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1e785a3778
Code partially based on https://git.videolan.org/?p=ffmpeg.git;a=commit;h=74141f693ded2fbf75af56fff309d2db35183635 and based on the spec draft at https://wiki.xiph.org/OpusTS Makes it possible to demux http://www.obe.tv/Downloads/opus.ts https://bugzilla.gnome.org/show_bug.cgi?id=757049
237 lines
12 KiB
C
237 lines
12 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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, 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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/* Others */
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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] & 0x3)
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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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/* AC3_audio_stream_descriptor */
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#define DESC_AC_AUDIO_STREAM_bsid(desc) ((desc)[2] & 0x1f)
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/* FIXME : Move list of well know registration ids to an enum
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* in the mpegts library.
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*
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* See http://www.smpte-ra.org/mpegreg/mpegreg.html for a full list
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* */
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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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#define DRF_ID_DTS1 0x44545331
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#define DRF_ID_DTS2 0x44545332
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#define DRF_ID_DTS3 0x44545333
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#define DRF_ID_S302M 0x42535344
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#define DRF_ID_TSHV 0x54534856
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#define DRF_ID_AC3 0x41432d33
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#define DRF_ID_GA94 0x47413934
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#define DRF_ID_CUEI 0x43554549
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#define DRF_ID_ETV1 0x45545631
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#define DRF_ID_HEVC 0x48455643
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#define DRF_ID_KLVA 0x4b4c5641 /* defined in RP217 */
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#define DRF_ID_OPUS 0x4f707573
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#endif /* __GST_MPEG_DESC_H__ */
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