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api change for packet based protocols (such as UDP and RTP)

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Originally committed as revision 794 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Fabrice Bellard 2002-07-24 17:49:11 +00:00
parent 2d225591e9
commit f031df23fe
1 changed files with 27 additions and 8 deletions
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35
libav/avio.h
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@ -1,3 +1,6 @@
#ifndef AVIO_H
#define AVIO_H
/* output byte stream handling */
typedef INT64 offset_t;
@ -8,7 +11,7 @@ struct URLContext {
struct URLProtocol *prot;
int flags;
int is_streamed; /* true if streamed (no seek possible), default = false */
int packet_size;
int max_packet_size; /* if non zero, the stream is packetized with this max packet size */
void *priv_data;
};
@ -22,6 +25,8 @@ typedef struct URLPollEntry {
#define URL_RDONLY 0
#define URL_WRONLY 1
#define URL_RDWR 2
int url_open(URLContext **h, const char *filename, int flags);
int url_read(URLContext *h, unsigned char *buf, int size);
int url_write(URLContext *h, unsigned char *buf, int size);
@ -29,6 +34,7 @@ offset_t url_seek(URLContext *h, offset_t pos, int whence);
int url_close(URLContext *h);
int url_exist(const char *filename);
offset_t url_filesize(URLContext *h);
int url_get_max_packet_size(URLContext *h);
/* not implemented */
int url_poll(URLPollEntry *poll_table, int n, int timeout);
@ -59,7 +65,7 @@ typedef struct {
int eof_reached; /* true if eof reached */
int write_flag; /* true if open for writing */
int is_streamed;
int packet_size;
int max_packet_size;
} ByteIOContext;
int init_put_byte(ByteIOContext *s,
@ -86,6 +92,11 @@ void url_fskip(ByteIOContext *s, offset_t offset);
offset_t url_ftell(ByteIOContext *s);
int url_feof(ByteIOContext *s);
#define URL_EOF (-1)
int url_fgetc(ByteIOContext *s);
int url_fprintf(ByteIOContext *s, const char *fmt, ...);
char *url_fgets(ByteIOContext *s, char *buf, int buf_size);
void put_flush_packet(ByteIOContext *s);
int get_buffer(ByteIOContext *s, unsigned char *buf, int size);
@ -102,28 +113,36 @@ static inline int url_is_streamed(ByteIOContext *s)
{
return s->is_streamed;
}
/* get the prefered packet size of the device. All I/Os should be done
by multiple of this size */
static inline int url_get_packet_size(ByteIOContext *s)
{
return s->packet_size;
}
int url_fdopen(ByteIOContext *s, URLContext *h);
int url_setbufsize(ByteIOContext *s, int buf_size);
int url_fopen(ByteIOContext *s, const char *filename, int flags);
int url_fclose(ByteIOContext *s);
URLContext *url_fileno(ByteIOContext *s);
int url_fget_max_packet_size(ByteIOContext *s);
int url_open_buf(ByteIOContext *s, UINT8 *buf, int buf_size, int flags);
int url_close_buf(ByteIOContext *s);
int url_open_dyn_buf(ByteIOContext *s);
int url_open_dyn_packet_buf(ByteIOContext *s, int max_packet_size);
int url_close_dyn_buf(ByteIOContext *s, UINT8 **pbuffer);
/* file.c */
extern URLProtocol file_protocol;
extern URLProtocol pipe_protocol;
/* udp.c */
extern URLProtocol udp_protocol;
int udp_set_remote_url(URLContext *h, const char *uri);
int udp_get_local_port(URLContext *h);
int udp_get_file_handle(URLContext *h);
/* tcp.c */
extern URLProtocol tcp_protocol;
/* http.c */
extern URLProtocol http_protocol;
#endif