diff options
Diffstat (limited to 'libmpdemux/asf.h')
-rw-r--r-- | libmpdemux/asf.h | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/libmpdemux/asf.h b/libmpdemux/asf.h new file mode 100644 index 0000000000..8d35563cda --- /dev/null +++ b/libmpdemux/asf.h @@ -0,0 +1,200 @@ +#ifndef __ASF_H +#define __ASF_H + +#include "config.h" /* for WORDS_BIGENDIAN */ +#include <inttypes.h> +#include "bswap.h" +#ifdef STREAMING +#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 unk1; //Unknown, maybe reserved ( usually contains 0 ) 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_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)->unk1 = le2me_32((h)->unk1); \ + (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 + + +#ifdef STREAMING +int asf_http_streaming_type(char *content_type, char *features); +int asf_http_streaming_start( streaming_ctrl_t *streaming_ctrl ); +int asf_http_streaming_read( streaming_ctrl_t *streaming_ctrl ); + +int asf_streaming(char *data, int length, int *drop_packet ); +#endif + +#endif |