL_IDENTIFIER_carousel_id(desc) (GST_READ_UINT32_BE((desc) + 2))
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/* registration_descriptor format IDs */
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#define DRF_ID_HDMV 0x48444d56
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#define DRF_ID_VC1 0x56432D31 /* defined in RP227 */
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typedef struct {
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guint n_desc;
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guint8 data_length;
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guint8 *data;
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} GstMPEGDescriptor;
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void gst_mpegtsdesc_init_debug (void);
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GstMPEGDescriptor* gst_mpeg_descriptor_parse (guint8 *data, guint size);
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void gst_mpeg_descriptor_free (GstMPEGDescriptor *desc);
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guint gst_mpeg_descriptor_n_desc (GstMPEGDescriptor *desc);
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guint8* gst_mpeg_descriptor_find (GstMPEGDescriptor *desc, gint tag);
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GArray* gst_mpeg_descriptor_find_all (GstMPEGDescriptor * desc, gint tag);
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guint8* gst_mpeg_descriptor_nth (GstMPEGDescriptor *desc, guint i);
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#endif /* __GST_MPEG_DESC_H__ */
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