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#ifndef _ASF_H
#define _ASF_H
#include <inttypes.h>
/* ASF codec IDs */
#define ASF_CODEC_ID_WMAV1 0x160
#define ASF_CODEC_ID_WMAV2 0x161
#define ASF_CODEC_ID_WMAPRO 0x162
#define ASF_CODEC_ID_WMAVOICE 0x00A
enum asf_error_e {
ASF_ERROR_INTERNAL = -1, /* incorrect input to API calls */
ASF_ERROR_OUTOFMEM = -2, /* some malloc inside program failed */
ASF_ERROR_EOF = -3, /* unexpected end of file */
ASF_ERROR_IO = -4, /* error reading or writing to file */
ASF_ERROR_INVALID_LENGTH = -5, /* length value conflict in input data */
ASF_ERROR_INVALID_VALUE = -6, /* other value conflict in input data */
ASF_ERROR_INVALID_OBJECT = -7, /* ASF object missing or in wrong place */
ASF_ERROR_OBJECT_SIZE = -8, /* invalid ASF object size (too small) */
ASF_ERROR_SEEKABLE = -9, /* file not seekable */
ASF_ERROR_SEEK = -10, /* file is seekable but seeking failed */
ASF_ERROR_ENCRYPTED = -11 /* file is encrypted */
};
struct asf_waveformatex_s {
uint32_t packet_size;
int audiostream;
uint16_t codec_id;
uint16_t channels;
uint32_t rate;
uint32_t bitrate;
uint16_t blockalign;
uint16_t bitspersample;
uint16_t datalen;
uint16_t numpackets;
uint8_t data[46];
};
typedef struct asf_waveformatex_s asf_waveformatex_t;
int asf_read_packet(uint8_t** audiobuf, int* audiobufsize, int* packetlength,
asf_waveformatex_t* wfx);
int asf_get_timestamp(int *duration);
int asf_seek(int ms, asf_waveformatex_t* wfx);
#endif /* _ASF_H */
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