Alaric Senat authored Jul 19, 2023 and Steve Lhomme committed Jul 21, 2023

The documentation and code-usage state that streams cannot have that
control fail, only some types of demuxes can.

From the demuxer documentation:
>   /** Retrieves the PTS delay (roughly the default buffer duration).
>  * Can fail only if synchronous and <b>not</b> an access-demuxer. The
>  * underlying input stream then determines the PTS delay.
>  *
>  * arg1= vlc_tick_t * */
> DEMUX_GET_PTS_DELAY = 0x101,

From the stream documentation:
> STREAM_GET_PTS_DELAY = 0x101,/**< arg1= vlc_tick_t* res=cannot fail */

This patch reflects this behavior in the stream API.