[FFmpeg-user] Copy DVB subtitles

[Mitja Pirih]

Hi,

I am trying to copy dvb subtitles from a multicast stream to a rtmp
stream (flv container). I am probably doing something wrong or maybe the
container does not accept dvb_subtitles format? I can't find anything
usable in docs.

I've got this:
Stream #0:0[0xc7]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002),
yuv420p(tv), 720x576 [SAR 64:45 DAR 16:9], max. 15000 kb/s, 25 fps, 25
tbr, 90k tbn, 50 tbc
Stream #0:1[0xc8]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo,
s16p, 192 kb/s
Stream #0:2[0xcb](slv): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
Stream #0:3[0xcc](mac): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)

I am trying to copy subtitles to a rtmp stream: -c:v copy -c:a copy
-scodec copy -f flv rtmp://localhost:1935/test/stream1
What I get is this error:
Could not write header for output file #0 (incorrect codec parameters
?): Invalid data found when processing input

If I use something like this: -c:v copy -c:a copy -scodec copy output.ts
it works as expected. So I suppose what I am trying to do is not
compatible with flv. What options do I have?


Thanks.