| /* |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public |
| * License along with this library; if not, write to the |
| * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| * The Original Code is Fluendo MPEG Demuxer plugin. |
| * |
| * The Initial Developer of the Original Code is Fluendo, S.L. |
| * Portions created by Fluendo, S.L. are Copyright (C) 2005 |
| * Fluendo, S.L. All Rights Reserved. |
| * |
| * Contributor(s): Wim Taymans <wim@fluendo.com> |
| * |
| */ |
| |
| #ifndef __GST_MPEG_DESC_H__ |
| #define __GST_MPEG_DESC_H__ |
| |
| #include <glib.h> |
| |
| |
| /* Others */ |
| |
| |
| /* 0xFF is forbidden */ |
| |
| /* common for all descriptors */ |
| #define DESC_TAG(desc) (desc[0]) |
| #define DESC_LENGTH(desc) (desc[1]) |
| |
| /* video_stream_descriptor */ |
| #define DESC_VIDEO_STREAM_multiple_framerate_flag(desc) (((desc)[2] & 0x80) == 0x80) |
| #define DESC_VIDEO_STREAM_frame_rate_code(desc) (((desc)[2] & 0x38) >> 3) |
| #define DESC_VIDEO_STREAM_MPEG_1_only_flag(desc) (((desc)[2] & 0x04) == 0x04) |
| #define DESC_VIDEO_STREAM_constrained_parameter_flag(desc) (((desc)[2] & 0x02) == 0x02) |
| #define DESC_VIDEO_STREAM_still_picture_flag(desc) (((desc)[2] & 0x01) == 0x01) |
| /* if (MPEG_1_only_flag == 1) */ |
| #define DESC_VIDEO_STREAM_profile_and_level_indication(desc) ((desc)[3]) |
| #define DESC_VIDEO_STREAM_chroma_format(desc) (((desc)[4] & 0xc0) >> 6) |
| #define DESC_VIDEO_STREAM_frame_rate_extension_flag(desc) (((desc)[4] & 0x20) == 0x20) |
| |
| /* audio_stream_descriptor */ |
| #define DESC_AUDIO_STREAM_free_format_flag(desc) (((desc)[2] & 0x80) == 0x80) |
| #define DESC_AUDIO_STREAM_ID(desc) (((desc)[2] & 0x40) == 0x40) |
| #define DESC_AUDIO_STREAM_layer(desc) (((desc)[2] & 0x30) >> 4) |
| #define DESC_AUDIO_STREAM_variable_rate_audio_indicator(desc) (((desc)[2] & 0x08) == 0x08) |
| |
| /* hierarchy_descriptor */ |
| #define DESC_HIERARCHY_hierarchy_type(desc) (((desc)[2] & 0x0f)) |
| #define DESC_HIERARCHY_hierarchy_layer_index(desc) (((desc)[3] & 0x3f)) |
| #define DESC_HIERARCHY_hierarchy_embedded_layer_index(desc) (((desc)[4] & 0x3f)) |
| #define DESC_HIERARCHY_hierarchy_channel(desc) (((desc)[5] & 0x3f)) |
| |
| /* registration_descriptor */ |
| #define DESC_REGISTRATION_format_identifier(desc) (GST_READ_UINT32_BE ((desc)+2)) |
| #define DESC_REGISTRATION_additional_ident_info_len(desc) ((desc)[1] - 4) |
| #define DESC_REGISTRATION_additional_ident_info(desc) (&(desc)[6]) |
| |
| /* data_stream_alignment_descriptor */ |
| #define DESC_DATA_STREAM_ALIGNMENT_alignment_type(desc) ((desc)[2]) |
| |
| /* target_background_grid_descriptor */ |
| #define DESC_TARGET_BACKGROUND_GRID_horizontal_size(desc) (GST_READ_UINT16_BE ((desc)+2) >> 2) |
| #define DESC_TARGET_BACKGROUND_GRID_vertical_size(desc) ((GST_READ_UINT32_BE ((desc)+2) & 0x0003fff0) >> 4) |
| #define DESC_TARGET_BACKGROUND_GRID_aspect_ratio_information(desc) ((desc)[5] & 0x0f) |
