> Le 8 mai 2020 à 15:51, Stanislas Defawes <sdefa...@ina.fr> a écrit :
>
>
>
>> Le 8 mai 2020 à 14:58, Stanislas Defawes <sdefa...@ina.fr> a écrit :
>>
>>
>>
>> Le 8 mai 2020 à 13:59, Edward Park
>> <kumowoon1...@gmail.com<mailto:kumowoon1...@gmail.com>> a écrit :
>>
>> Hi,
>> Thank’s for reply. Yes I try it and it works fine but with this argument
>> (Timecode), it’s going back to 00:00:00:00 when you seek and this is exactly
>> that I don’t want.
>>
>> Oh, I did not know this happened, it sounds like a small bug? Then I suppose
>> you could add setpts=PTS-STARTPTS before the drawtext filter and use the
>> original command you had, it will set the starting pts to be 0.
>>
>> Regards,
>> Ted Park
>>
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>> I'll try it yesterday but with a wrong syntax, then I try again now and it
>> works (good date and time) but the seeking problem is the same that with the
>> timecode syntax, it’s come back to 06:00:00 when you seek forward, ooooh it
>> was to good to be true !
>>
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>
> I try to pipe from ffmpeg (with fix PTS) to ffplay and then it’s works but
> audio and video are out of sync in this case and it’s re encoded off course….
> Is it possible to pipe from ffplay to ffplay ? I don’t find how to do that
>
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Well, the answer is No, ffplay is only a player so I found a solution for my
problem, if someone else in interested :
First : extraction of the start time of the first image with ffprobe :
ffprobe -v error -show_format -show_streams path/to/theFile.ts | grep
start_time | head -n 1
start_time=61880.537989
Keep the result as integer then calculate the timestamp of the time and date
you looking for (in my case 2020:05:01 06:00:00)
date -j -f "%Y:%m:%d %H:%M:%S" '2020:05:01 06:00:00' +%s
Result is 1588305600
Then 1588305600 - 61880 = 1588243720
Then ffplay command :
ffplay path/to/theFile.ts -vf "drawtext=text='%{pts\:localtime\:
1588243720\}':fontfile=/Library/Fonts/Arial.ttf:fontsize=48:fontcolor=white:box=1:boxborderw=6:boxcolor=black@0.75:x=(w-text_w)/2:y=h-text_h-20
»
It work’s for me and it’s seekable.
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