#ifndef __ASF_H #define __ASF_H //#include "config.h" /* for WORDS_BIGENDIAN */ #include <inttypes.h> #include "bswap.h" #ifdef STREAMING #include "stream.h" #include "network.h" #endif #ifndef MIN #define MIN(a,b) ((a<b)?a:b) #endif /////////////////////// // MS GUID definition /////////////////////// #ifndef GUID_DEFINED #define GUID_DEFINED // Size of GUID is 16 bytes! typedef struct __attribute__((packed)) { uint32_t Data1; // 4 bytes uint16_t Data2; // 2 bytes uint16_t Data3; // 2 bytes uint8_t Data4[8]; // 8 bytes } GUID_t; #endif /////////////////////// // ASF Object Header /////////////////////// typedef struct __attribute__((packed)) { uint8_t guid[16]; uint64_t size; } ASF_obj_header_t; //////////////// // ASF Header //////////////// typedef struct __attribute__((packed)) { ASF_obj_header_t objh; uint32_t cno; // number of subchunks uint8_t v1; // unknown (0x01) uint8_t v2; // unknown (0x02) } ASF_header_t; ///////////////////// // ASF File Header ///////////////////// typedef struct __attribute__((packed)) { uint8_t client[16]; // Client GUID uint64_t file_size; uint64_t creat_time; //File creation time FILETIME 8 uint64_t packets; //Number of packets UINT64 8 uint64_t end_timestamp; //Timestamp of the end position UINT64 8 uint64_t duration; //Duration of the playback UINT64 8 uint32_t start_timestamp; //Timestamp of the start position UINT32 4 uint32_t preroll; //Time to bufferize before playing UINT32 4 uint32_t flags; //Unknown, maybe flags ( usually contains 2 ) UINT32 4 uint32_t packetsize; //Size of packet, in bytes UINT32 4 uint32_t packetsize2; //Size of packet ( confirm ) UINT32 4 uint32_t frame_size; //Size of uncompressed video frame UINT32 4 } ASF_file_header_t; /////////////////////// // ASF Stream Header /////////////////////// typedef struct __attribute__((packed)) { uint8_t type[16]; // Stream type (audio/video) GUID 16 uint8_t concealment[16]; // Audio error concealment type GUID 16 uint64_t unk1; // Unknown, maybe reserved ( usually contains 0 ) UINT64 8 uint32_t type_size; //Total size of type-specific data UINT32 4 uint32_t stream_size; //Size of stream-specific data UINT32 4 uint16_t stream_no; //Stream number UINT16 2 uint32_t unk2; //Unknown UINT32 4 } ASF_stream_header_t; /////////////////////////// // ASF Content Description /////////////////////////// typedef struct __attribute__((packed)) { uint16_t title_size; uint16_t author_size; uint16_t copyright_size; uint16_t comment_size; uint16_t rating_size; } ASF_content_description_t; //////////////////////// // ASF Segment Header //////////////////////// typedef struct __attribute__((packed)) { uint8_t streamno; uint8_t seq; uint32_t x; uint8_t flag; } ASF_segmhdr_t; ////////////////////// // ASF Stream Chunck ////////////////////// typedef struct __attribute__((packed)) { uint16_t type; uint16_t size; uint32_t sequence_number; uint16_t unknown; uint16_t size_confirm; } ASF_stream_chunck_t; // Definition of the differents type of ASF streaming typedef enum { ASF_Unknown_e, ASF_Live_e, ASF_Prerecorded_e, ASF_Redirector_e, ASF_PlainText_e } ASF_StreamType_e; /* * Some macros to swap little endian structures read from an ASF file * into machine endian format */ #ifdef WORDS_BIGENDIAN #define le2me_ASF_obj_header_t(h) { \ (h)->size = le2me_64((h)->size); \ } #define le2me_ASF_header_t(h) { \ le2me_ASF_obj_header_t(&(h)->objh); \ (h)->cno = le2me_32((h)->cno); \ } #define le2me_ASF_stream_header_t(h) { \ (h)->unk1 = le2me_64((h)->unk1); \ (h)->type_size = le2me_32((h)->type_size); \ (h)->stream_size = le2me_32((h)->stream_size); \ (h)->stream_no = le2me_16((h)->stream_no); \ (h)->unk2 = le2me_32((h)->unk2); \ } #define le2me_ASF_file_header_t(h) { \ (h)->file_size = le2me_64((h)->file_size); \ (h)->creat_time = le2me_64((h)->creat_time); \ (h)->packets = le2me_64((h)->packets); \ (h)->end_timestamp = le2me_64((h)->end_timestamp); \ (h)->duration = le2me_64((h)->duration); \ (h)->start_timestamp = le2me_32((h)->start_timestamp); \ (h)->preroll = le2me_32((h)->preroll); \ (h)->flags = le2me_32((h)->flags); \ (h)->packetsize = le2me_32((h)->packetsize); \ (h)->packetsize2 = le2me_32((h)->packetsize2); \ (h)->frame_size = le2me_32((h)->frame_size); \ } #define le2me_ASF_content_description_t(h) { \ (h)->title_size = le2me_16((h)->title_size); \ (h)->author_size = le2me_16((h)->author_size); \ (h)->copyright_size = le2me_16((h)->copyright_size); \ (h)->comment_size = le2me_16((h)->comment_size); \ (h)->rating_size = le2me_16((h)->rating_size); \ } #define le2me_BITMAPINFOHEADER(h) { \ (h)->biSize = le2me_32((h)->biSize); \ (h)->biWidth = le2me_32((h)->biWidth); \ (h)->biHeight = le2me_32((h)->biHeight); \ (h)->biPlanes = le2me_16((h)->biPlanes); \ (h)->biBitCount = le2me_16((h)->biBitCount); \ (h)->biCompression = le2me_32((h)->biCompression); \ (h)->biSizeImage = le2me_32((h)->biSizeImage); \ (h)->biXPelsPerMeter = le2me_32((h)->biXPelsPerMeter); \ (h)->biYPelsPerMeter = le2me_32((h)->biYPelsPerMeter); \ (h)->biClrUsed = le2me_32((h)->biClrUsed); \ (h)->biClrImportant = le2me_32((h)->biClrImportant); \ } #define le2me_WAVEFORMATEX(h) { \ (h)->wFormatTag = le2me_16((h)->wFormatTag); \ (h)->nChannels = le2me_16((h)->nChannels); \ (h)->nSamplesPerSec = le2me_32((h)->nSamplesPerSec); \ (h)->nAvgBytesPerSec = le2me_32((h)->nAvgBytesPerSec); \ (h)->nBlockAlign = le2me_16((h)->nBlockAlign); \ (h)->wBitsPerSample = le2me_16((h)->wBitsPerSample); \ (h)->cbSize = le2me_16((h)->cbSize); \ } #else #define le2me_ASF_obj_header_t(h) /**/ #define le2me_ASF_header_t(h) /**/ #define le2me_ASF_stream_header_t(h) /**/ #define le2me_ASF_file_header_t(h) /**/ #define le2me_ASF_content_description_t(h) /**/ #define le2me_BITMAPINFOHEADER(h) /**/ #define le2me_WAVEFORMATEX(h) /**/ #endif #endif