yading@11: /* yading@11: * Copyright (c) 2000, 2001 Fabrice Bellard yading@11: * yading@11: * This file is part of FFmpeg. yading@11: * yading@11: * FFmpeg is free software; you can redistribute it and/or yading@11: * modify it under the terms of the GNU Lesser General Public yading@11: * License as published by the Free Software Foundation; either yading@11: * version 2.1 of the License, or (at your option) any later version. yading@11: * yading@11: * FFmpeg is distributed in the hope that it will be useful, yading@11: * but WITHOUT ANY WARRANTY; without even the implied warranty of yading@11: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU yading@11: * Lesser General Public License for more details. yading@11: * yading@11: * You should have received a copy of the GNU Lesser General Public yading@11: * License along with FFmpeg; if not, write to the Free Software yading@11: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA yading@11: */ yading@11: yading@11: #ifndef AVFORMAT_ASF_H yading@11: #define AVFORMAT_ASF_H yading@11: yading@11: #include yading@11: #include "avformat.h" yading@11: #include "metadata.h" yading@11: #include "riff.h" yading@11: yading@11: #define PACKET_SIZE 3200 yading@11: yading@11: typedef struct ASFPayload { yading@11: uint8_t type; yading@11: uint16_t size; yading@11: } ASFPayload; yading@11: yading@11: typedef struct ASFStream { yading@11: int num; yading@11: unsigned char seq; yading@11: /* use for reading */ yading@11: AVPacket pkt; yading@11: int frag_offset; yading@11: int timestamp; yading@11: int64_t duration; yading@11: yading@11: int ds_span; /* descrambling */ yading@11: int ds_packet_size; yading@11: int ds_chunk_size; yading@11: yading@11: int64_t packet_pos; yading@11: yading@11: uint16_t stream_language_index; yading@11: yading@11: int palette_changed; yading@11: uint32_t palette[256]; yading@11: yading@11: int payload_ext_ct; yading@11: ASFPayload payload[8]; yading@11: } ASFStream; yading@11: yading@11: typedef struct ASFMainHeader { yading@11: ff_asf_guid guid; ///< generated by client computer yading@11: uint64_t file_size; /**< in bytes yading@11: * invalid if broadcasting */ yading@11: uint64_t create_time; /**< time of creation, in 100-nanosecond units since 1.1.1601 yading@11: * invalid if broadcasting */ yading@11: uint64_t play_time; /**< play time, in 100-nanosecond units yading@11: * invalid if broadcasting */ yading@11: uint64_t send_time; /**< time to send file, in 100-nanosecond units yading@11: * invalid if broadcasting (could be ignored) */ yading@11: uint32_t preroll; /**< timestamp of the first packet, in milliseconds yading@11: * if nonzero - subtract from time */ yading@11: uint32_t ignore; ///< preroll is 64bit - but let's just ignore it yading@11: uint32_t flags; /**< 0x01 - broadcast yading@11: * 0x02 - seekable yading@11: * rest is reserved should be 0 */ yading@11: uint32_t min_pktsize; /**< size of a data packet yading@11: * invalid if broadcasting */ yading@11: uint32_t max_pktsize; /**< shall be the same as for min_pktsize yading@11: * invalid if broadcasting */ yading@11: uint32_t max_bitrate; /**< bandwidth of stream in bps yading@11: * should be the sum of bitrates of the yading@11: * individual media streams */ yading@11: } ASFMainHeader; yading@11: yading@11: yading@11: typedef struct ASFIndex { yading@11: uint32_t packet_number; yading@11: uint16_t packet_count; yading@11: } ASFIndex; yading@11: yading@11: extern const ff_asf_guid ff_asf_header; yading@11: extern const ff_asf_guid ff_asf_file_header; yading@11: extern const ff_asf_guid ff_asf_stream_header; yading@11: extern const ff_asf_guid ff_asf_ext_stream_header; yading@11: extern const ff_asf_guid ff_asf_audio_stream; yading@11: extern const ff_asf_guid ff_asf_audio_conceal_none; yading@11: extern const ff_asf_guid ff_asf_audio_conceal_spread; yading@11: extern const ff_asf_guid ff_asf_video_stream; yading@11: extern const ff_asf_guid ff_asf_jfif_media; yading@11: extern const ff_asf_guid ff_asf_video_conceal_none; yading@11: extern const ff_asf_guid ff_asf_command_stream; yading@11: extern const ff_asf_guid ff_asf_comment_header; yading@11: extern const ff_asf_guid ff_asf_codec_comment_header; yading@11: extern const ff_asf_guid ff_asf_codec_comment1_header; yading@11: extern const ff_asf_guid ff_asf_data_header; yading@11: extern const ff_asf_guid ff_asf_head1_guid; yading@11: extern const ff_asf_guid ff_asf_head2_guid; yading@11: extern const ff_asf_guid ff_asf_extended_content_header; yading@11: