{"video_device_index","select video device by index for devices with same name (starts at 0)",offsetof(AVFContext,video_device_index),AV_OPT_TYPE_INT,{.i64=-1},-1,INT_MAX,AV_OPT_FLAG_DECODING_PARAM},
{"audio_device_index","select audio device by index for devices with same name (starts at 0)",offsetof(AVFContext,audio_device_index),AV_OPT_TYPE_INT,{.i64=-1},-1,INT_MAX,AV_OPT_FLAG_DECODING_PARAM},