On Fri, Sep 22, 2017 at 08:52:26AM +0200, Tobias Rapp wrote: > On 22.09.2017 01:58, Michael Niedermayer wrote: > >On Thu, Sep 21, 2017 at 04:55:51PM +0200, Tobias Rapp wrote: > >>Align order of "start_time" option to documentation and add missing > >>AV_OPT_FLAG_FILTERING_PARAM flag. Fix indent of "round" named constants > >>and clear unused field values. > >> > >>Also fix some documentation cosmetics. > >> > >>Signed-off-by: Tobias Rapp <t.r...@noa-archive.com> > >>--- > >> doc/filters.texi | 4 ++-- > >> libavfilter/vf_fps.c | 12 ++++++------ > >> 2 files changed, 8 insertions(+), 8 deletions(-) > >> > >>diff --git a/doc/filters.texi b/doc/filters.texi > >>index 830de54..96b3dfd 100644 > >>--- a/doc/filters.texi > >>+++ b/doc/filters.texi > >>@@ -8670,12 +8670,12 @@ It accepts the following parameters: > >> The desired output frame rate. The default is @code{25}. > >> @item round > >>-Rounding method. > >>+Timestamp (PTS) rounding method. > >> Possible values are: > >> @table @option > >> @item zero > >>-zero round towards 0 > >>+round towards 0 > >> @item inf > >> round away from 0 > >> @item down > >>diff --git a/libavfilter/vf_fps.c b/libavfilter/vf_fps.c > >>index 1e5d07e..0db2b48 100644 > >>--- a/libavfilter/vf_fps.c > >>+++ b/libavfilter/vf_fps.c > >>@@ -65,13 +65,13 @@ typedef struct FPSContext { > >> #define F AV_OPT_FLAG_FILTERING_PARAM > >> static const AVOption fps_options[] = { > >> { "fps", "A string describing desired output framerate", > >> OFFSET(framerate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, 0, INT_MAX, > >> V|F }, > >>- { "start_time", "Assume the first PTS should be this value.", > >>OFFSET(start_time), AV_OPT_TYPE_DOUBLE, { .dbl = DBL_MAX}, -DBL_MAX, > >>DBL_MAX, V }, > >> { "round", "set rounding method for timestamps", OFFSET(rounding), > >> AV_OPT_TYPE_INT, { .i64 = AV_ROUND_NEAR_INF }, 0, 5, V|F, "round" }, > >>- { "zero", "round towards 0", OFFSET(rounding), AV_OPT_TYPE_CONST, > >>{ .i64 = AV_ROUND_ZERO }, 0, 5, V|F, "round" }, > >>- { "inf", "round away from 0", OFFSET(rounding), AV_OPT_TYPE_CONST, > >>{ .i64 = AV_ROUND_INF }, 0, 5, V|F, "round" }, > >>- { "down", "round towards -infty", OFFSET(rounding), AV_OPT_TYPE_CONST, > >>{ .i64 = AV_ROUND_DOWN }, 0, 5, V|F, "round" }, > >>- { "up", "round towards +infty", OFFSET(rounding), AV_OPT_TYPE_CONST, > >>{ .i64 = AV_ROUND_UP }, 0, 5, V|F, "round" }, > >>- { "near", "round to nearest", OFFSET(rounding), AV_OPT_TYPE_CONST, > >>{ .i64 = AV_ROUND_NEAR_INF }, 0, 5, V|F, "round" }, > >>+ { "zero", "round towards 0", 0, AV_OPT_TYPE_CONST, > >>{ .i64 = AV_ROUND_ZERO }, 0, 0, V|F, "round" }, > >>+ { "inf", "round away from 0", 0, AV_OPT_TYPE_CONST, > >>{ .i64 = AV_ROUND_INF }, 0, 0, V|F, "round" }, > >>+ { "down", "round towards -infty", 0, AV_OPT_TYPE_CONST, > >>{ .i64 = AV_ROUND_DOWN }, 0, 0, V|F, "round" }, > >>+ { "up", "round towards +infty", 0, AV_OPT_TYPE_CONST, > >>{ .i64 = AV_ROUND_UP }, 0, 0, V|F, "round" }, > >>+ { "near", "round to nearest", 0, AV_OPT_TYPE_CONST, > >>{ .i64 = AV_ROUND_NEAR_INF }, 0, 0, V|F, "round" }, > >>+ { "start_time", "Assume the first PTS should be this value.", > >>OFFSET(start_time), AV_OPT_TYPE_DOUBLE, { .dbl = DBL_MAX}, -DBL_MAX, > >>DBL_MAX, V|F }, > >> { NULL } > > > >This breaks shorthand notation like fps=30:-0.01 > > The order of options according to the documentation is > [fps]:[round]:[start_time] (see > https://ffmpeg.org/ffmpeg-filters.html#fps). It even explicitly > says: > > "Alternatively, the options can be specified as a flat string: fps[:round]." > > But if preferred I can update the documentation instead.
Whichever makes more users happy. (we maybe should avoid 2 different implementation behaviours if we dont already have 2, i have not checked if we had a different order in the code in the past) [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB There will always be a question for which you do not know the correct answer.
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