Stream foscam c1 camera to echo show 5


i am trying to stream my “old” foscam c1 camera to my echo show 5.

i can see ,by the foscam integration, the frontend of my camera on HA

but when i call the service, i get no error in the log but
nothing appears in my echo show

service: camera.play_stream
media_player: media_player.carlier_s_echo_show_5_2nd_gen
entity_id: camera.c1

when i call the service: success…
log: no messages ??

thanks for your support