> On Nov 22, 2023, at 17:40, Zhao Zhili <quinkbl...@foxmail.com> wrote:
> 
> 
> 
>> On Nov 22, 2023, at 17:33, Martin Storsjö <mar...@martin.st> wrote:
>> 
>> On Wed, 22 Nov 2023, Zhao Zhili wrote:
>> 
>>> 
>>> 
>>>> On Nov 15, 2023, at 21:24, Zhao Zhili <quinkbl...@foxmail.com> wrote:
>>>> 
>>>> From: Zhao Zhili <zhiliz...@tencent.com>
>>>> 
>>>> Signed-off-by: Zhao Zhili <zhiliz...@tencent.com>
>>>> ---
>>>> libavformat/rtmpproto.c | 3 +++
>>>> 1 file changed, 3 insertions(+)
>>>> 
>>>> diff --git a/libavformat/rtmpproto.c b/libavformat/rtmpproto.c
>>>> index 98718bc6da..a0c6195eb2 100644
>>>> --- a/libavformat/rtmpproto.c
>>>> +++ b/libavformat/rtmpproto.c
>>>> @@ -2635,6 +2635,9 @@ static int rtmp_open(URLContext *s, const char *uri, 
>>>> int flags, AVDictionary **o
>>>> 
>>>>   if (rt->listen_timeout > 0)
>>>>       rt->listen = 1;
>>>> +    /* Pass rw_timeout to underlying transport protocol */
>>>> +    if (s->rw_timeout > 0)
>>>> +        av_dict_set_int(opts, "rw_timeout", s->rw_timeout, 0);
>>> 
>>> OK, I made a mistake. Since ffurl_open_whitelist copy from parent 
>>> automatically,
>>> this is a NOP. Will revert this commit.
>> 
>> Thanks! I was just starting to look into this, to confirm this as well, but 
>> it's good if you've come to the same conclusion already.
>> 
>> It's interesting how we end up with similar changes for this multiple times, 
>> see https://ffmpeg.org/pipermail/ffmpeg-devel/2023-July/312362.html for 
>> another similar patch a few months ago, when it should be working already.
>> 
>> The fact that so many protocols have similar but vaguely different timeout 
>> options, each defined as a per-protocol private option, is a bit of a mess; 
>> that's why this approach, of actually sharing the same variable through the 
>> URLContext hierarchy, tries to avoid that to some extent.
> 
> I have taken code from ftp.c as reference:
> ```
>        if (s->rw_timeout != -1) {
>            av_dict_set_int(&opts, "timeout", s->rw_timeout, 0);
>        } /* if option is not given, don't pass it and let tcp use its own 
> default */
> ```
> 
> Now it’s obvious that code comes before 
> ```
> commit fab8156b2f30666adabe227b3d7712fd193873b1
> Author: Martin Storsjö
> Date:   Sat Feb 28 02:00:50 2015 +0200
> 
>    avio: Copy URLContext generic options into child URLContexts
> ```
> 
> Should we remove that part from ftp.c?
> 
> It worth to note that there is a small difference between rw_timeout and 
> timeout
> option for TCP:
> 
> 1. timeout apply to accept, read and write
> 2. rw_timeout apply to read and write, but not accept.

I mean connect.

> 
> What do you think?
> 
>> 
>> // Martin
>> 
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