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Diffstat (limited to 'src/skeleton.h')
| -rw-r--r-- | src/skeleton.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/skeleton.h b/src/skeleton.h new file mode 100644 index 0000000..d088e3e --- /dev/null +++ b/src/skeleton.h @@ -0,0 +1,78 @@ +/* + * skeleton.h + * author: Tahseen Mohammad + */ + +#ifndef _SKELETON_H +#define _SKELETON_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include <stdio.h> +#include <ogg/ogg.h> + +#define SKELETON_VERSION_MAJOR 3 +#define SKELETON_VERSION_MINOR 0 +#define FISHEAD_IDENTIFIER "fishead\0" +#define FISBONE_IDENTIFIER "fisbone\0" +#define FISHEAD_SIZE 64 +#define FISBONE_SIZE 52 +#define FISBONE_MESSAGE_HEADER_OFFSET 44 + +/* fishead_packet holds a fishead header packet. */ +typedef struct { + ogg_uint16_t version_major; /* skeleton version major */ + ogg_uint16_t version_minor; /* skeleton version minor */ + /* Start time of the presentation + * For a new stream presentationtime & basetime is same. */ + ogg_int64_t ptime_n; /* presentation time numerator */ + ogg_int64_t ptime_d; /* presentation time denominator */ + ogg_int64_t btime_n; /* basetime numerator */ + ogg_int64_t btime_d; /* basetime denominator */ + /* will holds the time of origin of the stream, a 20 bit field. */ + unsigned char UTC[20]; +} fishead_packet; + +/* fisbone_packet holds a fisbone header packet. */ +typedef struct { + ogg_uint32_t serial_no; /* serial no of the corresponding stream */ + ogg_uint32_t nr_header_packet; /* number of header packets */ + /* granule rate is the temporal resolution of the logical bitstream */ + ogg_int64_t granule_rate_n; /* granule rate numerator */ + ogg_int64_t granule_rate_d; /* granule rate denominator */ + ogg_int64_t start_granule; /* start granule value */ + ogg_uint32_t preroll; /* preroll */ + unsigned char granule_shift; /* 1 byte value holding the granule shift */ + char *message_header_fields; /* holds all the message header fields */ + /* current total size of the message header fields, for realloc purpose, initially zero */ + ogg_uint32_t current_header_size; +} fisbone_packet; + +extern int write_ogg_page_to_file(ogg_page *og, FILE *out); +extern int add_message_header_field(fisbone_packet *fp, char *header_key, char *header_value); +/* remember to deallocate the returned ogg_packet properly */ +extern int ogg_from_fishead(fishead_packet *fp,ogg_packet *op); +extern int ogg_from_fisbone(fisbone_packet *fp,ogg_packet *op); +extern int fisbone_clear(fisbone_packet *fp); +extern int fishead_from_ogg(ogg_packet *op,fishead_packet *fp); +extern int fisbone_from_ogg(ogg_packet *op,fisbone_packet *fp); +extern int fishead_from_ogg_page(const ogg_page *og,fishead_packet *fp); +extern int fisbone_from_ogg_page(const ogg_page *og,fisbone_packet *fp); +extern int add_fishead_to_stream(ogg_stream_state *os, fishead_packet *fp); +extern int add_fisbone_to_stream(ogg_stream_state *os, fisbone_packet *fp); +extern int add_eos_packet_to_stream(ogg_stream_state *os); +extern int flush_ogg_stream_to_file(ogg_stream_state *os, FILE *out); + +#ifdef __cplusplus +} +#endif + +#endif /* _SKELETON_H */ + + + + + + |