diff options
Diffstat (limited to 'libavcodec/libxvidff.c')
| -rw-r--r-- | libavcodec/libxvidff.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/libavcodec/libxvidff.c b/libavcodec/libxvidff.c index 2c58e59..1314538 100644 --- a/libavcodec/libxvidff.c +++ b/libavcodec/libxvidff.c @@ -25,11 +25,17 @@ * @author Adam Thayer (krevnik@comcast.net) */ +/* needed for mkstemp() */ +#define _XOPEN_SOURCE 600 + #include <xvid.h> #include <unistd.h> #include "avcodec.h" #include "libavutil/intreadwrite.h" #include "libxvid_internal.h" +#if !HAVE_MKSTEMP +#include <fcntl.h> +#endif /** * Buffer management macros. @@ -764,6 +770,42 @@ int xvid_ff_2pass(void *ref, int cmd, void *p1, void *p2) { } } +/* Wrapper to work around the lack of mkstemp() on mingw/cygin. + * Also, tries to create file in /tmp first, if possible. + * *prefix can be a character constant; *filename will be allocated internally. + * @return file descriptor of opened file (or -1 on error) + * and opened file name in **filename. */ +int av_tempfile(char *prefix, char **filename) { + int fd=-1; +#if !HAVE_MKSTEMP + *filename = tempnam(".", prefix); +#else + size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */ + *filename = av_malloc(len); +#endif + /* -----common section-----*/ + if (*filename == NULL) { + av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n"); + return -1; + } +#if !HAVE_MKSTEMP + fd = open(*filename, O_RDWR | O_BINARY | O_CREAT, 0444); +#else + snprintf(*filename, len, "/tmp/%sXXXXXX", prefix); + fd = mkstemp(*filename); + if (fd < 0) { + snprintf(*filename, len, "./%sXXXXXX", prefix); + fd = mkstemp(*filename); + } +#endif + /* -----common section-----*/ + if (fd < 0) { + av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename); + return -1; + } + return fd; /* success */ +} + /** * Xvid codec definition for libavcodec. */ |
