[FFmpeg-user] Error encodng dvb subtitles

Naveen naveen.mr at gmail.com
Tue Jan 28 14:40:23 CET 2014


Also I observe this when encoding subtitles as in my last mail

[adts @ 0x3f4d940] Encoder did not produce proper pts, making some up.


On Tue, Jan 28, 2014 at 1:37 PM, Naveen <naveen.mr at gmail.com> wrote:

> *Does it work if you don't convert the srt file?*
> Good question, encoding goes through fine and when file is played - it is
> shown as one of stream in command line but subtitle is not seen in video :(
> (output of ffplay at end of mail)
>
>
> * (Why did you convert it?)*
> Read in one of the forum threads that ffmpeg does not like {dot}srt file
> and hence it had to be converted to {dot}sub
>
>
> * What is a "sub" file? Can you provide a sample?*
> Sorry, by sub file I wanted to mean {dot}sub file = subtitle file. This is
> as pasted below
>
>
> {480}{585}Hello world, Show me the subtitles in DVB TS
>
>
>
>
> * ~/ffmpeg_sources/ffmpeg/ffplay bbcClick-subtitle.ts *
> ffplay version git-2013-10-25-d9ad305 Copyright (c) 2003-2013 the FFmpeg
> developers
>
>   built on Jan 19 2014 20:41:59 with gcc 4.7 (Ubuntu/Linaro 4.7.3-1ubuntu1)
>   configuration: --prefix=/home/nrudrapp/ffmpeg_build
> --extra-cflags=-I/home/nrudrapp/ffmpeg_build/include
> --extra-ldflags=-L/home/nrudrapp/ffmpeg_build/lib
> --bindir=/home/nrudrapp/bin --extra-libs=-ldl --enable-gpl --enable-libass
> --enable-libfdk-aac --enable-libmp3lame --enable-libopus --enable-libtheora
> --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree
> --enable-x11grab --enable-openssl --extra-cflags='-fprofile-arcs
> -ftest-coverage' --extra-ldflags='-fprofile-arcs -ftest-coverage'
>
>   libavutil      52. 47.101 / 52. 47.101
>   libavcodec     55. 38.101 / 55. 38.101
>   libavformat    55. 19.104 / 55. 19.104
>   libavdevice    55.  5.100 / 55.  5.100
>   libavfilter     3. 89.100 /  3. 89.100
>   libswscale      2.  5.101 /  2.  5.101
>   libswresample   0. 17.104 /  0. 17.104
>   libpostproc    52.  3.100 / 52.  3.100
> *[NULL @ 0x7f63b800ab80] start time is not set in
> estimate_timings_from_pts* ??
> Input #0, mpegts, from 'bbcClick-subtitle.ts':
>   Duration: 00:24:24.08, start: 1.400000, bitrate: 564 kb/s
>
>   Program 1
>     Metadata:
>       service_name    : Service01
>       service_provider: FFmpeg
>     Stream #0:0[0x100]: Video: h264 (Constrained Baseline) ([27][0][0][0]
> / 0x001B), yuv420p, 640x360, 25 fps, 25 tbr, 90k tbn, 50 tbc
>     Stream #0:1[0x101](und): Audio: aac ([15][0][0][0] / 0x000F), 44100
> Hz, stereo, fltp, 94 kb/s
>     Stream #0:2[0x102](eng): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
>
>
>
> On Tue, Jan 28, 2014 at 1:15 PM, Carl Eugen Hoyos <cehoyos at ag.or.at>wrote:
>
>> Naveen <naveen.mr <at> gmail.com> writes:
>>
>> > I am trying to encode a subtitle (.sub) to a MPEG-TS
>> > file as shown below (in bold).
>> > The subtitle file is just one line file which was
>> > converted from .srt file as shown below
>>
>> Does it work if you don't convert the srt file?
>> (Why did you convert it?)
>>
>> What is a "sub" file? Can you provide a sample?
>>
>> Carl Eugen
>>
>> _______________________________________________
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>>
>
>
>
> --
> regards,
> naveen
>



-- 
regards,
naveen


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