struct URLContext {
struct URLProtocol *prot;
- int flags;
+ int flags;
int is_streamed; /* true if streamed (no seek possible), default = false */
int max_packet_size; /* if non zero, the stream is packetized with this max packet size */
void *priv_data;
unsigned char *buf_ptr, *buf_end;
void *opaque;
int (*read_packet)(void *opaque, uint8_t *buf, int buf_size);
- void (*write_packet)(void *opaque, uint8_t *buf, int buf_size);
- int (*seek)(void *opaque, offset_t offset, int whence);
+ int (*write_packet)(void *opaque, uint8_t *buf, int buf_size);
+ offset_t (*seek)(void *opaque, offset_t offset, int whence);
offset_t pos; /* position in the file of the current buffer */
int must_flush; /* true if the next seek should flush */
int eof_reached; /* true if eof reached */
int write_flag; /* true if open for writing */
int is_streamed;
int max_packet_size;
+ unsigned long checksum;
+ unsigned char *checksum_ptr;
+ unsigned long (*update_checksum)(unsigned long checksum, const uint8_t *buf, unsigned int size);
+ int error; ///< contains the error code or 0 if no error happened
} ByteIOContext;
int init_put_byte(ByteIOContext *s,
int write_flag,
void *opaque,
int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
- void (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
- int (*seek)(void *opaque, offset_t offset, int whence));
+ int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
+ offset_t (*seek)(void *opaque, offset_t offset, int whence));
void put_byte(ByteIOContext *s, int b);
void put_buffer(ByteIOContext *s, const unsigned char *buf, int size);
void put_be64(ByteIOContext *s, uint64_t val);
void put_le32(ByteIOContext *s, unsigned int val);
void put_be32(ByteIOContext *s, unsigned int val);
+void put_le24(ByteIOContext *s, unsigned int val);
+void put_be24(ByteIOContext *s, unsigned int val);
void put_le16(ByteIOContext *s, unsigned int val);
void put_be16(ByteIOContext *s, unsigned int val);
void put_tag(ByteIOContext *s, const char *tag);
-void put_be64_double(ByteIOContext *s, double val);
void put_strz(ByteIOContext *s, const char *buf);
offset_t url_fseek(ByteIOContext *s, offset_t offset, int whence);
void url_fskip(ByteIOContext *s, offset_t offset);
offset_t url_ftell(ByteIOContext *s);
+offset_t url_fsize(ByteIOContext *s);
int url_feof(ByteIOContext *s);
+int url_ferror(ByteIOContext *s);
#define URL_EOF (-1)
int url_fgetc(ByteIOContext *s);
int get_buffer(ByteIOContext *s, unsigned char *buf, int size);
int get_partial_buffer(ByteIOContext *s, unsigned char *buf, int size);
int get_byte(ByteIOContext *s);
+unsigned int get_le24(ByteIOContext *s);
unsigned int get_le32(ByteIOContext *s);
uint64_t get_le64(ByteIOContext *s);
unsigned int get_le16(ByteIOContext *s);
-double get_be64_double(ByteIOContext *s);
char *get_strz(ByteIOContext *s, char *buf, int maxlen);
unsigned int get_be16(ByteIOContext *s);
+unsigned int get_be24(ByteIOContext *s);
unsigned int get_be32(ByteIOContext *s);
uint64_t get_be64(ByteIOContext *s);
int url_open_dyn_packet_buf(ByteIOContext *s, int max_packet_size);
int url_close_dyn_buf(ByteIOContext *s, uint8_t **pbuffer);
+unsigned long get_checksum(ByteIOContext *s);
+void init_checksum(ByteIOContext *s, unsigned long (*update_checksum)(unsigned long c, const uint8_t *p, unsigned int len), unsigned long checksum);
+
/* file.c */
extern URLProtocol file_protocol;
extern URLProtocol pipe_protocol;