diff options
Diffstat (limited to 'libavfilter/avfilter.h')
| -rw-r--r-- | libavfilter/avfilter.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h index 5d4cd6ce12..7aac3cf934 100644 --- a/libavfilter/avfilter.h +++ b/libavfilter/avfilter.h @@ -445,11 +445,12 @@ struct AVFilterLink { int age_index; /** - * Frame rate of the stream on the link, or 1/0 if unknown; - * if left to 0/0, will be automatically be copied from the first input + * Frame rate of the stream on the link, or 1/0 if unknown or variable; + * if left to 0/0, will be automatically copied from the first input * of the source filter if it exists. * * Sources should set it to the best estimation of the real frame rate. + * If the source frame rate is unknown or variable, set this to 1/0. * Filters should update it if necessary depending on their function. * Sinks can use it to set a default output frame rate. * It is similar to the r_frame_rate field in AVStream. |