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| author | Nicolas George <nicolas.george@normalesup.org> | 2012-07-29 18:58:42 +0200 |
|---|---|---|
| committer | Nicolas George <nicolas.george@normalesup.org> | 2012-08-04 21:49:05 +0200 |
| commit | 8d6eed7b56ee83e6e0a7d6c1fe4c87754fd88560 (patch) | |
| tree | fc724ab08a3b4ee9eab31bbd45ae04d2723cf4e0 /libavfilter/avfilter.h | |
| parent | 8ef740ce01abff3bc7df0f79803a3dc781d89daa (diff) | |
lavfi: document the constraints on incoming frames.
Diffstat (limited to 'libavfilter/avfilter.h')
| -rw-r--r-- | libavfilter/avfilter.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h index 0e7111d53b..54a0b97897 100644 --- a/libavfilter/avfilter.h +++ b/libavfilter/avfilter.h @@ -260,6 +260,12 @@ struct AVFilterPad { * NULL, the filter layer will default to storing a reference to the * picture inside the link structure. * + * The reference given as argument is also available in link->cur_buf. + * It can be stored elsewhere or given away, but then clearing + * link->cur_buf is advised, as it is automatically unreferenced. + * The reference must not be unreferenced before end_frame(), as it may + * still be in use by the automatic copy mechanism. + * * Input video pads only. * * @return >= 0 on success, a negative AVERROR on error. picref will be |