diff options
Diffstat (limited to 'libavformat/avio.h')
| -rw-r--r-- | libavformat/avio.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/libavformat/avio.h b/libavformat/avio.h index 8cbd7aafec..710246854b 100644 --- a/libavformat/avio.h +++ b/libavformat/avio.h @@ -454,6 +454,22 @@ attribute_deprecated void init_checksum(AVIOContext *s, attribute_deprecated unsigned long get_checksum(AVIOContext *s); #endif +/** + * Allocate and initialize an AVIOContext for buffered I/O. It must be later + * freed with av_free(). + * + * @param buffer Memory block for input/output operations via AVIOContext. + * @param buffer_size The buffer size is very important for performance. + * For protocols with fixed blocksize it should be set to this blocksize. + * For others a typical size is a cache page, e.g. 4kb. + * @param write_flag Set to 1 if the buffer should be writable, 0 otherwise. + * @param opaque An opaque pointer to user-specific data. + * @param read_packet A function for refilling the buffer, may be NULL. + * @param write_packet A function for writing the buffer contents, may be NULL. + * @param seek A function for seeking to specified byte position, may be NULL. + * + * @return Allocated AVIOContext or NULL on failure. + */ AVIOContext *avio_alloc_context( unsigned char *buffer, int buffer_size, |