[FFmpeg-user] HELP

[Paul B Mahol]

On 10/25/18, Erik Gaudin <erik.gaudin at cbc.ca> wrote:
> How to display Close Caption on the screen  ?
>
> When i open our internal stream with VLC, i can displayed Substitle. But
> can't find how to do it with ffplay.exe (windows)
>
> Here what i use to display the stream : ffplay
> udp://@239.255.123.1:1234 -analyzeduration
> 200
>
> I use the last argument for low latency.
>
>
> Here what appear in DOS when start FFPLAY with URL only :
>
> Input #0, mpegts, from 'udp://@239.255.179.6:5000':q=    0B f=0/0
>   Duration: N/A, start: 86892.634178, bitrate: N/A
>   Program 2672
>     Stream #0:0[0xa72]: Video: hevc (Main) ([36][0][0][0] / 0x0024),
> yuv420p(tv), 1280x720 [SAR 1:1 DAR 16:9], Closed Captions, 59.94 fps, 59.94
> tbr, 90k tbn, 59.94 tbc
>     Stream #0:1[0xa73](eng): Audio: aac_latm (LC) ([17][0][0][0] / 0x0011),
> 48000 Hz, stereo, fltp
>     Stream #0:2[0xa74](fre): Audio: aac_latm (LC) ([17][0][0][0] / 0x0011),
> 48000 Hz, stereo, fltp
>
>
> In VLC, CC are in Flux # 3  (Flux 0 = video, Flux 1 & 2 Audio track)
>
> I try multiple argument ( like -sst) but nothing happen. Any idea ?

FFplay is very rudimentary player, it does not support subtitles or
caption out of box.

Use something much more powerful like mpv.