FFmpeg
2.4.3
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Go to the source code of this file.
Data Structures | |
struct | AVBPrint |
Buffer to print data progressively. More... | |
Macros | |
#define | FF_PAD_STRUCTURE(size,...) |
Define a structure with extra padding to a fixed size This helps ensuring binary compatibility with future versions. More... | |
#define | AV_BPRINT_SIZE_UNLIMITED ((unsigned)-1) |
Convenience macros for special values for av_bprint_init() size_max parameter. More... | |
#define | AV_BPRINT_SIZE_AUTOMATIC 1 |
#define | AV_BPRINT_SIZE_COUNT_ONLY 0 |
Functions | |
void | av_bprint_init (AVBPrint *buf, unsigned size_init, unsigned size_max) |
Init a print buffer. More... | |
void | av_bprint_init_for_buffer (AVBPrint *buf, char *buffer, unsigned size) |
Init a print buffer using a pre-existing buffer. More... | |
void | av_bprintf (AVBPrint *buf, const char *fmt,...) av_printf_format(2 |
Append a formatted string to a print buffer. More... | |
void void | av_vbprintf (AVBPrint *buf, const char *fmt, va_list vl_arg) |
Append a formatted string to a print buffer. More... | |
void | av_bprint_chars (AVBPrint *buf, char c, unsigned n) |
Append char c n times to a print buffer. More... | |
void | av_bprint_append_data (AVBPrint *buf, const char *data, unsigned size) |
Append data to a print buffer. More... | |
void | av_bprint_strftime (AVBPrint *buf, const char *fmt, const struct tm *tm) |
Append a formatted date and time to a print buffer. More... | |
void | av_bprint_get_buffer (AVBPrint *buf, unsigned size, unsigned char **mem, unsigned *actual_size) |
Allocate bytes in the buffer for external use. More... | |
void | av_bprint_clear (AVBPrint *buf) |
Reset the string to "" but keep internal allocated data. More... | |
static int | av_bprint_is_complete (AVBPrint *buf) |
Test if the print buffer is complete (not truncated). More... | |
int | av_bprint_finalize (AVBPrint *buf, char **ret_str) |
Finalize a print buffer. More... | |
void | av_bprint_escape (AVBPrint *dstbuf, const char *src, const char *special_chars, enum AVEscapeMode mode, int flags) |
Escape the content in src and append it to dstbuf. More... | |
#define FF_PAD_STRUCTURE | ( | size, | |
... | |||
) |
#define AV_BPRINT_SIZE_UNLIMITED ((unsigned)-1) |
Convenience macros for special values for av_bprint_init() size_max parameter.
void av_bprint_init | ( | AVBPrint * | buf, |
unsigned | size_init, | ||
unsigned | size_max | ||
) |
Init a print buffer.
buf | buffer to init |
size_init | initial size (including the final 0) |
size_max | maximum size; 0 means do not write anything, just count the length; 1 is replaced by the maximum value for automatic storage; any large value means that the internal buffer will be reallocated as needed up to that limit; -1 is converted to UINT_MAX, the largest limit possible. Check also AV_BPRINT_SIZE_* macros. |
void av_bprint_init_for_buffer | ( | AVBPrint * | buf, |
char * | buffer, | ||
unsigned | size | ||
) |
Init a print buffer using a pre-existing buffer.
The buffer will not be reallocated.
buf | buffer structure to init |
buffer | byte buffer to use for the string data |
size | size of buffer |
void av_bprintf | ( | AVBPrint * | buf, |
const char * | fmt, | ||
... | |||
) |
Append a formatted string to a print buffer.
void void av_vbprintf | ( | AVBPrint * | buf, |
const char * | fmt, | ||
va_list | vl_arg | ||
) |
Append a formatted string to a print buffer.
void av_bprint_chars | ( | AVBPrint * | buf, |
char | c, | ||
unsigned | n | ||
) |
Append char c n times to a print buffer.
void av_bprint_append_data | ( | AVBPrint * | buf, |
const char * | data, | ||
unsigned | size | ||
) |
Append data to a print buffer.
param buf bprint buffer to use param data pointer to data param size size of data
void av_bprint_strftime | ( | AVBPrint * | buf, |
const char * | fmt, | ||
const struct tm * | tm | ||
) |
Append a formatted date and time to a print buffer.
param buf bprint buffer to use param fmt date and time format string, see strftime() param tm broken-down time structure to translate
void av_bprint_get_buffer | ( | AVBPrint * | buf, |
unsigned | size, | ||
unsigned char ** | mem, | ||
unsigned * | actual_size | ||
) |
Allocate bytes in the buffer for external use.
[in] | buf | buffer structure |
[in] | size | required size |
[out] | mem | pointer to the memory area |
[out] | actual_size | size of the memory area after allocation; can be larger or smaller than size |
void av_bprint_clear | ( | AVBPrint * | buf | ) |
Reset the string to "" but keep internal allocated data.
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inlinestatic |
int av_bprint_finalize | ( | AVBPrint * | buf, |
char ** | ret_str | ||
) |
Finalize a print buffer.
The print buffer can no longer be used afterwards, but the len and size fields are still valid.
void av_bprint_escape | ( | AVBPrint * | dstbuf, |
const char * | src, | ||
const char * | special_chars, | ||
enum AVEscapeMode | mode, | ||
int | flags | ||
) |
Escape the content in src and append it to dstbuf.
dstbuf | already inited destination bprint buffer |
src | string containing the text to escape |
special_chars | string containing the special characters which need to be escaped, can be NULL |
mode | escape mode to employ, see AV_ESCAPE_MODE_* macros. Any unknown value for mode will be considered equivalent to AV_ESCAPE_MODE_BACKSLASH, but this behaviour can change without notice. |
flags | flags which control how to escape, see AV_ESCAPE_FLAG_* macros |