std::atomic<unsigned> audio_source_channel{0};
std::unique_ptr<movit::EffectChain> display_chain;
GLuint cbcr_program_num; // Owned by <resource_pool>.
+ GLuint cbcr_vbo; // Holds position and texcoord data.
+ GLuint cbcr_position_attribute_index, cbcr_texcoord_attribute_index;
std::unique_ptr<H264Encoder> h264_encoder;
// Effects part of <display_chain>. Owned by <display_chain>.