diff options
author | Michael Niedermayer <michaelni@gmx.at> | 2011-04-02 03:51:44 +0400 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2011-04-02 03:54:27 +0400 |
commit | 4defa68fe25eae4d7c27341e3b35811c047dcd3f (patch) | |
tree | 9d4d37343ec4c99801c1b76b813b0a5b2b04576b /libavformat/avio.h | |
parent | a2f5e14a867768019b49b830e29801f1bfb2abb7 (diff) | |
parent | aa05f2126e18d23432bde77e6f44e41691472fef (diff) |
Merge remote branch 'qatar/master'
* qatar/master:
ac3enc: ARM optimised ac3_compute_matissa_size
ac3: armv6 optimised bit_alloc_calc_bap
fate: simplify fft test rules
avio: document avio_alloc_context.
lavf: make compute_chapters_end less picky.
sierravmd: fix Indeo3 videos
FFT: simplify fft8()
fate: add fixed-point fft/mdct tests
Fixed-point support in fft-test
ape: check that number of seektable entries is equal to number of frames
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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, |