| |
| /* video_window_descriptor */ |
| #define DESC_VIDEO_WINDOW_horizontal_offset(desc) (GST_READ_UINT16_BE ((desc)+2) >> 2) |
| #define DESC_VIDEO_WINDOW_vertical_offset(desc) ((GST_READ_UINT32_BE ((desc)+2) & 0x0003fff0) >> 4) |
| #define DESC_VIDEO_WINDOW_window_priority(desc) ((desc)[5] & 0x0f) |
| |
| /* CA_descriptor */ |
| #define DESC_CA_system_ID(desc) (GST_READ_UINT16_BE ((desc)+2)) |
| #define DESC_CA_PID(desc) (GST_READ_UINT16_BE ((desc)+2) & 0x1fff) |
| |
| /* ISO_639_language_descriptor */ |
| #define DESC_ISO_639_LANGUAGE_codes_n(desc) ((desc[1]) >> 2) |
| #define DESC_ISO_639_LANGUAGE_language_code_nth(desc,i) (&(desc[2 + (4*i)])) |
| #define DESC_ISO_639_LANGUAGE_audio_type_nth(desc,i) ((desc)[5 + (4*i)]) |
| |
| /* system_clock_descriptor */ |
| #define DESC_SYSTEM_CLOCK_external_clock_reference_indicator(desc) (((desc)[2] & 0x80) == 0x80) |
| #define DESC_SYSTEM_CLOCK_clock_accuracy_integer(desc) ((desc)[2] & 0x3f) |
| #define DESC_SYSTEM_CLOCK_clock_accuracy_exponent(desc) (((desc)[3] & 0xe0) >> 5) |
| |
| /* multiplex_buffer_utilization_descriptor */ |
| #define DESC_MULTIPLEX_BUFFER_UTILISATION_bound_valid_flag(desc) (((desc)[2] & 0x80) == 0x80) |
| #define DESC_MULTIPLEX_BUFFER_UTILISATION_LTW_offset_lower_bound(desc) (GST_READ_UINT16_BE ((desc)+2) & 0x7fff) |
| #define DESC_MULTIPLEX_BUFFER_UTILISATION_LTW_offset_upper_bound(desc) (GST_READ_UINT16_BE ((desc)+4) & 0x7fff) |
| |
| /* copyright_descriptor */ |
| #define DESC_COPYRIGHT_copyright_identifier(desc) (GST_READ_UINT32_BE ((desc)+2)) |
| #define DESC_COPYRIGHT_additional_copyright_info_len(desc) ((desc)[1] - 4) |
| #define DESC_COPYRIGHT_additional_copyright_info(desc) (&(desc)[6]) |
| |
| /* maximum_bitrate_descriptor */ |
| #define DESC_MAXIMUM_BITRAT_maximum_bitrate(desc) (((((guint32)desc[2]) & 0x3f) << 16) | \ |
| GST_READ_UINT16_BE ((desc)+3)) |
| |
| /* private_data_indicator_descriptor */ |
| #define DESC_PRIVATE_DATA_INDICATOR_indicator(desc) (GST_READ_UINT32_BE(&desc[2])) |
| |
| /* smoothing_buffer_descriptor */ |
| #define DESC_SMOOTHING_BUFFER_sb_leak_rate(desc) (((((guint32)desc[2]) & 0x3f) << 16) | \ |
| GST_READ_UINT16_BE ((desc)+3)) |
| #define DESC_SMOOTHING_BUFFER_sb_size(desc) (((((guint32)desc[5]) & 0x3f) << 16) | \ |
| GST_READ_UINT16_BE ((desc)+6)) |
| /* STD_descriptor */ |
| #define DESC_STD_leak_valid_flag(desc) (((desc)[2] & 0x01) == 0x01) |
| |
| /* ibp_descriptor */ |
| #define DESC_IBP_closed_gop_flag(desc) (((desc)[2] & 0x80) == 0x80) |
| #define DESC_IBP_identical_gop_flag(desc) (((desc)[2] & 0x40) == 0x40) |
| #define DESC_IBP_max_gop_length(desc) (GST_READ_UINT16_BE ((desc)+6) & 0x3fff) |
| |
| /* time_code descriptor */ |
| #define DESC_TIMECODE_video_pid(desc) (GST_READ_UINT16_BE ((desc) + 2) & 0x1fff) |
| |
| /* Stream identifier descriptor */ |
| #define DESC_DVB_STREAM_IDENTIFIER_component_tag(desc) (desc[2]) |
| |
| /* DVB Network Name descriptor */ |
