[FFmpeg-devel] [PATCH] lavf: add textdata virtual demuxer and demuxer

Stefano Sabatini stefasab at gmail.com
Tue May 24 19:50:26 CEST 2016


On date Monday 2016-05-23 15:31:33 +0200, Moritz Barsnick encoded:
> On Thu, May 19, 2016 at 19:29:40 +0200, Stefano Sabatini wrote:
> > > > +ffmpeg -i INPUT -codec copy -map 0 -an -vn data.fftd
> 
> BTW, is this possibly the first and only muxer which can actually remux
> timed_id3? I have been trying to *extract* timed_id3, but haven't
> figured out into which format I can dump data streams.
> 
> > Something like this should work:
> > ffmpeg -i INPUT -codec copy -map 0 -an -vn data.fftd
> 
> It turns out that my timed_id3 streams are either empty, or are not
> being read. AFAICT, the information I was hoping to find in there was
> apparently actually provided by Icy-metadata. (I was expecting either
> track information for radio programs or subtitles for video streams in
> the timed_id3.)
> 
> (I had been dumping HLS's MPEG-TS segments to MPEG-TS files, and they
> were showing timed_id3 data streams.)
> 
> So, no testing possibly from me, at least until I know for sure what's
> in those streams of mine.
> 
> Moritz
> 

> P.S.: Does the patch trigger deprecation warnings due to its own
>       nature, or due to something earlier in the chain? ffmpeg-cli
>       even?

What warnings?

> 
> barsnick at sunshine:~/Downloads/Radio/NRK/Amund/2015-12-28 > ffmpeg -i nrk-outputfile-NzyUCD.ts -map 0:d -c copy nrk-outputfile-NzyUCD.fftd
> ffmpeg version N-80066-g566be4f Copyright (c) 2000-2016 the FFmpeg developers
>   built with icc (ICC) 14.0.3 20140422
>   configuration: --prefix=/usr/new/tools/video/install/ffmpeg/2016-05-22 --cc=icc --cxx=icpc --enable-gpl --enable-version3 --enable-nonfree --disable-shared --enable-gnutls --enable-libcdio --enable-libfreetype --enable-libx264 --enable-libvpx --enable-libmp3lame --enable-openal --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtwolame --enable-libopenjpeg --enable-librtmp --enable-libass --enable-libv4l2 --enable-libvidstab --enable-libfdk-aac --enable-libsmbclient --enable-libzvbi --enable-libtesseract --enable-libzmq
>   libavutil      55. 24.100 / 55. 24.100
>   libavcodec     57. 43.100 / 57. 43.100
>   libavformat    57. 37.100 / 57. 37.100
>   libavdevice    57.  0.101 / 57.  0.101
>   libavfilter     6. 46.100 /  6. 46.100
>   libswscale      4.  1.100 /  4.  1.100
>   libswresample   2.  0.101 /  2.  0.101
>   libpostproc    54.  0.100 / 54.  0.100
> [mpegts @ 0xaf60900] start time for stream 1 is not set in estimate_timings_from_pts
> Input #0, mpegts, from 'nrk-outputfile-NzyUCD.ts':
>   Duration: 02:56:59.75, start: 10.099667, bitrate: 176 kb/s
>   Program 1
>     Stream #0:0[0x100]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 175 kb/s
>     Stream #0:1[0x101]: Data: timed_id3 (ID3  / 0x20334449)

> [fftextdata @ 0xaf687a0] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.

This one is currently shown in every conversion.

[...]
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FFmpeg = Fundamental and Fostering Minimalistic Philosophical Ecumenical Ghost


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