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author | Michael Niedermayer <michaelni@gmx.at> | 2011-12-03 21:16:46 +0100 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2011-12-05 03:22:04 +0100 |
commit | dff97be8084594a0bd900782ca91612680c77bbc (patch) | |
tree | 66b447cd6f534eb84a036cbc0807621e8cb23a16 /libavutil/opt.h | |
parent | 618fb9cc062c6ca1146cc90911daab5a2317b25f (diff) | |
download | ffmpeg-streaming-dff97be8084594a0bd900782ca91612680c77bbc.zip ffmpeg-streaming-dff97be8084594a0bd900782ca91612680c77bbc.tar.gz |
av_opt: add av_opt_ptr() to return a pointer to a field of a object based on
an AVClass
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavutil/opt.h')
-rw-r--r-- | libavutil/opt.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/libavutil/opt.h b/libavutil/opt.h index 5fce09a..2d282b3 100644 --- a/libavutil/opt.h +++ b/libavutil/opt.h @@ -586,6 +586,17 @@ int av_opt_get_double(void *obj, const char *name, int search_flags, double int av_opt_get_q (void *obj, const char *name, int search_flags, AVRational *out_val); /** * @} + */ +/** + * Gets a pointer to the requested field in a struct. + * This function allows accessing a struct even when its fields are moved or + * renamed since the application making the access has been compiled, + * + * @returns a pointer to the field, it can be cast to the correct type and read + * or written to. + */ +void *av_opt_ptr(const AVClass *class, void *obj, const char *name); +/** * @} */ |