| #define DESC_DVB_NETWORK_NAME_length(desc) (GST_READ_UINT8((desc)+1)) |
| #define DESC_DVB_NETWORK_NAME_text(desc) (desc+2) |
| |
| /* DVB Service Descriptor */ |
| #define DESC_DVB_SERVICE_type(desc) (desc[2]) |
| #define DESC_DVB_SERVICE_provider_name_length(desc) (desc[3]) |
| #define DESC_DVB_SERVICE_provider_name_text(desc) (desc+4) |
| #define DESC_DVB_SERVICE_name_length(desc) (desc[4 + DESC_DVB_SERVICE_provider_name_length(desc)]) |
| #define DESC_DVB_SERVICE_name_text(desc) (desc + 5 + DESC_DVB_SERVICE_provider_name_length(desc)) |
| |
| /* DVB Component Descriptor */ |
| #define DESC_DVB_COMPONENT_stream_content(desc) (desc[2] & 0x0F) |
| #define DESC_DVB_COMPONENT_type(desc) (desc[3]) |
| #define DESC_DVB_COMPONENT_tag(desc) (desc[4]) |
| #define DESC_DVB_COMPONENT_language(desc) (desc + 5) |
| |
| /* DVB Bouquet Name Descriptor */ |
| #define DESC_DVB_BOUQUET_NAME_text(desc) (desc + 2) |
| |
| /* DVB Short Event Descriptor */ |
| #define DESC_DVB_SHORT_EVENT_name_text(desc) (desc + 6) |
| #define DESC_DVB_SHORT_EVENT_name_length(desc) (desc[5]) |
| #define DESC_DVB_SHORT_EVENT_description_text(desc) (desc + 6 + DESC_DVB_SHORT_EVENT_name_length(desc) + 1) |
| #define DESC_DVB_SHORT_EVENT_description_length(desc) (desc[6 + DESC_DVB_SHORT_EVENT_name_length(desc)]) |
| |
| /* DVB Extended Event Descriptor */ |
| #define DESC_DVB_EXTENDED_EVENT_descriptor_number(desc) ((desc[2] & 0xF0) >> 4) |
| #define DESC_DVB_EXTENDED_EVENT_last_descriptor_number(desc) (desc[2] & 0x0F) |
| #define DESC_DVB_EXTENDED_EVENT_iso639_language_code(desc) (desc + 3) |
| #define DESC_DVB_EXTENDED_EVENT_items_length(desc) (desc[6]) |
| #define DESC_DVB_EXTENDED_EVENT_items(desc) (desc + 7) |
| #define DESC_DVB_EXTENDED_EVENT_text_length(desc) (desc[7 + DESC_DVB_EXTENDED_EVENT_items_length(desc)]) |
| #define DESC_DVB_EXTENDED_EVENT_text(desc) (desc + 7 + DESC_DVB_EXTENDED_EVENT_items_length(desc) + 1) |
| |
| /* DVB Satellite Delivery System Descriptor */ |
| #define DESC_DVB_SATELLITE_DELIVERY_SYSTEM_frequency(desc) (desc + 2) |
| #define DESC_DVB_SATELLITE_DELIVERY_SYSTEM_orbital_position(desc) (desc + 6) |
| #define DESC_DVB_SATELLITE_DELIVERY_SYSTEM_west_east_flag(desc) ((desc[8] & 0x80) == 0x80) |
| #define DESC_DVB_SATELLITE_DELIVERY_SYSTEM_polarization(desc) ((desc[8] >> 5) & 0x3) |
| #define DESC_DVB_SATELLITE_DELIVERY_SYSTEM_modulation(desc) (desc[8] & 0x3) |
| #define DESC_DVB_SATELLITE_DELIVERY_SYSTEM_symbol_rate(desc) (desc + 9) |
| #define DESC_DVB_SATELLITE_DELIVERY_SYSTEM_fec_inner(desc) (desc[12] & 0x0F) |
| |
| /* DVB Terrestrial Delivery System Descriptor */ |
| #define DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM_frequency(desc) (GST_READ_UINT32_BE((desc) + 2)) |
| #define DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM_bandwidth(desc) ((desc[6] >> 5) & 0x7) |
| #define DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM_constellation(desc) ((desc[7] >> 6) & 0x3) |
