From: Stefano Sabatini <stefasab@gmail.com>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Cc: Stefano Sabatini <stefasab@gmail.com>
Subject: [FFmpeg-devel] [PATCH 2/2] doc/utils/eval: clarify meaning of random* seed value
Date: Mon, 1 Jan 2024 20:38:59 +0100
Message-ID: <20240101193859.1038078-2-stefasab@gmail.com> (raw)
In-Reply-To: <20240101193859.1038078-1-stefasab@gmail.com>
Possible address trac issue:
http://trac.ffmpeg.org/ticket/10763
---
doc/utils.texi | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/doc/utils.texi b/doc/utils.texi
index ac9b63826e..554a07f057 100644
--- a/doc/utils.texi
+++ b/doc/utils.texi
@@ -944,11 +944,17 @@ Return a pseudo random value between 0.0 and 1.0. @var{idx} is the
index of the internal variable which will be used to save the
seed/state.
+The seed is represented as 64-bit unsigned integer. You can use a
+fraction of @code{UINT64_MAX} to initialize it.
+
@item randomi(idx, min, max)
Return a pseudo random value in the interval between @var{min} and
@var{max}. @var{idx} is the index of the internal variable which will
be used to save the seed/state.
+The seed is represented as 64-bit unsigned integer. You can use a
+fraction of @code{UINT64_MAX} to initialize it.
+
@item root(expr, max)
Find an input value for which the function represented by @var{expr}
with argument @var{ld(0)} is 0 in the interval 0..@var{max}.
--
2.34.1
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next prev parent reply other threads:[~2024-01-01 19:39 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-01 19:38 [FFmpeg-devel] [PATCH 1/2] libavutil/eval: introduce UINT64_MAX constant Stefano Sabatini
2024-01-01 19:38 ` Stefano Sabatini [this message]
2024-01-03 11:20 ` [FFmpeg-devel] [PATCH 2/2] doc/utils/eval: clarify meaning of random* seed value Michael Koch
2024-01-03 16:14 ` Stefano Sabatini
2024-01-03 17:04 ` Michael Koch
2024-01-03 18:36 ` Michael Koch
2024-01-03 22:29 ` Michael Niedermayer
2024-01-02 0:10 ` [FFmpeg-devel] [PATCH 1/2] libavutil/eval: introduce UINT64_MAX constant Michael Niedermayer
2024-01-03 16:17 ` Stefano Sabatini
2024-01-03 19:40 ` Michael Niedermayer
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