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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ogg/ogg.h>
#ifdef NEED_FSEEKO
#include <sys/stat.h>
#include <errno.h>
#endif
#include "common.h"
void _die(const char *s, const char *file, int line) {
fprintf(stderr, "die @ %s/%d : %s\n", file, line, s);
exit(1);
}
ogg_packet *duplicate_ogg_packet(ogg_packet *src) {
ogg_packet *dst;
dst = (ogg_packet *)malloc(sizeof(ogg_packet));
if (dst == NULL)
die("malloc");
memcpy(dst, src, sizeof(ogg_packet));
dst->packet = (unsigned char *)malloc(src->bytes);
if (dst->packet == NULL)
die("malloc");
memcpy(dst->packet, src->packet, src->bytes);
return dst;
}
char **dup_comments(char **comments) {
char **new_comments;
int nc;
if (comments == NULL)
return NULL;
for (nc = 0; comments[nc] != NULL; nc++)
;
new_comments = (char **)malloc(sizeof(char *) * nc + 1);
if (new_comments == NULL)
die("malloc");
for (nc = 0; comments[nc] != NULL; nc++) {
new_comments[nc] = strdup(comments[nc]);
if (new_comments[nc] == NULL)
die("strdup");
}
new_comments[nc] = NULL;
return new_comments;
}
void free_comments(char **comments) {
int i;
if (comments != NULL) {
for (i = 0; comments[i] != NULL; i++)
free(comments[i]);
free(comments);
}
}
u_int16_t get_uint16(const void *buf) {
u_int16_t ret;
unsigned char *tmp;
tmp = (unsigned char *)buf;
ret = tmp[1] & 0xff;
ret = (ret << 8) + (tmp[0] & 0xff);
return ret;
}
u_int32_t get_uint32(const void *buf) {
u_int32_t ret;
unsigned char *tmp;
tmp = (unsigned char *)buf;
ret = tmp[3] & 0xff;
ret = (ret << 8) + (tmp[2] & 0xff);
ret = (ret << 8) + (tmp[1] & 0xff);
ret = (ret << 8) + (tmp[0] & 0xff);
return ret;
}
u_int64_t get_uint64(const void *buf) {
u_int64_t ret;
unsigned char *tmp;
tmp = (unsigned char *) buf;
ret = tmp[7] & 0xff;
ret = (ret << 8) + (tmp[6] & 0xff);
ret = (ret << 8) + (tmp[5] & 0xff);
ret = (ret << 8) + (tmp[4] & 0xff);
ret = (ret << 8) + (tmp[3] & 0xff);
ret = (ret << 8) + (tmp[2] & 0xff);
ret = (ret << 8) + (tmp[1] & 0xff);
ret = (ret << 8) + (tmp[0] & 0xff);
return ret;
}
void put_uint16(void *buf, u_int16_t val) {
unsigned char *tmp;
tmp = (unsigned char *) buf;
tmp[0] = val & 0xff;
tmp[1] = (val >>= 8) & 0xff;
}
void put_uint32(void *buf, u_int32_t val) {
unsigned char *tmp;
tmp = (unsigned char *) buf;
tmp[0] = val & 0xff;
tmp[1] = (val >>= 8) & 0xff;
tmp[2] = (val >>= 8) & 0xff;
tmp[3] = (val >>= 8) & 0xff;
}
void put_uint64(void *buf, u_int64_t val) {
unsigned char *tmp;
tmp = (unsigned char *) buf;
tmp[0] = val & 0xff;
tmp[1] = (val >>= 8) & 0xff;
tmp[2] = (val >>= 8) & 0xff;
tmp[3] = (val >>= 8) & 0xff;
tmp[4] = (val >>= 8) & 0xff;
tmp[5] = (val >>= 8) & 0xff;
tmp[6] = (val >>= 8) & 0xff;
tmp[7] = (val >>= 8) & 0xff;
}
#ifdef NEED_FSEEKO
/*
* On BSD/OS and NetBSD, off_t and fpos_t are the same. Standards
* say off_t is an arithmetic type, but not necessarily integral,
* while fpos_t might be neither.
*/
int fseeko(FILE *stream, off_t offset, int whence) {
off_t floc;
struct stat filestat;
switch (whence) {
case SEEK_CUR:
flockfile(stream);
if (fgetpos(stream, &floc) != 0)
goto failure;
floc += offset;
if (fsetpos(stream, &floc) != 0)
goto failure;
funlockfile(stream);
return 0;
break;
case SEEK_SET:
if (fsetpos(stream, &offset) != 0)
return -1;
return 0;
break;
case SEEK_END:
flockfile(stream);
if (fstat(fileno(stream), &filestat) != 0)
goto failure;
floc = filestat.st_size;
if (fsetpos(stream, &floc) != 0)
goto failure;
funlockfile(stream);
return 0;
break;
default:
errno = EINVAL;
return -1;
}
failure:
funlockfile(stream);
return -1;
}
off_t ftello(FILE *stream) {
off_t floc;
if (fgetpos(stream, &floc) != 0)
return -1;
return floc;
}
#endif /* NEED_FSEEKO */
#define COPY(m, s) memcpy(&dst->m, &src->m, s)
void copy_headers(stream_header *dst, old_stream_header *src, int size) {
if (size == sizeof(old_stream_header)) {
COPY(streamtype[0], 8);
COPY(subtype[0], 4);
COPY(size, 4);
COPY(time_unit, 8);
COPY(samples_per_unit, 8);
COPY(default_len, 4);
COPY(buffersize, 4);
COPY(bits_per_sample, 2);
COPY(sh, sizeof(stream_header_video));
} else
memcpy(dst, src, size);
}
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