| #define DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM_hierarchy(desc) ((desc[7] >> 3) & 0x7) |
| #define DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM_code_rate_hp(desc) (desc[7] & 0x7) |
| #define DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM_code_rate_lp(desc) ((desc[8] >> 5) & 0x7) |
| #define DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM_guard_interval(desc) ((desc[8] >> 3) & 0x3) |
| #define DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM_transmission_mode(desc) ((desc[8] >> 1) & 0x3) |
| #define DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM_other_frequency(desc) ((desc[8] & 0x01) == 0x01) |
| |
| /* DVB Cable Delivery System Descriptor */ |
| #define DESC_DVB_CABLE_DELIVERY_SYSTEM_frequency(desc) (desc + 2) |
| #define DESC_DVB_CABLE_DELIVERY_SYSTEM_fec_outer(desc) (desc[7] & 0x0F) |
| #define DESC_DVB_CABLE_DELIVERY_SYSTEM_modulation(desc) (desc[8]) |
| #define DESC_DVB_CABLE_DELIVERY_SYSTEM_symbol_rate(desc) (desc + 9) |
| #define DESC_DVB_CABLE_DELIVERY_SYSTEM_fec_inner(desc) (desc[12] & 0x0F) |
| |
| /* DVB Data Broadcast Descriptor */ |
| #define DESC_DVB_DATA_BROADCAST_data_broadcast_id(desc) (GST_READ_UINT16_BE((desc) + 2)) |
| #define DESC_DVB_DATA_BROADCAST_component_tag(desc) (desc[4]) |
| #define DESC_DVB_DATA_BROADCAST_selector_length(desc) (desc[5]) |
| #define DESC_DVB_DATA_BROADCAST_selector(desc) (desc + 6) |
| #define DESC_DVB_DATA_BROADCAST_iso639_language_code(desc) (desc + 6 + DESC_DVB_DATA_BROADCAST_selector_length(desc)) |
| #define DESC_DVB_DATA_BROADCAST_text_length(desc) (desc + 9 + DESC_DVB_DATA_BROADCAST_selector_length(desc)) |
| #define DESC_DVB_DATA_BROADCAST_text(desc) (desc + 10 + DESC_DVB_DATA_BROADCAST_selector_length(desc)) |
| |
| /* DVB Data Broadcast Id Descriptor */ |
| #define DESC_DVB_DATA_BROADCAST_ID_data_broadcast_id(desc) (GST_READ_UINT16_BE((desc) + 2)) |
| #define DESC_DVB_DATA_BROADCAST_ID_id_selector_byte(desc) (desc + 4) |
| |
| /* DVB Carousel Identifier Descriptor */ |
| #define DESC_DVB_CAROUSEL_IDENTIFIER_carousel_id(desc) (GST_READ_UINT32_BE((desc) + 2)) |
| |
| /* AC3_audio_stream_descriptor */ |
| #define DESC_AC_AUDIO_STREAM_bsid(desc) ((desc)[2] & 0x1f) |
| |
| /* FIXME : Move list of well know registration ids to an enum |
| * in the mpegts library. |
| * |
| * See http://www.smpte-ra.org/mpegreg/mpegreg.html for a full list |
| * */ |
| |
| /* registration_descriptor format IDs */ |
| #define DRF_ID_HDMV 0x48444d56 |
| #define DRF_ID_VC1 0x56432D31 /* defined in RP227 */ |
| #define DRF_ID_DTS1 0x44545331 |
| #define DRF_ID_DTS2 0x44545332 |
| #define DRF_ID_DTS3 0x44545333 |
| #define DRF_ID_S302M 0x42535344 |
| #define DRF_ID_TSHV 0x54534856 |
| #define DRF_ID_AC3 0x41432d33 |
| #define DRF_ID_GA94 0x47413934 |
| #define DRF_ID_CUEI 0x43554549 |
| #define DRF_ID_ETV1 0x45545631 |
| #define DRF_ID_HEVC 0x48455643 |
| |
| #endif /* __GST_MPEG_DESC_H__ */ |