extern const ff_asf_guid ff_asf_simple_index_header; yading@11: extern const ff_asf_guid ff_asf_ext_stream_embed_stream_header; yading@11: extern const ff_asf_guid ff_asf_ext_stream_audio_stream; yading@11: extern const ff_asf_guid ff_asf_metadata_header; yading@11: extern const ff_asf_guid ff_asf_metadata_library_header; yading@11: extern const ff_asf_guid ff_asf_marker_header; yading@11: extern const ff_asf_guid ff_asf_my_guid; yading@11: extern const ff_asf_guid ff_asf_language_guid; yading@11: extern const ff_asf_guid ff_asf_content_encryption; yading@11: extern const ff_asf_guid ff_asf_ext_content_encryption; yading@11: extern const ff_asf_guid ff_asf_digital_signature; yading@11: yading@11: extern const AVMetadataConv ff_asf_metadata_conv[]; yading@11: yading@11: #define ASF_PACKET_FLAG_ERROR_CORRECTION_PRESENT 0x80 //1000 0000 yading@11: yading@11: yading@11: // ASF data packet structure yading@11: // ========================= yading@11: // yading@11: // yading@11: // ----------------------------------- yading@11: // | Error Correction Data | Optional yading@11: // ----------------------------------- yading@11: // | Payload Parsing Information (PPI) | yading@11: // ----------------------------------- yading@11: // | Payload Data | yading@11: // ----------------------------------- yading@11: // | Padding Data | yading@11: // ----------------------------------- yading@11: yading@11: yading@11: // PPI_FLAG - Payload parsing information flags yading@11: #define ASF_PPI_FLAG_MULTIPLE_PAYLOADS_PRESENT 1 yading@11: yading@11: #define ASF_PPI_FLAG_SEQUENCE_FIELD_IS_BYTE 0x02 //0000 0010 yading@11: #define ASF_PPI_FLAG_SEQUENCE_FIELD_IS_WORD 0x04 //0000 0100 yading@11: #define ASF_PPI_FLAG_SEQUENCE_FIELD_IS_DWORD 0x06 //0000 0110 yading@11: #define ASF_PPI_MASK_SEQUENCE_FIELD_SIZE 0x06 //0000 0110 yading@11: yading@11: #define ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE 0x08 //0000 1000 yading@11: #define ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD 0x10 //0001 0000 yading@11: #define ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_DWORD 0x18 //0001 1000 yading@11: #define ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE 0x18 //0001 1000 yading@11: yading@11: #define ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_BYTE 0x20 //0010 0000 yading@11: #define ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_WORD 0x40 //0100 0000 yading@11: #define ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_DWORD 0x60 //0110 0000 yading@11: #define ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE 0x60 //0110 0000 yading@11: yading@11: // PL_FLAG - Payload flags yading@11: #define ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE 0x01 //0000 0001 yading@11: #define ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_WORD 0x02 //0000 0010 yading@11: #define ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_DWORD 0x03 //0000 0011 yading@11: #define ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE 0x03 //0000 0011 yading@11: yading@11: #define ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_BYTE 0x04 //0000 0100 yading@11: #define ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_WORD 0x08 //0000 1000 yading@11: #define ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD 0x0c //0000 1100 yading@11: #define ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE 0x0c //0000 1100 yading@11: yading@11: #define ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE 0x10 //0001 0000 yading@11: #define ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_WORD 0x20 //0010 0000 yading@11: #define ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_DWORD 0x30 //0011 0000 yading@11: #define ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE 0x30 //0011 0000 yading@11: yading@11: #define ASF_PL_FLAG_STREAM_NUMBER_LENGTH_FIELD_IS_BYTE 0x40 //0100 0000 yading@11: #define ASF_PL_MASK_STREAM_NUMBER_LENGTH_FIELD_SIZE 0xc0 //1100 0000 yading@11: yading@11: #define ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_BYTE 0x40 //0100 0000 yading@11: #define ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD 0x80 //1000 0000 yading@11: #define ASF_PL_MASK_PAYLOAD_LENGTH_FIELD_SIZE 0xc0 //1100 0000 yading@11: yading@11: #define ASF_PL_FLAG_KEY_FRAME 0x80 //1000 0000 yading@11: yading@11: extern AVInputFormat ff_asf_demuxer; yading@11: yading@11: void ff_put_guid(AVIOContext *s, const ff_asf_guid *g); yading@11: yading@11: #endif /* AVFORMAT_ASF_H */