text avm_codec_dec_init_ver
text avm_codec_decode
text avm_codec_get_frame
text avm_codec_get_stream_info
text avm_codec_peek_stream_info
text avm_codec_set_frame_buffer_functions
text avm_obu_type_is_valid
text avm_obu_type_to_string
text avm_read_obu_header
