Blame tools/skeleton.h

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/*
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 * skeleton.h
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 * author: Tahseen Mohammad
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 */
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#ifndef _SKELETON_H
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#define _SKELETON_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef WIN32
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#define snprintf _snprintf
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#endif
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#include <ogg/ogg.h>
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#define SKELETON_VERSION_MAJOR 3
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#define SKELETON_VERSION_MINOR 0
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#define FISHEAD_IDENTIFIER "fishead\0"
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#define FISBONE_IDENTIFIER "fisbone\0"
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#define FISHEAD_SIZE 64
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#define FISBONE_SIZE 52
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#define FISBONE_MESSAGE_HEADER_OFFSET 44
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/* fishead_packet holds a fishead header packet. */
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typedef struct {
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    ogg_uint16_t version_major;				    /* skeleton version major */
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    ogg_uint16_t version_minor;				    /* skeleton version minor */
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    /* Start time of the presentation
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     * For a new stream presentationtime & basetime is same. */
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    ogg_int64_t ptime_n;                                    /* presentation time numerator */
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    ogg_int64_t ptime_d;                                    /* presentation time denominator */
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    ogg_int64_t btime_n;                                    /* basetime numerator */
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    ogg_int64_t btime_d;                                    /* basetime denominator */
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    /* will holds the time of origin of the stream, a 20 bit field. */
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    unsigned char UTC[20];
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} fishead_packet;
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/* fisbone_packet holds a fisbone header packet. */
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typedef struct {
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    ogg_uint32_t serial_no;                                 /* serial no of the corresponding stream */
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    ogg_uint32_t nr_header_packet;                      /* number of header packets */
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    /* granule rate is the temporal resolution of the logical bitstream */
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    ogg_int64_t granule_rate_n;                            /* granule rate numerator */
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    ogg_int64_t granule_rate_d;                            /* granule rate denominator */
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    ogg_int64_t start_granule;                             /* start granule value */
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    ogg_uint32_t preroll;                                   /* preroll */
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    unsigned char granule_shift;		            /* 1 byte value holding the granule shift */
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    char *message_header_fields;                            /* holds all the message header fields */
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    /* current total size of the message header fields, for realloc purpose, initially zero */
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    ogg_uint32_t current_header_size;
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} fisbone_packet;
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extern int write_ogg_page_to_file(ogg_page *og, FILE *out);
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extern int add_message_header_field(fisbone_packet *fp, char *header_key, char *header_value);
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/* remember to deallocate the returned ogg_packet properly */
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extern ogg_packet ogg_from_fishead(fishead_packet *fp);
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extern ogg_packet ogg_from_fisbone(fisbone_packet *fp);
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extern fishead_packet fishead_from_ogg(ogg_packet *op);
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extern fisbone_packet fisbone_from_ogg(ogg_packet *op);
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extern int add_fishead_to_stream(ogg_stream_state *os, fishead_packet *fp);
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extern int add_fisbone_to_stream(ogg_stream_state *os, fisbone_packet *fp);
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extern int add_eos_packet_to_stream(ogg_stream_state *os);
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extern int flush_ogg_stream_to_file(ogg_stream_state *os, FILE *out);
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#ifdef __cplusplus
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}
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#endif
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#endif  /* _SKELETON_H */
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