[FFmpeg-user] bitmap-subtitle in stream

[Thomas Schmiedl]

Am 26.06.2018 um 22:44 schrieb Carl Eugen Hoyos:
> 2018-06-26 19:57 GMT+02:00, Thomas Schmiedl <thomas.schmiedl at web.de>:
> 
>> For a test, I exported a bitmap-subtitle in "Subtitle Edit" and run this
>> ffmpeg (git-version) command:
>>
>> ffmpeg -i
>> http://62.113.210.250/medienasa-live/_definst_/mp4:punktum_high/playlist.m3u8
>> -i sub.idx -i sub.sub -map 0:v -map 0:a -c copy -map 1 -c:s:1
>> dvd_subtitle -metadata:s:s:1 language=eng -movflags
>> frag_keyframe+empty_moov -bsf:a aac_adtstoasc -f mp4 -listen 1
>> http://192.168.178.22:1234
>>
>> The output from http://192.168.178.22:1234 was served via
>> Gerbera-mediaserver to a Panasonic-TV. The TV could not display the
>> video and ffmpeg exited with "broken pipe".
> 
> Does it work without subtitles?
No, it doesn't work. The main problem is still the listen mode. I 
contacted Panasonic-support for help. Maybe you could test listen mode 
on your TV device.
> 
> I don't think dvdsub in mov is widely supported, test dvbsub in
> mpegts (but note that the mpegts muxer has known issues, only
> test one video and at most one audio stream for a start).
It also doesn't work, because of the listen mode. How to generate dvbsub 
from text or image?
> 
> Carl Eugen
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