libavcodec/utils.c@ff_thread_ref_frame;
libavcodec/utils.c@ff_thread_get_buffer;
libavcodec/h264_slice.c@h264_field_start;libavcodec/pthread_frame.c@ff_thread_report_progress	
libavcodec/pthread_frame.c@ff_thread_report_progress;
libavcodec/pthread_frame.c@thread_get_buffer_internal;
libavcodec/pthread_frame.c@ff_thread_await_progress;
libavcodec/pthread_frame.c@ff_thread_release_buffer;
libavcodec/thread.h@ThreadFrame;
