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Médias (21)
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1,000,000
27 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Demon Seed
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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The Four of Us are Dying
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Corona Radiata
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Lights in the Sky
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Head Down
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
Autres articles (105)
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Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.
Sur d’autres sites (10357)
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Looking for an idea for batch processing of sound and subtitles
21 décembre 2020, par yan chenI want to add commentary and subtitles to more than 10 videos.
For the commentary copy of each video, I use a script to convert the text into a voice mp3 file.
I manually create a subtitle srt file for one of the videos.
I Can successfully synthesize video, voice mp3 and subtitles through FFMPEG, but there are many video files, each of which is time-consuming to manually create srt files.


I have tried to use a script to automatically generate a text every 3 seconds, but the sound and subtitles are not synchronized.


I googled for more than an hour, but I didn’t find a solution to automate the production of subtitles. Can someone provide me with some ideas ? Thank you


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avformat/subtitles : Check pts difference before use
25 avril 2021, par Michael Niedermayeravformat/subtitles : Check pts difference before use
Fixes : signed integer overflow : 0 - -9223372036854775808 cannot be represented in type 'long'
Fixes : 29102/clusterfuzz-testcase-minimized-ffmpeg_dem_MPL2_fuzzer-6747053545881600Found-by : continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by : Michael Niedermayer <michael@niedermayer.cc> -
ffmpeg set subtitles track as default
21 novembre 2016, par blörkBy adding an .ass subtitles track to an mkv video with ffmpeg, it isn’t set as default track, so on playback you have to manually turn on subtitles. Is it possible to set the default flag for the subtitles track ?
ffmpeg command used :
ffmpeg -i video.mp4 -i subtitles.ass -c:v libx264 -preset veryslow \
-pix_fmt yuv420p10le -c:a copy -c:s copy output.mkvNote that I want to keep .ass subtitle format, not convert the subtitles to mov_text like suggested in this similar question :
How to set default streams with ffmpegThere is the possibility to set the default flag afterwards with mkvpropedit like this :
mkvpropedit output.mkv --edit track:s1 --set flag-default=1
But is it possible to do this directly with ffmpeg ?