+ std::string x264_preset = X264_DEFAULT_PRESET;
+ std::string x264_tune = X264_DEFAULT_TUNE;
+ int x264_bitrate = DEFAULT_X264_OUTPUT_BIT_RATE; // In kilobit/sec.
+ int x264_vbv_max_bitrate = -1; // In kilobits. 0 = no limit, -1 = same as <x264_bitrate> (CBR).
+ int x264_vbv_buffer_size = -1; // In kilobits. 0 = one-frame VBV, -1 = same as <x264_bitrate> (one-second VBV).
+ bool enable_alsa_output = true;
+ std::map<int, int> default_stream_mapping;